地震作用下RC框架结构承载力研究

英文篇名：Study on the Load Bearing Capacity of Reinforced Concrete Frame Structurce under Earthquake
中文刊名：江苏建筑
英文刊名：Jiangsu Construction
作者：王振波 ; 解子林 ; 季建伟
英文作者：WANG Zhen-bo ; XIE Zi-lin ; JI Jian-wei ; College of Civil Engineering ; Nanjing Tech University
中文关键词：现浇楼盖 ; RC框架结构 ; 抗弯承载力
英文关键词：cast-in-place ; reinforced concrete frame structures ; flexural capacity
出版日期：2014-12-31
机构：南京工业大学土木工程学院;
年：2014
期：06
出版单位：江苏建筑

摘要

现浇楼盖板对RC框架结构的破坏机制有着重要的影响,它对梁端抗弯承载力有一定的增强作用。文章综合考虑节点类型、边界条件、侧向变形量、直交梁刚度、加载机制、板的厚度、板的配筋量以及板筋的布置等因素来确定梁端有效翼缘,提出考虑板筋承载力的梁端抗弯承载力计算公式。通过实例对比,提出的改进公式可以实现钢筋混凝土框架结构的"强柱弱梁"破坏机制。
Cast-in-place floor has a significant impact on the failure mechanism of reninforced concrete frame structures,it has a certain enhancement effect on the flexural capacity of beam.This paper consider the factors of node type,boundary conditions,the thickness of the lateral deformation capacity,orthogonal beam stiffness,loading mechanism,thickness of the plate and the amount of reinforcing steel plates arranged ligament to determine the effective flange to the end of beam.By the examples of proof,the results show us that the proposed improved formula can make the failure mechanism of "strong column-weak beam" be achieved in frame structures.

引文

[1]吴勇,雷汲川,杨红,等.板筋参与梁端负弯矩承载力问题的探讨[J].重庆建筑大学学报,2002,24(3):33-37.
    [2]蒋永生,陈忠范,周绪平.整浇梁板的框架节点抗震研究[J].建筑结构学报,1994,15(6):11-16.
    [3]郑世举,蒋利学,张伟平,等.现浇混凝土框架梁端截面有效翼缘宽度的试验研究与分析[J].结构工程师,2009,25(2):134-140.
    [4]C.W.French.Effect of Floor Slab on Behavior of SlabBeam-Column Connections s[C].ACISP-123,Design of Beam-Column Joints for Seismic Resistance.1991.
    [5]M.R.Ehsani,J.K.Wight.Behavior of External Reinforced Concrete Beamto Column Connections Subjected to Earthquake Type Loading[R].Univ.Of Michigan,Ann Arbor,Mich,Jul,1982.
    [6]X.Qi.S.J.Pantazopou.Response of RC Frames under Lateral Loads[J].Journal of structural Engineering,ASCE.1991,117(4):1167-1188.
    [7]罗奇峰,王玉梅.从近几年震害总结中提出的结构性能设计理论[J].工程抗震,2001,(2):3-7.