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Cooperative Study on Strength and Deformation Capacity of Steel Beam-Columns

钢梁-柱强度与变形能力协同研究

基本信息

批准号：
02302072
负责人：
MORINO Shosuke
金额：
$ 5.06万
依托单位：
Mie University
依托单位国家：
日本
项目类别：
Grant-in-Aid for Co-operative Research (A)
财政年份：
1990
资助国家：
日本
起止时间：
1990 至 1992
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-02302072/
关键词：
Steel beam-column Strength Deformation capacity Energy dissipation capacity Low yield ratio High strength steel H-shaped steel Square steel tube 角形鋼管

项目摘要

Main purposes of the research presented are: (i) to collect previous experimental data of strength and deformation capacity of steel beam-columns by the literature survey, and to identify influential factors, (ii) to clarify the behavior of beam-columns made of newly developed high-strength steel with low yield ratio, comparing with those of conventional mild steel, and (iii) to develop general type of evaluation formulas for strength and deformation capacity of beam-columns. Items investigated experimentally and theoretically in this research project are as follows: (a) Development of a data base of strength and deformation capacity of steel beam-columns and investigation of the accuracy of evaluation formulas, (b) Investigation of elasto-plastic in-plane instability of H-shaped beam-columns subjected to a constant axial force and repeated anti-symmetrical bending moment, (c) Investigation of elasto-plastic instability due to local buckling or lateral torsional buckling of L-shaped fr … More ames composed of H-shaped column and elastic beam, subjected to a constant axial force and a monotonic horizontal force, (d) Investigation of local buckling behavior of cold-formed square-tubular beam-columns subjected to a constant axial force and alternately repeated double curvature bending moment, (e) Investigation of elasto plastic behavior of square-tubular cantilever beam-columns with or without filled-concrete, subjected to a constant axial force and alternately repeated horizontal force, (f) Investigation of buckling strength of centrally loaded square tubular columns with or without filled-concrete, (g) Investigation of strength and deformation capacity of cold- formed and specially heat-treated circular tubes based on tensile coupon tests, stub column compression tests and repeated bending tests. Test specimens were made of either mild steel such as SS400 and STKR400 or newly developed high strength steel with low yield ratio, of which strength was equivalent to SM570 and yield ratio was about 0.8. The effects of the difference in material properties on the beam-column behaviors were investigated together with the effects of other essential parameters, such as axial force ratio, width-thickness ratio, slenderness ratio, loading condition and existence of filled-concrete. Details of each investigation were given in the report of Form 1. as well as in the technical papers published in national and international proceedings and journals. Less

提出的研究的主要目的是：（i）通过文献调研收集以往钢梁柱强度和变形能力的试验数据，并找出影响因素;（ii）通过与传统低碳钢的对比，阐明新开发的低屈强比高强钢梁柱的性能，（3）建立了梁柱强度和变形能力的通用计算公式。在本研究项目中，实验和理论研究的项目如下：（a）开发钢梁柱强度和变形能力数据库并研究评估公式的准确性。（B）研究在恒定轴力和反复反对称弯矩作用下H形梁柱的弹塑性面内不稳定性。（c）L形框架由于局部屈曲或横向扭转屈曲而引起的弹塑性不稳定性的研究 ...更多信息由H形柱和弹性梁组成的冷弯薄壁方钢管压弯艾姆斯，在恒定轴力和单调水平力作用下，（d）研究了冷弯薄壁方钢管压弯构件在恒定轴力和交替重复双曲率弯矩作用下的局部屈曲性能，（e）研究了有无填充混凝土的方钢管悬臂压弯构件的弹塑性性能，（f）有或没有填充混凝土的中心加载方管柱的屈曲强度的研究;（g）基于拉伸试样试验、短柱压缩试验和重复弯曲试验的冷成型和特殊热处理圆管的强度和变形能力的研究。试样由SS 400和STKR 400等低碳钢或新开发的低屈强比高强度钢制成，其强度与SM 570相当，屈强比约为0.8。研究了材料性能差异对梁柱性能的影响，以及轴力比、宽厚比、长细比、加载条件和填充混凝土的存在等其他基本参数的影响。每项调查的详情载于表格1的报告。以及在国家和国际会议记录和期刊上发表的技术论文。少