A non-isostatic sliding lateral force resisting jacking device

Abstract

The utility model provides a kind of non-equal elevation sliding lateral force resistance jacking device, it is related to truss construction technical field.A kind of non-equal elevation sliding lateral force resistance jacking device, including main body structure, pre-buried in the guide sliding groove embedded part of main body structure, truss column and tight frame, guide sliding groove embedded part is welded with the guide sliding groove of C type channel steel composition, the side surface between guide sliding groove and guide sliding groove embedded part is fixedly connected with side stopper, the inside sliding of guide sliding groove has the sliding shoe along guide sliding groove sliding, tight frame is placed on main body structure, and it is equipped with propulsion mechanism between tight frame and sliding shoe.The embedding of guide sliding groove embedded part is used for fixed guide sliding groove by main body structure during construction, guide sliding groove embedded part and guide sliding groove are welded during installation, by tight frame and side stopper and each other, utilize propulsion mechanism to promote sliding shoe to complete structure forward movement, and by side stopper to the side surface of C type steel guide sliding groove is fixed, jointly resist lateral force.

Description

Technical Field

[0001] This utility model relates to a jacking device, specifically a non-equal elevation sliding anti-lateral force jacking device, belonging to the field of truss construction technology. Background Technology

[0002] Truss: A structure composed of members connected at both ends by hinges. Trusses are planar or spatial structures generally composed of straight members with triangular units. Truss members mainly bear axial tension or compression, thus making full use of the material's strength. When the span is large, it can save material compared to solid web beams, reduce self-weight, and increase stiffness. In steel structure engineering, truss columns are the core vertical load-bearing components supporting the truss system. Currently, common construction methods for large-span spatial steel trusses include: high-altitude assembly, segmented hoisting, overall hoisting, overall jacking, overall lifting, and folding and unfolding installation. When it is difficult for construction cranes to hoist into position, the operating range of construction cranes is narrow, and the assembly area is limited, the hoisting of large-span steel truss structures with unequal support heights becomes very difficult. Traditional hoisting methods cannot solve this problem well, so a segmented hoisting and sliding construction method is needed.

[0003] Chinese Patent Publication No. CN110273383A discloses a multi-point jacking construction device and method for steel box girders, which ensures uniform force distribution during the jacking process, avoids concentrated stress, and achieves good jacking effect. The multi-point jacking construction device for steel box girders includes: multiple temporary supports for supporting the steel box girder; a longitudinal beam mounted on the temporary supports; a longitudinal guide rail mounted on the longitudinal beam; a sliding shoe located below the steel box girder and on the longitudinal guide rail, cooperating with the guide rail to enable movement of the steel box girder relative to the longitudinal beam; and a longitudinal pushing mechanism arranged along the longitudinal beam to push the sliding shoe along the longitudinal guide rail, including a pushing cylinder, with the cylinder body end connected to a longitudinal pushing block and the cylinder rod end connected to the sliding shoe.

[0004] However, the inventor of the above-mentioned device believes that there are certain defects. In the sliding construction, the truss structure often faces the problem of insufficient lateral stability during the sliding process, especially under the condition of sliding at different elevations, which is more likely to generate lateral displacement or torsion, seriously affecting construction safety and accuracy. Therefore, this utility model provides a sliding anti-lateral force jacking device for sliding at different elevations. Utility Model Content

[0005] The purpose of this utility model is to provide a non-equal elevation sliding anti-lateral force jacking device to solve the above-mentioned problems, so as to solve the problem that the truss structure often faces insufficient lateral stability during the sliding process in the prior art, especially under the condition of non-equal elevation sliding, which is more likely to generate lateral displacement or torsion, seriously affecting construction safety and accuracy.

[0006] This utility model is achieved through the following technical solution: a non-equal elevation sliding anti-lateral force jacking device, comprising a main structure, a guide groove embedded in the main structure, a truss column and a jacking frame, wherein a guide groove composed of C-shaped channel steel is welded onto the guide groove embedded, a side stop is fixedly connected between the side of the guide groove and the guide groove embedded, a sliding shoe slides along the guide groove inside the guide groove, the jacking frame is placed on the main structure, a pushing mechanism is provided between the jacking frame and the sliding shoe, and the bottom of the jacking frame is abutted against the side stop.

[0007] Preferably, the bottom of the clamping frame is fixedly connected with a support foot, which abuts against one side of the side block, thereby clamping the clamping frame.

[0008] Preferably, the bottom of the clamping frame is fixedly connected to two fixed bottom strips, and one end of the propulsion mechanism is installed between the two fixed bottom strips. The fixed bottom strips are used to install and store one end of the propulsion mechanism.

[0009] Preferably, the propulsion mechanism includes a jack, the fixed end of which is installed between two fixed base bars, and the telescopic end of which is hinged to the sliding shoe via a pin. The sliding shoe is pushed to slide horizontally on the guide groove by activating the jack.

[0010] Preferably, the fixed bottom strip is provided with multiple mounting grooves, the fixed end of the jack is fixedly connected to a sliding block, the two ends of the sliding block slide between two mounting grooves, and each set of mounting grooves is connected by a connecting groove.

[0011] Preferably, the contact surfaces of the guide groove and the sliding shoe are both steel plates. The top of the sliding shoe is adapted to the shape of the bottom of the truss column to support the truss column. The guide groove provides a horizontal reaction force by blocking the sliding shoe, so that the sliding shoe can transmit horizontal force while ensuring sliding.

[0012] Preferably, the guide groove embedded part, the guide groove and the side block are welded together. The side block is installed between the guide groove embedded part and the guide groove by welding. The side of the guide groove is reinforced by the side block to jointly resist the lateral force.

[0013] This utility model provides a non-equidistant elevation sliding anti-lateral force jacking device, which has the following beneficial effects:

[0014] 1. During construction, the main structure of this device is used to embed guide rails to fix them. During installation, the guide rails are welded together with the guide rails. The top clamping frame and the side blocks abut against each other. The propulsion mechanism pushes the sliding shoe to move the structure forward. The side blocks are used to fix the side of the C-shaped steel guide rails to resist lateral forces.

[0015] 2. The device pushes the sliding shoe on the guide groove by the bottom support foot of the top clamping frame abutting against the side of the side block. After a single sliding advance, the position of the top clamping frame can be adjusted to facilitate a quick second advance, thus improving construction efficiency. Attached Figure Description

[0016] Figure 1 This is a perspective view of the entire utility model;

[0017] Figure 2 This is a schematic diagram of the bottom structure of the clamping frame of this utility model;

[0018] Figure 3 This utility model Figure 1 Enlarged view of the structure at point A.

[0019] [Explanation of Key Component Symbols]

[0020] 1. Main structure; 2. Guide slide groove embedded parts; 3. Guide slide groove; 4. Side stop block; 5. Slipper; 6. Truss column; 7. Tightening frame; 71. Fixed bottom strip; 72. Installation slide groove; 73. Connecting groove; 8. Jack. Detailed Implementation

[0021] This utility model provides a non-equal elevation sliding anti-lateral force jacking device.

[0022] Please see Figure 1 , Figure 2 and Figure 3 A non-equal elevation sliding anti-lateral force jacking device includes a main structure 1, a guide groove embedded part 2 pre-embedded in the main structure 1, a truss column 6 and a jacking frame 7. A guide groove 3 composed of C-shaped channel steel is welded on the guide groove embedded part 2. A side block 4 is fixedly connected between the side of the guide groove 3 and the guide groove embedded part 2. The guide groove embedded part 2, the guide groove 3 and the side block 4 are welded together. During construction, the guide groove embedded part 2 is embedded in the main structure 1 to fix the guide groove 3. Then, the guide groove 3 is fixed to multiple guide groove embedded parts 2 by welding. The side block 4 is welded to the guide groove 3 and the guide groove embedded part 2.

[0023] Please refer to it again. Figure 1 and Figure 3The guide groove 3 has a sliding shoe 5 that slides along it. The contact surfaces of the guide groove 3 and the sliding shoe 5 are both steel plates. The top of the sliding shoe 5 is adapted to the shape of the bottom of the truss column 6 to support the truss column 6. The length of the sliding shoe 5 determines the ability of the guide groove 3 to resist lateral forces. The length of the sliding shoe is determined according to the magnitude of the lateral support force provided by the guide groove embedded part 2, the guide groove 3, and the side stop block 4 to ensure lateral stability. The contact surfaces of the guide groove 3 and the sliding shoe 5 are both steel plates. The horizontal reaction force is provided by the blocking effect of the guide groove 3 on the sliding shoe 5. The sliding shoe 5 plays the role of transmitting horizontal force while ensuring sliding.

[0024] Please refer to it again. Figure 1 and Figure 2 The tensioning frame 7 is placed on the main structure 1. A propulsion mechanism is provided between the tensioning frame 7 and the sliding shoe 5. Two fixed bottom strips 71 are fixedly connected to the bottom of the tensioning frame 7. One end of the propulsion mechanism is installed between the two fixed bottom strips 71. The propulsion mechanism includes a jack 8. The fixed end of the jack 8 is installed between the two fixed bottom strips 71. The telescopic end of the jack 8 is hinged to the sliding shoe 5 through a pin. By activating the jack 8, the sliding shoe 5 is pushed to slide forward inside the guide groove 3.

[0025] Please refer to it again. Figure 1 and Figure 2 The bottom of the clamping frame 7 is abutted against the side block 4. A support foot is fixedly connected to the bottom of the clamping frame 7. The support foot abuts against one side of the side block 4. The support foot at the bottom of the clamping frame 7 abuts against the side block 4 to restrict the backward sliding of the clamping frame 7, thereby clamping the fixed end of the jack 8. After the push is completed, the clamping frame 7 is pulled closer to the sliding shoe 5 by the retraction of the jack 8. The clamping frame 7 is then flipped so that the support foot at the bottom of the clamping frame 7 abuts against the side block 4 in front for a second push.

[0026] Please refer to it again. Figure 1 and Figure 2 The fixed bottom strip 71 is provided with multiple mounting grooves 72. The fixed end of the jack 8 is fixedly connected to a sliding block. The two ends of the sliding block slide between two mounting grooves 72. Each set of mounting grooves 72 is connected by a connecting groove 73. By adjusting the sliding block at one end of the jack 8 inside the mounting groove 72 at different positions, the maximum pushing distance between the top clamping frame 7 and the sliding shoe 5 can be adjusted.

[0027] Working principle: During the construction phase of the main structure 1, the guide slide groove embedded part 2 is pre-embedded. The guide slide groove 3 made of C-shaped channel steel is welded to the guide slide groove embedded part 2. Side blocks 4 are added on the side. The guide slide groove embedded part 2, guide slide groove 3 and side blocks 4 are connected by welding. The sliding shoe 5 is installed so that the contact surface of its bottom steel plate forms a horizontal force transmission interface with the guide slide groove 3. The truss column 6 is installed on the top of the sliding shoe 5. The top clamping frame 7 is placed directly above the guide slide groove 3 and its supporting feet are pressed against the side blocks 4. The sliding shoe 5 is pushed forward by starting the jack 8 to complete the forward movement of the structure. After the forward movement is completed, the top clamping frame 7 is pulled closer to the sliding shoe 5 by the retraction of the jack 8. The top clamping frame 7 is flipped so that the supporting feet at the bottom of the top clamping frame 7 are pressed against the side blocks 4 in front for a second forward movement.

[0028] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A non-equidistant elevation sliding anti-lateral force jacking device, comprising a main structure (1), a guide groove embedded in the main structure (1) (2), a truss column (6), and a jacking frame (7), characterized in that: The guide groove embedded part (2) is welded with a guide groove (3) made of C-shaped channel steel. A side block (4) is fixedly connected between the side of the guide groove (3) and the guide groove embedded part (2). A sliding shoe (5) slides along the guide groove (3) inside the guide groove (3). A pushing mechanism is provided between the top clamping frame (7) and the sliding shoe (5). The bottom of the top clamping frame (7) is abutted against the side block (4).

2. The non-equal elevation sliding anti-lateral force jacking device according to claim 1, characterized in that: The bottom of the top clamping frame (7) is fixedly connected to a support foot, which abuts against one side of the side block (4).

3. The non-equal elevation sliding anti-lateral force jacking device according to claim 1, characterized in that: The bottom of the clamping frame (7) is fixedly connected to two fixed bottom strips (71), and one end of the propulsion mechanism is installed between the two fixed bottom strips (71).

4. The non-equal elevation sliding anti-lateral force jacking device according to claim 3, characterized in that: The propulsion mechanism includes a jack (8), the fixed end of which is installed between two fixed bottom bars (71), and the telescopic end of which is hinged to the slip shoe (5) by a pin.

5. A non-equal elevation sliding anti-lateral force jacking device according to claim 4, characterized in that: The fixed bottom strip (71) is provided with multiple mounting grooves (72), and the fixed end of the jack (8) is fixedly connected to a sliding block. The two ends of the sliding block slide between two mounting grooves (72), and each set of mounting grooves (72) is connected by a connecting groove (73).

6. The non-equal elevation sliding anti-lateral force jacking device according to claim 1, characterized in that: The contact surfaces of the guide groove (3) and the slipper (5) are both steel plates. The top of the slipper (5) is adapted to the shape of the bottom of the truss column (6) to support the truss column (6).

7. The non-equidistant elevation sliding anti-lateral force jacking device according to claim 1, characterized in that: The guide slide groove embedded part (2), guide slide groove (3) and side stop block (4) are welded together.

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