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Beam column joint and construction method thereof

A technology of beam-column joints and construction methods, which is applied in the direction of architecture and building construction, can solve the problems of high production and construction precision, heavy formwork laying workload, and long on-site construction period, and achieve simple construction steps and formwork laying The effect of small workload and short construction time on site

Active Publication Date: 2018-07-20
河南三禾建筑工程有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The object of the present invention is to provide a beam-column joint and its construction method, which will solve the problems of heavy template laying workload and long construction period on site in the semi-prefabricated beam-column joint in the prior art, as well as the production and construction methods in the full prefabrication method. Technical problems of high construction precision and high cost

Method used

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  • Beam column joint and construction method thereof
  • Beam column joint and construction method thereof
  • Beam column joint and construction method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0031] Reference attached Figure 1-3, a beam-column joint, including a composite column 1 and a composite beam 2, the composite column 1 includes a prefabricated column formwork 101 and a cast-in-place concrete column inner core 102, and the composite beam 2 includes a prefabricated beam formwork 201 and a cast-in-place concrete beam inner core 202, the top side of the prefabricated beam formwork 201 is provided with grouting holes and air vents (not shown in the figure), the prefabricated column formwork 101 of the composite column 1 and the prefabricated beam formwork 201 of the composite beam 2 are pre-embedded with hangers (not shown in the figure), prefabricated column formwork 101 is provided with column reinforcement 103 and stirrup (not shown in the figure), is provided with beam reinforcement 203,205 and stirrup 204 in prefabricated beam formwork 201, composite beam 2 The end 1-20cm is lapped on the top edge of the composite column 1, the composite beam 2 and the com...

Embodiment 2

[0046] The beam-column joint in this embodiment includes a composite column and two opposite composite beams (not shown in the figure) on the same straight line, and the end of the beam reinforcement is bent parallel to the end of the column reinforcement and anchored to the beam in the column node. Since the length of the beam reinforcement protruding from the prefabricated beam formwork and anchored in the beam-column joint is 35-40 times the diameter of the beam reinforcement, when the beam-column joint contains two opposite composite beams on the same straight line, the relative The beam reinforcement ends of the two composite beams are bent and then anchored to the beam-column joints, which can effectively solve the technical problem of insufficient accommodation space for the beam reinforcements of the two composite beams at the beam-column joints.

[0047] As an improvement of this embodiment, an elastic steel cable is provided at the node of the composite column and th...

Embodiment 3

[0049] The difference from Embodiment 1 and Embodiment 2 is that a beam-column joint in this embodiment includes a composite column 1 and a composite beam 2, and the cast-in-situ concrete column core 102 of the composite column 1 is also formed by pouring steel fiber concrete. The formula of the above-mentioned steel fiber concrete is 700-800 parts of Portland cement, 120-200 parts of power plant fly ash above grade II, 80-150 parts of silicon powder of 920U and above, 900-1100 parts of quartz sand, water-reducing 40-68 parts of agent, 150-175 parts of water, 75-100 parts of steel fiber with a length of 9-12 mm, and 200-400 parts of broken ceramic chips or construction crushed waste with a particle size of 0.1-35 mm. The beneficial effects of this embodiment are as follows: 1. The whole of the composite column is steel fiber concrete, compared with the prefabricated column of ordinary concrete or only the composite column of steel fiber concrete, its compressive capacity and st...

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Abstract

The invention provides a beam column joint and a construction method thereof. The beam column joint comprises a composite column and a composite beam. The composite column comprises a prefabricated column mould shell and a cast-in-place concrete column inner core, the composite beam comprises a prefabricated beam mould shell and a cast-in-place concrete beam inner core, and a grouting hole and anexhaust hole are formed in the top side of the prefabricated beam mould shell. The portion, within 1-20cm, of the end of the composite beam is in lap joint to the edge of the top side of the compositecolumn, and the composite beam and the composite column are connected through cast-in-place concrete to form the beam column joint. The end of a beam reinforcing steel bar of the composite beam extends out of the end of the prefabricated beam mould shell and is anchored in the cast-in-place concrete of the beam column joint. The length of the beam reinforcing steel bar anchored in the beam columnjoint is 35 to 40 times the diameter of the beam reinforcing steel bar. The construction method comprises the following steps that the prefabricated column mould shell is hoisted to a predetermined position; the cast-in-place concrete column inner core of the composite column is poured and formed; the prefabricated column mould shell is hoisted and the portion, within 1-20cm, of the end is in lapjoint to the edge of the top side of the prefabricated column mould shell; a formwork is arranged at the beam column joint; the cast-in-place concrete beam inner core of the composite beam is pouredand formed; and concrete at the beam column joint is poured.

Description

technical field [0001] The invention relates to the technical field of construction, in particular to a beam-column joint and a construction method thereof. Background technique [0002] In the existing field of prefabricated buildings, there are mainly semi-prefabricated and fully prefabricated methods for beam-column joints in the frame system: [0003] (1) Semi-prefabricated method: the column is bound with on-site reinforcement and concrete is poured, the beam is a composite beam, the lower part of the composite beam is a prefabricated part, and the upper part is a cast-in-place part; the composite beam and the cast-in-place column are connected by cast-in-place concrete , forming cast-in-place beam-column joints. This kind of beam-column joint and its construction method still need to bind the column reinforcement on site, set up the column, the cast-in-place part of the composite beam and the formwork at the beam-column joint. , On-site construction period is long. ...

Claims

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Application Information

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IPC IPC(8): E04B1/21
CPCE04B1/21
Inventor 何贵中
Owner 河南三禾建筑工程有限公司
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