原文传递
Static and Dynamic Responses of Reinforced Concrete Structures under Sudden Column Removal Scenario Subjected to Distributed Loading
| 题名： | Static and Dynamic Responses of Reinforced Concrete Structures under Sudden Column Removal Scenario Subjected to Distributed Loading |
| 正文语种： | 英文 |
| 作者： | Anh Tuan Pham1; Kang Hai Tan2 |
| 作者单位： | 1Researcher, Vietnam Institute for Building Science and Technology, 81 Tran Cung St., Cau Giay District, Hanoi, Vietnam. 2Professor, School of Civil and Environmental Engineering, Nanyang Technological Univ., 50 Nanyang Ave., Singapore 639798, Singapore (corresponding author). |
| 关键词： | Reinforced concrete; Progressive collapse; Catenary action; Compressive arch action; Concentrated loading; Uniformly |
| 摘要： | In this paper, static and dynamic experiments on reinforced concrete beam-column frames under single-column-removal scenario applying a multipoint loading method were conducted. One of the objectives was to investigate structural behavior compared with the singlepoint loading method, which has been popularly used in previous studies. By equally applying point loads at four locations of the double-span beam structure, the test setup successfully simulated the uniformly distributed loading condition, which is generally applicable for gravity loads in practice. Compared with the previously conducted static tests based on concentrated loading method, structural response from the static tests under multipoint loading condition differed not only on load-bearing capacity but also on failure sequence and displacement profile. On the basis of the test results, the analytical relationship between behaviors of the two loading methods was developed and verified. Compared with the static tests, the dynamic tests highlighted dynamic effects created by the column loss event and confirmed the structural behavior and failure modes observed in the static environment. The dynamic tests also verified the correctness and conservatism of the dynamic assessment framework using a previously proposed energy-based approach. Most important, both the static and the dynamic tests of structures under distributed loads showed less development of catenary action against progressive collapse compared with concentrated loading tests. |
| 出版年： | 2019 |
| 期刊名称： | Journal of Structural Engineering |
| 卷： | 145 |
| 期： | 1 |
| 页码： | 1-17 |
相关文献
- Dynamic Effects on Steel Frames with Concrete Slabs under a Sudden Edge-Column Removal Scenario
- Experimental Study of Dynamic Progressive Collapse in Flat-Plate Buildings Subjected to Exterior Column Removal
- Performance of precast concrete moment frames subjected to column removal: Part 2, computational analysis
- Dynamic Performance of Flush End-Plate Beam-Column Connections and Design Applications in Progressive Collapse
- Resistance of Flat-Plate Buildings against Progressive Collapse. II: System Response
- Static Load Test on the Progressive Collapse Resistance of Precast Concrete Frame Substructure during and after High Temperature
检索历史
应用推荐
