腹板开孔的钢-混凝土组合梁的挠度计算

童根树, 陈迪

童根树, 陈迪. 腹板开孔的钢-混凝土组合梁的挠度计算[J]. 工程力学, 2015, 32(12): 168-178. DOI: 10.6052/j.issn.1000-4750.2014.05.0455
引用本文: 童根树, 陈迪. 腹板开孔的钢-混凝土组合梁的挠度计算[J]. 工程力学, 2015, 32(12): 168-178. DOI: 10.6052/j.issn.1000-4750.2014.05.0455
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TONG Gen-shu, CHEN Di. DEFLECTION CALCULATION OF COMPOSITE BEAMS WITH WEB OPENINGS[J]. Engineering Mechanics, 2015, 32(12): 168-178. DOI: 10.6052/j.issn.1000-4750.2014.05.0455
Citation: TONG Gen-shu, CHEN Di. DEFLECTION CALCULATION OF COMPOSITE BEAMS WITH WEB OPENINGS[J]. Engineering Mechanics, 2015, 32(12): 168-178. DOI: 10.6052/j.issn.1000-4750.2014.05.0455
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腹板开孔的钢-混凝土组合梁的挠度计算

  • 浙江大学土木工程系,杭州 310058

详细信息
    作者简介:

    陈迪(1990―),男,重庆云阳人,硕士生,从事钢-混凝土组合梁研究(E-mail: cqchendi@gmail.com).

    通讯作者:

    童根树(1963―),男,浙江建德人,教授,博士,从事钢结构稳定和抗震研究(E-mail: tonggs@zju.edu.cn).

DEFLECTION CALCULATION OF COMPOSITE BEAMS WITH WEB OPENINGS

  • Department of Civil Engineering, Zhejiang University, Hangzhou 310058, China

摘要

    摘要
  • 摘要: 描述了一种腹板开孔组合梁挠度的计算方法。提出了楼板参与开孔段上部截面抗弯的有效宽度的概念,并进行了拟合。将剪切变形和空腹桁架弦杆的弯曲变形合并为等效剪切变形,得到开孔段的等效剪切刚度。利用开孔段与未开孔段截面刚度不同的现象,建立分段梁单元模型,采用传统梁理论求解挠度计算公式。与采用实体单元和板壳单元的有限元分析结果的对比表明,该文公式具有很好的精度。
    Abstract: A method for calculating the deflection of composite beams with web openings is described. The effective width of concrete slab working in bending resistance in the top section of perforated segment is proposed and fitted. By combining shear deformation and bending deformation of Vierendeel members into equivalent shear deformation, the equivalent shear rigidity of a perforated segment is obtained. Observed the phenomenon that a perforated segment and an unperforated segment have different section rigidities, a segmented beam element model is established to solve the deflection calculation formulas by traditional beam theory. The formulas show an excellent agreement with the results of finite element analysis using solid and shell elements.
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    • 参考文献(11)
  • [1] Clawson W C, Darwin D. Tests of composite beams with web openings [J]. ASCE Journal of the Structural Division, 1982, 108(1): 145―162.
    [2] Donahey R C, Darwin D. Web openings in composite beams with ribbed slabs [J]. ASCE Journal of Structural Engineering, 1988, 114(3): 518―534.
    [3] Darwin D, Lucas W K. LRFD for steel and composite beams with web openings [J]. ASCE Journal of Structural Engineering, 1990, 116(6): 1579―1593.
    [4] 王鹏, 周东华, 王永慧, 等. 腹板开洞钢-混凝土组合梁抗剪承载力试验研究[J]. 工程力学, 2013, 30(3): 297―305. Wang Peng, Zhou Donghua, Wang Yonghui, et al. Experimental study on shear strength of steel-concrete composite beams with web opening [J]. Engineering Mechanics, 2013, 30(3): 297―305. (in Chinese)
    [5] Benitez M A, Darwin D, Donahey R. C. Deflections of composite beams with web openings [J]. ASCE Journal of Structural Engineering, 1998, 124(10): 1139―1147.
    [6] Chung K F, Lawson R M. Simplified design of composite beams with large web openings to Eurocode 4 [J]. Journal of Constructional Steel Research, 2001, 57(2): 135―164.
    [7] Lawson R M, Hicks S J. SCI publication 355: Design of composite beams with large web openings [M]. UK: The Steel Construction Institute, 2011: 71―74.
    [8] 聂建国, 吴洪, 周建军, 等. 混凝土翼板开洞钢-混凝土组合梁的试验研究及刚度分析[J]. 土木工程学报, 2006, 39(2): 31―35. Nie Jianguo, Wu Hong, Zhou Jianjun, et al. Experimental study and rigidity analysis on composite steel-concrete beams with openings in concrete flange [J]. China Civil Engineering Journal, 2006, 39(2): 31―35. (in Chinese)
    [9] 聂建国, 王宇航. 钢-混凝土组合梁混凝土翼板开洞截面有效翼缘宽度分析[J]. 建筑结构, 2010, 40(4): 72―75. Nie Jianguo, Wang Yuhang. Analysis of effective flange width on composite steel-concrete beams with openings in concrete slab [J]. Building Structure, 2010, 40(4): 72―75. (in Chinese)
    [10] Darwin D. Steel design guide series 2: Design of steel and composite beams with web openings [M]. USA: American Institute of Steel Construction, 1990: 51―54.
    [11] 童根树. 钢结构设计方法[M]. 北京: 中国建筑工业出版社, 2007: 158―177. Tong Genshu. Design method of steel structure [M]. Beijing: China Architecture and Building Press, 2007: 158―177. (in Chinese)
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出版历程
  • 收稿日期:  2014-05-28
  • 刊出日期:  2015-12-24

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