Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Fabricated concrete structure joint connection prefabricated part and connection mode thereof

A concrete structure and node connection technology, applied in the direction of structural elements, building components, building reinforcements, etc., can solve the problem of inability to detect whether the steel sleeve grouting material is filled, the connection strength of two connecting steel bars cannot be guaranteed, and the grouting quality of grouting can be solved. The quality decline and other problems, to achieve the effect of adjustable longitudinal connection length, convenient hoisting, and simplifying the difficulty of installation

Pending Publication Date: 2019-03-08
江苏金砼预制装配建筑发展有限公司
View PDF0 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the joint connection types between concrete columns mainly include sleeve connection and grout-anchor connection. In the existing sleeve connection, the grouting joint of the steel sleeve needs to be provided with a grouting port and a grouting port on the side wall of the steel sleeve. However, because it is poured entirely in the concrete prefabricated part, the grouting is performed through the grouting pipe exposed outside the concrete prefabricated part. On the one hand, the sleeve is poured at the plastic hinge of the concrete column. Due to the different ductility of the sleeve and the concrete, it is easy to break during vibration. The two ends of the sleeve are damaged intensively. On the other hand, the quality of grouting is easily affected by factors such as the on-site operating environment, resulting in a decline in grouting quality. The connection strength cannot be guaranteed and needs further improvement
The quality of slurry anchor joints mostly depends on the operation level of on-site workers, and the connection quality cannot be verified one by one

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Fabricated concrete structure joint connection prefabricated part and connection mode thereof
  • Fabricated concrete structure joint connection prefabricated part and connection mode thereof
  • Fabricated concrete structure joint connection prefabricated part and connection mode thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Example 1: as figure 1 , 2 As shown, a prefabricated concrete is connected to prefabricated parts with vertical longitudinal reinforcement, including prefabricated upper truncated column 1, prefabricated lower truncated column 2, and prefabricated composite beam 5. The prefabricated composite beam 5 is divided into two sections, and the two sections are prefabricated The joint area 4 is formed between the composite beam 5 and the prefabricated upper sectional column 1 and the prefabricated lower sectional column 2, and the two sections of the prefabricated composite beam 5 are provided with horizontal reserved longitudinal reinforcement 5.1 running through its length direction and protruding from its two ends , the horizontal reserved longitudinal reinforcement 5.1 between the two sections of prefabricated composite beams is connected through the steel connection sleeve 6, and the connection sleeve 6 can be selected according to the actual situation during the connectio...

Embodiment 2

[0024] Embodiment 2: When carrying out construction work, after splicing the prefabricated lower section column 2 and the two sections of prefabricated composite beams 5, a spliced ​​node area 4 is formed, and the spliced ​​node 4 area is filled with concrete pouring; The semi-grouting steel bar joint 3 used for steel bar connection is screwed on several reserved longitudinal reinforcements 2.1 protruding from the upper end surface of the prefabricated lower column 2; the prefabricated upper column 1 is hoisted directly above the prefabricated lower column 2, and then Grouting is carried out in the connecting sleeve 3.1 of the semi-grouting steel bar joint 3 for vertical steel bar connection. After the grouting is full, several upper reserved longitudinal bars 1.1 protruding from the lower end surface of the prefabricated upper section column 1 are inserted into the connecting sleeve 3.1, and the upper prefabricated When the longitudinal reinforcement 1.1 is inserted into the c...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides a fabricated concrete structure joint connection prefabricated part, which includes a prefabricated upper truncated column and a prefabricated lower truncated column. The prefabricated upper truncated column is provided with a plurality of upper reserved longitudinal bars penetrating through the length direction of the prefabricated upper truncated column and extending out of the lower end face of the prefabricated upper truncated column, and the prefabricated lower truncated column is provided with a plurality of lower reserved longitudinal bars penetrating through thelength direction of the prefabricated lower truncated column and extending out of the upper end face of the prefabricated lower truncated column. The fabricated concrete structure joint connection prefabricated part is characterized in that the ends of the lower reserved longitudinal bars are provided with external threads, the upper reserved longitudinal bars are connected with the lower reservedlongitudinal bars through semi-grouted steel bar joints for vertical steel bar connection, and the semi-grouted steel bar joints for vertical steel bar connection are located between the prefabricated upper truncated column and the prefabricated lower truncated column. The invention further provides a fabricated concrete structure joint connection mode. According to the fabricated concrete structure joint connection prefabricated part, the upper reserved longitudinal bars are connected with the lower reserved longitudinal bars through the semi-grouted steel bar joints for vertical steel bar connection, on the one hand, the condition that an original connecting sleeve is located at a plastic hinge position of concrete, and the rupture degree during vibration is large due to the inconsistency of the ductility is avoided, and on the other hand, slurry filling can be ensured.

Description

technical field [0001] The invention belongs to the field of construction engineering, and in particular relates to an assembled concrete structure node connection prefabricated part and a connection method thereof. Background technique [0002] At present, the joint connection types between concrete columns mainly include sleeve connection and grout-anchor connection. In the existing sleeve connection, the grouting joint of the steel sleeve needs to be provided with a grouting port and a grouting port on the side wall of the steel sleeve. However, because it is poured entirely in the concrete prefabricated part, the grouting is performed through the grouting pipe exposed outside the concrete prefabricated part. On the one hand, the sleeve is poured at the plastic hinge of the concrete column. Due to the different ductility of the sleeve and the concrete, it is easy to break during vibration. The two ends of the sleeve are damaged intensively. On the other hand, the quality ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): E04B1/21E04C5/16
CPCE04B1/21E04C5/165
Inventor 张晨张吉华
Owner 江苏金砼预制装配建筑发展有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products