CN206862607U - A kind of new structure slow test loading experiment frame - Google Patents

Abstract

The utility model discloses a novel structural static test loading test frame. The device is composed of a supporting column, a combined beam, a top beam, a hydraulic jack, a self-adjusting electric hoist for the beam, an electric hoist for hoisting a test piece, and a loading support. It is characterized in that: the bottom of the support column is fixed on the rigid ground through bolts, the combined beam is connected with the support column through the bolt holes, and the height can be adjusted; the bottom of the combined beam is provided with a track, a hydraulic jack and an electric hoist for hoisting the test piece It is connected to the combined beam through the track, and the position can be adjusted freely; the two roof beams are respectively connected to the tops of the support columns on both sides by bolts, and the self-adjusting electric hoist of the beam is connected to the roof beam by bolts. The loading support is located directly below the combined beam and placed on a rigid ground. The overall structure design of the new structural static test loading test frame of the utility model is safe and reasonable, and can realize the self-adjusting combination Static test requirements.

Description

A new type of structural static test loading test frame

Technical field:

The utility model belongs to the field of static test equipment, in particular to a novel structural static test loading test frame. This device can be applied to large and medium-sized structural static tests, such as bending member experiments, compression member experiments, steel roof truss static load experiments, large grid structure experiments, pile bearing capacity tests, etc., and can meet most structural static tests. Require.

Background technique:

Structural static test is an important means to study structural safety, properties of new structural materials, and structural failure forms, and it is also a common method for testing structural strength, stiffness, and crack resistance. The reliability and scientificity of the test method have extremely important guiding significance for structural design and safety performance evaluation. In addition, structural static tests are often used in performance testing of new materials, teaching and scientific research. Commonly used structural static loading test racks have the following disadvantages:

1. Due to the heavy weight of the test frame and the variety of experimental samples, the experimental operation is troublesome and the workload is heavy;

2. In order to meet different experimental requirements, the beam needs to be adjusted up and down during the experiment. Because the beam is relatively heavy, the operation is troublesome, the workload is heavy, and the safety is low;

3. It cannot meet the requirements of various structural tests;

4. When carrying out the test of a structural specimen with a large self-weight, it is troublesome to operate the specimen correctly, and it is prone to collision damage during the placement of the specimen;

5. In the installation and post-commissioning, it is necessary to use external lifting equipment, which increases the cost of installation and post-use.

Utility model content:

The purpose of this utility model is to provide a new type of structural static test loading test frame for the shortcomings of the existing structural static test, which can realize the self-adjustment of the height of the combined beam, and adapt to the test components of different heights by adjusting the height of the loading support , and can use its own equipment to lift and install heavier test components, so as to meet the requirements of most structural static tests.

In order to achieve the above object, the utility model adopts the following technical solutions:

A new type of structural static test loading test frame of the utility model is composed of a support column, a combined beam, a top beam, a hydraulic jack, a self-adjusting electric hoist for the beam, an electric hoist for hoisting test pieces, and a loading support, wherein the bottom of the support column It is fixed on the rigid ground by bolts, and the combined beam is connected to the supporting column through the bolt holes, and the height can be adjusted; there is a track at the bottom of the combined beam, and the hydraulic jack and the electric hoist for hoisting the specimen are connected to the combined beam through the track, and the position can be adjusted freely; There are two top beams located above the supporting columns. The two top beams are respectively connected to the oblong bolt holes on the steel plates at the top of the supporting columns on both sides through bolts, and the crossbeam self-adjusting electric hoist is connected to the top beams through bolts. The loading support is located directly below the combined beam and placed on a rigid ground. The top beam is I-shaped steel, the cross-section of the support column is groove-shaped, and there are screw holes evenly distributed on the support column to facilitate the up and down adjustment of the combined beam.

A new structure static test loading test frame of the utility model is further characterized in that: the loading support is composed of a base, a backing plate and a loading platform. Wherein the base is composed of a bottom plate, an angle steel and a positioning steel bar, positioning holes are arranged at the bottom of the backing plate and the loading platform, and the base, the backing plate and the loading platform are assembled through the positioning steel bar.

Compared with the existing structural static test loading test frame, the utility model has the beneficial effects as follows:

(1) Without external lifting equipment, the self-adjusting electric hoist can be used to adjust the height of the self-combined beam, which greatly reduces the difficult operation of the test and the high cost of the test;

(2) The adjustable support can adapt to the height of different specimens;

(3) The electric hoist for hoisting the test pieces can facilitate the hoisting and accurate positioning of some self-heavy structural test pieces, and reduces the damage to the test pieces during the placement of the test pieces.

(4) Most of the structural static tests can be satisfied by adjusting the size.

(5) The utility model is simple to operate, greatly reduces physical labor in the test process, and increases the safety in the test process of self-weight samples.

Description of drawings:

Fig. 1 is the front view of the structural static test loading frame of the present utility model;

Fig. 2 is the side view of the structural static test loading frame of the present utility model;

Fig. 3 is the side view of the composite beam of the present utility model;

Fig. 4 is a top view of the base of the loading support of the present invention;

Fig. 5 is a front view of the base of the loading support of the present invention;

Fig. 6 is the backing plate of the loading bearing of the present utility model;

Fig. 7 is the loading platform of the loading bearing of the present utility model;

Fig. 8 is a detailed view of the bottom plate of the loading platform of the loading support of the present invention;

Fig. 9 is a schematic diagram of the overall splicing of the loading support of the present invention.

Explanation of the serial numbers of the attached drawings:

1-top beam, 2-support column, 3-combined beam, 4-electric hoist for hoisting specimen, 5-hydraulic jack, 6-load transfer beam, 7-loading support, 8-hinge support or fixed support, 9-track slot, 10-track, 11-pressure sensor, 12-top beam connecting bolt, 13-support column fixing bolt, 14-screw hole, 15-beam self-adjusting electric hoist, 16-beam self-adjusting electric hoist connecting bolt , 17-combined beam connecting bolts, 18-track slot connecting bolts, 19-hoisting specimen electric hoist connecting bolts, 20-hydraulic jack hinge connection, 21-supporting column stiffeners, 22-load transfer beam stiffeners.

Among them, the 3-composite beam includes: 301-secondary beam, 302-main beam, 303-connecting screw, 304-connecting bottom plate, 305-local stiffener, 306-secondary beam stiffener, 307-main beam transverse stiffener, 308- Longitudinal stiffeners of the main beam, 309-short limb stiffeners of the main beam.

7-Loading support includes: 701-base bottom plate, 702-angle steel, 703-positioning steel bar, 704-backing plate, 705-positioning hole, 706-top plate of loading platform, 707-supporting angle steel of loading platform, 708-bottom plate of loading platform, 709-Loading Platform Lateral Support, 710-Loading Platform Lateral Support, 711-Loading Platform Roof Screw Hole

detailed description:

The specific embodiment of the utility model is introduced below in conjunction with accompanying drawing and specific embodiment:

1. Taking the concrete beam specimen as an example, determine the position of the bolt hole 14 at the joint between the support column 2 and the composite beam 3 according to the height of the beam specimen;

2. Lift the combined beam 3 to the height of the specified bolt hole 14 through the self-adjusting electric hoist 15 of the beam, and fix the combined beam 3 on the support column 2 with the bolt 17, as shown in Figure 2;

3. Determine the height of the loading support 7 and the number of backing plates according to the height of the concrete beam specimen and the position of the combined beam 3, and assemble the loading support 7 with reference to Figure 9;

4. Determine the type and distance of hinge support or fixed support 8 according to the experimental plan;

5. Determine a reasonable lifting point according to the length of the concrete beam test piece (generally one-third of the length of the beam test piece), adjust the electric hoist 4 for hoisting the test piece through the track 10, and lift and place the test piece;

6. Accurately adjust the position of the hydraulic jack 5 according to the loading position of the specimen to ensure the accuracy of the loading point, as shown in Figure 1;

7. Finally, carry out the concrete beam bending test loading.

The content not described in detail in this specification belongs to the prior art known to those skilled in the art.

Claims (2)

1. A new type of structural static test loading test frame is composed of a support column, a combined beam, a top beam, a hydraulic jack, a self-adjusting electric hoist for the beam, an electric hoist for hoisting test pieces, and a loading support, and is characterized in that: the support The bottom of the column is fixed to the rigid ground by bolts, and the combined beam is connected to the support column through the bolt holes, and the height can be adjusted; the bottom of the combined beam is equipped with a track, and the hydraulic jack and the electric hoist for hoisting the specimen are connected to the combined beam through the track, and can be adjusted freely Position; the top beam is located above the support column, there are two in total, the two top beams are respectively connected to the top of the support columns on both sides by bolts, and the self-adjusting electric hoist of the beam is connected to the top beam by bolts; the loading support is located directly below the composite beam , placed on a rigid ground. 2. A kind of novel structure static test loading test frame according to claim 1, is characterized in that: described loading bearing is made up of base, backing plate and loading platform, and wherein base is made up of base plate, angle steel and positioning steel bar, Positioning holes are arranged at the bottom of the backing plate and the loading platform, and the base, the backing plate and the loading platform are combined by positioning steel bars.