Prefabricated irregular side column, prefabricated assembly type beam-column joint and construction method thereof

A beam-column joint, prefabricated assembly technology, applied in the direction of columns, piers, pillars, etc., can solve the problems of no concrete special-shaped columns, low axial compression ratio, inapplicability, etc., to improve the shear bearing capacity and increase the bearing area. , the effect of improving construction efficiency

Active Publication Date: 2017-07-14
北京宝贵石艺科技有限公司
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  • Application Information

AI Technical Summary

Problems solved by technology

However, the method proposed in this document is only suitable for conventional prefabricated special-shaped column-beam structures, and is not suitable for prestressed beam-column structures suitable for large spans
[0003] CN103669567A discloses a new type of post-earthquake repair steel special-shaped column-prestressed eccentric support frame, the steel special-shaped column is used in conjunction with steel strands, but this document does not have how to apply prestress to the concrete special-shaped column
This technology needs to solve the following technical problems: 1) The special-shaped column is different from the regular-shaped column, and its axial compression ratio is lower, and the shear failure of the limbs should be considered in the design of the special-shaped column; 2) The prediction of the special-shaped column Where to set the stress anchorage; 3) How to realize "strong node, weak member" in the special-shaped column-beam joint structure; 4) How to fix the upper column, lower column, and beam when the joint is cast-in-place

Method used

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  • Prefabricated irregular side column, prefabricated assembly type beam-column joint and construction method thereof
  • Prefabricated irregular side column, prefabricated assembly type beam-column joint and construction method thereof
  • Prefabricated irregular side column, prefabricated assembly type beam-column joint and construction method thereof

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Experimental program
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Effect test

Embodiment 1

[0043] Embodiment 1: as Figure 1-6 As shown, a prefabricated assembled concrete beam-column joint structure, which is applied to the connection of side columns and beams; includes prefabricated beams (2) and prefabricated columns (1), and the beam-column joint area is connected by steel structure;

[0044] Wherein, the prefabricated column (1) is a special-shaped column, and each limb of the special-shaped column corresponds to the prefabricated beam (2), and the core area and limbs of the prefabricated column (1) are provided with rectangular steel pipes (1-1); Concrete is poured into the rectangular steel pipe (1-1);

[0045] When the prefabricated column is a corner column, a total of 3 rectangular steel pipes (1-1) are arranged for the L-shaped column used;

[0046]When the prefabricated column is a side column of a non-corner column, four rectangular steel pipes (1-1) are used for the T-shaped column;

[0047] The adjacent rectangular steel pipes (1-1) of the prefabric...

Embodiment 2

[0053] Embodiment 2 is different from Embodiment 1 in that, as Figure 7-8 As shown, steel plates (1-3) are buried on both sides of the rectangular steel pipe (1-1) of the prefabricated column (1), and the steel plate (1-4) on the surface of the rectangular steel pipe (1-1) and the steel pipe connector (3) The lower steel plates (3-2) are connected by bolt assemblies (1-5), wherein the bolts are pre-embedded in the lower column. The steel pipe connector (3) is different from the separation method of the embodiment. In this embodiment, the steel pipe connector (3) corresponding to the rectangular steel pipe of the special-shaped side column is connected to the steel pipe (3-5) and the horizontal steel pipe (3-5). 4) Connect together; preferably, the connecting steel plate (3-5) is arranged on the lower side of the steel pipe connector and bolt holes are set, and the corresponding lower column is also embedded with bolts, and is fixed with the connecting steel plate through the ...

Embodiment 3

[0060] Embodiment three, such as Figure 9 As shown, as in the second embodiment, the steel pipe connector adopts an integral type, the difference is that a horizontal steel plate (3-6) is also arranged on the steel pipe connector, and the horizontal steel plate (3-6) is arranged on the branch of the lower column. The outside of the steel pipe connector corresponding to the rectangular steel pipe of the limb, and there is no gap with the upper surface of the lower column; during construction, the prefabricated beam (2) is placed on the horizontal steel plate (3-6), and the end of the prefabricated beam touches the On the vertical steel plate of the steel pipe connection.

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Abstract

Disclosed are a prefabricated irregular side column and a prefabricated assembly type beam-column joint of the irregular side column. Rectangular steel pipes (1-1) are arranged in a core area and limb parts of the prefabricated irregular side column. Steel plates or lacing bars are connected between the adjacent rectangular steep pipes (1-1) and obliquely arranged in the vertical direction. A beam-column joint area of the prefabricated assembly type beam-column joint is connected by adopting a mode of arranging shape steel connecting pieces in a steel structure or a concrete structure. Steel pipe connecting pieces (3) are cuboids with the upper and lower faces being opened. Two steel plates (3-1and 3-2) are arranged inside each steel pipe connecting piece. The upper steel plates (3-1) serve as the lower side anchoring ends of prestressed steel strand wires (1-4) of an upper column body. The lower steel plates (3-2) serve as the upper side anchoring ends of prestressed steel strand wires (1-4) of a lower column body. The prefabricated irregular side column, the prefabricated assembly type beam-column joint and a construction method thereof can effectively improve the shear resistance bearing capacity of the irregular side column, the connecting strength of the joint and the construction efficiency of the joint.

Description

technical field [0001] The patent of the invention belongs to the field of construction engineering, and specifically relates to a prefabricated special-shaped side column, a prefabricated assembled beam-column node and a construction method thereof. Background technique [0002] CN103850350A discloses a prefabricated assembly integral special-shaped column structure and its splicing construction method. The structure includes a prefabricated upper column, a prefabricated lower column and a prefabricated composite beam; the prefabricated upper column and the prefabricated lower column are embedded with channel steel, and the channel There are reserved bolt holes on the steel, and the adjacent prefabricated upper columns and prefabricated lower columns are connected together by bolts through channel steel to form a special-shaped column with a cast-in-place area that runs through up and down, and the cast-in-place area is partially equipped with encryption Stirrups; the prefa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04C3/34E04B1/58E04G21/00
CPCE04B1/185E04B1/30E04B1/58E04C3/34E04G21/00
Inventor 王昆
Owner 北京宝贵石艺科技有限公司
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