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·1342 工程科学学报,第38卷,第9期 (3)立柱受载水平不变时,墙板承载能力随着墙 [5]Lee Y K,Miller H T.Axial strength determination for gypsum- 板厚度和立柱截面尺寸的增加而提高,随着墙板上加 sheathed,cold-formed steel wall stud composite panels.J Struct 劲肋间距或墙板宽度的减小而提高:立柱受载水平不 Eng,2001,127(6):608 6]Paulo R M F,Teixeira-Dias F,Valente R A F.Numerical simula- 变时,立柱支撑间距减小,立柱稳定性提高,墙板承载 tion of aluminium stiffened panels subjected to axial compression: 能力随之提高 sensitivity analyses to initial geometrical imperfections and material (4)墙板破坏形式取决于立柱受载水平,将受剪 properties.Thin-tcalled Struct,2013,62:65 破坏和剪压破坏分界点记为Pa=αP,·对计算数据 ] Zhu Y J,Zhang Y C,Liu X L,et al.Several factors affecting the 的归纳整理表明:当四边单纯受剪简支板的弹性屈曲 static behavior of diaphragm-braced columns.J Harbin Unie Civ 临界应力T,n≤50MPa时,a可取0.6:当Tn>50 Eng Archit,1998,31(5):20 (朱勇军,张耀春,刘锡良,等.影响蒙皮支撑柱静力性能的 MPa时,a可取0.4.由于在受剪破坏阶段,墙板承载 若干因素.哈尔滨建筑大学学报,1998,31(5):20) 力随立柱受载水平降低很小,因此可以认为当P。:< [8]Zhu Y J,Zhang Y C,Liu X L.Static analysis of diaphragm P时,墙板承载力不受其发挥受力蒙皮作用的影响, braced columns.J Buil Struct,1999,20(6):32 不考虑其承载力降低 (朱勇军,张耀春,刘锡良·蒙皮支撑柱的静力性能分析.建 (5)对墙板承载能力计算结果的归纳分析表明, 筑结构学报,1999,20(6):32) 即便当立柱受载水平很高时,在考虑初始缺陷和材料 Zhu Y J.Zhang Y C,Liu X L.Several factors affecting the static 非线性的情况下,墙板承载力P,值仍会高于单边均 behavior of diaphragm braced beams.Tianjin Univ,1999,32 (2):163 匀受压四边简支板的屈曲临界应力的弹性理论解答, (朱勇军,张耀春,刘锡良.影响蒙皮支撑梁静力性能的若干 因此在立柱受载水平很高的情况下可以采用该理论解 因素.天津大学学报,1999,32(2):163) 来保守计算墙板的承载能力 [10]Song B,Wang L,Luo X L,et al.Buckling behavior of thin steel sheets with ribbed stiffeners in selective catalytic reactor.J Unin Sci Technol Beijing,2010,32(8)1094 参考文献 (宋波,王利,罗晓玲,等。大型反应器加劲薄钢板结构屈曲 [Davies J M,Bryan E R.Manual of Stressed Skin Diaphragm De- 性能.北京科技大学学报,2010,32(8):1094) sign.London:Granada Publishing,1982 [11]Wang D F,Wang YQ,Shi YJ,et al.Imperfection sensitivity of 2]Wright H D,Hossain K M A.In-plane shear behavior of profiled wall-column structural system electrostatic precipitator casing steel sheeting.Thin-talled Struct,1997,29(1-4):79 Eng Mech,2012,29(5):78 Lucas R M,Al-Bermani F GA,Kitipornchai S.Modelling of (王登峰,王元清,石永久,等.电除尘器壳体墙板一立柱结 cold-formed purlin-sheeting systems:Part 1.Full model. 构体系缺陷敏感性研究.工程力学,2012,29(5):78) Thin-tcalled Struct,1997,27(3):223 [2]Chen J.Stability of Steel Structures Theory and Design.6th Ed. 4]Lucas R M,Al-Bermani F G A,Kitipornchai S.Modelling of Beijing:Science Press,2001 cold-formed purlin-sheeting systems:Part 2.simplified model. (陈骥.钢结构稳定理论与设计.6版.北京:科学出版社, Thin-alled Struct,1997,27(4):263 2001)工程科学学报,第 38 卷,第 9 期 ( 3) 立柱受载水平不变时,墙板承载能力随着墙 板厚度和立柱截面尺寸的增加而提高,随着墙板上加 劲肋间距或墙板宽度的减小而提高; 立柱受载水平不 变时,立柱支撑间距减小,立柱稳定性提高,墙板承载 能力随之提高. ( 4) 墙板破坏形式取决于立柱受载水平,将受剪 破坏和剪压破坏分界点记为 Pc,cr = αPcy . 对计算数据 的归纳整理表明: 当四边单纯受剪简支板的弹性屈曲 临界应力 τcr,XY ≤50 MPa 时,α 可取 0. 6; 当 τcr,XY > 50 MPa 时,α 可取 0. 4. 由于在受剪破坏阶段,墙板承载 力随立柱受载水平降低很小,因此可以认为当 Pc,cr < αPcy时,墙板承载力不受其发挥受力蒙皮作用的影响, 不考虑其承载力降低. ( 5) 对墙板承载能力计算结果的归纳分析表明, 即便当立柱受载水平很高时,在考虑初始缺陷和材料 非线性的情况下,墙板承载力 Pw,cr值仍会高于单边均 匀受压四边简支板的屈曲临界应力的弹性理论解答, 因此在立柱受载水平很高的情况下可以采用该理论解 来保守计算墙板的承载能力. 参 考 文 献 [1] Davies J M,Bryan E R. Manual of Stressed Skin Diaphragm De￾sign. London: Granada Publishing,1982 [2] Wright H D,Hossain K M A. In-plane shear behavior of profiled steel sheeting. Thin-walled Struct,1997,29( 1-4) : 79 [3] Lucas R M,Al-Bermani F G A,Kitipornchai S. Modelling of cold-formed purlin-sheeting systems: Part 1. Full model. Thin-walled Struct,1997,27( 3) : 223 [4] Lucas R M,Al-Bermani F G A,Kitipornchai S. Modelling of cold-formed purlin-sheeting systems: Part 2. simplified model. Thin-walled Struct,1997,27( 4) : 263 [5] Lee Y K,Miller H T. Axial strength determination for gypsum￾sheathed,cold-formed steel wall stud composite panels. J Struct Eng,2001,127( 6) : 608 [6] Paulo R M F,Teixeira-Dias F,Valente R A F. Numerical simula￾tion of aluminium stiffened panels subjected to axial compression: sensitivity analyses to initial geometrical imperfections and material properties. Thin-walled Struct,2013,62: 65 [7] Zhu Y J,Zhang Y C,Liu X L,et al. Several factors affecting the static behavior of diaphragm-braced columns. J Harbin Univ Civ Eng Archit,1998,31( 5) : 20 ( 朱勇军,张耀春,刘锡良,等. 影响蒙皮支撑柱静力性能的 若干因素. 哈尔滨建筑大学学报,1998,31( 5) : 20) [8] Zhu Y J,Zhang Y C,Liu X L. Static analysis of diaphragm braced columns. J Buil Struct,1999,20( 6) : 32 ( 朱勇军,张耀春,刘锡良. 蒙皮支撑柱的静力性能分析. 建 筑结构学报,1999,20( 6) : 32) [9] Zhu Y J,Zhang Y C,Liu X L. Several factors affecting the static behavior of diaphragm braced beams. J Tianjin Univ,1999,32 ( 2) : 163 ( 朱勇军,张耀春,刘锡良. 影响蒙皮支撑梁静力性能的若干 因素. 天津大学学报,1999,32( 2) : 163) [10] Song B,Wang L,Luo X L,et al. Buckling behavior of thin steel sheets with ribbed stiffeners in selective catalytic reactor. J Univ Sci Technol Beijing,2010,32( 8) : 1094 ( 宋波,王利,罗晓玲,等. 大型反应器加劲薄钢板结构屈曲 性能. 北京科技大学学报,2010,32( 8) : 1094) [11] Wang D F,Wang Y Q,Shi Y J,et al. Imperfection sensitivity of wall-column structural system electrostatic precipitator casing. Eng Mech,2012,29( 5) : 78 ( 王登峰,王元清,石永久,等. 电除尘器壳体墙板--立柱结 构体系缺陷敏感性研究. 工程力学,2012,29( 5) : 78) [12] Chen J. Stability of Steel Structures Theory and Design. 6th Ed. Beijing: Science Press,2001 ( 陈骥. 钢结构稳定理论与设计. 6 版. 北京: 科学出版社, 2001) ·1342·
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