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EXPERIMENTAL RESEARCH ON MECHANICAL PROPERTIES OF DOUBLE-LAYER SHOULDER BEAMS WITH TRIPLE-LIMB SIDE COLUMNS OF CONCRETE-FILLED STEEL TUBES
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摘要: 为了研究双层肩梁的受力性能和破坏模式，以便更好地为双层肩梁的设计提供理论支持，设计了3个三肢边柱双层肩梁试件，并对其进行单调加载试验，通过改变中柱内肢在下肩梁的作用位置，分析其对试件的屈服荷载、主要部位的应变、屈服机制和破坏模式的影响。结果表明：下肩梁内肢侧腹板的屈服对试件的屈服荷载起控制因素，并能很好反映试件的屈服，可以腹板的屈服来确定试件的屈服荷载；在中柱内肢向外侧偏移的过程中，双层肩梁的承载力提高；试件的破坏是由于下肩梁内肢侧腹板发生剪切型凸曲变形。Abstract: In order to study the mechanical property and failure mode of double-layer shoulder beams, so as to provide theoretical support for the design of the double-layer shoulder beam, three specimens of double-layer shoulder beams with triple-limb side columns were designed and tested under monotonic loading. By changing the action position of the inner limb of the middle column on the lower shoulder beam, the effects on the yield load, strain of the main parts, yield mechanism and failure mode of specimens were analyzed. The results showed that the yield of the inner limb web of the lower shoulder beam was the control factor of the yield load for specimens, which could reflect the yield of specimens very well. The yield load of specimens could be determined by the yield of web plates; the bearing capacity of the double shoulder beam was improved in the process of outer shift for inner limbs of middle columns; the failure of specimens was due to the shear type convex deformation of side webs for inner limbs of lower shoulder beams.
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Key words:
- double-layer shoulder beam /
- yield load /
- strain analysis /
- bearing capacity /
- failure mode
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[1] 兰涛,苏健兴,赵廷涛,等.某重型车间双层肩梁加固的非线性分析[J].钢结构,2018,33(12):130-136. [2] LAN T, HU W Z,GAO R X,et al.The Research and Development on Shoulder Beam of CFST[C]//2016 International Symposium on Material Application and Engineering (SMAE 2016). 2016. [3] 金天德,饶芝英.钢管混凝土柱肩梁应力分析[J].浙江建筑,1997(5):13-15,33. [4] 于安林,童根树.钢管混凝土四肢柱人字形缀杆双腹板肩梁的受力性能[J].西安建筑科技大学学报(自然科学版),1998(2):3-5. [5] 于安林,童根树.钢管混凝土四肢柱单斜缀杆双腹板肩梁的受力性能[J].西安公路交通大学学报,1998(2):3-5. [6] 王俊峰.钢管混凝土柱双腹板肩梁受力性能试验研究[D].西安:西安建筑科技大学,2009. [7] 王亚军.钢管混凝土双肢柱改进型单腹板肩梁承载能力试验研究[D].西安:西安建筑科技大学,2009. [8] 汪锋.重型厂房钢管混凝土格构柱肩梁结构设计研究[J].工程建设与设计,2011(8):57-59. [9] 胡卫中.钢管混凝土双层肩梁承载力及设计方法研究[D].西安:西安建筑科技大学,2017. [10] 中华人民共和国住房和城乡建设部. 钢结构设计标准:GB 50017-2017[S].北京:中国建筑工业出版社,2018. [11] 兰涛,张博雅,门进杰,等.钢管混凝土双肢边柱双层肩梁受力性能试验研究[J].工业建筑,2021,51(9):1-9. 期刊类型引用(2)
1. 门进杰，彭泰，范栋鑫，兰涛，张辉煌，何浩. 钢管混凝土双肢边柱双层肩梁设计方法研究. 工业建筑. 2021(09): 9-15+131 . 
本站查看2. 兰涛，秦广冲，傅彦青，门进杰，何浩. 钢管混凝土三肢边柱双层肩梁受力性能试验研究. 工业建筑. 2021(09): 24-32 . 本站查看其他类型引用(0)
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