CN109707090B - Pre-buried dislocation preventing structure under laminated plate reinforced band plate and construction method - Google Patents
Pre-buried dislocation preventing structure under laminated plate reinforced band plate and construction method Download PDFInfo
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- CN109707090B CN109707090B CN201910158362.6A CN201910158362A CN109707090B CN 109707090 B CN109707090 B CN 109707090B CN 201910158362 A CN201910158362 A CN 201910158362A CN 109707090 B CN109707090 B CN 109707090B
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- 238000010276 construction Methods 0.000 title claims abstract description 12
- 239000004567 concrete Substances 0.000 claims abstract description 71
- 230000000149 penetrating effect Effects 0.000 claims abstract description 10
- 239000002002 slurry Substances 0.000 claims abstract description 9
- 238000011065 in-situ storage Methods 0.000 claims description 13
- 238000007789 sealing Methods 0.000 claims description 13
- 229910000831 Steel Inorganic materials 0.000 claims description 10
- 239000010959 steel Substances 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 6
- 230000008569 process Effects 0.000 claims description 6
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims description 4
- 238000005452 bending Methods 0.000 claims description 4
- 239000002390 adhesive tape Substances 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 239000004570 mortar (masonry) Substances 0.000 claims description 3
- 239000003973 paint Substances 0.000 claims description 3
- 238000004080 punching Methods 0.000 claims description 3
- 230000007306 turnover Effects 0.000 claims description 3
- 230000003014 reinforcing effect Effects 0.000 claims description 2
- 230000002787 reinforcement Effects 0.000 claims 3
- 230000008439 repair process Effects 0.000 description 3
- 230000001680 brushing effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The invention relates to an embedded error-proofing table structure under a reinforced band plate of a laminated slab, which comprises a cast-in-place concrete template, wherein the two sides of the top of the cast-in-place concrete template in the width direction are respectively provided with a prefabricated laminated slab, the prefabricated laminated slab is provided with a plurality of embedded bolts along the length direction of the prefabricated laminated slab, each embedded bolt comprises a hook head bolt penetrating through the prefabricated laminated slab, one end of each hook head bolt penetrating through the prefabricated laminated slab is bent, the other end of each hook head bolt penetrates through the prefabricated laminated slab to be close to the cast-in-place concrete template, each embedded bolt further comprises a fastening nut detachably connected to one end of each hook head bolt close to the cast-in-place concrete template, a screw rod penetrates through the cast-in-place concrete template, and the screw rod penetrates through the cast-in-place concrete template to be connected to the fastening nut. The structure can strengthen the connection between the prefabricated laminated slab and the cast-in-place concrete template, and avoids the condition of slab staggering and slurry leakage between the prefabricated laminated slab and the cast-in-place concrete. The invention further provides a construction method of the embedded error-proofing table structure under the laminated plate reinforced band plate.
Description
Technical Field
The invention relates to the technical field of constructional engineering, in particular to an embedded dislocation preventing structure under a reinforced band plate of a laminated plate.
Background
In the construction process of building engineering, the laminated slab is often adopted for assembling the floor slab, the laminated slab is an assembled integral floor slab formed by laminating precast slabs and cast-in-situ reinforced concrete, the integrated slab in the form of the laminated slab has good integrity, high rigidity and good shock resistance, templates can be saved, the upper surface and the lower surface of the slab are smooth, decoration of a facing layer is facilitated, and the laminated slab is suitable for high-rise buildings and large-bay buildings with high overall rigidity requirements.
The main disadvantage of the laminated slab is that the joint of the reinforcing band is easy to be dislocated, leaked in the pouring process in the construction process. The conditions of staggered platform, slurry leakage and the like are avoided, the requirements on quality and construction quality of workers are high, and more manpower resource investment and labor hour consumption are required. And if the condition of staggered platform leakage is occurred, the slurry needs to be trimmed and polished in a later period, and the rigid structure of the laminated slab can be damaged.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides an embedded dislocation preventing structure under a reinforced band plate of a laminated slab, which can strengthen the connection between a prefabricated laminated slab and a cast-in-place concrete template, enable the joint to be smooth and tight, avoid the situation of dislocation leakage between the prefabricated laminated slab and the cast-in-place concrete, and reduce later repair work.
In order to achieve the above purpose, the embedded error-proofing table structure under the reinforced band plate of the laminated slab comprises a cast-in-place concrete template, wherein the two sides of the top width direction of the cast-in-place concrete template are respectively provided with a prefabricated laminated slab, a plurality of embedded bolts are arranged on the prefabricated laminated slab along the length direction of the prefabricated laminated slab, each embedded bolt comprises a hook head bolt penetrating through the prefabricated laminated slab, one end of each hook head bolt penetrating out of the prefabricated laminated slab is bent, the other end of each embedded bolt penetrates through the prefabricated laminated slab to be close to the cast-in-place concrete template, each embedded bolt further comprises a fastening nut detachably connected to one end of each hook head bolt close to the cast-in-place concrete template, a screw rod penetrates through the cast-in-place concrete template, and the screw rod penetrates through the cast-in-place concrete template to be connected to the fastening nut.
Further, the fastening nut is of a cone structure, the area of one end of the fastening nut, close to the prefabricated laminated slab, is smaller than that of one end, close to the cast-in-place concrete template, of the fastening nut, internal threads extending along the vertical direction are arranged in the fastening nut, external threads matched with the internal threads are arranged at one end, close to the fastening nut, of the hook head bolt, and external threads matched with the internal threads are arranged at one end, close to the fastening nut, of the screw rod.
Further, a positioning steel pipe is arranged on one side, far away from the prefabricated laminated slab, of the cast-in-place concrete template, and a screw penetrates through the cast-in-place concrete template and is fixed on the positioning steel pipe.
Further, a sealing band is arranged between the prefabricated laminated slab and the cast-in-place concrete template, and the sealing band adopts a sealing strip or a double-sided adhesive tape.
Further, the length of the bending section of the hook head bolt is more than or equal to 200mm.
Further, the length of the hook head bolt penetrating out of the prefabricated laminated slab is more than or equal to 200mm.
Further, reinforcing steel bars are arranged between the prefabricated superimposed sheets on the two sides at the top of the cast-in-place concrete template.
Further, the distance between adjacent embedded bolts is less than or equal to 600mm.
The invention also provides a construction method for the embedded fault-tolerant structure under the laminated slab reinforced band plate, which comprises the following steps:
s1: pouring a prefabricated laminated slab in a component factory, and pre-burying a hook head bolt and a fastening nut in the production process of the prefabricated laminated slab, wherein the position line through of the fastening nut is ensured to be orderly when the prefabricated laminated slab is pre-buried;
s2: punching holes on the cast-in-situ concrete template at a construction site, and fixing the cast-in-situ concrete template on a positioning steel pipe by using a matched screw rod;
s3: a gasket sealing band is added at the joint of the joint edge lower opening of the prefabricated laminated slab and the cast-in-place concrete template to prevent slurry leakage;
s4: pouring concrete into the cast-in-place concrete template, after the concrete pouring is finished and the requirement of the form removal strength is met, firstly removing the screw rod before the form removal, then removing the fastening screw cap after the cast-in-place concrete template is removed, and taking care of protecting the screw rod and the fastening screw cap during the removal process so as to be convenient for turnover and reuse;
s5: after the fastening screw cap is removed, the left screw hole is firstly protected by brushing antirust paint on the screw hole, and then is filled with high-grade mortar and smoothed.
The embedded anti-dislocation structure under the reinforced band plate of the superimposed sheet can strengthen the connection between the prefabricated superimposed sheet and the cast-in-place concrete template, enables the joint to be smooth and tight, avoids the situation of dislocation and slurry leakage between the prefabricated superimposed sheet and the cast-in-place concrete, and can reduce later repair work.
Drawings
The invention is further described and illustrated below with reference to the accompanying drawings.
FIG. 1 is a schematic view of the entire structure of an embedded anti-dislocation under a reinforced band plate of a laminated slab according to a preferred embodiment of the present invention;
FIG. 2 is an enlarged view at A in FIG. 1;
fig. 3 is a schematic structural view of a pre-buried bolt for use in a structure of a pre-buried fault-tolerant stage under a reinforced band plate of a laminated plate according to a preferred embodiment of the present invention.
Reference numerals: 1. casting a concrete template in situ; 2. prefabricating a laminated plate; 3. embedding bolts; 31. a hook bolt; 32. fastening a screw cap; 33. a screw; 4. positioning the steel pipe; 5. a sealing tape; 6. reinforcing steel bars.
Detailed Description
The technical solution of the present invention will be more clearly and completely explained by the description of the preferred embodiments of the present invention with reference to the accompanying drawings.
As shown in fig. 1 and 2, the embedded error-proofing structure under a laminated slab reinforced band plate in the preferred embodiment of the invention comprises a cast-in-place concrete template 1, wherein prefabricated laminated slabs 2 are respectively arranged on two sides of the top width direction of the cast-in-place concrete template 1, a sealing band 5 for preventing slurry leakage is arranged between the prefabricated laminated slabs 2 and the cast-in-place concrete template 1, and the sealing band 5 adopts a sealing strip or a double-sided adhesive tape. The top of the cast-in-place concrete template 1 is positioned between the prefabricated laminated plates 2 at two sides and is provided with reinforcing steel bars 6. When the prefabricated laminated slab 2 is assembled, concrete is poured on the cast-in-place concrete template 1 and the concrete is not passed through the prefabricated laminated slab 2, so that a post-cast strip with a certain thickness is formed.
As shown in fig. 1 and 2, a plurality of embedded bolts 3 are arranged on the prefabricated laminated slab 2 along the length direction, and the distance between every two adjacent embedded bolts 3 is less than or equal to 600mm. The embedded bolt 3 comprises a hook bolt 31 penetrating into the prefabricated laminated slab 2, one end of the hook bolt 31 penetrating out of the prefabricated laminated slab 2 is bent by 90 degrees, namely, a bending section extends in the horizontal direction, the length of the bending section is greater than or equal to 200mm, and the height of the hook bolt 31 penetrating out of one end of the prefabricated laminated slab 2 is also greater than or equal to 200mm. The other end of the hook bolt 31 penetrates the prefabricated laminated slab 2 to approach the cast-in-place concrete form 1. The embedded bolt 3 further comprises a fastening nut 32 detachably connected to one end of the hook bolt 31 close to the cast-in-place concrete form 1, the fastening nut 32 is cone-shaped, the tip is arranged upwards, and the fastening nut 32 is embedded into the prefabricated laminated slab 2.
Referring to fig. 3, an internal thread extending in a vertical direction is provided in the fastening nut 32, an external thread matched with the internal thread is provided at one end of the hook bolt 31 close to the fastening nut 32, a screw 33 is provided in the cast-in-place concrete form 1 in a penetrating manner, an external thread matched with the internal thread is provided at one end of the screw 33 close to the fastening nut 32, and one end of the screw 33 penetrates through the cast-in-place concrete form 1 to be connected to the fastening nut 32. One side of the cast-in-place concrete form 1, which is far away from the prefabricated laminated slab 2, is provided with a positioning steel pipe 4, and the other end of the screw 33 penetrates through the cast-in-place concrete form 1 and is fixed on the positioning steel pipe 4.
The invention relates to a construction method for a pre-buried anti-dislocation structure under a laminated plate reinforced band plate, which comprises the following steps:
s1: pouring a prefabricated laminated slab 2 in a component factory, pre-burying a hook bolt 31 and a fastening nut 32 in the production process of the prefabricated laminated slab 2, and ensuring that the position line of the fastening nut 32 is communicated in order during pre-burying;
s2: punching holes on the cast-in-situ concrete template 1 at a construction site, and fixing the cast-in-situ concrete template 1 on the positioning steel pipe 4 by using a matched screw 33;
s3: a sealing belt 5 is added at the joint of the joint edge lower opening of the prefabricated laminated slab 2 and the joint of the cast-in-place concrete template 1 to prevent slurry leakage;
s4: pouring concrete into the cast-in-place concrete form 1, after the concrete pouring is finished and the requirement of the form removal strength is met, firstly removing the screw 33 before the form removal, then removing the form, and then removing the fastening screw cap 32 after the cast-in-place concrete form 1 is removed, wherein the screw 33 and the fastening screw cap 32 are carefully protected in the removing process so as to be convenient for turnover and reuse;
s5: after the fastening screw cap 32 is removed, the left screw hole is firstly painted with antirust paint for protection, and then is filled with high-grade mortar and smoothed.
The embedded anti-dislocation structure under the reinforced band plate of the superimposed sheet can strengthen the connection between the prefabricated superimposed sheet 2 and the cast-in-place concrete template 1, enables the joint to be smooth and tight, avoids the situation of dislocation and slurry leakage between the prefabricated superimposed sheet 2 and the cast-in-place concrete, and can reduce later repair work.
The above detailed description is merely illustrative of the preferred embodiments of the present invention and is not intended to limit the scope of the present invention. Various modifications, substitutions and improvements of the technical scheme of the present invention will be apparent to those skilled in the art from the description and drawings provided herein without departing from the spirit and scope of the invention. The scope of the invention is defined by the claims.
Claims (9)
1. The utility model provides a pre-buried mistake proofing platform structure under superimposed sheet reinforcing band plate, includes cast in situ concrete template (1), cast in situ concrete template (1) top width direction's both sides are equipped with prefabricated superimposed sheet (2) respectively, its characterized in that, be equipped with a plurality of pre-buried bolts (3) along its length direction on prefabricated superimposed sheet (2), pre-buried bolts (3) are including wearing to establish gib head bolt (31) in prefabricated superimposed sheet (2), the one end of prefabricated superimposed sheet (2) is buckled is worn out in gib head bolt (31), and the other end pierces through prefabricated superimposed sheet (2) and is close cast in situ concrete template (1), pre-buried bolts (3) are still including detachably connecting fastening nut (32) that are close concrete template one end at gib head bolt (31), wear to be equipped with screw rod (33) in cast in situ concrete template (1), screw rod (33) pass cast in situ concrete template (1) and connect on fastening nut (32).
2. The embedded error-proofing table structure under a laminated slab reinforced band plate according to claim 1, wherein the fastening screw cap (32) is of a cone structure, the area of one end of the fastening screw cap (32) close to the prefabricated laminated slab (2) is smaller than the area of one end close to the cast-in-place concrete template (1), an internal thread extending along the vertical direction is arranged in the fastening screw cap (32), an external thread matched with the internal thread is arranged at one end of the hook head bolt (31) close to the fastening screw cap (32), and an external thread matched with the internal thread is arranged at one end of the screw rod (33) close to the fastening screw cap (32).
3. The embedded error-proofing structure under a reinforced band plate of a laminated slab according to claim 1, wherein a positioning steel pipe (4) is arranged on one side of the cast-in-place concrete template (1) far away from the prefabricated laminated slab (2), and the screw (33) penetrates through the cast-in-place concrete template (1) and is fixed on the positioning steel pipe (4).
4. The embedded error-proofing structure under the laminated slab reinforced band plate as claimed in claim 1, wherein a sealing band (5) is further arranged between the prefabricated laminated slab (2) and the cast-in-place concrete template (1), and the sealing band (5) adopts a sealing strip or a double-sided adhesive tape.
5. The under-board embedded fault-tolerant architecture of the laminated slab reinforcement board according to claim 1, wherein the length of the bending section of the hook bolt (31) is greater than or equal to 200mm.
6. The under-board embedded fault-tolerant architecture of the laminated slab reinforcement board according to claim 1, wherein the length of the hook bolt (31) penetrating out of the prefabricated laminated slab (2) is greater than or equal to 200mm.
7. The embedded error-proofing structure under a laminated slab reinforced band plate as claimed in claim 1, wherein reinforcing steel bars (6) are arranged between the prefabricated laminated slabs (2) on two sides at the top of the cast-in-place concrete template (1).
8. An underlaying embedded fault-tolerant architecture for a laminated slab reinforced band plate as claimed in claim 1, wherein the distance between adjacent embedded bolts (3) is 600mm or less.
9. A construction method for an under-board embedded fault-tolerant structure of a laminated slab reinforcement board according to any one of claims 1 to 8, comprising the steps of:
s1: pouring a prefabricated laminated slab (2) in a component factory, and pre-burying a hook head bolt (31) and a fastening nut (32) in the production process of the prefabricated laminated slab (2), wherein the pre-burying is required to ensure that the position line of the fastening nut (32) is communicated in order;
s2: punching holes on the cast-in-situ concrete template (1) on a construction site, and fixing the cast-in-situ concrete template (1) on the positioning steel pipe (4) by using a matched screw rod (33);
s3: a sealing belt (5) is added at the joint of the joint edge lower opening of the prefabricated laminated slab (2) and the joint of the cast-in-place concrete template (1) to prevent slurry leakage;
s4: pouring concrete into the cast-in-place concrete template (1), and after the concrete pouring is finished and the requirement of the form removal strength is met, firstly removing the screw (33) before the form removal, then removing the fastening screw cap (32) after the cast-in-place concrete template (1) is removed, and paying attention to protecting the screw (33) and the fastening screw cap (32) in the removing process so as to be convenient for turnover and reuse;
s5: after the fastening screw cap (32) is removed, the left screw thread hole is firstly painted with antirust paint for protection, and then is filled with high-grade mortar and smoothed.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910158362.6A CN109707090B (en) | 2019-03-01 | 2019-03-01 | Pre-buried dislocation preventing structure under laminated plate reinforced band plate and construction method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910158362.6A CN109707090B (en) | 2019-03-01 | 2019-03-01 | Pre-buried dislocation preventing structure under laminated plate reinforced band plate and construction method |
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| Publication Number | Publication Date |
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| CN109707090A CN109707090A (en) | 2019-05-03 |
| CN109707090B true CN109707090B (en) | 2024-03-19 |
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2019
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