Floor slab material conveying opening construction device and construction method

Abstract

The application discloses a floor material conveying opening construction device and a construction method. The device comprises an outer sleeve, an inner supporting sleeve, an upper wooden ring, a middle partition block and a lower partition ring. The outer sleeve is provided with fast and easy closing nets on all sides, which are used as forming surfaces of the material conveying opening and are used for extending the floor steel bars to form reserved steel bars. The inner supporting sleeve is used for directly abutting on the reserved steel bars and indirectly providing the inner support for all sides of the outer sleeve. The upper wooden ring is used for abutting on the upper end of the outer sleeve through a rabbet joint to transfer the inner support force from the upper end of the inner supporting sleeve to the upper end of the outer sleeve and form an installation point of the temporary cover of the material conveying opening. The middle partition block is used for transferring the inner support force from the middle part of the inner supporting sleeve to the middle part of the outer sleeve. The lower partition ring is used for transferring the inner support force from the lower end of the inner supporting sleeve to the lower end of the outer sleeve. The device avoids the chiseling process, greatly reduces the labor cost, temporarily seals and protects the material conveying opening without damaging the floor, can provide sufficient inner support and avoid slurry leakage.

Description

TECHNICAL FIELD

[0001] The present application relates to floor construction, in particular to a floor material transfer opening construction device and a construction method. BACKGROUND

[0002] During the construction of the main structure of a building, a material transfer opening is generally reserved on the floor for the convenience of construction. At present, when pouring the floor to form a material transfer opening, a four-sided formwork is used to surround the size of the material transfer opening and is arranged at the designed position of the material transfer opening, so that the material transfer opening can be formed after pouring. This forming method is simple, but has the following three problems:

[0003] Firstly, after the building is capped, the material transfer opening needs to be blocked. At this time, the concrete around the material transfer opening on the floor needs to be chiseled first to expose the reserved steel bars, and then the steel bars of the material transfer opening can be connected with the reserved steel bars, and after that, pouring can be carried out. The chiseling amount is large and the labor cost is high.

[0004] Secondly, after the material transfer opening is used, before the building is capped, the material transfer opening needs to be temporarily closed and protected. Since there is no fixed point around the floor, the closing and protecting piece needs to be fixed on the floor, which will damage the floor. If the closing and protecting piece is not fixed, it will easily move randomly, causing safety hazards.

[0005] Thirdly, the bottom of the four-sided formwork of the material transfer opening is not supported, which is easy to leak grout and has poor forming quality. SUMMARY

[0006] The purpose of the present application is to provide a floor material transfer opening construction device and a floor material transfer opening construction method based on the above construction device. The device avoids the chiseling process, greatly reduces the labor cost, and can temporarily close and protect the material transfer opening without damaging the floor. It can provide sufficient internal support and avoid grout leakage.

[0007] The technical solution adopted by the present application is:

[0008] A kind of floor material transfer port construction device, including outer sleeve, inner support cylinder, upper wood ring, middle partition block, lower partition ring;The size of outer sleeve is matched with the size of material transfer port, and each surface around it is used fast and easy closing net, which is used as the forming surface of material transfer port and provides the reserved reinforcement for the extension of floor reinforcement;The size of inner support cylinder is matched with the size of the reserved reinforcement end, which is used to provide inner support for each surface around outer sleeve when installing;Upper wood ring is made of wood, which is annular and fixed along the outer periphery of inner support cylinder upper end, and its outer edge size is larger than that of outer sleeve, and the lower end of its outer edge is provided with a rebate, which is used to install the temporary cover of material transfer port on the upper end of outer sleeve by rebate when installing, to transfer the inner support force of inner support cylinder upper end to the upper end of outer sleeve and form the installation point of temporary cover;Middle partition block is distributed and fixed outside the middle of each surface around inner support cylinder, and its width is the length of reserved reinforcement, which is used to transfer the inner support force of inner support cylinder middle to the middle of outer sleeve when installing;Lower partition ring is annular and independent of other components, and its width is the length of reserved reinforcement, which is used to transfer the inner support force of inner support cylinder lower end to the lower end of outer sleeve when installing.

[0009] A kind of floor material transfer port construction method based on the above-mentioned floor material transfer port construction device, using the following steps:

[0010] S1) install floor bottom die support, floor bottom die and floor reinforcement, both floor bottom die and floor reinforcement are provided with openings at the position of material transfer port, the opening of floor bottom die is matched with the size of material transfer port, and the size of opening of floor reinforcement is the size of reserved reinforcement end;

[0011] S2) install floor material transfer port construction device: first install outer sleeve, so that the fast and easy closing net of each surface around outer sleeve is used to form reserved reinforcement by extending floor reinforcement, and the lower end is supported on floor bottom die support and abuts on the inner wall of floor bottom die opening;Then install lower partition ring, which is supported on floor bottom die support and abuts on the inner wall of outer sleeve lower end;Then install inner support cylinder, which is supported on floor bottom die support and abuts on reserved reinforcement on each surface around, the lower end of inner support cylinder abuts on the inner wall of lower partition ring, the middle part abuts on the inner wall of outer sleeve through middle partition block, and the upper end is clamped on the upper end of outer sleeve through the rebate of upper wood ring;

[0012] S3) pour floor concrete;

[0013] S4) after the use of material transfer port is completed and before the top of building is sealed, temporarily seal and protect material transfer port: use upper wood ring as installation point to install temporary cover of material transfer port on upper wood ring;

[0014] S5) after the top of building is sealed, block material transfer port: remove temporary cover of material transfer port, inner support cylinder, upper wood ring, middle partition block and lower partition ring, install material transfer port bottom die support and material transfer port bottom die, connect material transfer port reinforcement with reserved reinforcement;Then pour material transfer port concrete.

[0015] Preferably, the floor bottom die support and the material transfer port bottom die support are both provided with a support frame, a top support, a main keel and a secondary keel from bottom to top.

[0016] Preferably, in step S2, a rubber sealing strip is arranged at the outer side of the upper end of the outer sleeve, and the outer sleeve is sealed with the inner wall of the floor bottom die opening through the rubber sealing strip; a rubber sealing strip is arranged at the inner side of the upper end of the outer sleeve, and the outer sleeve is sealed with the tongue and groove of the upper wood ring through the rubber sealing strip.

[0017] Preferably, in step S4, the temporary cover of the material transfer port is fixed on the upper wood ring by rivets.

[0018] Preferably, in step S5, when the upper wood ring is removed, wood chips are ensured not to be left in the pouring range of the material transfer port.

[0019] Preferably, in step S5, when the temporary cover, the inner support cylinder, the upper wood ring, the middle partition block and the lower partition ring of the material transfer port are removed, no workers are ensured to be present below the material transfer port.

[0020] Preferably, in step S5, before pouring the concrete of the material transfer port, an interface agent is brushed on the forming surface of the material transfer port, and the interface agent is a cement slurry mixed with waterproof powder.

[0021] Preferably, in step S5, when pouring the concrete of the material transfer port, micro-expansion fine aggregate concrete of the same grade or one higher grade than the floor is used.

[0022] Preferably, in step S5, after pouring the concrete of the material transfer port, curing to the design strength, and removing the bottom die of the material transfer port, a cement-based penetrating crystalline waterproof coating is applied to the interface between the concrete of the material transfer port and the floor concrete.

[0023] The beneficial effects of the present application are:

[0024] In the device, the reserved steel bars are formed by extending the floor steel bars into the quick closing net on each side of the outer sleeve, and the quick closing net itself serves as the forming surface of the material transfer port, so that the concrete around the material transfer port does not need to be chiseled after pouring the floor, avoiding the chiseling process and greatly reducing the labor cost; in the device, the upper wood ring can be used as the mounting point of the temporary cover of the material transfer port, and the material transfer port can be temporarily closed and protected without damaging the floor; in the device, the inner support cylinder, the upper wood ring, the middle partition block and the lower partition ring can provide sufficient support for the upper, middle and lower parts of the outer sleeve, avoid slurry leakage, and ensure the length of the reserved steel bars to avoid the offset of the outer sleeve during the pouring of the floor concrete. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 is a schematic diagram of the installation of the floor material transfer port construction device, and the outer sleeve shows a simplified structure.

[0026] Figure 2 is a plan view of Figure 1 , for the convenience of observation, the upper wood ring, the lower partition ring, the floor bottom form support, the floor bottom form are omitted, only the relationship of the floor steel bar, the outer sleeve, the inner supporting sleeve, the middle partition block is shown, the outer sleeve in the figure shows a simplified structure.

[0027] Figure 3 is a schematic view of the outer sleeve and the inner supporting sleeve, a in the figure is the position of the reserved steel bar, the outer sleeve in the figure shows a simplified structure.

[0028] Figure 4 is a schematic view of the floor material conveying port construction device after installation, the material conveying port is temporarily closed and protected, the outer sleeve in the figure shows a simplified structure.

[0029] Figure 5 is a schematic view after the temporary cover of the material conveying port, the inner supporting sleeve, the upper wood ring, the middle partition block and the lower partition ring are removed, and before pouring the material conveying port concrete.

[0030] Figure 6 is a schematic view after pouring the material conveying port concrete.

[0031] In the figure: 1-outer sleeve; 2-upper wood ring; 3-rubber sealing strip; 4-inner supporting sleeve; 5-middle partition block; 6-lower partition ring; 7-floor steel bar; 8-reserved steel bar; 9-floor bottom form; 10-secondary keel; 11-primary keel; 12-top support; 13-supporting frame; 14-temporary cover of the material conveying port; 15-floor concrete; 16-steel bar of the material conveying port; 17-interfacial agent; 18-bottom form of the material conveying port; 19-concrete of the material conveying port; 20-cement-based penetrating crystalline waterproof coating. DETAILED DESCRIPTION

[0032] The present application will be further described below in conjunction with the drawings and examples.

[0033] Example 1

[0034] The present example discloses a floor material conveying port construction device, as shown in Figures 1 to 4 , comprising an outer sleeve 1, an inner supporting sleeve 4, an upper wood ring 2, a middle partition block 5 and a lower partition ring 6; wherein:

[0035] The size of the outer sleeve 1 matches the size of the material conveying port, and the periphery of each surface thereof is provided with a fast and easy closing net, which is used as a forming surface of the material conveying port and provides the reserved steel bar 8 for the floor steel bar 7 to extend into, as shown in Figures 1 to 4 ;

[0036] The size of the inner supporting sleeve 4 matches the size surrounded by the end of the reserved steel bar 8, which is used to provide inner support for the periphery of each surface of the outer sleeve 1 when installed, as shown in Figures 1 to 4 ;

[0037] The upper wood ring 2 is made of wood, in a ring shape and fixed on the outer periphery of the upper end of the inner supporting cylinder 4, with an outer edge size larger than that of the outer sleeve 1 and a lower end provided with a tongue and groove, which is used to be clamped on the upper end of the outer sleeve 1 during installation to not only transfer the inner supporting force of the upper end of the inner supporting cylinder 4 to the upper end of the outer sleeve 1, but also form the installation point of the temporary cover 14 of the material conveying opening, as shown in Figure 1 and Figure 4 ;

[0038] The middle partition block 5 has a width equal to the length of the reserved steel bar 8, is fixed on the outer side of the middle part of each surface around the inner supporting cylinder 4, and is used to transfer the inner supporting force of the middle part of the inner supporting cylinder 4 to the middle part of the outer sleeve 1 during installation, as shown in Figure 1 , Figure 2 and Figure 4 ;

[0039] The lower partition ring 6 is in a ring shape and independent of other components, with a width equal to the length of the reserved steel bar 8, and is used to transfer the inner supporting force of the lower end of the inner supporting cylinder 4 to the lower end of the outer sleeve 1 during installation, as shown in Figure 1 and Figure 4 .

[0040] Example Two

[0041] This embodiment discloses a construction method of a floor material conveying opening, which is based on the floor material conveying opening construction device described above and uses the following steps:

[0042] S1) As shown in Figure 1 and Figure 2 , install the floor bottom form support, the floor bottom form 9 and the floor steel bar 7, all of which are provided with openings at the position of the material conveying opening, the opening of the floor bottom form 9 is matched with the size of the material conveying opening, and the opening size of the floor steel bar 7 is equal to the size of the reserved steel bar 8.

[0043] S2) As shown in Figure 1 and Figure 2 , install the floor material conveying opening construction device: first, install the outer sleeve 1, so that the outer sleeve 1 is supported on the floor bottom form support and abuts against the inner wall of the opening of the floor bottom form 9, with the four surfaces around the outer sleeve 1 being provided with the easy-to-close mesh for the floor steel bar 7 to extend into the reserved steel bar 8; then, install the lower partition ring 6, which is supported on the floor bottom form support and abuts against the inner wall of the lower end of the outer sleeve 1; and then, install the inner supporting cylinder 4, which is supported on the floor bottom form support and abuts against the reserved steel bar 8 on the four surfaces around the inner supporting cylinder 4, with the lower end of the inner supporting cylinder 4 abutting against the inner wall of the lower partition ring 6, the middle part of the inner supporting cylinder 4 abutting against the inner wall of the outer sleeve 1 through the middle partition block 5, and the upper end of the inner supporting cylinder 4 being clamped on the upper end of the outer sleeve 1 through the tongue and groove of the upper wood ring 2. In order to avoid grouting leakage of the joint during the grouting of the floor concrete 15, as shown in Figure 1As shown, rubber sealing strip 3 is arranged at the outer corner of the lower end of outer sleeve 1, and the lower end of outer sleeve 1 is sealed to the inner wall of the opening of floor bottom formwork 9 through rubber sealing strip 3. Rubber sealing strip 3 is arranged at the inner corner of the upper end of outer sleeve 1, and the upper end of outer sleeve 1 is sealed to the tongue-and-groove of upper wooden ring 2 through rubber sealing strip 3.

[0044] S3) Pouring floor concrete 15.

[0045] S4) As shown, Figure 4 After the use of the material conveying opening and before the sealing of the building, the material conveying opening is temporarily sealed and protected: using upper wooden ring 2 as a mounting point, temporary sealing cover 14 of the material conveying opening is mounted on upper wooden ring 2. In order to facilitate disassembly, as shown, Figure 4 Temporary sealing cover 14 of the material conveying opening can be fixed on upper wooden ring 2 through rivets.

[0046] S5) As shown, Figure 5 and Figure 6 After the sealing of the building, the material conveying opening is blocked: temporary sealing cover 14 of the material conveying opening, inner support cylinder 4, upper wooden ring 2, middle partition block 5 and lower partition ring 6 are removed. When upper wooden ring 2 is removed, it is ensured that no wood chips are left in the pouring range of the material conveying opening. When temporary sealing cover 14 of the material conveying opening, inner support cylinder 4, upper wooden ring 2, middle partition block 5 and lower partition ring 6 are removed, it is ensured that there is no worker under the material conveying opening. Material conveying opening bottom formwork support and material conveying opening bottom formwork 18 are installed, and material conveying opening reinforcement 16 is connected with reserved reinforcement 8. Before pouring material conveying opening concrete 19, interface agent 17 is brushed on the forming surface of the material conveying opening. Interface agent 17 is cement slurry mixed with waterproof powder. When pouring material conveying opening concrete 19, micro-expansion fine aggregate concrete of the same grade or one higher grade than the floor is used. After pouring material conveying opening concrete 19, curing to the design strength, and removing material conveying opening bottom formwork 18, cement-based permeable crystalline waterproof coating 20 is brushed on the interface between material conveying opening concrete 19 and floor concrete 15. Brushing interface agent 17 before pouring, using micro-expansion fine aggregate concrete when pouring, and brushing cement-based permeable crystalline waterproof coating 20 after pouring, can form a stable and reasonable internal and external waterproof structure as a whole, avoiding leakage.

[0047] As shown, Figure 1 , Figures 4 to 6 Floor bottom formwork support and material conveying opening bottom formwork support both use support frame 13, top support 12, main furring 11 and secondary furring 10 arranged from bottom to top in sequence.

[0048] In the device, the fast and easy closing net on each side of the outer sleeve 1 is used to make the reserved steel bars 8 by extending the floor steel bars 7, and the fast and easy closing net itself is used as the forming surface of the material conveying port, so that the concrete around the material conveying port does not need to be chiseled after the floor is poured, the chiseling process is avoided, and the labor cost is greatly reduced; in the device, the upper wood ring 2 can be used as the installation point of the temporary cover 14 of the material conveying port, and the material conveying port can be temporarily closed and protected without damaging the floor; in the device, the inner support cylinder 4, the upper wood ring 2, the middle partition block 5 and the lower partition ring 6 can provide sufficient support for the upper, middle and lower parts of the outer sleeve 1 to avoid slurry leakage, and can also ensure the length of the reserved steel bars 8 to avoid the deviation of the outer sleeve 1 during the pouring of the floor concrete 15; in the device, the middle partition block 5 is installed in a distributed manner to avoid the reserved steel bars 8 when being installed with the inner support cylinder 4, and the lower partition ring 6 is installed in an independent manner to avoid interference with the reserved steel bars 8 when being installed with the inner support cylinder 4.

[0049] The embodiments described above are part of the embodiments of the present application, rather than all the embodiments. The detailed description of the embodiments of the present application is not intended to limit the scope of the claimed application, but only represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the present application.

Claims

1. A floor deck access construction apparatus, characterized by: The device comprises an outer sleeve, an inner supporting sleeve, an upper wooden ring, a middle partition block, and a lower partition ring. The size of the outer sleeve matches the size of the material conveying opening. The fast and easy closing net is used as the forming surface of the material conveying opening and is used for the extension of the floor steel bar to form the reserved steel bar. The size of the inner supporting sleeve matches the size of the reserved steel bar. The inner supporting sleeve is used to directly support the reserved steel bar and indirectly provide the inner support for the outer sleeve. The upper wooden ring is made of wood and is annular. The outer edge of the upper wooden ring is larger than the outer sleeve. The outer edge of the upper wooden ring is provided with a groove. The upper wooden ring is used to support the inner supporting sleeve and form the installation point of the temporary cover of the material conveying opening. The middle partition block is provided with the length of the reserved steel bar. The middle partition block is used to support the inner supporting sleeve and form the installation point of the temporary cover of the material conveying opening. The lower partition ring is annular and is independent of other components. The lower partition ring is used to support the inner supporting sleeve and form the installation point of the temporary cover of the material conveying opening.

2. A method of constructing a floor deck access, characterized by, The device is based on the floor material conveying opening construction device of claim 1. The following steps are used: S1) Install the floor bottom mold support, the floor bottom mold, and the floor steel bar. The floor bottom mold and the floor steel bar are provided with openings at the material conveying opening position. The opening of the floor bottom mold matches the size of the material conveying opening. The size of the opening of the floor steel bar is the size of the reserved steel bar. S2) Install the floor material conveying opening construction device. First, install the outer sleeve. The fast and easy closing net of the outer sleeve is used for the extension of the floor steel bar to form the reserved steel bar. The lower end of the outer sleeve is supported on the floor bottom mold support and is in contact with the inner wall of the opening of the floor bottom mold. Then, install the lower partition ring. The lower partition ring is supported on the floor bottom mold support and is in contact with the inner wall of the lower end of the outer sleeve. Then, install the inner supporting sleeve. The inner supporting sleeve is supported on the floor bottom mold support and is in contact with the reserved steel bar. The lower end of the inner supporting sleeve is in contact with the inner wall of the lower partition ring. The middle of the inner supporting sleeve is in contact with the inner wall of the outer sleeve through the middle partition block. The upper end of the inner supporting sleeve is in contact with the upper end of the outer sleeve through the groove of the upper wooden ring. S3) Pour the floor concrete. S4) After the use of the material conveying opening, before the building is capped, the material conveying opening is temporarily closed and protected. The upper wooden ring is used as the installation point. The temporary cover of the material conveying opening is installed on the upper wooden ring. S5) After the building is capped, the material conveying opening is closed. The temporary cover of the material conveying opening, the inner supporting sleeve, the upper wooden ring, the middle partition block, and the lower partition ring are removed. The material conveying opening bottom mold support and the material conveying opening bottom mold are installed. The material conveying opening steel bar is connected with the reserved steel bar. Then, the material conveying opening concrete is poured.

3. The floor deck hopper construction method according to claim 2, wherein: The floor bottom mold support and the material conveying opening bottom mold support are provided with a supporting frame, a top support, a main keel, and a secondary keel from bottom to top.

4. The floor deck hopper construction method as claimed in claim 2, wherein: In step S2), the outer sleeve is provided with a rubber sealing strip at the outer side of the lower end of the outer sleeve. The outer sleeve is in contact with the inner wall of the opening of the floor bottom mold through the rubber sealing strip. The outer sleeve is provided with a rubber sealing strip at the inner side of the upper end of the outer sleeve. The outer sleeve is in contact with the groove of the upper wooden ring through the rubber sealing strip.

5. The floor deck hatchway construction method according to claim 2, wherein: In step S4), the temporary cover of the material conveying opening is fixed on the upper wooden ring through a rivet.

6. The floor deck hatchway construction method according to claim 2, wherein: In step S5), when the upper wooden ring is removed, wood chips are not left in the pouring range of the material conveying opening.

7. The floor deck hopper construction method according to claim 2, wherein: In step S5), when the temporary cover of the material conveying opening, the inner supporting cylinder, the upper wood ring, the middle partition block and the lower partition ring are removed, no workers are allowed to be under the material conveying opening.

8. The floor deck hatchway construction method according to claim 2, wherein: In step S5), before the concrete of the material conveying opening is poured, interface agent is brushed on the forming surface of the material conveying opening, and the interface agent is cement slurry mixed with waterproof powder.

9. The floor deck hatchway construction method according to claim 2, wherein: In step S5), when the concrete of the material conveying opening is poured, micro-expansion fine aggregate concrete of the same grade as the floor or one higher grade is used.

10. The floor deck hatchway construction method according to claim 2, wherein: In step S5), after the concrete of the material conveying opening is poured, cured to the design strength, and the bottom mold of the material conveying opening is removed, the interface between the concrete of the material conveying opening and the concrete of the floor is brushed with cement-based penetrating crystalline waterproof coating.

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