Numerical Simulation of the Blast Resistance of SPUA Retrofitted CMU Masonry Walls

被引：6
|
作者：
Zhang, Yi [1 ]
Hu, Jiahui [2 ]
Zhao, Wenda [3 ]
Hu, Feng [1 ]
Yu, Xiao [1 ]
机构：
[1] PLA, Inst Def Engn, AMS, Beijing 100850, Peoples R China
[2] Tongji Univ, Coll Civil Engn, Shanghai 200092, Peoples R China
[3] China Construct Engn Bur Co Ltd, Shanghai 200122, Peoples R China
来源：
BUILDINGS | 2023年 / 13卷 / 02期
基金：
中国国家自然科学基金;
关键词：
far-range explosion; numerical simulation; masonry walls; sprayed polyurea; dynamic response;
D O I：
10.3390/buildings13020446
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
Through numerical simulation, the blast-resistant performance of spray polyurea elastomer (SPUA) retrofitted concrete masonry unit (CMU) masonry infill walls under far-range blast loading was studied. From an engineering perspective, the effects of boundary conditions and thickness of a SPUA layer on enhancing the blast resistance of masonry infill walls are discussed, and the blast resistance of SPUA-retrofitted and grouted CMU masonry infill walls are compared. It is concluded that the boundary constraint conditions and the anchorage length of SPUA layer have limited improvement on the blast-resistant performance of the wall; the thickness of SPUA layer can significantly improve the blast-resistant performance of the wall as the blast loading increases. In addition, SPUA retrofitting shows relatively better performance to reinforce masonry infill walls.
引用
收藏
页数：17
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