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Effect of Corrosion on Pushover Performance of a Steel Plate Shear Wall Parham Memarzadeh, Raheleh Memarzadeh, Mortaza Davari Dolatabadi Abstract— In some areas with the probability of chemical attacks such as near the sea or oil refinery, steel plate shear walls (SPSWs) may be affected by corrosion and after a while gets loss of efficiency. In present study, the effect of web plate corrosion on pushover behavior of a single SPSW is investigated. For this purpose, experimental tests were conducted on SPSW specimen whose web plate corroded according to ASTM B117 and also on uncorroded specimen for comparison. The specimens were subjected to pushover loading and performances of the SPSWs were evaluated. The results show that the corrosion has a significant effect on the behavior of the SPSWs such as initial stiffness and shear capacity.  Keywords— Corrosion, steel plate, shear wall, pushover PaperC_2365.pdf

NONLINEAR DYNAMIC RESPONSE AND DUCTILITY REQUIREMENTS OF A TYPICAL STEEL PLATE SHEAR WALL SUBJECTED TO EL CENTRO EARTHQUAKE* P. MEMARZADEH, M. M. SAADATPOUR AND M. AZHARI** Dept. of Civil Engineering, Isfahan University of Technology, Isfahan 8415683111, I. R. of Iran Email: mojtaba@cc.iut.ac.ir Abstract– In the present research, an explicit dynamic analysis is conducted on a typical multistorey Steel Plate Shear Wall (SPSW) designed according to AISC requirements. The SPSW model is subjected to a base earthquake acceleration record to simulate the time history response of the structure. The analysis utilizes a finite element method involving both material and geometric nonlinearities. The energy dissipation behavior and distribution of storey shear over height of the model are investigated through time history response of the system. In addition, this paper proposes a new definition of energy ductility, which can be used in the investigation of the dynamic response of SPSWs. The ductility demand based on the proposed definition as well as shear resistance contribution of the web plate and Vertical Boundary Elements (VBE) of SPSW are evaluated. Keywords– Shear wall, steel plate, dynamic response, transient, energy dissipation, energy ductility دانلود: [Hidden Content] منبع: [Hidden Content] PaperM_2031.pdf

DUCTILITY BEHAVIOR OF A STEEL PLATE SHEAR WALL BY EXPLICIT DYNAMIC ANALYZING P. Memarzadeh Faculty of Civil Engineering, Islamic Azad University, Najafabad Branch, Iran Email: p-memar@iaun.ac.ir, parham_memarzadeh@yahoo.com The 14 th World Conference on Earthquake Engineering October 12-17, 2008, Beijing, China ABSTRACT : AISC-341 provides requirements for designing of SPSWs by means of a capacity-design method in which boundary elements are designed for forces corresponding to the fully yield strength of the web plate. In present research, an explicit dynamic analysis is conducted to a typical multi-storey SPSW designed according to AISC requirements. The SPSW model is subjected to a base earthquake acceleration record to simulate the time history response of the structure. The analysis utilizes a finite element method involving both material and geometric nonlinearities. The energy dissipation and ductility behavior of the structure are investigated through time history response of the system. KEYWORDS: Steel Plate, Shear Wall, Transient, Ductility, Energy Dissipation PaperC_5125.pdf