Discussion on performance-based strengthen design scheme of an overrun masonry structure
A masonry structure was designed for office space.This structure needed to be retrofitted,because the building function would be changed.The seismic fortification level has been raised to key defense category.There are some difficulties in renovation,such as irregular plane,overrun height and part bearing wall demolition.In the retrofit and strengthen design process,the performance-based strengthen design of masonry structure was presented.It included two parts.One was the checking of bearing capacity of members and index of compound seismic capability under frequent earthquake.The other was the performance-based structural design under moderate and rare earthquake.Based on the previous research work,the index of performance-based design to masonry structure strengthened by concrete wall were presented.The analysis models which were established by SAP2000 were calculated and analyzed.By the analysis results,the seismic capability of the reinforced structure can be vastly improved.The various indicators meet the requirement of the design codes.
万方数据
维普
