- Tytuł:
- Research on reinforcement technology of existing double-way curved arch bridge
- Autorzy:
-
Zhang, Kexin
Qi, Tianyu
Xue, Xingwei
Li, Yanfeng
Zhu, Zhimin - Powiązania:
- https://bibliotekanauki.pl/articles/1852535.pdf
- Data publikacji:
- 2021
- Wydawca:
- Polska Akademia Nauk. Czytelnia Czasopism PAN
- Tematy:
-
wzmocnienie
most dwukierunkowy
most łukowy
most zakrzywiony
zwiększenie przekroju
efekt wzmocnienia
croscross-section increasing
reinforcement
two-way bridge
curved bridge
arch bridge
reinforcement effect - Opis:
- 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.
- Źródło:
-
Archives of Civil Engineering; 2021, 67, 2; 581-595
1230-2945 - Pojawia się w:
- Archives of Civil Engineering
- Dostawca treści:
- Biblioteka Nauki
Artykuł