Research On The Building Resistance Of Earthquake Site With Light Steel Frame Built In

Surviving site construction after the earthquake is of great scientific and social value,reinforcing the protection of the earthquake ruins has the very vital significance.We put forward this subject on the basis of the earthquake ruins status quo in old beichuan county,pointed out that the existing site of reinforcing protection problems and deficiencies through a lot of research work.Basing on the ruins of the earthquake disaster characteristics and principles of site protection reinforcement,we proposed the built-in light steel frame reinforced method through strengthening methods comparison analysis.In order to prove the applicability of the scheme,we took the mountain elementary school sites as the research object,evaluated the earthquake damage degree on the basis of analysis of the seismic response simulation,mastered the basic site structure stress studied the design of reinforcement scheme,and verifide the reinforcement effect,the main research results are as follows:(1)Through on-the-spot investigation,we showed the typical earthquake ruins of houses collapsed disaster phenomena and the protection status quo in beichuan county objectively,analysed its characteristics of all kinds of building structure damage,and summarized the current lack of earthquake ruins protection and need of reinforcement in the research,which facilitates the site construction effectively preserved for a long time.(2)Earthquake ruins buildings belong to special group,and the reinforcement is different from general building aseismic reinforcement,because of following the basic principles of the cultural relics protection,built-in light steel frame reinforced scheme can keep well site,and conform to the fundamental principles of site protection,which is suitable for the earthquake ruins construction of strengthening protection,and provides reference for the similar projects in the future.(3)Engineering practice proved that the numerical simulation method is to obtain a rapid economic structure of internal and external seismic damage degree,but if the reinforcement does not consider its bearing capacity of sites although badly damaged,it can result in unrealistically reinforcement.In order to grasping the ruins basic stress after the earthquake,ANSYS software is adopted to establish the original structure model of earthquake damage simulation and analyze the site structure seismic damage degree.At last,we discussed evaluation of the residual bearing capacity,which provides the basis for subsequent implementation of the strengthening plan.(4)Based on the above research contents,we researched the reinforce design combining the actual site building after an earthquake damage,in order to ensuring the built-in steel frame can resist the site structure static load,and seismic action in general.For the verification of the reinforcement effect,we took the building site logistics office built-in steel frame as the research object based on Midas/civil analysis platform,and proposed.the structure optimization design method after calculation and analysis of its bearing capacity and often met earthquake under the action of collapse resistance.