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Anti-seismic energy-dissipation structure for anchor rod

An anchor rod and energy dissipation technology, which is applied in basic structure engineering, construction, excavation, etc., can solve the problems of easy damage to the anchor rod structure and large seismic force, and achieve the effect of reducing tensile force and reducing the impact of seismic force.

Pending Publication Date: 2017-05-31
CHINA RAILWAY ERYUAN ENG GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Under earthquake conditions, the instantaneous seismic force is large, and the conventional anchor structure is prone to damage

Method used

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  • Anti-seismic energy-dissipation structure for anchor rod
  • Anti-seismic energy-dissipation structure for anchor rod

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Experimental program
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Effect test

Embodiment Construction

[0013] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0014] refer to figure 1 with figure 2 , the anti-seismic energy dissipation structure of the anchor rod of the present invention, the anchor rod consisting of the anchor rod reinforcement 11 and the grouting body 12 is located in the anchor hole 10, and in the axial direction of the anchor rod, the outer end of the anchor rod reinforcement 11 is connected by a reinforcement The anti-seismic and energy-dissipating member is connected to the device 21, and the anti-seismic and energy-dissipating member is composed of a front section steel bar 20c, a steel spring 20a and an anchor head 20b connected as one. A support structure 30 is set on the outer slope of the port of the anchor hole 10, the front end of the steel sleeve 23 is supported on the surface of the support structure 30, the steel spring 20a is located in the steel sleeve 23, the anchor head ...

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Abstract

The invention provides an anti-seismic energy-dissipation structure for an anchor rod. By adoption of the anti-seismic energy-dissipation structure for the anchor rod, the deformation adaptability of the anchor rod can be improved, and the structure of the anchor rod is prevented from being damaged when an earthquake occurs. The anchor rod composed of an anchor rod steel bar and a grouting body is located in an anchor hole, and in the axis direction of the anchor rod, the outer end of the anchor rod steel bar is connected with the anti-seismic energy-dissipation structure through a steel bar connector. The anti-seismic energy-dissipation structure is composed of a front steel bar section, a steel spring and an anchor head, wherein the front steel bar section, the steel spring and the anchor head are connected into a whole. A supporting structure is arranged on the outer slope surface of an end opening of the anchor hole. The front end of a steel sleeve is supported on the surface of the supporting structure. The steel spring is located in the steel sleeve. The anchor head is fixedly connected with a steel base plate in an anchoring mode, and the steel base plate is arranged at the rear end of the steel sleeve.

Description

technical field [0001] The invention belongs to the technical field of civil engineering, and in particular relates to an anti-seismic energy dissipation structure of an anchor rod. Background technique [0002] Anchor bolts are widely used and are effective engineering measures to strengthen rock and soil, and can be used in projects that allow moderate deformation of the anchorage ground. Commonly used anchors include anchor frame beams, soil nail walls, anchor retaining walls, etc. [0003] When the anchor rod is used to strengthen the rock and soil mass, generally after drilling, the steel bar is inserted into the rock and soil mass to a certain depth, and the grouting body is bonded to the rock and soil mass, and the end is locked by the anchor head. Since the anchor rod body is reinforced concrete Components are rigid components, and the steel bars at the anchor head are generally consolidated in reinforced concrete components such as beams and slabs, and the ability ...

Claims

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Application Information

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IPC IPC(8): E02D5/74E02D17/20
CPCE02D5/74E02D17/20
Inventor 叶世斌李井元丁兆锋魏永幸李安洪曾永红姚裕春吴沛沛龚建辉
Owner CHINA RAILWAY ERYUAN ENG GRP CO LTD
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