Experimental Research on Seismic Performance of Two-Story Full-Scale RC Frame with New-Type Prefabricated Enclosure Wall

Building envelope is an important part of the structure, to examine the influence of prefabricated building envelope on the seismic performance of frame structure, two trusses of two-story full-scale RC frames with prefabricated light steel keel out-hung wall panels and concrete out-hung wall panels, respectively, were designed and manufactured to carry out the quasi-static test, and the influence of new type exterior wall panels and their connecting joints on bearing capacity, stiffness degradation and energy dissipation of structures were studied. The test results showed that the RC frame structure with prefabricated exterior wall had good aseismic performance, the building envelope with large stiffness could provide additional stiffness to the main structure whose partial structural elements lost the bearing capacity under the large earthquake, so that the structure had better anti-collapse redundancy and could meet the deformation requirement of 1/50 inter-story drift. There was no obvious damage at the new connection joints of the prefabricated exterior wall, which indicated that the design of the joints was more reasonable and could realize the purpose of no slip under frequently occurred earthquake, no stress under moderate earthquake, and provide reliable connection for the building envelope under rarely occurred earthquake.