Research on integration of earthquake isolation and jacking for century-old cultural relic building Country Hospital
In the process of urban renewal,cultural relic buildings are given a new mission as historical preservation,but seismic reinforcement has a great impact on the protection of cultural relic buildings due to the wide range of reinforcement involved in the renovation.For cultural relics buildings located in high-intensity earthquake areas or with high seismic safety requirements,the contradiction between building protection and seismic safety should be reasonably solved.Country Hospital is a cultural relic protected building in Shanghai.It has been used as a medical place since its construction,so it belongs to the category of key earthquake-resistant building.But the original structure has many adverse conditions such as irregular shape,structural transfer and serious shortage of earthquake resistance.Therefore,on the basis of cultural relics protection,several key technologies were introduced,such as the establishment of seismic performance objectives,the comparison and selection of seismic reinforcement schemes,the seismic isolation arrangement and effect evaluation on soft ground,the safety control of structural jacking stage,and the combination of seismic isolation and jacking construction.The protection requirements of seismic safety and minimal intervention are realized by means of integrated seismic isolation and jacking and performance-based design,which has reference function for the sustainable utilization and seismic toughness of cultural relics buildings.
cultural relics buildingseismic performancejacking constructioncombined isolation bearingseismic reinforcement
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