Post-cast strip structure beam static test counterforce support

Abstract

The utility model relates to civil engineering static test technical field, concretely discloses a post-pouring band structure beam static test counterforce support, including leg part, set up top connecting part on leg part and the anchoring part for fixing leg part on the base ground, the leg part includes two vertical interval arrangement's leg, both ends of leg are equipped with the end steel plate, and the both sides of end steel plate stretch to the outside of leg, a plurality of rib plates are equipped with between end steel plate and leg, and the rib plate is dispersed and is equipped with on the outside of leg, and the rib plate is welded and fixed with the side of end steel plate close to leg and the outside of leg respectively, the top connecting part includes the force transmission steel plate that is equipped with simultaneously on two legs, and the force transmission steel plate is connected and fixed through high -strength bolt with two leg top end's end steel plate simultaneously, the middle part of force transmission steel plate is equipped with the round hole for placing steel pull rod, and the overall volume is small, light in weight, convenient to install, and the convenient turnover use can bear the load, and the stability is high, and the applicability is wide.

Description

Technical Field

[0001] This utility model relates to the field of static testing technology in civil engineering, and in particular to a reaction support for static testing of post-cast strip structural beams. Background Technology

[0002] In the fields of civil engineering, mechanical manufacturing, and materials science, static testing is a core method for evaluating the load-bearing capacity, deformation characteristics, and failure modes of structural components. During the test, the load applied by the loading equipment needs to be transferred to the foundation or other fixed structures through reaction supports to form a stable reaction system. However, traditional reaction supports have many technical drawbacks. Most supports are large-scale fixed devices in laboratories, mainly composed of beams, columns, bases, lifting systems, hydraulic systems, and adjusting pads. They are large in size, expensive, difficult to move and relocate, and occupy space resources. At the same time, there is a contradiction between load-bearing capacity and stability. Increasing the load-bearing capacity requires increasing the cross-sectional dimensions of the components, resulting in bulky supports that affect the efficiency of movement and installation. Furthermore, under high loads, supports are prone to local buckling or overall lateral displacement, requiring additional reinforcement measures, which further increases complexity. In addition, large reaction support devices are difficult to move due to their large size and weight, and have poor reusability. Utility Model Content

[0003] The purpose of this utility model is to provide a reaction support for static testing of post-cast strip structural beams, in order to solve the technical problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: A static test reaction support for a post-cast strip structural beam includes a leg component, a top connecting component on the leg component, and an anchoring component for fixing the leg component to the foundation ground. The leg component includes two vertically spaced legs, each with a cap steel plate at both ends. The cap steel plates are welded to the ends of the legs, extending outwards on both sides. Multiple ribs are provided between the cap steel plates and the legs, distributed on the outer sides of the legs. The ribs are respectively positioned on the side of the cap steel plate closest to the legs and... The outriggers are welded and fixed on the outside. Multiple bolt holes are distributed on the end cap steel plate. The top connecting component includes a force transmission steel plate located above both outriggers. The force transmission steel plate has two sets of bolt holes that are respectively adapted to the positional relationship of the bolt holes. High-strength bolts are provided on the force transmission steel plate. The force transmission steel plate is connected and fixed to the end cap steel plate at the top of both outriggers by high-strength bolts. A round hole for placing steel tie rods is provided in the middle of the force transmission steel plate. The anchoring component includes multiple chemical anchors on the end cap steel plate at the bottom of the outriggers.

[0005] Furthermore, the outrigger is made of H-beam steel, with a length of 1000mm and dimensions of 450*200*9*14mm.

[0006] Furthermore, the flanges of the two outriggers are parallel to each other, and the webs of the two outriggers are in the same plane.

[0007] Furthermore, each end of the outrigger is provided with six ribs, which are 10mm thick steel plates, and the ribs are welded and fixed to the flange plates of the outrigger.

[0008] Furthermore, the specifications of the force-transmitting steel plate are 750*750*20mm, and the diameter of the round hole is 40mm.

[0009] Furthermore, the chemical anchor bolt is 300 mm in length.

[0010] Compared with the prior art, this utility model has the following features and beneficial effects: This utility model, by setting out a support leg component, a top connecting component on the support leg component, and an anchoring component for fixing the support leg component to the foundation ground, has a small overall size, light weight, convenient installation, low cost, and is easy to reuse. At the same time, it can withstand large loads, has high stability, and is more widely applicable, meeting the testing requirements of various components. It is also reusable, occupies little space, is convenient for transportation and storage, reduces overall project costs, is simple to operate, and is easy to maintain. It solves the technical problems of existing reaction supports that are either too large, lack rigidity, or have low reusability. It has the characteristics of safety and applicability, has good promotion and practical value, and will generate good economic benefits after widespread application. Attached Figure Description

[0011] Figure 1 This is a front view structural diagram of the present invention; Figure 2 This is a schematic diagram of the left-side structure of this utility model; Figure 3 This is a top view of the structure of this utility model.

[0012] Reference numerals: 1. Outrigger; 2. End plate; 3. Rib; 4. Force transmission plate; 5. High-strength bolt; 6. Round hole; 7. Chemical anchor; 8. Foundation ground. Detailed Implementation

[0013] To make the technical means, innovative features, objectives and effects of this utility model easier to understand, the utility model will be further described below.

[0014] The embodiments described herein are specific implementations of this utility model, used to illustrate the concept of this utility model. They are all illustrative and exemplary, and should not be construed as limiting the implementation methods or scope of this utility model. In addition to the embodiments described herein, those skilled in the art can employ other obvious technical solutions based on the content disclosed in the claims and specification of this application. These technical solutions include those that make any obvious substitutions and modifications to the embodiments described herein.

[0015] This utility model discloses a reaction support for static testing of a post-cast strip structural beam, such as... Figures 1 to 3 As shown, the system includes a leg assembly, a top connecting component on the leg assembly, and an anchoring component for fixing the leg assembly to the foundation ground 8. The leg assembly includes two vertically spaced legs 1, each leg 1 being an H-beam with a length of 1000mm and dimensions of 450*200*9*14mm. The flanges of the two legs 1 are parallel to each other, and the webs of the two legs 1 are in the same plane. Each end of the leg 1 has a head plate 2, which is welded to the end of the leg 1. The head plates 2 extend to the outer sides of the flanges of the leg 1 on both sides, and are perpendicular to both the flanges and the webs of the leg 1. Multiple ribs 3, each 10mm thick steel plate, are provided between the head plates 2 and the leg 1. Each end of the leg 1 has six ribs 3, which are distributed on the outer sides of the flanges of the leg 1. The ribs 3 are close to the head plates 2. The leg 1 is welded and fixed to one side of the flange plate of the outrigger 1. The end plate 2 has multiple bolt holes with a diameter of 28mm. The top connecting component includes a force transmission steel plate 4 located above both outriggers 1. The force transmission steel plate 4 has a size of 750*750*20mm. The force transmission steel plate 4 has two sets of bolt holes that are respectively matched with the position of the bolt holes. The force transmission steel plate 4 has high-strength bolts 5. The force transmission steel plate 4 is connected and fixed to the end plate 2 at the top of both outriggers 1 by the high-strength bolts 5. The center of the force transmission steel plate 4 has a round hole 6 for placing the steel tie rod. The round hole 6 has a diameter of 40mm to facilitate the application of load by the jack. The anchoring component includes multiple M24 chemical anchors 7 located on the end plate 2 at the bottom of the outrigger 1. The chemical anchors 7 are 300mm long and pass through the end plate 2 to fix it to the foundation ground 8, anchoring the outrigger component to the ground.

[0016] During installation, first measure and mark the position of the chemical anchor bolt 7, then drill holes and install the chemical anchor bolt 7, ensuring the anchoring length is not less than 200mm. Install the support leg components and anchor them to the chemical anchor bolt 7 with nuts. The support leg components are made of two H-beams welded to the end plate 2 respectively. Then install the top connecting components and fix the force transmission steel plate 4 to the support leg components with M27 high-strength bolts 5. After installation, its top surface is on the same horizontal plane, and its planar position is controlled. A 40mm diameter circular hole 6 is reserved in the center of the force transmission steel plate 4 for placing the steel tie rod to facilitate the application of load by the jack. Then apply a static load to the specimen through the jack. The reaction force is transmitted by the force transmission steel plate 4 and the support leg components. Finally, after the test is completed, the reaction support is removed and used for other test tasks.

[0017] This utility model, by setting out a support leg component, a top connecting component on the support leg component, and an anchoring component for fixing the support leg component to the foundation ground, has a small overall size, light weight, convenient installation, low cost, and is easy to reuse. At the same time, it can withstand large loads, has high stability, and has a wider range of applications. It can meet the testing requirements of various components, and is reusable. It occupies little space resources, is convenient for transportation and storage, reduces the overall project cost, is simple to operate, and is easy to maintain. It solves the technical problems of existing reaction supports that are either too large, lack rigidity, or have low reusability.

[0018] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0019] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A reaction support for static testing of a post-cast strip structural beam, characterized in that: The system includes a leg assembly, a top connecting component on the leg assembly, and an anchoring component for fixing the leg assembly to the foundation ground (8). The leg assembly includes two vertically spaced legs (1), each leg (1) having a head plate (2) at both ends. The head plates (2) are welded to the ends of the legs (1), and the head plates (2) extend to the outside of the legs (1) on both sides. Multiple ribs (3) are provided between the head plates (2) and the legs (1), and the ribs (3) are distributed on the outside of the legs (1). The ribs (3) are welded to the side of the head plates (2) closest to the legs (1) and the outside of the legs (1), respectively. The end cap steel plate (2) is fixed with multiple bolt holes 1 distributed on it. The top connecting component includes a force transmission steel plate (4) simultaneously located above the two legs (1). The force transmission steel plate (4) has two sets of bolt holes 2 respectively adapted to the positional relationship of the bolt holes 1. The force transmission steel plate (4) is provided with high-strength bolts (5). The force transmission steel plate (4) is simultaneously connected and fixed to the end cap steel plate (2) at the top of the two legs (1) by high-strength bolts (5). The force transmission steel plate (4) has a round hole (6) in the middle for placing steel tie rods. The anchoring component includes multiple chemical anchors (7) provided on the end cap steel plate (2) at the bottom of the legs (1).

2. The reaction support for static testing of a post-cast strip structural beam according to claim 1, characterized in that: The outrigger (1) is an H-beam, with a length of 1000mm and a specification of 450*200*9*14mm.

3. The reaction support for static testing of a post-cast strip structural beam according to claim 2, characterized in that: The flanges of the two outriggers (1) are parallel to each other, and the webs of the two outriggers (1) are in the same plane.

4. The reaction support for static testing of a post-cast strip structural beam according to claim 2, characterized in that: Each end of the outrigger (1) is provided with six ribs (3), which are 10mm thick steel plates. The ribs (3) are welded and fixed to the flanges of the outrigger (1).

5. The reaction support for static testing of a post-cast strip structural beam according to claim 1, characterized in that: The force-transmitting steel plate (4) has a specification of 750*750*20mm, and the diameter of the round hole (6) is 40mm.

6. A reaction support for static testing of a post-cast strip structural beam according to any one of claims 1 to 5, characterized in that: The chemical anchor (7) is 300 mm in length.

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