不对称型钢混凝土梁抗弯承载力  

Loading Capacity of Unsymmetrical Steel Reinforced Concrete Beam Under Bending

作　　者：王秀芬[1] 尹越[1,2] 杜明军 宋宁 

机构地区：[1]天津大学建筑工程学院,天津300072 [2]滨海土木工程结构与安全教育部重点实验室(天津大学),天津300072 [3]成都基准方中建筑设计有限公司,成都610000 [4]中国能源建设集团云南省电力设计院有限公司,昆明650011

出　　处：《天津大学学报（自然科学与工程技术版）》2015年第B07期17-24,共8页Journal of Tianjin University：Science and Technology

摘　　要：进行了不对称型钢混凝土梁抗弯承载力试验,通过两根试件的单调加载试验,确定了不对称型钢混凝土梁的抗弯承载力、破坏形态及截面应变特征等基本性能;建立了型钢混凝土梁有限元模型,有限元分析得到的构件抗弯承载力与试验结果吻合较好,验证了有限元分析模型的正确性.推导了不对称型钢混凝土梁抗弯承载力实用计算方法,计算结果与试验数据及有限元分析结果符合较好,为不对称型钢混凝土梁在实际工程中的应用提供了设计依据.Unsymmetrical steel reinforced concrete beam under bending was studied experimentally in this paper. Structural behaviours of the beam under monotonic load, such as loading capacity, failure mode and strain distribu- tion, were determined by bending tests on two specimens. Finite element analysis model was set up for the unsym- metrical steel reinforced concrete beam. The loading capacity of the beam under bending obtained by finite element analysis agreed well with test results, which verified the rationality of the finite element method. Practical design method was presented for the unsymmetrical steel reinforced concrete beam. It was proved that the practical design method can give consistent loading capacity of bending for the practical design of unsymmetrical steel reinforced con- crete beams.

关 键 词：不对称型钢混凝土梁 抗弯承载力 有限元分析 

分 类 号：TU398[建筑科学—结构工程]