RC框架结构带高端平台板和低端平台板滑动支座
Study on seismic performance of sliding bearing staircase with upper-end slab and low side slab in RC frame structure
研究地震作用下同时带高、低端平台板的滑动支座楼梯的抗震性能、起滑性能、变形特征以及建筑面层对梯板滑动性能的影响，依据标准图集设计制作了缩尺比例为1:2的混凝土框架楼梯试件进行拟静力试验，并采用ABAQUS对其进行有限元分析。试验和有限元分析结果表明：高、低端平台板的混凝土未发生开裂，性能完好；带高、低端平台板的梯板滑动性能良好，建筑面层强度低，对楼梯滑动性能的影响可以忽略；楼梯间试件的破坏主要集中于梯梁和梯柱；加载过程中梯段板存在竖向翘起现象，但处于较小水平。
In order to verify the sliding performance, deformation characteristics and the influence of building surface layer on the sliding performance of staircase of sliding bearing stairs with high-end and low-end slabs, a 1:2 scale frame staircase specimen is designed based on standard atlas and subjected to pseudo-static test and simulated with ABAQUS. Experimental results show that concrete of high and low platform has not cracked, and the performance is good. Secondly, the sliding performance of gangboard with high and low end platform is good and the effect of building surface layer on the sliding performance of staircase can be ignored because of the low strength. The failure of the staircase is mainly concentrated on the ladder beam and the ladder column. The slight vertical tilt phenomenon is found in stair plate.
李姣姣、彭凌云、李永梅、曹达忠
建筑结构
RC框架结构高端平台板和低端平台板滑动支座抗震性能
RC frame structureupper-end slab and low side slabsliding bearing staircaseseismic performance
李姣姣,彭凌云,李永梅,曹达忠.RC框架结构带高端平台板和低端平台板滑动支座[EB/OL].(2018-12-05)[2025-08-02].http://www.paper.edu.cn/releasepaper/content/201812-15.点此复制
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