A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Non-wet-joint span-by-span spliced prestressed concrete continuous beam bridge and construction method
The invention discloses a non-wet-joint span-by-span spliced prestressed concrete continuous beam bridge and a construction method, the continuous beam bridge comprises a main beam and piers erecting the main beam, the main beam is a multi-span prestressed concrete continuous beam, the main beam is connected with the piers through supports, the main beam is divided into a plurality of main beam prefabricated sections in the longitudinal bridge direction, the adjacent main beam prefabricated sections are connected through the splicing joints; the construction method comprises the following steps that the first pier top prefabricated section is constructed, other main beam prefabricated sections of the first span of the main beam and the second span of the main beam are spliced to the relay splicing seam, grouting and prestress tensioning are conducted on the corresponding supports, secondary splicing is conducted, grouting and prestress tensioning are conducted on the supports again, construction is repeated, construction is conducted to the tail beam end prefabricated section, and grouting is conducted on the supports to form the bridge. The prefabricated sections of the main beam are prefabricated in a factory and are integrally assembled on site, so that the construction quality and the construction efficiency are ensured. No wet joint or cast-in-place closure section exists, and the standardization, factorization, mechanization and informatization operation degree is improved.
本发明公开了一种无湿接缝逐跨拼装预应力混凝土连续梁桥及施工方法，其连续梁桥包括主梁和将主梁架起的桥墩，主梁为多跨预应力混凝土连续梁，主梁与桥墩通过支座连接，主梁沿纵桥向分为若干个主梁预制节段，相邻主梁预制节段通过拼装接缝相连；其施工方法，包括以下步骤：施工首个墩顶预制节段、拼装主梁第1跨的其他主梁预制节段和第2跨至接力拼接缝处、对应支座灌浆并张拉预应力、进行第二次拼装、再次支座灌浆并张拉预应力、重复施工、施工至末梁端预制节段、支座灌浆成桥。本发明主梁预制节段均在工厂预制，现场进行整体拼装，保证了施工质量和施工效率。本发明无任何湿接缝和现浇合龙段，提高了标准化、工厂化、机械化、信息化作业程度。
Non-wet-joint span-by-span spliced prestressed concrete continuous beam bridge and construction method
The invention discloses a non-wet-joint span-by-span spliced prestressed concrete continuous beam bridge and a construction method, the continuous beam bridge comprises a main beam and piers erecting the main beam, the main beam is a multi-span prestressed concrete continuous beam, the main beam is connected with the piers through supports, the main beam is divided into a plurality of main beam prefabricated sections in the longitudinal bridge direction, the adjacent main beam prefabricated sections are connected through the splicing joints; the construction method comprises the following steps that the first pier top prefabricated section is constructed, other main beam prefabricated sections of the first span of the main beam and the second span of the main beam are spliced to the relay splicing seam, grouting and prestress tensioning are conducted on the corresponding supports, secondary splicing is conducted, grouting and prestress tensioning are conducted on the supports again, construction is repeated, construction is conducted to the tail beam end prefabricated section, and grouting is conducted on the supports to form the bridge. The prefabricated sections of the main beam are prefabricated in a factory and are integrally assembled on site, so that the construction quality and the construction efficiency are ensured. No wet joint or cast-in-place closure section exists, and the standardization, factorization, mechanization and informatization operation degree is improved.
本发明公开了一种无湿接缝逐跨拼装预应力混凝土连续梁桥及施工方法，其连续梁桥包括主梁和将主梁架起的桥墩，主梁为多跨预应力混凝土连续梁，主梁与桥墩通过支座连接，主梁沿纵桥向分为若干个主梁预制节段，相邻主梁预制节段通过拼装接缝相连；其施工方法，包括以下步骤：施工首个墩顶预制节段、拼装主梁第1跨的其他主梁预制节段和第2跨至接力拼接缝处、对应支座灌浆并张拉预应力、进行第二次拼装、再次支座灌浆并张拉预应力、重复施工、施工至末梁端预制节段、支座灌浆成桥。本发明主梁预制节段均在工厂预制，现场进行整体拼装，保证了施工质量和施工效率。本发明无任何湿接缝和现浇合龙段，提高了标准化、工厂化、机械化、信息化作业程度。
Non-wet-joint span-by-span spliced prestressed concrete continuous beam bridge and construction method
一种无湿接缝逐跨拼装预应力混凝土连续梁桥及施工方法
SU WEI (author) / ZUO JIAQIANG (author) / ZHOU YUEWU (author) / ZHANG YUE (author) / WANG ZONGFENG (author) / LI ENLIANG (author) / ZHANG HAI (author)
2021-09-07
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
Multi-span prestressed concrete continuous beam bridge dismantling method
| European Patent Office | 2023
| European Patent Office | 2016
Free-span prestressed concrete bridge
| Engineering Index Backfile | 1952
Long Span Prestressed Concrete Continuous Rigid-Frame Bridge ANN Construction Control
| Trans Tech Publications | 2012
Load Test Analysis of Long-Span Prestressed Concrete Continuous Beam Bridge
| Trans Tech Publications | 2014