Performance-based seismic design method of predetermined yield mode for complicated building structures

被引：0

作者：

Xiao C. ^{[1
]}

Li J. ^{[1
]}

Chen C. ^{[1
]}

Ren C. ^{[1
]}

Lu Y. ^{[1
]}

Kang Z. ^{[1
]}

机构：

[1] China Academy of Building Research, Beijing

来源：

Jianzhu Jiegou Xuebao/Journal of Building Structures | 2019年 / 40卷 / 03期

关键词：

Complicated building structure; Performance-based seismic design; Predetermined yield mode; Stiffness reduction coefficient;

D O I：

10.14006/j.jzjgxb.2019.03.009

中图分类号：

学科分类号：

摘要：

The main seismic design concept in the current code allows regular structure members to dissipate energy uniformly when entering into the plastic stage. This design approach isn't suitable for complicated building structures with obvious weak part. A performance-based seismic design method based on predetermined yield mode is proposed, and the basic design flow is provided. The stiffness reduction coefficient for structural members is calculated by nonlinear dynamic analysis of the entire structure, which can improve the accuracy of spectra analysis for moderate or rare earthquakes. A case study of a complicated high-rise building structure with weak parts shows that the seismic design concept for complicated building structures can be changed from irregularity control in the current code to failure mode control in the newly proposed seismic design method, and meantime, the risk of early loss of structural resistance due to failure of the weak parts is avoided, and as a result the level of safety of the complicated building structure is enhanced. © 2019, Editorial Office of Journal of Building Structures. All right reserved.

引用

页码：92 / 99

页数：7

共 5 条

[1] Technical specification for concrete structures of tall building: JGJ 3-2010, (2010)
[2] Xu P., Dai G., Performance based seismic design of tall building structures beyond the code specification, China Civil Engineering Journal, 38, 1, pp. 1-10, (2005)
[3] Ye L., Cheng G., Qi Y., Application of structure system capacity design approach in energy dissipation structure design, Earthquake Resistant Engineering and Retrofitting, 30, 2, pp. 1-5, (2008)
[4] Newmark N.M., Hall W.J., Earthquake Spectra and Design, pp. 136-152, (1982)
[5] Code for seismic design of buildings: GB 5011-2010, (2010)

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