Author
Zhong-Xian Li
Other affiliations: Chinese Ministry of Education, China Earthquake Administration, Tianjin Urban Construction Institute
Bio: Zhong-Xian Li is an academic researcher from Tianjin University. The author has contributed to research in topics: Shear wall & Steel plate shear wall. The author has an hindex of 22, co-authored 106 publications receiving 1783 citations. Previous affiliations of Zhong-Xian Li include Chinese Ministry of Education & China Earthquake Administration.
Papers
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TL;DR: In this paper, a field investigation was carried out in the strongly affected areas and over 320 bridges were examined, and the most common damage included shear-flexural failure of the pier columns, expansion joint failure, shear key failure, and girder sliding in the transversal or longitudinal directions.
Abstract: Many highway bridges were severely damaged or completely collapsed during the 2008 Wenchuan earthquake. A field investigation was carried out in the strongly affected areas and over 320 bridges were examined. Damage to some representative highway bridges is briefly described and a preliminary analysis of the probable causes of the damage is presented in this paper. The most common damage included shear-flexural failure of the pier columns, expansion joint failure, shear key failure, and girder sliding in the transversal or longitudinal directions due to weak connections between girder and bearings. Lessons learned from this earthquake are described and recommendations related to the design of curved and skewed bridges, design of bearings and devices to prevent girder collapse, and ductility of bridge piers are presented. Suggestions for future seismic design and retrofitting techniques for bridges in moderate to severe earthquake areas are also proposed.
222 citations
TL;DR: In this article, a new method for progressive collapse analysis of reinforced concrete (RC) frame structures by considering non-zero initial conditions and initial damage to adjacent structural members under blast loading is proposed.
178 citations
TL;DR: In this paper, the dynamic strength, Young's modulus and energy absorption capacities of two expanded polystyrene (EPS) foams at different strain rates are obtained and some empirical relations are derived.
170 citations
161 citations
TL;DR: In this article, a pre-pressed spring self-centering energy dissipation (PS-SCED) bracing system was proposed to provide a self-centered capability and additional energy dissipation.
113 citations
Cited by
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TL;DR: In this paper, a comparative study among different vibration-based damage detection methods: fundamental modal examination, local diagnostic method, non-probabilistic methodology and the time series method was made.
Abstract: Structural health monitoring (SHM) techniques have been studied for several years. An effective approach for SHM is to choose the parameters that are sensitive to the damage occurring in the structure but not sensitive to operational or environmental damages. This paper deals with a comparative study among the different vibration-based damage detection methods: fundamental modal examination, local diagnostic method, non-probabilistic methodology and the time series method. All these strategies contemplate different parameters of a structure to recognize damage. Out of the study made, time series analysis proves to more successfully in damage identification than the rest of the methods.
271 citations
TL;DR: In this paper, the authors present an ambitious review that describes all the main advances that have taken place since the beginning of the 21st century in the field of progressive collapse and robustness of buildings.
257 citations
TL;DR: In this article, a performance-based seismic design (PBSD) method was proposed for steel braced frames with novel self-centering (SC) braces that utilize shape memory alloys (SMA) as a kernel component.
206 citations
TL;DR: The progress in the area of vibration-based damage identification methods over the past 10 years is reviewed to help researchers and practitioners in implementing existing damage detection algorithms effectively and developing more reliable and practical methods for civil engineering structures in the future.
200 citations
TL;DR: In this paper, the authors carried out numerical simulations of a reinforced concrete wall under different blast loadings, and compared the responses of RC wall obtained from numerical models with different DIF relations of concrete material.
164 citations