Research on Bending Properties of Steel Girder Based on Segmental Construction Technique

CHANG Shan; ZHANG Hailong; YANG Ming; CHEN Zhang; LU Xuzhao

doi:10.13204/j.gyjzG22031808

Volume 53 Issue 6

Jun. 2023

Turn off MathJax

Article Contents

Article Navigation > INDUSTRIAL CONSTRUCTION > 2023 > 53(6): 122-128

CHANG Shan, ZHANG Hailong, YANG Ming, CHEN Zhang, LU Xuzhao. Research on Bending Properties of Steel Girder Based on Segmental Construction Technique[J]. INDUSTRIAL CONSTRUCTION, 2023, 53(6): 122-128. doi: 10.13204/j.gyjzG22031808

Citation:

CHANG Shan, ZHANG Hailong, YANG Ming, CHEN Zhang, LU Xuzhao. Research on Bending Properties of Steel Girder Based on Segmental Construction Technique[J]. INDUSTRIAL CONSTRUCTION, 2023, 53(6): 122-128. doi: 10.13204/j.gyjzG22031808

Citation:

PDF( 10617 KB)

Research on Bending Properties of Steel Girder Based on Segmental Construction Technique

doi: 10.13204/j.gyjzG22031808

CHANG Shan^1,2,
ZHANG Hailong³,
YANG Ming^{2
,
,},
CHEN Zhang^4,2,
LU Xuzhao^2,5

1. Architecture College, Anhui Science and Technology University, Bengbu 233100, China;
2. School of Transportation, Southeast University, Nanjing 211189, China;
3. Shenzhen Municipal Design & Research Institute Co., Ltd., Shenzhen 518000, China;
4. General Office, Jiangsu Provincial Transportation Engineering Construction Bureau, Nanjing 210004, China;
5. College of Civil Engineering, Tongji University, Shanghai 200092, China

Received Date: 2022-03-18
Available Online: 2023-08-18

Abstract

Abstract

According to the excellent characteristics of steel structure, a kinds of steel girder with segmental assembly and web opening, truss-ring girder, was presented. Based on the theory of Timoshenko beam, the deflection of truss-ring girder under vertical load was obtained by deriving the bending and shear stiffness of the girder. In order to study the bending properties of the girder, two scale model specimens were fabricated according to the requirements of Specifications for Design of Highway Steel Bridge (JTG D64—2015), which were carried out by four-point loading and three-point loading tests, respectively. Two nonlinear analysis models of the specimens were established based on the finite element software ABAQUS, whose results were compared with the test results. The results showed that: 1) the proposed deflection calculation method could effectively calculate the deflection of the girder in the elastic deformation stage; 2) in four-point loading test, the edge of the top deck was prone to lose stability under pressure, which needed to be reinforced; 3) in three-point loading test, the girder reached the yield load, and the compression buckling of the top deck occurred, and the stress level of the top deck and bottom deck were close to the yield strength of Q235.
- truss-ring girder,
- deflection formula,
- bending test,
- load-deflection curve,
- finite element analysis

FullText(HTML)

References(16)

References

[1]	马宁. 高温下受约束蜂窝钢梁的悬链线效应分析[D]. 济南:山东大学, 2015.
[2]	CYRIL T A, BASKAR K. Assessment of Load carrying capacity of thin-webbed castellated beam [J]. Recent Advances in Structural Engineering, 2019, 11: 339-350.
[3]	GHOLIZADEH S, PIRMOZ A, ATTARNEJAD R. Assessment of load carrying capacity of castellated steel beams by neural networks [J]. Journal of Constructional Steel Research, 2011,67: 770-779.
[4]	FERHAT E,MEHMET P S. Ultimate load carrying capacity of optimally designed steel cellular beams [J]. Journal of Constructional Steel Research, 2013, 80: 355-368.
[5]	NAJAFI M, WANG Y C. Behaviour and design of steel members with web openings under combined bending, shear and compression [J]. Journal of Constructional Steel Research, 2017,128: 579-600.
[6]	DELPHINE S,JAN B. Lateral-torsional buckling resistance of cellular beams [J]. Journal of Constructional Steel Research, 2015, 105: 119-128.
[7]	European Committee for Standardization (ECS). Eurocode 3: design of steel structures: sart 1-7: strength and stability of shell structures: EN 1993-1-6[S]. Brussels: ECS, 2005.
[8]	PANEDPOJAMAN P, SAE-LONG W, CHUB-UPPAKARN T. Cellular beam design for resistance to inelastic lateral-torsional buckling [J]. Thin-Walled Structures, 2016, 99: 182-194.
[9]	DELPHINE S, JAN B. Weak-axis flexural buckling of cellular and castellated columns [J]. Journal of Constructional Steel Research, 2016, 124: 91-100.
[10]	王洪范, 王立新. 蜂窝梁的应用和计算方法[J]. 工业建筑, 1994, 24(8): 3-4.
[11]	邵旭东, 刘俊珂. 计入加劲肋的圆孔蜂窝组合梁强度简化计算[J]. 湖南大学学报(自然科学版), 2009, 36(9): 7-11.
[12]	王频, 李小明, 卞晓芳, 等. 蜂窝梁的强度设计及试验对比[J]. 钢结构, 2010, 25(10):14-17.
[13]	黄峥, 储方舟, 邱冶, 等. 考虑剪力和剪力次弯矩影响的蜂窝梁挠度计算式推导与验证[J]. 钢结构, 2018, 33(2):8-12.
[14]	SHAMES I H, DYM C L. Energy and finite element methods in structural mechanics[M]. New York: Boca Raton, 1985.
[15]	TIMOSHENKO S P. On the correction for shear of the differential equation for transverse vibrations of prismatic bars[J]. Philosophical Magazine, 1921, 41(5): 744-746.
[16]	中华人民共和国交通运输部. 公路钢结构桥梁设计规范:JTG D64—2015[S]. 北京: 人民交通出版社, 2015.