Adjustable wire rod connector
A connector and adjustable technology, which is applied in construction, infrastructure testing, infrastructure engineering, etc., can solve problems such as uneven stress on steel strands, inability to adjust the tension of steel strands, etc., to achieve force uniform effect
Active Publication Date: 2016-12-14
ENG DETECTION & REINFORCING CO LTD OF HENAN PROVINCIAL COMM PLANNING SURVEY & DESIGN INST CO LTD
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- Description
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- Application Information
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Problems solved by technology
When the steel strand is connected with the pre-embedded finish-rolled threaded steel bar on the top of the anchor pile using the traditional non-adjustable pole connector, the tension of the steel strand cannot be adjusted, resulting in insufficient stress during the steel strand test. all
Method used
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[0010] Such as figure 1 As shown, the adjustable pole connector of the present invention includes an adjusting rod 1, a connecting sleeve 2 and a connecting head; the connecting sleeve 2 is provided with a perforation on the wall of the barrel opening, and the connecting head is Step shaft structure, the large-diameter end 3.1 of the connector is located in the connecting sleeve 2 and the small-diameter end 3.2 extends out of the connecting sleeve 2 from the perforation; The inner wall of the cylinder 2 is screwed; the end of the adjustment rod 1 located outside the connecting sleeve 2 is provided with a right-handed threaded hole 5 for screwing with the finish-rolled rebar 4; the connecting head extending out of the connecting sleeve 2 The outer peripheral surface of the small-diameter end 3.2 is provided with a left-hand thread and is screwed with an anchor ring sleeve 6; the inner hole of the anchor ring sleeve 6 is composed of a cylindrical hole section and a circular tabl...
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The invention discloses an adjustable wire rod connector. The adjustable wire rod connector comprises an adjusting rod, a connecting sleeve and a connecting head. A penetrating hole is formed in the sleeve wall, relative to a sleeve opening, of the connecting sleeve. The connecting head is of a stepped shaft structure. The large-diameter end of the connecting head is located in the connecting sleeve, and the small-diameter end of the connecting head extends out of the connecting sleeve from the penetrating hole. The periphery of the adjusting rod is provided with a left-hand thread and connected with the inner wall of the connecting sleeve in a threaded manner. A right-hand threaded hole for being connected with finely-rolled threaded steel in a threaded manner is formed in the end, located outside the connecting sleeve, of the adjusting rod. The periphery of the portion, extending out of the connecting sleeve, of the connecting head is provided with a left-hand thread and connected with an anchoring ring sleeve in a threaded manner. An inner hole of the anchoring ring sleeve is composed of a cylindrical hole segment and a circular truncated cone hole segment. A clamping piece is arranged in the circular truncated cone hole segment. A spiral compression spring is arranged in the cylindrical hole segment. The adjustable wire rod connector has the beneficial effects that it is guaranteed that the stress of all steel strands in a single-pile vertical static-load test is uniform, and the purpose that the tension degree of the steel strands is adjusted initially is achieved.
Description
technical field [0001] The invention relates to a counter force pulling device in a single pile vertical static load test, in particular to an adjustable pole connector. Background technique [0002] In the process of civil construction, the purpose of single pile vertical static load test is to provide reference for pile foundation design or to check the pile quality of engineering piles. Single pile vertical static load test must have a loading reaction device to provide reaction force . Chinese invention (Patent No.: ZL201320716270.3) discloses a "single pile vertical static load test reaction pull device", the device is connected between two pre-anchor parts It is suitable for large tonnage and super large tonnage single pile vertical static load test. Compared with the test loading force, the breaking force of the steel strand is small. During the single pile vertical static load test, multiple steel strands or even all the steel strands are continuously broken due to...
Claims
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IPC IPC(8): E02D33/00
CPCE02D33/00
Inventor 宋广杨磊尹俊涛吴佳桐姜自奇李志斌徐海标杨鹏侯智超吴煜宇张淑雅康琼
Owner ENG DETECTION & REINFORCING CO LTD OF HENAN PROVINCIAL COMM PLANNING SURVEY & DESIGN INST CO LTD