Trussed-beam steel beam reinforcing structure

A reinforced structure and truss-type technology, which is applied in building construction, building maintenance, construction, etc., can solve the problems of high steel consumption and little improvement in bearing capacity, so as to improve bearing capacity and section moment of inertia I value , Reinforcement effect is remarkable

Inactive Publication Date: 2009-03-25
GUIYANG AL-MG DESIGN & RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved in the present invention is to propose a new truss-type steel beam reinforcement structure for the shortcomings of the tradition

Method used

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  • Trussed-beam steel beam reinforcing structure
  • Trussed-beam steel beam reinforcing structure
  • Trussed-beam steel beam reinforcing structure

Examples

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Example Embodiment

[0017] Embodiments of the present invention: when using the method of the present invention to reinforce existing steel beams, the following methods and steps can be used:

[0018] First, determine the section moment of inertia that needs to be increased by calculation, and pay attention to the net height of the bottom of the newly added truss 3 to meet the requirements of use, if not, the height of the newly added truss 3 can be adjusted to meet the requirements;

[0019] Second, determine the cross-section size of the web 5, lower chord 6 and column 7 of the truss according to the above calculation results. The web 5 and the lower chord 6 are connected by equilateral double angle steel and connected by the plaque 4. The center spacing of the plaque is 500mm. The thickness of the plaque is 8mm, the size of the angle steel should be determined by calculation, and the thickness of the splicing gusset is 8mm; the column 7 is connected by two equilateral double-angle steel structures...

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Abstract

The invention discloses a trussed steel girder reinforced structure, which is to connect a steel truss (3) under a steel girder (1). The steel girder (3) consists of a web member (5), a lower chord member (6) and an upright post (7). Batten plates (4) are arranged on the web member (5) and the lower chord member (6). The web member (5) and the lower chord member (6) are made of equilateral double angle steel which is connected through the batten plates (4). The thickness of each batten plate (4) is 8 millimeters, and space length of the batten plates (4) is 500 millimeters. The upright post (7) is formed by connecting two equilateral double angle steels. In the invention, a steel truss is arranged on the bottom of the prior steel girder so as to change the stress system of the prior steel girder and substantially improve the inertia moment I value of the section of the steel girder, thereby achieving the aims of strengthening and reinforcement. Compared with the prior method that formed steel is simply welded on the bottom of the prior steel girder to increase the section of the steel girder, under the condition of using steel materials with the same quantity, the trussed steel girder reinforced structure has more prominent reinforcing effect and economy.

Description

technical field [0001] The invention relates to a truss type steel beam reinforcement structure. Background technique [0002] Steel beam is an important force-bearing member in steel structure buildings. It is mainly used to bear vertical load and transmit it to steel columns. Whether it meets the requirements for use will directly affect the safety of the entire structural system. Sometimes due to human error in the design and construction, or a substantial increase in the load in actual use after the design is completed, the safety of the design has been broken through. When these problems are found, the steel beam has often been constructed. For safety during use, it is necessary to reinforce and reinforce the steel beams. The traditional steel beam reinforcement method is generally completed by increasing the cross-sectional size, that is, adding welded steel to the existing steel beam. figure 1 , figure 2 It is a schematic diagram of traditional steel beam reinfor...

Claims

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Application Information

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IPC IPC(8): E04G23/02E04G23/04
Inventor 常建华
Owner GUIYANG AL-MG DESIGN & RES INST
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