Study On Strengthening Technology Of Spatial Grid Structure Of Water Conservancy Building

The space grid structure with the development of our economy and get the rapid growth of also because of its convenient assembly,lightweight,aesthetically pleasing and is widely used in civil and industrial buildings.But since the late early grid structure due to the design,construction and maintenance in the process of the steel is made no more protective measures,cause the grid bar began to appear all kinds of structural failure problems,to dismantle to build cost manpower and material resources and financial resources.So for this kind of grid structure maintenance has important significance.There are research on space truss structure reinforcement part is mainly on the premise of structural safety design research,another part is for the finite element model of coMParative analysis before and after reinforcement,on the whole structure after reinforcement mechanics performance were studied.But most traditional research methods are based on the contrast analysis of the single scale,the lack of detail analysis of the truss unit structure analysis,while pure entity unit model,the simulated huge effort of the whole structure model and the computer asked too much.Based on this,this paper mainly to carry out the space truss structure of multi-scale modeling analysis and reinforcement research.This paper is divided into four chapters:The first chapter discusses the strengthening technology progress at home and abroad and the reinforcement method of commonly used,and the various methods of reinforcement principles discussed in this paper,combining the grid structure’s accident,accident prevention countermeasures;The second chapter discusses the basic theory and development of multi-scale finite element method,using the theory of software and the method of combining the coMParative superiority and inferiority of grid structure in all kinds of strengthening methods.The third chapter on water conservancy building roof structure of bonded steel reinforcement method as an example,a macro model structure and micro ball joint model with simulation,using multi-scale model analysis of the structure properties of bonded steel reinforcement,discusses the structure of reinforced bar can replace the method of numerical simulation in the plastic stage;The fourth chapter in theory study at the same time,the existing of stick steel strengthening construction method is put forward some innovative reinforcement measures,can be safely and effectively used in grid structure reinforcement.