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Self-centering steel plate shear walls for improving seismic resilience

Frontiers of Structural and Civil Engineering 2016年第3期10卷 283-290页

作者： Patricia M. CLAYTON Daniel M. DOWDEN Chao-Hsien LI Jeffrey W. BERMAN Michel BRUNEAU Laura N. LOWES Keh-Chuan TSAI Department of Civil Architectural and Environmental Engineering University of Texas at Austin Austin TX 78705 USA Department of Civil Structural and Environmental Engineering University at Buffalo New York 14260-1660 USA National Center for Research on Earthquake Engineering Taipei Taiwan China Department of Civil and Environmental Engineering University of Washington Seattle WA 98195-2700 USA Department of Civil Structural and Environmental Engineering Taiwan University Taipei Taiwan China

As part of a Network for Earthquake Engineering Simulation research project led by researchers at the University of Washington with collaborators at University at Buffalo, and Taiwan National Center for Research on Earthquake Engineering, a self-centering steel plate shear wall （SC-SPSW） system has been developed to achieve enhanced seismic performance objectives, including recentering. The SC-SPSW consists of thin steel infill panels, referred to as web plates that serve as the primary lateral load-resisting and energy dissipating element of the system. Post- tensioned （PT） beam-to-column connections provide system recentering capabilities. A performance-based design procedure has been developed for the SC-SPSW, and a series of nonlinear response history analyses have been conducted to verify intended seismic performance at multiple hazard levels. Quasi-static subassembly tests, quasi-static and shake table tests of scaled three-story specimens, and pseudo-dynamic tests of two full-scale two-story SC-SPSWs have been conducted. As a culmination of this multi-year, multi-institutional project, this paper will present an overview of the SC- SPSW numerical and experimental research programs. This paper will also discuss innovative PT connection and web plate designs that were investigated to improve constructability, resilience, and seismic performance and that can be applied to other self-centering and steel plate shear wall systems.

关键词： self-centering steel plate shear walls large-scale experiment post-tensioned connections performance-baseddesign

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Pressure relief of underground ammunition storage under missile accidental ignition

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Defence Technology（防务技术） 2021年第3期17卷 1081-1093页

作者： Ya-wei Wang Yu-zhuo Yang Gao-wan Zou Hui Dong Yan Huo College of Aerospace and Civil Engineering Harbin Engineering UniversityHarbinHeilongjiangChina Architecture and Civil Engineering Department City University of Hong KongHong KongChina

Safety of underground ammunition storage is an important issue,especially during the accidental ignition of *** work investigates the pressure and temperature distribution of the multi-layer underground ammunition storage with a pressure relief duct during the accidental ignition process of the missile.A large-scale experiment was carried out using a multi-layered restricted space with a pressure relief duct to simulate the underground ammunition store and a solid rocket motor to simulate the accidental ignition of the *** results show that when the motor gas mass flow increased by5.6 times,the maximum pressure of the ammunition storage increased by 5.87 *** a certain motor flow rate,when the pressure relief exhaust area at the end of the relief duct was reduced by 1/2,the maximum pressure on the first layer did not *** the rate of pressure relief was reduced and the time delayed for the pressure of ammunition store to drop to *** this experiment,when the motor ignition position was located in to the third layer ammunition chamber,the maximum pressure was reduced by 32.9%and also reduced the rate of change of *** addition,for the experimental conditions,the theoretical analysis of the pressure relief of the ammunition storage is given by a simplified *** on the findings,some suggestions to the safety protection design of ammunition store are proposed.

关键词： Underground ammunition storage Pressure relief large-scale experiment Missile accidental ignition

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