Adjustable steel pedestal for highway subgrade high-fill precast beam

Abstract

The utility model relates to a highway subgrade high-fill precast beam adjustable steel pedestal which comprises a pedestal panel, the lower side of the pedestal panel is fixedly connected with a plurality of top-layer steel channels, the lower sides of the plurality of top-layer steel channels are fixedly connected with a plurality of middle-layer steel channels, and the lower sides of the plurality of middle-layer steel channels are fixedly connected with a plurality of I-shaped steel. Adjusting blocks are assembled on the lower sides of the H-shaped steel, sliding frames are fixedly connected to the upper sides of the adjusting blocks and slidably connected to the lower sides of the H-shaped steel, locking screws capable of abutting against the H-shaped steel are connected to the sliding frames in a threaded mode, and positioning holes matched with the locking screws are formed in the H-shaped steel. According to the adjustable steel pedestal, the position of the adjusting block can be staggered with a non-bearing area of a roadbed, so that the adjustable steel pedestal can adapt to a more complex highway roadbed.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the roadbed construction technical field, concretely relates to a highway roadbed high fill prefabricated beam adjustable steel pedestal. BACKGROUND

[0002] In highway construction, the prefabricated beam pedestal setting of the high fill area of the roadbed faces many challenges. With the continuous development of highway engineering, the construction quality and stability of the high fill section of the roadbed are increasingly improved. The traditional prefabricated beam pedestal is often a fixed structure, which is difficult to adapt to the complex and variable conditions of the highway roadbed.

[0003] The patent with the authorized announcement number CN214644668U discloses a highway roadbed high fill prefabricated beam adjustable steel pedestal, which can be adjusted according to the different settlement degrees of the roadbed, and has the characteristics of being easy to disassemble and recyclable after disassembly.

[0004] Different roadbed areas have non-bearing areas such as the area above the blind ditch, the area above the isolation layer, and the transition area of the roadbed filler. When these areas bear a large gravity, they will produce obvious structural deformation and settlement phenomena. If the support structure of the prefabricated beam pedestal cannot avoid these non-bearing areas, it will seriously affect the installation accuracy and overall stability of the prefabricated beam, and may lead to cracks, deformation, and even collapse of the highway during subsequent use, thus causing the above-mentioned adjustable steel pedestal to be unable to adapt to the more complex roadbed with non-bearing areas. UTILITY MODEL CONTENTS

[0005] The utility model aims to provide a highway roadbed high fill prefabricated beam adjustable steel pedestal, which can make the position of the adjusting block staggered with the non-bearing area of the roadbed, so that the adjustable steel pedestal can adapt to more complex highway roadbeds.

[0006] The technical scheme adopted by the utility model is as follows:

[0007] A highway roadbed high fill prefabricated beam adjustable steel pedestal, comprising a pedestal panel, the lower side of the pedestal panel is fixedly connected with a plurality of top channel steels, the lower side of the plurality of top channel steels is fixedly connected with a plurality of middle channel steels, the lower side of the plurality of middle channel steels is fixedly connected with a plurality of I-beams, and the lower side of the plurality of I-beams is assembled with adjusting blocks.

[0008] The upper side of the plurality of adjusting blocks is fixedly connected with a sliding frame, and the sliding frame is slidingly connected to the lower side of the I-beam.

[0009] Further, a locking screw that can abut against the I-beam is threadedly connected to the sliding frame, and a positioning hole that is adapted to the locking screw is formed in the I-beam.

[0010] Further, the adjusting block comprises a horizontal plate fixedly connected to the lower side of the sliding frame, circular holes are formed at four end corners of the horizontal plate, a screw rod is inserted into the circular hole, a first nut is threadedly connected to the outer side of the screw rod, the first nut is located at the lower side of the horizontal plate, and a bottom plate is assembled to the lower side of the screw rod.

[0011] The technical effects achieved by the utility model are as follows:

[0012] The adjustable steel pedestal of the highway subgrade high fill prefabricated beam can adjust the position of the adjusting block by moving the sliding frame at the lower side of the I-shaped steel, so that the position of the adjusting block can be staggered with the non-load-bearing area of the subgrade, thereby enabling the adjustable steel pedestal to adapt to more complex highway subgrades. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 is a structural schematic view of the utility model;

[0014] Figure 2 is a combined structural schematic view of the I-shaped steel and the adjusting block of the utility model;

[0015] Figure 3 is a partial explosion structural view of the adjusting block of the utility model;

[0016] Figure 4 is a partial enlarged view of the screw rod of the utility model.

[0017] In the drawings, the component list represented by each reference numeral is as follows:

[0018] 1, pedestal panel; 2, top layer channel steel; 3, middle layer channel steel; 4, I-shaped steel; 5, sliding frame; 6, locking screw; 7, adjusting block; 8, positioning hole; 9, horizontal plate; 10, circular hole; 11, screw rod; 12, first nut; 13, second nut; 14, bottom plate; 15, rotary connecting seat; 16, spherical bead. DETAILED DESCRIPTION

[0019] In order to make the purpose and advantages of the utility model more clear and explicit, the utility model is specifically described below in combination with examples. It should be understood that the following text is only used to describe one or several specific embodiments of the utility model, and does not strictly limit the specific protection range requested by the utility model.

[0020] For example, Figures 1-4As shown, an adjustable steel platform for precast beams in high embankment sections of highway subgrade includes a platform panel 1. Multiple top-layer channel steels 2 are fixedly connected to the lower side of the platform panel 1. Multiple middle-layer channel steels 3 are fixedly connected to the lower side of the multiple top-layer channel steels 2. Multiple I-beams 4 are fixedly connected to the lower side of the multiple middle-layer channel steels 3. Adjusting blocks 7 are mounted on the lower side of each of the multiple I-beams 4. By adjusting the height of the adjusting blocks 7, the lower ends of the multiple adjusting blocks 7 can maintain different heights, thus adapting to the uneven settlement caused by high embankment subgrades. This part is disclosed in detail in Chinese Patent No. CN214644668U, and will not be elaborated further in this technical solution.

[0021] The core of this technical solution is that multiple adjusting blocks 7 are fixedly connected to the upper side of a slide 5, and the slide 5 is slidably connected to the lower side of the I-beam 4. At this time, by moving the slide 5 on the lower side of the I-beam 4, the position of the adjusting block 7 can be adjusted so that the position of the adjusting block 7 can be staggered with the non-load-bearing area of ​​the roadbed, thereby enabling the adjustable steel platform to adapt to more complex highway roadbeds.

[0022] Here, the non-load-bearing area of ​​the roadbed refers to the area above the blind drain, the area above the isolation layer, and the transition area of ​​the roadbed fill material. When subjected to greater gravity, these areas will experience greater structural deformation and settlement.

[0023] Among them, such as Figures 2-3 As shown, in order to position the slide 5 after the movement is completed, the slide 5 is threaded with a locking screw 6 that can abut against the I-beam 4, and the I-beam 4 can be provided with a positioning hole 8 that matches the locking screw 6. By inserting the locking screw 6 into the positioning hole 8, the connection stability between the I-beam 4 and the slide 5 can be greatly improved.

[0024] like Figures 2-4 As shown, the adjusting block 7 includes a horizontal plate 9 fixedly connected to the lower side of the slide 5. Circular holes 10 are provided at the four corners of the horizontal plate 9. A screw 11 is inserted into the inside of the circular hole 10. A first nut 12 and a second nut 13 are threadedly connected to the outside of the screw 11. The first nut 12 is located on the lower side of the horizontal plate 9, and the second nut 13 is located on the upper side of the horizontal plate 9.

[0025] After the height of the screw 11 is adjusted, the lower side of the screw 11 can be abutted against the roadbed, and then the first nut 12 can be rotated so that the first nut 12 abuts against the lower side of the cross plate 9, so that the cross plate 9 can be supported from the lower side by the first nut 12.

[0026] Furthermore, by threading the second nut 13 onto the upper side of the horizontal plate 9, the screw 11 and the horizontal plate 9 can be connected into a single structure.

[0027] like Figure 4As shown, the lower side of the screw rod 11 can be equipped with a bottom plate 14, through which the contact surface of the screw rod 11 and the roadbed can be lifted, so as to reduce the concentrated load on the roadbed.

[0028] The bottom plate 14 can be directly fixedly connected to the lower side of the screw rod 11, or can be rotatably connected to the lower side of the screw rod 11, and in the technical solution, the rotatable connection is preferred, which specifically is that a spherical bead 16 is fixedly connected to the lower side of the screw rod 11, the upper side of the bottom plate 14 is fixedly connected with a rotary connecting seat 15, and the rotary connecting seat 15 is rotatably connected to the outer side of the spherical bead 16, so as to adapt to the slope of the roadbed.

[0029] The above is only the preferred embodiment of the present application, and it should be pointed out that for ordinary skilled in the art, without departing from the principles of the present application, a number of improvements and refinements can be made, and these improvements and refinements should also be considered as the protection scope of the present application. The structures, devices and operation methods not specifically described and explained in the present application are implemented according to the conventional means in the art, unless otherwise specified and limited.

Claims

1. An adjustable steel platform for precast beams in high embankment sections of highway subgrade, characterized in that: The platform includes a base panel (1), on the lower side of which multiple top channel steels (2) are fixedly connected, on the lower side of which multiple middle channel steels (3) are fixedly connected, on the lower side of which multiple middle channel steels (3) are fixedly connected, and on the lower side of which multiple I-beams (4) are fixedly connected, and on the lower side of which multiple I-beams (4) are fitted adjustment blocks (7). Each of the multiple adjusting blocks (7) is fixedly connected to a slide (5) on its upper side, and the slide (5) is slidably connected to the lower side of the I-beam (4).

2. The adjustable steel platform for precast beams in high embankment sections of highway subgrade according to claim 1, characterized in that: The slide (5) is threaded with a locking screw (6) that can abut against the I-beam (4).

3. The adjustable steel platform for precast beams in high embankment sections of highway subgrade according to claim 2, characterized in that: The I-beam (4) has a positioning hole (8) that matches the locking screw (6).

4. The adjustable steel platform for precast beams in high embankment sections of highway subgrade according to claim 1, characterized in that: The adjusting block (7) includes a horizontal plate (9) fixedly connected to the lower side of the slide (5). The four corners of the horizontal plate (9) are provided with round holes (10). A screw (11) is inserted into the round hole (10). A first nut (12) is threaded to the outside of the screw (11). The first nut (12) is located on the lower side of the horizontal plate (9). A base plate (14) is assembled on the lower side of the screw (11).

5. An adjustable steel platform for precast beams in high embankment sections of highway subgrade according to claim 4, characterized in that: The screw (11) is threaded with a second nut (13) on its outer side, and the second nut (13) is located on the upper side of the cross plate (9).

6. An adjustable steel platform for precast beams in high embankment sections of highway subgrade according to claim 4, characterized in that: A spherical bead (16) is fixedly connected to the lower side of the screw (11), and a rotating connecting seat (15) is fixedly connected to the upper side of the base plate (14). The rotating connecting seat (15) is rotatably connected to the outside of the spherical bead (16).

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