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Installation method of steel frame beam segment with main beam in mid-span and a steel frame beam

A technology for steel frame beams and installation methods, which is applied to bridges, bridge construction, erection/assembly of bridges, etc., can solve problems such as low installation efficiency, cumbersome construction procedures, and heavy workload, so as to improve construction efficiency, reduce installation costs and Difficulty of installation and the effect of reducing labor intensity

Active Publication Date: 2021-08-10
中铁大桥局第七工程有限公司
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Problems solved by technology

When installing this type of steel girder, bracket support is generally set in the mid-span, and the pier top main beam and mid-span main beam are installed first, and then the small longitudinal beam is installed. The process is cumbersome and the installation efficiency is low

Method used

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  • Installation method of steel frame beam segment with main beam in mid-span and a steel frame beam
  • Installation method of steel frame beam segment with main beam in mid-span and a steel frame beam
  • Installation method of steel frame beam segment with main beam in mid-span and a steel frame beam

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Embodiment Construction

[0030] In order to further explain the technical means and effects adopted by the present invention to achieve the intended purpose of the invention, the specific implementation of a steel frame beam with a main beam in the middle of the span according to the present invention will be described below in conjunction with the accompanying drawings and preferred embodiments. The working principle is described in detail.

[0031] Such as figure 1 As shown, in order to improve the installation efficiency of steel frame beams with main beams in the mid-span, this embodiment provides a segmental installation method for steel frame beams with main beams in the mid-span, specifically including:

[0032] (1) First divide the steel frame beam into 3 parts, the front main beam 3, the rear main beam 4, and the mid-span main beam with small longitudinal beams;

[0033] (2) The mid-span main beam 1 is segmented into multiple sections, and each section is connected to the corresponding small...

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Abstract

The invention relates to the field of bridge erection engineering, and specifically discloses a method for installing a section of a steel frame beam with a main beam in the mid-span and a steel frame beam, including: dividing the steel frame beam into a front main beam, a rear main beam, a belt The mid-span main beam of the small longitudinal beam; the mid-span main beam is manufactured in sections and connected with the corresponding small longitudinal beams of the segment to form multiple unit elements; the front and rear beams are hoisted to the top of the column on the installation site; the unit elements are hoisted to the Installation position; connect the small longitudinal beam on the unit unit with the front and rear main beams; connect the unit units into a whole. When the present invention is installed, the front and rear main beams are first installed on the columns, and the unit parts are hoisted in blocks by hoisting equipment, thereby eliminating the temporary support structure in the mid-span, simplifying the installation process of the steel frame beam with the main beam in the mid-span, and reducing the The installation cost and installation difficulty reduce the labor intensity and improve the construction efficiency.

Description

technical field [0001] The invention relates to the field of bridge erection engineering. Background technique [0002] In the construction of modern large bridges, steel girders generally adopt the form of steel frame girder structure. As the span of the steel main girder frame increases, a main beam is set in the middle of the span to strengthen the lateral stiffness of the main girder. When installing this type of steel girder, bracket support is generally set in the mid-span, and the pier top main beam and mid-span main beam are installed first, and then the small longitudinal beam is installed. The process is cumbersome and the installation efficiency is low. Contents of the invention [0003] The object of the present invention is to solve the above problems, to provide a method for installing a steel frame beam section with a main cross beam in the mid-span and a steel frame beam. When installing a steel frame beam section, first install the section The end beam ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E01D21/00
CPCE01D21/00
Inventor 许鑫陈海龙李晓琪祝良红陈杰陈春影肖安陈鑫余昆李自学杜雨果徐胜泉聂飞飞
Owner 中铁大桥局第七工程有限公司
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