Study On Organic Unionization For Seismic Strengthening And Energy-saving Reconstruction In Available Masonry Building Based On Thermal Insulation Glazed Hollow Bead Concrete

The construction industry in China has been into a double development period of construction and reconstruction. Large numbers of masonry structure buildings which don’t meet the requirements of seismic fortification need reinforce of seismic appraisal, especially after the earthquake of Wenchuan in2008. Meanwhile, there are about40billion square meters of buildings at present in China, more than95%of which are high-energy consumption buildings. Most masonry structures exist in medium and small towns, built ages ago, which neither satisfy the needs of current seismic code, nor meet the requirements of energy-saving constructions at Chinese present stage. Some of the brick masonry buildings which were built in the1970s and1980s have a great risk of potential security hazard and waste too much energy for lack of seismic and energy-saving measures.Under the background that the government are taking measures to reinforce primary and middle school school buildings and reconstruct current buildings, this paper mainly focus on the problems of masonry structure constructions built in1970s&1980s, such as the relatively weak wall strength, poor overall shock resistance, and high energy consumption and so on. This paper studies glazed hollow beads insulation concrete on seismic reinforcement and energy-saving reconstruction(The materials are offered by the Taiyuan SIKEDA Science and Technology Development Company Limited). This article mainly works on the following researches:(1) Sum up earthquake damage morphology of present masonry structure built in1970s and1980s from the aspects of masonry structure design and the angle of earthquake damage.(2) Taking the reinforcement engineering of primary and middle school buildings in Shanxi province of2010as example, select the most representative single-sided corridor teaching building from numerous buildings to do research models.(3) On the basis of the identification of the original seismic structure and diagnosis of energy-saving, use concrete wall reinforcement and determine wall thickness and structural measures according to requirements of the overall seismic improvement of the structure and building energy efficiency.(4) Analyze and evaluate seismic capacity of the structure before and after reconstruction according to seismic capacity index floors and floor seismic capacity index. Compare and analyze the seismic capacity of reinforced glass beads of insulation concrete and ordinary concrete wall.(5) Analyze the model before and after the transformation of a single room and the overall building energy consumption with DeST-c thermal analysis software. Quantify the transformation of building energy rate by comparing the number of temperature hours in natural room, hot and cold load, and annual energy consumption of single-classroom.