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Reinforcing method for touched nodes of existing beam and lacing bar type lattice steel column

An existing beam and lattice steel technology, applied in building construction, building maintenance, construction, etc., can solve problems such as production process changes, inability to meet, structural damage, etc., to achieve high lateral stiffness, enhanced shear stiffness, The effect of a clear force transmission path

Active Publication Date: 2014-05-21
ZHEJIANG TIANDI ENVIRONMENTAL PROTECTION TECH CO LTD +1
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Problems solved by technology

In existing steel structure projects, structural defects caused by long-term use, changes in production technology, structural damage caused by natural disasters and other factors make the structure unable to meet the requirements of safety and applicability, which requires reinforcement of the corresponding steel structure projects and remodeling

Method used

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  • Reinforcing method for touched nodes of existing beam and lacing bar type lattice steel column
  • Reinforcing method for touched nodes of existing beam and lacing bar type lattice steel column
  • Reinforcing method for touched nodes of existing beam and lacing bar type lattice steel column

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Embodiment Construction

[0017] In order to make the existing beam pass through the center of the striped lattice steel column smoothly, the striped lattice steel column cannot be set at the position where the striped lattice steel column collides with the existing beam, so the striped lattice steel The shear stiffness of the column is weakened to some extent, which requires local reinforcement of the colliding nodes. The present invention provides a method for reinforcing the joints where existing beams and stripped lattice steel columns collide, comprising the following steps:

[0018] 1. If image 3 As shown, the first square steel pipe column 11 , the second square steel pipe column 12 , the third party steel pipe column 13 , the fourth square steel pipe column 14 and the strip 2 form a striped lattice steel column. The square steel pipe columns are connected by the square steel pipe beams 4 and the strips 2 to strengthen the coordinated stress between the strip-style lattice steel columns.

[0...

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Abstract

The invention discloses a reinforcing method for touched nodes of an existing beam and a lacing bar type lattice steel column. The lacing bar type lattice steel column is composed of four square steel pipe columns and lacing bars, and the existing beam penetrates through the center of the lacing bar type lattice steel column. In order to enable the existing beam to smoothly penetrate through the center of the lacing bar type lattice steel column, the lacing bars are not arranged on the lacing bar type lattice steel column at the touched nodes, so the shear stiffness of the touched nodes is weakened to some extent. The shear stiffness and the rigidity of the lacing bar type lattice steel column at the touched nodes are enhanced by utilizing a box-shaped reinforcement structural system formed by reinforced steel plates and the square steel pipe columns of the lacing bar type lattice steel column. According to the reinforcing method, the shear resistance and the stress performance at the touched nodes of the lacing bar type lattice steel column and the existing beam can be effectively improved, in addition, power transmission system design of the nodes is clear, the stress is reasonable, and on-site construction is facilitated.

Description

technical field [0001] The invention relates to the field of steel structure engineering expansion engineering, in particular to a reinforcement method suitable for the joints where existing beams and stripped lattice steel columns collide. Background technique [0002] With the development of the national economy, steel structure engineering has been widely used in production and life. In existing steel structure projects, structural defects caused by long-term use, changes in production technology, structural damage caused by natural disasters and other factors make the structure unable to meet the requirements of safety and applicability, which requires reinforcement of the corresponding steel structure projects and remodeling. [0003] In steel structure reinforcement and extension projects, the design of the joints where the existing beams pass through the new structural columns is an important part of the structural design. The mechanical performance of the intersecti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04G23/02E04B1/58
Inventor 龚顺风程鹏程波任晓阁楼志杰邱鹤
Owner ZHEJIANG TIANDI ENVIRONMENTAL PROTECTION TECH CO LTD
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