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钢筋混凝土梁基于位移的变形能力设计方法
引用本文:钱稼茹,徐福江. 钢筋混凝土梁基于位移的变形能力设计方法[J]. 四川建筑科学研究, 2007, 33(2): 1-3
作者姓名:钱稼茹  徐福江
作者单位:清华大学结构工程与振动教育部重点实验室,土木工程系,北京,100084;清华大学结构工程与振动教育部重点实验室,土木工程系,北京,100084
基金项目:北京市教委与北京市自然科学基金联合重点项目
摘    要:建立了钢筋混凝土(RC)梁屈服位移角和极限位移角的计算公式,对154个试件的试验数据进行分析,得到了计算公式的相关参数。RC梁的屈服位移角与受拉钢筋屈服强度、截面高度有关;RC梁的极限位移角与配箍特征值、剪跨比和相对受压区高度等有关,在此基础上,提出了RC梁基于位移的变形能力设计方法。

关 键 词:钢筋混凝土梁  基于位移抗震设计  屈服位移角  极限位移角  变形能力
文章编号:1008-1933(2007)02-0001-03
修稿时间:2006-06-19

Displacement-based deformation capacity design method of reinforced concrete beams
QIAN Jiaru,XU Fujiang. Displacement-based deformation capacity design method of reinforced concrete beams[J]. Building Science Research of Sichuan, 2007, 33(2): 1-3
Authors:QIAN Jiaru  XU Fujiang
Affiliation:Key Laboratory for Structural Engineering and Vibration of the Ministry of Education, Department of Civil Engineering, Tsinghua University, Beijing 100084,China
Abstract:A model has been developed to predict the drift ratios of reinforced concrete beams at yielding and at ultimate respectively, and a set of test data is used for regression analysis of the model, and expressions for the drift ratio of RC beams are evaluated. The drift ratio of RC beams at yielding is related to the yielding strength of longitudinal bars and depth of beam cross section. The drift ratio of RC beams at ultimate is related to stirrup characteristic value, shear-span ratio and relative compression depth. According to the expression of drift of RC beam at ultimate, displacement-based deformation capacity design method of RC beams is proposed.
Keywords:RC beams   displacement-based seismic design   drift ratio at yielding   drift ratio at ultimate   deformation capacity
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