空间钢构架混凝土连续梁的弯矩重分布性能  

Study on the Behavior of Bending Moment Redistribution in Spatial Steel Frame Concrete Continuous Beam

作　　者：董鑫 唐兴荣[1] DONG Xin;TANG Xingrong(School of Civil Engineering,Suzhou University of Science and Technology,Suzhou 215011,China)

机构地区：[1]苏州科技大学土木工程学院,江苏苏州215011

出　　处：《江苏海洋大学学报（自然科学版）》2022年第3期49-56,共8页Journal of Jiangsu Ocean University:Natural Science Edition

摘　　要：为研究空间钢构架混凝土连续梁的弯矩重分布性能,采用ABAQUS软件,建立了空间钢构架混凝土连续梁的有限元分析模型。在有限元模型可行性验证的基础上,探讨了支座弯矩调幅系数和配箍特征值对空间钢构架混凝土连续梁弯矩重分布性能的影响规律。分析结果表明:在支座弯矩调幅系数一定时,随着配箍特征值的增大,连续梁竖向集中峰值荷载相应提高,且支座弯矩调幅系数越小,配箍特征值的影响就越大。在分析基础上提出空间钢构架混凝土连续梁弯矩调幅系数的建议取值,可供工程设计人员参考。In order to study the behavior of bending moment redistribution in spatial steel frame concrete continuous beam, the concrete continuous beam models are created by ABAQUS. Based on the feasibility verification of the finite element model, the influence of bending moment amplitude modulation and reinforcement properties of hoop on the behavior of bending moment redistribution in spatial steel frame concrete continuous beam is discussed. The analysis results show that when the bending moment amplitude modulation is certain, the vertical concentrated peak load of the continuous beam increases accordingly with the increase of the reinforcement properties of hoop, and the smaller the bending moment amplitude modulation, the greater the influence of the reinforcement properties of hoop. On the basis of the analysis, the recommended value of the bending moment amplitude modulation in spatial steel frame concrete continuous beam is put forward for the reference of the engineering designers.

关 键 词：空间钢构架混凝土 连续梁 弯矩调幅系数 有限元分析 

分 类 号：TU398.9[建筑科学—结构工程]