【摘要】 汶川地震之后为了提高中小学校舍的抗震性能,各地对中小学校舍实施了抗震鉴定及加固工作.为了有效评价框架结构教学楼结构的安全性,以常德市某中学框架结构教学楼抗震鉴定及加固为例,进行原始资料调查,现场检测、结构计算分析以及结构抗震性能评定,并在综合评定的基础上提出了加固处理方案.加固后的结构基本达到重点设防类抗震设防标准,结构整体性及承载力得到显著提高,结构的安全状况得到改善.更多还原

【Abstract】 After the Wenchuan earthquake,the seismic appraisal and strengthening were carried out to improve the aseismatic performance of primary and middle schools buildings nationalwide.In order to appraise the safety of a teaching building’s frame structure,many works has been taken in a middle school of Changde.These works include collecting firsthand information,on-site tests,computational analysis and the appraisal of seismic performance.Based on these,a reinforcement scheme is presented.And the structure is basically up to the anti-seismic standard after being strengthened.The integrality and the bearing capacity are enhanced significantly and the safety condition is also improved.更多还原