Existing high-rise buildings with regular exceeding limits.In response to the situation of exceeding the limit,the original frame structure was changed to a frame shear wall structure by adding shear walls,and after adding corridor measures,the original structure was transformed into a high-rise building with height and regularity not exceeding the limit.The elastoplastic time-history analysis of the reinforced structure,fortification against earthquakes and rare earthquakes are also carried out.The results indicate that after the original frame structure was changed to a frame shear wall structure,the lateral stiffness of the structure is increased by about 60%,the bearing capacity level is increased by about 40%,the stress and seismic grade of the frame column are reduced,and the reinforcement work of the frame column is reduced by about 80%.All the indicators of the structure meet the requirements of the code,and achieve the seismic fortification requirements of"small earthquake is not bad,medium earthquake can be repaired,and large earthquake cannot be prevented".The technical measures adopted in this project are reasonable,effective,safe and reliable,the economic cost of reinforcement and transformation is reduced,and the comprehensive benefits are remarkable,it can provide reference for similar projects in the future.
关键词
城市更新/加固改造/超限高层建筑/改变结构体系/弹塑性分析
Key words
urban regeneration/reinforcementand reconstruction/super high-rise building/change the structure system/elastoplastic analysis
维普
万方数据