【摘要】 破坏过程的计算机仿真可以反映结构的薄弱部位、破坏机理和破坏特征。对这一领域的成果和存在的问题进行了综合分析,提出了解决问题的方向。利用动力有限元程序LS-DYNA模拟了框架结构的倒塌过程。仿真计算的结果与真实倒塌过程吻合较好,说明通过合理选取计算参数和计算模型,可以对这种特殊的复杂破坏过程进行模拟分析和仿真。通过预演或再现倒塌过程,发现了结构在强震作用下的薄弱环节,为提高框架结构抗震性能研究、建立结构防倒塌机制提供了有力的技术支撑。更多还原

【Abstract】 Computer simulation of failure process can reflect the weak link,failure mechanism and characteristics of the structure,the results in this field and problems synthetically is analyzed and the way to solve those problems is proposed.It uses LS-DYNA software to simulate the collapse of masonry structure.Computer simulation result is similar to the real collapsing process.Choose correct parameters and module,this complex collapsing process can be simulate and analyzed.Through preview or reappear the collapsing process,weak link in the structure under the earthquake can be found.It not only promote earthquake resistacne of structure,but also provide strong technology support in building earthquake resistance system.更多还原