采用新配筋方案小跨高比抗震连梁的试验研究.pdf

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第 26 卷第 1 期重庆建筑大学学报 Vol. 26 No. 1

2004 年 2 月 Journal of Chongqing Jianzhu University Feb. 2004
文章编号:1006 - 7329 (2004) 01 - 0050 - 05
采用新配筋方案小跨高比抗震连梁的试验研究①
傅剑平, 赵杰林, 曹云锋, 白绍良
(重庆大学土木工程学院, 重庆 400045)
摘要:洞口连梁是抗震联肢剪力墙塑性耗能机构的关键部件,但高延性小跨高比连梁的设计仍是
国内外抗震钢筋混凝土结构中至今未能有效解决的问题之一。本文作者所在研究组提出的加设
对角交叉斜筋及菱形斜筋的新配筋方案,经试验证明其抗震性能优良,且便于施工,是解决这一
难题的有效出路。本文着重介绍所完成的第二批低配筋率构件的试验结果以及从中得出的主要
规律。
关键词:钢筋混凝土; 抗震联肢剪力墙; 小跨高比连梁
中图分类号: TU375. 1 文献标识码:A
Test Study on the Small Span - to Depth Ratio Seismic Coupling
Beams with Low Reinforcement Rate by New Reinforcement Scheme
FU Jian - ping , ZHAO Jie - lin , CAO Yun - feng , BAI Shao - liang
(College of Civil Engineering , CU , Chongqing 400045 , P. R. China)
Abstract :Coupling beams are the key elements of plastic energy dissipation mechanisms in coupled walls.
However ,the design of the small span to depth ratio coupling beams with high ductility is still one of the prob
lems not solved effectively in domestic and foreign seismic reinforced concrete structure design. The research
group ,where the authors of this paper are ,brings forward a new reinforcement scheme with adding diagonal
and rhombic bars to traditional reinforcement in the foundation. Test results prove that it is an effective way to
solve the problems for it has good seismic performance and is easy to be constructed. This paper puts grea