| It is found that when the structure is damaged by earthquake,the proportion of non-structural component damage to the total loss has been increasing in recent years.Seismic support hanger is an important part of building electromechanical system,its aseismic performance directly affects the safety of electromechanical system.Due to the complex arrangement of electromechanical pipelines,the design of seismic support hanger is difficult,low efficiency and poor quality.At the same time,a single professional seismic support hanger is difficult to meet the seismic protection of complex nodes,and there are few studies on the seismic performance of integrated seismic support hanger.Therefore,this paper deepens the design of the electromechanical system based on BIM technology,and uses the finite element software ABAQUS to analyze and study the seismic performance of the integrated seismic support hanger,so as to provide a reference for the study of the seismic performance of the integrated seismic support hanger.The main research contents and achievements of this paper are as follows:(1)Based on BIM technology,the pipelines of mechanical and electrical systems are further designed,the traditional two-dimensional design drawings are turned over to generate three-dimensional visual models,and the unreasonable layout of professional pipelines is optimized,which makes the pipeline layout safe and reasonable and effectively improves the utilization rate of space.At the same time,the intelligent creation of integrated seismic support hanger model is realized based on BIM technology,which provides a calculation model for the finite element simulation of integrated seismic support hanger.(2)In order to explore the influence of different factors on the seismic performance of the integrated seismic support hanger,ABAQUS software is used to analyze the mechanical properties of the integrated seismic support hanger.The results show that: the results obtained by applying the load on the center of the transverse bar at the bottom of the structure are almost the same as those obtained by applying the load on both sides of the center of the transverse bar.Gravity load has certain influence on the seismic performance of the integrated seismic support hanger,which cannot be ignored.Compared with 30° and 60°,the seismic performance of the structure is better when the Angle of inclined bracing is 45°.The seismic performance of the integrated seismic support hanger is improved with the increasing of the cross section size.(3)ABAQUS software is used to carry out pseudo-static analysis of four different types of integrated seismic support hanger under low cycle reciprocating load.The results show that the load-bearing support hanger themselves have good energy dissipation capacity.Inclined braces can effectively improve the overall stiffness and energy dissipation capacity of load-bearing hangers,so that the overall bearing capacity and seismic performance are better.The more inclined braces,the better the overall performance.The transverse inclined brace mainly resists the transverse load and the longitudinal inclined brace mainly resists the longitudinal load.Compared with lateral or longitudinal integrated seismic support hanger,two-way integrated seismic support hanger have better energy dissipation performance. |
