Experimental study on seismic performances of U-shaped steel composite beam and double steel plate composite wall joints

被引：0

作者：

Zhao Y. ^{[1
]}

Li Z. ^{[1
]}

Ma H. ^{[1
]}

Zhang N. ^{[2
]}

机构：

[1] Faculty of Architecture, Civil and Transportation Engineering, Beijing University of Technology, Beijing

[2] Beijing Cheng'an Construction Engineering Testing Co., Ltd., Beijing

来源：

Dongnan Daxue Xuebao (Ziran Kexue Ban)/Journal of Southeast University (Natural Science Edition) | 2023年 / 53卷 / 02期

关键词：

bending performance; connection performance; double steel plate composite walls; energy consumption capacity; U-shaped steel composite beams;

D O I：

10.3969/j.issn.1001-0505.2023.02.009

中图分类号：

学科分类号：

摘要：

To study the effects of different connection methods on the performances of the U-shaped steel composite beam and the double steel plate composite wall joints, three groups of six joint specimens were designed and manufactured. The pseudo static tests loading at the beam end were conducted. The failure mode, load, displacement, and strain of the specimens were analyzed. The results show that all of the failure locations of the specimens are the beam ends, and the composite walls are undamaged. Under positive loading, the cracks of steel plates cause the reduction of the bearing capacity and ductility, and the ductility coefficients are 1.56 to 2.12. Under negative loading, the ductility coefficients are 2.55 to 2.79 without the effects of steel plate cracking. The minimum of the strength degradation coefficients of 6 specimen is 0.7. Under positive and negative loading, 94% and 97% of composite beam steel webs reach yield strength, respectively. With the sectional plasticity method, the ratios of the experimental results and the theoretical results of the bearing capacity are 0.88 to 1.08. The six joints can effectively connect the composite beams and the composite walls. After the U-shaped connecting plate is adopted, the damage positions are moved outwards, which can protect the walls with a better way. © 2023 Southeast University. All rights reserved.

引用

页码：262 / 269

页数：7

共 12 条

[1] Oehlers D J., Composite profiled beams, Journal of Structural Engineering, 119, 4, pp. 1085-1100, (1993)
[2] Eom T S, Lim J J., Flexural behavior of noncompact and slender concrete-filled U-section beams under negative bending, Journal of Structural Engineering, 148, 10, pp. 1-13, (2022)
[3] Liu Y, Guo L H, Qu B, Et al., Experimental investigation on the flexural behavior of steel-concrete composite beams with U-shaped steel girders and angle connectors, Engineering Structures, 131, pp. 492-502, (2017)
[4] Zhou X H, Zhao Y, Liu J P, Et al., Bending experiment on a novel configuration of cold-formed U-shaped steel-concrete composite beams [J], Engineering Structures, 180, pp. 124-133, (2019)
[5] Guo L H, Liu Y, Qu B., Fully composite beams with U-shaped steel girders: Full-scale tests, computer simulations, and simplified analysis models, Engineering Structures, 177, pp. 724-738, (2018)
[6] Zhao Y, Zhou X H, Yang Y L, Et al., Negative bending behavior of novel U-shaped steel and concrete composite beams [J], Engineering Structures, 237, pp. 1-13, (2021)
[7] Chen L H, Li A Q, Lu F Y, Et al., Experimental study on joints of outer-plated steel-concrete composite beam and reinforced concrete columns, China Civil Engineering Journal, 40, 11, pp. 41-47, (2007)
[8] Chen L H, Li A Q, Lu F Y, Et al., Experimental investigation on joints connecting outer-plated steel-concrete continuous composite beam and shape-steel concrete column [J], Journal of Southeast University(Natural Science Edition), 37, 4, pp. 656-660, (2007)
[9] Liu Y, Guo L H, Zhang S M., Cyclic loading tests of composite joints between concrete-filled square steel tubular column and composite beam with U-shaped steel girder, Journal of Building Structures, 39, 6, pp. 131-140, (2018)
[10] Xu X, Cheng R, Yang P, Et al., Behavior of T-shaped CFST column and U-shaped steel-concrete composite beam joints [J], Journal of Building Engineering, 43, (2021)

← 1 2 →