摘要
为研究HRB500钢筋轻骨料混凝土偏心受压构件的受力性能和承载力计算方法,对7个配置HRB500钢筋和1个配置HRB400钢筋轻骨料混凝土的偏心受压试件进行试验,研究参数有轻骨料混凝土强度、钢筋强度、偏心距和长细比。研究结果表明：试件的破坏形态有大偏心受压破坏和小偏心受压破坏两种;试件的偏心受压承载力随着轻骨料混凝土强度与钢筋强度的提高而提高,随着偏心距和长细比的减小而提高;截面应变符合平截面假定;其二阶效应和偏心受压承载力可使用普通混凝土设计规范的方法计算。
In order to study the mechanical properties and bearing capacity calculation method of lightweight aggregate concrete（LWAC） members with HRB500 steel bars under eccentric loading,the experiment of 7 members with HRB500 steel bars and 1 member with HRB400 steel bar were carried out. The parameters were studied,such as LWAC strength,steel strength,eccentricity and slenderness ratio. The research results showed that the failure modes of specimens had two types： one was large eccentric destruction,another was small eccentric destruction; the bearing capacity of eccentric compression members increased with the increase of LWAC strength and steel strength,and increased with the decrease of eccentricity and slenderness ratio; the cross-section strain was in accord with flat section assumption; the second-order effect and the bearing capacity of eccentric compression could be calculated by the formula in concrete code.
作者
翁晓红
张程远
劳裕华
肖志敏
WENG Xiaohong;ZHANG Chengyuan;LAO Yuhua;XIAO Zhimin(School of Mechanical Engineering, Suzhou University of Science and Technology, Suzhou 215011 , China;School of Civil Engineering, Suzhou University of Science and Technology, Suzhou 215011 , China)
出处
《工业建筑》
CSCD
北大核心
2018年第6期67-71,共5页
Industrial Construction
基金
轻骨料混凝土应用技术规程JGJ51研究项目
