Finished post-casting belt

Abstract

The finished post-cast strip comprises a semi-enclosed groove body formed by full argon arc welding of stainless steel, steel bars on the floor slab, steel bars under the floor slab, a rubber waterstop and a concrete shrinkage compensation angle, wherein the top two ends of the semi-enclosed groove body are respectively provided with end heads extending outward, the bottom two ends of the semi-enclosed groove body are respectively provided with concrete shrinkage compensation angles, and the height of the semi-enclosed groove body is equal to the thickness of the floor slab, and insertion holes are provided on the semi-enclosed groove body. After the steel bars on the floor slab and the steel bars under the floor slab are symmetrically inserted into the semi-enclosed groove body through the insertion holes, the rubber waterstop is sealed on the insertion holes. The present invention is suitable for construction of bottom plates, top plates, floor slabs, shear walls and other parts, and can effectively solve the problems existing in the traditional post-cast strip construction. It is convenient to obtain materials and process, has standard lathe flow operation, and is easy to install. It can effectively eliminate all common quality problems of traditional post-cast strips and can effectively reduce construction costs.

Description

Technical Field

[0001] The invention relates to the technical field of building construction, in particular to a finished post-cast strip. Background Art

[0002] The traditional post-casting bottom plate, top plate, floor plate, shear wall and other parts have the following shortcomings:

[0003] 1. The construction process is complicated, and the processing of steel bars and wire mesh is time-consuming. At the same time, the installation process requires a high degree of cooperation with the corresponding team;

[0004] 2. The secondary chiseling of the traditional post-casting bottom plate, top plate, floor plate, shear wall and other parts after construction is completed is time-consuming and wastes a lot of manpower and financial resources;

[0005] 3. Traditional post-cast strips require secondary formwork in roof, floor, shear wall and other parts after reaching the age, which wastes materials and manpower. Summary of the invention

[0006] The technical problem solved by the present invention is to provide a finished post-cast strip to solve the problems in the above-mentioned background technology.

[0007] The technical problem solved by the present invention is achieved by adopting the following technical solutions:

[0008] The finished post-casting strip of the beam comprises a semi-enclosed groove body formed by full welding of stainless steel by argon arc welding, steel bars on the floor slab, steel bars under the floor slab, a rubber water stop and a concrete shrinkage compensation angle, wherein the top two ends of the semi-enclosed groove body are respectively provided with end heads extending outward, the bottom two ends of the semi-enclosed groove body are respectively provided with concrete shrinkage compensation angles, and the height of the semi-enclosed groove body is equal to the thickness of the floor slab, and an interlacing hole is provided on the semi-enclosed groove body, and after the steel bars on the floor slab and the steel bars under the floor slab are symmetrically interlaced on the semi-enclosed groove body through the interlacing holes, the rubber water stop is sealed on the interlacing holes;

[0009] The interpenetrating holes are symmetrically arranged on the stainless steel of the semi-enclosed groove body;

[0010] The concrete shrinkage compensation angle extends 20 cm outward from the bottom of the semi-enclosed groove body, and the concrete shrinkage compensation angle is 30° to 45°;

[0011] The installation method of the finished beam post-casting strip is as follows:

[0012] 1) After the construction drawings are reviewed and approved, measure the width and length of the post-casting strips, the thickness of the floor slab, the spacing and specifications of the reinforcement in the floor slabs according to the requirements of the drawings, and prepare them for use. The diameter of the interlaced holes shall be increased by 2mm according to the reinforcement size in the drawings, and the construction drawings shall be made at the same spacing;

[0013] 2) After the floor slab formwork is installed, check the top slab extreme difference and flatness. If qualified, lay out the lines according to the drawing position, then insert the wall reinforcement according to the layout position, install the first finished post-cast strip at the bottom, remember that the stainless steel surface faces the water surface, put on the external wall horizontal reinforcement, hang it vertically and fix it with auxiliary welding such as steel pipes, and then install the second piece until it is 50cm below the top slab surface to form a semi-closed groove body. Before the upper floor slab reinforcement, install and fix it according to the ink line position. The argon arc welding overlap must be fully welded. After welding and installation, acceptance is carried out;

[0014] 3) After acceptance, the steel bars on the floor slab and the steel bars under the floor slab are symmetrically inserted through the insertion holes on the semi-enclosed groove body and the steel bars are tied. If the construction period is tight, the insertion construction can be carried out, but the finished products that have been welded and fixed should not be disturbed;

[0015] 4) Before the concealed acceptance of the steel bars on the floor slab and the steel bars under the floor slab, the rubber water stop strip must be used to block the insertion holes on the inside of the finished post-casting strip, and it is strictly forbidden for concrete mud water to flow into the finished post-casting strip. The inner formwork of the finished post-casting strip is reinforced with an independent formwork (to avoid secondary disassembly and assembly). After the concealed acceptance is qualified, the top is tightly sealed with a formwork;

[0016] 5) Pay attention to the order when pouring. If conditions permit, pour on both sides of the post-casting strip at the same time. Keep a safe distance of 300~500cm between the vibrating rod and the finished post-casting strip. Prevent the post-casting strip from being disturbed while ensuring that it is compacted. At the same time, pay attention that workers cannot step on the capping formwork during pouring and a dedicated person is on guard.

[0017] 6) After the maintenance reaches the age, the floor slab formwork is removed, the post-cast belt is returned to the top, the rear support is removed first, and the front support is removed later, and the top is topped up as the dismantling progresses. The spacing is the same as the spacing of the formwork plan. No formwork is required, only the wood on both sides is added to the top support to make it dense;

[0018] 7) When the design age of the post-cast joint is reached, open the covering formwork, remove the expanded rubber waterstop, dismantle one side of the beam and wall formwork, rinse it clean, and after acceptance, pouring can begin.

[0019] The finished post-cast strip of the bottom plate comprises a semi-enclosed groove body formed by full welding of stainless steel by argon arc welding, steel bars on the floor plate, steel bars under the floor plate, a rubber water stop and a concrete shrinkage compensation angle, wherein the top two ends of the semi-enclosed groove body are respectively provided with end heads extending outward, the bottom two ends of the semi-enclosed groove body are respectively provided with concrete shrinkage compensation angles, and the height of the semi-enclosed groove body is equal to the designed plate thickness, and an interlaced hole is provided on the semi-enclosed groove body, and after the steel bars on the floor plate and the steel bars under the floor plate are symmetrically interlaced on the semi-enclosed groove body through the interlaced holes, the rubber water stop is sealed on the interlaced holes;

[0020] The interpenetrating holes are symmetrically arranged on the stainless steel of the semi-enclosed groove body;

[0021] The concrete shrinkage compensation angle extends 20 cm outward from the bottom of the semi-enclosed groove body, and the concrete shrinkage compensation angle is 30° to 45°;

[0022] The installation method of the finished post-cast strip of the base plate is as follows:

[0023] 1) After the construction drawings are reviewed and approved, measure the width and length of the post-casting strips, the thickness of the floor slab, the spacing and specifications of the reinforcement in the floor slabs according to the requirements of the drawings, and prepare them for use. The diameter of the interlaced holes shall be increased by 2mm according to the reinforcement size in the drawings, and the construction drawings shall be made at the same spacing;

[0024] 2) After the waterproofing of the bottom slab cushion layer is completed and self-inspected, the lines are laid out according to the drawing position, and then the wall reinforcement is inserted according to the line-laying position, and the first piece of finished post-cast strip is installed. Remember that the stainless steel surface faces the water surface, and the horizontal reinforcement of the external wall is inserted. It is hung vertically and fixed with auxiliary welding such as steel pipes, and then the second piece is installed until 50cm below the top plate surface to form a semi-closed groove body. Before the reinforcement of the upper floor slab, it is installed and fixed according to the ink line position. The argon arc welding overlap must be fully welded. After welding and installation, acceptance is carried out;

[0025] 3) After acceptance, the steel bars on the floor slab and the steel bars under the floor slab are symmetrically inserted through the insertion holes on the semi-enclosed groove body and the steel bars are tied. If the construction period is tight, the insertion construction can be carried out, but the finished products that have been welded and fixed should not be disturbed;

[0026] 4) Before the concealed acceptance of the steel bars on the floor slab and the steel bars under the floor slab, the rubber water stop strip must be used to block the insertion holes on the inside of the finished post-casting strip to prevent concrete mud water from flowing into the finished post-casting strip. The inner formwork of the finished post-casting strip is reinforced with an independent formwork (to avoid secondary disassembly and assembly). After the concealed acceptance is qualified, the top of the finished post-casting strip is tightly sealed with a formwork;

[0027] 5) Pay attention to the order when pouring. If conditions permit, pour on both sides of the post-casting strip at the same time. Keep a safe distance of 300~500cm between the vibrating rod and the finished post-casting strip. Prevent the post-casting strip from being disturbed while ensuring that it is compacted. At the same time, pay attention that workers cannot step on the capping formwork during pouring and a dedicated person is on guard.

[0028] 6) When the design age of the post-casting strip is reached, open the cover formwork, remove the expanded rubber waterstop 4, dismantle one side of the beam and wall formwork, rinse it clean, and after acceptance, pouring can begin.

[0029] The finished post-cast strip of the exterior wall comprises a semi-enclosed groove body formed by full welding of stainless steel by argon arc welding, steel bars on the shear wall, steel bars under the shear wall, a rubber water stop and a concrete shrinkage compensation angle, wherein the top two ends of the semi-enclosed groove body are respectively provided with end heads extending outward, the bottom two ends of the semi-enclosed groove body are respectively provided with concrete shrinkage compensation angles, and the height of the semi-enclosed groove body is equal to the thickness of the shear wall, and an interlacing hole is provided on the semi-enclosed groove body, and after the steel bars on the shear wall and the steel bars under the shear wall are symmetrically interlaced on the semi-enclosed groove body through the interlacing holes, the rubber water stop is sealed on the interlacing holes;

[0030] The interpenetrating holes are symmetrically arranged on the stainless steel of the semi-enclosed groove body;

[0031] The concrete shrinkage compensation angle extends 20 cm outward from the bottom of the semi-enclosed groove body, and the concrete shrinkage compensation angle is 30° to 45°;

[0032] The installation method of the finished post-casting strip of the exterior wall is as follows:

[0033] 1) After the construction drawings are reviewed and approved, measure the width and length of the post-casting strips, the thickness of the floor slab, the spacing and specifications of the reinforcement in the floor slabs according to the requirements of the drawings, and prepare them for use. The diameter of the interlaced holes shall be increased by 2mm according to the reinforcement size in the drawings, and the construction drawings shall be made at the same spacing;

[0034] 2) After the bottom plate reinforcement is tied and self-inspected, the line is laid out according to the drawing position, and then the external wall reinforcement is inserted first according to the line-laying position, and the finished post-cast strip is installed from bottom to top, with the water-facing side facing outwards. The first piece of the finished post-cast strip at the bottom is installed, and the external wall horizontal reinforcement is inserted. It is hung vertically and fixed with auxiliary welding such as steel pipes, and then the second piece is installed until 50cm below the top plate surface to form a semi-enclosed groove body. Before the upper shear wall, it is installed and fixed according to the ink line position. The argon arc welding overlap must be fully welded. After welding and installation are completed, acceptance is carried out;

[0035] 3) After acceptance, the upper and lower steel bars of the shear wall are symmetrically inserted through the insertion holes on the semi-enclosed groove body and the steel bars are tied. If the construction period is tight, the insertion construction can be carried out, but the finished products that have been welded and fixed cannot be disturbed;

[0036] 4) Before the concealed acceptance of the steel bars on the shear wall and the steel bars under the shear wall, the rubber water stop strip must be used to block the insertion holes on the inside of the finished post-casting strip. It is strictly forbidden for concrete mud water to flow into the finished post-casting strip. The inner formwork of the finished post-casting strip is reinforced with an independent formwork (to avoid secondary disassembly and assembly). After the concealed acceptance is qualified, the top is tightly sealed with a formwork;

[0037] 5) Pay attention to the order when pouring. If conditions permit, pour on both sides of the post-casting strip at the same time. Keep a safe distance of 300~500cm between the vibrating rod and the finished post-casting strip. Prevent the post-casting strip from being disturbed while ensuring that it is compacted. At the same time, pay attention that workers cannot step on the capping formwork during pouring and a dedicated person is on guard.

[0038] 6) When the design age of the post-casting joint is reached, open the covering formwork, remove the expanded rubber waterstop, reinforce the covering formwork, and after acceptance, pouring can begin.

[0039] The finished post-cast strip of the internal shear wall comprises a trough body, a rubber water stop, an insertion hole, steel bars on the shear wall and steel bars under the shear wall, which are made of stainless steel fully welded by argon arc welding, wherein the top and bottom ends of the trough body are respectively provided with end caps extending outwards, and the height of the trough body is equal to the thickness of the shear wall, and the insertion hole is provided on the trough body. After the steel bars on the shear wall and the steel bars under the shear wall are symmetrically inserted on the trough body through the insertion hole, the rubber water stop is sealed on the insertion hole;

[0040] The through holes are symmetrically arranged on the stainless steel of the tank body.

[0041] Beneficial effects:

[0042] 1) The present invention is applicable to the construction of bottom plates, top plates, floor plates, shear walls and other parts, and can effectively solve the problems existing in the traditional post-casting belt construction;

[0043] 2) The present invention is easy to obtain materials and process, has standard lathe assembly line operation, is easy to install, and can effectively eliminate all common quality problems of traditional post-casting strips;

[0044] 3) Compared with the traditional post-casting strip, the present invention effectively reduces the construction cost, reducing the installation fee by 5-10 yuan / m, the chiseling and cleaning fee by 35-45 yuan / m, and the secondary formwork fee by 30-40 yuan / m;

[0045] 4) Advantages of the present invention in roof construction: fast on-site assembly and welding, no need for excessive cooperation from other teams, only template installation and acceptance are required; Advantage 2: no need to chisel the wire mesh and clean up garbage; Advantage 3: after reaching the design age, only the top can be returned to the position for pouring, no need for secondary mold installation; Advantage 4: no quality risks such as mesh explosion, slurry leakage, rust, and leakage;

[0046] 5) Advantage 1 of the present invention for baseboard construction: fast on-site assembly and welding, no need for excessive cooperation from other teams, only the baseboard waterproofing needs to be completed and accepted; Advantage 2: no need to chisel the wire mesh and clean up the garbage; Advantage 3: no quality risks such as mesh explosion, slurry leakage, rust, and leakage;

[0047] 6) Advantages of the present invention in exterior wall construction: fast on-site assembly and welding, no need for excessive cooperation from other teams, only the vertical part of the exterior wall steel bars is needed; Advantage 2: no need to chisel the wire mesh and clean up garbage; Advantage 3: no quality risks such as mesh explosion, slurry leakage, rust, and leakage; Advantage 4: it can speed up the advancement and backfilling of exterior wall waterproofing construction, and the waterproofing roll can be directly attached to the water-facing surface of the stainless steel. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] Figure 1 It is a front view schematic diagram of the post-casting strip of the finished beam in the preferred embodiment of the present invention.

[0049] Figure 2 It is a schematic side view of the post-casting strip of the finished beam in a preferred embodiment of the present invention.

[0050] Figure 3 It is a schematic cross-sectional view of the post-casting strip of the finished beam in a preferred embodiment of the present invention.

[0051] Figure 4 It is a front view schematic diagram of the finished post-cast strip of the base plate in the preferred embodiment of the present invention.

[0052] Figure 5 It is a schematic side view of the post-cast strip of the finished base plate in a preferred embodiment of the present invention.

[0053] Figure 6 It is a schematic diagram of the structure of the rubber waterstop strip of the finished post-cast strip of the base plate in the preferred embodiment of the present invention.

[0054] Figure 7 It is a front view schematic diagram of the finished post-cast strip of the exterior wall in a preferred embodiment of the present invention.

[0055] Figure 8 It is a schematic diagram of the side elevation of the finished post-cast strip of the exterior wall in a preferred embodiment of the present invention.

[0056] Fig. 9 It is a schematic diagram of the installation of the finished post-cast strip in the preferred embodiment of the present invention.

[0057] Fig.10 The present invention is a flowchart of the installation of the post-cast strip of the finished beam in the preferred embodiment of the present invention.

[0058] Fig.11 The figure is a flow chart for installing the post-cast strip of the finished base plate in a preferred embodiment of the present invention.

[0059] Fig.12 The present invention is a flowchart of the installation of the finished post-cast strip of the exterior wall in a preferred embodiment of the present invention.

[0060] Fig.13 It is a front view schematic diagram of the finished post-cast strip of the internal shear wall in a preferred embodiment of the present invention.

[0061] Fig.14 It is a schematic diagram of the side elevation of the finished post-cast strip of the internal shear wall in a preferred embodiment of the present invention. DETAILED DESCRIPTION

[0062] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below with reference to specific diagrams.

[0063] Example 1

[0064] See also Figures 1 to 3 The finished post-casting strip of the beam comprises a semi-enclosed groove body formed by full welding of stainless steel 1 by argon arc welding, steel bars 2 on the floor slab, steel bars 3 under the floor slab, a rubber water stop 4, a concrete shrinkage compensation angle 5 and an insertion hole 6, wherein the top two ends of the semi-enclosed groove body are respectively provided with end heads extending outward, the bottom two ends of the semi-enclosed groove body are respectively provided with concrete shrinkage compensation angles 5, and the height of the semi-enclosed groove body is equal to the thickness of the floor slab, and the insertion hole 6 is provided on the semi-enclosed groove body, after the steel bars 2 on the floor slab and the steel bars 3 under the floor slab are symmetrically inserted on the semi-enclosed groove body through the insertion hole 6, the rubber water stop 4 is sealed on the insertion hole 6;

[0065] The through holes 6 are symmetrically arranged on the stainless steel 1 of the semi-enclosed groove body;

[0066] The concrete shrinkage compensation angle 5 extends outward by 20 cm from the bottom of the semi-enclosed groove body, and the concrete shrinkage compensation angle 5 is 30° to 45°;

[0067] Installation method of post-casting strip of finished beam, such as Fig.10 As shown, the specific steps are as follows:

[0068] 1) After the construction drawings are reviewed and approved, measure the width and length of the post-casting strip, the thickness of the floor slab, the spacing and specifications of the reinforcement in the floor slab according to the requirements of the drawings, and prepare them for use. It is best to make them into 2 meters to 3 meters per piece. The insertion holes 6 are drilled with an increase of 2mm in diameter according to the reinforcement size in the drawings, and the construction drawings are made at the same spacing;

[0069] 2) After the floor slab formwork is installed, check the top slab extreme difference and flatness. If qualified, lay out the lines according to the drawing position, then insert the wall reinforcement according to the layout position, install the first finished post-cast strip at the bottom, remember that the stainless steel 1 side faces the water surface, wear the external wall horizontal reinforcement, hang it vertically and fix it with auxiliary welding such as steel pipes, and then install the second piece until it is 50cm below the top slab surface to form a semi-closed groove body. Before the upper floor slab reinforcement, install and fix it according to the ink line position (it can be fixed with universal glue or iron nails, and it is forbidden to pull iron wire). Note that the argon arc welding overlap length (20~30cm) must be fully welded, and acceptance is carried out after welding and installation are completed;

[0070] 3) After acceptance, the steel bars 2 on the floor slab and the steel bars 3 under the floor slab are symmetrically inserted through the insertion holes on the semi-enclosed groove body and the steel bars are tied. If the construction period is tight, the insertion construction can be carried out, but the finished products that have been welded and fixed should not be disturbed;

[0071] 4) Before the concealed acceptance of the steel bars 2 on the floor slab and the steel bars 3 under the floor slab, the rubber water stop 4 must be used to block the insertion holes 6 on the inside of the finished post-casting strip, and it is strictly forbidden for concrete mud water to flow into the finished post-casting strip. The inner formwork of the finished post-casting strip is reinforced with an independent formwork (to avoid secondary disassembly and assembly). After the concealed acceptance is qualified, the top is tightly sealed with a formwork (it is recommended to use a complete old formwork);

[0072] 5) Pay attention to the order when pouring. If conditions permit, pour on both sides of the post-casting strip at the same time. Keep a safe distance of 300~500cm between the vibrating rod and the finished post-casting strip. Prevent the post-casting strip from being disturbed while ensuring that it is compacted. At the same time, pay attention that workers cannot step on the capping formwork during pouring and a dedicated person is on guard.

[0073] 6) After the maintenance reaches the age, the floor slab formwork is removed, the post-cast belt is returned to the top, the rear support is removed first, and the front support is removed later, and the top is topped up as the dismantling progresses. The spacing is the same as the spacing of the formwork plan. No formwork is required, only the wood on both sides is added to the top support to make it dense;

[0074] 7) After reaching the design age of the post-casting strip, open the cover formwork, remove the expanded rubber water stop 4 (whether to remove; depends on the situation), remove one side of the beam wall formwork, rinse it clean, and pour after acceptance;

[0075] The structure after installation is as follows Fig. 9 As shown, the finished post-cast strip 91, the cast-in-place beam and slab 92, the stainless steel plate 93, the top support 94, the adjustable support seat 95, the wheel buckle scaffolding 96, the bottom plate 97, the adjustable base 98, the pillar 99 and the wooden plank 100, both ends of the finished post-cast strip 91 are embedded in the cast-in-place beam and slab 92, the bottom of the finished post-cast strip 91 is placed on the stainless steel plate 93, the stainless steel plate 93 is placed on the wooden plank 100, the wooden plank 100 is fixed to the pillar 99 through the top support 94, the adjustable support seat 95 and the wheel buckle scaffolding 96 are installed on the pillar 99, and the bottom of the pillar 99 is fixed to the bottom plate 97 through the adjustable base 98.

[0076] Example 2

[0077] See also Figures 4 to 6The finished post-cast strip of the bottom plate comprises a semi-enclosed groove body formed by full welding of stainless steel 1 by argon arc welding, steel bars 2 on the floor plate, steel bars 3 under the floor plate, a rubber water stop 4, a concrete shrinkage compensation angle 5 and an interlaced hole 6, wherein the top two ends of the semi-enclosed groove body are respectively provided with end heads extending outward, the bottom two ends of the semi-enclosed groove body are respectively provided with concrete shrinkage compensation angles 5, and the height of the semi-enclosed groove body is equal to the thickness of the designed plate, and an interlaced hole 6 is provided on the semi-enclosed groove body, after the steel bars 2 on the floor plate and the steel bars 3 under the floor plate are symmetrically interlaced on the semi-enclosed groove body through the interlaced hole 6, the rubber water stop 4 is sealed on the interlaced hole 6;

[0078] The through holes 6 are symmetrically arranged on the stainless steel 1 of the semi-enclosed groove body;

[0079] The concrete shrinkage compensation angle 5 extends outward by 20 cm from the bottom of the semi-enclosed groove body, and the concrete shrinkage compensation angle 5 is 30° to 45°;

[0080] Installation method of finished post-cast strip of base plate, such as Fig.11 As shown, the specific steps are as follows:

[0081] 1) After the construction drawings are reviewed and approved, measure the width and length of the post-casting strip, the thickness of the floor slab, the spacing and specifications of the reinforcement in the floor slab according to the requirements of the drawings, and prepare them for use. It is best to make them into 2 meters to 3 meters per piece. The interlaced holes are drilled with an increase of 2mm in diameter according to the reinforcement size in the drawings, and the construction drawings are made at the same spacing;

[0082] 2) After the waterproofing of the bottom plate cushion layer is completed and self-inspected, the lines are laid out according to the drawing position, and then the wall reinforcement is inserted according to the line-laying position, and the first piece of the finished post-casting strip is installed. Remember that the stainless steel 1 side faces the water surface, and the external wall horizontal reinforcement is inserted. It is hung vertically and fixed with auxiliary welding such as steel pipes, and then the second piece is installed until 50cm below the top plate surface to form a semi-closed groove body. Before the reinforcement of the upper floor plate, it is installed and fixed according to the ink line position (it can be fixed with universal glue or iron nails, and it is forbidden to pull iron wire). Note that the argon arc welding overlap length (20~30cm) must be fully welded, and acceptance is carried out after welding and installation are completed;

[0083] 3) After acceptance, the steel bars 2 on the floor slab and the steel bars 3 under the floor slab are symmetrically inserted through the insertion holes on the semi-enclosed groove body and the steel bars are tied. If the construction period is tight, the insertion construction can be carried out, but the finished products that have been welded and fixed should not be disturbed;

[0084] 4) Before the concealed acceptance of the steel bars 2 on the floor slab and the steel bars 3 under the floor slab, the rubber water stop 4 must be used to block the insertion holes 6 on the inside of the finished post-casting strip, and it is strictly forbidden for concrete mud water to flow into the finished post-casting strip. The inner formwork of the finished post-casting strip is reinforced with an independent formwork (to avoid secondary disassembly and assembly). After the concealed acceptance is qualified, the top of the finished post-casting strip is tightly sealed with a formwork (it is recommended to use a complete old formwork);

[0085] 5) Pay attention to the order when pouring. If conditions permit, pour on both sides of the post-casting strip at the same time. Keep a safe distance of 300~500cm between the vibrating rod and the finished post-casting strip. Prevent the post-casting strip from being disturbed while ensuring that it is compacted. At the same time, pay attention that workers cannot step on the capping formwork during pouring and a dedicated person is on guard.

[0086] 6) When the design age of the post-casting strip is reached, open the cover formwork, remove the expanded rubber waterstop 4 (whether to remove it depends on the situation), remove one side of the beam and wall formwork, rinse it clean, and after acceptance, pouring can begin.

[0087] Example 3

[0088] See also Figures 7-8 The finished post-cast strip of the exterior wall comprises a semi-enclosed groove body formed by full welding of stainless steel 1 by argon arc welding, a rubber water stop 4, a concrete shrinkage compensation angle 5, an insertion hole 6, a shear wall upper steel bar 7 and a shear wall lower steel bar 8, wherein the top two ends of the semi-enclosed groove body are respectively provided with end heads extending outward, the bottom two ends of the semi-enclosed groove body are respectively provided with concrete shrinkage compensation angles 5, and the height of the semi-enclosed groove body is equal to the thickness of the shear wall, and the insertion hole 6 is provided on the semi-enclosed groove body, after the shear wall upper steel bar 7 and the shear wall lower steel bar 8 are symmetrically inserted on the semi-enclosed groove body through the insertion hole 6, the rubber water stop 4 is sealed on the insertion hole 6;

[0089] The through holes 6 are symmetrically arranged on the stainless steel 1 of the semi-enclosed groove body;

[0090] The concrete shrinkage compensation angle 5 extends outward by 20 cm from the bottom of the semi-enclosed groove body, and the concrete shrinkage compensation angle 5 is 30° to 45°;

[0091] Installation method of finished post-cast strip of exterior wall, such as Fig.12 As shown, the specific steps are as follows:

[0092] 1) After the construction drawings are reviewed and approved, measure the width and length of the post-casting strip, the thickness of the floor slab, the spacing and specifications of the reinforcement in the floor slab according to the requirements of the drawings, and prepare them for use. It is best to make them into 2 meters to 3 meters per piece. The insertion holes 6 are drilled with an increase of 2mm in diameter according to the reinforcement size in the drawings, and the construction drawings are made at the same spacing;

[0093] 2) After the bottom plate reinforcement is tied and self-checked, the line is laid out according to the drawing position, and then the external wall reinforcement is inserted first according to the line-laying position, and the finished post-cast strip is installed from bottom to top, with the water-facing side facing outwards. The first piece of the finished post-cast strip at the bottom is installed, and the external wall horizontal reinforcement is inserted. It is hung vertically and fixed with auxiliary welding such as steel pipes, and then the second piece is installed until 50cm below the top plate surface to form a semi-enclosed groove body. Before the upper shear wall, it is installed and fixed according to the ink line position (it can be fixed with universal glue or iron nails, and it is forbidden to pull iron wire). Note that the argon arc welding overlap length (20~30cm) must be fully welded, and acceptance is carried out after welding and installation are completed;

[0094] 3) After acceptance, the upper steel bars 7 of the shear wall and the lower steel bars 8 of the shear wall are symmetrically inserted through the insertion holes on the semi-enclosed groove body and the steel bars are tied. If the construction period is tight, the insertion construction can be carried out, but the finished products that have been welded and fixed should not be disturbed;

[0095] 4) Before the concealed acceptance of the steel bars 7 on the shear wall and the steel bars 8 under the shear wall, the rubber water stop 4 must be used to block the insertion holes 6 on the inside of the finished post-casting belt, and it is strictly forbidden for concrete mud water to flow into the finished post-casting belt. The inner side of the finished post-casting belt is reinforced with an independent template (to avoid secondary disassembly and assembly). After the concealed acceptance is qualified, the top is tightly sealed with a template (it is recommended to use a complete old template);

[0096] 5) Pay attention to the order when pouring. If conditions permit, pour on both sides of the post-casting strip at the same time. Keep a safe distance of 300~500cm between the vibrating rod and the finished post-casting strip. Prevent the post-casting strip from being disturbed while ensuring that it is compacted. At the same time, pay attention that workers cannot step on the capping formwork during pouring and a dedicated person is on guard.

[0097] 6) When the design age of the post-cast strip is reached, open the cover formwork, remove the expanded rubber waterstop 4 (whether to remove it depends on the situation), and reinforce the cover formwork. After acceptance, pouring can begin.

[0098] Example 4

[0099] See also Figures 13-14 The finished post-cast strip of the inner shear wall comprises a trough body, a rubber water stop 4, an insertion hole 6, a steel bar 7 on the shear wall and a steel bar 8 under the shear wall, which are formed by argon arc welding of stainless steel 1, wherein the ends of the top and bottom of the trough body are respectively provided with end heads extending outward, and the height of the trough body is equal to the thickness of the shear wall, and the insertion hole 6 is provided on the trough body. After the steel bars 7 on the shear wall and the steel bars 8 under the shear wall are symmetrically inserted on the trough body through the insertion hole 6, the rubber water stop 4 is sealed on the insertion hole 6;

[0100] The insertion holes 6 are symmetrically arranged on the stainless steel 1 of the tank body.

Claims

1. The finished post-cast strip comprises a semi-enclosed groove body formed by full welding of stainless steel by argon arc welding, characterized in that: The two ends of the top of the semi-closed groove body are respectively provided with end caps extending outward, and the two ends of the bottom of the semi-closed groove body are respectively provided with concrete shrinkage compensation angles, and the concrete shrinkage compensation angles extend outward 20 cm from the bottom of the semi-closed groove body, and the concrete shrinkage compensation angles are 30°~45°; the height of the semi-closed groove body is equal to the thickness of the floor slab, and insertion holes for symmetrical insertion of the steel bars on the floor slab and the steel bars under the floor slab are provided on the semi-closed groove body.

2. The finished post-cast strip according to claim 1, characterized in that: Applied to the base plate, the height of the semi-enclosed groove body of the finished post-cast strip of the base plate is equal to the designed plate thickness.

3. The finished post-cast strip according to claim 1, characterized in that: Applied in the exterior wall, the height of the semi-enclosed groove body of the exterior wall finished post-cast strip is equal to the thickness of the shear wall.

4. The finished post-cast strip according to any one of claims 1 to 3, characterized in that: The interpenetrating holes are symmetrically arranged on the stainless steel of the semi-enclosed groove body.

5. The finished post-cast strip according to any one of claims 1 to 3, characterized in that: The insertion holes are sealed with rubber waterstops.

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