矩形截面大偏心受压构件对称配筋与非对称配筋钢筋用量对比的分析研究  

The Analysis and Study on the Amount Comparison of Symmetrical and Asymmetric Reinforcement for Rectangular Cross Section Large Eccentric Compression Member

作　　者：谢立安[1] XIE Li-an(Key Laboratory of Bridge Engineering Disaster Prevention and Mitigation in Shanxi,Key Laboratory of Highway Construction ＆ Maintenance Technique in Loess Area,Shanxi Transportation Research Institute,Taiyuan,Shanxi 030006,China)

机构地区：[1]山西省交通科学研究院桥梁工程防灾减灾山西省重点实验室黄土地区公路建设与养护技术交通行业重点实验室,山西太原030006

出　　处：《山西交通科技》2018年第4期94-97,共4页Shanxi Science & Technology of Transportation

摘　　要：矩形截面大偏心受压构件配筋设计分为非对称配筋设计和对称配筋设计两种情况,然而对称配筋钢筋总用量始终不少于非对称配筋,但具体增加量均未提及。运用具体算例、直观分析和理论分析,得出矩形截面大偏心受压构件对称配筋相对于非对称配筋时受压钢筋增加量、受拉钢筋增加量和钢筋总用量增加量的计算公式,以及钢筋增加量与轴向压力和初始偏心距的相关关系,研究成果可为工程设计人员提供参考依据。Using the detailed examples, intuitive and theoretical analysis, this paper obtained the calculation formulas of rectangular cross section large eccentric compression members symmetrical reinforcement with the increased amount of compression reinforcement,tensile reinforcement and the total amount of reinforcement when asymmetrical reinforcement. It also obtained the relationship between the reinforcement increment, axial pressure and initial eccentricity. The research results could provide references for the engineering designers.

关 键 词：矩形截面 大偏心受压构件 对称配筋 非对称配筋 钢筋用量 

分 类 号：U441.5[建筑科学—桥梁与隧道工程]