The softened membrane model for torsion (SMMT), formerly developed for the torsional analysis of reinforced concrete (RC) members, has the capability of modeling the biaxial strains of concrete with Poisson effect, the tension stiffening effect of concrete and the contribution of concrete in shear. It is extended to the composite box-girders with corrugated steel webs under pure torsion in this study. The extended SMMT for RC composite box-girders with corrugated steel webs incorporates the contribution of corrugated steel webs into the SMMT for RC members by applying the assumption of shear strain relations between concrete slabs and corrugated steel webs. Moreover, the thickness of shear flow zone in concrete slabs is reasonably corrected. Besides, the modifications of equilibrium equations and convergence criteria are conducted for the prestressed concrete (PC) composite box-girders with corrugated steel webs. The modified SMMT for RC/PC composite box-girders with corrugated steel webs is able to predict the overall torsional behavior, including the torque-twist curve and the smeared shear strains in concrete slabs and corrugated steel webs, as well as any other related variables. The accuracy and superiority of the proposed model are verified by comparing the theoretical predictions from the SMMT with the experimental results and the predictions from existing model.
机构:
Guangxi Key Lab Intelligent Control & Maintenance, Nanning 530023, Peoples R China
Guangxi Power Grid Co Ltd, Elect Power Res Inst, Nanning 530023, Peoples R ChinaGuangxi Key Lab Intelligent Control & Maintenance, Nanning 530023, Peoples R China
Bian, Meihua
Zhang, Xingsen
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Guangxi Key Lab Intelligent Control & Maintenance, Nanning 530023, Peoples R China
Guangxi Power Grid Co Ltd, Elect Power Res Inst, Nanning 530023, Peoples R ChinaGuangxi Key Lab Intelligent Control & Maintenance, Nanning 530023, Peoples R China
Zhang, Xingsen
Li, Junhua
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机构:
Guangxi Key Lab Intelligent Control & Maintenance, Nanning 530023, Peoples R China
Guangxi Power Grid Co Ltd, Elect Power Res Inst, Nanning 530023, Peoples R ChinaGuangxi Key Lab Intelligent Control & Maintenance, Nanning 530023, Peoples R China
Li, Junhua
Peng, Jianing
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机构:
Guangxi Key Lab Intelligent Control & Maintenance, Nanning 530023, Peoples R China
Guangxi Power Grid Co Ltd, Elect Power Res Inst, Nanning 530023, Peoples R ChinaGuangxi Key Lab Intelligent Control & Maintenance, Nanning 530023, Peoples R China
Peng, Jianing
Qin, Songlin
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机构:
Guangxi Key Lab Intelligent Control & Maintenance, Nanning 530023, Peoples R China
Guangxi Power Grid Co Ltd, Elect Power Res Inst, Nanning 530023, Peoples R ChinaGuangxi Key Lab Intelligent Control & Maintenance, Nanning 530023, Peoples R China
机构:
Fuzhou Univ, Coll Civil Engn, Fuzhou 350108, Peoples R ChinaFuzhou Univ, Coll Civil Engn, Fuzhou 350108, Peoples R China
Zhang, Hao
Zhao, Qiu
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机构:
Fuzhou Univ, Coll Civil Engn, Fuzhou 350108, Peoples R ChinaFuzhou Univ, Coll Civil Engn, Fuzhou 350108, Peoples R China
Zhao, Qiu
Chen, Yiyan
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Fuzhou Univ, Coll Civil Engn, Fuzhou 350108, Peoples R ChinaFuzhou Univ, Coll Civil Engn, Fuzhou 350108, Peoples R China
Chen, Yiyan
Fang, Xiaojun
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机构:
Hong Kong Polytech Univ, Dept Civil & Environm Engn, Hung Hom, Kowloon, Hong Kong, Peoples R China
Guangzhou Univ, Earthquake Engn Res & Test Ctr, Prov Key Lab Earthquake Engn & Appl Tech, Guangzhou, Peoples R ChinaFuzhou Univ, Coll Civil Engn, Fuzhou 350108, Peoples R China
Fang, Xiaojun
Yang, Zhaohui
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机构:
Washington State Univ, Sch Mech & Mat Engn, Pullman, WA USAFuzhou Univ, Coll Civil Engn, Fuzhou 350108, Peoples R China
Yang, Zhaohui
Yang, Xiaoqiang
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机构:
Fuzhou Univ, Coll Civil Engn, Fuzhou 350108, Peoples R China
Hong Kong Polytech Univ, Dept Civil & Environm Engn, Hung Hom, Kowloon, Hong Kong, Peoples R ChinaFuzhou Univ, Coll Civil Engn, Fuzhou 350108, Peoples R China
机构:
Shenzhen Municipal Design & Research Co., Ltd, ShenzhenShenzhen Municipal Design & Research Co., Ltd, Shenzhen
Wu Q.
Jiang R.
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机构:
Shenzhen Municipal Design & Research Co., Ltd, Shenzhen
School of Civil Engineering, Shandong University, JinanShenzhen Municipal Design & Research Co., Ltd, Shenzhen
Jiang R.
Xu T.
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机构:
Shenzhen Municipal Design & Research Co., Ltd, ShenzhenShenzhen Municipal Design & Research Co., Ltd, Shenzhen
Xu T.
Chen Y.
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机构:
Shenzhen Municipal Design & Research Co., Ltd, ShenzhenShenzhen Municipal Design & Research Co., Ltd, Shenzhen
Chen Y.
Nie X.
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机构:
Shenzhen Municipal Design & Research Co., Ltd, ShenzhenShenzhen Municipal Design & Research Co., Ltd, Shenzhen
Nie X.
Jianzhu Jiegou Xuebao/Journal of Building Structures,
2021,
42
: 220
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228