工程科学学报，第38卷，第9期：1335-1342,2016年9月 Chinese Journal of Engineering,Vol.38,No.9:1335-1342,September 2016 D0l:10.13374/j.issn2095-9389.2016.09.020:http://journals.ustb.edu.cn 考虑受力蒙皮作用的除尘器壳体墙板的承载性能 潘立程”，邢凯丽”，钱海峰”，王元清》，邹昀”，王登峰)区 1)江南大学环境与土木工程学院，无锡2141222)清华大学土木工程系，北京100086 ☒通信作者，E-mail:happywdf(@126.com 摘要采用非线性有限元方法研究除尘器壳体承受板顶竖向均布荷载作用的墙板发挥受力蒙皮作用时的破坏形式和承载 能力，分析墙板厚度、墙板宽度、加劲肋间距、立柱横向支撑间距、立柱截面尺寸等因素对墙板承载能力的影响.结果表明：立 柱受载水平较低时，墙板发生受剪屈服破坏：立柱受载水平中等时，墙板同时发生受压和受剪屈服破坏：立柱受载水平较高 时，墙板发生受压屈服破坏.在同等立柱受载水平情况时，墙板承载能力随着墙板厚度增加、墙板宽度减小、加劲肋间距减小 或者立柱支撑间距减小而增大·立柱截面尺寸增大使得立柱刚度增大时，立柱稳定性提高，墙板承载力增大. 关键词除尘器：壳体；结构体系：承载能力：有限元法 分类号TU391 Bearing performance of wallboards in an electrostatic precipitator casing in consideration of stressed skin effect PAN Li-cheng",XING Kai-i,QIAN Hai-feng,WANG Yuan-qing,ZOU Yun,WANG Dengfeng 1)School of Environmental and Civil Engineering,Jiangnan University,Wuxi 214122,China 2)Department of Civil Engineering,Tsinghua University,Beijing 100086,China Corresponding author,E-mail:happywdf@126.com ABSTRACT For a wallboard in an electrostatic precipitator casing playing stressed skin effect under vertical uniform pressure on the top,the failure mode and bearing capacity were investigated by nonlinear finite element method.The influences of structural factors such as wall thickness,wall width,stiffener spacing,column brace spacing and column section size on the wallboard bearing capacity were analyzed.The results show that,shear yielding failure of the wallboard occurs when the stressed level of the column is compara- tively lower.Shear yielding failure and compression yielding failure occur simultaneously when the stressed level of the column is medi- um.Compression yielding failure occurs when the stressed level of the column is comparatively higher.Under the equal column stressed level,the bearing capacity of the wallboard increases with the increase of wall thickness and with the decrease of wall width, stiffener spacing or column brace spacing.The bearing capacity of the wall increases as the column stiffness is increased resulting from the enlargement of column section and its stability increases. KEY WORDS electrostatic precipitators:casings;structure systems:bearing capacity:finite element method 火电、治金、化工和建材等行业的生产过程中产生 中最重要的工艺部件，其围护结构一般采用墙板一立 大量烟尘颗粒，造成严重的大气环境污染.除尘器是 柱结构体系，结构形式和荷载情况都较为复杂.本文 广泛应用于这些行业中用以消烟除尘的重要环保装 研究的壳体墙板为加劲钢板，骨架立柱为H型钢柱， 备.目前对于除尘器的研究主要集中于烟尘收集的工 两者连续焊接连接，形成受力整体。当结构体系承担 艺，而对其支承结构的研究较为欠缺。壳体是除尘器 竖向荷载时，立柱是主要受力骨架。墙板发挥受力蒙 收稿日期：2015-12-30 基金项目：国家自然科学基金资助项目(51308258)：江苏省自然科学基金资助项目(BK20130149)工程科学学报，第 38 卷，第 9 期: 1335--1342，2016 年 9 月 Chinese Journal of Engineering，Vol． 38，No． 9: 1335--1342，September 2016 DOI: 10． 13374 /j． issn2095--9389． 2016． 09． 020; http: / /journals． ustb． edu． cn 考虑受力蒙皮作用的除尘器壳体墙板的承载性能 潘立程1) ，邢凯丽1) ，钱海峰1) ，王元清2) ，邹 昀1) ，王登峰1)  1) 江南大学环境与土木工程学院，无锡 214122 2) 清华大学土木工程系，北京 100086  通信作者，E-mail: happywdf@ 126． com 摘 要 采用非线性有限元方法研究除尘器壳体承受板顶竖向均布荷载作用的墙板发挥受力蒙皮作用时的破坏形式和承载 能力，分析墙板厚度、墙板宽度、加劲肋间距、立柱横向支撑间距、立柱截面尺寸等因素对墙板承载能力的影响． 结果表明: 立 柱受载水平较低时，墙板发生受剪屈服破坏; 立柱受载水平中等时，墙板同时发生受压和受剪屈服破坏; 立柱受载水平较高 时，墙板发生受压屈服破坏． 在同等立柱受载水平情况时，墙板承载能力随着墙板厚度增加、墙板宽度减小、加劲肋间距减小 或者立柱支撑间距减小而增大． 立柱截面尺寸增大使得立柱刚度增大时，立柱稳定性提高，墙板承载力增大． 关键词 除尘器; 壳体; 结构体系; 承载能力; 有限元法 分类号 TU391 Bearing performance of wallboards in an electrostatic precipitator casing in consideration of stressed skin effect PAN Li-cheng1) ，XING Kai-li 1) ，QIAN Hai-feng1) ，WANG Yuan-qing2) ，ZOU Yun1) ，WANG Deng-feng1)  1) School of Environmental and Civil Engineering，Jiangnan University，Wuxi 214122，China 2) Department of Civil Engineering，Tsinghua University，Beijing 100086，China  Corresponding author，E-mail: happywdf@ 126． com ABSTＲACT For a wallboard in an electrostatic precipitator casing playing stressed skin effect under vertical uniform pressure on the top，the failure mode and bearing capacity were investigated by nonlinear finite element method． The influences of structural factors such as wall thickness，wall width，stiffener spacing，column brace spacing and column section size on the wallboard bearing capacity were analyzed． The results show that，shear yielding failure of the wallboard occurs when the stressed level of the column is compara￾tively lower． Shear yielding failure and compression yielding failure occur simultaneously when the stressed level of the column is medi￾um． Compression yielding failure occurs when the stressed level of the column is comparatively higher． Under the equal column stressed level，the bearing capacity of the wallboard increases with the increase of wall thickness and with the decrease of wall width， stiffener spacing or column brace spacing． The bearing capacity of the wall increases as the column stiffness is increased resulting from the enlargement of column section and its stability increases． KEY WOＲDS electrostatic precipitators; casings; structure systems; bearing capacity; finite element method 收稿日期: 2015--12--30 基金项目: 国家自然科学基金资助项目( 51308258) ; 江苏省自然科学基金资助项目( BK20130149) 火电、冶金、化工和建材等行业的生产过程中产生 大量烟尘颗粒，造成严重的大气环境污染． 除尘器是 广泛应用于这些行业中用以消烟除尘的重要环保装 备． 目前对于除尘器的研究主要集中于烟尘收集的工 艺，而对其支承结构的研究较为欠缺． 壳体是除尘器 中最重要的工艺部件，其围护结构一般采用墙板--立 柱结构体系，结构形式和荷载情况都较为复杂． 本文 研究的壳体墙板为加劲钢板，骨架立柱为 H 型钢柱， 两者连续焊接连接，形成受力整体． 当结构体系承担 竖向荷载时，立柱是主要受力骨架． 墙板发挥受力蒙