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

页数：17

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