期刊首页 优先出版 当期阅读 过刊浏览 作者中心 关于期刊 English

《结构与土木工程前沿(英文)》 >> 2020年 第14卷 第4期 doi: 10.1007/s11709-020-0633-4

Simplified theoretical analysis and numerical study on the dynamic behavior of FCP under blast loads

. Anhui Key Laboratory of Civil Engineering Structures and Materials, Hefei University of Technology, Hefei 230009, China.. State Key Laboratory of Structural Analysis for Industrial Equipment, Dalian University of Technology, Dalian 116024, China.. School of Civil Engineering, Hefei University of Technology, Hefei 230009, China.. Department of Civil and Environmental Engineering, University of Houston, Houston, TX 77024, USA

收稿日期: 2020-05-25 录用日期: 2020-06-28 发布日期: 2020-06-28

下一篇 上一篇

摘要

Precast concrete structures have developed rapidly in the last decades due to the advantages of better quality, non-pollution and fast construction with respect to conventional cast-in-place structures. In the present study, a theoretical model and nonlinear 3D model are developed and established to assess the dynamic behavior of precast concrete slabs under blast load. At first, the 3D model is validated by an experiment performed by other researchers. The verified model is adopted to investigate the blast performance of fabricated concrete panels (FCPs) in terms of parameters of the explosive charge, panel thickness, and reinforcement ratio. Finally, a simplified theoretical model of the FCP under blast load is developed to predict the maximum deflection. It is indicated that the theoretical model can precisely predict the maximum displacement of FCP under blast loads. The results show that the failure modes of the panels varied from bending failure to shear failure with the mass of TNT increasing. The thickness of the panel, reinforcement ratio, and explosive charges have significant effects on the anti-blast capacity of the FCPs.

相关研究