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| 1 | Collapse simulation of a super high-rise building subjected to extremely strong earthquakes显示文摘In recent years, super high-rise buildings (>500 m) are developing very quickly and become an important frontier of civil engineering. The collapse resistance of super high-rise buildings subjected to extremely strong earthquake is a critical problem that must be intensively studied. This paper builds up a nonlinear finite element model of the tallest building in China, Shang- hai Tower (632 m), and proposes the modeling method and failure criteria for different structural elements. The dynamic char- acters of this building are then analyzed, and the possible failure modes and collapse processes due to earthquakes are pre- dicted, as well as the corresponding collapse mechanism. This work will be helpful in collapse prevention and the seismic design of super high-rise buildings. | LU Xiao LU XinZheng ZHANG WanKai YE LiePing | 2011 | Science China(Technological Sciences)2011，54，10： | 49 |
| 2 | An improved ground motion intensity measure for super high-rise buildings显示文摘Ground motion intensity measure (IM) is an important part in performance-based seismic design. A reasonable and efficient IM can make the prediction of the structural seismic responses more accurate. Therefore, a more reasonable IM for super high-rise buildings is proposed in this paper. This IM takes into account the significant characteristic that higher-order vibration modes play important roles in the seismic response of super high-rise buildings, as well as the advantages of some existing IMs. The key parameter of the proposed IM is calibrated using a series of time-history analyses. The collapse simulations of two super high-rise buildings are used to discuss the suitability of the proposed IM and some other existing IMs. The results indicate that the proposed IM yields a smaller coefficient of variation for the critical collapse status than other existing IMs and performs well in reflecting the contribution of higher-order vibration modes to the structural response. Hence, the proposed IM is more applicable to seismic design for super high-rise buildings than other IMs. | LU Xiao YE LiePing LU XinZheng LI MengKe MA XiaoWei | 2013 | Science China(Technological Sciences)2013，56，6： | 9 |
| 3 | Evaluation of collapse resistance of RC frame structures for Chinese schools in seismic design categories B and C显示文摘According to the Code for Seismic Design of Buildings (GB50011-2001), ten typical reinforced concrete (RC) frame structures, used as school classroom buildings, are designed with different seismic fortification intensities (SFIs) (SFI=6 to 8.5) and different seismic design categories (SDCs) (SDC=B and C). The collapse resistance of the frames with SDC=B and C in terms of collapse fragility curves are quantitatively evaluated and compared via incremental dynamic analysis (IDA). The results show that the collapse resistance of structures should be evaluated based on both the absolute seismic resistance and the corresponding design seismic intensity. For the frames with SFI from 6 to 7.5, because they have relatively low absolute seismic resistance, their collapse resistance is insufficient even when their corresponding SDCs are upgraded from B to C. Thus, further measures are needed to enhance these structures, and some suggestions are proposed. | Tang Baoxin Lu Xinzheng Ye Lieping Shi Wei | 2011 | Earthquake Engineering and Engineering Vibration2011，10，3： | 8 |
| 4 | Uniform-risk-targeted seismic design for collapse safety of building structures显示文摘Seismic design should quantitatively evaluate and control the risk of earthquake-induced collapse that a building structure may experience during its design service life.This requires taking into consideration both the collapse resistant capacity of the building and the earthquake ground motion demand.The fundamental concept of uniform-risk-targeted seismic design and its relevant assessment process are presented in this paper.The risks of earthquake-induced collapse for buildings located in three seismic regions with the same prescribed seismic fortification intensity but different actual seismic hazards are analyzed to illustrate the engineering significance of uniform-risk-targeted seismic design.The results show that with China's current seismic design method,the risk of earthquake-induced collapse of buildings varies greatly from site to site.Additional research is needed to further develop and implement the uniform-risk-targeted seismic design approach proposed in this paper. | SHI Wei LU XinZheng YE LiePing | 2012 | Science China(Technological Sciences)2012，55，6： | 5 |
| 5 | Collapse simulation of reinforced concrete high‐rise building induced by extreme earthquakes显示文摘 | Xiao Lu Xinzheng Lu Hong Guan Lieping Ye | 2012 | Earthquake Engng Struct Dyn2012，，5： | 5 |
| 6 | Influence of soil——structure interaction on seismic collapse resistance of super-tall buildings显示文摘Numerous field tests indicate that the soilestructure interaction(SSI) has a significant impact on the dynamic characteristics of super-tall buildings,which may lead to unexpected structural seismic responses and/or failure.Taking the Shanghai Tower with a total height of 632 m as the research object,the substructure approach is used to simulate the SSI effect on the seismic responses of Shanghai Tower.The refined finite element(FE) model of the superstructure of Shanghai Tower and the simplified analytical model of the foundation and adjacent soil are established.Subsequently,the collapse process of Shanghai Tower taking into account the SSI is predicted,as well as its final collapse mechanism.The influences of the SSI on the collapse resistance capacity and failure sequences are discussed.The results indicate that,when considering the SSI,the fundamental period of Shanghai Tower has been extended significantly,and the collapse margin ratio has been improved,with a corresponding decrease of the seismic demand.In addition,the SSI has some impact on the failure sequences of Shanghai Tower subjected to extreme earthquakes,but a negligible impact on the final failure modes. | Mengke Li Xiao Lu Xinzheng Lu Lieping Ye | 2014 | Journal of Rock Mechanics and Geotechnical Engineering2014，6，5： | 4 |
| 7 | A preliminary analysis and discussion of the condominium building collapse in surfside,Florida,US,June 24,2021显示文摘On June 24,2021,a 40-year-old reinforced concrete flat plate structure building in Miami suffered a sudden partial collapse.This study analyzed the overall performance and key components of the collapsed building based on the building design codes(ACI-318 and GB 50010).Punching shear and post-punching performances of typical slabcolumn joints are also studied through the refined finite element analysis.The collapse process was simulated and visualized using a physics engine.By way of these analyses,weak design points of the collapsed building are highlighted.The differences between the reinforcement detailing of the collapsed building and the requirements of the current Chinese code are discussed,together with a comparison of the punching shear and post-punching performances.The simulated collapse procedure and debris distribution are compared with the actual collapse scenes. | Xinzheng LU Hong GUAN Hailin SUN Yi LI Zhe ZHENG Yifan FEI Zhi YANG Lingxiao ZUO | 2021 | Frontiers of Structural and Civil Engineering2021，15，5： | 4 |
| 8 | Regional seismic-damage prediction of buildings under mainshock-aftershock sequence显示文摘Strong aftershocks generally occur following a significant earthquake.Aftershocks further damage buildings weakened by mainshocks.Thus,the accurate and efficient prediction of aftershock-induced damage to buildings on a regional scale is crucial for decision making for post-earthquake rescue and emergency response.A framework to predict regional seismic damage of buildings under a mainshock-aftershock(MS-AS)sequence is proposed in this study based on city-scale nonlinear time-history analysis(THA).Specifically,an MS-AS sequence-generation method is proposed to generate a potential MS-AS sequence that can account for the amplification,spectrum,duration,magnitude,and site condition of a target area.Moreover,city-scale nonlinear THA is adopted to predict building seismic damage subjected to MS-AS sequences.The accuracy and reliability of city-scale nonlinear THA for an MS-AS sequence are validated by as-recorded seismic responses of buildings and simulation results in published literature.The town of Longtoushan,which was damaged during the Ludian earthquake,is used as a case study to illustrate the detailed procedure and advantages of the proposed framework.The primary conclusions are as follows.(1)Regional seismic damage of buildings under an MS-AS sequence can be predicted reasonably and accurately by city-scale nonlinear THA.(2)An MS-AS sequence can be generated reasonably by the proposed MS-AS sequencegeneration method.(3)Regional seismic damage of buildings under different MS-AS scenarios can be provided efficiently by the proposed framework,which in turn can provide a useful reference for earthquake emergency response and scientific decision making for earthquake disaster relief. | Xinzheng LU Qingle CHENG Zhen XU Chen XIONG | 2021 | Frontiers of Engineering Management2021，8，1： | 3 |
| 9 | On the satisfiability of authorization requirements in business process显示文摘 | Yang BO Chunhe XIA Zhigang ZHANG Xinzheng LU | 2017 | Frontiers of Computer Science2017，11，3： | 2 |
| 10 | Evaluation of Modal and Traditional Pushover Analyses in Frame-Shear-Wall Structures显示文摘 | Zhiwei Miao Lieping Ye Hong Guan Xinzheng Lu | 2011 | Advances in Structural Engineering2011，，5： | 2 |
| 11 | Earthquake-induced collapse simulation of a super-tall megabraced frame-core tube building 显示文摘 | Lu Xinzheng Lu Xiao Guan Hong | 2013 | Journal of Construction Steel Research2013，82，6： | 1 |
| 12 | Development and Application of a High-Performance Triangular Shell Element and an Explicit Algorithm in OpenSees for Strongly Nonlinear Analysis显示文摘The open-source finite element software,OpenSees,is widely used in the earthquake engineering community.However,the shell elements and explicit algorithm in OpenSees still require further improvements.Therefore,in this work,a triangular shell element,NLDKGT,and an explicit algorithm are proposed and implemented in OpenSees.Specifically,based on the generalized conforming theory and the updated Lagrangian formulation,the proposed NLDKGT element is suitable for problems with complicated boundary conditions and strong nonlinearity.The accuracy and reliability of the NLDKGT element are validated through typical cases.Furthermore,by adopting the leapfrog integration method,an explicit algorithm in OpenSees and a modal damping model are developed.Finally,the stability and efficiency of the proposed shell element and explicit algorithm are validated through the nonlinear time-history analysis of a highrise building. | Xinzheng Lu Yuan Tian Chujin Sun Shuhao Zhang | 2019 | Computer Modeling in Engineering & Sciences2019，，9： | 1 |
| 13 | Study onprogressive-collapse resistance capacity of RC framestructures based on pushdown anaiysis显示文摘 | Li Yi Lu Xinzheng Ye Lieping | 2011 | Journal ofShenyang Jianzhu University:Natural Science2011，27，1： | 1 |
| 14 | Application of computer simulation technology for structure analysis in disaster显示文摘 | Lu Xinzheng Yang Ning Jiang Jianjing | 2004 | Automation in Construction2004，13，5： | 1 |
| 15 | Collapse simulation of reinforced concrete high‐rise building induced by extreme earthquakes显示文摘 | Xiao Lu Xinzheng Lu Hong Guan Lieping Ye | 2012 | Earthquake Engng Struct. Dyn2012，，5： | 1 |
| 16 | An improved tie force method for progressive collapse resistance design of reinforced concrete frame structures显示文摘 | Yi Li Xinzheng Lu Hong Guan Lieping Ye | 2011 | Engineering Structures2011，，10： | 1 |
| 17 | Bond-slip mod- els for FRP sheets/plates externally bonded to concrete 显示文摘 | Lu Xinzheng Teng Jinguang Ye Lieping | 2005 | Engineering Structures2005，27，6： | 1 |
| 18 | An improved tie force method for progressive collapse resistance design of reinforced concrete frame structures显示文摘 | Yi Li Xinzheng Lu Hong Guan Lieping Ye | 2011 | Engineering Structures2011，，10： | 1 |
| 19 | Bond-slip models for FRP sheets/plates externally bonded to concrete显示文摘 | Lu Xinzheng Teng Jinguang Ye Lieping | 2005 | Engineering Structures2005，27，6： | 1 |
| 20 | A coarse-grained parallel approach for seismic damage simulations of urban areas based on refined models and GPU/CPU cooperative computing显示文摘 | Lu Xinzheng Han Bo Hori Muneo | 2014 | Advances in Engineering Software2014，70，： | 1 |
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