Simplified elastic design method using equivalent span ratio for two-way concrete composite slabs with precast ribbed panels
Simplified elastic design method using equivalent span ratio for two-way concrete composite slabs with precast ribbed panels
复制标题
预制肋板双向混凝土组合板等效跨度简化弹性设计方法
DOI：
10.1002/suco.201800097
复制
发表时间：
2019-02-01
影响因子：
3.2
通讯作者：
Zhang, Mingliang
中科院分区：
文献类型：
--
作者：
Huang, Hailin;Li, Jinhua;Zhang, Mingliang
分析了预制肋板混凝土双向组合板的受力性能在实际工程设计中存在的问题。考虑到结构正交异性的影响，采用荷载叠加法和正交异性板理论，推导了三边支承、一边固支的CSPRP在均布荷载作用下的挠度和弯矩计算公式。通过函数变换和等效跨比的应用，将钢筋混凝土面板等效为一个各向同性现浇双向板。提出了均布荷载作用下三边支承一边固支CSPRP的简化弹性设计方法。通过编程计算，得到了等效跨比为0.5 ~ 1.0，刚度比为0.5和2时，钢管混凝土路面加筋板的弹性系数。采用等效跨长比的线性插值方法，对一个三边支承、一边固支的CSPRP结构进行了计算验证。计算结果表明，该简化弹性设计方法是准确可行的。
This paper analyzes the existing problems in the practical engineering design, resulting from the mechanical properties of two-way composite concrete slabs with precast ribbed panels (CSPRPs). Due to the influence of the structurally orthotropic characteristic, the calculation formulas for the deflection and bending moments of a CSPRP with three supported edges and one clamped edge under a uniformly distributed load are solved using the load superposition method and the orthotropic plate theory. The CSPRP is calculated as an equivalent isotropic cast-in-place two-way slab using the transformation of function, and the application of the equivalent span ratio. The simplified elastic design method is presented for a CSPRP with three supported edges and one clamped edge under a uniformly distributed load. The elasticity coefficients of the CSPRP with the equivalent span ratio, ranging from 0.5 to 1.0 and stiffness ratios of 0.5 and 2 are obtained using the programming calculation. The linear interpolation method is applied using the equivalent span ratio of an isotropic cast-in-place two-way slab, and one example of a CSPRP with three supported edges and one clamped edge is given to verify. The results show that the simplified elastic design method is accurate and feasible.