A device and construction method for improving the construction quality of a plate strip and a plate bottom of a laminated slab

Abstract

The application discloses a device for improving the construction quality of a plate strip and a plate bottom of a laminated slab, characterized in that the device comprises a supporting system and a plurality of plate strip adjusting devices, the supporting system comprises a plurality of horizontal rods, a plurality of vertical rods and a top support threadedly connected to the top of the vertical rods, and a plurality of laminated slabs are laid on the supporting system; the plate strip adjusting device comprises two rows of bases, the base is fixed on the horizontal rod, a bolt is threadedly connected above the base, a first plate strip aluminum formwork is arranged at the top of the bolt, the height of the first plate strip aluminum formwork is adjusted by adjusting the height of the bolt in the base, the plate strip adjusting devices on each straight line are replaced by a broken line to form an arch, and the side edges of the lower surface of the laminated slab abut against the side edges of the upper surface of the plate strip adjusting device. The application greatly simplifies the correction difficulty of the formwork supporting system and effectively guarantees the process precision of the formwork supporting system.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of building construction, in particular to a device and construction method for improving the construction quality of a laminated slab belt and slab bottom. BACKGROUND

[0002] Most of the floor surfaces use laminated slabs, and in the construction process, the flatness of the laminated slab belt is poor, and problems such as misalignment, poor flatness of the entire floor bottom, and grout leakage often occur. After investigation, such problems are common construction problems of laminated slabs and urgent construction difficulties to be solved.

[0003] The main reasons for such problems are two aspects. One is that after the prefabricated laminated slab is completed, the deformation of the supporting system caused by compression affects the slab bottom elevation. The other is that the arching of the supporting system after the prefabricated laminated slab is hoisted is not reasonably considered, resulting in problems such as grout leakage and the flatness of the slab bottom not meeting the requirements when the site cast concrete is cast and the supporting system is removed later. SUMMARY

[0004] To solve the above-mentioned construction difficulties of laminated slabs, improve the construction quality of the laminated slab belt, improve the overall flatness of the laminated slab bottom, and prevent the occurrence of problems such as grout leakage, the present application provides a device and construction method for improving the construction quality of a laminated slab belt and slab bottom.

[0005] On the one hand, the device for improving the construction quality of a laminated slab belt and slab bottom provided by the present application adopts the following technical solution, comprising:

[0006] A supporting system comprising a plurality of horizontal rods and a plurality of vertical rods, and a top support threadedly connected to the top of the vertical rod, a plurality of laminated slabs laid on the supporting system, and the top support abutting against the lower surface of the laminated slab;

[0007] A plurality of belt adjusting devices, the belt adjusting device comprising two rows of bases, the base being fixed to the horizontal rod, a bolt being threadedly connected above the base, the top of the bolt being provided with a first belt aluminum formwork, the bottom surface of the first belt aluminum formwork having a hole for the bolt to be inserted, and the diameter of the hole being larger than the diameter of the bolt, the height of the first belt aluminum formwork being adjusted by adjusting the height of the bolt in the base, the belt adjusting device being located below the gap between two laminated slabs, and the upper end surface of the belt adjusting device abutting against the lower end surface of the laminated slab, the belt adjusting devices on each straight line being distributed in a cross shape, and the belt adjusting devices on each straight line being replaced by a broken line instead of a curve to form an arch.

[0008] Further, the plurality of top supports form a pre-arch of the supporting system by adjusting the height.

[0009] Further, the base is fixedly connected with a gripper at the bottom, and the gripper is fixed to the horizontal rod of the supporting system.

[0010] Further, the first aluminum plate strip template upper surface is provided with a second aluminum plate strip template.

[0011] Further, the second aluminum plate strip template has two through holes, and a bolt rubber cap is arranged at the through hole.

[0012] Further, the second aluminum plate strip template has two rows of grooves arranged on the two sides, and compressed rubber is arranged in the grooves.

[0013] Further, the composite slab is cambered at the center of the floor surface, and the camber height is less than 1.5‰ of the camber span.

[0014] Further, the plate strip adjusting device has a distance between every two supports in each column, which is equal to the distance between every two horizontal rods of the support system, and 2-3 supports are arranged in each column.

[0015] In another aspect, the application provides a construction method of a device for improving the construction quality of a composite slab plate strip and plate bottom, comprising:

[0016] Step one: complete the erection of the support system and the installation of the plate strip adjusting device; and preliminarily review the ground elevation of the completed support system and plate strip adjusting device;

[0017] Step two: hoist the composite slab, review the installation position of the composite slab, and ensure the accuracy of the installation position;

[0018] Step three: adjust the plate strip adjusting device on the upper part of the composite slab, and adjust the elevation of the plate strip adjusting device through the bolt; the center of the floor surface is cambered, and the camber height is less than 1.5‰ of the camber span; the plate strip adjusting device completes the camber through the way of replacing the curve with a broken line;

[0019] Step four: review the elevation of the adjusted composite slab forming surface through the level, and ensure that the position of the composite slab is cambered correctly;

[0020] Step five: check the lower support system again, tighten the loose jacks, and complete the acceptance of the formwork support system;

[0021] Step six: complete the binding and acceptance of the upper reinforcement, and pour the concrete.

[0022] Further, through experiments and on-site inspection, the camber parameters required by the support system after hoisting the composite slab and before pouring the concrete are obtained; after completing the hoisting of the composite slab, the support system is corrected according to the data obtained through on-site experiments and inspections, and the plate strip adjusting device is adjusted on the floor surface to appropriately camber, so as to ensure the final plate bottom flatness.

[0023] In summary, the present application includes at least one of the following beneficial technical effects:

[0024] 1. The use of plate strip adjusting device and the setting of reverse jacking bolt in the adjusting device solves the problem of limited field of view and simplifies the correction difficulty of the support system. Through the setting of the reverse jacking bolt, the construction personnel can stand on the upper part of the superimposed slab to operate, which is more convenient. At the same time, the use of the level instrument for synchronous monitoring greatly simplifies the correction difficulty of the formwork support system and effectively ensures the process precision of the formwork support system;

[0025] 2. The use of support system load secondary splitting technology, through experiments and field tests, the required camber parameters of the support system after the hoisting of the prefabricated superimposed slab and before the pouring of concrete are obtained, which solves the quality problem of poor flatness of the slab bottom after the final formation of the superimposed slab construction. By decomposing the load borne by the superimposed slab construction support system into two processes, one is the load generated during the hoisting of the prefabricated superimposed slab, and the other is the load generated during the reinforcement binding and concrete pouring; after the hoisting of the prefabricated superimposed slab is completed, the support system is corrected according to the data obtained from the field experiments and tests, and appropriate camber is performed to ensure the final flatness of the slab bottom.

[0026] 3. The use of steel superimposed slab plate strip adjusting device and the use of reverse bolt jacking device to level the superimposed slab effectively ensures the smoothness of the superimposed slab on both sides of the plate strip and overcomes the appearance quality defects of the plate strip part caused by the insufficient steel of the wooden formwork;

[0027] 4. The use of the technology from part to whole solves the problem of difficult adjustment of the support system. Through the accurate adjustment of the plate strip part, the installation process precision of the superimposed slab basically meets the requirements, and only the loose jacking of the lower part of the superimposed slab needs to be tightened, which greatly reduces the construction difficulty. The use of plate strip formwork segmented camber technology and the addition of compressible rubber ensure the close superposition of the plate strip adjusting device and the flat superimposed slab, which solves the technical problem of superimposed slab plate strip leakage. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 is a partial structure schematic diagram of an embodiment of the present application;

[0029] Figure 2 is a front view of the plate strip adjusting device of the embodiment of the present application;

[0030] Figure 3 is a side view of the plate strip adjusting device of the embodiment of the present application;

[0031] Figure 4 is the distribution of the plate strip adjusting device of the embodiment of the present application on the floor surface;

[0032] Figure 5is a schematic diagram of the arching of the plate strip adjusting device of the embodiment of the present application.

[0033] Reference signs: 1, cross rod; 2, vertical rod; 3, top support; 4, laminated plate; 5, steel pipe; 6, plate strip adjusting device; 7, base; 8, bolt; 9, first plate strip aluminum template; 10, second plate strip aluminum template; 11, compressed rubber; 12, bolt rubber cap. DETAILED DESCRIPTION

[0034] The following will be described in detail with reference to the accompanying drawings Figures 1-5 The present application is further described in detail.

[0035] Embodiment 1

[0036] With reference to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , the embodiment of the present application discloses a device for improving the construction quality of plate strip and plate bottom of laminated plate, which comprises a support system and a plurality of plate strip adjusting devices 6. The support system comprises a plurality of cross rods 1 and a plurality of vertical rods 2, the plurality of cross rods 1 and the plurality of vertical rods 2 are welded, and the support system is provided with a top support 3 which is threadedly connected to the top of the vertical rod 2. A plurality of laminated plates 4 are laid on the support system, and the top support 3 abuts against the lower surface of the laminated plate 4. The plate strip adjusting device 6 comprises two rows of bases 7 which are fixed on the cross rod 1. The upper part of the base 7 is threadedly connected with a bolt 8. The top of the bolt 8 is provided with a first plate strip aluminum template 9. The bottom surface of the first plate strip aluminum template 9 is provided with a hole for inserting the bolt 8. The diameter of the hole is larger than the diameter of the bolt 8. The height of the first plate strip aluminum template 9 is adjusted by adjusting the height of the bolt 8 in the base 7. The plate strip adjusting device 6 is located below the gap between two laminated plates 4, and the upper end surface of the plate strip adjusting device 6 abuts against the lower end surface of the laminated plate 4. With reference to Figure 5 , a plurality of vertical plate strip adjusting devices 6, i.e. d1-d10 and a plurality of horizontal plate strip adjusting devices 6, are distributed in a cross shape at the center of the floor surface. The plate strip adjusting devices 6 on each straight line form an arch in the form of a broken line instead of a curve. The formed arch is shown in Figure 5 .

[0037] The pre-arching of the support system and the plate strip adjusting device 6 enables the plurality of laminated plates 4 to form a pre-arching on the floor surface. Since the height of the support system can only be adjusted at the lower part of the laminated plate 4, it is difficult to adjust the support system after the laminated plate 4 is laid. Therefore, the plate strip adjusting device 6 is arranged so that the worker can adjust the height from the upper part of the floor surface. The bolt rubber cap 12 is opened, the height of the bolt 8 is adjusted, the plate strip adjusting device 6 forms a certain inclination angle, the arching requirement is met, the whole pre-arching system is more perfect, and the construction quality is improved.

[0038] With reference to Figure 1, multiple top support 3 by adjusting the height of the support system pre-arch. Top support 3 inside the steel pipe 5, steel pipe 5 with the interface board 4.

[0039] Referring to Figure 2 , Figure 3 , the base 7 bottom fixedly connected with the chuck, fixed to the support system through the chuck horizontal bar 1.

[0040] Referring to Figure 2 , Figure 3 , the first plate belt aluminum template 9 upper surface is provided with the second plate belt aluminum template 10. The first plate belt aluminum template 9 is a hollow steel structure, the second plate belt aluminum template 10 is laid on the top, which helps to avoid slurry leakage.

[0041] Referring to Figure 2 , the second plate belt aluminum template 10 has two through holes, and the through holes are provided with bolt rubber caps 12. The bolt rubber cap 12 can be removed to adjust the bolt.

[0042] Referring to Figure 2 , Figure 3 , the second plate belt aluminum template 10 is provided with two rows of grooves on the two sides, and the grooves are provided with compression rubber 11. The compression rubber 11 helps the interface board 4 and the second plate belt aluminum template to be more closely attached, and is more firmly fixed, which helps to avoid slurry leakage and reduces labor and economic cost.

[0043] Referring to Figure 4 , Figure 5 , the interface board 4 is arched with the floor surface center, and the arching height is less than 1.5‰ of the arching span.

[0044] Referring to Figure 1 , Figure 2 , the plate belt adjusting device 6 is arranged every two base 7, and the distance between every two base 7 is the distance between every two horizontal bar 1 of the support system.

[0045] Embodiment 2

[0046] Referring to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , the construction method of the device for improving the construction quality of the interface board plate belt and the plate bottom provided by the application comprises:

[0047] Step one: complete the erection of the support system and the installation of the plate belt adjusting device 6; the ground elevation of the completed support system and the plate belt adjusting device 6 is preliminarily reviewed;

[0048] Step two: hoisting the interface board 4, and reviewing the installation position of the interface board 4 to ensure the accuracy of the installation position;

[0049] Step three: the person adjusts the plate strip adjusting device 6 on the upper part of the laminated slab 4, and the plate strip adjusting device 6 is adjusted in height through the bolt 8; the slab surface center is used to arch, and the arching height is less than 1.5‰ of the arching span, and the plate strip adjusting device 6 completes the arching through the way of replacing the curve with a broken line;

[0050] Step four: the height of the formed surface of the adjusted laminated slab 4 is rechecked through the level, so as to ensure that the position arching of the laminated slab 4 is correct and accurate;

[0051] Step five: the lower support system is checked again, the loose jacking 3 is tightened, and the acceptance of the formwork support system is completed;

[0052] Step six: the upper reinforcement is bound and accepted, and the concrete is poured.

[0053] Through the decomposition of the load borne by the laminated slab 4 construction support system into two processes, one is the load generated in the laminated slab 4 hoisting process, and the other is the load generated in the reinforcement binding and concrete pouring process, the arching parameters required by the support system after the laminated slab 4 is hoisted and before the concrete is poured are obtained through experiments and on-site inspection; after the laminated slab is hoisted, the support system is corrected according to the data obtained through on-site experiments and inspection, and the plate strip adjusting device 6 is adjusted on the slab surface to properly arch, so as to ensure the final slab bottom flatness.

[0054] The application adopts the part-to-whole technology, and solves the problem of difficult adjustment of the support system. Through the accurate adjustment of the plate strip part, the laminated slab installation process precision basically meets the requirements, only the loose jacking of the laminated slab needs to be tightened, which greatly reduces the construction difficulty. The plate strip formwork segmented arching technology is adopted, and the compressible rubber is added, so as to ensure that the plate strip adjusting device is closely overlapped with the flat laminated slab, and the technical problem of laminated slab plate strip leakage is solved.

[0055] The above are the preferred embodiments of the application, and do not limit the protection scope of the application, so: all equivalent changes made according to the structure, shape, principle of the application should be covered in the protection scope of the application.

Claims

1. A device for improving the construction quality of a board strip and a board bottom of a laminated board, characterized in that, include: A support system comprising a plurality of horizontal bars and a plurality of vertical bars, and a top bracket threadedly connected to the top of the vertical bars, a plurality of laminated plates being laid on the support system, and the top bracket abutting against the lower surface of the laminated plates; Multiple plate strip adjustment devices, each comprising two rows of bases, each of which is fixed to a crossbar, each of which is threaded with a bolt, a first plate strip aluminum template being provided on top of the bolt, a hole being provided on the bottom surface of the first plate strip aluminum template for inserting the bolt, and the diameter of the hole being larger than the diameter of the bolt, and the height of the first plate strip aluminum template being adjusted by adjusting the height of the bolt in the base, the plate strip adjustment device being located below the gap between the two composite plates, and the upper end surface of the plate strip adjustment device being in contact with the lower end surface of the composite plate, the multiple plate strip adjustment devices being distributed in a cross pattern in the center of the floor surface, and the plate strip adjustment devices on each straight line forming an arch by replacing a curve with a broken line; A second aluminum plate template is provided on the upper surface of the first aluminum plate template. The second aluminum plate template has two through holes. Bolt rubber caps are provided at the through holes. The bolt rubber caps are opened to adjust the bolt height.

2. The device for improving the construction quality of the plate belt and the plate bottom of the laminated board according to claim 1, characterized in that: The plurality of jacks are height-adjusted to form a pre-arch of the support system.

3. The device for improving the construction quality of the plate belt and the plate bottom of the laminated board according to claim 1, characterized in that: A gripping clamp is fixedly connected to the bottom of the base and is fixed to the crossbar of the support system through the gripping clamp.

4. The device for improving the construction quality of the plate belt and the plate bottom of the laminated board according to claim 1, characterized in that: Two rows of grooves are provided on both sides of the second plate strip aluminum template, and compression rubber is provided in the grooves.

5. The device for improving the construction quality of the plate belt and the plate bottom of the laminated board according to claim 1, characterized in that: The composite slab is arched at the center of the floor surface, and the arch height is less than 1.5‰ of the arch span.

6. The device for improving the construction quality of the plate belt and the plate bottom of the laminated board according to claim 1, characterized in that: The distance between every two bases in each row of the plate and strip adjustment device is the distance between every two cross bars of the support system, and 2-3 bases are set in each row.

7. A construction method of the device for improving the construction quality of the panel belt and the panel bottom according to any one of claims 1 to 6, characterized in that, include: Step 1: Complete the erection of the support system and the installation of the plate and belt adjustment device; Conduct a preliminary review of the completed support system and the ground elevation of the plate and strip adjustment device; Step 2: Hoist the composite board and review the installation position of the composite board to ensure the installation position is accurate; Step 3: A person adjusts the plate belt adjustment device on the upper part of the composite slab. The plate belt adjustment device adjusts the elevation through bolts; the arch is formed at the center of the floor surface, and the arch height is less than 1.5‰ of the arch span. The plate belt adjustment device completes the arch by replacing the curve with a broken line; Step 4: Use a level to check the adjusted elevation of the laminated board forming surface to ensure that the position of the laminated board is correct; Step 5: Check the lower support system again, tighten the loose supports, and complete the acceptance of the formwork support system; Step 6: Complete the binding and acceptance of the upper steel bars and proceed with the pouring of concrete.

8. The construction method of the device for improving the construction quality of the plate belt and the plate bottom of the laminated board according to claim 7, characterized in that: Through experiments and on-site inspections, the arching parameters required for the support system after the composite slab is hoisted and before concrete pouring are obtained; after the composite slab is hoisted, the support system is modified according to the data obtained from on-site experiments and inspections, and the slab belt adjustment device is adjusted on the floor surface to perform appropriate arching to ensure the final flatness of the slab bottom.

Images