The Seismic Reinforcement Design Optimization And Effect Evaluation Of Existing Brick-concrete Structure

The brick-concrete structure is one of several major housing structures, and it existswidely in the non-first-tier cities, towns and rural areas abound the China. Due to the lack ofseismic safety of a large number of brick-concrete structure building and the need ofreinforcement, there is a more and more huge market demand with the economy developing.How to do seismic reinforcement in low cost for existing brick-concrete structure and ensureits safety and reliability is an urgent need task.In the article, the test results analysis and disease summarize, reinforcement designoptimization and evaluation based on PKPM, the earthquake dynamics analysis and seismicperformance evaluation of hybrid system based on ANSYS, as well as brick and concretestructure aspects of the anti-collapse performance evaluation all were studied.In the previous work:1good choice of the typical structure analysis objects;2strengthenthe detection and identification;3strengthen diseases summary;4carefully detect and identifya brick-concrete structure hospital house;5optimize reinforcement focus.In the main work,firstly seismic safety checking was done by using masonryreinforcement module in PKPM (2010Edition) software.Secondly a medical building wasevaluated and designed for seismic reinforcement and the reinforcement design of L-shapedroof room, which consists of the stairwell and elevator well, was optimized and analyzed onreinforced structural performance assessment and economic evaluation. Thirdly,to study theseismic safety and reinforcement feasibility of different treatment programs, four conditionsof connect, disconnect then unreinforced, disconnect then reinforcement and the new seismicdesign structure were all studied based on PKPM. Fourthly, the brick structure numericalsimulation method using ANSYS software was studied to build a brick structure model of themixed system, then the response of the hybrid system building in the earthquake dynamicaction, which has a top-level space frame in the ANSYS3D model, was calculated, andseismic performance was evaluated. Finally, according to the theory of the robustness, performance evaluation programabout resistance to the collapse of brick-concrete structure was studied.