CN203365036U

CN203365036U - Tension frame for anchoring force test

Info

Publication number: CN203365036U
Application number: CN 201320474065
Authority: CN
Inventors: 林倩
Original assignee: Sinohydro Bureau 7 Co Ltd
Current assignee: Sinohydro Bureau 7 Co Ltd
Priority date: 2013-08-05
Filing date: 2013-08-05
Publication date: 2013-12-25
Anticipated expiration: 2023-08-05

Abstract

Provided is a tension frame for anchoring force test, and particularly a tension frame for testing the anchoring force of an anchoring agent indoors. The tension frame includes columns, a top board, and a bottom board. The middle of the bottom board is provided with an installing hole, and the columns are arranged between the four corners of the top board and the bottom plate. The middle of the top board is provided with a universal joint hole, a universal joint is arranged in the universal joint hole to form the tension frame having an upper part being capable of automatic adjustment. The tension frame provided is advantageous in that (1) the structure is simple, the use is convenient, a test specimen is not damaged during the test and the anchoring capability between a steel bar and the anchoring agent can be tested; (2) the force transmission mechanism is a movable universal joint which can be automatically adjusted, the force bearing of the test specimen and the tension frame can be on the same axis along the increasing of the tension force, so that the testing accuracy can be guaranteed; and (3) the bottom board and the top board are connected by steel columns with enough stiffness, so that the tension force greater than the tension force of the test specimen itself can be born; and the tension frame is convenient for hand holding during the assembling and disassembling.

Description

A kind of anchor force test tension frame

Technical field:

Tension frame is used in a kind of anchor force test, is mainly used in the anchor force of indoor check Anchor Agent.

Background technology:

At present, the anchor force test specimen of Anchor Agent is to adopt weldless steel tube to do the simulation hole, and pipe thickness is not less than 2mm, and bore is not less than 50mm, and length is 400mm, an end mouth of pipe sealing, the surfacing of the other end mouth of pipe; The body of rod adopts hot-rolled ribbed steel bars for ther reinforcement of concrete, and the trade mark is HRB335 or HRB400, and diameter is 25mm, and length is 520mm; The body of rod is inserted and to have poured in the simulation hole of Anchor Agent slurry, until the bottom, hole, after the body of rod is positioned at simulation ，Yan aperture, center, hole and scrapes off unnecessary Anchor Agent, the Anchor Agent slurry is concordant with vent surface, and anchorage length is 400mm.Anchor force test is that anchor force test specimen exposed steel bar one end is held in the lower chuck of universal testing machine, and the anchor force test specimen other end is held in the upper grip of universal testing machine and is stretched, the anchor force between test reinforcing bar and Anchor Agent.The shortcoming of this method of testing is: the steel pipe of anchor force test specimen exposed steel bar one end and the other end directly is held in the chuck of universal testing machine, directly the clamping steel pipe is tested, easily destroy test specimen, and can not test the anchoring ability between reinforcing bar and Anchor Agent.

Summary of the invention:

Problem to be solved in the utility model for above deficiency provides a kind of do not destroy test specimen exactly, and can test the proving installation of the anchoring ability between reinforcing bar and Anchor Agent.Its technical scheme is as follows:

It comprises column, top board and base plate, and the middle part of base plate has mounting hole, between four jiaos of top board and base plate, column is installed.Have universal knothole at the middle part of top board, universal joint is installed in universal knothole, form the tension frame that top can be regulated automatically.

The beneficial effect the utlity model has is:

1, the utility model is simple in structure, easy to use, does not destroy test specimen during test, and can test the anchoring ability between reinforcing bar and Anchor Agent.

2, force transferring structure of the present utility model is movable universal joint, can automatically regulate, and along with the increase of tension, guarantees that test specimen and tension frame are stressed on same axis, has guaranteed testing precision;

3, the utility model base plate and top board, with there being the steel column of enough stiffness to be connected, can guarantee to bear the tension that is greater than test specimen itself, and hand-held while facilitating the tension frame loading, unloading, alleviate tension frame and conduct oneself with dignity, and have saved material, are easy to carry;

4, the utility model, by column connecting bottom board and top board, facilitates the dismounting of test specimen.

The accompanying drawing explanation:

Fig. 1 is the utility model structural representation;

Fig. 2 is that the A of Fig. 1 is to view;

Fig. 3 is that the B of Fig. 1 is to view;

Fig. 4 is that the C of Fig. 1 is to view;

Fig. 5 is that the D of Fig. 1 is to view;

Fig. 6 is the utility model gimbal structure schematic diagram;

Fig. 7 is Fig. 6 vertical view;

Fig. 8 is the test specimen structural representation that the utility model relates to;

Fig. 9 is Fig. 8 vertical view.

Embodiment:

Referring to Fig. 1～Fig. 9, the utility model comprises column 1, top board 3 and base plate 4, and the middle part of base plate 4 has mounting hole 8, and mounting hole 8 can be for square, trapezoidal or circular, the reinforcing bar 9 that can guarantee test specimen 10 passes thus, between four jiaos of top board 3 and base plate 4, by screw 7 and nut 5, column 1 is installed.Have universal knothole 6 at the middle part of top board 3, the interior installation universal joint 2 of universal knothole 6, form the tension frame that top can be regulated automatically.

Described universal knothole 6 is circular, guarantees that universal joint passes.

The material of universal joint 2, specification can be born the tension that is greater than test specimen self.

While carrying out tensile test, as shown in Figure 1, Figure 6, Figure 7, the universal knothole 6 by universal joint 2 through top board 3 is installed in the upper grip of universal testing machine, forms tension frame; Mounting hole 8 by the reinforcing bar of test specimen 10 9 through base plate 4 is installed in the lower chuck of universal testing machine.Start universal testing machine, along with the increase of tension, universal joint is regulated automatically, and test specimen and tension frame are stressed to be adjusted on same axis gradually.

Claims

1. an anchor force is tested and is used tension frame, it is characterized in that comprising column (1), top board (3) and base plate (4), the middle part of base plate (4) has mounting hole (8), between four jiaos of top board (3) and base plate (4), column (1) is installed, have universal knothole (6) at the middle part of top board (3), universal joint (2) is installed in universal knothole (6), is formed the tension frame that top can be regulated automatically.

2. tension frame is used in the anchor force test according to claim 1, it is characterized in that universal knothole (6) is for circular.