Research on reinforcement technology of existing double-way curved arch bridge

• Autorzy: Zhang Kexin , Qi Tianyu , Xue Xingwei , Li Yanfeng , Zhu Zhimin

Identyfikatory

DOI

10.24425/ace.2021.137186

• Języki publikacji: EN

Abstrakty

EN

Two-way curved arch bridges inherit the fine tradition of masonry structures, making full use of the advantages of prefabricated assembly, it adapts to the situation of no support construction and no large lifting machine and tools, and has the characteristics of convenient construction method and saving material consumption. In appearance, the two-way curved arch bridge has strong national cultural characteristics. The prefabricated components of the two-way curved arch bridge are fragmentary, complicated in bearing and poor in integrity. Most of the two-way curved arch bridges in service have been built for a long time and lack of maintenance and management. Increasing the cross-section reinforcement method is one of the two-way curved arch reinforcement methods. It has a significant effect, convenient construction, good rigidity and stability characteristics after the reinforcement. Through theoretical analysis, combined with a static load test results of the assessment of the bridge reinforcement effect. Through load test, it is found that the deflection of the arch rib after reinforcement is reduced by 9%~19% and the strain of the arch rib is reduced by 12%~22%. Through finite element calculation, the crack width of the reinforced arch rib decreases by 8.3%~14.2%. The results show that the stress and deflection are greatly improved by the method of increasing section.

Słowa kluczowe

EN

cross-section reinforcement; reinforcement; two-way bridge; curved bridge; arch bridge; reinforcement effect

PL

wzmocnienie; most dwukierunkowy; most łukowy; most zakrzywiony; zwiększenie przekroju; efekt wzmocnienia

• Wydawca: Komitet Inżynierii Lądowej i Wodnej PAN ; Politechnika Warszawska, Wydział Inżynierii Lądowej
• Czasopismo: Archives of Civil Engineering
• Rocznik: 2021
• Tom: Vol. 67, nr 2
• Strony: 581--595
• Opis fizyczny: Bibliogr. 9 poz., il., tab.

Twórcy

autor

Zhang Kexin

• Shenyang Jianzhu University, School of Traffic Engineering, Shenyang, China

• https://orcid.org/0000-0001-6610-0045

autor

Qi Tianyu

• Shenyang Jianzhu University, School of Traffic Engineering, Shenyang, China

• https://orcid.org/0000-0001-6741-0483

autor

Xue Xingwei

• Shenyang Jianzhu University, School of Traffic Engineering, Shenyang, China

• https://orcid.org/0000-0002-8605-1196

autor

Li Yanfeng

• Shenyang Jianzhu University, School of Traffic Engineering, Shenyang, China

• https://orcid.org/0000-0003-2153-7934

autor

Zhu Zhimin

• Liaoning Urban Construction Design Institute Co. LTD, Shenyang, China

• https://orcid.org/0000-0002-8715-471X

Bibliografia

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• [6] Chen X. Y., Liao B., Li J. Research on Optimization Design for Reinforcing Method of Irregular Cross-Section Arch[J]. Applied Mechanics & Materials, 2012,166-169:1684-1688.https://doi.org/10.4028/www.scientific.net
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