摘要
对局部加大截面后构件等效刚度进行理论分析,提出考虑加固截面相对长度的构件等效刚度实用计算方法。经试验验证,该方法与有限元分析及试验结果均较为接近,可方便地应用于工程实践。同时指出,当加固截面与构件长度之比达到一定值后,增加加固截面相对长度对提高等效刚度和承载力的效果不再明显,加固设计时应予以考虑。
The equivalent stiffness of the reinforced members was analyzed theoretically,and a practical calculation method of the equivalent stiffness of the members considering the relative length of the reinforced cross-section was put forward. The experimental results showed that the method was close to the experimental results and could be easily applied to engineering practice. It was also pointed out that the effect of increasing the relative length of the reinforced cross-section on the equivalent stiffness and bearing capacity was no longer obvious when the ratio of the reinforced cross-section to the length of the member reached a certain value.
作者
成勃
姜丽萍
韦安磊
丁一旭
CHENG Bo;JIANG Liping;WEI Anlei;DING Yixu(Shandong Provincial Academy of Building Sciences, Jinan 250031, China;Jinan Gude Building Reinforcement Engineering Co. Ltd, Jinan 250031, China)
出处
《钢结构》
2018年第6期57-60,56,共5页
Steel Construction
基金
国家重点研发计划资助(2017YFC0806100)
关键词
增大截面法
加固截面相对长度
等效刚度
increased cross-section reinforcement method
relative length of reinforced cross-section
equivalent stiffness
