钢结构建筑顶棚的抗震性测试分析研究

Analysis of Aseismatic Test of Steel Structure Building Roof

研究钢结构建筑顶棚的抗震性及结构强度的数值分析问题,为建筑设计和地震预防评估提供数值依据。为了实现对地震下钢结构建筑顶棚的抗震性测试和提高,需要进行地震下钢结构建筑顶棚结构力学分析。在钢结构建筑顶棚结构模型中,剪切钢筋在连接面附近均屈服,水平拉筋和水平构造筋基本处于弹性状态,挡块的强度主要来自混凝在开裂面上的剪力传递值,得到单排和双排连接面转动刚体钢结构建筑顶棚,在同载荷水平下,采用离散性抗震约束关系,得到建筑抗震工程抗震约束断裂屈服积分函数,构建单元平衡方程,依据Euler-Bernoulli梁理论,得到屈服机制的评定系数,实现准确的抗震性测试分析,实验研究得出,该模型对钢结构建筑顶棚的抗震性分析准确,有效提高了钢结构建筑顶棚应力强度和抗震性能。

Analysis of the problems of numerical seismic and structural strength of steel structure building roof, provides a numerical basis for construction design and earthquake prevention evaluation. In order to achieve the seismic performance test of the steel structure building roof under earthquake and improve the seismic analysis, need under the steel structure building roof structure mechanics. In the model of steel structure building roof structure, shear reinforcement yielding on the connecting surface near the horizontal reinforcement and the level of structural reinforcement are basically in the state of elasticity, block strength mainly from coagulation in cracking on the surface of the shear transfer value, are single and double row connected to the surface of rotation of rigid body steel structure building roof, in the same load level, using the discrete seismic constraint relationship, obtained seismic constrained seismic building engineering fracture yield integral function, constructing the element equilibrium equation, based on the Euler-Bernoulli beam theory, the evaluation coeffi-cient obtained yield mechanism, realize the aseismic test accurate analysis results show that the model for seismic analysis of steel structure building roof is accurate, effective to improve the building steel structure roof stress strength and seismic performance.