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    The Assessment of Urban Furniture for the Disabled (Case Study: Shiraz City and Large Park). Davarinezhad M., Rahnama M. J. Civil Eng. Urban., 5(1): 16-21, 2015; pii:S225204301500004-5 Abstract Suiting urban area for physical and motor disabled is considered as justice-centered approaches in planning and urban management. However, many urban public areas such as streets, parks and city centers in most cities like Shiraz face with the problem of inappropriate spaces for the disabled. In this regard, the purpose of this article is to analysis and pathology of urban furniture in downtown and Shiraz Grand Park and present strategies for suiting these spaces to the Disabled. Methodology of this study is applicable with the aim of research and analytical-descriptive with the framework research that has been made in downtown and the Grand Park of Shiraz in the gauging method. Data collection tools are providing questionnaires, interview and observation. Keywords: Urban Furniture, Suiting Space, The Disabled, Shiraz [Full text-PDF] منبع: [Hidden Content] J. Civil Eng. Urban., 5 (1) 16-21, 2015.pdf
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    The Role of Citizen Participation in Renovation and Rehabilitation of Urban Ancient Texture (Case Study: Region 6 Ancient Texture in Qaemshahr, Iran). Bararpur S., Akhtarshenas Y. J. Civil Eng. Urban., 5(1): 12-15, 2015; pii:S225204301500003-5 Abstract This research emphasis the role of citizen participation in renovation and rehabilitation; And attempt to measurement the public partnership in the case study region that it's region 5 ancient texture in Qaemshahr. In this research pay to the region recognition and evaluation with the measurement and analytical method, and using measurement studies by using the questionnaire and participatory interview and essential interview, and use the observation, interview, documents method, analysis, case research methods. The statistical society are 10710 persons that 124 questionnaire sampled among this society. According to the result of measurement the participation in region 5 ancient texture, all of the region 5 occupant’s would like to participate in their neighbourhood development. Rehabilitation and renovation must be fulfilling in this region for solving physical and functional ancient. Accept the citizen participation is the best way for rehabilitation and renovation in this region. Keywords: Citizen Participation, Rehabilitation and Renovation, Ancient Texture, Qaemshahr [Full text-PDF] منبع: [Hidden Content] J. Civil Eng. Urban., 5 (1) 12-15, 2015.pdf
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    Simulation of Thermal Stratification and Salinity in Dam Reservoir Using CE-QUAL-W2 Software (Case study: Baft Dam). Ebrahimi M., Jabbari E., Abbasi H. J. Civil Eng. Urban., 5(1): 07-11, 2015; pii:S225204301500002-5 Abstract Thermal stratification and salinity is one of the most important problems which affect quality of the reserved waters in dams. In the present research, using the 2D and hydrodynamic software CE-QUAL-W2 and given the different flows (low water, normal and high water), thermal stratification and salinity have been studied. It has been concluded that a thermal stratification occurs for 9 months of the year, which starts in early April and reaches its peak in August and September (with a temperature difference of about 19℃ between super stratums an substratum), while complete mixing occurs mostly in February to March. In addition, the results suggest presence of salinity stratification simultaneous with thermal stratification. The greatest amount of salinity is found to be 307mg/L which given the desirable maximum (i.e.500mg/L) indicates a desirable state for the Baft dam reservoir in terms of drinking and agricultural water. Also water quality in the intakes of the Baft dam has been investigated which for a major part indicates the water’s desirable quality in the intakes. To increase quality of the Baft dam reservoir and to prevent its short life, such actions as discharge of the lower layers in September (thermal stratification peak) and in January (before mixing process), disturbing the thermal stratification created in the reservoir and the output water aeration from the intakes by the conventional methods can be taken. Keywords: Baft dam, CE-QUAL-W2 Software, Thermal Stratification, Salinity [Full text-PDF] منبع: [Hidden Content] J. Civil Eng. Urban., 5 (1) 07-11, 2015.pdf
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    The Investigation of Various Kinds of Guardian Structures, their Economics and Technical Comparison in Some of Under Construction Buildings in Ahwaz City. Abbasi Dezfouli A., Seyed Aghamiri S.T. J. Civil Eng. Urban., 5(1): 01-06, 2015; pii:S225204301500001-5 Abstract Lack of planting guardian structure in the time of drilling and excavation in high-density spots of urban is one of the issues that bring life and financial losses. In this study, various kinds of planting guardian structures by using a series of vast studies and interviewing with expert executives in different dimensions specifically it has been investigated from the point of view of construction management and has been considered the special environmental status of the city of Ahwaz. The present study is kind of a fundamental one that firstly it has been collected by studying the researches and updated articles, the presented instructions about the construction management and execution of guardian structure, and then documenting of information has been done by studying and through surveying of under construction structures, ultimately consulting with the executives and prominent professors has led us to provide solutions for choosing the best suited methods of guardian structures both economic and technical. The results of this research indicate that for any depth of excavation up to 10 meters regarding to the type of soil and the level of underground water, the suited guardian structure which is economic and technical among different methods, truss guardian structure and Reciprocal inhibition for different excavation surfaces is a good solution for the issue of construction in Ahwaz. Keywords: Guardian Structure, Excavation, Inhibition, Construction Management [Full text-PDF] منبع: [Hidden Content] J. Civil Eng. Urban., 5 (1) 01-06, 2015.pdf
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    Introducing a New Approach for Modelling the Near Field Effects in Probabilistic Seismic Hazard Analysis Original Article, D90 Mehri Dehno A., Mahdavi Adeli M. Journal. Civil Eng. Urban. 4(6): 592-598. 2014 ABSTRACT: In definitions of seismic hazard analysis, if the site distance from the fault causing earthquake is short, that site will be considered near fault. The recorded results of previous earthquakes have shown that in such site, the structures show very complex and different behaviour from far field area such that it is required to consider near fault seriously and independently. So far, various studies have been carried out to present a method for reliable modelling of near fault behaviour including the present study. In fact, so far, no reliable and definite method has been proposed for modelling of near field effects in probabilistic seismic hazard analysis and this study aims to take some steps in this area. The present study proposes a new solution based on combined use of both spectral attenuation relations, i.e. spectral attenuation relations with near field effect and spectral attenuation relations lacking near field effects, for calculation of probabilistic seismic hazard analysis. The results of this study indicate the capability of this new idea in modelling of near field effects for reliable estimation of seismic hazard. The results of this study show that the use of attenuation relations of near field, individually, for seismic hazard analysis, increases the spectral acceleration tangibly and unacceptably and is not much reliable. Thus, to overcome this deficiency, one can claim that the best solution for consideration of near field effects is to use the combination of both near and far field attenuation relations according to the proposed model in this study. Keywords: Earthquake, Fault, Near Fault, Probabilistic Seismic Hazard Analysis, Attenuation Relations منبع: [Hidden Content] دانلود: [Hidden Content].,%204%20(6)%20592-598,%202014.pdf
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    Study of Rasht Urban Parks by Using GIS (Case Study: Region 1) Original Article, D89 Hejazi S. A., Ooshaksaraie L., Hakimi Abed M. Journal. Civil Eng. Urban. 4(6): 586-591. 2014 ABSTRACT:Global tries to protect environment are for almost original ecosystems and have biodiversity and has paid less attention to nature near to workplace and humans living place, Small green urban place and their benefits for people .Urban parks and green and open spaces have strategic importance in our urban community life quality. Natural areas in addition to important bioenvironmental services such as air and water purification, sound and wind insulation and creating microclimate, prepare social and physiological services that are important to make cities livable and improve residents status. One of the urban critical problems is urban green space scarcity that effects on human life in different dimensions. Comparing to urbanization standards, in addition to low green space in different Iran cities, its undesirable dispersion also has created some problems that could refer to injustice green space distribution on the city and citizens accessibility difficulties. This paper aims to introduce urban green space importance to improve citizens’ status and urban development where live. Also current parks place in Rasht region one analyzed by using criteria closeness to residential areas , training centers, cultural and religious centers, commercial centers, official centers, river, access to main ways and far away current parks in GIS and AHP hierarchical analysis method. Keywords: Park, Green Space, Rasht, AHP, GIS منبع: [Hidden Content] دانلود: [Hidden Content].,%204%20(6)%20586-591,%202014.pdf J. Civil Eng. Urban., 4 (6) 586-591, 2014.pdf
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    Locating Temporary Settlements in Earthquake Crisis Using AHP and GIS (Case Study: Damavand Region) Original Article, D88 Esmailpour Zanjani N., Fallahi A., Motavafi S. Journal. Civil Eng. Urban. 4(6): 581-585. 2014 ABSTRACT: Planning before crisis occurrence is a key problem which managers are dealing with these days especially in the field of crisis management. The aim of this research is optimum locating of temporary accommodation for those injured after earthquake using model AHP and also by applying geographical information system GIS in Damavand Area. It is worth to mention that due to presence of main faults of Mosha, this county is a seismic one in Tehran Province. The research method used is descriptive-analytical method. In the first method a brief review of theoretical definitions of the research was provided and then AHP model was analyzed. After studying factors which are effective on environment, and population of Damavand, we dealt with weighting to parameters using analytical hierarchical process AHP. Finally, with the results we gained and by combining layers in software GIS we conducted a fine locating for setting up temporary accommodation resulting from earthquake. Keywords: Locating, Temporary Accommodation Basis, GIS, AHP منبع: [Hidden Content] دانلود: [Hidden Content].,%204%20(6)%20581-585,%202014.pdf J. Civil Eng. Urban., 4 (6) 581-585, 2014.pdf
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    An Economic – Structural Evaluation of the Accommodation of Nomads (Case Study: Baranjegan Nomads of Ghaenat in South Khorasan, Iran) Original Article, D87 Monazzam Esmailpoor A., Chehrazi E. Journal. Civil Eng. Urban. 4(6): 573-580. 2014 ABSTRACT: The preparation of land and the development of a country require special attention to all urban, rural and nomadic habitats. Accordingly, Iran’s nomadic community holds a significant status due to its deprivation and hardship. Therefore, the issue of settlement of the nomads has always been a major concern. This policy was prevalent in the Pahlavi era with a political bias and continued until the Fourth Development Plan of the country (2005-2009) with an outlook for sustainable development. This resulted in the formation of various villages or self-established centers the ignorance of which can give rise to the waste of finance and separation from spatial order of land. As one of the centers for the Iranian nomads, the province of South Khorasan accommodates different tribes and ethnic groups who have been settled down. The Bahlooli Tribe of Baranjegan area is one of the most genuine migrating tribe in this region and was the first to have been settled in South Khorasan. These people had a nomadic life just before 1993, but later due to the flood of 1993, their houses were totally destroyed and some of the nomads chose to lead a semi-nomadic life and some others totally settled, leading to the formation of the new village of Baranjegan. This research aims to evaluate the scheme of habitation of nomads (mainly on the economic-structural basis) in the Baranjegan region of Qaenaat city in South Khorasan. The study is a field research which includes observations and interviews with the nomads. The study also follows a library method making use of the articles and documents and the results of the statements made by the natives of the areas and observations of their living conditions and the obstacles and challenges that they had faced. Keywords: Economic Development, Bahlooli Tribe, Baranjegan, Nomadic Community, Settlement of Nomads, South Khorasan منبع: [Hidden Content] دانلود: [Hidden Content].,%204%20(6)%20573-580,%202014.pdf J. Civil Eng. Urban., 4 (6) 573-580, 2014.pdf
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    Evaluating Human Consolation in Sadra Town Regarding Bioclimatic Indexes Original Article, D86 Mogholi M., Akhgar Sh. Journal. Civil Eng. Urban. 4(1): 568-572. 2014 ABSTRACT: As it is one of the most important vital tenets to choose a suitable place to live, it is better to evaluate the relation between the human healthiness, and natural and climatic features as temperature, humidity, sun light, and daylight hours which are the important parameters in human life for finding the best place considering consolation and convenience. In this part of the research, it is tried to check the convenience or the inconvenience of life in Sadra from the point of view of climate using some climatic indexes such as day convenience factor, night convenience factor, Beaker bioclimatic index and thermo-hygrometric index. The research results show that there is not any bioclimatic pressure and the climate is pleasant in Sadra throughout the year. It is possible to help Sadra for accomplishing the best city programming to make it progress by giving the city features to civil programmers and with the help of evaluating the indexes and the models according to human convenience or inconveniency in different times of the year. Keywords: Bioclimatic Consolation, Sadra Town, Terjang Index, Beaker Index, Thermo-Hygrometric Index منبع: [Hidden Content] دانلود: [Hidden Content].,%204%20(6)%20568-572,%202014.pdf J. Civil Eng. Urban., 4 (6) 568-572, 2014.pdf
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    Monitoring Land Subsidence of Mashhad Valley of IRAN Using Leveling, GPS Survey and InSAR Techniques Original Article, D85 Amrouni Hosseini M. and Bayat H. Journal. Civil Eng. Urban. 4(6): 562-567. 2014 ABSTRACT: In Northwest of Mashhad, one of the cities of Iran, land subsidence phenomenon is taking place highly due to the Irregular withdrawal of groundwater. Maximum transfer rate induced land subsidence is estimated about 23 cm per year by help of continuous GPS observations and precise levelling data provided by the National Cartographic Centre of Iran (NCC). GPS stations give precise continuous measurements but at a few sparse points of the deformed area. Therefore, they are not able to map the extent and pattern of the ground surface deformation caused by subsidence. Nowadays, the ability of In SAR in displacement of ground level continuous coverage with high spatial resolution has been proved with less than one centimetre accuracy. In this research, areas and the pattern of land subsidence was measured using the mentioned technique. 10 ENVISAT ASAR Radar images have been used to calculate 17 incremental interferograms and were determined by time series In SAR analysis of ground level in each radar data acquisition date. Present results revealed long and short term land subsidence changes in mentioned period. To detect land subsidence rates, the Average velocity map of movement were prepared with help of In SAR time series analysis results. Areas with different rates displacement was marked in this map. Based on this map, the maximum land subsidence rate was estimated about 24 cm. Comparing time series analysis results of In SAR and GPS measurements and precise levelling showed the high compliance of these data. Then an optimal GPS monitoring network was designed with image of the average speed of displacement to determine the horizontal displacement. Keywords: Land Subsidence, Mashhad valley, Levelling, GPS Survey, InSAR Techniques. منبع: [Hidden Content] دانلود: [Hidden Content].,%204%20(6)%20562-567,%202014.pdf J. Civil Eng. Urban., 4 (6) 562-567, 2014.pdf
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    یک طراح سازه خوب لازم است که دارای ویژگی های زیر باشد : آشنایی و دید کلی نسبت به اصول کلی تحلیل سازه ها آشنایی با مبانی طراحی سازه ها ( فولادی و بتنی) آشنایی با ضوابط روز آیین نامه های داخلی و ترجیحاً خارجی معتبر آشنایی با نرم افزارهای مرتبط طراحی سازه آشنایی با نکات اجرایی مرتبط با بحث طراحی سازه از موارد بالا معمولاً مورد 1 و 2 و تا حدی مورد 3 در دوره های دانشگاهی آموزش داده میشود. پس اگر دروس مرتبط را به خوبی در دانشگاه فرا گرفته اید در مورد آنها خیلی نباید نگران باشید، در غیر این صورت بهتر است دوره کلی نسبت به آنها داشته باشید. در این مورد توجه کنید که آنچه بیشتر مهم است، داشتن دید کلی نسبت به موارد مهم است و نه حفظ بودن تک به تک روابط و ضوابط. توجه کنید که هر چند محاسبات با نرم افزار انجام میشود ولی داشتن یک دید کلی به شما کمک میکند که نسبت به نتایج نرم افزار تفسیر مناسبی داشته باشید و بتوانید به سمت طراحی بهینه سازه که بحث مهمی برای یک طراح خوب است حرکت کنید. در مورد ضوابط آیین نامه ای مطالعه آیین نامه های روز مرتبط در حدی که کاربرد هر کدام از بندهای آیین نامه ای (حداقل آنهایی که کاربرد بیشتری در بازار کار دارد) لازم میباشد. در مورد نرم افزارها هم ، آشنایی کلی با نرم افزارهای پرکاربرد در بازار کار ضروری است. فراگیری نرم افزارها میتواند همزمان با انجام پروژه های واقعی (برای کارهای اول اکیداً زیر نظر یک مهندس طراح مجرب) و یا پروژه های آموزشی ( موارد موجود در بازار به صورت سی دی یا کتاب ) انجام گیرد. در حین آن مطالعه منوال نرم افزارها که موقع نصب در فولدر نصب نرم افزار قرار میگیرد هم بعضاً ضروری است. خصوصاً بهتر است که ضوابط اعمال شده در نرم افزار را مرور کرده و با موارد مورد نیاز طبق آیین نامه ها مقایسه کنید و کاستی های آنها را بررسی کنید. علاوه بر آشنایی کلی با موارد فوق لازم است که یک طراح فوق نسبت به نکات اجرایی هم دید کافی داشته باشد. مثلاً از قیمت انواع آهن آلات مطلع باشد یا به صورت حدودی در مورد آن اطلاعات داشته باشد. از محدودیتهای بازار برای برخی آهن آلات مطلع باشد. نسبت به محدودیتهای اجرایی ( مثل محدودیتهای کارهای جوشکاری، وصله اعضا ، محدودیتهای معماری و ...) مطلع باشد. این موارد معمولاً در کتابهای درسی یا مقالات و متون آموزشی موجود نیست و باید از افراد باتجربه تر آنها را آموخت یا با درگیر شدن در کارهای عملی با آنها آشنا شد. برای شروع بهتر است از شرکتهای مشاور و یا کار به عنوان زیردست و همکار یک مهندس باتجربه طراح شروع کنید واگر به این امر دسترسی ندارید میتوانید از طراحی به صورت تمرینی با کمک کتابها و سی دی های آموزشی شروع کنید. توجه کنید که هیچوقت به هیچکس چشم بسته اعتماد نکنید مواردی که از افراد باتجربه تر میشنوید را سعی کنید که با مراجعه به مراجع معتبر از صحت آنها در صورت امکان مطمئن شوید. لزوماً کسی که باتجربه تر است در همه چیز مطلعتر از شما نیست و ممکن است در برخی موارد ضعفهایی داشته باشد. به هر حال این فرآیند زمان بر است و بعضاً ممکن است چند سال برای آن زمان نیاز باشد.
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    Study of Intelligent Architecture Techniques along Energy Consumption Optimization with Solar Energy Approach Original Article, D84 Nikbakht H., MehdiNezhad M.R.., Allah GholiPour SM J. Civil Eng. Urban. 4(5): 554-561. 2014 ABSTRACT: Consciously design of the buildings and human residences especially dwelling, with due attention to energy problem can decrease to considerable extent dependence amount of them to energy consumption side heart and cold of structure. Used energy in building part base of statistics is allocated very high digitals to self which are generally no generator and consumed. By consumption more of 40% of total produced energy in country and cost spending equivalent 30 % of resulted revenue of oil sale, it is allocated the most amount of the energy consumption to self. Building pattern improvement and composing with environmental life views lead to consumed materials quality arising, structure methods, exploitation methods and salvage that moreover negative impacts decrease on life environment, new fields provide for innovation and employment in the building part. Buildings design to kind must perform that side use of energy optimum and fuel in the buildings acted various methods and has optimum use of energy together with. Architecture meantime correspondence to climatic condition and optimum use of energy by creating of reasonable relationship between man, nature and architecture in self-final evolution gives interesting patterns as life space. In this direction, exploitation of intelligent architecture principles can play important role. Intelligent architecture pays to two main principles. Principle 1: Attainment of possibilities maximum and capability by the least energy and materials. Principle 2: Consolidation principle and harmonize all possibilities in design and structure steps. Intelligent architecture acts all self-trying to design used possibilities all side and harmonic together till building acts such as harmonic and consolidated system. Other important problem is that try to man with nature and each other have closer relationship that to this manner, man psychic comfort condition give to very extents. Keywords: Sustainable Development, Smart Building, Design Purposefully منبع: [Hidden Content] دانلود: [Hidden Content].,%204%20(5)%20554-561,%202014.pdf J. Civil Eng. Urban., 4 (5) 554-561, 2014.pdf
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    Comparison of Average Strength Steel Moment Frame with a Thin Plate Steel Shear Wall and Diverging Braced Design Method Based on Performance Levels Original Article, D80 Chegeni V., Baradaran M.R. J. Civil Eng. Urban. 4(5): 534-539. 2014 ABSTRACT: In this paper a comparison was done between the coefficient of behaviour of steel moment frame systems with thin steel shear wall and diverging braced design method based on performance levels. 20 different frames was used for modelling and numerical analysis by SAP2000 software to calculating the capacity curve, coefficient of behaviour, energy dissipation and point of performance using the spectral capacity. For analysis, loading, determination of joints, levels of performance and etc. of frames, UBC, ATC-4, FEMA 356, Iranian 2800, Iran’s 519 code of practice was used. In general, it can be concluded from this modelling that shear wall systems have much higher energy absorbance capacity but lower ductility than the divergent braced systems in all short, medium, and long buildings. The studies conducted on spectral capacity diagrams shown that the steel shear walls had better performance than divergent braced walls. Keywords: Coefficient of behaviour, Thin plate steel shear walls, Divergent brace. منبع: [Hidden Content] دانلود: [Hidden Content].,%204%20(5)%20534-539,%202014.pdf J. Civil Eng. Urban., 4 (5) 534-539, 2014.pdf
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    Zoning of Flood Caused by Farrokhi Dam Breaking Of Qaen South Khorasan, Iran Original Article, D83 Rezaei M., Rezvani Mahmuee A., Khaksefidi S. J. Civil Eng. Urban. 4(5): 550-553. 2014 ABSTRACT: Due to the very high losses caused by breakage of dams, especially with regard to the dams that are constructed in the upstream of population centers, dam breakage of studies, including estimating fracture parameters, routing, and flood zoning caused by dam breaking for safety management at downstream dams, seem to be necessary. This is possible with the use of hydraulic models and GIS. In this study, using a dam breaking analysis for Farrokhi dam of Qaen located in South Khorasan, and use computer models HEC-RAS, GIS and Breach, flood zoning of the case is investigated. According to the results of failure analysis, flood routing, is performed downstream of dam above, and the result is entered in GIS, and flood zone is provided. Based on the results from rural areas of Farrokhi and Mahdiabad, downstream of the dam is exposed to the risk of dam break flood. Furthermore, it is suggested, using a risk matrix, areas at risk from flooding, to determine, by combining maps, speed, and depth of flooding, and determine the amount of risk in each area of high risk areas. Forecasting losses reduction system such as flood warning systems, anti-flood out buildings, editing recipes measures in emergencies, dams, public procurement procedures, to deal with emergencies, and perform periodic maneuvers to necessary to maintain readiness for dealing with crisis situations, the separation of risk areas is essential. Keywords: Dam Break, Flood Zoning, Farrokhi, HEC-RAS منبع: [Hidden Content] دانلود: [Hidden Content].,%204%20(5)%20550-553,%202014.pdf J. Civil Eng. Urban., 4 (5) 550-553, 2014.pdf
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    An Experimental Study on the Effect of Vortex Breakers on Discharge Coefficient for the Shaft Spillways with Sharp Edge and Wide Edge Original Article, D82 Nohani E. J. Civil Eng. Urban. 4(5): 546-549. 2014 ABSTRACT: Shaft spillways are used where there is not adequate space to build other types of spillways to convey flood water from reservoirs downslope dams because shaft spillways are placed on upslope dams and inside dam reservoirs. This spillway has three parts: crest, shaft and tunnel. Shaft can be built vertically. In the earth embankment dams it is better not to build on the body of dam. Here morning glory spillway is very useful. The major problem with these spillways is the strong spiral vortices in the inlet which will reduce the efficiency of tank discharge system. In this paper, the physical model was constructed and the effect of vortex breaker plate on the power of spiral vortex and the efficiency of flow system was studied. Once the data were analysed, the conclusion was that a 20% increase in spillway discharge coefficient was experienced via using blade-vortex breaker and the increase in spillway discharge coefficient with sharp edge was more than a wide-edged. Keywords: Vortex, Shaft Spillway, Vortex Breaker Plate, Hydraulic Model. منبع: [Hidden Content] دانلود: [Hidden Content].,%204%20(5)%20546-549,%202014.pdf J. Civil Eng. Urban., 4 (5) 546-549, 2014.pdf
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    The Impact of Niatak Lateral Spillway Performance on Process of Erosion and Sedimentation of Sistan River of Iran Original Article, D81 Motallebian M, Hassanpour F. J. Civil Eng. Urban. 4(5): 540-545. 2014 ABSTRACT: Sistan River Being located on the tail water of Helmand’s very extensive basin, it is prone to deposition of fine sediments, particularly in times of flood. The diversion structures on this river are Zahak and Sistan Dams. In this research the HEC-RAS model which has the ability to calculate the hydraulic parameters, is used to study of Niatakk spillway located in the upstream of Zahak dam. In this regard after the calibration model, the Erosion and Sedimentation process of the river during various conditions of utilization of the Zahak and Sistan dams was studied. The results show due to backwater by Zahak dam and giving the opportunity to the settling of suspended sediments, the rate of sedimentation between Niatak spillway and Zahak dam in situation of full utilization of Niatak spillway has become twice greater than situation which the gates are completely open. In situation of full utilization from Niatak spillway, the accumulated sediment in the interval between the Niatak spillway and Zahak dam is about 45% of the whole accumulated sediment and the accumulated sediments weight in this interval is about 20% of the whole accumulated sediment in situation which the gates are completely open. Keywords: Sistan River, Niatak Spillway, Erosion, Sedimentation, HEC-RAS model منبع: [Hidden Content] دانلود: [Hidden Content].,%204%20(5)%20540-545,%202014.pdf J. Civil Eng. Urban., 4 (5) 540-545, 2014.pdf
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    Evaluation of Nonlinear Static Analysis for Special Moment Resisting Frames Original Article, D79 Vahedian V. J. Civil Eng. Urban. 4(5): 529-533. 2014 ABSTRACT: In order to prevent extensive devastation and death toll in strong earthquakes, rehabilitation of existing structures was emphasized and after the publication of prestandards such as FEMA 274, ATC 40, FEMA 356, ATC 55, it was time for the code ASCE 41-06 to be published. In FEMA and ASCE 41, nonlinear static analysis method is considered a common approach to assess seismic behavior of structures. Considering widespread acceptance of this method (nonlinear static analysis) the question is put forward to what extent the results obtained from this approximate method are reliable. To answer this question, seven models of special steel moment resisting frames designed according to ASCE 7-05 and AISC 360- 05 and AISC 341-05 were analysed using nonlinear static and dynamic analyses based on FEMA 356 and ASCE 41-06 provisions. Comparing the results obtained from nonlinear static and dynamic analyses gives good results for low-rise buildings. In addition, it results in conservative estimates implying that this method should be considered more carefully when used for taller buildings. Key words: Nonlinear Static Method, Special Moment Resisting Frame, Seismic Rehabilitation, Performance-Based Design منبع : [Hidden Content] دانلود: [Hidden Content].,%204%20(5)%20529-533,%202014.pdf J. Civil Eng. Urban., 4 (5) 529-533, 2014.pdf
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    Structural Elements of Urban Squares from Tradition to Modernity in Iran: A Comparative Study of Isfahan’s Naghsh-e-Jahan Square and Tehran’s Toop-khaneh Square Original Article, D78 Khodabakhshi Z. J. Civil Eng. Urban. 4(5): 522-528. 2014 ABSTRACT: Modernism, as one of the main achievements of man, has been the source of various changes in the spatial structure of cities. Among the changes, city square, as the most significant structural representative of the city, is one of the changes originating from modernism. Using library resources, this study examined the change and development of structural elements of the square from tradition to modernism. It targeted the trend of structural changes of the square by comparing the two squares of Naghsh-e-Jahan and Toop-khaneh from beginning to the present time. The findings showed that with the appearance of modernism in Iran’s cities, structural elements of the traditional square were modified, and modern elements, which fulfil the modernist needs, replaced them and were made in the body of the square. The present study compared the two case squares. It is concluded that the continued growth of modernism lead to changes, not only in the structure of the modern urban square, but also in the essence of the square. In case in the design of urban squares enough consideration is granted for human criteria as well as restrictions in access to transportation vehicles, urban space of squares can be revitalized, and defects in modernist modifications of squares can be decreased. Keywords: Structural Elements, Square, Tradition, Modernism, Naghsh-e-Jahan, Toop-khaneh. منبع: [Hidden Content] دانلود: [Hidden Content].,%204%20(5)%20522-528,%202014.pdf J. Civil Eng. Urban., 4 (5) 522-528, 2014.pdf
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    Experimental Study on the Seismic Behavior of Retrofitted Concrete Infill Original Article, D77 Moghaddam H., Vahedian V. J. Civil Eng. Urban. 4(5): 515-521. 2014 ABSTRACT: Nowadays, Infill is widely used in retrofitting structures. Low sensitivity to construction quality is one of the advantages of concrete infill in comparison to other methods such as the application of steel braces. On the other hand, there are some weak points in this method mainly like sudden and brittle fracture in the corner which causes serious degradation. Due to such a weak point, concrete infill could not attract researchers so much and a limited number of studies were thus conducted on them. The experimental behavior of concrete infill with a scale of 1/2 was studied under cyclic and monotonic loading. This research includes three experiments: 1- compound frame consisted of steel frame and simple concrete infill, 2- a steel frame with concrete infill included confined corner 3- the third model encompasses second model accompanied with frictional sliding fuse (FSF). Results show that a Strengthened corner delays corner fracture to a great extent but the fracture still happens and causes much degradation. A frictional sliding fuse not only delays infill fracture to a great extent but also prevent degradation after failure of the corner. The used FSF also acts as a friction damper and increases the area of the hysteresis loops of the compound frames and consequently increases energy absorption. Key words: Concrete Infill, Frictional Sliding Fuse, Retrofitting, Strengthening منبع: [Hidden Content] دانلود: [Hidden Content].,%204%20(5)%20515-521,%202014.pdf J. Civil Eng. Urban., 4 (5) 515-521, 2014.pdf
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    The Hydraulic Investigation of Perforated-Cylindrical-Intake Structure Original Article, D76 Fendereski R, Masoudian M, Kordi E, Röttcher K, Gharahgezlu M. J. Civil Eng. Urban. 4(5): 509-514. 2014 ABSTRACT: Water surface level regulation and deviation of a constant value of discharge into the side channel, is the basis of the intake systems in irrigation channels, considering the main discharge rate fluctuates during the seasons. Hence, the necessity to design a structure which can control the consequences of discharge fluctuation in main channel and divert the constant value of demand water flow is more recognizable. The perforated-cylindrical-intake instrument is a new model of regulator-intake function, includes a free overflow on a cylindrical weir associated with intake element that can fulfil the main objective of a regulator and an intake devices, simultaneously. This research firstly, examined the different geometric conditions of the structure and determined the best one, then, tried to investigate the hydraulic function, operation method and the correlation of the intake discharge and upstream flow depth versus the discharge of the main channel in various condition of the structure based on an experimental work. The results show that in wide range of discharge variation in the main channel, the intake discharge variation were not considerable, also, it would be possible to measure and control the intake discharge precisely, installing a counter and a valve at the side channel. Key words: Cylindrical weir-gate; Over-under flow; Intake; Orifice. منبع: [Hidden Content] دانلود: [Hidden Content].,%204%20(5)%20509-514,%202014.pdf J. Civil Eng. Urban., 4 (5) 509-514, 2014.pdf
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    3-D Underflow of a Sluice Gate at a Channel Inlet; Experimental Results and CFD Simulations Original Article, D75 Calomino F. and Lauria A. J. Civil Eng. Urban. 4(5): 501-508. 2014 ABSTRACT: The underflow of a sluice gate is well known when the gate is set into a channel of the same width (2-D underflow), while no studies are found in the literature when the gate is flush with the wall of the tank or reservoir upstream to the channel (3-D underflow). Experimental and numerical investigations were carried out to study the flow in this case, in a small range of relative openings, considering three wall slopes, and obtaining an equation for the discharge coefficient. Afterwards, numerical simulations were performed by means of a CFD (Computational Fluid Dynamics) model, following the RANS approach and based on a finite-volume computational code. Comparison of experimental and numerical results showed that the simulations predict accurately the flow behaviour; thereafter discharge coefficients in a more extended range of relative openings were computed for use in the practice. Keywords: Channel Inlet, Sluice Gate, 3-D Underflow, Discharge Coefficients, CFD Simulations. منبع: [Hidden Content] دانلود: [Hidden Content].,%204%20(5)%20501-508,%202014.pdf J. Civil Eng. Urban., 4 (5) 501-508, 2014.pdf
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    Long Term Dry and Wet Effects on the Engineering Behavior of Subgrade Soil with High Amount of Soluble Salts using Low Cost Stabilizers Original Article, D74 Ibrahim S.F., Ibrahim M.S., Abd hak H. J. Civil Eng. Urban. 4(5): 492-500. 2014 ABSTRACT: The performance of pavements depends upon the quality of subgrades. A stable subgrade and properly draining pavement help to produce a long-lasting pavement. Subgrade soil provides support to the remainder of the pavement system. This study is performed to evaluate the effect of total soluble salts (T.S.S.) on the strength of subgrade soil brought from Al-Mahmodia city south of Baghdad. Chemical and physical test, carried out on the soil sample, indicate that, the soil is lean clay of (CL) group according to the Unified Soil Classification System (U.S.C.S.). The soil sample contains about (15.685%) by weight of (T.S.S.) content. Different stabilizers are added to the subgrade soil to study the influence of these stabilizers on (T.S.S.) and the strength of subgrade, the stabilizers are (5% lime, 2.5% calcium chloride, 6% kaolin, 6% Rice Husk Ash and 5% saw dust). California Bearing Ratio (CBR) test is determined for the natural soil and different stabilizers with different number of blow per layer (10, 25 and 56) for (4-days) soaking periods under (10 Ibs.) surcharge load. The number of blow per layer and (CBR) value, required to achieve (95%) relative modified proctor compaction are determined from the results of different number of blow (10, 25 and 56) and soaked for (4-days). The (CBR) value of the natural soil at 95% relative modified proctor increases by about (48%, 66.1%, 36.1% and 38%) for the (2.5% CaCl2, 5% lime, 6% RHA, 6% kaolin) respectively. While the CBR value of soil with the (5% saw dust) decreases to (29%). The (T.S.S) is reduced after the addition of the different stabilizers. Durability test (long term soaking) for the subgrade stabilized with (6% RHA) and compacted at 95% relative modified proctor is conducted, the results of soaking showed reduction in both (CBR) value and (T.S.S) with the time. Keywords: Strength, Rice husk ash, Total soluble salts, Durability, Calcium chloride منبع: [Hidden Content] دانلود: [Hidden Content].,%204%20(5)%20492-500,%202014.pdf J. Civil Eng. Urban., 4 (5) 492-500, 2014.pdf
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    Hysteretic Analysis of Steel Plate Shear Walls (SPSWs) and A Modified Strip Model for SPSWs Lanhui Guo1,*, Ran Li1,2, Sumei Zhang1 and Guirong Yan3 1School of Civil Engineering, Harbin Institute of Technology, Harbin 150090, China 2China Academy of Building Research, Beijing 100013, China 3School of Engineering, University of Western Sydney, Penrith, NSW 1797, Australia (Received: 7 April 2010; Received revised form: 14 February 2012; Accepted: 16 February 2012) Abstract: Steel plate shear walls (SPSWs) have become more and more popular in recent years because of their potential huge energy dissipation capacity and ductility under lateral loads. Due to their low cost and fast construction, SPSWs have potential application in practice. The finite element software ANSYS applied to the analysis of the hysteretic behavior of SPSWs is described in this paper first. It was found that compressive stress existed in SPSWs and the effects became more evident with decreasing height-to-thickness ratio. This was validated by comparing theoretical and experimental test results. Secondly, based on the analytical results, a modified strip model is proposed. In the modified model, the compressive effects in the panel were taken into account and it was then found that the load-carrying capacity and the energy dissipation capacity agreed well with the already carefully validated experimental results. Key words: finite element (FE), steel plate shear wall (SPSW), hysteretic behavior, strip model, energy dissipation capacity. 1369-4332.15.10.1751.pdf
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    UNSTIFFENED STEEL PLATE SHEAR WALL PERFORMANCE UNDER CYCLIC LOADING By Adam S. Lubell,1 Helmut G. L. Prion,2 Carlos E. Ventura,3 Member, ASCE, and Mahmoud Rezai4 ABSTRACT: In the last few decades, steel plate shear walls have been introduced as primary lateral load resisting elements in several buildings around the world. This paper presents research from a study on the performance of unstiffened thin steel plate shear walls for medium- and high-rise buildings. In this concept, the postbuckling strength of the panels is relied upon for most of the frame shear resistance, similar to the slender web of a plate girder. Experimental testing was conducted on two single- and one four-story steel shear wall specimens, under cyclic quasi-static loading. Each specimen consisted of a single bay with column-to-column and floor-to-floor dimensions of 900 mm, representing a quarter-scale model of a typical office building core. Identification of load-deformation characteristics and the stresses induced in the structural components were the primary objectives of the testing program. Good energy dissipation and displacement ductility capacities were achieved. Primary inelastic damage modes included yielding of the infill plates combined with column yielding in the single-panel tests and yielding of the columns for the multistory frame. The experimental results were compared with simplified tension field analytical models, based on recommendations in the Canadian code for limit-states design of steel structures. The models, in general, provided good predictions of the postyield strength of the specimens, with less satisfactory results for elastic stiffness calculations. From the experimental and analytical results, the adequacy of existing design guidelines were assessed. ASCE_2998_0733-9445%282000%29126%3A4%28453%29.pdf
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    یک جزوه فارسی در 122 صفحه برای آموزش متره ، برآورد و آنالیز بها بر اساس آخرین دستورالعملهای معاونت برنامه ریزی و نظارت راهبری ریاست جمهوری تهیه شده توسط مهندس علیرضا سعادتمند عضو هیات مدرسین شهرداری تهران منبع: [Hidden Content] دانلود: [Hidden Content] metre_saadatmand_mycivil.ir.rar

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