部分柱顶滑移钢筋混凝土框剪结构的地震扭转反应分析

PDF(1690 KB)

振动与冲击 ›› 2018, Vol. 37 ›› Issue (8) : 132-140.

论文

吕文龙1, 2，吴波, 1

作者信息 +

Analysis of torsional response of RC frame shear wall structures with partial columns sliding at upper ends under earthquakes

LV Wenlong 1, 2, WU Bo , 1

Author information +

文章历史 +

摘要

通过大量算例分析，揭示了部分柱顶滑移框剪结构因偶然偏心引发的地震扭转效应，以及结构周期比和长宽比对该效应的影响规律，并与常规框剪结构进行了对比，提出了相应的设计建议。研究表明：（1）考虑偶然偏心时，部分柱顶滑移框剪结构的弹性扭转反应略小于常规框剪结构，且结构周期比和长宽比对前者的影响规律与后者几乎相同；（2）随着结构周期比的增加，大震作用下部分柱顶滑移框剪结构的顶层最大水平位移增大幅度总体呈现出上升的趋势，但多数情况下小于常规框剪结构，且上升幅度相比小震时减小；（3）随着结构长宽比的增加，大震作用下部分柱顶滑移框剪结构的顶层最大水平位移增大幅度总体呈现出而先增后降的趋势，且当长宽比在1~2之间变化时上升明显。

Abstract

Based on extensive numerical analyses, torsional response of the frameshear wall structures with partial columns sliding at upper ends (FSPCS), due to accidental eccentricity and induced by earthquakes, have been investigated. Influences of the structural period ratio and lengthtowidth ratio on such response have been revealed. A comparison between the torsional response of the FSPCS and that of the conventional frameshear wall structure (CFSWS) was presented. It can be found that: ①when the accidental eccentricity is taken into account, the elastic torsional response of the FSPCS is less than that of the CFSWS, and the influences of the structural period ratio and lengthtowidth ratio on the FSPCS are almost the same as those on the CFSWS; ②with the increasing of the structural period ratio, the enhancing range of the top storey’s maximum horizontal displacement of the FSPCS under major earthquake generally increases, but in most cases is less than that of the CFSWS. Meanwhile the enhancing range related to the FSPCS under major earthquake is lower than that under minor earthquake; ③with the increasing of the lengthtowidth ratio, the enhancing range of the top storey’s maximum horizontal displacement of the FSPCS under major earthquake generally exhibits a trend of increasing first and then decreasing later, and the enhancing is significant when the lengthtowidth ratio ranges from 1 to 2.

导出引用

吕文龙1, 2，吴波, 1. 部分柱顶滑移钢筋混凝土框剪结构的地震扭转反应分析[J]. 振动与冲击, 2018, 37(8): 132-140

LV Wenlong 1, 2, WU Bo,1. Analysis of torsional response of RC frame shear wall structures with partial columns sliding at upper ends under earthquakes[J]. Journal of Vibration and Shock, 2018, 37(8): 132-140

参考文献

[1] 胡庆昌. 1995年1月17日日本阪神大地震中神户市房屋结构震害简介[J]. 建筑结构学报, 1995, 16(3): 10-12
Hu Qingchang. Introduction of damage of building structures in Kobe Earthquake on 17 January 1995[J]. Journal of building structures, 1995, 16(3): 10-12. (in Chinese)
[2] 温增平, 徐超, 陆鸣, 等. 汶川地震重灾区典型钢筋混凝土框架结构震害现象[J]. 北京工业大学学报, 2009, 35(6): 753-760
Wen zengping, Xu Chao, Lu Min, et al. Damage features of R.C frame structures in Wenchuan Earthquake[J]. Journal of Beijing University of Technology, 2009, 35(6): 753-760. (in Chinese)
[3] 吴波, 王明君. 混凝土空间板柱结构的震致落层倒塌分析[J]. 华南理工大学学报（自然科学版）, 2012, 40(2): 1-6
Wu Bo, Wang Mingjun. Analysis of Pancake Collapse of RC Space Slab-Column Structures under Earthquake[J]. Journal of South China University of Technology (Natural Science Edition), 2012, 40(2): 1-6. (in Chinsese)
[4] 吴波, 黄仕香, 赵新宇. 混凝土框剪结构的落层倒塌碰撞试验[J]. 工程力学, 2012, 29 (6): 176-187
Wu Bo, Huang Shixiang, Zhao Xinyu. Experimental study on pancake collapse of RC frame-shear wall structures [J]. Engineering Mechanics, 2012, 29(6): 176-187. (in Chinese)
[5] Hawkins N M, Mitchell D. Progressive collapse of flat plate structures [J]. ACI Journal, 1979, 76(7): 775-808.
[6] A. Astaneh-Asl. Progressive collapse prevention in new and existing buildings [C]. Proc. Of the 9th Arab Structural Engineering Conf. Abu Dhabi, UAE. 2003: 1001-1008
[7] 吴波, 陈展图. 抗倒塌柱顶部分滑移钢筋混凝土框架结构的初步研究[J]. 地震工程与工程振动, 2008, 28(4): 82-87
Wu Bo, Chen Zhantu. Preliminary study on RC frame structures with sliding at partial column upper ends for preventing collapse [J]. Earthquake Engineering and Engineering Vibration, 2008, 28(4): 82-87. (in Chinese)
[8] 吴波, 吕文龙, 熊伟. 部分柱顶滑移钢筋混凝土框剪结构[J]. 工程力学, 2011, 28(4): 82-88
Wu Bo, Lu Wenlong, Xiong Wei. RC frame-shear wall structures with partial columns sliding at upper ends [J]. Engineering Mechanics, 2011, 28(4): 82-88. (in Chinese)
[9] 吴波, 吕文龙. 部分柱顶滑移钢筋混凝土框剪结构的深化研究[J]. 工程力学, 2012, 29(8): 143-149
Wu Bo, Lu Wenlong. Research on RC frame-shear wall structures with partial columns sliding at upper ends [J]. Engineering Mechanics, 2012, 29(8): 143-149. (in Chinese)
[10] 吴波, 吕文龙, 沈朝勇. 部分柱顶滑移钢筋混凝土框剪结构的试验研究[J]. 工程力学, 2015, 32(2): 163-170
Wu Bo, Lu Wenlong, Shen Chaoyong. Experimental study on RC frame-Shear wall structure with partial columns sliding at upper ends [J]. Engineering Mechanics, 2015, 32(2): 163-170. (in Chinese).
[11] 吴波, 吕文龙. 部分柱顶滑移钢筋混凝土结构的滑移柱P-δ效应[J]. 华南理工大学学报 (自然科学版), 2016, 44(2): 1-7
Wu Bo, Lu Wenlong. Study on P-δ Effect of Sliding Columns in RC Structures with Partial Columns Sliding at Upper Ends [J]. Journal of South China University of Technology (Natural Science Edition), 2016, 44(2): 1-7 (in Chinese)
[12] 吕文龙. 部分柱顶滑移钢筋混凝土框剪结构的简化分析[J]. 地震工程与工程振动, 2016, 36(3): 178-186
Lu Wenlong. Simplified analysis of RC frame-Shear wall structure with partial columns sliding at upper ends [J]. Earthquake Engineering and Engineering Dynamics, 2016, 36(3): 178-186 (in Chinese)
[13] Computer and Structures Inc. Perform component and element [M]. Berkeley: Computer and Structures Inc. 2006.
[14] Park Y J, Wen Y K, Ang A H S. Random vibration of hysteretic systems under bi-directional ground motions [J]. Earthquake Engineering & Structural Dynamics, 1986, 14(4): 543-557.
[15] Constantinou M, Mokha A, Reinhorn A. Teflon bearings in base isolation-Part II: Modeling [J]. Journal of Structural Engineering, ASCE, 1990, 116(2): 455-474.