摘要
分析了用体外预应力方法加固框架梁时梁的受力状态 ,指出由于端部侧向约束构件的影响 ,将使加固效果受到影响。运用结构力学的D值方法 ,近似把结构看作弹性体 ,分析了框架梁实际的预压力计算方法 ,并进一步分析了加固后梁的承载能力计算方法 ,推导出了相应的计算公式。
The state of section of frame beam strengthened with external prestress tendon is analyzed and pointed out that the effect will be reduced because of the lateral restriction. With the theory of D-value, to consider the structure as an elastomer, computing method of the press force on beam′s section is addressed. Finally, the carrying capacity of frame beam strengthened with prestress tendon is further analyzed, and relevant formula is deduced.
出处
《工业建筑》
CSCD
北大核心
2005年第4期35-37,17,共4页
Industrial Construction
