Assembled platform and assembly method therefor

Abstract

An assembled platform and an assembly method therefor, which relate to the technical field of prefabricated beam platforms. The assembled platform comprises a plurality of platform units connected end to end, each platform unit comprising two profile steel support members (1), a plurality of distribution beams (2), a steel face plate (3) and a limiting structure (7), wherein the two profile steel support members (1) are spaced apart and arranged in parallel; the plurality of distribution beams (2) span between the top portions of the two profile steel support members (1), and the lower surface and the upper surface of each distribution beam (2) abut against the upper surfaces of the two profile steel support members (1) and the lower surface of the steel face plate (3), respectively; and the limiting structure (7) is arranged between the upper surfaces of the two profile steel support members (1) and the lower surface of the steel face plate (3), and is configured to limit the displacement of the distribution beam (2) and the steel face plate (3) in the extension direction of the platform unit. When a portion of a steel face plate (3) is deformed or dented under the action of an external load, it is only necessary to replace the steel face plate (3) in the platform unit at the corresponding position, thereby effectively reducing the use cost.

Description

An assembled pedestal and method TECHNICAL FIELD

[0001] The present application relates to the technical field of precast beam pedestal, in particular to an assembled pedestal and method. BACKGROUND

[0002] In recent years, with the increasing demand for road traffic, China's transportation infrastructure has developed rapidly, and the bridge construction technology has also been significantly improved. Among them, the prefabricated beam is widely used due to its high quality, high efficiency, controllable risk, and uninterrupted traffic. In the process of producing precast beams, the pedestal is the main temporary component, which is used to bear the reaction force when the prestressed steel bar is tensioned.

[0003] Currently, the method of pouring concrete and laying thin steel plates is often used when building pedestals. Various precast pedestals are laid out according to different structural forms, lengths, and angles of beam plates, which occupies a large amount of temporary land. Such pedestals are slow to build, difficult to quickly form and put into use, and cannot adapt to beams of various spans, which has obvious limitations and high construction costs. In addition, after the completion of the project, the concrete part of the pedestal cannot be reused periodically and becomes construction waste, which needs to be removed and transported.

[0004] SUMMARY

[0005] To at least partially solve the above problems, in a first aspect, the present application provides an assembled pedestal, comprising a plurality of pedestal monomers connected end to end, wherein the pedestal monomer comprises two steel support pieces, a plurality of distribution beams, a steel panel, and a limiting structure. The two steel support pieces are arranged in parallel at intervals. The distribution beams span between the top of the two steel support pieces, and the lower surface and the upper surface of the distribution beam respectively abut the upper surface of the two steel support pieces and the lower surface of the steel panel. The limiting structure is arranged between the upper surface of the two steel support pieces and the lower surface of the steel panel, and is used to limit the displacement of the distribution beam and the steel panel in the extension direction of the pedestal monomer.

[0006] Optionally, the limiting structure is provided as a plurality of limiting blocks, and the limiting blocks are respectively connected to the upper surface of the two steel support pieces and the lower surface of the steel panel. The upper surface and the lower surface of the distribution beam are respectively abutted between the adjacent limiting blocks.

[0007] Optionally, the pedestal monomer further comprises a first compression sealing structure arranged on the two sides of the steel panel parallel to the two steel support pieces, the first compression sealing structure comprises a channel steel, a sealing block and an elastic connecting piece, the channel steel is connected to the side of the steel panel, the opening surface of the channel steel is flush with the outer side surface of the corresponding steel support piece, the sealing block is slidingly arranged in the channel of the channel steel, and the two ends of the elastic connecting piece are respectively connected to the inner side surface of the sealing block and the channel bottom of the channel steel, so that the sealing block at least partially extends out of the opening surface of the channel steel.

[0008] Optionally, the first compression sealing structure further comprises a water storage strip and a flexible water permeable body, the outer side surface of the sealing block is provided with a receiving groove, the flexible water permeable body is slidingly arranged in the receiving groove, and the outer side surface of the flexible water permeable body at least partially extends out of the receiving groove, the water storage strip is arranged between the inner side surface of the flexible water permeable body and the channel bottom of the receiving groove, and the side surface of the water storage strip and the flexible water permeable body abutting each other is provided with a water permeable hole.

[0009] Optionally, the pedestal monomer further comprises a lifting point splicing structure and a second compression sealing structure arranged between adjacent pedestal monomers, the lifting point splicing structure comprises a sliding strip, the two ends of the sliding strip are respectively connected to one of the second compression sealing structures, and the sliding strip and the second compression sealing structure are slidingly arranged between the steel panels of adjacent pedestal monomers.

[0010] Optionally, the pedestal monomer further comprises a pitch adjusting structure arranged between the two steel support pieces, the pitch adjusting structure comprises a plurality of lifting bodies arranged at the two ends and the middle position of the pedestal monomer, the lifting body is arranged in an H-shaped structure horizontally, the upper surface of the upper cross beam of the lifting body penetrates through the steel panel, when the pitch adjusting structure is in a non-working state, the upper surface of the upper cross beam is flush with the upper surface of the steel panel, and the bottom surface of the two ends of the upper cross beam abuts against the upper surface of the steel support piece.

[0011] Optionally, the pitch adjusting structure further comprises two first lifting assemblies, the two first lifting assemblies are respectively connected to the lifting bodies arranged at the two ends of the pedestal monomer, the first lifting assembly comprises a first threaded support and a first threaded sleeve, the first threaded support is arranged directly below the lifting body, one end of the first threaded sleeve is rotationally connected to the lower surface of the lifting body, and the other end of the first threaded sleeve is threadedly connected to the first threaded support.

[0012] Optionally, the perturbation adjusting structure further comprises two second lifting assemblies, the two second lifting assemblies are respectively connected with the two lifting bodies arranged at the middle positions of the pedestal monomers, the second lifting assembly comprises two extension rods, two second threaded supports and two second threaded sleeves, one end of each of the two extension rods is connected to the lower sides of the lifting bodies, the other end of each of the two extension rods penetrates through the two profile steel support members and is rotationally connected to the top end of the corresponding second threaded sleeve, and the bottom end of each of the two second threaded sleeves is threadedly connected with the corresponding second threaded support.

[0013] Optionally, the perturbation adjusting structure further comprises partitions, lifting bars and springs, the upper surface of the lifting body is provided with a limiting groove, a plurality of the partitions are connected in the limiting groove to divide the limiting groove into a plurality of independent spaces, each of the independent spaces is slidably connected with the lifting bar, a water storage space is arranged between the bottom surface of the lifting bar and the groove bottom of the limiting groove, the spring is arranged in the water storage space, and the two ends of the spring are respectively abutted against the bottom surface of the lifting bar and the groove bottom of the limiting groove, a water passing hole penetrating through the water storage space is vertically arranged in the lifting bar, and the upper surface of the lifting bar is connected with a plugging bolt for plugging the water passing hole.

[0014] In a second aspect, the present application further provides a pedestal assembling method based on the assembling type pedestal as described above, comprising:

[0015] S1: assembling the pedestal monomers, first, the two profile steel support members are arranged in parallel and at intervals, then the distribution beam is installed on the two profile steel support members, and then the steel panel is installed on the distribution beam;

[0016] S2: assembling the pedestal, taking the pedestal monomers assembled in the step S1 as the starting point, the assembling of the remaining pedestal monomers is simultaneously performed from the two ends thereof.

[0017] Compared with the prior art, the assembling type pedestal has the following beneficial effects:

[0018] By decomposing one complete pedestal into multiple pedestal monomers, on the one hand, the size of the pedestal monomer is small, and the weight is light, which is convenient for moving, positioning and subsequent transfer, on the other hand, when the local steel panel is deformed and depressed under the action of external load, only the steel panel in the pedestal monomer at the corresponding position needs to be replaced, which effectively reduces the use cost, and by dividing the pedestal monomers of different lengths, it is convenient to splice the overall pedestal according to the design value of the length of the precast beam in the actual construction process, and ensure the adaptability of the length of the pedestal and the length of the precast beam, at the same time, in the actual installation process, the assembly of the pedestal monomer can be synchronized from the middle to both sides, and in the disassembly process, the disassembly of the pedestal monomer can be synchronized from both sides to the middle, thereby significantly improving the construction efficiency of the overall pedestal, in addition, the limiting structure can limit the displacement of the distribution beam in the extension direction of the pedestal monomer, which can effectively prevent the displacement or deflection of the distribution beam and the steel panel under the action of external load and the steel support, and the limiting structure does not limit in other directions, so that the limiting structure has the limiting function, and also greatly facilitates the positioning, assembly and disassembly of the distribution beam and the steel panel. BRIEF DESCRIPTION OF DRAWINGS

[0019] Fig. 1 is a structural schematic diagram of the assembled pedestal of the embodiment of the present application;

[0020] Fig. 2 is a front view of the assembled pedestal of the embodiment of the present application;

[0021] Fig. 3 is an enlarged view of the structure at A1 in Fig. 1;

[0022] Fig. 4 is a sectional view of A-A in Fig. 2;

[0023] Fig. 5 is an enlarged view of A3 in Fig. 4;

[0024] Fig. 6 is an enlarged view of the structure at A2 in Fig. 1;

[0025] Fig. 7 is an installation schematic diagram of the lifting strip in the assembled pedestal of the embodiment of the present application.

[0026] Explanation of reference signs:

[0027] Steel support; 11, rib; 12, foot; 13, limiting block; 14, connecting hole; 2, distribution beam; 3, steel panel; 4, first compression sealing structure; 41, channel steel; 42, sealing block; 43, elastic connecting piece; 44, containing groove; 45, water storage strip; 46, flexible water permeable body; 5, lifting point splicing structure; 51, slide bar; 52, second limiting sliding groove; 53, second limiting sliding block; 6, pitch adjusting structure; 61, lifting body; 611, limiting groove; 62, first threaded support; 63, first threaded sleeve; 64, partition plate; 65, lifting strip; 651, water hole; 652, plugging bolt; 66, spring; 67, extension rod; 68, second threaded support; 69, second threaded sleeve; 7, limiting structure; 8, second compression sealing structure. DETAILED DESCRIPTION

[0028] In order to make the above objectives, features and advantages of the present application more obvious and easy to understand, the specific embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0029] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connection" should be understood in a broad sense, for example, it can be fixed connection, or detachable connection, or integrally connected, it can be directly connected, or indirectly connected through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0030] In the description of the present application, the description of the terms "embodiment", "one embodiment", "some embodiments", "exemplarily" and "one embodiment" means that the specific features, structures, materials or characteristics described in connection with the embodiment or embodiment are included in at least one embodiment or embodiment of the present application. In the present application, the illustrative description of the above terms does not necessarily refer to the same embodiment or embodiment. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or embodiments in a suitable manner.

[0031] The terms "first", "second", etc. are only used for description purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include at least one of the features.

[0032] The Z axis in the drawings represents the vertical direction, i.e. the up-down position, and the positive direction of the Z axis represents up and the negative direction of the Z axis represents down; the X axis in the drawings represents the horizontal direction, i.e. the left-right position, and the positive direction of the X axis represents left and the negative direction of the X axis represents right; and the Y axis in the drawings represents the front-rear position, and the positive direction of the Y axis represents the front side and the negative direction of the Y axis represents the rear side. It should be noted that the above-mentioned meanings of the Z axis, the Y axis and the X axis are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0033] The embodiment of the present application provides a kind of assembled pedestal, including multiple first and last connection pedestal monomer, pedestal monomer includes two profile steel support 1, multiple distribution beam 2, steel panel 3 and limiting structure 7, two profile steel support 1 is spaced apart and is arranged in parallel, multiple distribution beam 2 is straddled between the top of two profile steel support 1, and the lower surface, upper surface of distribution beam 2 respectively with the upper surface of two profile steel support 1, the lower surface of steel panel 3 is abutted, limiting structure 7 is located in the upper surface of two profile steel support 1 and the lower surface of steel panel 3, to limit the displacement of distribution beam 2 and steel panel 3 in the extension direction of pedestal monomer.

[0034] In the embodiment, by decomposing one complete pedestal into multiple pedestal monomers, on the one hand, the size of the pedestal monomer is small, and the weight is light, which is convenient for moving, positioning and subsequent transfer, on the other hand, when the steel panel 3 at the local position is deformed and depressed under the action of external load, only the steel panel 3 in the pedestal monomer at the corresponding position needs to be replaced, which effectively reduces the use cost, and by dividing the pedestal monomers into different lengths, it is convenient to splice the overall pedestal according to the design value of the length of the precast beam in the actual construction process, to ensure the adaptability of the length of the pedestal and the length of the precast beam, for example, the pedestal monomers can be divided into multiple models according to the length, such as A model representing the length of the pedestal monomer is 4m, B model representing the length of the pedestal monomer is 2m, and C model representing the length of the pedestal monomer is 1m, two A models and one B model can make a 10m pedestal, at the same time, in the actual installation process, the pedestal monomers can be spliced from the middle to both sides synchronously, and in the disassembly process, the pedestal monomers can be disassembled from both sides to the middle synchronously, thereby significantly improving the construction efficiency of the overall pedestal, in addition, the limiting structure 7 can limit the displacement of the distribution beam 2 in the extension direction of the pedestal monomer along the X axis direction in the drawing, which can effectively prevent the displacement or deflection of the distribution beam 2 and the steel panel 3 from the profile steel support 1 under the action of external load, and the limiting structure 7 does not limit in other directions, so that the limiting structure 7 not only has the limiting function, but also greatly facilitates the positioning, assembly and disassembly of the distribution beam 2 and the steel panel 3.

[0035] As shown in Figure 1, first, the profile steel support 1 can be rectangular, the length is greater than the height, the two sides of the profile steel support 1 are concave to form a rectangular groove, a plurality of vertical ribs 11 are uniformly welded in the length direction in the groove, through the setting of the groove and the rib 11, the load-bearing performance of the profile steel support 1 is ensured while the self weight of the profile steel support 1 is reduced, which is convenient for installation and subsequent transportation. The bottom of the profile steel support 1 is welded with a plate-shaped footing 12, the footing 12 can also be integrally formed with the bottom of the profile steel support 1, the plate-shaped footing 12 can effectively increase the contact area of the profile steel support 1 with the ground, thereby reducing the contact stress and preventing large settlement;

[0036] Secondly, a plurality of distribution beams 2 can be arranged uniformly in the length direction along the top surface of the profile steel support 1 in the X-axis direction in the figure, the distribution beam 2 spans the two sides of the profile steel support 1, the two ends of the distribution beam 2 are left with the same interval from the outer side of the two sides of the profile steel support 1, in this embodiment, the distribution beam 2 can adopt H-shaped steel, which reduces the self weight while ensuring good load-bearing performance. The top surface of the distribution beam 2 is provided with a steel panel 3, the length of the steel panel 3 is consistent with the length of the profile steel support 1, and the width of the steel panel 3 is consistent with the length of the distribution beam 2. As shown in Figure 3, the limiting structure 7 can be a plurality of limiting blocks 13, the limiting blocks 13 can be arranged on both sides of the wing plate of the distribution beam 2, the lower limiting block 13 is welded with the top surface of the profile steel support 1, and the upper limiting block 13 is welded with the bottom surface of the steel panel 3. Under the limiting action of the limiting block 13, the displacement or deflection of the distribution beam 2 and the steel panel 3 from the profile steel support 1 under the action of external load can be effectively prevented, in addition, the positioning action of the limiting block 13 greatly facilitates the positioning assembly and disassembly of the distribution beam 2 and the steel panel 3;

[0037] In addition, a plurality of connecting holes 14 are opened on the side wall of the profile steel support 1 in the height direction along the Z-axis direction in the figure, the connecting hole 14 is provided with an internal thread, and the adjacent two pedestal monomers are connected and fixed by bolts. By decomposing a complete pedestal into a plurality of pedestal monomers, on the one hand, the size of the pedestal monomer is small, the weight is light, and the movement, positioning and subsequent transportation are convenient, on the other hand, when the steel panel 3 at the corresponding position is deformed and depressed under the action of external load, only the steel panel 3 in the pedestal monomer at the corresponding position needs to be replaced, which effectively reduces the use cost. In addition, during the actual installation process, it can be performed synchronously from the middle to both sides, and during the disassembly process, it can be performed synchronously from both sides to the middle, thereby significantly improving the construction efficiency of the whole pedestal.

[0038] During the pouring process, the two sides of the pedestal monomer need to be installed with a formwork, and the contact part of the steel panel 3 and the formwork is often difficult to be completely pressed and sealed, so that the concrete slurry flows out from the gap, which not only causes the waste of building materials, but also affects the physical and mechanical properties of the concrete due to excessive slurry loss. Based on this, in the embodiment, a first compression sealing structure 4 as shown in FIGS. 4 and 5 is arranged on the side surface of the steel panel 3.

[0039] The first compression sealing structure 4 includes a channel steel 41 welded with the side surface of the steel panel 3, and the opening direction of the channel steel 41 is away from the steel panel 3. It needs to be emphasized that the opening surface of the channel steel 41 is flush with the outer side surface of the steel support 1. A sealing block 42 is slidingly connected in the channel steel 41, the width of the sealing block 42 is consistent with the width of the opening of the channel steel 41, the length of the sealing block 42 is consistent with the length of the channel steel 41, and the height of the sealing block 42 is less than the depth of the opening of the channel steel 41. A plurality of elastic connecting pieces 43 are uniformly arranged between the sealing block 42 and the channel steel 41 along the length direction of the channel steel 41, and the elastic connecting pieces 43 realize the elastic connection between the sealing block 42 and the channel steel 41. In the embodiment, the elastic connecting piece 43 is preferably a compression spring, one end of the compression spring is welded with the inner side surface of the sealing block 42, and the other end of the compression spring is welded with the bottom surface of the opening of the channel steel 41.

[0040] In order to prevent the sealing block 42 from deviating during sliding, a plurality of first limiting sliding grooves are opened in the inner side of the side walls of the channel steel 41, and a first limiting sliding block adapted to the first limiting sliding groove is welded on the two sides of the sealing block 42, and the first limiting sliding block corresponds to the first limiting sliding groove one by one. Through the setting of the first limiting sliding block and the first limiting sliding groove, the sliding direction of the sealing block 42 is limited.

[0041] When the formwork is installed, the formwork extrudes the sealing block 42 into the channel steel 41 along the horizontal direction, the outer side surface of the sealing block 42 is flush with the opening surface of the channel steel 41, and the rebound force generated by the compression of the elastic connecting piece 43 supports the sealing block 42 and the formwork to be pressed and sealed, which effectively prevents the loss of slurry in the concrete.

[0042] Currently, wooden formworks are usually used in construction, however, the surface of the wooden formwork is rough and uneven, and the sealing block 42 is difficult to completely contact and fit with the formwork. Based on this, a rectangular receiving groove 44 is formed on the outer side surface of the sealing block 42, the opening direction of the receiving groove 44 is consistent with the opening direction of the channel steel 41, and a flexible water-permeable body 46 with equal cross-sectional dimensions is slidably connected in the receiving groove 44, the flexible water-permeable body 46 partially protrudes outside the receiving groove 44, and the flexible water-permeable body 46 can be sponge or sponge rubber, and in the embodiment, the sponge rubber is preferred. A cuboid-shaped water storage strip 45 is arranged between the inner side surface of the flexible water-permeable body 46 and the groove bottom of the receiving groove 44, the inner side surface of the water storage strip 45 is glued to the groove bottom of the receiving groove 44, the side surface of the water storage strip 45 is glued to the side wall of the receiving groove 44, and the outer side surface of the water storage strip 45 is in contact with the inner side surface of the flexible water-permeable body 46. The water storage strip 45 is hollow inside to form a water storage space, and the water storage strip 45 is made of flexible material, and in the embodiment, the water storage strip 45 is preferably made of rubber material. A plurality of water-permeable holes are uniformly arranged on the upper portion of the outer side surface of the water storage strip 45 along the length direction of the water storage strip 45.

[0043] When the formwork is installed, the formwork extrudes the flexible water-permeable body 46 to make it compressed and enter the receiving groove 44, the water storage strip 45 on the inner side of the flexible water-permeable body 46 is extruded, the water in the inside of the water storage strip 45 is discharged from the water-permeable holes, the internal pore channels of the flexible water-permeable body 46 are developed, and the water migrates to the wooden formwork under the capillary action of the flexible water-permeable body 46, the formwork is soaked and expanded, on one hand, the expansion part is actively abutted against the sealing block 42, and on the other hand, the expansion part is softened and the anti-deformation ability is reduced, and a certain deformation can occur in the process of abutting against the sealing block 42, so that the fit between the two is more compact. In addition, the formwork installation process is before the concrete pouring process, and the compression and sealing effect of the formwork and the sealing block 42 is further improved by the arrangement of the water storage strip 45 and the flexible water-permeable body 46 before the concrete pouring, so as to prevent the loss of concrete slurry in the initial pouring stage.

[0044] After the precast beam pouring and curing are completed, the precast beam is transferred to the construction site, in this process, the crane is the main moving tool, the lifting rope of the crane passes through the lower part of the precast beam, and a lifting point notch needs to be reserved on the pedestal according to the lifting point position of the precast beam. Therefore, different lengths of pedestal monomers are combined and spliced, so that the lifting point is located at the connection between the adjacent pedestal monomers, and the lifting point splicing structure 5 is arranged at the connection.

[0045] As shown in FIG. 6, the lifting point splicing structure 5 is arranged between the adjacent pedestal monomers, in other words, the lifting point splicing structure 5 is arranged at one end of the pedestal monomer, and the end is used to connect with the end of the adjacent another pedestal monomer without the lifting point splicing structure 5, the lifting point splicing structure 5 comprises a cuboid sliding strip 51, the length of the sliding strip 51 is consistent with the width of the steel panel 3, the thickness of the sliding strip 51 is consistent with the thickness of the steel panel 3, the two ends of the sliding strip 51 are provided with the second compression sealing structure 8, the second compression sealing structure 8 is the same as the first compression sealing structure 4 in structure, only the size is different, the second limiting sliding groove 52 is opened on the side surface of the steel panel 3 and the side surface of the channel steel 41 in the first compression sealing structure 4 located on both sides of the steel panel 3, the second limiting sliding block 53 is welded on the side surface of the sliding strip 51 and the side surface of the channel steel in the second compression sealing structure 8 located at both ends of the sliding strip 51, the second limiting sliding block 53 is adapted to the second limiting sliding groove 52, the compression sealing structure 4 at this place is not integrated with the above-mentioned compression sealing structure 4, but can slide with the sliding strip 51.

[0046] In the embodiment, before the precast beam is lifted, the sliding strip 51 and the compression sealing structure 4 at both ends thereof are slid out from between the adjacent pedestal monomers, so that a long strip-shaped gap appears between the adjacent pedestal monomers, and then a gap appears at the lifting point of the precast beam, the lifting rope passes through the gap and lifts the precast beam. Through the arrangement of the lifting point splicing structure 5, the lifting point gap can be easily formed without affecting the continuity and integrity of the pedestal, which is convenient for subsequent lifting.

[0047] The purpose of applying the prestress to the precast beam component is to offset part or all of the tensile stress generated in the concrete by the prestress to offset part or all of the tensile stress generated in the concrete by the use load, so that the precast beam component will inevitably generate a certain camber after the prestress is applied, which is also a common feature of the prestressed concrete component. The precast beams with different camber values will present uneven upper and lower surfaces after installation, when the camber value is too large, the pavement thickness of the bridge surface cannot be ensured, so the route longitudinal section must be adjusted, if the camber value is too small, the corresponding pavement thickness will be increased, which not only increases the amount of bridge pavement, but also increases the self weight of the bridge, thereby causing a large safety hazard, and changing the design will also increase the construction cost.

[0048] Therefore, the precast beam needs to be adjusted to offset the camber value generated in the tension process. In the current construction, different thickness steel plate pads are pre-set under the bottom mold plate, the bottom mold plate is adjusted to a certain camber, the camber is the same as the pre-camber of the precast beam in size and opposite in direction, after several times of prestress tension on the beam body, the camber of the bottom mold plate offsets the upward camber of the bridge, thereby achieving the effect of camber adjustment.

[0049] However, the steel cushion plate is arranged in the form of a cushion, on the one hand, different thicknesses of steel cushion plates need to be combined and matched, which cannot meet the accuracy, on the other hand, the bottom formwork is arched, the contact between the bottom formwork and the lower steel cushion plate is generally linear contact, the contact area is small, and due to stress concentration, the bottom formwork on both sides of the contact part is deformed, which finally affects the pouring and forming effect of the prefabricated beam.

[0050] As shown in FIGS. 1 and 2, based on this, the disturbance adjustment structure 6 is additionally arranged on the basis of the pedestal monomer, as shown in FIG. 7, the disturbance adjustment structure 6 further includes two first lifting assemblies, the two first lifting assemblies are respectively connected with the lifting bodies 61 arranged at both ends of the pedestal monomer, the first lifting assembly includes a first threaded support 62 and a first threaded sleeve 63, the first threaded support 62 is arranged directly below the lifting body 61, one end of the first threaded sleeve 63 is rotationally connected to the lower surface of the lifting body 61, and the other end of the first threaded sleeve 63 is threadedly connected with the first threaded support 62.

[0051] The disturbance adjustment structure 6 further includes two second lifting assemblies, the two second lifting assemblies are respectively connected with the two lifting bodies 61 arranged at the intermediate position of the pedestal monomer, the second lifting assembly includes two extension rods 67, two second threaded supports 68 and two second threaded sleeves 69, one end of each of the two extension rods 67 is connected to the two side surfaces of the lower part of the lifting body 61, the other end of each of the two extension rods 67 passes through the two steel support members 1 and is rotationally connected to the top end of the corresponding second threaded sleeve 69, and the bottom end of each of the two second threaded sleeves 69 is threadedly connected with the corresponding second threaded support 68. By adjusting the height of the lifting body 61 at the two sides and the intermediate position, the reverse arch adjustment can be realized, and compared with the cushion steel cushion plate, the height can be more accurately adjusted to achieve the reverse arch value.

[0052] In order to increase the contact area between the lifting body 61 and the bottom formwork, a limiting groove 611 is formed on the top surface of the lifting body 61, a plurality of partition plates 64 are uniformly arranged in the limiting groove 611 along the width direction, thereby separating the limiting groove 611 into a plurality of independent spaces, for example, two partition plates 64 form three independent spaces, and a lifting strip 65 is arranged in each independent space, the periphery of the lifting strip 65 is bonded with sealing rubber, thereby realizing the sliding sealing connection between the lifting strip 65 and the independent space. The lifting strip 65 and the limiting groove 611 are spaced apart to form a water storage space, a plurality of springs 66 are uniformly arranged in the water storage space along the length direction of the limiting groove 611, and the lifting strip 65 and the bottom surface of the limiting groove 611 are elastically connected through the springs 66. The top surface of the lifting strip 65 is provided with a water passage hole 651 penetrating the lifting strip 65 along the height direction, the water passage hole 651 is connected with the water storage space at the bottom of the lifting strip 65, and a plugging bolt 652 is threadedly connected in the water passage hole 651.

[0053] When in use, water is injected from the water injection hole 651, and when the lifting bar 65 rises to a preset inverted arch height value, the water injection hole 651 is closed by the blocking bolt 652. Since the compression modulus of the water body is extremely small and can be ignored in the normal state, the load of the upper precast beam is borne by the water body. After the precast beam is maintained, the water injection hole 651 is opened, and the lifting bar 65 is lowered under the rebounding action of the spring 66 and the gravity of the lifting bar 65, and the water in the water storage space is discharged through the water injection hole 651. In this process, the lifting bar 65 in the three independent spaces can be adaptively adjusted according to the inverted arch curvature, that is, the original single-line contact is increased to three-line contact, the contact area is increased, and deformation of the bottom formwork on both sides of the contact part caused by stress concentration is prevented.

[0054] Although the present application has been disclosed as above, the protection scope of the present application is not limited to this. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present application, and these changes and modifications shall fall within the protection scope of the present application.

Claims

1. A modular plinth, characterised in that, The application relates to a pedestal monomer, which comprises two profile steel support pieces (1), a plurality of distribution beams (2), a steel panel (3) and a limiting structure (7), wherein the two profile steel support pieces (1) are arranged in parallel at intervals, the plurality of distribution beams (2) are arranged across the top of the two profile steel support pieces (1), the lower surface and the upper surface of the distribution beam (2) are respectively in abutment with the upper surface of the two profile steel support pieces (1) and the lower surface of the steel panel (3), and the limiting structure (7) is arranged between the upper surface of the two profile steel support pieces (1) and the lower surface of the steel panel (3) and is used for limiting the displacement of the distribution beam (2) and the steel panel (3) in the extension direction of the pedestal monomer.

2. The modular plinth of claim 1, wherein, The limiting structure (7) is provided with a plurality of limiting blocks (13), the limiting blocks (13) are respectively connected to the upper surface of the two profile steel support pieces (1) and the lower surface of the steel panel (3), and the upper surface and the lower surface of the distribution beam (2) are respectively in abutment between adjacent limiting blocks (13).

3. The modular pedestal of claim 1, wherein, The pedestal monomer further comprises a first compression sealing structure (4) arranged on the two parallel sides of the steel panel (3) and the two profile steel support pieces (1), the first compression sealing structure (4) comprises a channel steel (41), a sealing block (42) and an elastic connecting piece (43), the channel steel (41) is connected to the side of the steel panel (3), the opening surface of the channel steel (41) is flush with the outer side surface of the corresponding profile steel support piece (1), the sealing block (42) is slidingly arranged in the groove of the channel steel (41), and the two ends of the elastic connecting piece (43) are respectively connected to the inner side surface of the sealing block (42) and the groove bottom of the channel steel (41), so that the sealing block (42) at least partially extends out of the opening surface of the channel steel (41).

4. The modular plinth of claim 3, wherein, The first compression sealing structure (4) further comprises a water storage strip (45) and a flexible water permeable body (46), the outer side surface of the sealing block (42) is provided with a containing groove (44), the flexible water permeable body (46) is slidingly arranged in the containing groove (44), the outer side surface of the flexible water permeable body (46) at least partially extends out of the containing groove (44), the water storage strip (45) is arranged between the inner side surface of the flexible water permeable body (46) and the groove bottom of the containing groove (44), and the side surface, at which the water storage strip (45) and the flexible water permeable body (46) are in abutment, is provided with a water permeable hole.

5. The modular plinth of claim 4, wherein, The pedestal monomer further comprises a lifting point splicing structure (5) and a second compression sealing structure (8) arranged between adjacent pedestal monomers, the lifting point splicing structure (5) comprises a sliding strip (51), the two ends of the sliding strip (51) are respectively connected with one second compression sealing structure (8), and the sliding strip (51) and the second compression sealing structure (8) are slidingly arranged between the steel panels (3) of adjacent pedestal monomers.

6. The modular pedestal of claim 1, wherein, The pedestal monomer further comprises a pitch adjusting structure (6) arranged between the two profile steel support pieces (1), the pitch adjusting structure (6) comprises a plurality of lifting bodies (61) arranged at both ends and the middle position of the pedestal monomer, the lifting body (61) is arranged in an H-shaped structure horizontally, the upper surface of the upper beam of the lifting body (61) penetrates through the steel panel (3), when the pitch adjusting structure (6) is in a non-working state, the upper surface of the upper beam is flush with the upper surface of the steel panel (3), and the bottom surface of the two ends of the upper beam abuts against the upper surface of the profile steel support piece (1).

7. The modular plinth of claim 6, wherein, The pitch adjusting structure (6) further comprises two first lifting assemblies, the two first lifting assemblies are respectively connected with the lifting bodies (61) arranged at both ends of the pedestal monomer, the first lifting assembly comprises a first threaded support (62) and a first threaded sleeve (63), the first threaded support (62) is arranged directly below the lifting body (61), one end of the first threaded sleeve (63) is rotationally connected to the lower surface of the lifting body (61), and the other end of the first threaded sleeve (63) is threadedly connected with the first threaded support (62).

8. The modular plinth of claim 6, wherein, The pitch adjusting structure (6) further comprises two second lifting assemblies, the two second lifting assemblies are respectively connected with the two lifting bodies (61) arranged at the middle position of the pedestal monomer, the second lifting assembly comprises two extension rods (67), two second threaded supports (68) and two second threaded sleeves (69), one end of each of the two extension rods (67) is connected to the two side surfaces of the lower part of the lifting body (61), the other end of each of the two extension rods (67) penetrates through the two profile steel support pieces (1) and is rotationally connected with the top end of the corresponding second threaded sleeve (69), and the bottom end of each of the two second threaded sleeves (69) is threadedly connected with the corresponding second threaded support (68).

9. The modular pedestal of claim 6, wherein, The pitch adjusting structure (6) further comprises a partition plate (64), a lifting strip (65) and a spring (66), the upper surface of the lifting body (61) is provided with a limiting groove (611), a plurality of partition plates (64) are connected in the limiting groove (611) to divide the limiting groove (611) into a plurality of independent spaces, each independent space is slidably connected with the lifting strip (65), a water storage space is arranged between the bottom surface of the lifting strip (65) and the groove bottom of the limiting groove (611), the spring (66) is arranged in the water storage space, and the two ends of the spring (66) abut against the bottom surface of the lifting strip (65) and the groove bottom of the limiting groove (611) respectively, a water passing hole (651) penetrating through the water storage space is arranged in the lifting strip (65) in the vertical direction, and a plugging bolt (652) for plugging the water passing hole (651) is connected to the upper surface of the lifting strip (65).

10. A method of assembling a pedestal based on the assembled pedestal according to any one of claims 1 to 9, characterized in that, Comprise: S1: Assembling the pedestal monomer, first, two profile steel support pieces (1) are placed in parallel and at intervals, then the distribution beam (2) is installed on the two profile steel support pieces (1), and then the steel panel (3) is installed on the distribution beam (2); S2: Assembling the pedestal, taking the pedestal monomer assembled in the S1 step as the starting point, the assembly of the remaining pedestal monomers is simultaneously carried out from both ends thereof.

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