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Prefabricated concrete frame structure with rear-mounted longitudinal bars in prefabricated beam column built-in corrugated steel pipes and manufacturing method thereof

A technology of prefabricated concrete and corrugated steel pipes, which is applied in the direction of building construction and construction, can solve the problems of poor connection effect, complicated bolt connection process, and low construction efficiency, and achieve simple and fast construction, strong operability, and wide application prospects Effect

Inactive Publication Date: 2019-11-19
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention aims to solve the problems of the beam-column joint connection of the existing prefabricated assembled concrete structure, the bolt connection process adopted is too complicated, the construction efficiency is low, and the connection effect is poor, and it provides a post-installation in the prefabricated beam-column built-in corrugated steel pipe. Assembled concrete frame structure with longitudinal reinforcement and manufacturing method thereof

Method used

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  • Prefabricated concrete frame structure with rear-mounted longitudinal bars in prefabricated beam column built-in corrugated steel pipes and manufacturing method thereof
  • Prefabricated concrete frame structure with rear-mounted longitudinal bars in prefabricated beam column built-in corrugated steel pipes and manufacturing method thereof
  • Prefabricated concrete frame structure with rear-mounted longitudinal bars in prefabricated beam column built-in corrugated steel pipes and manufacturing method thereof

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specific Embodiment approach 1

[0027] Specific Embodiment 1: In this embodiment, a prefabricated concrete frame structure with post-installed longitudinal reinforcement in corrugated steel pipes built in prefabricated beams and columns includes prefabricated concrete columns 2 and prefabricated concrete composite beams 10; the prefabricated concrete columns 2 and precast concrete Side-span side node connection, side-span mid-node connection and mid-span mid-node connection are performed between the composite beams 10;

[0028] A single prefabricated concrete column 2 is provided with corrugated steel pipes 7 at four corners and finish-rolled rebar 11; the finish-rolled rebar 11 is located in the center of the corrugated steel pipe 7, and the finish-rolled steel pipe 7 is realized by pouring micro-expansion fine stone self-compacting concrete into the corrugated steel pipe 7 Reliable connection of threaded steel 11 and corrugated steel pipe 7; stirrups 9 and small-diameter hot-rolled steel bars 8 are arranged...

specific Embodiment approach 2

[0030] Embodiment 2: This embodiment differs from Embodiment 1 in that the strength of the micro-expanded fine stone self-compacting concrete is not lower than that of the precast concrete column 2 . Others are the same as the first embodiment.

specific Embodiment approach 3

[0031] Specific embodiment three: In this embodiment, a manufacturing method of a prefabricated beam-column built-in corrugated steel pipe with prefabricated concrete frame structure with post-installed longitudinal reinforcement is specifically carried out according to the following steps:

[0032] 1. Bind corrugated steel pipes 7, small-diameter hot-rolled steel bars 8 and stirrups 9 to form a steel bar skeleton according to the design requirements; formwork is placed on the pedestal and concrete is poured to obtain precast concrete columns 2;

[0033] 2. Bind the full-length corrugated steel pipe 1, U-shaped stirrup 3 and waist bar 4 into a steel skeleton, and electroslag weld the U-shaped stirrup 3, full-length corrugated steel pipe 1 and waist bar 4; the thickness of the protective layer of the steel bar on the beam side not less than 45mm; extrude the composite beam to form a through hole 6 along the beam length; after the concrete of the composite beam is hardened, rotat...

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Abstract

The invention provides a prefabricated concrete frame structure with rear-mounted longitudinal bars in prefabricated beam column built-in corrugated steel pipes and a manufacturing method thereof andrelates to the technical field of civil engineering construction, in particular to the prefabricated concrete frame structure with the rear-mounted longitudinal bars in the prefabricated beam column built-in corrugated steel pipes and the manufacturing method thereof. The prefabricated concrete frame structure is provided for solving the problems that beam column nodes of an existing prefabricatedconcrete frame structure are connected through the bolt connecting process, the process is too complex, the construction efficiency is low and the connecting effect is poor. The prefabricated concrete frame structure comprises prefabricated concrete columns and prefabricated concrete superposed beams. The prefabricated concrete columns are vertically connected by arranging finishing rolled deformed bars in corrugated steel pipes at the four column corners of the prefabricated concrete columns and pouring concrete. The upper and lower layers of the finishing rolled deformed bars can be connected through finishing rolled deformed bar connectors. The prefabricated concrete superposed beams are connected with prefabricated column steel bars through beam bottom steel bars anchored in the corrugated steel pipes and beam top steel bars bound on site. The prefabricated concrete frame structure with the rear-mounted longitudinal bars in the prefabricated beam column built-in corrugated steel pipes is applied to the technical field of prefabricated concrete structure construction.

Description

technical field [0001] The invention relates to the technical field of civil engineering construction, in particular to an assembled concrete frame structure with post-installed longitudinal reinforcement in prefabricated beam-column built-in corrugated steel pipes and a manufacturing method thereof. Background technique [0002] In the prefabricated concrete frame structure, the beam-column joint connects the beam-column into a whole, plays the role of load transfer and seismic energy dissipation, and is the key of the prefabricated concrete frame structure. The design of beam-column joints of prefabricated concrete structures generally meets the basic requirements of reasonable force, good integrity, and aesthetics. Due to the different construction techniques, the connection methods of beam-column joints are also diversified, including dry connection, wet connection and so on. However, most of these connection methods are too ideal, such as dry connection, the bolt conne...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04B1/19E04B1/20
CPCE04B1/19E04B1/20
Inventor 郑子玥郑文忠苏志明王英
Owner HARBIN INST OF TECH
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