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Connecting device for box type column and box type beam

A connecting device and box-shaped column technology, which is applied in the field of boiler steel structure, can solve the problems of difficult installation, heavy weight, and large welding volume, and achieve the effects of cost saving and convenient processing and manufacturing

Inactive Publication Date: 2020-08-04
HARBIN BOILER
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] In recent years, my country's power industry has been developing at a high speed, and the unit level has gradually increased from 300MW to the current 1000MW level. The steel structure is an important part of the boiler as a whole. The reasonable overall layout of the steel structure is an important factor to reduce the cost of the boiler. , a 1000MW boiler will have a beam with a large span. This beam is generally a structural beam, which bears a relatively large load. The beam needs stronger stiffness to control the deformation of the beam itself. If it is designed as a traditional I-shaped section, then the beam The height will be very high. Due to the consideration of the stability of the beam itself, the flange web of the beam should meet the overall problems of the beam and its own stability. The thickness of the steel plate is too thick, the on-site welding conditions are limited, the welding process cannot be satisfied, and the welding volume is too large
and because it is difficult to install

Method used

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  • Connecting device for box type column and box type beam
  • Connecting device for box type column and box type beam

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Embodiment one: if Figure 1-2 As shown, a connection device for a box-shaped column and a box-shaped beam involved in this embodiment includes a box-shaped column, a box-shaped column connecting plate, a box-shaped beam and a box-shaped beam connecting plate, a box-shaped column and a box-shaped column The connection plates are placed vertically, the box column connection plate is welded on the box column body, and the two box column connection plates on the box column body are arranged symmetrically, and the box girder connection plate is welded at the end of the box girder , the connecting plate of the box column and the connecting plate of the box girder are fixed by bolt connection.

[0018] according to figure 1 It can be seen that the connecting plate of the box-shaped column and the box-shaped beam is trapezoidal, the column body of the box-shaped column is connected with the lower side of the trapezoidal shape of the connecting plate of the box-shaped column, ...

Embodiment 2

[0019] Embodiment two: if figure 2 As shown, in the connection device of a box column and a box girder involved in this embodiment, the thickness of the connecting plate of the box column and the connecting plate of the box girder is determined according to the shear force at the connection.

[0020] Determine the thickness of the connecting plate according to the formula στ=F / 2×t×h, where t is the plate thickness (in mm), h is the plate height (in mm), F is the support reaction force, and στ is the allowable shear stress ( Unit MPa).

Embodiment 3

[0021] Embodiment three: as figure 1 As shown, in the connection device for a box-shaped column and a box-shaped girder involved in this embodiment, the shapes of the connecting plate of the box-shaped column and the connecting plate of the box-shaped beam are determined according to the number and arrangement of bolts.

[0022] according to figure 1 It can be seen that bolts are evenly arranged near each edge of the connecting plate, a row of bolts is arranged in the middle of the connecting plate parallel to the upper and lower sides, and bolts are arranged on both sides of the upper and lower flanges of the box girder.

[0023] Bolts are evenly arranged on each side of the connecting plate, and according to the width of the plate, a plurality of parallel bolts are arranged in the middle of the connecting plate, and bolts are arranged on the left and right sides connected by the two plates. The distance between the bolts is greater than or equal to the diameter of the bolt ...

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Abstract

The invention provides a connecting device for a box type column and a box type beam and belongs to the field of boiler steel structures. The connecting device for the box type column and the box typebeam comprises a box type column, box type column connecting plates, a box type beam and box type beam connecting plates. The box type column and the box type column connecting plates are placed vertically. The box type column connecting plates are welded to a body of the box type column, the two box type column connecting plates on the body of the box type column are symmetrically arranged, thebox type beam connecting plates are welded to the end part of the box type beam, and the box type column connecting plates and the box type beam connecting plates are connected and fixed through bolts. The connecting device for the box type column and the box type beam further comprises a connecting gasket. The connecting gasket is placed at a connecting superposed part of the box type column andthe box type beam to adjust manufacturing tolerance. The connecting device for the box type column and the box type beam not only can meet the strength demand of the beam, but also can save the cost,and is convenient to process and manufacture, transport and mount.

Description

technical field [0001] The invention relates to a connection device for a box-shaped column and a box-shaped beam, belonging to the field of boiler steel structures. Background technique [0002] In recent years, my country's power industry has been developing at a high speed, and the unit level has gradually increased from 300MW to the current 1000MW level. The steel structure is an important part of the boiler as a whole. The reasonable overall layout of the steel structure is an important factor to reduce the cost of the boiler. , a 1000MW boiler will have a beam with a large span. This beam is generally a structural beam, which bears a relatively large load. The beam needs stronger stiffness to control the deformation of the beam itself. If it is designed as a traditional I-shaped section, then the beam The height will be very high. Due to the consideration of the stability of the beam itself, the flange web of the beam should meet the overall problems of the beam and its ...

Claims

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Application Information

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IPC IPC(8): F22B37/24
CPCF22B37/24
Inventor 董云霏王融赵咏梅
Owner HARBIN BOILER
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