A new staggered
isolated system developed from the mid-story isolated system is the new
staggered story isolated system. There are not many studies on this structure
currently. In this study, an 18-story new staggered story isolated system model
is established using SAP2000. The dynamic nonlinear dynamic alternate method is
used to analyze the structure against progressive collapse. Results show that
the structure has good resistance to progressive collapse, and there is no
progressive collapse under each working condition. The progressive collapse
does not occur for the case of removing only one vertical structural member of
the new staggered of isolated system. The side column has big influence on this
isolated structures’ progressive collapse; the removal of vertical structural
member of the isolation layer has less impact on the structure than the removal
of the bottom vertical structural member. After the removing of the member, the
internal force of the structure will be redistributed,
and the axial force of the adjacent columns will change obviously,
showing a trend of “near large and far small”.
References
[1]
Zhang, H., Li, F., Tai, J., et al. (2021) Research on Structural Design of an Isolated High-Rise Building with Enlarged Base and Multiple Tower Story in High-Intensity Area. Mathematical Problems in Engineering, 2021, Article ID: 6669388. https://doi.org/10.1155/2021/6669388
[2]
Bu Longgui, Wu Zhongqun, Shu Weinong, et al. (2018) Study on Cross-Layer Isolation Design on T2 Terminal of Haikou Meilan International Airport. Building Structure, 48, 79-82.
[3]
Shu, W., Zhu, Z., Bu, L., et al. (2019) Research and Application of Seismic Isolation Design of Airport Terminal Structure. Building Structure, 49, 5-12.
[4]
Zhang, Y., Liu, D., Fang, S., et al. (2018) Study on Seismic Response of Super High-Rise Staggered Story Isolation System. Journal of Building Structures, 48, 79-82.
[5]
Liu, D., Li, L., Zhang, Y., et al. (2022) Study on Seismic Response of a New Staggered Story Isolated Structure Considering SSI Effect. Journal of Civil Engineering and Management, 28, 397-407. https://doi.org/10.3846/jcem.2022.16825
[6]
Zhang, Y., Liu, D., Fang, S., et al. (2022) Study on Shock Absorption Performance and Damage of a New Staggered Story Isolated System. Advances in Structural Engineering, 25, 1136-1147. https://doi.org/10.1177/13694332211056113
[7]
Code for the Design of Collapse Resistance of Building Structures: T/CECS 392: 2021. China Planning Press, Beijing.
[8]
Pearson, C. and Delatte, N. (2005) Ronan Point Apartment Tower Collapse and Its Effect on Building Codes. Journal of Performance of Constructed Facilities, 19, 172-177. https://doi.org/10.1061/(ASCE)0887-3828(2005)19:2(172)
[9]
Smilowitz, R. and Tennant, D. (2001) Multi-Hazard Design to Resist Progressive Collapse. Structures, 109, 74. https://doi.org/10.1061/40558(2001)74
[10]
Zhu, M. and Liu, X. (1994) Analysis of Progressive Collapse of Multi-Story Brick and Concrete Buildings. Sichuan Building Science Research, No. 2, 2-5+28.
[11]
Yi, W., He, Q. and Xiao, Y. (2007) Collapse Performance of RC Frame Structure. Journal of Building Structures, No. 5, 104-109+117.
[12]
Du, Y., Zhu, X., Lu, X., et al. (2016) Analysis on Progressive Collapse Resistance of Long Complicated Isolated Structures. Journal of Building Structures, 49, 90-95.
[13]
Du, Y. and Zeng, X. (2019) Simulation of Uninterrupted Collapse Isolated Structure under Blast Load in Basement. Journal of Lanzhou University of Technology, 45, 113-120.
[14]
Zhang, Y.J., Wang, C. and Du, K. (2022) Numerical Study on the Vertical Collapse Capacity of Spatial Beam-Slab Structures with Unequal Spans. Engineering Mechanics, 39, 139-150.
[15]
Yu, X., Qian, K. and Lv, D. (2015) Effects of Vertical Loading Patterns on Pushdown Analysis of Structures in Resisting Progressive Collapse. Journal of Building Structures, 36, 126-130.
[16]
Meng, B., Zhong, W. and Hao, J. (2018) Experimental Study on Anti-Collapse Performance for Beam-to-Column Assemblies of Steel Frame Based on Joint. Engineering Mechanics, 35, 88-96.
[17]
Lu, X., Li, Y. and Ye, L. (2011) Theory and Design Method for Progressive Collapse Prevention of Concrete Structures. China Architecture & Building Press, Beijing.
[18]
Department of Defense (2010) Unified Facilities Criteria (UFC): Design of Structures to Resist Progressive Collapse. United States Department of Defense, Washington DC.
