Supporting device and supporting system for large-span cant beam

Abstract

The invention discloses a supporting device and a supporting system for a large-span cant beam. The supporting device comprises a base, a jacking and an elastic piece, the top support is rotationally arranged on the base and used for enabling the top support to form an inclined supporting face, a first limiting plate and a second limiting plate are arranged at the high end and the low end of the supporting face respectively, and a supporting groove used for containing a beam bottom small beam is formed between the first limiting plate and the second limiting plate. The elastic piece is movably arranged on the second limiting plate and is arranged in a deformable mode in the thickness direction of the second limiting plate, and the elastic piece has an extending state and a contracting state in the moving stroke of the elastic piece; when the elastic piece is in the stretching state, the beam bottom small beam can enable the elastic piece to deform under the action of external force. The problems of sideslip and local stress concentration of the oblique beam in the prior art are solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of stand inclined beam construction, in particular to a support device and support system for large-span inclined beam. BACKGROUND

[0002] In the construction of large sports venues, large-span stand inclined beam is a very representative structure, and the inclination angle is usually between 20° and 40°. In the traditional inclined beam construction process, the full-frame scaffold is used, but it lacks a mechanism specially adapted to the inclination angle of the inclined beam, so that the inclined beam will generate a horizontal component force (up to 30%-50% of the vertical load) due to its own weight. Under the action of this horizontal component force, the frame body is easy to move sideways, which brings hidden dangers to the safety and stability of the construction.

[0003] Therefore, the frame body is rigidly connected with the inclined beam, but during the concrete pouring and vibrating process, the inclined beam will produce a small inclination deformation of ±5°. Even a slight change will still generate a horizontal component force. This horizontal component force will still push the beam to produce a small displacement along the inclined surface, and under the continuous action, the frame body is easy to appear local stress concentration phenomenon. At the same time, the rigid connection method also has many inconveniences in the process of assembly and disassembly, which increases the difficulty and cost of construction. SUMMARY

[0004] In view of the deficiencies in the prior art, the purpose of the present application is to provide a support device and support system for large-span inclined beam to solve the problems of side sliding and local stress concentration of the inclined beam in the prior art.

[0005] To achieve the above-mentioned purpose, the present application adopts the following technical solutions:

[0006] The support device for large-span inclined beam is used for supporting the inclined beam, and the inclined beam has a beam bottom small beam. The support device comprises:

[0007] a base;

[0008] a top support rotatably arranged on the base to form an inclined support surface, a first limiting plate and a second limiting plate are respectively arranged at the high end and the low end of the support surface, and a support groove for accommodating the beam bottom small beam is formed between the first limiting plate and the second limiting plate;

[0009] an elastic member movably arranged on the second limiting plate and deformed in the thickness direction, the elastic member has an extension state and a contraction state in the movement stroke;

[0010] in the extension state, the elastic member moves away from the second limiting plate to compensate for the gap between the beam bottom small beam and the second limiting plate;

[0011] In the contraction state, the elastic member moves towards the second limiting plate;

[0012] When the elastic member is in the extension state, the beam bottom small beam can deform the elastic member under external force.

[0013] Further, the support device further comprises a sliding block, which is slidable relative to the second limiting plate and connected to the elastic member, so as to switch the elastic member between the extension state and the contraction state.

[0014] Further, the top support is provided with a guide rod, and the sliding block is slidably arranged on the guide rod.

[0015] Further, the guide rod is externally provided with a spring, the end of the spring is connected to the sliding block, and the spring can elastically deform when the sliding block is driven.

[0016] Further, the second limiting block is provided with a mounting groove, and the elastic member is arranged in the mounting groove.

[0017] Further, the opposite ends of the elastic member are each provided with a mounting ear, and the mounting ear is fixed in the mounting groove.

[0018] Further, the first limiting plate is screw-threadedly provided with a plurality of threaded rods, the threaded rods can extend into the support groove, and the threaded rods are provided with stop blocks.

[0019] Further, one end of the base is provided with a hinge for connecting the top support, and the other end of the base is provided with a hydraulic cylinder for driving the top support to rotate.

[0020] Further, the elastic member is a rubber strip.

[0021] The support system comprises a socket disk buckle frame and the support device, and the socket disk buckle frame is arranged on the base.

[0022] Compared with the prior art, the present application has the following beneficial effects: the top support is rotatably arranged on the base, so that an inclined support surface is formed, thereby flexibly adapting to the inclination angle of the inclined beam, not only reducing the influence of the horizontal component force on the stability of the support device, but also making the assembly and disassembly operation more flexible and efficient, reducing the construction period and labor cost; at the same time, the support groove is formed by the first limiting plate, the second limiting plate and the support surface, which can constrain the beam bottom small beam, and the elastic member can compensate the gap and buffer the horizontal component force impact, reducing the possibility of beam body side slipping and improving the safety of the construction process; in addition, the elastic member can absorb part of the external force through deformation, avoiding direct rigid transmission of force, effectively relieving the stress concentration problem, thereby protecting the structural integrity of the beam body and the support frame. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 This is a schematic diagram of the structure of a support device according to an embodiment of the present invention;

[0024] Figure 2 for Figure 1 A magnified view of a section at point A in the middle;

[0025] Figure 3 This is a schematic diagram of the structure of the elastic element and the slider according to an embodiment of the present invention;

[0026] Figure 4 This is a schematic diagram of the structure of the second limiting plate according to an embodiment of the present invention;

[0027] Figure 5 This is a schematic diagram of the structure of the first limiting plate according to an embodiment of the present invention.

[0028] The reference numerals in the accompanying drawings include:

[0029] 1. Base; 2. Top support; 201. Support surface; 202. Support groove; 3. First limiting plate; 4. Second limiting plate; 401. Mounting groove; 5. Elastic element; 501. Mounting ear; 6. Slider; 7. Guide rod; 8. Spring; 9. Threaded rod; 10. Stop block; 11. Hydraulic cylinder; 12. Socket plate fastener. Detailed Implementation

[0030] The present invention will be further described in detail below through specific embodiments:

[0031] In embodiments of the present invention, such as Figure 1 , Figure 2 As shown, the support device for the large-span inclined beam includes: a base 1, a top support 2, and an elastic element 5; the top support 2 is rotatably mounted on the base 1 to form an inclined support surface 201. A first limiting plate 3 and a second limiting plate 4 are respectively provided at the high and low ends of the support surface 201, and a support groove 202 for accommodating the small beam at the bottom of the beam is formed between the first limiting plate 3 and the second limiting plate 4; the elastic element 5 is movably mounted on the second limiting plate 4 and is deformable in its thickness direction. The elastic element 5 has an extended state and a contracted state in its active stroke; in the extended state, the elastic element 5 moves away from the second limiting plate 4 to compensate for the gap between the small beam at the bottom of the beam and the second limiting plate 4; in the contracted state, the elastic element 5 moves towards the second limiting plate 4.

[0032] When the elastic element 5 is in an extended state, the small beam at the bottom of the beam can deform the elastic element 5 under the action of external force.

[0033] Specifically, in the embodiment of the present application, the bottom of the inclined beam is provided with a beam bottom small beam, and since the inclination angle of the beam bottom small beam is equal to that of the inclined beam, the inclined beam can be supported and limited by supporting and constraining the beam bottom small beam. Specifically, the present support device comprises a base 1 and a top support 2, the base 1 is the support foundation of the support device, and the top support 2 is rotatably arranged thereon, so that the top support 2 can rotate relative to the base 1 under the action of external force, which not only can flexibly adapt to the inclination angle of the beam bottom small beam, but also can facilitate disassembly. In this way, the end face of the top support 2 for supporting the beam bottom small beam is defined as an inclined support surface 201. Since the inclined beam will generate a horizontal component force, a first limiting plate 3 and a second limiting plate 4 are arranged at the high and low ends of the support surface 201 respectively, so that the first limiting plate 3 and the second limiting plate 4 can form a support groove 202 together with the above-mentioned support surface 201 after being oppositely arranged, which can constrain the beam bottom small beam, thereby reducing the influence of the horizontal component force on the stability of the support device.

[0034] In the embodiment of the present application, another horizontal component force generated by the inclined beam during the concrete pouring and vibrating process will cause the risk of side sliding of the inclined beam. Therefore, an elastic member 5 is movably arranged at one end of the second limiting plate 4 close to the support groove 202, so that the elastic member 5 can move relative to the second limiting plate 4 under the action of external force to form an extended state and a contracted state. When the elastic member 5 is in the extended state, it moves away from the second limiting plate 4 (i.e., gradually extends into the support groove 202), so that it can compensate for the gap between the beam bottom small beam and the second limiting plate 4, thereby increasing the friction between them by means of face-to-face contact and reducing the risk of side sliding. Conversely, when the elastic member 5 is in the contracted state, it moves towards the second limiting plate 4, so that the gap between the beam bottom small beam and the second limiting plate 4 is exposed, thereby facilitating the disassembly of the present support device (which needs to be carried out after the concrete solidifies).

[0035] On the other hand, the above-mentioned horizontal component force will also cause stress concentration problems in the entire support device, and therefore the elastic member 5 can be deformed in its thickness direction. That is, when the elastic member 5 is in the extended state, the beam bottom small beam can cause the elastic member 5 to deform under the action of external force, and the deformation can absorb part of the external force, avoiding direct rigid transmission of force, and effectively alleviating the problem of stress concentration.

[0036] The first limiting plate 3 and the second limiting plate 4 are arranged on the supporting surface 201 of the top support 2, so that a supporting groove 202 is formed, the beam bottom beam and the inclined beam are constrained by the two limiting plates, and the stability of the whole supporting device is improved; meanwhile, the supporting groove 202 can rotate relative to the base 1, so that the inclination angle of the beam bottom beam can be flexibly adapted. In addition, the elastic member 5 is arranged between the second limiting plate 4 and the beam bottom beam, which not only plays a role of anti-skid, but also realizes the purpose of dynamic adjustment through the flexible contact between the beam bottom beam and the elastic member 5, so as to prevent the problem of stress concentration of the supporting device, and the overall stability of the supporting device can be ensured.

[0037] As shown in Figure 2 , Figure 3 In an embodiment, the supporting device further comprises a sliding block 6, the sliding block 6 is slidable relative to the second limiting plate 4 and is connected to the elastic member 5, so as to switch the elastic member 5 between the stretched state and the contracted state. Specifically, in order to switch the elastic member 5 between the stretched state and the contracted state, a sliding block 6 is arranged on the second limiting plate 4 in this embodiment, the sliding block 6 is connected to the elastic member 5, and under the action of external force, the elastic member 5 can be switched between the two states through the sliding block 6. In this embodiment, the sliding block 6 can be driven by hydraulic pressure or manually, which is not limited here.

[0038] Further, as shown in Figure 2 In an embodiment, the top support 2 is provided with a guide rod 7, and the sliding block 6 is slidably arranged on the guide rod 7. The length direction of the guide rod 7 is consistent with the sliding direction of the sliding block 6, so as to guide the sliding block 6. Of course, the guide rod 7 can be arranged on the opposite end surface of the second top support 2, and the sliding block 6 is slidably connected to the guide rod 7, so as to improve the stability of the sliding block 6.

[0039] Further, as shown in Figure 2 In an embodiment, the guide rod 7 is externally provided with a spring 8, the end of the spring 8 is connected to the sliding block 6, and the spring 8 can be elastically deformed when the sliding block 6 is driven. Specifically, when the elastic block is switched from the stretched state to the contracted state, the stretched spring 8 can pull the sliding block 6 to move towards the second limiting plate 4, so as to accelerate the reset of the elastic member 5 and the sliding block 6.

[0040] As shown in Figure 4 In an embodiment, the second limiting block is provided with a mounting groove 401, and the elastic member 5 is arranged in the mounting groove 401. Specifically, in the contracted state, in order to hide the elastic member 5 in the second limiting block, a mounting groove 401 is arranged on the second limiting block in this embodiment, the mounting groove 401 can accommodate the elastic member 5, so that the elastic member 5 can be inserted or extracted relative to the mounting groove 401.

[0041] As Figures 2-4 shown, in an embodiment, the opposite ends of the elastic member 5 are provided with mounting ears 501, which are fixed in the mounting groove 401. Specifically, on the one hand, the effective connection between the elastic member 5 and the sliding block 6 needs to be ensured, and on the other hand, the elastic member 5 needs to be installed in the mounting groove 401; for this purpose, the mounting ears 501 are provided at the two ends of the elastic member 5 in the embodiment, one end of the mounting ear 501 is fixed in the mounting groove 401, and the other end is telescopically connected with the elastic member 5, so that when the sliding block 6 is driven, only the elastic member 5 can be moved, and the mounting ear 501 remains stationary. Of course, as Figure 3 shown, a pleated telescopic structure can be provided between the elastic member 5 and the mounting ear 501, which can be easily telescopic and reduce the space occupation.

[0042] As Figure 5 shown, in an embodiment, the first limiting plate 3 is threadedly provided with a plurality of threaded rods 9, which can extend into the support groove 202 and are provided with a stop block 10. Specifically, in order to adapt to beams of different sizes, the threaded rods 9 are provided on the first limiting plate 3 in the embodiment, and the length of the threaded rods 9 extending into the support groove 202 is changed by reversing the threaded rods 9, so that the size of the support groove 202 can be changed. During installation, the movable elastic member 5 needs to be adjusted to avoid too small or too large clamping force so that the elastic member 5 cannot be in dynamic flexible contact. Furthermore, the stop block 10 is provided at the threaded rod 9, which can increase the contact area between the threaded rod 9 and the beam bottom small beam.

[0043] As Figure 1 shown, in an embodiment, one end of the base 1 is provided with a hinge for connecting the top support 2, and the other end is provided with a hydraulic cylinder 11 for driving the top support 2 to rotate.

[0044] The elastic member 5 is a rubber strip. The surface of the rubber strip has anti-skid lines, and its own friction coefficient is large, which can improve the anti-skid ability of the beam bottom small beam; furthermore, the rubber strip is durable and can absorb vibration energy through elastic deformation. When the rubber strip contracts, the gap formed between the rubber strip and the beam bottom small beam can greatly reduce the friction when the formwork is removed, avoiding damage such as corner defects and peeling on the concrete surface. Of course, the rubber strip can also be separately detached and replaced, with low maintenance cost.

[0045] As Figure 1As shown, the embodiment also provides a support system, comprising: the socket disc buckle frame 12 and the support device described above, the socket disc buckle frame 12 is arranged on the base 1, and the erection of the support system can be completed by installing the conventional socket type disc buckle type formwork support frame. The construction period is long, the erection of the support system is difficult, the stability is poor, the cost investment is high, the formwork support system erection and pouring construction work of the large-span stand inclined beam can be quickly and simply completed. The specific structure of the support device refers to the above embodiment. Since the support system adopts all the technical solutions of the above embodiment, it at least has all the beneficial effects brought by the technical solutions of the above embodiment, which will not be repeated here.

[0046] Finally, it should be pointed out that the above embodiments are only used to illustrate the technical solutions of the present application and are not limiting. Although the present application has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present application can be modified or replaced equivalently without departing from the purpose and scope of the present application, which should be covered in the scope of the claims of the present application.

Claims

1. A support device for a large-span diagonal beam for supporting a diagonal beam having a beam bottom joist, characterized by, The support device comprises: a base; a top support rotatably arranged on the base to form an inclined support surface, a first limiting plate and a second limiting plate being arranged at the high and low ends of the support surface respectively, and a support groove for accommodating a beam bottom rib being arranged between the first limiting plate and the second limiting plate; a resilient member movably arranged on the second limiting plate and being deformable in the thickness direction thereof, the resilient member having an extended state and a contracted state in the movement stroke thereof; in the extended state, the resilient member moves away from the second limiting plate to compensate for the gap between the beam bottom rib and the second limiting plate; in the contracted state, the resilient member moves towards the second limiting plate; when the resilient member is in the extended state, the beam bottom rib can deform the resilient member under the action of an external force.

2. The support arrangement for large span diagonal beams according to claim 1, characterized in that, The support device further comprises a sliding block which is slidable relative to the second limiting plate and is connected to the resilient member to switch the resilient member between the extended state and the contracted state.

3. The support arrangement for large span diagonal beams according to claim 2, characterized in that, The top support is provided with a guide rod, and the sliding block is slidably arranged on the guide rod.

4. The support arrangement for large span diagonal beams according to claim 3, characterized in that, The guide rod is externally provided with a spring, the end of the spring being connected to the sliding block and being elastically deformable when the sliding block is driven.

5. A support arrangement for a large span diagonal beam as claimed in any one of claims 1 to 4, wherein, The second limiting block is provided with a mounting groove, and the resilient member is arranged in the mounting groove.

6. The support arrangement for a large span diagonal beam as claimed in claim 5, characterised in that, The opposite ends of the resilient member are each provided with a mounting lug which is fixed in the mounting groove.

7. The support apparatus for large span diagonal beams according to claim 1, wherein The first limiting plate is screw-threadedly provided with a plurality of threaded rods which can extend into the support groove and are provided with stop blocks.

8. The support apparatus for large span diagonal beams according to claim 1, wherein One end of the base is provided with a hinge for connecting the top support, and the other end of the base is provided with a hydraulic cylinder for driving the top support to rotate.

9. The support apparatus for large span diagonal beams according to claim 1, wherein The resilient member is a rubber strip.

10. Support system, characterized in that It comprises: a socket disc buckle frame and the support device according to any one of claims 1-9, the socket disc buckle frame being arranged on the base.

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