Beam and slab support frame for both sides of the post-cast zone of basement settlement

Abstract

The utility model relates to a beam and slab support frame used for both sides of a post-casting strip of a basement settlement, comprising a screw rod, the upper and lower parts of which are respectively provided with an upper sleeve and a lower sleeve, the top end of the upper sleeve abuts against the bottom surface of the beam and slab through a support assembly, and the bottom end of the lower sleeve is fixedly connected to the basement floor; the support assembly comprises a fixed support block and two auxiliary support blocks, the fixed support block is fixed to the top end of the upper sleeve, the two auxiliary support blocks are respectively arranged on both sides of the fixed support block, and the top surface of the auxiliary support block and the top surface of the fixed support block are in the same horizontal plane. The support frame is used to provide separate support for the beam and slab positions on both sides of the post-casting strip, and when the beam and slab formwork is removed, the support frame still provides support for the beam and slab on both sides of the post-casting strip to prevent cracks or sagging of the beam and slab; adding auxiliary support blocks at both ends of the fixed support block can increase the horizontal support area of ​​the beam and slab, and further increase the firmness of the beam and slab.

Description

Technical Field

[0001] The utility model relates to the technical field of post-casting belt construction, in particular to a beam and slab support frame used for both sides of a post-casting belt of a basement settlement. Background Art

[0002] Post-settlement strips are a construction method used in building construction to prevent harmful cracks caused by uneven shrinkage or settlement of cast-in-place reinforced concrete structures. According to the design or construction specifications, post-settlement strips should be reserved at the corresponding positions of the foundation slab, wall, and beam-slab.

[0003] During the construction of basement beams and slabs, scaffolding is usually used to build beam and slab formwork frames between the beam and slab and the bottom plate to support the beam and slab formwork. However, this method has certain defects: for the convenience of erection, workers often build beam and slab formwork frames uniformly, and after the hardness of the beam and slab reaches the standard, the beam and slab formwork frames are uniformly dismantled. This method will cause the beam and slab on both sides of the post-casting strips reserved on the beam and slab to become cantilever structures, and the beam and slab at this position is very likely to crack or sag; even if the post-casting strip formwork frames are built before the post-casting strips are poured for secondary support, the force mode of the beam and slab has changed, and the secondary support only avoids further deformation. Utility Model Content

[0004] The utility model aims to solve the problem that after the basement beam and slab formwork is removed, the beams and slabs on both sides of the post-casting strip lose support and produce cracks or sag, thereby providing a support frame that independently supports the beams and slabs on both sides of the post-casting strip and is easy to adjust.

[0005] The utility model solves the above problems and adopts the following technical solutions:

[0006] A beam support frame for both sides of the post-casting zone of the basement settlement, supported between the basement floor and the beam, comprises a screw rod, the upper and lower parts of which are respectively sleeved with an upper sleeve and a lower sleeve, the top end of the upper sleeve abuts against the bottom surface of the beam through a support assembly, and the bottom end of the lower sleeve is fixedly connected to the basement floor;

[0007] The support assembly includes a fixed support block and two auxiliary support blocks. The fixed support block is fixed on the top of the upper sleeve. The two auxiliary support blocks are respectively arranged on both sides of the fixed support block. The top surface of the auxiliary support block and the top surface of the fixed support block are in the same horizontal plane.

[0008] Compared with the prior art, the utility model adopting the above technical solution has the following beneficial effects:

[0009] This support frame provides separate support for the beam and slab positions on both sides of the post-casting strip. The cooperation of the upper and lower sleeves with the screw rod makes it easy to adjust the support height. When the beam and slab formwork is removed, the support frame still provides support for the beam and slab at both sides of the post-casting strip to avoid cracks or sagging of the beam and slab on both sides of the post-casting strip. There is a clear difference between this support frame and the beam and slab formwork constructed by scaffolding, and it is not easy for workers to dismantle it by mistake. A support assembly is set at the top of the upper sleeve to support the beam and slab, and auxiliary support blocks are added at both ends of the fixed support block, which can increase the horizontal support area of ​​the beam and slab, and further increase the firmness of the beam and slab.

[0010] As a preferred embodiment, a further technical solution of the utility model is:

[0011] A radial through hole is provided in the middle of the screw rod, and a rotating rod is arranged in the through hole.

[0012] A through slot is provided in the middle of the fixed support block along its horizontal length direction, a plurality of spring holes are provided at the bottom edge of the fixed support block, telescopic blocks are respectively inserted at both ends of the through slot, a spring stopper is fixed to the bottom surface of the inner end of the telescopic block, and the spring stopper pops out from one of the spring holes; the outer end of the telescopic block is fixed to the inner side wall of the auxiliary support block. Through the above structure, the telescopic amount of the telescopic block and the fixed support block can be adjusted through the cooperation of the spring stopper and the spring hole, and the support area of ​​the auxiliary support blocks on both sides can be adjusted.

[0013] Limiting plates are fixed on the outer sides of the upper ends of the auxiliary support blocks on both sides, and the distance between the limiting plates on both sides is not less than the width of the keel under the beam plate. When a keel is set under the beam plate, the limiting plates on both sides can be clamped on both sides of the keel to make the support frame support the beam plate more stable.

[0014] Both sides of the upper sleeve and the lower ends of the two auxiliary support blocks are fixedly connected with diagonal support telescopic components. The diagonal support telescopic components can increase the stability of the auxiliary support blocks and further increase the stability of the upper end support of the support frame.

[0015] The diagonal support telescopic assembly includes a first lifting ear, a second lifting ear, a diagonal support sleeve and a diagonal support rod, wherein the first lifting ear is fixed to the bottom surface of the auxiliary support block and is hinged to the top end of the diagonal support sleeve, the diagonal support sleeve is fitted to the diagonal support rod, the bottom end of the diagonal support rod is hinged to the second lifting ear, and the second lifting ear is fixed to the side wall of the upper sleeve. Through the above structure, the stability of the auxiliary support block can be increased, and the stability of the upper end support of the support frame can be further increased.

[0016] The bottom end of the lower casing is fixedly connected with a fixing plate, the fixing plate is fixedly connected to the basement floor by bolts, and at least two reinforcing ribs are fixedly arranged between the fixing plate and the lower casing. The above structure can increase the stability of the lower casing and the fixing plate, and further increase the stability of the lower end of the support frame.

[0017] The screw rod is a positive and negative thread screw rod. Through the above structure, when the screw rod is rotated by the rotating rod, the upper sleeve and the lower sleeve can be extended and retracted based on the screw rod at the same time, which is convenient for adjusting the support height. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the utility model;

[0019] Figure 2 yes Figure 1 A partial enlarged view of middle A;

[0020] Figure 3 This is a schematic diagram of the main view of the utility model with a limit plate added;

[0021] Figure 4 yes Figure 3 A side view schematic diagram of

[0022] Figure 5 It is a construction schematic diagram using the utility model;

[0023] In the figure: 1. support assembly; 2. upper sleeve; 3. screw rod; 31. through hole; 4. lower sleeve; 5. reinforcing rib; 6. fixed plate; 7. limit plate; 8. post-cast strip; 9. beam and slab; 10. keel; 11. fixed support block; 12. through groove; 13. telescopic block; 14. auxiliary support block; 15. first lifting ear; 16. handle; 17. diagonal support sleeve; 18. diagonal support rod; 19. second lifting ear. DETAILED DESCRIPTION

[0024] The present invention is further described below in conjunction with embodiments, the purpose of which is only to provide a better understanding of the content of the present invention. Therefore, the examples given do not limit the protection scope of the present invention.

[0025] See attached Figure 1-5 The utility model embodiment discloses a beam support frame for both sides of the post-casting belt of the basement settlement, which is supported between the basement floor and the beam 9, and includes a screw rod 3, the upper and lower parts of which are respectively sleeved with an upper sleeve 2 and a lower sleeve 4, the top end of the upper sleeve 2 is abutted against the bottom surface of the beam 9 through a support assembly 1, and the bottom end of the lower sleeve 4 is fixedly connected to the basement floor;

[0026] The support assembly 1 includes a fixed support block 11 and two auxiliary support blocks 14. The fixed support block 11 is fixed to the top of the upper sleeve 2. The two auxiliary support blocks 14 are respectively arranged on both sides of the fixed support block 11. The top surface of the auxiliary support block 14 and the top surface of the fixed support block 11 are in the same horizontal plane.

[0027] A through hole 31 is provided in the middle of the screw rod 3, and a rotating rod is provided in the through hole 31. The screw rod 3 can be rotated by the rotating rod to adjust the telescopic amount of the upper sleeve 2 and the lower sleeve 4.

[0028] In this embodiment, the support frame is used to provide separate support for the beam slab 9 on both sides of the post-casting strip. The upper sleeve 2 and the lower sleeve 4 cooperate with the screw rod 3 to facilitate the adjustment of the support height. When the beam slab formwork is removed, the support frame still provides support for the beam slab 9 on both sides of the post-casting strip. When the beam slab formwork is removed, the support frame still provides support for the beam slab on both sides of the post-casting strip to avoid cracks or sagging in the beam slab 9 on both sides of the post-casting strip. There is a clear difference between the support frame and the beam slab formwork constructed by scaffolding, and it is not easy for workers to dismantle it by mistake. A support assembly 1 is set at the top of the upper sleeve 2 to support the beam slab 9, and auxiliary support blocks 14 are added at both ends of the fixed support block 11, which can increase the horizontal support area of ​​the beam slab 9 and further increase the firmness of the beam slab 9.

[0029] As an option, the upper sleeve 2 and the lower sleeve 4 are made of ordinary galvanized steel pipes of Q235, with a cross-sectional size of φ110mm*3mm and a length of 1200mm. The upper sleeve 2 and the lower sleeve 4 are fully threaded inside; the screw rod 3 is made of seamless thick-walled steel pipe of Q235, with a cross-sectional size of φ80mm*10mm and a length of 1000mm. 100mm is reserved in the middle without threading, and the rest of the position is fully covered with the screw rod 3. The maximum adjustable range of the upper sleeve 2 and the lower sleeve 4 is 800mm; the rotating rod is made of φ18mm steel bar, and a through hole 31 is opened in the middle with a position reserved for 100mm, and the diameter of the through hole 31 is set to 20mm-30mm.

[0030] In this embodiment, a through slot 12 is provided in the middle of the fixed support block 11 along its horizontal length direction. The through slot 12 passes through the left and right sides of the fixed support block 11. A plurality of spring holes are provided at the bottom edge of the fixed support block 11. The two ends of the through slot 12 are respectively plugged with telescopic blocks 13. A spring stopper is fixed to the bottom surface of the inner end of the telescopic block 13. The free end of the spring stopper pops out from one of the spring holes, thereby fixing the position of the telescopic block 13 with the fixed support block 11. The outer end of the telescopic block 13 is fixed to the inner side wall of the auxiliary support block 14. Through the above structure, the telescopic amount of the telescopic block 13 and the fixed support block 11 can be adjusted by the cooperation of the spring stopper and the spring hole, and the supporting area of ​​the auxiliary support blocks 14 on both sides can be adjusted. As another embodiment, a plurality of fixing holes are provided on the lower side of the inner end of the telescopic block 13. When the telescopic amount of the telescopic block 13 is adjusted, bolts are inserted into the corresponding spring holes and fixing holes in sequence, and the fixing of the telescopic block 13 with the fixed support block 11 can also be achieved.

[0031] In this embodiment, the upper outer sides of the auxiliary support blocks 14 on both sides are fixed with the limit plates 7, the distance between the limit plates 7 on both sides is not less than the width of the keel 10 below the beam 9, and the lower sides of the limit plates 7 are vertically fixed to the top surface of the auxiliary support blocks 14 by angle steel. This embodiment is suitable for the case where the keel 10 is fixed below the beam 9, and the limit plates 7, the fixed support blocks 11 and the auxiliary support blocks 14 form a U-shaped clamp structure, and the positions of the limit plates 7 on both sides are fixed according to the thickness of the keel 10, so that the limit plates 7 are clamped on both sides of the keel 10, so that the support frame supports the beam 9 more stably.

[0032] In this embodiment, both sides of the upper sleeve 2 and the lower ends of the two auxiliary support blocks 14 are fixed with diagonal support telescopic components, which can increase the stability of the auxiliary support blocks 14 and further increase the stability of the upper end support of the support frame. The diagonal support telescopic component includes a first lifting ear 15, a second lifting ear 19, a diagonal support sleeve 17 and a diagonal support rod 18, the first lifting ear 15 is fixed to the bottom surface of the auxiliary support block 14, the first lifting ear 15 is hinged to the top of the diagonal support sleeve 17, the diagonal support sleeve 17 and the diagonal support rod 18 are fitted, specifically, the inner diameter of the diagonal support sleeve 17 is larger than the outer diameter of the diagonal support rod 18, the diagonal support sleeve 17 is fitted on the upper part of the diagonal support rod 18, a spring block is fixed on the top side wall of the diagonal support rod 18, a plurality of holes are opened on the side wall of the diagonal support sleeve 17 along its length direction, the bottom end of the diagonal support rod 18 is hinged to the ring end of the second lifting ear 19, and the fixed end of the second lifting ear 19 is fixed to the side wall of the upper sleeve 2. When adjusting the position of the auxiliary support block 14, the telescopic amount of the diagonal support sleeve 17 and the diagonal support rod 18 is adjusted at the same time. After the position adjustment of the auxiliary support block 14 is completed, the diagonal support rod 18 is slightly pulled to make the spring block on the diagonal support rod 18 pop out from the corresponding hole, thereby fixing the length of the diagonal support telescopic assembly. Through the above structure, the stability of the auxiliary support block 14 can be increased, and the stability of the upper end support of the support frame can be further increased.

[0033] In this embodiment, handles 16 are fixed to the outer sides of the bottom ends of the two auxiliary support blocks 14, so that the auxiliary support blocks 14 can be pulled by the handles 16, making it more convenient to adjust the overall length of the support assembly 1.

[0034] In this embodiment, the bottom end of the lower casing 4 is fixedly connected with a fixing plate 6, the fixing plate 6 is fixed to the basement floor by bolts, and at least two reinforcing ribs 5 are fixed between the fixing plate 6 and the lower casing 4. Through the above structure, the stability of the lower casing 4 and the fixing plate can be increased, and the stability of the lower end of the support frame can be further increased.

[0035] In this embodiment, the screw rod 3 is a positive and negative thread screw rod 3. Through the above structure, when the screw rod 3 is rotated by the rotating rod, the upper sleeve 2 and the lower sleeve 4 can be extended and retracted based on the screw rod 3 at the same time, which is convenient for quickly adjusting the support height.

[0036] Before the support frame of this embodiment is used, it is necessary to calculate whether the bending resistance, deflection and crack verification of the beam slab 9 on both sides of the post-casting strip 8 after removing the beam slab formwork according to the blueprint of the structural beam slab 9 meets the requirements, and calculate the diameter and wall thickness of the upper sleeve 2 and the lower sleeve 4 to meet the beam bending resistance, deflection and crack force requirements, so as to determine the diameter and wall thickness of the upper sleeve 2 and the lower sleeve 4. According to the construction drawing, the net height from the basement beam slab to the bottom plate is determined, so as to pre-adjust the telescopic length of the upper sleeve 2 and the lower sleeve 4, place the support frame under the beam slab on both sides of the post-casting strip, fix the fixing plate 6 to the basement bottom plate, make the upper end of the support assembly 1 temporarily abut the bottom surface of the beam slab 9, adjust the telescopic amount of the auxiliary support block 14, so as to increase the support area of ​​the support assembly 1, and because the positions of the upper sleeve 2 and the lower sleeve 4 are relatively fixed, insert the rotating rod into the through hole 31, and rotate the screw rod 3, so that the upper sleeve 2 and the lower sleeve 4 are extended based on the screw rod 3, so that the support frame supports the beam slab 9 more firmly.

[0037] During construction through this embodiment, first set up the beam and slab formwork scaffolding, install the beam and slab formwork, and reserve the position of the post-cast strip. Support the present support frame under the beam and slab 9 on both sides of the post-cast strip 8, tie the beam and slab 9 steel bars in the beam and slab formwork, pour the beam and slab 9 concrete, and remove the beam and slab formwork and the beam and slab formwork (the bottom surface of the beam and slab formwork is not removed) after the beam and slab 9 meet the requirements for demolding, and retain the present support frame. After the construction conditions of the post-cast strip 8 are met, install the post-cast strip formwork, re-set the post-cast strip formwork under the post-cast strip formwork, and pour the post-cast strip 8. After the post-cast strip 8 meets the requirements for demolding, remove the post-cast strip formwork, the present support frame and the beam and slab 9 bottom surface formwork.

[0038] The above description is only a preferred feasible embodiment of the present utility model, and does not limit the scope of rights of the present utility model. All equivalent changes made using the contents of the present utility model specification and its drawings are included in the scope of rights of the present utility model.

Claims

1. A beam and slab support frame for both sides of a post-casting zone of a basement settlement, supported between a basement floor and a beam and slab (9), comprising a screw rod (3), characterized in that: The upper and lower parts of the screw rod (3) are respectively sleeved with an upper sleeve (2) and a lower sleeve (4); the top end of the upper sleeve (2) is in contact with the bottom surface of the beam plate (9) through the support assembly (1); and the bottom end of the lower sleeve (4) is fixedly connected to the basement floor; The support assembly (1) comprises a fixed support block (11) and two auxiliary support blocks (14); the fixed support block (11) is fixed to the top end of the upper sleeve (2); the two auxiliary support blocks (14) are respectively arranged on both sides of the fixed support block (11); and the top surface of the auxiliary support block (14) and the top surface of the fixed support block (11) are in the same horizontal plane.

2. The beam and slab support frame for both sides of the post-cast zone of basement settlement according to claim 1 is characterized in that: A through hole (31) which penetrates radially is provided in the middle of the screw rod (3), and a rotating rod is arranged in the through hole (31).

3. The beam and slab support frame for both sides of the post-cast zone of basement settlement according to claim 1 is characterized in that: A through slot (12) is provided in the middle of the fixed support block (11) along its horizontal length direction, a plurality of spring holes are provided at the bottom edge of the fixed support block (11), telescopic blocks (13) are respectively inserted at both ends of the through slot (12), a spring stop block is fixed to the bottom surface of the inner end of the telescopic block (13), and the spring stop block pops out from one of the spring holes; the outer end of the telescopic block (13) is fixed to the inner side wall of the auxiliary support block (14).

4. The beam and slab support frame for both sides of the post-cast zone of basement settlement according to claim 1 is characterized in that: Limiting plates (7) are fixed to the outer sides of the upper ends of the two auxiliary support blocks (14), and the distance between the limiting plates (7) on both sides is not less than the width of the keel (10) below the beam plate (9).

5. The beam and slab support frame for both sides of the post-cast zone of basement settlement according to claim 1 is characterized in that: Diagonal support telescopic components are fixed on both sides of the upper sleeve (2) and the lower ends of the two auxiliary support blocks (14).

6. The beam and slab support frame for both sides of the post-cast zone of basement settlement according to claim 5 is characterized in that: The diagonal support telescopic assembly comprises a first lifting ear (15), a second lifting ear (19), a diagonal support sleeve (17) and a diagonal support rod (18); the first lifting ear (15) is fixed to the bottom surface of the auxiliary support block (14) and is hinged to the top end of the diagonal support sleeve (17); the diagonal support sleeve (17) and the diagonal support rod (18) are fitted together; the bottom end of the diagonal support rod (18) is hinged to the second lifting ear (19); and the second lifting ear (19) is fixed to the side wall of the upper sleeve (2).

7. The beam and slab support frame for both sides of the post-cast zone of basement settlement according to claim 1 is characterized in that: The bottom end of the lower casing (4) is fixedly connected to a fixing plate (6), the fixing plate (6) is fixedly connected to the basement floor by bolts, and at least two reinforcing ribs (5) are fixedly arranged between the fixing plate (6) and the lower casing (4).

8. The beam and slab support frame for both sides of the post-cast zone of basement settlement according to claim 1 is characterized in that: The screw rod (3) is a positive and negative thread screw rod (3).

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