大跨度正交正放与正交斜放空腹夹层板力学性能对比分析  

Comparison and Analysis of Mechanical Properties of Vierendeel Sandwich Plate with Large-span Orthogonal Normal and Oblique Placement

作　　者：胡冰雨 马克俭[1,2] 卢亚琴 HU Bing-yu;MA Ke-jian;LU Ya-qin(Research Center of Spatial Structure of,Guizhou University,Guiyang 550025,China;Key Laboratory of Structural of Guizhou Province,Guiyang 550025,China)

机构地区：[1]贵州大学空间结构研究中心,贵阳550025 [2]贵州省结构工程重点实验室,贵阳550025

出　　处：《科学技术与工程》2023年第24期10445-10453,共9页Science Technology and Engineering

基　　金：贵州大学引进人才科研项目(贵大人基合字(2016)16号)。

摘　　要：为对比正交正放与正交斜放空腹夹层板性能的差异,基于ANSYS、SAP2000建立大量模型,分析边梁截面尺寸、表层板厚度、上肋和下肋截面尺寸、结构长跨比对两者刚度的影响,层高对结构频率的影响以及基于变换荷载路径法对两者的抗连续性倒塌性能分析。结果表明:边梁截面尺寸与混凝土表层板厚度的增加可以明显地提升结构刚度;上、下肋截面高度为主要影响结构刚度的参数且截面尺寸增大可以提升结构刚度;结构的长跨比大于1.5时,选用正交斜放的放置形式更好;高层建筑中正交斜放空腹夹层板的自振频率更具优势;正交斜放空腹夹层板的抗连续性倒塌能力更优秀;正交斜放空腹夹层板的刚度从多个方面优于正交正放空腹夹层板。To compare the performance difference between orthogonal normal and orthogonal oblique vierendeel sandwich plate,a large number of models were established based on ANSYS and MADAS to analyze the influence of the section size of side beam,the thickness of surface plate,the section size of upper and lower ribs,the length-span ratio,the influence of storey height on the structure frequency,and the anti-continuous collapse performance analysis of both based on alternate path method.The results show that the increase of the section size of side beam and the thickness of concrete surface slab can obviously improve the structure stiffness.The upper and lower rib section height are the main parameters affecting the structural stiffness and the increase of the section size can improve the structural stiffness.When the length span ratio of the structure is greater than 1.5,it is better to choose the orthogonal inclined placement form.The natural vibration frequency of orthogonal inclined hollow sandwich plate in high-rise building is more advantageous.The continuous collapse resistance of orthogonally inclined vierendeel sandwich plate is better.The rigidity of orthogonally inclined vierendeel sandwich plate is superior to orthogonally inclined vierendeel sandwich plate in many aspects.

关 键 词：空腹夹层板 理论分析方法 刚度分析 自振频率 抗连续性倒塌 

分 类 号：TU311[建筑科学—结构工程]