Building guardrail horizontal load resistance on-site detection device

Abstract

The utility model provides an on-site detection device for horizontal load resistance of a guardrail for a building. The on-site detection device comprises an adjustable T-shaped support, a force application assembly, a fixing frame and a displacement meter, the adjustable T-shaped support comprises a vertical rod base, a fixed round pipe, an adjustable round pipe, a first adjusting screw and a connecting part, and the connecting part is arranged above the adjustable round pipe; the force application assembly comprises a cross rod base, a fixed cross rod, an adjustable cross rod, a third adjusting screw, a dynamometer and a force application jacking, the middle of the fixed cross rod is connected with the connecting part, the cross rod base is fixedly arranged at the rear end of the fixed cross rod, and the front end of the fixed cross rod is sleeved with the adjustable cross rod; one end of the dynamometer is arranged in front of the adjustable cross rod, and the other end is connected with the force application jacking; the fixing frame comprises supports, a tripod, a steel connecting rod and a magnet, the steel connecting rod is arranged on the two supports through the tripod, and the displacement meter is arranged on the steel connecting rod through the magnet. The device is simple in structure, high in accuracy, strong in applicability, detachable, convenient to carry, easy to maintain and long in service life.

Description

[Technical Field]

[0001] This utility model relates to the field of building railing testing equipment, specifically to a field testing device for the horizontal load resistance performance of building railings. [Background Technology]

[0002] Building railings are architectural components, commonly used in stairwells, balconies, and areas with open spaces. They play a vital role in protecting personal safety and property. Composed of railings and balustrades, they prevent direct passage of people or objects and serve as spatial dividers. The railings are typically made of metal, consisting of posts and handrails, providing structural support. The balustrades can be made of metal or glass, serving as barriers. The horizontal load resistance of building railings depends not only on the materials used but also on the on-site installation conditions, such as the concrete strength at the post fixing points and the installation method. Therefore, the horizontal load resistance performance of building railings is often assessed through on-site testing to determine their true quality. The horizontal load resistance performance of building railings is a crucial indicator of their quality.

[0003] The national standard "Load Code for Building Structures" GB50009-2012 has clear requirements regarding the horizontal loads on buildings. The industry standard "Technical Standard for Building Guardrails" JGJ / T 470-2019 stipulates that a test report on the horizontal load resistance performance of building guardrails should be submitted during the acceptance of building guardrail projects. The industry standard "Glass and Metal Guardrails for Buildings" JG / T342-2012 provides detailed regulations on on-site testing methods for the horizontal load resistance performance of building guardrails. Existing on-site testing devices for the horizontal load resistance performance of building guardrails generally use weights, cement, or other heavy objects piled at the bottom of the force-applying device or fixed to the building's concrete floor with expansion bolts to counteract the support reaction force generated by the force-applying device. These two methods are complex to operate, time-consuming and labor-intensive, and produce large errors in the test results. They may also damage the original intact building floor, causing cracks and leaks. For stairwell guardrails, the limited tread area makes it impossible to effectively pile heavy objects for testing.

[0004] Given the immaturity of existing field testing devices for the horizontal load resistance of building railings, and the lack of effective field testing for this performance, it is of great significance to design a simple, easy-to-use, and high-precision field testing device for the horizontal load resistance of building railings. [Utility Model Content]

[0005] The technical problem to be solved by this utility model is to provide a field testing device for the horizontal load resistance performance of building guardrails. It has a simple structure, is lightweight, highly accurate, widely applicable, easy to install and operate, and all its components are detachable, making it easy to carry and transport. It is also easy to maintain, has a long service life, and can reduce costs.

[0006] This utility model is implemented as follows:

[0007] A field testing device for the horizontal load resistance performance of building guardrails includes an adjustable T-shaped support, a force application component, a fixing frame, and a displacement gauge;

[0008] The adjustable T-shaped support includes a vertical rod base, a fixed round tube, an adjustable round tube, a first adjusting screw, and a connecting part. The fixed round tube is vertically mounted on the vertical rod base. The adjustable round tube is sleeved above the fixed round tube and can slide up and down along the fixed round tube. The first adjusting screw passes through the fixed round tube and is threadedly connected to the fixed round tube to fix and limit the adjustable round tube. The connecting part is located above the adjustable round tube.

[0009] The force-applying assembly includes a crossbar base, a fixed crossbar, an adjustable crossbar, a third adjusting screw, a force gauge, and a force-applying support. The middle part of the fixed crossbar is connected to the connecting part, and the crossbar base is fixedly disposed at the rear end of the fixed crossbar. The adjustable crossbar is sleeved on the front end of the fixed crossbar and can move back and forth along the fixed crossbar. The third adjusting screw passes through the fixed crossbar and is threadedly connected to the fixed crossbar to fix and limit the adjustable crossbar. One end of the force gauge is disposed at the front end of the adjustable crossbar, and the other end is connected to the force-applying support.

[0010] The fixing frame includes a bracket, a tripod, a steel connecting rod, and a magnetic attachment. There are at least two brackets and tripods. Each bracket has bolt holes. The tripod includes a first mounting plate and a second mounting plate arranged perpendicularly to each other. The first mounting plate is vertically arranged and has an elongated bolt groove, which is fixedly connected to the corresponding bracket by bolts. The two ends of the steel connecting rod are respectively mounted on the corresponding second mounting plates and fixedly connected by bolts. The displacement gauge is fixed to the steel connecting rod by the magnetic attachment.

[0011] The fixing bracket is located below the front end of the force-applying component.

[0012] Furthermore, the adjustable round tube includes a first adjustable round tube, a second adjustable round tube, and a second adjusting nut. The first adjustable round tube is sleeved above the fixed round tube and is fixed to the fixed round tube by the first adjusting screw. The second adjustable round tube is slidably sleeved on the first adjustable round tube and is fixed to the first adjustable round tube by the second adjusting nut.

[0013] Furthermore, the base of the vertical rod is provided with screw holes around its perimeter, which are used to reinforce it with corresponding bolts.

[0014] Furthermore, the middle part of the fixed crossbar is detachably connected to the connecting part.

[0015] Furthermore, the force gauge is a bow-shaped force gauge.

[0016] Furthermore, the first mounting plate and the second mounting plate are angle steel.

[0017] Furthermore, the second mounting plate has multiple bolt holes along its length; both ends of the steel connecting rod have multiple bolt holes along their length.

[0018] Furthermore, the displacement gauge is a dial indicator.

[0019] The advantages of this utility model are:

[0020] This utility model has a simple structure, is lightweight, highly accurate, stable, widely applicable, easy to install and operate. All its components are detachable, making it easy to carry and transport. It is also easy to maintain, has a long service life, and can reduce costs. [Attached Image Description]

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0022] Figure 1 This is a schematic diagram of an on-site testing device for the horizontal load resistance performance of building guardrails according to this utility model.

[0023] Figure 2 This is a schematic diagram of the adjustable T-shaped support and force application component structure of an on-site testing device for the horizontal load resistance performance of building guardrails according to this utility model.

[0024] Figure 3 This is a schematic diagram of the mounting frame and displacement gauge of a field testing device for the horizontal load resistance performance of building guardrails according to this utility model.

Detailed Implementation Methods

[0025] The following will be combined with the appendix Figure 1-3The technical solution of this utility model will be clearly and completely described in conjunction with specific embodiments. In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0026] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0027] Please see Figures 1 to 3 As shown, the present invention provides an on-site testing device for the horizontal load resistance performance of a building railing, comprising an adjustable T-shaped support 1, a force application component 2, a fixing frame 3, and a displacement meter 4.

[0028] The adjustable T-shaped support 1 includes a vertical rod base 11, a fixed circular tube 12, an adjustable circular tube 13, a first adjusting screw 14, and a connecting part 15. The fixed circular tube 12 is vertically mounted on the vertical rod base 11. The adjustable circular tube 13 is sleeved above the fixed circular tube 12 and can slide up and down along the fixed circular tube 12. The first adjusting screw 14 passes through the fixed circular tube 12 and is threadedly connected to the fixed circular tube 12 to fix and limit the adjustable circular tube 13. The connecting part 15 is located above the adjustable circular tube 13. The first adjusting screw 14 is located at the top of the fixed circular tube 12. By extending the adjustable circular tube 13 to the required height and tightening the adjusting screw, the adjustable circular tube 13 can be fixed. This setting allows for arbitrary height adjustment, unlike the previous fixing method using equidistant bolt holes, which could not precisely adjust the height of the test device. It effectively solves the problem of height difference caused by different ground flatness and different guardrail heights, and improves the accuracy of test results.

[0029] The force-applying component 2 includes a crossbar base 21, a fixed crossbar 22, an adjustable crossbar 23, a third adjusting screw 24, a force gauge 25, and a force-applying support 26. The middle part of the fixed crossbar 22 is connected to the connecting part 15. The crossbar base 21 is fixedly disposed at the rear end of the fixed crossbar 22. The adjustable crossbar 23 is sleeved on the front end of the fixed crossbar 22 and can move back and forth along the fixed crossbar 22. The third adjusting screw 24 passes through the fixed crossbar 22 and is threadedly connected to the fixed crossbar 22 to fix and limit the adjustable crossbar 23. One end of the force gauge 25 is disposed on the adjustable crossbar 23. The front end of the crossbar 22 is connected to the force-applying support 26; the adjustment principle of the fixed crossbar 22 and the adjustable crossbar 23 is the same as that of the T-shaped support 1; the crossbar base 21 can be abutted against the building wall or railing; the ingenious feature of the force-applying component 1 is that it changes the overall force model of the test device, changing the original complex test device that needs to resist the overturning moment brought by the test load to the existing test device that directly resists the axial force of the test load. This not only greatly simplifies the device, making it easier to install and transport, and improving work efficiency, but also avoids the risk of the original test device possibly overturning, and further improves the reliability of the test results.

[0030] The fixing frame 3 includes a bracket 31, a tripod 32, a steel connecting rod 33, and a magnetic 34. There are at least two brackets 31 and tripods 32. Each bracket 31 has bolt holes 35. Each tripod 32 includes a first mounting plate 321 and a second mounting plate 322 arranged perpendicularly to each other. The first mounting plate 321 is vertically oriented and has elongated bolt grooves 323, which are fixedly connected to the corresponding bracket 31 by bolts 36. The two ends of the steel connecting rod 33 are respectively mounted on the corresponding second mounting plate 32. 2. The dial indicator is fixedly connected to the steel connecting rod 33 by bolts 36. The displacement gauge 4 is fixed to the steel connecting rod 33 by the magnetic attraction 34. The required height of the dial indicator can be coarsely adjusted by selecting bolt holes 35 of different heights on the bracket 31, and the required height can be finely adjusted by adjusting the long strip bolt groove reserved in the movable tripod 32 to achieve precise positioning of the dial indicator. The length of the steel connecting rod 33 between the brackets 31 can also be adjusted as needed. In addition, five strong magnetic attraction 34 can be configured to fix five displacement gauges 4 for reading the deformation of the railing.

[0031] The fixing frame 3 is located below the front end of the force-applying component 2.

[0032] In a preferred embodiment, the adjustable circular tube 13 includes a first adjustable circular tube 131, a second adjustable circular tube 132, and a second adjusting nut 133. The first adjustable circular tube 131 is sleeved above the fixed circular tube 12 and is fixed to the fixed circular tube 12 by the first adjusting screw 14. The second adjustable circular tube 132 is slidably sleeved on the first adjustable circular tube 131 and is fixed to the first adjustable circular tube 131 by the second adjusting nut 133.

[0033] In a preferred embodiment, the vertical rod base 11 is provided with screw holes 111 around its perimeter for reinforcement with corresponding bolts. Alternatively, the vertical rod base can be fixed to the ground using bolts if necessary.

[0034] In a preferred embodiment, the middle part of the fixed crossbar 22 is detachably connected to the connecting part 15.

[0035] In a preferred embodiment, the force gauge 25 is a bow-shaped force gauge. The bow-shaped force gauge is mounted at the end of the adjustable crossbar 23 of the force application component 3. It has a simple structure, is easy to install and maintain, is small in size, lightweight, portable, low in cost, and economical. It is also durable and suitable for various environments and occasions. The bow-shaped force gauge is connected to a pressure gauge, and by changing the screw stroke, different test loads can be applied. The test load can be read in real time, improving the accuracy of the test.

[0036] In a preferred embodiment, the first mounting plate 321 and the second mounting plate 322 are angle steel.

[0037] In a preferred embodiment, the second mounting plate 322 has a plurality of bolt holes 35 along its length; the two ends of the steel connecting rod 33 have a plurality of bolt holes 35 along their length.

[0038] In a preferred embodiment, the displacement gauge 4 is a dial gauge.

[0039] In another embodiment of this utility model, the installation method of the on-site testing device for the horizontal load resistance performance of building guardrails is as follows:

[0040] Place the adjustable T-shaped support 1 described in section 2 in the middle of the two guardrails 100, adjust the adjustable round tube 13 to the required height (the adjustable round tube is telescopic), tighten the adjusting screw, and fix the height.

[0041] The fixed crossbar 22 of the force application component 2 is fixedly connected to the connecting part 15 at the top of the adjustable T-shaped support 1, and the crossbar base 21 can be abutted against the building wall or the guardrail 100.

[0042] An arc-shaped force gauge is installed at the front end of the adjustable crossbar 23. The arc-shaped force gauge is connected to the front end of the adjustable crossbar 23 by a screw. By adjusting the stroke of the screw, the test load can be applied. The arc-shaped force gauge is connected to a pressure gauge to read the test load. Then, a force-applying support is installed at the front end of the arc-shaped force gauge and the force-applying support is placed against the guardrail to be tested.

[0043] Install and set up the fixed frame 3. The required height of the dial indicator can be roughly adjusted by selecting the bolt holes 35 of different heights on the bracket 31. The required height can be finely adjusted by adjusting the long strip bolt groove reserved in the movable tripod 32. Set up and fix the steel connecting rod 33. Place the strong magnetic suction 34 and displacement gauge 4 in the required position. The test device is now installed.

[0044] After the inspection is completed, loosen all fixing bolts and screws, disassemble and clean all parts, and perform cleaning and maintenance on the device.

[0045] In summary, this utility model has a simple structure, is lightweight, highly accurate, stable, widely applicable, easy to install and operate, and all its components are detachable, making it easy to carry and transport. It is also easy to maintain, has a long service life, and can reduce costs.

[0046] While specific embodiments of the present invention have been described above, those skilled in the art should understand that the specific embodiments described are merely illustrative and not intended to limit the scope of the present invention. Equivalent modifications and variations made by those skilled in the art in accordance with the spirit of the present invention should be covered within the scope of protection of the claims of the present invention.

Claims

1. A field testing device for the horizontal load resistance performance of building guardrails, characterized in that: Includes adjustable T-shaped supports, force application components, fixing frames, and displacement gauges; The adjustable T-shaped support includes a vertical rod base, a fixed round tube, an adjustable round tube, a first adjusting screw, and a connecting part. The fixed round tube is vertically mounted on the vertical rod base. The adjustable round tube is sleeved above the fixed round tube and can slide up and down along the fixed round tube. The first adjusting screw passes through the fixed round tube and is threadedly connected to the fixed round tube to fix and limit the adjustable round tube. The connecting part is located above the adjustable round tube. The force-applying assembly includes a crossbar base, a fixed crossbar, an adjustable crossbar, a third adjusting screw, a force gauge, and a force-applying support. The middle part of the fixed crossbar is connected to the connecting part, and the crossbar base is fixedly disposed at the rear end of the fixed crossbar. The adjustable crossbar is sleeved on the front end of the fixed crossbar and can move back and forth along the fixed crossbar. The third adjusting screw passes through the fixed crossbar and is threadedly connected to the fixed crossbar to fix and limit the adjustable crossbar. One end of the force gauge is disposed at the front end of the adjustable crossbar, and the other end is connected to the force-applying support. The fixing frame includes a bracket, a tripod, a steel connecting rod, and a magnetic attachment. There are at least two brackets and tripods. Each bracket has bolt holes. The tripod includes a first mounting plate and a second mounting plate arranged perpendicularly to each other. The first mounting plate is vertically arranged and has an elongated bolt groove, which is fixedly connected to the corresponding bracket by bolts. The two ends of the steel connecting rod are respectively mounted on the corresponding second mounting plates and fixedly connected by bolts. The displacement gauge is fixed to the steel connecting rod by the magnetic attachment. The fixing bracket is located below the front end of the force-applying component.

2. The on-site testing device for the horizontal load resistance performance of building guardrails as described in claim 1, characterized in that: The adjustable tube includes a first adjustable tube, a second adjustable tube, and a second adjusting nut. The first adjustable tube is sleeved above the fixed tube and is fixed to the fixed tube by the first adjusting screw. The second adjustable tube is slidably sleeved on the first adjustable tube and is fixed to the first adjustable tube by the second adjusting nut.

3. The on-site testing device for the horizontal load resistance performance of building guardrails as described in claim 1, characterized in that: The base of the vertical rod is provided with screw holes around its perimeter, which are used to reinforce it with corresponding bolts.

4. The on-site testing device for the horizontal load resistance performance of building guardrails as described in claim 1, characterized in that: The middle part of the fixed crossbar is detachably connected to the connecting part.

5. The on-site testing device for the horizontal load resistance performance of building guardrails as described in claim 1, characterized in that: The force gauge is a bow-shaped force gauge.

6. The on-site testing device for the horizontal load resistance performance of building guardrails as described in claim 1, characterized in that: The first mounting plate and the second mounting plate are angle steel.

7. The on-site testing device for the horizontal load resistance performance of building guardrails as described in claim 1, characterized in that: The second mounting plate has multiple bolt holes along its length; both ends of the steel connecting rod have multiple bolt holes along their length.

8. The on-site testing device for the horizontal load resistance performance of building guardrails as described in claim 1, characterized in that: The displacement gauge is a dial gauge.

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