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A study on the combined effect of the weld length and leg size on the capacity of steel plate tension members.

机译：焊接长度和焊脚尺寸对钢板受拉构件承载力的综合影响研究。

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摘要

An experimental study has been conducted to determine the combined effect of the weld length and leg size on the capacity of steel plate tension members. The specimens consisted of single and double plate (flat bar) being welded longitudinally only along two parallel edges to the gusset plates. Six weld configurations with the combination of weld length to plate width ratios (L/w) of 0.5, 1.0, 1.5 and 2.0, and the weld leg size to plate thickness ratios (s/t) of 0.63 and 1.0 were considered. Compared to the test results, provisions in the current Canadian and American design specifications were found to significantly underestimate the capacity at an L/w ratio less than 1.0 and slightly overestimate the capacity at an L/w ratio greater than or equal to 2.0 of the full weld size specimens. The maximum capacity of the full weld size specimens was achieved at a L/w ratio slightly above 1.0, but the full efficiency of the specimen was not achieved even at an L/w ratio of 2.0. However, design provisions for tension members overestimate the capacity of the partial weld size specimens since only the effect of the L/w ratio has been considered.;Along with the experimental study, a finite element analysis parametric study was also conducted for a wide range L/w and s/t ratios that take into account the combined effect of the weld length and leg size. Results of the finite element analyses were used in developing the equations to predict the capacity of welded plate tension members after being calibrated with the test data.
机译：已经进行了一项实验研究，以确定焊接长度和焊脚尺寸对钢板受拉构件承载力的综合影响。试样由单板和双板（扁钢）组成，仅沿与角撑板平行的两个边缘纵向焊接。考虑了六种焊接配置，它们的焊接长度与板宽之比（L / w）为0.5、1.0、1.5和2.0，焊脚尺寸与板厚之比（s / t）为0.63和1.0。与测试结果相比，发现当前加拿大和美国设计规范中的规定大大低估了L / w比小于1.0的容量，而略高估了L / w比大于或等于2.0的容量。全尺寸焊缝试样。 L / w比略高于1.0时，可以达到完整焊缝尺寸试样的最大容量，但即使L / w比为2.0，也无法达到试样的全部效率。然而，由于只考虑了长宽比的影响，有关受拉构件的设计规定高估了部分焊缝尺寸试样的能力。随着实验研究的进行，还进行了范围广泛的有限元分析参数研究L / w和s / t比考虑了焊接长度和焊脚尺寸的综合影响。有限元分析的结果用于建立方程式，以在用测试数据校准后预测焊接板受拉构件的能力。

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  • 作者

    Beauger, Alain-Philippe.;

  • 作者单位

    Carleton University (Canada).;

  • 授予单位 Carleton University (Canada).;
  • 学科 Engineering Civil.
  • 学位 M.A.Sc.
  • 年度 2010
  • 页码 165 p.
  • 总页数 165
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

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