Light steel keel static load test device for building

Abstract

The utility model relates to the technical field of lightgage steel joist static load test equipment, and discloses a lightgage steel joist static load test device for buildings, which comprises an equipment box body and an aluminum alloy frame body arranged at the top of the equipment box body, a loading oil cylinder is arranged in the equipment box body, a loading assembly is fixedly arranged on the loading oil cylinder, and the loading oil cylinder is connected with the aluminum alloy frame body. The loading assembly is vertically arranged along the axial direction of the loading oil cylinder; the top of the aluminum alloy frame body is provided with a group of supporting cross beams used for positioning the light steel keel assembly, and the supporting cross beams are provided with quick mounting holes used for quick mounting of suspenders of the light steel keel assembly; a plurality of laser range finders are arranged on the upper surface of the equipment box body and are used for recording deformation parameters before and after the light steel keel assembly is loaded. The loading device is compact in overall structure, the loading device is installed in a closed mode and is neater, meanwhile, the quick installation hole is formed, and the installation convenience of the light steel keel assembly on the loading device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of light steel keel static load test equipment, in particular to a light steel keel static load test device for construction. Background Art

[0002] With the increasing demand for lightweight and efficient structures in the construction engineering field, light steel structures have been widely used as a superior building structural material; light steel keels are key components of light steel structures, and accurate evaluation of their static load performance has become an important issue in architectural design and engineering practice.

[0003] In construction projects, the safety and reliability of structures are of vital importance. As a key component for support and load transfer, the accurate evaluation of the static load performance of light steel keels is crucial to ensure the safety of the entire building structure.

[0004] At present, most of the static load test devices for light steel keels load the light steel keels by setting a ballast device on the top or a lifting device on one side. Therefore, the overall structure of the existing test devices is not compact, the structure is relatively complex, and it occupies a large space.

[0005] Therefore, the development of a portable and compact device for evaluating the static load performance of light steel keels has become an urgently needed technical support for the industry. Utility Model Content

[0006] In order to solve the problems existing in the prior art, the utility model provides a static load test device for a light steel keel for construction, which has a compact overall structure and can perform tests quickly and efficiently.

[0007] The technical solution of the utility model is as follows:

[0008] A static load test device for light steel keels for buildings, comprising an equipment box and an aluminum alloy frame arranged on the top of the equipment box, wherein a loading cylinder is arranged inside the equipment box, a loading assembly is fixedly arranged on the loading cylinder, and the loading assembly is vertically arranged along the axial direction of the loading cylinder; a group of supporting beams for positioning the light steel keel assembly are arranged on the top of the aluminum alloy frame, and quick-release holes are arranged on the supporting beams for quick installation of the hanger rods of the light steel keel assembly; a plurality of laser rangefinders are arranged on the upper surface of the equipment box for recording the deformation parameters of the light steel keel assembly before and after loading.

[0009] Furthermore, the loading assembly includes an upper pull rod, a lower pull rod, a dynamometer and a pressure plate; one end of the lower pull rod is fixedly connected to the loading cylinder, and the other end is connected to the dynamometer; one end of the upper pull rod is connected to the dynamometer, and the other end is connected to the pressure plate.

[0010] Furthermore, the lower pull rod is a plain rod, and the upper pull rod is a threaded rod. After the upper pull rod is passed through the pressure plate, the pressure plate is locked and installed on the upper pull rod through upper and lower nuts.

[0011] Furthermore, a through hole is provided at the center of the pressing plate, and dovetail grooves are provided at both sides of the bottom of the pressing plate, and a pressing plate extension plate is arranged in the dovetail groove.

[0012] Furthermore, the quick-release hole includes a circular hole and a strip hole connected to the circular hole, the diameter of the circular hole is larger than the diameter of the nut on the suspension rod, and the width of the strip hole is larger than the diameter of the suspension rod and smaller than the diameter of the nut on the suspension rod.

[0013] Furthermore, two supporting beams are provided, and the two supporting beams are respectively arranged on the top of the aluminum alloy frame through angle brackets, and the relative distance between the supporting beams can be adjusted through the angle brackets.

[0014] The beneficial effects of the utility model are as follows:

[0015] 1) The utility model sets the loading device below the light steel keel assembly and separates the loading device from the aluminum alloy frame by providing an equipment box, so that the overall structure is more compact and interference of the loading device is avoided when the light steel keel assembly is installed.

[0016] 2) The loading device is pulled down, which is different from the existing downward loading method, so that the loading device does not occupy the upper space and reduces the height of the equipment to a certain extent.

[0017] 3) Two supporting beams are set on the aluminum alloy frame, and the distance between the supporting beams can be adjusted, which can be suitable for the test of light steel keel components of different sizes. Quick-install holes are set on the supporting beams to avoid the time of adjusting and installing the nuts on the hanger and improve the test efficiency.

[0018] 4) The overall structure of the utility model is compact, and the loading device is installed in a closed manner, which is more tidy. At the same time, quick-install holes are provided to improve the convenience of installing the light steel keel assembly on the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 It is a schematic diagram of the top view structure of the utility model;

[0021] Figure 3 It is a schematic diagram of the side structure of the pressing plate of the utility model;

[0022] Figure 4 It is a cross-sectional view of the pressing plate of the utility model;

[0023] In the figure: 1. Equipment box; 2. Aluminum alloy frame; 3. Light steel keel assembly; 5. Upper pull rod; 6. Pressure plate; 7. Hanging rod; 8. Tension gauge; 9. Hanging piece; 10. Lower pull rod; 11. Laser rangefinder; 12. Loading cylinder; 13. Support beam; 14. Strip hole; 15. Round hole; 16. Pressure plate extension plate; 17. Handle; 18. Dovetail groove; 19. Through hole. DETAILED DESCRIPTION

[0024] The utility model is further described below in conjunction with the accompanying drawings of the specification.

[0025] like Figure 1-4 As shown, a static load test device for a light steel keel for construction includes an equipment box 1 and an aluminum alloy frame 2. Four leveling feet are provided at the bottom of the equipment box 1 for leveling the upper plane of the equipment box 1. The aluminum alloy frame 2 is a six-sided frame structure, which is installed at the edges of the four sides of the upper plane of the equipment box 1 and locked by bolts.

[0026] The equipment box 1 is a six-sided box structure, and a loading cylinder 12 is provided inside the equipment box 1. A lower pull rod 10 is fixed on the top of the loading cylinder 12, wherein the lower pull rod 10 is penetrated through the upper plane of the equipment box 1; the top of the lower pull rod 10 is connected to the bottom of the dynamometer 8, and the top of the dynamometer 8 is connected to the bottom of the upper pull rod 5, and a pressure plate 6 is penetrated on the top of the upper pull rod 5, and the upper pull rod 5 passes through the pressure plate 6 and is fixedly connected to the pressure plate 6 by bolts.

[0027] A plurality of laser rangefinders 11 are arranged on the upper plane of the equipment box 1. In this embodiment, two laser rangefinders 11 are arranged. The laser rangefinders 11 are aimed at the detection points on the light steel keel 3 to record the parameter changes before and after loading.

[0028] Two supporting beams 4 are arranged on the top of the aluminum alloy frame 2 through angle codes, and the relative distance between the two supporting beams 4 can be adjusted through the angle codes to meet the test requirements of light steel keels of different sizes; quick-release holes are respectively arranged on both sides of the upper surface of the supporting beam 4, and the quick-release holes are composed of a circular hole 15 and a rectangular hole 14, wherein the rectangular hole 14 is connected with the circular hole 15. When installing the hanger 4, there is no need to remove the nut on the hanger in advance, and the hanger with the nut is directly inserted into the circular hole 15 until the nut on the hanger 4 passes through the circular hole 15, and the hanger 4 is moved horizontally, and the nut is limited to the upper part of the rectangular hole 14 to realize the installation of the hanger. After the light steel keel is installed on the hanger through the hanger, the nut on the hanger 4 is adjusted to keep the light steel keel in a horizontal position.

[0029] In this embodiment, since the distance between the two supporting beams 4 is adjustable, the corresponding pressure plate 6 is designed to be an adjustable structure. A through hole 19 is opened in the center of the pressure plate 6, and dovetail grooves 18 are opened on both sides of the bottom of the pressure plate 6. A pressure plate extension plate 16 is arranged in the dovetail groove 18. A handle is provided on the vertical plane at the end of the pressure plate extension plate 16 for pulling out the pressure plate extension plate 16. The adjustable structure of the pressure plate 6 can meet the test of light steel keels of different sizes.

[0030] When the utility model is working, the hanger and the hanger must be installed first, and then the hanger must be installed on the supporting beam, and then the assembled light steel keel must be placed on the hanger, and the nut on the hanger must be fine-tuned to keep the light steel keel level; then the laser rangefinder is placed below the measuring point of the light steel keel and aligned with the measuring point; the loading cylinder is started, driving the pressure plate to contact the light steel keel and pressurizing it to the set value, the loading value can be displayed in real time on the dynamometer, and after the loading is maintained for a certain period of time, the loading is stopped and the test is ended.

[0031] The above embodiments are only preferred embodiments of the present utility model and are not limitations on the technical solutions of the present utility model. Any technical solution that can be implemented on the basis of the above embodiments without creative work should be deemed to fall within the scope of protection of the patent of the present utility model.

Claims

1. A static load test device for light steel keels for construction, characterized in that: The invention comprises an equipment box (1) and an aluminum alloy frame (2) arranged on the top of the equipment box (1); a loading cylinder (12) is arranged inside the equipment box (1); a loading assembly is fixedly arranged on the loading cylinder (12), and the loading assembly is arranged vertically along the axis of the loading cylinder; a group of supporting beams (13) for positioning a light steel keel assembly is arranged on the top of the aluminum alloy frame (2); quick-install holes are arranged on the supporting beams (13) for quick installation of a suspension rod (7) of the light steel keel assembly; and a plurality of laser rangefinders (11) are arranged on the upper surface of the equipment box (1) for recording deformation parameters of the light steel keel assembly before and after loading.

2. A static load test device for light steel keels for construction according to claim 1, characterized in that: The loading assembly comprises an upper pull rod (5), a lower pull rod (10), a dynamometer (8) and a pressure plate (6); one end of the lower pull rod (10) is fixedly connected to the loading cylinder (12), and the other end is connected to the dynamometer (8); one end of the upper pull rod (5) is connected to the dynamometer (8), and the other end is connected to the pressure plate (6).

3. A static load test device for light steel keels for construction according to claim 2, characterized in that: The lower pull rod (10) is a plain rod, and the upper pull rod (5) is a threaded rod. After the upper pull rod (5) is inserted into the pressure plate (6), the pressure plate (6) is locked and installed on the upper pull rod (5) by upper and lower nuts.

4. A static load test device for light steel keels for construction according to claim 2, characterized in that: A through hole (19) is provided at the center of the pressing plate (6), and dovetail grooves (18) are provided at two sides of the bottom of the pressing plate (6), wherein a pressing plate extension plate (16) is arranged in the dovetail grooves (18).

5. The static load test device for light steel keels for construction according to claim 1 is characterized in that: The quick-install hole comprises a circular hole (15) and a strip hole (14) connected to the circular hole (15); the diameter of the circular hole (15) is larger than the diameter of the nut on the suspension rod (7); the width of the strip hole (14) is larger than the diameter of the suspension rod (7) and smaller than the diameter of the nut on the suspension rod (7).

6. A static load test device for light steel keels for construction according to claim 1, characterized in that: Two supporting crossbeams (13) are provided, and the two supporting crossbeams (13) are respectively arranged on the top of the aluminum alloy frame (2) through angle brackets, and the relative distance between the supporting crossbeams (13) can be adjusted through the angle brackets.

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