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High-bending-resistance hold hoop joint mechanically connected with precast concrete beam-column pile rods

A prefabricated concrete and mechanical connection technology, applied in sheet pile walls, foundation structure engineering, construction, etc., can solve the problems of short service life, non-environmental protection of on-site pouring, long construction period, etc., to eliminate processing deviation and assembly gap, improve Connection quality and effect, effect of avoiding welding process operations

Pending Publication Date: 2019-07-09
NANJING JULI INTELLIGENT MFG TECH INST CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The current concrete poles, wind power concrete tower poles, etc., the joints in the middle are mainly connected by the large flanges of each pile head, which consumes a lot of steel and requires a lot of manual welding. When assembling, high-strength bolts are used to connect, which can only be done manually. Tighten the bolts, so the overall cost of each joint is about 1,000 yuan, the quality of the connection is also unstable due to human influence, and the flange and the connecting bolts are exposed, the anti-corrosion effect is poor, and the service life is short
However, prefabricated piles are not allowed to have pile joints in the soft soil and quicksand liquefaction geological conditions, which affects the popularization and use of prefabricated piles. Therefore, most of the cast-in-place piles without joints are used as pile foundations. The project quality is unstable and the cost is high. On-site pouring is not environmentally friendly, the concrete maintenance period is long, the construction period is long, and the construction efficiency is low

Method used

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  • High-bending-resistance hold hoop joint mechanically connected with precast concrete beam-column pile rods
  • High-bending-resistance hold hoop joint mechanically connected with precast concrete beam-column pile rods
  • High-bending-resistance hold hoop joint mechanically connected with precast concrete beam-column pile rods

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Such as figure 1 As shown, the hoop joint of the strong bending mechanically connected precast concrete beam-column pile includes two oppositely arranged reinforcing hoops 1, and several reinforcing ribs 2 are fixedly connected inside each reinforcing hoop; A ring groove 3 and a ring groove 4 are horizontally spaced on the outer circular surface, and a stress ring 5 is arranged in the ring groove, and a sealing ring 6 is arranged in the ring groove; an outer hoop is set outside the two reinforcing hoops 7. A groove 13 is provided on the inner wall of the outer ferrule corresponding to the stress ring, and a threaded fastener 8 is provided on the outer ferrule to pass through the groove. The threaded fastener is used for The outer hoop and the stress ring are abutted and fixed on the reinforcing hoop; a sealing sleeve 9 is sleeved on the outer side of the outer hoop, and the length of the sealing sleeve is not less than the length of the outer hoop.

[0042] The ring gr...

Embodiment 2

[0055] Such as Figure 2-5 As shown, a strong bending mechanically connected prefabricated concrete beam-column pile rod connection structure is to set the hoop joint as described in Embodiment 1 at the ends of two interconnected precast concrete beam-column pile rods 12; the sealing sleeve The seal is fixedly sleeved on the outer side walls of the ends of the two prefabricated concrete beams and columns connected to each other.

[0056]The hoop joint includes two oppositely arranged reinforcing hoops 1, a number of reinforcing ribs 2 are fixedly connected inside each reinforcing hoop; a ring groove 3 and a ring groove are horizontally spaced on the outer circular surface of each reinforcing hoop 4. There is a stress ring 5 in the ring groove, and a sealing ring 6 in the ring groove; an outer ferrule 7 is set outside the two reinforcing hoops, and the inner wall of the outer ferrule corresponds to the stress ring A groove 13 is provided, and a threaded fastener 8 provided thr...

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Abstract

The invention relates to a high-bending-resistance hold hoop joint mechanically connected with a precast concrete beam-column pile rod. The hold hoop joint comprises two reinforcing hoops which are oppositely arranged, and a plurality of reinforcing ribs are fixedly connected to the inner side of each reinforcing hoop; a positioning groove and a sealing groove are horizontally formed in the outercircle face of each reinforcing hoop at intervals, a stress ring is arranged in each positioning groove, and a sealing ring is arranged in each sealing groove. An outer hoop sleeves the outer side ofthe two reinforcing hoops, a groove corresponding to each positioning groove is formed in the inner side wall of the outer hoop, a threaded fastener penetrating through the grooves is arranged on theouter hoop, and the threaded fastener is used for fixing the outer hoop and the stress rings to the reinforcing hoops in an abutting mode together. According to the hold hoop joint, manual welding process operation is avoided, the quality is controllable, mechanical connection is reliable, the labor intensity is reduced, the anti-corrosion performance is good, the steel consumption is extremely low, and the product cost and the construction cost are greatly reduced.

Description

technical field [0001] The invention relates to a hoop joint for strong bending mechanically connecting prefabricated concrete beam-column piles. Background technique [0002] The current concrete poles, wind power concrete tower poles, etc., the joints in the middle are mainly connected by the large flanges of each pile head, which consumes a lot of steel and requires a lot of manual welding. When assembling, high-strength bolts are used to connect, which can only be done manually. Tighten the bolts, so the overall cost of each joint is about 1,000 yuan, the quality of the connection is also unstable due to human influence, and the flange and the connecting bolts are exposed, the anti-corrosion effect is poor, and the service life is short. However, prefabricated piles are not allowed to have pile joints in the soft soil and quicksand liquefaction geological conditions, which affects the popularization and use of prefabricated piles. Therefore, most of the cast-in-place pil...

Claims

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Application Information

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IPC IPC(8): E04B1/58E02D5/52
CPCE04B1/5837E02D5/526
Inventor 李全民袁志洲谢学云李建宇颜景凯
Owner NANJING JULI INTELLIGENT MFG TECH INST CO LTD
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