SIMPLIFIED NUMERICAL METHOD FOR DYNAMIC ANALYSIS OF RC COLUMNS UNDER BLAST LOADING
With the rapid development of computer technology and advancement of numerical techniques,numerical simulation becomes an important tool for reliable predication of dynamic response and damage of structural components or building structures under blast loading. However,the computer codes available for dynamic analyses are quite complex. Considerable experience with both the codes and the physical problems they are intended to solve is vital. Both the unreasonable establishment of the numerical model and the usage of coarser mesh size could lead to disagreement between computations and experience. And the analysis is normally very time consuming. In this paper,a simplified numerical method for dynamic analysis of RC columns under blast loading is proposed. It uses the Hughes-Liu beam elements and fiber-based section integration rule for discrete modelling of the concrete and longitudinal steel bars through defining different group of integration points with different material properties. The confinement of steel hoops on core concrete could be also considered by using Kent-Park model for derivation of confined concrete material for corresponding integration points. This simplified method is intended to increase the efficiency of numerical based dynamic analyses of RC columns under blast loading.
Simplified numerical method Dynamic analysis RC column Blast loading Hughes-Liu beam Fiber-based section integration rule
Yan-Chao Shi Zhong-Xian Li Hong Hao
School of Civil Engineering,Tianjin University/Key Laboratory of Coast Civil Structure Safety(Tianji School of Civil Engineering,Tianjin University/Key Laboratory of Coast Civil Structure Safety (Tianj School of Civil Engineering,Tianjin University/Key Laboratory of Coast Civil Structure Safety(Tianji
国际会议
The Eleventh International Symposium on Structural Engineering(第十一届结构工程国际研讨会)
广州
英文
513-518
2010-12-01（万方平台首次上网日期，不代表论文的发表时间）