Adding Steel Storeys Study On Seismic Behavior Of Steel Reinforced Nodes Of Outsourcing

Adding Steel Storeys has become a great way to expand the housing area,which is in the old building and floor,no longer occupy land or occupy a small part of the land.In order to add a layer structure of internal forces effectively spread the original structure,adding layer after the overall mechanical properties of the structure is not affected,connecting the old and new structures will become the key to the whole additional layer project.Column Base Joint of Lightweight Steel Adding layers is an important link connecting the old and new buildings is an important part of the force transfer is also an important part of seismic,it is necessary to add layers of light steel column base joint study proposed seismic design calculations methods,constructors,and methods of construction and other more complete technical documentation.Outsourcing is a steel reinforced node seismic behavior literature suggests relatively good light steel column base layer plus method.This article will study the seismic behavior,research results have practical significance and application value,can add layers of light steel promotion play a role.In this paper,the test data provided by the literature,the use of finite element anal-ysis software ABAQUS6.10 modeled encased steel reinforced nodes,and the finite element model of computing to solve,and then calculate finite element results with experimental results were analyzed,verify the accuracy of the model.In the following analysis,the application control variables method to outsourcing st-eel plate thickness,the length of the beam angle,beam width and the upper steel encased steel axial compression ratio parameter variables studied in each node parameters byvariation of cyclic loading force performance.Final conclusion:increased outsourcing ofplate thickness,increase the beam angle increases the length and width of the encased steel beams under cyclic loading can significantly affect the yield strength of the nodes,ultimate strength,stiffness and ductility of the nodes,the nodes to improve consumptionenergy and overall seismic performance,but its impact is limited;increasing impact on the overall performance of an upper beam is not large axial compression ratio.