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Technique of producing steel-concrete connecting beam

A manufacturing process and concrete bonding technology, which is applied in the manufacturing process of new bonded beams, can solve problems such as heavy workload at the installation site, poor integrity of beam sections, and difficulty in ensuring the through-hole rate of high-strength bolts, so as to ensure accuracy and ensure The Effect of Hole Ratio of High-Strength Bolts

Active Publication Date: 2007-09-12
SHANGHAI FOUND ENG GRP
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Problems solved by technology

[0014] The disadvantage of the composite beam manufactured in this way is that the installation site workload is large, which is not conducive to optimizing the construction period; secondly, the integrity of the beam section is not good, the on-site connection between the concrete panel and the steel structure part is not ideal, and the structural form of the composite beam is not ideal. A sealed box with poor anti-corrosion effect in marine climate environment
This process is difficult to ensure that the bridge axis meets the design requirements, and it is also difficult to ensure the through-hole rate of high-strength bolts when the bridge deck beam section is installed, that is, the success rate of bolts passing through the bolt holes

Method used

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  • Technique of producing steel-concrete connecting beam

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Embodiment Construction

[0028] According to the requirements of the combined beam manufacturing process and the site and equipment conditions, a steel structure was arranged in the beam yard to make tire frames.

[0029] ①Steel materials are blanked into panels in the factory; ②The panels are assembled into steel structural panel units; this process is completed in the workshop; ③The steel structural panel units are assembled on the tire frame, that is, assembled into steel structural beam section 2; ④Adjust the overall line type of the beam section; place several assembled steel structure beam sections on the concrete pouring tire frame for pre-assembly, and adjust the overall line type of the beam section according to the design requirements, and check whether the steel structure beam section is assembled. No error; if there is an error, it needs to be corrected, correct the shape of the beam section, the flatness of the port, and adjust the parameters such as the angle and spacing between the beam ...

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Abstract

The process of manufacturing bond beam includes the following steps: 1. cutting steel plate; 2. forming steel structure plate unit with steel plates; 3. assembling steel structure beam section with steel structure plate units; 4. regulating the line profile of the beam section, pre-assembling and correcting errors; 4. setting formwork on steel structure beam section, depositing concrete and curing to form concrete panel and bond beam; 6. pre-stress stretching the concrete panel; 7. trial assembling the steel structures of adjacent bond beam; and 8. disassembling the pre-assembled steel structures, painting, transporting to site and site assembling. The said process can prevent deformation of bolt holes caused by stretching after drilling holes.

Description

technical field [0001] The invention is a novel combined beam manufacturing process, which refers to the improvement of the manufacturing process applied to large-scale bridge steel-concrete combined beams. Background technique [0002] The main girder structure of traditional long-span bridges generally adopts the form of steel (box) beam, concrete (box) beam or steel-concrete composite beam. The traditional steel-concrete composite beam is made by using the steel structure part and the concrete structure part. In the form of separate prefabrication in the factory and then connection and combination at the engineering site, the detailed manufacturing process is as follows: [0003] ①The steel in the factory is cut into plates; [0004] ② The plates are assembled into steel structure plate units; [0005] ③ Assemble the steel structural plate units into steel structural beam sections; [0006] ④ Pre-assemble (connection plate drilling) between steel structure beam section...

Claims

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Application Information

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IPC IPC(8): B28B7/22
Inventor 张辉荣倪涛黄雪华
Owner SHANGHAI FOUND ENG GRP
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