Un-supported laminated floor post-cast strip hoisting mold structure and construction method thereof

Abstract

The application discloses a kind of free support's superimposed plate floor post-cast strip hoisting mould structure and its construction method, comprising: the prefabricated embedded joint plate embedded in the lower joint of the post-cast joint of two adjacent superimposed plates, the bottom of the prefabricated embedded joint plate is extended to form support flange, the support flange is supported on the bottom of the superimposed plate, the bottom of the superimposed plate is embedded with anchor rod, and the anchor rod is connected to the support flange;Support frame, the upper part of two superimposed plates is respectively provided with support, the thickness of support is adapted to the thickness of cast-in-place floor slab on superimposed plate, and support frame is detachably installed on two supports;Yoke plate, embedded in the middle of post-cast joint, both ends of yoke plate are respectively upturned to extend to form fin plate, fin plate extends to the upper part of superimposed plate and is connected to support;Opposite screw rod, tied to prefabricated embedded joint plate and support frame, opposite screw rod is connected to yoke plate.The application solves the problem of long support period and inconvenient material transportation in the construction of traditional superimposed plate floor post-cast strip.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of building construction, in particular to a support-free superimposed slab floor post-cast strip hanging formwork structure and a construction method thereof. BACKGROUND

[0002] In the traditional construction of superimposed slab floor post-cast strip, steel formwork or wooden formwork is used to be independently supported and fixed by scaffolding. This method has a long support period and high cost. In addition, the support of scaffolding hinders the transportation of materials, increases the difficulty of construction, and affects the construction progress. Furthermore, the traditional construction method requires a large amount of manual labor for the installation and disassembly of formwork, which not only increases the labor intensity of workers, but also makes it difficult to guarantee the construction quality and safety, and is not cost-effective.

[0003] The information disclosed in this BACKGROUND section is only for the purpose of increasing the understanding of the background of the present application and should not be regarded as an acknowledgment or any form of suggestion that this information forms prior art that is publicly known. SUMMARY

[0004] In order to overcome the defects of the prior art, a support-free superimposed slab floor post-cast strip hanging formwork structure and a construction method thereof are provided to solve the problems of long support period and inconvenient material transportation in the traditional construction of superimposed slab floor post-cast strip.

[0005] To achieve the above-mentioned purpose, a support-free superimposed slab floor post-cast strip hanging formwork structure is provided, comprising:

[0006] A prefabricated joint plate is embedded in the lower joint of the post-cast joint between two adjacent superimposed slabs, the bottom of the prefabricated joint plate extends to form a support flange, the support flange is supported on the bottom of the superimposed slab, an anchor rod is embedded in the bottom of the superimposed slab, and the anchor rod is connected to the support flange;

[0007] A support frame is provided on the upper part of the two superimposed slabs, the thickness of the support frame is adapted to the thickness of the cast-in-place floor slab on the superimposed slab, and the support frame is detachably installed on the two supports;

[0008] A carrying plate is embedded in the middle of the post-cast joint, the two ends of the carrying plate are respectively upwardly extended to form wing plates, the wing plates extend to the upper part of the superimposed slab and are connected to the supports;

[0009] A tensioning screw is connected to the prefabricated joint plate and the support frame, and the tensioning screw is connected to the carrying plate.

[0010] Further, an elastic sealing strip is provided between the support flange and the bottom of the superimposed slab.

[0011] Further, the support flange is provided with a through hole, the lower end of the anchor rod is inserted into the through hole, and a support is mounted on the lower end of the anchor rod.

[0012] Further, the support frame comprises:

[0013] A vertical rod is vertically arranged on the support;

[0014] A horizontal beam is provided with vertical through holes at both ends, and the vertical rod is movably inserted into the through holes;

[0015] Two limiting members are adjustably mounted on the vertical rod, and the two limiting members are clamped on the ends of the horizontal beam.

[0016] Further, the flat board is provided with a through hole, the opposite screw rod is movably inserted into the through hole, and two height adjusting nuts are mounted on the middle part of the opposite screw rod and are pressed against the upper and lower sides of the flat board.

[0017] Further, the bottom of the composite board is supported by a support, and the position of the support corresponds to the position of the column of the support.

[0018] Further, a connecting sleeve is embedded in the top of the support, and the lower end of the vertical rod is inserted into the connecting sleeve.

[0019] The construction method of the support-free composite floor post-cast strip hanging mold structure of the present application comprises the following steps:

[0020] Supports are arranged on the upper parts of the two composite boards respectively;

[0021] A flat board is embedded in the post-cast joint, and the fin plates at both ends of the flat board are connected to the supports;

[0022] Support frames are mounted on the two supports;

[0023] A prefabricated joint plate is embedded in the lower joint of the post-cast joint of the adjacent two composite boards, and an anchor rod is embedded in the bottom of the composite board, the anchor rod is connected to the support flange, so that the support flange supports the bottom of the composite board;

[0024] A support frame is arranged on the upper part of the two composite boards respectively, the thickness of the support frame is adapted to the thickness of the cast-in-place floor slab on the composite board, and the support frame is detachably mounted on the two supports.

[0025] The pair of pull screws are connected to the pair of supports, and the pair of pull screws are connected to the flat plate, so that the prefabricated joint plate is blocked at the lower joint opening of the post-cast joint to form a closed post-cast joint pouring space.

[0026] Concrete is poured in the post-cast joint pouring space to form a post-cast joint.

[0027] The post-cast joint hanging formwork structure of the present application has the advantages that the prefabricated joint plate is used as the bottom formwork of the post-cast joint, and subsequent form removal is not required. The prefabricated joint plate is supported by the support frame and the pair of pull screws, and the prefabricated joint plate is supported by the anchoring rod and the support flange of the prefabricated joint plate. The lower formwork support frame of the post-cast joint is cancelled, the safety hazard of the post-cast joint support being removed by mistake in the form removal process is avoided, the independent formwork support frame support at the bottom of the post-cast joint is cancelled, the bottom space is saved, the process connection is facilitated, the material transfer is not affected by the support, the construction efficiency is improved, and good economic and social benefits are obtained. The flat plate connects the two supports to position the supports, and the structural stability of the whole hanging formwork structure and the structural strength of the post-cast joint are improved. BRIEF DESCRIPTION OF DRAWINGS

[0028] Other features, objects, and advantages of the present application will become more apparent from the following detailed description of non-limiting embodiments thereof, read in conjunction with the accompanying drawings:

[0029] Figure 1 The structure of the post-cast joint hanging formwork structure of the present application is shown in the accompanying drawings. DETAILED DESCRIPTION

[0030] The present application will be further described in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely intended to explain the related application, but not to limit the application. In addition, it should be noted that only the parts related to the application are shown in the drawings for the convenience of description.

[0031] It should be noted that the embodiments and features in the embodiments can be combined with each other without conflict. The present application will be described in detail below with reference to the accompanying drawings and embodiments.

[0032] Referring to Figure 1 The present application provides a post-cast joint hanging formwork structure of a support-free composite slab floor, which comprises a prefabricated joint plate 1, a support frame 2, a flat plate 3, and a pair of pull screws 4.

[0033] The prefabricated joint plate 1 is a prefabricated concrete plate. The prefabricated joint plate 1 is embedded in the lower joint opening of the post-cast joint between two adjacent composite slabs 5. The bottom of the prefabricated joint plate 1 extends to form a support flange 11.

[0034] In the embodiment, the prefabricated caulking plate is in the shape of a convex letter. The prefabricated caulking plate is arranged along the length direction of the post-cast joint, and the width of the prefabricated caulking plate is adapted to the width of the post-cast joint.

[0035] The support flange 11 is supported on the bottom of the composite slab 5. The bottom of the composite slab 5 is embedded with an anchoring rod 12. The anchoring rod 12 is connected to the support flange 11.

[0036] As a preferred embodiment, an elastic sealing strip 13 is arranged between the support flange 11 and the bottom of the composite slab 5.

[0037] In the embodiment, the elastic sealing strip is a rubber strip.

[0038] In the embodiment, the support flange 11 is provided with a through hole. The lower end of the anchoring rod 12 is inserted into the through hole. The lower end of the anchoring rod 12 is provided with a support 14. The support 14 is supported on the bottom of the support flange 11. Preferably, the support is a support nut.

[0039] The upper portions of the two composite slabs 5 are respectively provided with a support seat 21. The thickness of the support seat 21 is adapted to the thickness of the cast-in-place floor slab on the composite slab 5. The support frame 2 is detachably mounted on the two support seats 21.

[0040] The pole plate 3 is embedded in the post-cast joint. The two ends of the pole plate are respectively upwardly extended to form wing plates. The wing plates extend to the upper portions of the composite slabs 5 and are connected to the support seats 21.

[0041] The tension rod 4 is connected to the prefabricated caulking plate 1 and the support frame 2. The tension rod 4 is connected to the pole plate 3.

[0042] In the embodiment, a post-cast joint is provided with multiple support seats. Specifically, the support frame 2 comprises a vertical rod 22, a cross beam 23 and a limiting member 24.

[0043] The vertical rod 22 is vertically arranged on the support seat 21. The two ends of the cross beam 23 are provided with vertical through holes. The vertical rod 22 is movably inserted into the through holes.

[0044] The number of the limiting members 24 is two. The two limiting members 24 are adjustably mounted on the vertical rod 22. The two limiting members 24 are clamped on the ends of the cross beam.

[0045] As a preferred embodiment, the top of the support seat 21 is embedded with a connecting sleeve. The lower end of the vertical rod 22 is inserted into the connecting sleeve.

[0046] In the embodiment, the outer portion of the vertical rod is formed with external threads. The limiting member is a limiting nut. The connecting sleeve is a threaded sleeve. The lower end of the vertical rod is screwed into the connecting sleeve.

[0047] In the embodiment, the bottom of the laminated slab 5 is supported by the support. The position of the support 21 corresponds to the position of the column 6 of the support.

[0048] As a preferred embodiment, the flat plate is provided with a through hole. The tensioning screw rod 4 is movably arranged in the through hole. Two height adjusting nuts 32 are arranged on the middle part of the tensioning screw rod 4. The two height adjusting nuts 32 are respectively pressed against the upper and lower sides of the flat plate.

[0049] The application provides a construction method of a support-free laminated slab floor post-cast strip hanging mold structure, which comprises the following steps:

[0050] S1, supports 21 are arranged on the upper parts of two laminated slabs 5 respectively.

[0051] S2, a flat plate 3 is embedded in the post-cast joint, and the fin plates at the two ends of the flat plate are connected to the supports 21.

[0052] S3, support frames 2 are arranged on the two supports 21.

[0053] S4, a prefabricated joint plate 1 is embedded in the lower joint of the post-cast joint of the two adjacent laminated slabs 5, and an anchoring rod 12 is embedded in the bottom of the laminated slab 5, the anchoring rod 12 is connected to the support flange 11, so that the support flange 11 supports the bottom of the laminated slab 5.

[0054] S5, the support frames 2, the upper parts of the two laminated slabs 5 are respectively provided with supports 21, the thickness of the support 21 is adapted to the thickness of the cast-in-place floor slab on the laminated slab 5, and the support frame 2 is detachably arranged on the two supports 21.

[0055] S6, a tensioning screw rod 4 is connected between the prefabricated joint plate 1 and the support frame 2, and the tensioning screw rod 4 is connected to the flat plate 3, so that the prefabricated joint plate 1 is blocked in the lower joint of the post-cast joint to form a closed post-cast strip pouring space.

[0056] S7, concrete is poured in the post-cast strip pouring space to form a post-cast strip.

[0057] Before pouring the concrete, the reinforcement structure of the post-cast strip is bound in the post-cast strip pouring space, which is a prior art and will not be described here. After pouring the concrete, the reinforcement structure of the post-cast strip, the flat plate and the lower part of the tensioning screw rod are covered.

[0058] In the embodiment, the tensioning screw rod is a three-section tensioning screw rod. The tensioning screw rod comprises an upper section, a middle section and a lower section. The opposite ends of the middle section are detachably connected to the upper section and the lower section respectively.

[0059] The middle section of the pull screw is embedded in the prefabricated caulking plate, and the upper section of the pull screw extends into the post-cast joint. The lower section of the pull screw is arranged below the prefabricated caulking plate. The pull screw on the multiple supports supports the backrest on the bottom of the prefabricated caulking plate through the gable card. The upper section of the pull screw is connected to the cross beam.

[0060] The support-free composite slab floor post-cast joint hanging formwork structure of the application uses a prefabricated caulking plate as the bottom formwork of the post-cast joint, and does not need to be removed subsequently. The prefabricated caulking plate is supported by the support frame and the pull screw, and is connected to the support flange of the prefabricated caulking plate by the anchoring rod to cancel the post-cast joint lower support formwork, avoid the safety hazard of the post-cast joint support being removed by mistake during the formwork removal process, and cancel the independent support formwork support at the bottom of the post-cast joint, thereby saving the bottom space, facilitating the process connection, avoiding the influence of support on material transfer, accelerating the construction efficiency, and having good economic and social benefits. The flat board connects two supports to position the supports and improve the structural stability of the entire hanging formwork structure and the structural strength of the post-cast joint.

[0061] The above description is only the preferred embodiment of the application and the explanation of the applied technical principles. Those skilled in the art should understand that the scope of the application involved in the application is not limited to the technical solutions formed by the specific combination of the above technical features, and should also cover other technical solutions formed by the arbitrary combination of the above technical features or their equivalent features without departing from the inventive concept. For example, the above features are replaced with the technical features disclosed in the application (but not limited to) having similar functions to form a technical solution.

Claims

1. A support-free suspended formwork structure for post-cast strips in composite slab floors, characterized in that, include: A precast joint sealant is embedded in the lower joint opening of the post-cast joint between two adjacent composite slabs. The bottom of the precast joint sealant extends to form a supporting flange, which supports the bottom of the composite slab. An anchor rod is embedded in the bottom of the composite slab and is connected to the supporting flange. The support frame is provided with supports on the upper part of the two composite slabs respectively. The thickness of the supports is adapted to the thickness of the cast-in-place floor slab on the composite slab. The support frame is detachably installed on the two supports. A flat plate is embedded in the post-cast joint. Both ends of the flat plate are turned upward and extended to form wing plates. The wing plates extend to the upper part of the composite plate and are connected to the support. A tie rod is connected to the precast joint plate and the support frame, and the tie rod is connected to the spreader plate; The support frame includes: a vertical pole erected on the support; and a horizontal beam with vertically arranged through holes at both ends, through which the vertical pole is movably inserted. Two limiting members are installed on the upright in an adjustable position and clamped at the end of the crossbeam; The spreader plate has a through hole, and the pull screw is movably inserted into the through hole. Two height adjustment nuts are installed on the middle part of the pull screw, and the two height adjustment nuts press against the upper and lower sides of the spreader plate respectively. A connecting sleeve is embedded in the top of the support, and the lower end of the upright is inserted into the connecting sleeve.

2. The support-free composite slab floor post-pouring strip suspended formwork structure according to claim 1, characterized in that, An elastic sealing strip is provided between the support flange and the bottom of the composite plate.

3. The support-free composite slab floor post-pouring strip suspended formwork structure according to claim 1, characterized in that, The supporting flange has a through hole, the lower end of the anchor rod passes through the through hole, and a support member is installed at the lower end of the anchor rod, which is supported at the bottom of the supporting flange.

4. The support-free composite slab floor post-pouring strip suspended formwork structure according to claim 1, characterized in that, The bottom of the composite plate is supported by a bracket, and the position of the bracket corresponds to the position of the column of the bracket.

5. A construction method for a support-free composite slab floor post-cast strip suspended formwork structure as described in any one of claims 1 to 4, characterized in that, Includes the following steps: Supports are installed on the upper parts of the two composite slabs respectively; A flat plate is embedded in the post-cast joint, and the wing plates at both ends of the flat plate are connected to the support. Support frames are installed on the two supports; A precast caulking plate is embedded in the lower joint of the post-cast joint of two adjacent composite slabs, and an anchor rod is embedded in the bottom of the composite slab. The anchor rod is connected to the support flange, so that the support flange supports the bottom of the composite slab. The support frame is provided with the support on the upper part of the two composite slabs respectively. The thickness of the support is adapted to the thickness of the cast-in-place floor slab on the composite slab. The support frame is detachably installed on the two supports. The precast joint caulking plate and the support frame are connected by tie rods, and the tie rods are connected to the spreader plate, so that the precast joint caulking plate seals the lower opening of the post-pouring joint to form a closed post-pouring strip pouring space; Concrete is poured into the post-pouring strip pouring space to form the post-pouring strip.

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