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Truss type large plate girder system for tower type boiler

A tower boiler and large slab beam technology, which is applied in industrial buildings and other directions, can solve the problems of large slab girder components, large amount of steel used for slab girder, difficulty in materials, fabrication, welding, transportation, installation, and debugging.

Active Publication Date: 2013-07-17
CHINA POWER ENG CONSULTING GRP CORP EAST CHINA ELECTRIC POWER DESIGN INST
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Problems solved by technology

This design often results in huge large plate girder components, the beam height may reach more than 7m, and the steel components with a span of more than 30 meters
The material requirements are relatively high, and the amount of steel used for large plate girders is very large. Generally, the on-site hoisting needs to be hoisted in two or more times, and the quality requirements for on-site welding are very high. It is difficult to transport, install and debug

Method used

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  • Truss type large plate girder system for tower type boiler
  • Truss type large plate girder system for tower type boiler

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Embodiment Construction

[0032] After long-term in-depth and extensive research, the inventor solved the problem of using a two-product box-shaped superimposed solid-web steel girder as the main girder and a solid-web steel girder as the secondary girder in the existing large plate girder system, which requires a large amount of steel and high welding quality requirements. , transportation difficulties and other defects. Improving the structure of the large plate girder system of the boiler can meet the stress requirements of the large plate girder system while reducing the total steel consumption of the large plate girder system. It has the advantages of good mechanical performance, good vertical rigidity, and convenient installation. The present invention has been accomplished on this basis.

[0033] Unless otherwise defined, all professional and scientific terms used herein have the same meanings as commonly understood by those skilled in the art. In addition, any methods and materials similar or...

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Abstract

The invention provides a truss type large plate girder system for a tower type boiler. The large plate girder system comprises a main truss and a secondary truss, wherein the main truss is provided with an upper chord, a lower chord, a web member and an end vertical member; the upper chord is parallel to the lower chord; the end vertical member is vertical to the upper chord and the lower chord and is fixedly connected with the two ends of the upper chord and the lower chord; the secondary truss is vertically arranged on the main truss; and the end vertical member of the main truss is connected with the column top of a steel frame of the tower type boiler. The truss type large plate girder system has the advantages of light weight of a single member, small size, low total using amount of steel, high mechanical property, high vertical rigidity, convenience of installation and the like.

Description

technical field [0001] The invention relates to the technical field of large-scale thermal power generation, in particular to a truss-type large plate girder system for a tower boiler. Background technique [0002] Large plate beam system: the stress system of the boiler roof, the entire boiler body is suspended by the boom of the boiler body, and bears the load of the entire boiler body. It has great structural rigidity and bearing capacity both vertically and horizontally. [0003] Box-shaped superimposed solid-web steel beam: a kind of steel beam, usually directly welded with steel plates, with a box-shaped cross-section, and additionally laminated steel plates in the mid-span to increase the bearing capacity. [0004] The force bearing form of the tower boiler frame is the suspension type, and the vertical load of the boiler body is connected with the large plate beam system through the suspender. Therefore, the large plate beam system bears a huge vertical force. The...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E04H5/02
Inventor 王振中干梦军黎大胜徐勍陈飞顾洪波
Owner CHINA POWER ENG CONSULTING GRP CORP EAST CHINA ELECTRIC POWER DESIGN INST
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