Experiment on Load-Bearing Performance and Load Transfer Path of Rectangular Steel Tube-Corrugated Steel Plate Composite Walls Under Vertical Loads at the Top End of the Wall
Rectangular steel tube-corrugated steel plate composite wall(STCPCW)is a novel type of shear wall.It consists of prefabricated steel components formed by horizontally laying corrugated steel plates connecting both sides of the steel tube,and then filling concrete inside the steel tube and the space between the double corrugated steel plates to form a composite wall.In order to study the bearing capacity of the STCPCWs under vertical load,five STCPCW specimens with different length and stud spacing were tested with vertical load conducting on single concrete-filled steel tube.During the test,the vertical displacement of the loaded CFST and the strain distribution of three sections with different heights were mainly measured.The results show that the vertical load transfers gradually from the rectangular steel tube to the overall section of the shear wall,and a certain transfer length is required.The length of the wall between the tubes and the interval of the bolts are the primary factors that affect the transfer length and the linearity of the section strain distribution.When the length between the tubes is no greater than five times the wall thickness and the spacing between studs is less than 200 mm,the vertical load can be effectively transferred to the full section through 1.07 times the width of the wall width before the tube fails.It can provide the basic basis for further design calculation method of the bearing capacity of the STCPCW under vertical load.
万方数据
维普
