Early-dismantling formwork system suitable for laminated slab

Abstract

The utility model relates to the technical field of constructional engineering, and particularly discloses an early-dismantling formwork system suitable for a laminated slab, which comprises a plurality of groups of supporting rod pieces with the same structure and adjustable axial length, and keel components detachably mounted on two adjacent groups of supporting rod pieces and positioned at the bottom of a concrete structure, the keel assembly comprises transverse keels used for supporting the two ends of the laminated slabs and longitudinal keels used for sealing gaps formed by every two adjacent laminated slabs. The length of the supporting rod piece can be adjusted according to the height of a floor, and the supporting requirements of floors with different heights are met; the supporting tray assemblies move in the vertical direction, so that the transverse keels installed on the supporting tray assemblies and the longitudinal keels used for sealing the gaps formed by the two adjacent sets of laminated plates are removed, and the purpose of early removal is achieved; the device is convenient to assemble and disassemble, simple in structure and high in practicability.

Description

Technical Field

[0001] The utility model relates to the technical field of construction engineering, and more specifically, to an early-demolition formwork system applicable to laminated plates. Background Art

[0002] The early-demolition formwork system is a support system including a scaffold and formwork for the casting of concrete, reinforced concrete buildings or structures. The bottom formwork for casting beams or slabs is formed by combining the top plates and formwork of support columns. When the beams or slabs are cast to a certain degree, the formwork is removed through an early-demolition mechanism, and the cast beams or slabs are continuously supported by the top plates of the support columns until they can be completely removed. The early-demolished formwork is transferred to other positions or floors, thereby shortening the construction period, achieving the purpose of improving construction labor productivity, and at the same time reducing the number of formworks invested and lowering the construction cost.

[0003] In the existing early-demolition formwork system, during demolition, construction workers need to climb high to carry out the demolition, which poses a safety risk, and it cannot perfectly adapt to all projects; therefore, how to develop an early-demolition formwork system with fast formwork erection and demolition, reliable construction safety, and outstanding adaptability has been a difficult problem that technicians in this field have been thinking about. Summary of the Utility Model

[0004] The technical problem to be solved by the utility model is to provide an early-demolition formwork system applicable to laminated plates;

[0005] The solution adopted by the utility model to solve the technical problem is as follows:

[0006] An early-demolition formwork system applicable to laminated plates includes a plurality of groups of support rod members with the same structure and adjustable axial length, and a keel assembly detachably installed on adjacent two groups of support rod members and located at the bottom of the concrete structure; the keel assembly includes a cross keel for supporting both ends of the laminated plate and a longitudinal keel for closing the gap formed between adjacent two groups of laminated plate members.

[0007] The support rod member includes a support tray assembly for installing the keel assembly, a telescopic rod assembly sleeved in the support tray assembly and slidably matched with the support tray assembly in the vertical direction, and a locking assembly for locking the support tray assembly and the telescopic rod assembly;

[0008] The top end of the telescopic rod assembly is on the same plane as the keel assembly, and the other end thereof penetrates through the support tray assembly.

[0009] In some possible implementation manners, the support tray assembly includes a first steel pipe and a tray arranged at the top of the first steel pipe and coaxially arranged with the first steel pipe; the keel assembly is installed on the tray.

[0010] In some possible embodiments, the telescopic rod assembly includes a support plate mounted on the tray and coplanar with the keel assembly, and a steel pipe two with one end connected to the bottom of the support plate and sleeved inside the steel pipe one; the other end of the steel pipe two penetrates through the steel pipe one.

[0011] In some possible embodiments, the telescopic rod assembly further includes a support base sleeved outside the steel pipe two and slidably matched with the steel pipe two in the vertical direction, and a locking member for locking the support base and the steel pipe two.

[0012] In some possible embodiments, the support base includes a steel pipe three sleeved outside the steel pipe two and located below the steel pipe one, and a base mounted at the bottom of the steel pipe three; an adjustment gap is formed between the steel pipe three and the steel pipe one.

[0013] In some possible embodiments, a plurality of groups of through holes are arranged on the steel pipe two along the axial direction of the steel pipe two; the locking assembly has the same structure as the locking member, and includes a plug rod used in cooperation with the through hole, a long hole used in cooperation with the through hole and arranged along the axis of the steel pipe one or the steel pipe three, and a rotating disk connected to the steel pipe one or the steel pipe three and used in cooperation with the corresponding plug rod; the rotating disk is sleeved outside the steel pipe one or the steel pipe three.

[0014] In some possible embodiments, the rotating disk is in screw connection with the steel pipe one or the steel pipe three.

[0015] In some possible embodiments, mounting holes are provided on the tray, and mounting bosses used in cooperation with the mounting holes are respectively provided at the bottoms of the transverse keel and the longitudinal keel for closing the gap formed by two adjacent sets of laminated plate members.

[0016] In some possible embodiments, it includes a plurality of groups of horizontal members for connecting all the support members and arranged horizontally.

[0017] A method for using an early demolition formwork system for laminated plates according to the above, specifically includes the following steps:

[0018] After the strength of the cast concrete structure reaches 50%, lower the height of the tray, and remove the transverse keel and the longitudinal keel for closing the gap formed by two adjacent sets of laminated plate members.

[0019] After the strength of the cast concrete structure reaches 100%, disassemble and assemble the telescopic rod assembly and the horizontal members.

[0020] Compared with the prior art, the beneficial effects of the present utility model are:

[0021] The present utility model can adjust the length of the support members according to the height of the floor, so as to meet the support requirements of floors with different heights;

[0022] The utility model achieves the purpose of early removal by moving the support tray assembly vertically, so as to remove the transverse keel installed on the support tray assembly and the longitudinal keel used to close the gap formed by two adjacent sets of laminated plates; when removing the transverse keel and the longitudinal keel used to close the gap formed by two adjacent sets of laminated plates, it is only necessary to control the support tray to move vertically towards one side of the support base, without the need for construction workers to work at heights, greatly improving construction safety;

[0023] The utility model is convenient for installation and removal, simple in structure and strong in practicability. Brief Description of the Drawings

[0024] Figure 1 is a schematic structural view of the support rod member in the utility model;

[0025] Figure 2 is a top view of the support tray assembly in the utility model;

[0026] Figure 3 is a side view of the support tray assembly in the utility model;

[0027] Figure 4 is Figure 1 an enlarged view of part A in

[0028] Figure 5 is Figure 1 an enlarged view of part B in

[0029] Figure 6 is a schematic structural view of the telescopic rod assembly in the utility model;

[0030] Wherein: 1 - support tray assembly, 11 - steel pipe one, 12 - tray, 121 - mounting hole, 2 - telescopic rod assembly, 21 - support plate, 22 - steel pipe two, 23 - support base, 231 - steel pipe three, 232 - base, 24 - locking part, 3 - locking assembly, 31 - through hole, 32 - long slot, 33 - insertion rod, 34 - rotating disc, 4 - keel assembly, 41 - transverse keel, 42 - longitudinal keel, 411 - mounting boss. Detailed Description of the Embodiment

[0031] In the present utility model, unless otherwise clearly defined and limited, terms such as "installation", "connection", "attachment", "fixation", etc. shall be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral body; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal communication of two components or the interaction relationship between two components. The "first", "second" and similar terms mentioned in this application do not indicate any order, quantity or importance, but are only used to distinguish different components. Similarly, terms such as "a" or "one" do not indicate a quantity limit, but indicate the existence of at least one. In the implementation of this application, "and / or" describes the association relationship of associated objects, indicating that three relationships can exist. For example, A and / or B can represent three situations: A exists alone, A and B exist simultaneously, and B exists alone. In the description of the embodiments of this application, unless otherwise stated, the meaning of "a plurality" refers to two or more. For example, a plurality of positioning posts means two or more positioning posts. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0032] The following is a detailed description of the present utility model.

[0033] As Figures 1 - 6 shown:

[0034] An early demolition formwork system applicable to laminated plates, comprising a plurality of sets of support members with the same structure and adjustable axial length, and a keel assembly 4 detachably installed on adjacent two sets of support members and located at the bottom of the concrete structure; the keel assembly 4 includes a transverse keel 41 for supporting both ends of the laminated plate and a longitudinal keel 42 for closing the gap formed between adjacent two sets of laminated plate members.

[0035] Among them, two sets of parallel and adjacent transverse keels 41 are used for the support installation of both ends of the laminated plates in the same group, and the gap formed by two sets of adjacent laminated plates arranged along the length direction of the transverse keel 41 of this group is located directly above the longitudinal keel 42; this gap will be filled with concrete structure in the later stage; the longitudinal keel 42 will replace the formwork in the prior art to close the gap formed between the laminated plates and support the concrete poured in this gap.

[0036] The support member includes a support tray assembly 1 for installing the keel assembly 4, a telescopic rod assembly 2 sleeved in the support tray assembly 1 and slidably matched with the support tray assembly 1 in the vertical direction, and a locking assembly 3 for locking the support tray assembly 1 and the telescopic rod assembly 2.

[0037] The top end of the telescopic rod assembly 2 is on the same plane as the keel assembly 4, and the other end thereof penetrates through the support tray assembly 1.

[0038] When supporting the laminated slab, the support tray assembly 1 is used for installing the transverse keel 41 for supporting the laminated slab and the longitudinal keel 42 for closing the gap formed between the laminated slab. The telescopic rod assembly 2 passes through the top of the support tray assembly 1 and penetrates the entire support tray assembly 1; when supporting, the support tray assembly 1 and the telescopic rod assembly 2 are locked and fixed through the locking assembly 3 to form an integral structure; when the strength of the concrete structure reaches 50%, the locking assembly 3 is removed, and the support tray assembly 1 is controlled to move downward, and the transverse keel 41 and the longitudinal keel 42 will be separated from the floor slab. Subsequently, the transverse keel 41 and the longitudinal keel 42 are removed, and the telescopic rod assembly 2 is used to continue supporting the concrete structure; when the strength of the concrete structure reaches 100%, the telescopic rod assembly 2 is removed and no longer supported; when workers remove the transverse keel 41 and the longitudinal keel 42, they do not need to work at heights, reducing the construction safety risk.

[0039] In some possible embodiments, the support tray assembly 1 includes a first steel pipe 11 and a tray 12 disposed on the top of the first steel pipe 11 and coaxially arranged with the first steel pipe 11; the keel assembly 4 is installed on the tray 12.

[0040] The tray 12 is annular and coaxially communicates with the first steel pipe 11. One end of the telescopic rod assembly 2 passes through the tray 12 and then passes out from the other end of the first steel pipe 11, so that the telescopic rod assembly 2 is sleeved in the first steel pipe 11; during use, when the positions of the two are adjusted in place, the two are locked and fixed through the locking assembly 3 to prevent the support tray assembly 1 from sliding vertically.

[0041] In some possible embodiments, the telescopic rod assembly 2 includes a support plate 21 installed on the tray 12 and coplanar with the keel assembly 4, and a second steel pipe 22 with one end connected to the bottom of the support plate 21 and sleeved in the first steel pipe 11; the other end of the second steel pipe 22 penetrates the first steel pipe 11;

[0042] The setting of the support plate 21 can, on the one hand, increase the contact area between the telescopic rod assembly 2 and the concrete structure, making the support more stable, and can also effectively prevent the concrete slurry of the concrete structure from entering the second steel pipe 22 during the pouring of the concrete structure and polluting the entire device;

[0043] The transverse keel 41 and the longitudinal keel 42 connected to the same tray 12 will form an installation cavity for installing the support plate 21. The support plate 21 will be located in this installation cavity, and the top end of the second steel pipe 22 is connected to the bottom of the support plate 21; the other end of the second steel pipe 22 will pass through the first steel pipe 11.

[0044] In some possible embodiments, in order to enable the telescopic rod assembly 2 to be applicable to the usage requirements of different heights; the telescopic rod assembly 2 further includes a support base 23 sleeved outside the second steel pipe 22 and slidably engaged with the second steel pipe 22 in the vertical direction, and a locking member 24 for locking the support base 23 and the second steel pipe 22; the rotating disk 34 is screwed to the first steel pipe 11 or the third steel pipe 231;

[0045] The support bottom is telescopically connected to one end of the second steel pipe 22 away from the support plate 21, and after the telescopic rod assembly 2 is adjusted to the required height, the second steel pipe 22 and the support base 23 are locked and fixed by the locking member 24.

[0046] In some possible embodiments, the support base 23 includes a third steel pipe 231 sleeved outside the second steel pipe 22 and located below the first steel pipe 11, and a base 232 installed at the bottom of the third steel pipe 231; an adjustment gap is formed between the third steel pipe 231 and the first steel pipe 11;

[0047] The third steel pipe 231 is sleeved outside the second steel pipe 22, and the base 232 is provided at the bottom of the third steel pipe 231, so that after being fixedly connected to the second steel pipe 22, it can effectively support the concrete structure; an adjustment gap is formed between the mutually close sides of the third steel pipe 231 and the first steel pipe 11; thus enabling the first steel pipe 11 to move vertically, facilitating the early removal of the keel assembly 4 after the strength of the concrete structure reaches 50%.

[0048] In some possible embodiments, in order to effectively lock and fix the first steel pipe 11 and the second steel pipe 22, and the second steel pipe 22 and the third steel pipe 231 through the locking assembly 3, a plurality of groups of through holes 31 are arranged on the second steel pipe 22 along the axial direction of the second steel pipe 22; the locking assembly 3 has the same structure as the locking member 24, and includes a plug rod 33 used in cooperation with the through hole 31, a long hole 32 used in cooperation with the through hole 31 and arranged along the axis of the first steel pipe 11 or the third steel pipe 231, and a rotating disk 34 connected to the first steel pipe 11 or the third steel pipe 231 and used in cooperation with the corresponding plug rod 33; the rotating disk 34 is sleeved outside the first steel pipe 11 or the third steel pipe 231;

[0049] Specifically, the through holes 31 are horizontally arranged, and there are two groups of long holes 32 and they communicate with the inside of the first steel pipe 11, so that the through holes 31 and the long holes 32 can communicate; when locking and fixing, the plug rod 33 will pass through the long hole 32 and the through hole 31, and both ends of the plug rod 33 are located outside the first steel pipe 11 and are in abutting cooperation with the rotating disk 34, realizing that the first steel pipe 11 or the third steel pipe 231 sleeved with the rotating disk 34 cannot move vertically to achieve telescopic adjustment;

[0050] The long strip hole 32 is vertically arranged in the length direction and is arranged at the threaded parts of the first steel pipe 11 and the third steel pipe 231. Its vertical length is less than the vertical length of the threaded section, which effectively restricts the vertical movement positions of the first steel pipe 11 and the second steel pipe 22, preventing the separation between the first steel pipe 11 and the second steel pipe 22, and between the second steel pipe 22 and the third steel pipe 231.

[0051] As Figure 1 , Figure 5 shown, the insertion rod 33 in the locking assembly 3 is located below the rotating disk 34 in the locking assembly 3. The rotating disk 34 is sleeved on the outer side of the first steel pipe 11. The insertion rod 33 is used to restrict the first steel pipe 11 from moving vertically towards the side close to the third steel pipe 231. Only when it is necessary to remove the horizontal keel 41 and the vertical keel 42, adjust the rotating disk 34 to move towards the top side of the first steel pipe 11, so that the first steel pipe 11 moves downward as a whole, thereby causing the horizontal keel 41 and the vertical keel 42 connected to the support tray assembly 1 to move downward, realizing the early removal of the horizontal keel 41 and the vertical keel 42. During the early removal process, the second steel pipe 22 and the third steel pipe 231 are always locked and fixed by the locking member 24, and their positions will not change, thus effectively supporting the concrete structure.

[0052] As Figure 2 , Figure 6 shown, the insertion rod 33 in the locking member 24 is located above the rotating disk 34 in the locking member 24. When the strength of the concrete structure reaches 100%, and it is necessary to remove the telescopic rod assembly 2, at this time, take out the insertion rod 33 in the locking member 24, and the second steel pipe 22 will no longer be restricted, and thus can move vertically towards the side close to the third steel pipe 231, causing the support plate 21 to separate from the concrete structure, and the telescopic rod assembly 2 no longer supports the concrete structure.

[0053] In some possible implementation manners, for the convenience of installing the horizontal keel 41 and the vertical keel 42, mounting holes 121 are provided on the tray 12, and mounting bosses 411 that cooperate with the mounting holes 121 are respectively provided at the bottoms of the horizontal keel 41 and the vertical keel 42.

[0054] The horizontal keel 41 and the vertical keel 42 are respectively provided with bosses at their bottoms. Through the cooperation of the bosses and the mounting holes 121, the installation and removal of the horizontal keel 41 and the vertical keel 42 are made more convenient.

[0055] In some possible implementation manners, to effectively ensure the stability of the entire early removal formwork system and enable it to effectively support the concrete structure, it includes several groups of horizontal members that are used to connect all the support members and are horizontally arranged. The horizontal members connect adjacent two groups of support members, so that all the support members are connected to form a whole.

[0056] A method for using an early-demolition formwork system suitable for laminated slabs as described above, specifically including the following steps:

[0057] Step S1: Install support members according to the requirements of the construction plan;

[0058] Specifically, it includes the following steps:

[0059] Step S11: Calculate the final height of the support members according to the actual height of each floor slab at the construction site, and pre-assemble a support member in advance according to this height, and give technical disclosures to the construction operators;

[0060] Step S12: Install the support bases 23 at the corresponding positions according to the requirements of the horizontal and vertical spacings of the support members in the construction plan;

[0061] Step S13: Assemble all the support members;

[0062] Step S2: After assembling all the support members, adjust the top surfaces of all the support tray assemblies 1 to be on the same horizontal plane, install the transverse keels 41 and longitudinal keels 42; then install the laminated slabs, and after the installation is completed, check and verify the elevation;

[0063] Step S3: When the elevation meets the requirements, carry out the casting and curing of the concrete structure between and above the laminated slabs;

[0064] Step S4: After the strength of the cast concrete structure reaches 50%, control the rotary disk 34 on the steel pipe 11 to move away from the side of the steel pipe 3 231, so that the steel pipe 11 moves towards the side of the steel pipe 3 231, driving the tray 12 towards one end of the steel pipe 3 231, thereby reducing the height of the tray 12, separating the transverse keel 41 and longitudinal keel 42 from the concrete structure, and removing the transverse keel 41 and longitudinal keel 42;

[0065] Step S5: After the strength of the cast concrete structure reaches 100%, disassemble and assemble the telescopic rod assembly 2 and the horizontal members;

[0066] When disassembling and assembling the telescopic rod assembly 2, control the rotary disk 34 on the steel pipe 3 231 to move towards the side close to the base 232, so that the steel pipe 2 22 is no longer restricted from moving, and the steel pipe 2 22 will move towards the side close to the base 232, driving the support plate 21 to move towards the side close to the base 232 and separating from the concrete structure.

[0067] The present utility model is not limited to the foregoing specific embodiments. The present utility model extends to any new feature or any new combination disclosed in this specification, as well as any new method or process step or any new combination disclosed.

Claims

1. An early dismantling formwork system suitable for composite panels, characterized in that: It includes several groups of support rods with the same structure and adjustable axial length, and a keel assembly that can be detachably installed on two adjacent groups of support rods and is located at the bottom of the concrete structure; the keel assembly includes a transverse keel for supporting the two ends of the composite plate and a longitudinal keel for closing the gap formed by the two adjacent groups of composite plates.

2. The early dismantling formwork system suitable for composite slabs according to claim 1, characterized in that: The support rod comprises a support tray assembly for installing a keel assembly, a telescopic rod assembly sleeved in the support tray assembly and vertically slidingly matched with the support tray assembly, and a locking assembly for locking the support tray assembly and the telescopic rod assembly; The top end of the telescopic rod assembly is on the same plane as the keel assembly, and the other end thereof penetrates through the supporting tray assembly.

3. The early dismantling formwork system suitable for composite slabs according to claim 2, characterized in that: The support tray assembly includes a steel pipe and a tray arranged on the top of the steel pipe and arranged coaxially with the steel pipe; the keel assembly is installed on the tray.

4. The early dismantling formwork system suitable for composite slabs according to claim 3, characterized in that: The telescopic rod assembly includes a support plate installed on the pallet and coplanar with the keel assembly, and a steel pipe 2 whose one end is connected to the bottom of the support plate and is sleeved in the steel pipe 1; the other end of the steel pipe 2 passes through the steel pipe 1.

5. The early dismantling formwork system suitable for composite slabs according to claim 4, characterized in that: The telescopic rod assembly also includes a support base which is sleeved on the outside of the second steel pipe and vertically slidably matched with the second steel pipe, and a locking piece used to lock the support base and the second steel pipe.

6. The early dismantling formwork system suitable for composite slabs according to claim 5, characterized in that: The support base includes a steel pipe three which is sleeved on the outside of the steel pipe two and located below the steel pipe one, and a base installed at the bottom of the steel pipe three; an adjustment gap is formed between the steel pipe three and the steel pipe one.

7. The early dismantling formwork system suitable for composite slabs according to claim 5, characterized in that: A plurality of through holes are arranged on the steel pipe 2 and along the axial direction of the steel pipe 2; the locking assembly has the same structure as the locking piece, including an insertion rod used in conjunction with the through holes, a long hole used in conjunction with the through holes and arranged along the axis of the steel pipe 1 or the steel pipe 3, and a rotating disk connected to the steel pipe 1 or the steel pipe 3 and used in conjunction with the corresponding insertion rod; the rotating disk is sleeved on the outside of the steel pipe 1 or the steel pipe 3.

8. The early dismantling formwork system suitable for composite slabs according to claim 7, characterized in that: The rotating disk is threadedly matched with steel pipe one or steel pipe three.

9. An early dismantling formwork system suitable for composite slabs according to any one of claims 3 to 8, characterized in that: The tray is provided with mounting holes, and mounting bosses used in conjunction with the mounting holes are respectively provided at the bottom of the transverse keel and a longitudinal keel used to close the gap formed by two adjacent groups of superimposed panels.

10. An early dismantling formwork system suitable for composite panels according to any one of claims 1 to 8, characterized in that: It comprises several groups of horizontal rods which are used to connect all the supporting rods and are arranged horizontally.

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