Collapse-Resistant Performance of Long-Span Single-Layer Spatial Grid Structures Subjected to Equivalent Sudden Joint Loads

被引：46
作者：
Tian L.-M. [1 ,2 ,3 ]
Wei J.-P. [3 ]
Huang Q.-X. [4 ]
Ju J.W. [5 ]
机构：
[1] Shaanxi Key Lab of Structure and Earthquake Resistance, School of Civil Engineering, Xi'An Univ. of Architecture and Technology, Xi'an
[2] Visiting Scholar, Dept. of Civil and Environmental Engineering, Univ. of California, Los Angeles
[3] School of Civil Engineering, Xi'An Univ. of Architecture and Technology, Xi'an
[4] School of Civil Engineering, Huaqiao Univ., Xiamen
[5] Dept. of Civil and Environmental Engineering, Univ. of California, Los Angeles, 90095, CA
来源：
Journal of Structural Engineering (United States) | 2021年 / 147卷 / 01期
基金：
中国国家自然科学基金;
关键词：
Cable-reinforced Kiewitt dome; Collapse-resistant performance; Long-span single-layer spatial grid structure; Progressive collapse; Suddenly applied load;
D O I：
10.1061/(ASCE)ST.1943-541X.0002904
中图分类号：
学科分类号：
摘要：
A dynamic experiment of progressive collapse constitutes the basis of a collapse-resistant analysis. To achieve broad applicability and avoid superfluous influencing factors, two representative substructures extracted from long-span single-layer spatial grid structures were tested using a quick-loading system. The strain and displacement results of the specimens were analyzed, as well as the collapse-resistant mechanisms. The dynamic performance of a full-scale Kiewitt dome was investigated using the hybrid finite-element (FE) model. Finally, a novel cable-reinforced Kiewitt dome is proposed to improve the collapse resistance of Kiewitt domes. The results show that the tests and associated analyses contribute to establishing a database of benchmark models for collapse-resisting simulation of long-span single-layer spatial grid structures. The FE results are well-validated by the test results. The time history of the loading with a suddenly applied load of 1,000 kg for S-10 is similar to the time history of the resistance in a compression mechanism. Owing to the geometric nonlinearity, the time history of the resistance for the catenary mechanism is asymmetrically distributed based on the final equilibrium state. The dynamic performance of long-span single-layer spatial grid structures is significantly affected by the duration of the suddenly applied load. The maximum displacement of the novel cable-reinforced Kiewitt dome is substantially reduced, and the maximum stress is smaller than the yield stress of steel. The superiority of the cable-reinforced Kiewitt dome is therefore demonstrated. © 2020 American Society of Civil Engineers.
引用
收藏
相关论文
共 27 条
  • [1] Biegus A., Rykaluk K., Collapse of Katowice fair building, Eng. Fail. Anal., 16, JUL, pp. 1643-1654, (2009)
  • [2] Caglayan O., Yuksel E., Experimental and finite element investigations on the collapse of a Mero space truss roof structure - A case study, Eng. Fail. Anal., 15, JUL, pp. 458-470, (2008)
  • [3] El Kamari Y., Raphael W., Chateauneuf A., Reliability study and simulation of the progressive collapse of Roissy Charles de Gaulle Airport, Case Stud. Eng. Fail. Anal., 3, APR, pp. 88-95, (2015)
  • [4] Guo Y.L., Fu P.P., Zhou P., Tong J.Z., Elastic buckling and load resistance of a single cross-arm pre-tensioned cable stayed buckling-restrained brace, Eng. Struct., 126, NOV, pp. 516-530, (2016)
  • [5] Li P.C., Wu M.E., Parametric study of cable-stiffened single-layer cylindrical latticed shells with different supporting conditions, J. Constr. Steel Res., 121, JUN, pp. 457-467, (2016)
  • [6] Liu C., Fung T.C., Tan K.H., Dynamic performance of flush end-plate beam-column connections and design applications in progressive collapse, J. Struct. Eng., 142, 1, (2016)
  • [7] Piroglu F., Ozakgul K., Partial collapses experienced for a steel space truss roof structure induced by ice ponds, Eng. Fail. Anal., 60, FEB, pp. 155-165, (2016)
  • [8] Shekastehband B., Ayoubi M., Nonlinear dynamic instability behavior of tensegrity grids subjected to impulsive loads, Thin Walled Struct., 136, MAR, pp. 1-15, (2019)
  • [9] Talaslioglu T., A unified optimal design approach for geometrically nonlinear skeletal dome structures, Periodica Polytech. Civ. Eng., 63, 2, pp. 518-540, (2019)
  • [10] Tian L.M., Hao J.P., Wei J.P., Zheng J., Integral lifting simulation of long-span spatial steel structures during construction, Autom. Constr., 70, OCT, pp. 156-166, (2016)
123