Dissertation > Industrial Technology > Building Science > Building structure > Metal structures > Steel

Anti-Seismic Research on the Technology of Adding Steel Storeys on the Top of Frame-Shear Wall Structure

Author WanSongLin
Tutor YangXiaoMing
School Qingdao Technological University
Course Structural Engineering
Keywords Steel structure directly plus layer Wall structure Overall damping ratio Seismic performance Response spectrum method Seismic energy dissipation
Type Master's thesis
Year 2009
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Directly on the concrete structure due to the steel structure , light weight, seismic performance , plus steel structures are increasingly being applied to practical engineering . The current seismic design specification no clear provisions on the added layer transformation after the formation of the hybrid structure system , and research at home and abroad , mainly in the specific instance of Engineering as the background , there are some limitations . In view of the above , the papers in the reinforced concrete frame . Seismically Retrofitting transformation shear structure problems encountered as a starting point , combined with the different parameters of the calculation model , using finite element analysis program to the overall structure of the the added layer structure system seismic performance analysis , looking for a general rule, for future reference the designer . The main contents include: ( 1 ) frame - shear structure plus layer Seismic response analysis: the added layer design of the renovation project , due to the upper and lower structural materials of different qualitative structure overall damping ratio is set to a value is not reasonable , the structure of the overall damping ratio of the overall damping ratio calculated strain energy ( energy law ) , the response spectrum analysis of the structure of the added layer and more time in the case of earthquakes analysis . (2 ) the impact of the seismic performance of the frame - shear wall structure plus layer system factors analysis : from layers of steel structure construction , different forms support , support different layout position , the stiffness of the column foot factors start plus layer structure of a comprehensive analysis of the overall seismic performance development and its design method for the renovation project of the superstructure, adding steel layer to provide a reference . ( 3) the study of the seismic performance of energy consumption of eccentric supporting the steel structure of the added layer : eccentrically braced steel plus layer system strong earthquakes have better ductility and energy dissipation capacity , is a very suitable seismic structure of strong earthquakes in the region system has great practical significance .

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