Study On Reliability Of Overall-improvement Technology Of Large-span Truss Structure

In the rapid development of the construction industry,the emergence of a variety of building materials,super high-rise,large space structure in the construction industry has been application slowly.in the 21 st century,large-span space structure has been unprecedented attention in the field of architecture,meanwhile it is a new stage becomes large-span space structure to the prosperity and development,and a variety of construction techniques break out limitations,combined with modern technology,the quality and quantity of,efficiently complete the job of new period.In many contemporary large-span space structures,grid structure with its novel flexible form,elegant shape,superior overall performance highlights the pivotal position in space structure,has developed rapidly in the past thirty years.The rod system of grid structure is in accordance with certain rules of multiple nodes in the super static structure are combined for the long-span building system,the reasonable application in its structural characteristics,and the most widely used.With the grid engineering construction scale of the increasingly large,complex system,novel form,construction difficulty,therefore,in a large-span truss structure installation construction process the use of new technology,appropriate new methods,new technology,research on upgrading the reliability in the process,to protect people's lives and property safety,which is of practical significance for engineering construction quality.First of all,combined with the general situation of the engineering of grid installation schemes are preferred selection,focusing on the introduction of hydraulic lifting technology,computer synchronous control technology and the principle of work,finally for the engineering characteristics of custom the west 6 refers to the corridor of a space truss as a whole to enhance the special construction scheme.Then through the finite element software,the force of the grid structure in the process of the whole lifting under different conditions is simulated and analyzed in detail.To enhance the reliability of the device structure were analysis,using finite element software to improve tooling under the design load stability checking,and selected the typical truss column to enhance anti force analysis of bearing capacity of.The Guangzhou International Airport expansion project of steel structure project based on and the project terminal 6 West refers to the gallery area a Long-span Grid Structure of the whole lifting process of the in-depth research and analysis,aims to summarize large space grid structure to enhance the construction process,to ensurethe safety of construction,combined with finite element analysis software on the overall perfect provide the basis,installation,safety,and security to provide technical support and guarantee.