Performances of a new sustainable and durable dry beam-column joints under cyclic and impact loads  

作　　者：HAO Hong NGO Tuan T. PHAM Thong M. LI HuaWei 

机构地区：[1]Center for Infrastructural Monitoring and Protection,School of Civil and Mechanical Engineering,Curtin University,Bentley WA 6102,Australia [2]The Faculty of Engineering and Technology,Quy Nhon University,Binh Dinh 590000,Viet Nam [3]Guangzhou University-Curtin University Joint Research Center for Structural Monitoring and Protection against Multi-Dynamic Hazards,School of Civil Engineering,Guangzhou University,Guangzhou 510006,China

出　　处：《Science China(Technological Sciences)》2023年第2期282-300,共19页中国科学（技术科学英文版）

基　　金：financial support from the Australian Research Council Laureate Fellowships FL180100196。

摘　　要：This study investigated the performances of a new type of precast beam-column joint subjected to earthquake and impact loads.For sustainability and durability considerations,new materials such as corrosion-resistant fibre reinforced polymer(FRP)bolts and reinforcements,fibre reinforced concrete(FRC),and geopolymer concrete(GPC)were used to construct the joint.To examine the resilience,durability,sustainability,and multi-hazard resistance capacities,both cyclic and pendulum impact tests were carried out.The experimental results demonstrated that the proposed precast joints had the comparable or even better performances as compared with the traditional monolithic joints under cyclic and impact loads.Numerical simulations using ABAQUS were also adopted to determine the optimal values of the concrete-end-plate(CEP)thickness for the proposed dry joints and to further quantify other response parameters which could not be obtained during the test,e.g.,stress distribution,energy absorption,and stress contours.Discussion on the influences of various parameters on joint performances under different loading conditions was also presented in this study.

关 键 词：multi-hazards cyclic loads impact loads FRP bolts FRP reinforcements geopolymer concrete fibre-reinforced concrete dry joints ABAQUS 

分 类 号：TU375[建筑科学—结构工程]