Research On The Safety Evaluation And Reinforcement Of Historical Building With Brick And Timber Structure In Shanghai

Shanghai is a city with 700 years of history and cultural city, since its inception since Daoguang 23 years(1843), by cultural, economic, religious and political influence of the West, Shanghai has retained a number of unique characteristics of historic buildings, wherein the number of the most historic building brick. The historic brick building in Shanghai Another beautiful landscape and city propaganda card, however, in recent years, with the rapid development of Shanghai this international metropolis, the protection of historic buildings and the modernization process both produces intense conflict, many in modern history preserved brick buildings with high historical value artificially in the Shanghai area and the demolition of dilapidated growing phenomenon. In a unique historical building structure, etc. According to the Shanghai region basis, and how these historic buildings safety performance assessment and reasonable repair reinforcement, and the transformation process is the protection of historic buildings in Shanghai area must face.This paper is divided into five chapters on safety assessment and restoration of historic buildings in Shanghai brick strengthening research. The first chapter on Shanghai brick historic building repair and reinforcement of the safety assessment of the significance, research status, research purposes and paper studies the basic contents were discussed. The second chapter on the general principles historic brick building repairing and protecting concrete implementation of the principles and practical detection methods commonly used in engineering research and analysis. Commonly used detection method focuses on aspects of historic buildings in masonry structural units, structural units of wood, concrete structural units, reinforced condition of existing buildings, the deformation of the building, foundation bearing capacity and other detailed study shows. The third chapter This chapter introduces the Shanghai brick historic building safety evaluation methods and evaluation steps, including the overall structure, the upper structure of foundation, site protection and seismic and other structures. Meanwhile, for the architectural style and features of Shanghai brick building where the historic district of masonry units, common repair method for reinforcing wood structural unit basis and foundation of these buildings essential constituent units, research and analysis. These safety evaluation methods and methods with a view to strengthening rehabilitated following the fifth chapter of the Shanghai Shen Yi green residential project in this case actually to provide the necessary information. The fourth chapter chapter introduces the main force material brick historic buildings- brick masonry and mechanical properties of wood. While the analysis of ideas and the basic theory of finite element were introduced, and the introduction in brackets brick wood structure, mortise and tenon column bottom position semi-rigid beam-column finite element nodes and spatial thinking, as in the following chapter practical engineering section in the finite element analysis provides a frame of reference. The fifth chapter mainly through engineering works of Shen Yi green residential area Dongjiadu safety testing assessment and restoration of this historic building reinforcement specific detailed analysis. Projects combining a summary of the method of detection and evaluation of the third chapter and the fourth chapter of the concrete reinforcement repair method of induction, the historic building and the use of structural design software and finite element software PKPM MADIS / GEN were analyzed and found safety problems existing in the structure, and propose solutions to these problems, with a view to the preservation and restoration of historic buildings subsequent reinforcement to provide a theoretical basis and practical reference. In the end of the paper we summarize the proposed conclusions and directions for further research are briefly discussed.