Elasto-plastic impact response analysis of shear-failure-type RC beams with shear rebars

被引:97
作者
Bhatti, Abdul Qadir [1 ]
Kishi, Norimitsu [2 ]
Mikami, Hiroshi [3 ]
Ando, Tomohiro [4 ]
机构
[1] NUST, Dept Struct Engn, Sch Civil & Environm Engn, Islamabad, Pakistan
[2] Muroran Inst Technol, Dept Civil Engn & Architecture, Muroran, Hokkaido 0508585, Japan
[3] Mitsui Construct Co Ltd, Tech Res Inst, Nagareyama 2700132, Japan
[4] Japan Def Agcy, Res Ctr 4, Tokyo, Japan
关键词
Shear failure type RC beam; Elasto-plastic impact response analysis; Impact loading;
D O I
10.1016/j.matdes.2008.05.068
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
In this paper, to establish a simple elasto-plastic impact analysis method for shear-failure-type reinforced concrete (RC) beams, failing-weight impact tests and three-dimensional finite element (FE) analyses were conducted. Here, twelve simply supported rectangular RC beams were used, each with dimensions of (width x depth x length) 200 x 400 x 2,400 mm. Shear rebar ratio and impact velocity were taken as variables. Impact load was applied at the mid-span of RC beam by dropping a 400 kg steel weight from pre-determined position. LS-DYNA nonlinear transient finite element analysis code was used for this research. From this study, it is seen that the time histories of impact force, reaction force and mid-span displacement, and crack patterns on the side-surface of RC beam can be predicted accurately by using the proposed FE analysis method. (C) 2008 Elsevier Ltd. All rights reserved.
引用
收藏
页码:502 / 510
页数:9
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