Precast beam support plate adjusting steel structure bottom die

Abstract

The utility model discloses a precast beam support plate adjusting steel structure bottom die, which belongs to the field of precast beam construction and comprises standard bottom dies, two standard bottom dies are symmetrically distributed on the left side and the right side of a bottom die longitudinal beam and fixedly connected with the bottom die longitudinal beam, a lower-layer adjusting seat is arranged between the two standard bottom dies, and the lower-layer adjusting seat is fixedly connected with the bottom die longitudinal beam. An upper layer movable block is arranged on the lower layer adjusting seat and comprises wedge-shaped limiting blocks, a beam body support base plate and a position adjusting movable block, the two wedge-shaped limiting blocks are arranged in a bilateral symmetry mode, the two ends of the beam body support base plate are in lap joint with the two wedge-shaped limiting blocks respectively, and the left wedge-shaped limiting block makes contact with a left side bottom die longitudinal beam. A position adjusting movable block is arranged between the right wedge-shaped limiting block and the right bottom die longitudinal beam. The four bolts, corresponding to the beam body support base plate, on the leveling bottom plate are rotated, so that the plate surface of the beam body support base plate shows longitudinal slope and cross slope data, and the problems of pain points and difficulty in beam body support steel plate construction are solved.

Description

Technical Field

[0001] The utility model relates to the field of precast beam construction, and particularly to an adjustable steel structure bottom formwork for the bearing plate of a precast beam. Background Technique

[0002] At present, the forming construction of precast beams, as a mature construction technology, is widely used in the fields of long-span bridges and building construction, and has formed a stable structural form. With the continuous development of social technology and technical discussions, people's requirements for the durability and safety of the design structure of beam bodies are constantly increasing. In the existing beam bodies, the bearing position is that the bottom concrete surface of the beam directly contacts the rubber bearing, or there is a bearing steel plate designed, but the bearing steel plate is flush with the bottom concrete surface of the beam body. When the beam is erected, if there are longitudinal and transverse slopes in the line, there will be gaps between the bearing steel plate and the rubber bearing, which has certain potential safety hazards. Therefore, the current beam body bearing plates are required to set longitudinal and transverse slope parameters corresponding to the line to ensure that the bearing steel plate is in close contact with the rubber bearing without gaps, and at the same time ensure that the position of the beam body bearing steel plate meets the design requirements. Therefore, if the ordinary concrete pedestal and steel pedestal do not have a beam body bearing steel plate adjusting device, they cannot meet the design and construction requirements. Summary of the Invention

[0003] In order to solve the above technical problems, the utility model provides an adjustable steel structure bottom formwork for the bearing plate of a precast beam, which has the advantages of simple structure, convenient operation, good safety and strong practicability.

[0004] The technical solution of the utility model to solve the above technical problems is: an adjustable steel structure bottom formwork for the bearing plate of a precast beam, which includes a standard bottom formwork, an upper layer movable block, a lower layer adjusting seat, and a bottom formwork longitudinal beam. Two standard bottom formworks are symmetrically distributed on the left and right sides of the bottom formwork longitudinal beam. The standard bottom formwork is fixedly connected to the bottom formwork longitudinal beam. A lower layer adjusting seat is arranged between the two standard bottom formworks. The lower layer adjusting seat is fixedly connected to the bottom formwork longitudinal beam. An upper layer movable block is arranged on the lower layer adjusting seat. The upper layer movable block includes a wedge-shaped limiting block, a beam body bearing plate, and an adjusting movable block. The two wedge-shaped limiting blocks are symmetrically arranged on the left and right. The beam body bearing plate is located between the two wedge-shaped limiting blocks, and both ends of the beam body bearing plate are respectively lapped on the two wedge-shaped limiting blocks. The left wedge-shaped limiting block is in contact with the left bottom formwork longitudinal beam, and an adjusting movable block is arranged between the right wedge-shaped limiting block and the right bottom formwork longitudinal beam. The lower layer adjusting seat includes a leveling bottom plate. Both ends of the leveling bottom plate are respectively welded and fixed to the ends of the left and right standard bottom formworks. Double rows of holes are regularly arranged on the leveling bottom plate, and a nut is welded and fixed to each corresponding hole. A bolt is configured on each nut, and the bolt is adjusted to different heights through the nut.

[0005] The above-mentioned adjusting steel structure bottom formwork for the precast beam bearing plate, the lower adjusting seat further includes U-shaped ribbed bars and distribution beams. A number of distribution beams are arranged below the leveling bottom plate. The distribution beams are longitudinally distributed between the leveling bottom plate and the bottom formwork longitudinal beams. All the distribution beams are parallel to each other. The upper part of the distribution beam is welded and fixed to the leveling bottom plate, and the lower part of the distribution beam is fixedly connected to the bottom formwork longitudinal beam.

[0006] The above-mentioned adjusting steel structure bottom formwork for the precast beam bearing plate, the distribution beam is a rectangular pipe, and sealing plates are arranged at both ends of the distribution beam. The sealing plates are welded and fixed to the distribution beam.

[0007] The above-mentioned adjusting steel structure bottom formwork for the precast beam bearing plate, a U-shaped ribbed bar is arranged between two adjacent distribution beams. A U-shaped notch is arranged in the middle of the U-shaped ribbed bar. The U-shaped ribbed bar is welded and fixed between the two distribution beams, and the upper part of the U-shaped ribbed bar is welded and fixed to the leveling bottom plate.

[0008] The above-mentioned adjusting steel structure bottom formwork for the precast beam bearing plate, energy dissipation rubber blocks are arranged at the left end of the left wedge-shaped limiting block and the right end of the right wedge-shaped limiting block to prevent damage to the bearing steel plate caused by the shrinkage of the beam body during the tensioning of the beam body.

[0009] The above-mentioned adjusting steel structure bottom formwork for the precast beam bearing plate, the wedge-shaped limiting block is trapezoidal, the trapezoidal surfaces of the two wedge-shaped limiting blocks are arranged opposite to each other, and the beam body bearing plate is integrally inclined and arranged on the trapezoidal surfaces of the two wedge-shaped limiting blocks.

[0010] The above-mentioned adjusting steel structure bottom formwork for the precast beam bearing plate, the length of the position-adjusting movable block is adjustable, and the length of the position-adjusting movable block is adjusted according to the different sizes of the positions of the precast beam bearings.

[0011] The above-mentioned adjusting steel structure bottom formwork for the precast beam bearing plate, the number of the position-adjusting movable blocks is multiple, and the length dimensions of each position-adjusting movable block are different. The corresponding size of the position-adjusting movable block is replaced according to the different sizes of the positions of the precast beam bearings.

[0012] The above-mentioned adjusting steel structure bottom formwork for the precast beam bearing plate, a concave-shaped rib is arranged on the long side of the position-adjusting movable block, a limiting groove is arranged on the short side of the position-adjusting movable block, and a grout-stop tape is arranged in the limiting groove. The two ends of the grout-stop tape extend to the sides of the two standard bottom forms on both sides of the position-adjusting movable block.

[0013] The beneficial effects of the present utility model are as follows:

[0014] 1. The present utility model is used for precasting various beam types of expressways, high-speed railways, and building projects. Through the adjusting steel structure bottom formwork for the precast beam bearing plate of the present utility model, during installation, it is installed according to the requirements of the design drawing parameters. Rotate the four bolts on the leveling bottom plate corresponding to the beam body bearing plate, so that the surface of the beam body bearing plate presents longitudinal slope and cross slope data, and when it meets the design requirements, the form can be closed and concrete can be poured.

[0015] 2. The utility model has stable structure, convenient operation, good safety performance and strong practicability. Moreover, it can effectively control the longitudinal slope and transverse slope parameters of the beam bearing plate, has the function of adjusting according to different beam length parameters, effectively solves the problem that the shrinkage of the beam during tensioning damages the bearing steel plate, improves the prefabrication quality of the precast beam, and solves the pain points and difficulties in the construction of the beam bearing steel plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic structural diagram of the utility model.

[0017] Figure 2 It is Figure 1 the C-C cross-sectional view of.

[0018] Figure 3 It is Figure 1 the D-D cross-sectional view of.

[0019] Figure 4 It is Figure 1 the E-E cross-sectional view of.

[0020] Figure 5 It is Figure 1 the schematic structural diagram of the middle and lower layer adjusting seat.

[0021] Figure 6 It is Figure 5 the top view of.

[0022] Figure 7 It is Figure 6 the A-A cross-sectional view of.

[0023] Figure 8 It is Figure 6 the B-B cross-sectional view of.

[0024] Figure 9 It is Figure 1 the schematic structural diagram of the middle and upper layer movable block.

[0025] Figure 10 It is Figure 9 the top view of.

[0026] Figure 11 It is Figure 10 the F-F cross-sectional view of.

[0027] In the figure, 1 is the leveling bottom plate, 2 is the U-shaped rib, 3 is the distribution beam, 4 is the bolt, 5 is the backing plate, 6 is the energy dissipation rubber block, 7 is the wedge-shaped limit block, 8 is the beam bearing backing plate, 9 is the adjusting movable block, 10 is the grout stop tape, 11 is the concave rib, 12 is the standard bottom mold, 13 is the bottom mold longitudinal beam, 14 is the upper layer movable block, 15 is the lower layer adjusting seat, 16 is the beam body, and 17 is the concrete. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0028] The present utility model will be further described below in conjunction with the accompanying drawings and embodiments.

[0029] As Figures 1-4 shown, a precast beam bearing plate adjusting steel structure bottom formwork includes a standard bottom formwork 12, an upper layer movable block 14, a lower layer adjusting seat 15, and a bottom formwork longitudinal beam 13. Two standard bottom formworks 12 are symmetrically distributed on the left and right sides of the bottom formwork longitudinal beam 13. The standard bottom formwork 12 is fixedly connected to the bottom formwork longitudinal beam 13. A lower layer adjusting seat 15 is provided between the two standard bottom formworks 12. The lower layer adjusting seat 15 is fixedly connected to the bottom formwork longitudinal beam 13. An upper layer movable block 14 is provided on the lower layer adjusting seat 15.

[0030] As Figures 9-11 shown, the upper layer movable block 14 includes a wedge-shaped limit block 7, a beam bearing plate 8, and an adjusting movable block 9. Two wedge-shaped limit blocks 7 are symmetrically arranged on the left and right. The beam bearing plate 8 is located between the two wedge-shaped limit blocks 7, and both ends of the beam bearing plate 8 are respectively lapped on the two wedge-shaped limit blocks 7. The left wedge-shaped limit block 7 is in contact with the left bottom formwork longitudinal beam 13, and an adjusting movable block 9 is provided between the right wedge-shaped limit block 7 and the right bottom formwork longitudinal beam 13.

[0031] Energy dissipation rubber blocks 6 are provided at the left end of the left wedge-shaped limit block 7 and the right end of the right wedge-shaped limit block 7 to prevent damage to the bearing steel plate caused by the shrinkage of the beam body 16 during the tensioning of the beam body.

[0032] The wedge-shaped limit block 7 is trapezoidal, and the trapezoidal surfaces of the two wedge-shaped limit blocks 7 are arranged opposite to each other. The beam bearing plate 8 is integrally inclined and arranged on the trapezoidal surfaces of the two wedge-shaped limit blocks 7.

[0033] The length of the adjusting movable block 9 is adjustable, and the length of the adjusting movable block 9 is adjusted according to the different dimensions of the precast beam bearing position. Or in another way, for example, the number of the adjusting movable blocks 9 is multiple, and the length dimensions of each adjusting movable block 9 are different. The adjusting movable block 9 with the corresponding dimension is replaced according to the different dimensions of the precast beam bearing position.

[0034] The long side of the adjusting movable block 9 is provided with a concave rib 11, and the short side of the adjusting movable block 9 is provided with a limiting groove. A grout stop tape 10 is arranged in the limiting groove, and both ends of the grout stop tape 10 extend to the side surfaces of the two standard bottom formworks 12 on both sides of the adjusting movable block 9. The grout stop tape 10 has a fixed dimension and is embedded in the limiting groove of the adjusting movable block 9, so as to effectively stop the grout and prevent leakage when the side formwork of the beam body is closed and concrete 17 is poured; the concave rib 11 can more effectively ensure the flatness of the panel of the installed adjusting movable block 9.

[0035] As Figures 5-8As shown in the figure, the lower layer adjusting seat 15 includes a leveling bottom plate 1, a U-shaped rib 2, and a distribution beam 3. The U-shaped rib 2 facilitates the penetration of the tie rod and is integrally connected with the distribution beam 3. The distribution beam 3 is provided to ensure the flatness of the leveling bottom plate 1 and bear the vertical pressure load. The two ends of the leveling bottom plate 1 are respectively welded and fixed to the ends of the left and right standard bottom molds 12. Double-row holes are regularly arranged on the leveling bottom plate 1, and a nut is welded and fixed to each corresponding hole. A bolt 4 is configured on each nut, and the bolt 4 is adjusted to different heights through the nut.

[0036] A number of distribution beams 3 are arranged below the leveling bottom plate 1. The distribution beams 3 are longitudinally distributed between the leveling bottom plate 1 and the bottom mold longitudinal beam 13. All the distribution beams 3 are parallel to each other. The upper part of the distribution beam 3 is welded and fixed to the leveling bottom plate 1, and the lower part of the distribution beam 3 is fixedly connected to the bottom mold longitudinal beam 13.

[0037] The distribution beam 3 is a rectangular pipe, and sealing plates are arranged at both ends of the distribution beam 3. The sealing plates are welded and fixed to the distribution beam 3.

[0038] A U-shaped rib 2 is arranged between two adjacent distribution beams 3. A U-shaped notch is provided in the middle of the U-shaped rib 2. The U-shaped rib 2 is welded and fixed between the two distribution beams 3. The upper part of the U-shaped rib 2 is welded and fixed to the leveling bottom plate 1; a cushion plate 5 is provided at the bottom of the distribution beam 3, so that the bottom of the distribution beam 3 is flush with the bottom of the U-shaped rib 2.

[0039] The working principle of the present utility model is as follows: Before pouring the concrete 17 and closing the mold, the precast beam support plate adjusting steel structure bottom mold is installed according to the design requirements. The upper layer movable block 14 is located between the two standard bottom molds 12. The energy dissipation rubber block 6, the wedge-shaped limit block 7, the beam body support plate 8, the displacement adjusting movable block 9, the grout stopping tape 10, and the concave rib 11 of the upper layer movable block 14 are placed at the designed positions. Then, the four bolts 4 corresponding to the beam body support plate 8 on the leveling bottom plate 1 are rotated, so that the longitudinal slope and transverse slope data on the upper surface of the beam body support plate 8 meet the design requirements, and then the mold can be closed to pour the concrete 17. The structure of the utility model is stable, easy to operate, safe, and practical. Moreover, it can effectively control the longitudinal slope and transverse slope parameters of the beam body support plate 8, has the function of meeting the adjustment of different beam length parameters, effectively solves the problem that the shrinkage of the beam body caused by the tension of the beam body 16 damages the support steel plate, improves the precast quality of the precast beam body, and solves the pain points and difficulties in the construction of the beam body support steel plate.

Claims

1. A precast beam bearing plate adjusting steel structure bottom formwork, characterized in that: It includes a standard bottom mold, an upper movable block, a lower adjusting seat, and bottom mold longitudinal beams. Two standard bottom molds are symmetrically distributed on the left and right sides of the bottom mold longitudinal beams. The standard bottom molds are fixedly connected to the bottom mold longitudinal beams. A lower adjusting seat is provided between the two standard bottom molds, and the lower adjusting seat is fixedly connected to the bottom mold longitudinal beams. An upper movable block is provided on the lower adjusting seat. The upper movable block includes a wedge-shaped limiting block, a beam support backing plate, and an adjusting movable block. The two wedge-shaped limiting blocks are symmetrically arranged left and right. The beam support backing plate is located between the two wedge-shaped limiting blocks, and both ends of the beam support backing plate are respectively lapped on the two wedge-shaped limiting blocks. The left wedge-shaped limiting block is in contact with the left bottom mold longitudinal beam, and an adjusting movable block is provided between the right wedge-shaped limiting block and the right bottom mold longitudinal beam; The lower adjusting seat includes a leveling bottom plate. Both ends of the leveling bottom plate are respectively welded and fixed to the ends of the left and right standard bottom molds. Double rows of holes are regularly arranged on the leveling bottom plate, and a nut is welded and fixed to each corresponding hole. A bolt is configured on each nut, and the bolt is adjusted to different heights through the nut.

2. The adjustable steel bottom formwork for precast beam bearings according to claim 1, wherein: The lower adjusting seat further includes U-shaped ribbed bars and distribution beams. A number of distribution beams are provided below the leveling bottom plate. The distribution beams are longitudinally distributed between the leveling bottom plate and the bottom mold longitudinal beams. All the distribution beams are parallel to each other. The upper parts of the distribution beams are welded and fixed to the leveling bottom plate, and the lower parts of the distribution beams are fixedly connected to the bottom mold longitudinal beams.

3. The adjustable steel bottom formwork for precast beam bearings according to claim 2, characterized in that: The distribution beam is a rectangular pipe, and sealing plates are provided at both ends of the distribution beam. The sealing plates are welded and fixed to the distribution beam.

4. The precast beam bearing plate adjusting steel structure bottom form according to claim 3, characterized in that: A U-shaped ribbed bar is provided between two adjacent distribution beams. A U-shaped notch is provided in the middle of the U-shaped ribbed bar. The U-shaped ribbed bar is welded and fixed between the two distribution beams, and the upper part of the U-shaped ribbed bar is welded and fixed to the leveling bottom plate.

5. The adjustable steel bottom formwork for precast beam bearings according to claim 1, characterized in that: Energy-absorbing rubber blocks are provided at the left end of the left wedge-shaped limiting block and the right end of the right wedge-shaped limiting block to prevent damage to the bearing steel plate caused by the shrinkage of the beam body during beam tensioning.

6. The adjustable steel bottom formwork for precast beam bearings according to claim 1, characterized in that: The wedge-shaped limiting block is trapezoidal, and the trapezoidal surfaces of the two wedge-shaped limiting blocks are arranged opposite to each other. The beam support backing plate is integrally inclined and arranged on the trapezoidal surfaces of the two wedge-shaped limiting blocks.

7. The adjustable steel bottom formwork for precast beam bearings according to claim 1, characterized in that: The length of the adjusting movable block is adjustable, and the length of the adjusting movable block is adjusted according to the different sizes of the precast beam bearing positions.

8. The adjustable steel bottom formwork for precast beam bearings according to claim 1, characterized in that: The number of the adjusting movable blocks is multiple, and the length dimensions of each adjusting movable block are different. The adjusting movable block with the corresponding size is replaced according to the different sizes of the precast beam bearing positions.

9. The adjustable steel bottom formwork for precast beam bearings according to claim 1, characterized in that: The long side of the adjusting movable block is provided with concave ribs, and the short side of the adjusting movable block is provided with a limiting groove. A grout stopping tape is provided in the limiting groove, and both ends of the grout stopping tape extend to the side surfaces of the two standard bottom molds on both sides of the adjusting movable block.

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