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The theory and practice of PERFORMANCE-BASED DESIGN - Ashraf Habibullah فایل با فرمت پاورپوینت منبع @Civilbest, ASHRAF PBD SEMINAR.ppsx

Performance-based Design Modeling for Nonlinear Analysis طراحی بر مبنای عملکرد فایل پی دی اف در 109 اسلاید به زبان اصلی دکتر نوید انوار Performance_based_Design_Modeling.pdf

لینک مستقیم دانلود سمینار طراحی عملکردی سازه ها این سمینار در تاریخ ۷ آگوست ۲۰۱۴ در بانکوک و با سخنرانی اشرف حبیب الله مدیر شرکت CSI برگزار شده است.این فایل همراه با فایل ویدئویی به مدت حدود 42 دقیقه و همچنین فایل پاورپوینت سمینار می باشد. لینک منبع [Hidden Content] رمز عبور www.asreomran.ir

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

A Performance-Based Design Approach for Coupled Core Wall Systems with Diagonally Reinforced Concrete Coupling Beams Gang Xuan1, Bahram M. Shahrooz2,*, Kent A. Harries3 and Gian A. Rassati2 1Christie Engineering LLC, Bedminster, New Jersey, USA 2University of Cincinnati, Ohio, USA 3University of Pittsburgh, Pennsylvania, USA (Received: 16 October 2007; Received revised form: 18 March 2008; Accepted: 20 March 2008) Abstract: Coupled core wall systems (CCWs) are lateral force resisting systems that can provide remarkable lateral stiffness for mid- to high-rise buildings, exceeding the lateral stiffness of isolated walls while providing the redundancy and force redistribution capabilities of framed systems. The lateral stiffness provided by CCWs largely depends on the type of coupling beams used to transfer forces between wall piers. Diagonally-reinforced concrete coupling beams are one of the more common details although composite alternatives (e.g., those using structural steel W-shapes, hollow structural steel sections, or embedded steel plates) or beams with rhombic reinforcement are increasingly being selected as viable alternatives. Despite the favorable behavior exhibited by diagonally-reinforced coupling beams in experimental studies, designing and constructing diagonally-reinforced coupling beams having practical span-to-depth ratios presents significant difficulties, impacting the use of CCWs as a viable lateral force resisting system. This paper presents a performancebased design (PBD) approach that allows the designer to successfully proportion a code-compliant CCW system that addresses the shortcomings related to the traditional strength-based design approach. A prototype building is designed following both approaches, and is analyzed both statically and dynamically. Results show that the PBD approach produces a code-compliant structure that satisfies the most pressing constructability constraints. 136943308785082580.pdf