Study On The Internal Force Variation Of Reinforced Concrete Structure Replacement Reinforcement And Pumping Process

In recent decades,China's construction industry has achieved rapid development and great achievements,at the same time our country's engineering quality problem is more severe,the proportion of security issues security issues is larger as a result of the insufficient strength of concrete due to different causes.Replacement of concrete reinforcement method is usually used in Concrete member of local concrete which has serious defects and it can fundamentally solve the problem of insufficient strength of concrete.Shear wall structure has big stiffness,good seismic performance advantages,in consequence it occupies the important position In the residential high-rise building.So the research of the internal force changes in displacement reinforcement of shear wall structure has a certain practical significance.Extraction column engineering is mainly used for building structure using function change,which need to increase the use of space in engineering.Study extraction column structure internal force in the process of change can provide certain experiment basis for similar projects.The construction process and the internal force changes of three engineering is studied in this article,and has carried on the finite element simulation of A project,then the simulation results and calculation results are analyzed.Firstly it makes a brief summary of engineering background Information,and introduces the main construction process and test plan.Then the internal force is calculated using PKPM series software,and the article compares with experimental data obtained from the text,and compares the difference of software simulation and test results.A engineering results show that:after eliminating the web plate wall of T wall it has large effect on axial force of the battlements of the flange,and it has smaller effecton axial force of other adjacent wall.B engineering results show that:When it is short wall limbs and closes to bigger wall limb stiffness is,eliminating the wall the axial force will be through the distribution of internal force redistribution to other adjacent walls,smaller structures internal force and displacement change.B engineering results show that:When only a layer of the upper structure,removing the lower column the displacement of the beam produced only 1.8 mm 1.8 mm while under the effect of arch beam displacement can reduce about 28%.this paper introduces the advantages and disadvantages of replacement reinforcement,and Segment displacement method and Free support reinforcement method is presented which can be used under the certain conditions which can make good use of T type shear wall of web and flange wall limb function,in order to reduce the problem of replacement reinforcement which Includes the complex of construction technology and high cost of reinforcement and the construction technical difficulty.