Load force transmission testing equipment for superposed beam

Abstract

The utility model belongs to the technical field of constructional engineering testing, and particularly relates to load force transmission testing equipment for a superposed beam, which comprises a foundation, a plurality of bolt groups I are embedded in the foundation, moving grooves are formed in the foundation on the left and right sides of the bolt groups I, and a power frame is mounted on the moving grooves in a rolling manner. The bottom end of a fixing frame in the power frame is connected with second bolt sets in a matched mode, the second bolt sets are embedded in the portions, on the two sides of the moving groove, of the foundation, two sets of supporting pieces are oppositely installed on the first bolt sets on the front side and the rear side of the power frame, and measuring pieces are further installed on the first bolt sets. Due to the fact that the positions of the supporting piece, the measuring piece and the power frame relative to the superposed beam building piece are all stably and accurately fixed, it can be effectively guaranteed that a measuring point and a vertical load point are located on the symmetrical face of the superposed beam building piece, and then the accuracy of vertical load data analysis of the superposed beam building piece is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of building engineering test technology, and specifically relates to a load transmission test equipment for a composite beam. BACKGROUND

[0002] The composite beam can be divided into two types, i.e., a one-stage stress composite beam and a two-stage stress composite beam, according to stress performance. The former refers to that reliable support is arranged under the prefabricated beam during the construction stage, so that all the loads acting in the construction stage are transmitted to the support. The latter refers to that no support is arranged under the simply supported prefabricated beam during the construction stage, and all the loads in the construction stage are completely borne by the prefabricated beam.

[0003] As a common structure form in modern engineering, the load-carrying capacity and load transmission performance of the composite beam directly affect the stability and safety of the overall structure. The traditional test method is to transport the composite beam component to a cushioning wood, apply load to the composite beam component through a hydraulic jack, and then install a strain gauge and a dial gauge to monitor the deformation of the composite beam component. This method often has problems such as insufficient test precision, complex operation, and cumbersome data processing, and cannot meet the high requirements of modern engineering on test precision and efficiency. SUMMARY

[0004] In view of the above problems, the utility model aims to provide a load transmission test equipment for a composite beam, which solves the problems of insufficient test precision, complex operation, and cumbersome data processing of the existing composite beam test method, and cannot meet the high requirements of modern engineering on test precision and efficiency.

[0005] To achieve the above purpose, the utility model adopts the technical scheme of a load transmission test equipment for a composite beam, which comprises a foundation, a plurality of bolt groups one are embedded in the foundation, moving grooves are formed in the foundation on the left and right sides of the bolt groups one, a power frame is installed on the moving grooves in a rolling manner, the bottom end of a fixing frame in the power frame is adaptively connected to a bolt group two, the bolt group two is embedded in the foundation on the left and right sides of the moving grooves, two support pieces are installed on the bolt groups one on the front and rear sides of the power frame in a relative manner, and a measuring piece is also installed on the bolt groups one.

[0006] The utility model has the beneficial effects that since the positions of the support piece, the measuring piece, and the power frame relative to the composite beam component are stably and accurately fixed, the measuring point and the vertical load point can be effectively ensured on the symmetry plane of the composite beam component, and the accuracy of the vertical load data analysis of the composite beam component is ensured.

[0007] In order to move the power frame before and after hoisting and installing the composite beam component

[0008] As a further improvement of the above technical solution: the bottom side of the fixed frame is provided with a lifting wheel, the lifting wheel comprises a connecting rod, one end of the connecting rod is rotatably connected to the fixed frame through a pin shaft, the other end of the connecting rod is rotatably connected to an oil cylinder through a pin shaft, and the bottom end of the oil cylinder is rotatably installed with a supporting wheel.

[0009] The beneficial effect of the improvement is that the supporting wheel moves to the lower side of the fixed frame under the support of the connecting rod and the oil cylinder and rolls in contact with the foundation, thereby enabling the power frame to move smoothly on the foundation to facilitate the hoisting of the composite beam component.

[0010] In order to enable the power frame to move stably;

[0011] As a further improvement of the above technical solution: the supporting wheel is rotatably installed on the inner side of the moving groove.

[0012] The beneficial effect of the improvement is that the moving groove functions as a limiting guide to enable the power frame to move stably along the extension direction of the moving groove.

[0013] In order to enable the power frame to be stably connected to the foundation to apply effective vertical load to the composite beam component;

[0014] As a further improvement of the above technical solution: the bottom end of the fixed frame is provided with a bottom plate three, a groove hole adapted to the plug-in bolt set two is formed on the bottom plate three, the top of the fixed frame is installed with a cylinder body of a hydraulic cylinder, the bottom end of a piston rod of the hydraulic cylinder is installed with a loading bracket, and the fixed frame is installed with a controller.

[0015] The beneficial effect of the improvement is that the supporting wheel moves above the bottom plate three when the oil cylinder is retracted, thereby enabling the bottom plate three to be in flat contact with the foundation and stably connected to the foundation through the bolt set two and the nut, so that the hydraulic cylinder can drive the loading bracket to apply effective vertical load to the composite beam component.

[0016] In order to effectively adapt to test different length specifications of the composite beam component;

[0017] As a further improvement of the above technical solution: a plurality of groups of the bolt set one are equidistantly spaced and buried on the foundation along the extension direction of the moving groove.

[0018] The beneficial effect of the improvement is that the support and the measuring part can be installed on the foundation at different positions through the setting of the plurality of groups of the bolt set one, thereby stably supporting and appropriately detecting the composite beam component of different length specifications.

[0019] In order to conveniently install the support and the measuring part on the foundation through the use of the bolt set one;

[0020] As a further improvement of the above technical solution: the support piece comprises a bottom plate one, the measuring piece comprises a bottom plate two, the bottom plate one and the bottom plate two are both provided with through holes matched with a bolt set one, the bottom plate one and the bottom plate two are both flat plate structures, the top end of the bottom plate one is provided with a support seat, and the support seat is matched with the support laminated beam structure.

[0021] The improved beneficial effect is that the support piece and the measuring piece can be stably installed on the foundation through the bolt structure.

[0022] In order to quickly and conveniently install and position the digital dial gauge,

[0023] As a further improvement of the above technical solution: the bottom plate two is provided with a mounting rack, one end of the mounting rack is connected with a sleeve, the digital dial gauge is slidably inserted into the sleeve, and an internal thread through hole of a threaded connection jacking bolt is formed in the side surface of the sleeve in the radial direction.

[0024] The improved beneficial effect is that the operator can slide the digital dial gauge in the sleeve and quickly and stably lock the digital dial gauge by screwing the jacking bolt.

[0025] The part not involved in the device is the same as or can be realized by the prior art. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 It is a structural schematic diagram of the utility model;

[0027] Figure 2 It is a structural schematic diagram of the foundation in the utility model;

[0028] Figure 3 It is a structural schematic diagram of the support piece in the utility model;

[0029] Figure 4 It is a structural schematic diagram of the measuring piece in the utility model;

[0030] Figure 5 It is a structural schematic diagram of the power frame in the utility model;

[0031] Figure 6 It is an enlarged view of A in the utility model;

[0032] In the figure: 1, foundation; 2, bolt group one; 3, support; 31, bottom plate one; 32, support seat; 4, measuring piece; 41, bottom plate two; 42, mounting frame; 43, sleeve; 44, tightening bolt; 45, digital dial gauge; 5, moving groove; 6, bolt group two; 7, power frame; 71, fixed frame; 72, lifting wheel; 721, connecting rod; 722, oil cylinder; 723, support wheel; 73, controller; 74, hydraulic cylinder; 75, loading support; 76, bottom plate three. DETAILED DESCRIPTION

[0033] In order to make the technical personnel in the art better understand the technical solutions of the present application, the present application will be described in detail below in conjunction with the drawings, and the description in this part is only exemplary and explanatory, and should not have any limiting effect on the protection scope of the present application.

[0034] Example 1:

[0035] As Figure 1--6 shown: a load transmission test equipment for composite beam, including foundation 1, a plurality of groups of bolts group one 2 are buried on the foundation 1, the foundation 1 on the left and right sides of bolt group one 2 is provided with moving groove 5, the moving groove 5 is installed with power frame 7, the bottom end of the fixed frame 71 in the power frame 7 is adaptively connected bolt group two 6, the bolt group two 6 is buried on the foundation 1 on both sides of the moving groove 5, the bolt group one 2 on the front and back sides of the power frame 7 is installed with two groups of support pieces 3, the bolt group one 2 is also installed with measuring piece 4, because the position of support piece 3, measuring piece 4, power frame 7 relative to the composite beam component is stably and accurately fixed, thus the measuring point, vertical load point on the symmetry plane of the composite beam component can be effectively guaranteed, further guarantee the accuracy of vertical load data analysis of the composite beam component, the bottom side of the fixed frame 71 is provided with lifting wheel 72, the lifting wheel 72 includes connecting rod 721, one end of the connecting rod 721 is rotatably connected with the fixed frame 71 through the pin shaft, the other end of the connecting rod 721 is rotatably connected with oil cylinder 722 through the pin shaft, the bottom end of the oil cylinder 722 is rotatably installed with support wheel 723, the support wheel 723 moves to the lower side of the fixed frame 71 and rolls with the foundation 1 under the support of the connecting rod 721 and the oil cylinder 722, further enabling the power frame 7 to smoothly move on the foundation 1 and facilitate the hoisting of the composite beam component, the support wheel 723 is installed on the inner side of the moving groove 5, the moving groove 5 plays a limiting guide role, enabling the power frame 7 to stably move along the extension direction of the moving groove 5, the bottom end of the fixed frame 71 is provided with bottom plate three 76, the bottom plate three 76 is provided with slot hole adaptively inserted bolt group two 6, the top of the fixed frame 71 is installed with the cylinder body of hydraulic cylinder 74, the bottom end of the piston rod of the hydraulic cylinder 74 is installed with loading bracket 75, the fixed frame 71 is installed with controller 73, the support wheel 723 moves to the upper side of the bottom plate three 76 when the oil cylinder 722 is contracted, further enabling the bottom plate three 76 to be flatly connected with the foundation 1 and stably connected with the foundation 1 through bolt group two 6 and nut, thereby enabling the hydraulic cylinder 74 to drive the loading bracket 75 to apply effective vertical load to the composite beam component, a plurality of groups of bolt group one 2 are equidistantly buried on the foundation 1 along the extension direction of the moving groove 5, the support piece 3 and the measuring piece 4 can be installed on the foundation 1 at different positions through the setting of a plurality of groups of bolt group one 2, further playing a stable support and suitable detection role for the composite beam component of different length specifications, the support piece 3 includes bottom plate one 31, the measuring piece 4 includes bottom plate two 41, the bottom plate one 31 and the bottom plate two 41 are both provided with through hole adaptively sleeving bolt group one 2, the bottom plate one 31 and the bottom plate two 41 are both flat plate structures, the top end of the bottom plate one 31 is provided with support seat 32, the support seat 32 adaptively supports the composite beam component, the support piece 3 and the measuring piece 4 can be stably installed on the foundation 1 through the bolt structure, the bottom plate two 41 is installed with mounting bracket 42, one end of the mounting bracket 42 is connected with sleeve pipe 43,The digital dial gauge 45 is slidably installed in the sleeve 43, and a threaded hole is formed in the side of the sleeve 43 in a radial direction to pass through a threaded connecting jacking bolt 44, an operator can slide the digital dial gauge 45 in the sleeve 43, and lock the digital dial gauge 45 quickly and stably by screwing the jacking bolt 44.

[0036] The working principle of the technical solution is as follows: the gantry or the forklift is used to transport the composite beam component to the upper side of the support 3, the composite beam component is lowered to make the support 3 support the two ends of the bottom of the composite beam component, then the power frame 7 located at one side of the composite beam component is pushed to move to the middle position of the composite beam component along the moving groove 5 under the support of the support wheel 723, the bolt groove formed in the bottom plate 76 is located vertically above the bolt group 6, then the controller 73 is controlled to extend the oil cylinder 722, and then the bottom end of the connecting rod 721 drives the support wheel 723 to rotate upward, so that the bottom plate 76 falls on the foundation 1, and the nut is screwed on the bolt group 6 to lock the position of the power frame 7 stably; then the operator touches the digital dial gauge 45 at the bottom of the composite beam component to perform zero operation, and then controls the hydraulic cylinder 74 to extend, so that the hydraulic cylinder 74 applies a vertical load to the composite beam component through the loading bracket 75, and the strength of the composite beam component against the vertical load is measured by the digital value change of the hydraulic cylinder 74 under different applied pressures.

[0037] It should be noted that in this document, the terms "comprising", "including", or any other variant thereof are intended to cover a non-exclusive inclusion, such that processes, methods, articles, or devices that comprise a list of elements not only include those elements, but also include other elements that are not expressly listed, or are inherent to such processes, methods, articles, or devices.

[0038] The principles and embodiments of the application are described herein by using specific examples, and the above examples are only used to help understand the method and core idea of the application. The above description is only the preferred embodiment of the application, and it should be pointed out that due to the limitation of language expression, there are infinite specific structures, and for ordinary skilled persons in the technical field, some improvements, decorations or changes can be made without departing from the principles of the application, or the above technical features can be combined in a proper way; these improvements, decorations, changes or combinations, or the application of the concept and technical solution of the application to other fields without improvement, should be regarded as the protection scope of the application.

Claims

1. A load transmission test device for composite beams, characterized by: The invention comprises a foundation (1), wherein a plurality of bolt groups (2) are buried on the foundation (1), movable grooves (5) are opened on the foundation (1) on the left and right sides of the bolt group (2), a power frame (7) is rotatably mounted on the movable groove (5), the bottom end of the fixed frame (71) in the power frame (7) is adapted to connect the bolt group (6), the bolt group (6) is buried on the foundation (1) on both sides of the movable groove (5), two groups of support members (3) are relatively mounted on the bolt group (2) on the front and rear sides of the power frame (7), and a measuring member (4) is also mounted on the bolt group (2).

2. The load transmission testing device for composite beams according to claim 1, characterized in that: A lifting wheel (72) is provided on the bottom side of the fixing frame (71), and the lifting wheel (72) includes a connecting rod (721). One end of the connecting rod (721) is rotatably connected to the fixing frame (71) via a pin shaft, and the other end of the connecting rod (721) is rotatably connected to an oil cylinder (722) via a pin shaft. A supporting wheel (723) is rotatably mounted on the bottom end of the oil cylinder (722).

3. The load transmission testing device for composite beams according to claim 2, characterized in that: The support wheel (723) is rollingly mounted on the inner side of the moving groove (5).

4. The load transmission testing device for composite beams according to claim 1, characterized in that: The bottom end of the fixing frame (71) is provided with a bottom plate three (76), and a slot hole for fitting the bolt group two (6) is opened on the bottom plate three (76). The top of the fixing frame (71) is provided with a cylinder body of a hydraulic cylinder (74), and the bottom end of the piston rod of the hydraulic cylinder (74) is provided with a loading bracket (75). The fixing frame (71) is provided with a controller (73).

5. The load transmission testing device for composite beams according to claim 1, characterized in that: A plurality of groups of bolt groups (2) are buried at equal intervals on the foundation (1) along the extension direction of the movable groove (5).

6. The load transmission testing device for composite beams according to claim 1, characterized in that: The support member (3) includes a bottom plate 1 (31), and the measuring member (4) includes a bottom plate 2 (41). Both the bottom plate 1 (31) and the bottom plate 2 (41) are provided with through holes adapted to receive the matching bolt group 1 (2). Both the bottom plate 1 (31) and the bottom plate 2 (41) are flat plate structures. The top end of the bottom plate 1 (31) is provided with a support seat (32), and the support seat (32) is adapted to support the composite beam member.

7. The load transmission testing device for composite beams according to claim 6, characterized in that: A mounting frame (42) is mounted on the second bottom plate (41), one end of the mounting frame (42) is connected to a sleeve (43), a digital dial indicator (45) is slidably inserted into the sleeve (43), and an internal threaded through hole for threadedly connecting a tightening bolt (44) is provided on the side surface of the sleeve (43) in a radial direction.

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