A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Side-span-free cast-in-place closure section T-shaped bridge swivel construction method
The invention provides a side-span-free cast-in-place closure section T-shaped bridge swivel construction method which comprises the following steps: before swivel, manufacturing a swivel beam with the length equal to that of a finished bridge, and according to a beam end upwarp value jacked by a side pier support and beam bottom elevation data, combining with a design elevation of the swivel beam bottom at a main pier position, constructing a main pier support; calculating the actual elevation of the top of the support pad stone at the abutment pier, and pouring the abutment pier support pad stone; and then rotation construction of the rotation beam is conducted, after rotation is completed, the rotation beam falls onto the temporary cushion stone for conversion of the side pier support and the main pier system, and then pier beam sealing is conducted. According to the method, one-time rotation beam falling and bridge forming can be achieved, the problem that operation and safety of structures under the bridge are affected by cast-in-place closure section construction can be solved, many problems of post-pouring side span support padstones or capping beams can be solved, and the method can be suitable for rotation design and construction of most T-structure bridges under the general condition.
本发明提供了一种无边跨现浇合龙段T构桥转体施工方法，包括如下步骤：转体前，制造长度与成桥长度相等的转体梁，并根据边墩支座顶升的梁端上挠值以及梁底高程数据，结合主墩位置转体梁底的设计高程，计算边墩处支座垫石顶的实际高程，由此浇筑边墩支座垫石；然后进行转体梁转体施工，转体完成后，转体梁落梁至边墩支座和主墩体系转换临时垫石上，再进行墩梁封固。该发明可以一次转体落梁成桥，既可以解决现浇合龙段施工对桥下构筑物的运营及安全影响问题，又可以解决后浇边跨支座垫石或者盖梁的诸多问题，可以适用于一般情况下的大多数T构桥转体设计和施工。
Side-span-free cast-in-place closure section T-shaped bridge swivel construction method
The invention provides a side-span-free cast-in-place closure section T-shaped bridge swivel construction method which comprises the following steps: before swivel, manufacturing a swivel beam with the length equal to that of a finished bridge, and according to a beam end upwarp value jacked by a side pier support and beam bottom elevation data, combining with a design elevation of the swivel beam bottom at a main pier position, constructing a main pier support; calculating the actual elevation of the top of the support pad stone at the abutment pier, and pouring the abutment pier support pad stone; and then rotation construction of the rotation beam is conducted, after rotation is completed, the rotation beam falls onto the temporary cushion stone for conversion of the side pier support and the main pier system, and then pier beam sealing is conducted. According to the method, one-time rotation beam falling and bridge forming can be achieved, the problem that operation and safety of structures under the bridge are affected by cast-in-place closure section construction can be solved, many problems of post-pouring side span support padstones or capping beams can be solved, and the method can be suitable for rotation design and construction of most T-structure bridges under the general condition.
本发明提供了一种无边跨现浇合龙段T构桥转体施工方法，包括如下步骤：转体前，制造长度与成桥长度相等的转体梁，并根据边墩支座顶升的梁端上挠值以及梁底高程数据，结合主墩位置转体梁底的设计高程，计算边墩处支座垫石顶的实际高程，由此浇筑边墩支座垫石；然后进行转体梁转体施工，转体完成后，转体梁落梁至边墩支座和主墩体系转换临时垫石上，再进行墩梁封固。该发明可以一次转体落梁成桥，既可以解决现浇合龙段施工对桥下构筑物的运营及安全影响问题，又可以解决后浇边跨支座垫石或者盖梁的诸多问题，可以适用于一般情况下的大多数T构桥转体设计和施工。
Side-span-free cast-in-place closure section T-shaped bridge swivel construction method
一种无边跨现浇合龙段T构桥转体施工方法
XIAO YUSONG (author) / CHEN WEISHENG (author) / ZHANG ZHENPENG (author) / LI YAXIANG (author) / MA XINGCHUAN (author) / FAN XIN (author) / ZHANG GUANGCHAO (author) / ZHANG JIANGBO (author) / ZHANG YONG (author)
2023-05-26
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
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