Loading device for measuring structure load slip curve

Abstract

The utility model relates to a loading device for measuring a structure load slip curve. The loading device comprises an equipment base, the jack base is arranged on one side of the equipment base; one end of the jack abuts against the jack base; the positioning block is movably arranged on the equipment base, the top of the positioning block abuts against the jack, and the positioning block is used for adjusting the position of the jack; the terminal limiting block is arranged on the other side of the equipment base; the displacement scales are arranged on the two sides of the top of the terminal limiting block and used for measuring and recording displacement changes of the tested structural member in the loading process.

Description

TECHNICAL FIELD

[0001] The utility model belongs to civil engineering technical field, concretely relates to a loading device for measuring structural load slip curve. BACKGROUND

[0002] In the field of structural engineering, especially when testing the mechanical properties of building materials, components or structures, measuring the slip curve of the structure under load is a crucial task. Slip curve can intuitively reflect the deformation behavior of the structure during loading process, which is of great significance for evaluating the load-carrying capacity, stiffness characteristics and failure mode of the structure.

[0003] At present, the mechanical property loading device for measuring special components in the experimental process is not perfect, many existing loading devices can only meet the standard test pieces of inherent size, cannot adapt to other special structures, and the operation is complex and time-consuming, and the load slip data reading is also cumbersome.

[0004] Based on the above problems, the utility model provides a loading device for measuring structural load slip curve. UTILITY MODEL CONTENT

[0005] The utility model aims at providing a loading device for measuring structural load slip curve, in order to realize the above-mentioned purpose, the utility model adopts the technical scheme that:

[0006] A loading device for measuring structural load slip curve, comprising:

[0007] Device base;

[0008] Jack base, arranged on one side of the device base;

[0009] Jack, one end abutting with the jack base;

[0010] Positioning block, movably arranged on the device base, the top of the positioning block abutting with the jack, the positioning block is used for adjusting the position of the jack;

[0011] Terminal limiting block, arranged on the other side of the device base;

[0012] Displacement scale, arranged on both sides of the top of the terminal limiting block.

[0013] Further, it further includes a concrete block, the concrete block is arranged on the device base, and one end of the concrete block abuts with the terminal limiting block, and the concrete block is used for supporting the test structure.

[0014] Further, the positioning block is provided with at least two, and the top of each positioning block is provided with an arc-shaped groove matched with the jack.

[0015] Further, the jack is provided with a jack pad and a steel pad plate between the jack and the test structure.

[0016] Further, a load sensor is arranged between the jack pad and the steel pad plate.

[0017] Further, the terminal limiting block is connected with the equipment base through a limiting block connecting plate and a first bolt.

[0018] Further, the displacement scale is connected with the terminal limiting block through a second bolt.

[0019] Further, the positioning block is connected with the equipment base through a third bolt.

[0020] The utility model discloses a loading device for measuring structural load slip curve, which has the following advantages:

[0021] Compared with the prior art, the loading device for measuring structural load slip curve has the adjustable positioning block design, and the positioning block can flexibly adapt to special test structure pieces of different sizes and shapes, so that the jack can be accurately centered on the center of the test structure piece, thereby solving the size limitation problem of the traditional loading device and improving the versatility and flexibility of the experimental equipment. BRIEF DESCRIPTION OF DRAWINGS

[0022] Fig. 1 It is the overall structure schematic view of the loading device for measuring structural load slip curve of the utility model.

[0023] Fig. 2 It is the overall front view of the loading device for measuring structural load slip curve of the utility model.

[0024] Fig. 3 It is the overall plan view of the loading device for measuring structural load slip curve of the utility model.

[0025] The reference signs are as follows: 1-equipment base, 2-test structure piece, 2-concrete block, 3-jack base, 4-jack, 5-positioning block, 6-terminal limiting block, 7-displacement scale, 8-jack pad, 9-steel pad plate, 10-load sensor, 11-limiting block connecting plate, 12-connecting bolt, 13-test structure piece. DETAILED DESCRIPTION

[0026] The preferred embodiments of the utility model will be described in detail below with reference to the drawings, so that the purpose, characteristics and advantages of the utility model can be more clearly understood. It should be understood that the embodiments shown in the drawings are not a limitation on the scope of the utility model, but only to illustrate the essential spirit of the technical scheme of the utility model.

[0027] Many existing loading devices can only meet the standard test specimens of inherent size, cannot adapt to other special structures, and are complex to operate and time-consuming, and the load slip data reading is also more cumbersome. For small-scale tests, the influence of the non-adaptive loading device is huge, and even the accuracy of the test data can be affected.

[0028] As shown in Figs. 1-3 The utility model provides a kind of loading device for measuring structural load slip curve, comprising: equipment base 1, jack base 3, jack 4, positioning block 5, terminal limiting block 6 and displacement scale 7;Jack base 3 is arranged at one side of equipment base 1;Jack 4 one end and jack base 3 abut, for applying load to test structure piece 13;Positioning block 5 is movably arranged on equipment base 1, and it is located between test structure piece 13 and jack base 3, the top of positioning block 5 and jack 4 abut, and positioning block 5 is used to adjust the position of jack 3, and the center position of test structure piece 13 is on the same central axis;Terminal limiting block 6 is arranged at the other side of equipment base 1;Displacement scale 7 is arranged on the top of both sides of terminal limiting block 6, for measuring and recording the displacement change of test structure piece 13 in loading process.

[0029] In this embodiment, start jack 4, and apply load to test structure piece 2 by gradually increasing pressure. With the increase of load, test structure piece 2 will produce corresponding displacement. In the loading process, positioning block 5 remains stationary, to ensure that jack 4 always applies load in the correct direction, to avoid deviation. The combination of terminal limiting block 6 and displacement scale 7 realizes accurate measurement and recording of the displacement change of test structure piece in the loading process. According to the recorded data, structural load slip curve is drawn, and the deformation of test structure piece under different loads can be intuitively understood.

[0030] Specifically, it also includes concrete block 2, and the concrete block 2 is arranged on the equipment base 1, and one end of the concrete block 2 abuts against the terminal limiting block 6, and the concrete block 2 is used to support the test structure piece 13.

[0031] As a preferred, test structure piece 13 can be bonded on concrete block 201.

[0032] As a preferred, test structure piece 13 can be roughened and connected on concrete block 201.

[0033] Specifically, the positioning block 5 is provided with at least two, and the top of each positioning block 5 is provided with an arc-shaped groove matched with the jack 4.

[0034] Specifically, the positioning block 5 is connected with the equipment base 1 through a third bolt, and the positioning block 5 has an adjustable size or structure to adapt to jacks 3 and test structural members of different sizes, so that the center positions of the jacks and the test structural members are aligned during the test.

[0035] Further, the centering of the loading jack 4 on the center position of the tested structural member is adjusted by replacing the centering positioning block 5 of different sizes.

[0036] Specifically, the jack 4 and the test structural member 13 are provided with a jack pad 8 and a steel pad 9.

[0037] Specifically, the jack pad 8 and the steel pad 9 are provided with a load sensor 10. The combination of the jack pad, the load sensor and the steel pad effectively disperses and uniformly transmits the load of the jack to the tested structural member, avoids local stress concentration, and improves the accuracy and safety of the test.

[0038] Further, before the jack is loaded, the positions of the load sensor, the jack pad and the steel pad are adjusted through low-load preloading, so that the center positions of the load sensor, the jack pad and the steel pad are on the same center axis, thereby improving the measurement accuracy.

[0039] Specifically, the terminal limiting block 6 is connected with the equipment base 1 through a limiting block connecting plate 11 and a first bolt 12.

[0040] Specifically, the displacement scale 7 is connected with the terminal limiting block 6 through a second bolt 12.

[0041] In the embodiment, the load sensor and the displacement scale are arranged, so that the required data can be directly read, the test efficiency is improved, the error caused by manual measurement is reduced, the operation is simple, the loading device is convenient to move and unload, has high flexibility, high practicability and short recycling period.

[0042] The working principle of the loading device for measuring structural load slip curve is as follows:

[0043] First, the jack is placed on the positioning block, and the load sensor is placed. After adjusting the direction and height, the concrete block and the test structure are placed. According to the different sizes of the jack and the test structure, the size or structure of the positioning block is adjusted to ensure that the center positions of the jack and the test structure are aligned during the test. Then, the jack is loaded by the oil pump in stages. During the loading process, the load value is read by the load sensor, and the displacement value is read by the displacement scale. The structure is destroyed until the structure is destroyed. Then, according to the recorded data, the structure load-slippage curve is drawn, and the deformation of the test structure under different loads can be intuitively understood.

Claims

1. A loading device for measuring a structural load deflection curve, characterized by, The utility model relates to a kind of test device for testing the bearing capacity of test structure, including: Device base (1); Jack base (3) is arranged in one side of the device base (1); Jack (4) is abutted with one end of the jack base (3); Positioning block (5) is movably arranged on the device base (1), the top of the positioning block (5) is abutted with the jack (4), and the positioning block (5) is used to adjust the position of jack (4); Terminal limiting block (6) is arranged on the other side of the device base (1); Displacement scale (7) is arranged on the top of the terminal limiting block (6) both sides.

2. The loading device for measuring structural load-slip curve according to claim 1, characterized in that: It further includes concrete block (2), the concrete block (2) is arranged on the device base (1), and one end of concrete block (2) is abutted with the terminal limiting block (6), and concrete block (2) is used to support test structure (13).

3. The loading device for measuring structural load-slip curve according to claim 1 or 2, characterized in that: The positioning block (5) is provided with at least two, and the top of each positioning block (5) is provided with arc-shaped groove, and the arc-shaped groove is matched with the jack (4).

4. The loading device for measuring structural load-slip curve according to claim 3, characterized in that: Jack pad (8) and steel pad (9) are arranged between the jack (4) and test structure (13).

5. A loading device for measuring structural load deflection curves according to claim 4, wherein: Load sensor (10) is arranged between the jack pad (8) and steel pad (9).

6. A loading device for measuring structural load deflection curves according to claim 5, wherein: The terminal limiting block (6) is connected with the device base (1) by limiting block connecting plate (11) and first bolt (12).

7. The loading device for measuring structural load deflection curves of claim 5, wherein: The displacement scale (7) is connected with the terminal limiting block (6) by second bolt.

8. A loading device for measuring structural load deflection curves according to claim 7, wherein: The positioning block (5) is connected with the device base (1) by third bolt.

Images