摘要
为弥补设计规范关于组合桁架翼缘板的空白,采用有限单元法考虑剪力滞后效应,对翼缘板有效宽度影响因素进行了参数化分析,参数包括混凝土板厚度、剪力连接程度、宽跨比和高跨比.参数分析结果表明:混凝土板厚和剪力连接程度对混凝土翼板有效宽度系数影响很小,可忽略不计;宽跨比和高跨比对混凝土翼板有效宽度系数影响显著,翼板有效宽度应考虑其影响.根据参数分析结果,拟合出翼板有效宽度计算公式,具有较强的工程实用价值.
In order to fill the blank of the specifications in the effective width of flange slab, the parametric analysis is presented using FEM in consideration of the effect of shear lag, including parameters such as thickness of flange slab, degree of shear connection, width-span ratio and height-span ratio. The calculation results show that the change of thickness of flange slab and shear connection degree have weak influence to the effective width, which are negligible, and the change of width-span ratio and height-span ratio have great influence to the effective width, which must be considered. The fitting formula of the effective width of flange slab is proposed on the basis of results of parametric analysis, which has high practical application value.
出处
《辽宁工程技术大学学报（自然科学版）》
CAS
北大核心
2014年第9期1256-1259,共4页
Journal of Liaoning Technical University (Natural Science)
基金
浙江省建设科研基金资助项目(2012095)
浙江省自然科学基金资助项目(Y11000387)
