Experimental Study On Seismic Behavior Of Rigid Connection Joint Between Steel Beam And Concrete Wall

In recent years, the steel- concrete combined structure is extensively applied to the high buildings in our country. But, the researches mostly concentrate on these aspects such as the control of the comparatively displacement of structure floors under the earthquake action and the damage shape of structure when it suffer the rare earthquake action etc, the research on the weakness point (such as the conjunction node of steel beam and reinforced concrete core canister) of earthquake resistance of this structure system is not comprehensive. On the basis of the former researches and taking into account the practice of our country, this paper take the low period repeat loading experiment for three rigid conjunction node of steel beam and concrete wall, researching their load-bearing capacity and earthquake resistance performance under the low period repeat loading action, the main content concentrate on the following aspects:(1) Analyzing the three joint's damage shape, hysteretic curve, change of rigidity, yielding load, limit load, damage load, durability, energy dissipation capacity , the strain of the key position and the moment transferring mechanism.(2) Comparing the joint's load-bearing capacity and earthquake resistance performance among the joints with different stud bolt diameter and different connection plate thickness, researching some factor's influence on the work performance of the joint such as the high and strong stud bolt specification, connection plate thickness.(3) Introducing the application research condition and basic theory of fiber Bragg grating sensor in civil engineering at present, by comparing the experiment result, analyzing the relation of the wavelength to stiain, discussing the feasibility and practicing approach of applying the FBG sensor foT civil engineering detection.Finally, providing some unresolved problems on the basis of concluding the whole paper's works..