Relationship of strength reduction factor and maximum ductility factor for seismic design of one-storey industrial steel frames

被引：0
作者：
Van Thuat D. [1 ]
Viet Chuong H. [1 ]
Duong B. [2 ]
机构：
[1] Faculty of Building and Industrial Construction, National University of Civil Engineering, No. 55 Giai Phong Road, Hai Ba Trung District, Hanoi
[2] Faculty of Hydraulic Engineering, National University of Civil Engineering, Hanoi
来源：
Asian Journal of Civil Engineering | 2020年 / 21卷 / 5期
关键词：
Ductility factor; Industrial steel frames; Irregularity; Monte Carlo simulations; Probability; Relationship; Seismic intensities; Strength reduction factor; Vertical actions;
D O I：
10.1007/s42107-020-00244-0
中图分类号：
学科分类号：
摘要：
In the earthquake-resistant design, it requires a check of the adequacy of the maximum inelastic deformation of structural members designed corresponding to the value of strength reduction factor, R, used for determining the design base shear and consequently equivalent static seismic forces applied on the structure. This paper presents evaluation of a relationship of the factor R and maximum ductility factor, D, for irregular building structures, particularly considered in this study for the case of one-storey industrial steel building frames with cranes by considering the effects of structural irregularities, seismic intensities and simultaneously horizontal and vertical seismic actions. In the evaluation, approximate equations were presented to determine the relationship which was characterized by the factor F. The relationship was evaluated by conducting a number of rigorous nonlinear inelastic dynamic time-history analyses of various one- and two-span analytical frames designed with various values of R = 2, 3 and 4 and maximum ground acceleration a = 0.25g, 0.5g and 0.75g. Based on the analytical results, the means and standard deviations of the relationship factor F for the analytical frames considered were presented by using approximation equations as well as Monte Carlo simulations. © 2020, Springer Nature Switzerland AG.
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页码：841 / 856
页数：15
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