CN113944240A - Fixed prefabricated structure for sealing basement outer wall post-cast strip in advance and construction method thereof - Google Patents
Fixed prefabricated structure for sealing basement outer wall post-cast strip in advance and construction method thereof Download PDFInfo
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- CN113944240A CN113944240A CN202111123681.7A CN202111123681A CN113944240A CN 113944240 A CN113944240 A CN 113944240A CN 202111123681 A CN202111123681 A CN 202111123681A CN 113944240 A CN113944240 A CN 113944240A
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/66—Sealings
- E04B1/665—Sheets or foils impervious to water and water vapor
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/66—Sealings
- E04B1/68—Sealings of joints, e.g. expansion joints
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/66—Sealings
- E04B1/68—Sealings of joints, e.g. expansion joints
- E04B1/6803—Joint covers
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/14—Conveying or assembling building elements
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- Civil Engineering (AREA)
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- Electromagnetism (AREA)
- Mechanical Engineering (AREA)
- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
Abstract
The invention discloses a fixed prefabricated structure for closing a post-cast strip of an outer wall of a basement in advance and a construction method thereof, wherein the fixed prefabricated structure for closing the post-cast strip of the outer wall of the basement in advance comprises a prefabricated cover plate, a fixing mechanism for fixing the prefabricated cover plate and the outer wall, a bottom plate positioned at the bottom of the prefabricated cover plate and a base mortar positioned on the upper surface of the bottom plate; the setting of both ends arcwall face about the prefabricated apron makes the prefabricated apron left and right sides transition gently with the leading flank of outer wall respectively, and waterproofing membrane construction can directly be carried out to the later stage, has avoided waterproofing membrane negative and positive angle radian processing technology.
Description
Technical Field
The invention relates to the technical field of building construction, in particular to a fixed prefabricated structure for closing a post-cast strip of an outer wall of a basement in advance and a construction method thereof.
Background
The post-cast strip is a concrete strip reserved at the corresponding position of a foundation slab, a wall and a beam according to the design or construction specification requirement for preventing the occurrence of harmful cracks possibly generated due to the uneven self shrinkage or the uneven settlement of a cast reinforced concrete structure in the building construction.
The retention width of the post-cast strip is generally 700-1000mm, the retention width is currently 800mm, 1000mm and 1200mm, and the width of the post-cast strip is generally 800mm on a construction site. The post-cast strip is divided into two types in design and action, one type is called a telescopic post-cast strip, and the other type is called a sedimentation post-cast strip. The telescopic post-cast strip is cast 2 months after the concrete is cast. And pouring the post-sedimentation pouring belt 2 months after the main body structure is capped. Because concrete pouring between the post-cast strip has the time requirement, the basement outer wall position need enclose in advance to keep off and seal to carry out outer wall outside waterproofing construction and backfill construction, create more operating space and construction road for the job site, the current outer wall post-cast strip seals conventional way in advance has two kinds: the method 1, the circular arc wall or the straight wall is built by the small concrete bricks, and the problems of low work efficiency, high labor cost, high material consumption and the like exist; the method 2 adopts masonry mortar, and the conventional prefabricated cover plate is used for sealing, but the work efficiency is only improved, but the prefabricated plate is not firmly fixed, the loosening is easily caused in the later backfilling process, certain lateral pressure is caused to the external waterproof coiled material, the damage to the waterproof is caused, and the leakage is easily caused.
Therefore, it is a problem worthy of research to provide a fixed prefabricated structure for closing a post-cast strip of an outer wall of a basement in advance, which is firm in installation and can directly perform waterproofing coiled material construction in the later stage, and a construction method thereof.
Disclosure of Invention
The invention aims to provide a fixed prefabricated structure which is firm in installation and can be used for closing a post-cast strip of an outer wall of a basement in advance and a construction method thereof, wherein the post-cast strip of the outer wall of the basement can be directly constructed by waterproof coiled materials at the later stage.
The purpose of the invention is realized as follows:
the utility model provides a fixed prefabricated construction that is used for basement outer wall post-cast strip to seal in advance, including being used for shutoff outer wall post-cast strip and a plurality of prefabricated apron of supreme setting down, still including being used for making prefabricated apron and outer wall fixed establishment, be located the bottom plate of prefabricated apron bottom, be located the upper surface of bottom plate and with prefabricated apron bottom fixed connection's seat thick liquid, fixed establishment is including being located the waterproof pull rod of outer wall, with the tip fixed connection's of waterproof pull rod screw rod, being located the nut of screw rod tip, being located prefabricated apron and the through-hole that makes the screw rod pass, being located the recess of the front surface and the through-hole intercommunication of prefabricated apron, the nut is located the recess.
The fixing mechanisms are at least two and are respectively positioned on the left side and the right side of the outer wall post-cast strip.
The length of screw rod is 650~700mm, the tip of screw rod and the tip threaded connection of waterproof pull rod.
The prefabricated cover plate comprises a hollow plate, a positioning mechanism and arc-shaped surfaces, wherein a plurality of round holes are formed in the hollow plate, the positioning mechanism is positioned at the top and the bottom of the hollow plate, and the arc-shaped surfaces are positioned on the front side surfaces of the left end and the right end of the hollow plate.
The radius of the arc-shaped surface is equal to the thickness of the hollow plate, and the central angle corresponding to the arc-shaped surface is 90 degrees.
The positioning mechanism comprises a first positioning plate fixedly connected with the top of the hollow plate and a second positioning plate fixedly connected with the bottom of the hollow plate, and the height of the first positioning plate in the vertical direction is equal to the height of the second positioning plate in the vertical direction.
The front side face of the first positioning plate and the front side face of the hollow plate are on the same plane, the rear side face of the second positioning plate and the rear side face of the hollow plate are on the same plane, the distance between the rear side face of the first positioning plate and the rear side face of the hollow plate is equal to the distance between the front side face of the second positioning plate and the rear side face of the second positioning plate, and the distance between the front side face of the second positioning plate and the front side face of the hollow plate is equal to the distance between the front side face of the first positioning plate and the distance between the rear side face of the first positioning plate.
A construction method for a fixed prefabricated structure for closing a post-cast strip of an outer wall of a basement in advance comprises the following steps: step 1: fixing an outer wall template, pouring an outer wall and dismantling the template; step 2: after the position of the post-cast strip is cleaned up, a prefabricated cover plate is installed at the position of the post-cast strip; and step 3: after the prefabricated cover plate is installed, the prefabricated cover plate and the surface of the outer wall of the basement are cleaned simultaneously, and waterproof construction of the outer wall of the basement is conducted.
The basement outer wall template in step 1 adopts the syllogic stagnant water screw rod fixed, and first waterproof screw rod is 200mm high off the ground, and remaining vertical interval 500mm, treat basement outer wall concrete placement completion back, demolish template and syllogic stagnant water screw rod detachable part, make the waterproof pull rod stay in the outer wall of basement.
The specific operation of the step 2 is as follows: the method comprises the steps of prefabricating prefabricated cover plates in advance according to design, fixing the prefabricated cover plates from bottom to top in sequence, positioning two connected prefabricated cover plates in the vertical direction through a positioning mechanism, connecting the prefabricated cover plates with a waterproof pull rod reserved in an outer wall through a screw rod in a threaded manner, enabling a nut at the end part of the screw rod to be located in a groove, and enabling the rear end of the screw rod to penetrate through a through hole to be in threaded connection with a threaded hole in the end part of the waterproof pull rod.
Has the positive and beneficial effects that: the fixing mechanism is fixedly connected with the waterproof pull rod left in the wall body through the screw rod, so that the mounting firmness of the prefabricated cover plate is enhanced; the setting of both ends arcwall face about the prefabricated apron makes the prefabricated apron left and right sides transition gently with the leading flank of outer wall respectively, and waterproofing membrane construction can directly be carried out to the later stage, has avoided waterproofing membrane negative and positive angle radian processing technology.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a cross-sectional view taken along the line A-A;
FIG. 3 is a schematic structural view of a prefabricated cover panel according to the present invention;
FIG. 4 is a left side view of FIG. 3;
FIG. 5 is a bottom view of FIG. 3;
FIG. 6 is a schematic view of the screw and nut of the present invention;
in the figure, the following steps are carried out: prefabricated apron 1, fixed establishment 2, hollow plate 3, positioning mechanism 4, waterproof pull rod 5, screw rod 6, nut 7, recess 8, through-hole 9, first locating plate 10, second locating plate 11, arcwall face 12.
Detailed Description
The invention is further illustrated by the following figures and examples.
Example 1
As shown in figures 1, 2 and 6, the fixed prefabricated structure for closing the post-cast strip of the outer wall of the basement in advance comprises a plurality of prefabricated cover plates 1 which are used for blocking the post-cast strip of the outer wall and are arranged from bottom to top, a fixing mechanism 2 used for fixing the prefabricated cover plates 1 and the outer wall, a bottom plate positioned at the bottoms of the prefabricated cover plates 1, and a base mortar which is positioned on the upper surface of the bottom plate and is fixedly connected with the bottoms of the prefabricated cover plates 1, wherein the base mortar is made of C20 fine aggregate concrete with the thickness of 50mm, the length of the prefabricated cover plates 1 in the left and right directions is greater than that of the post-cast strip in the left and right directions, the length of the post-cast strip in the left and right directions is 800mm, the length of the prefabricated cover plates in the left and right directions is 1200mm, the length of the prefabricated cover plates in the vertical directions is 500mm, the length of the prefabricated cover plates 1 at the bottoms in the vertical directions is 400mm, the thickness of the prefabricated cover plates 1 in the front and back directions is 60mm, and back directions, and forth, and the fixing mechanism 2 comprises waterproof pull rods 5, and forth in the outer wall, The waterproof structure comprises a screw 6 fixedly connected with the end part of a waterproof pull rod 5, a nut 7 positioned at the end part of the screw 6, a through hole 9 positioned on the prefabricated cover plate 1 and allowing the screw to pass through, and a groove 10 positioned on the front surface of the prefabricated cover plate 1 and communicated with the through hole 9, wherein the nut 7 is positioned in the groove 8, so that the front side surface of the nut 7 and the front side surface of the prefabricated cover plate 1 are on the same plane, a waterproof coiled material is convenient to lay, namely, the screw 6 is fixedly connected with the waterproof pull rod 5 left in a wall body through concrete, and the installation firmness of the prefabricated cover plate 1 is enhanced; the two fixing mechanisms 2 are arranged, and the two fixing mechanisms 2 are respectively positioned on the left side and the right side of the outer wall post-cast strip. The length of the screw rod 6 is 650mm, and the end part of the screw rod 6 is in threaded connection with the end part of the waterproof pull rod 5.
Example 2
As shown in figures 1, 2 and 6, the fixed prefabricated structure for closing the post-cast strip of the outer wall of the basement in advance comprises a plurality of prefabricated cover plates 1 which are used for blocking the post-cast strip of the outer wall and are arranged from bottom to top, a fixing mechanism 2 used for fixing the prefabricated cover plates 1 and the outer wall, a bottom plate positioned at the bottoms of the prefabricated cover plates 1, and a base mortar which is positioned on the upper surface of the bottom plate and is fixedly connected with the bottoms of the prefabricated cover plates 1, wherein the base mortar is made of C20 fine aggregate concrete with the thickness of 50mm, the length of the prefabricated cover plates 1 in the left and right directions is greater than that of the post-cast strip in the left and right directions, the length of the post-cast strip in the left and right directions is 800mm, the length of the prefabricated cover plates in the left and right directions is 1200mm, the length of the prefabricated cover plates in the vertical directions is 500mm, the length of the prefabricated cover plates 1 at the bottoms in the vertical directions is 400mm, the thickness of the prefabricated cover plates 1 in the front and back directions is 60mm, and back directions, and forth, and the fixing mechanism 2 comprises waterproof pull rods 5, and forth in the outer wall, The waterproof structure comprises a screw 6 fixedly connected with the end part of a waterproof pull rod 5, a nut 7 positioned at the end part of the screw 6, a through hole 9 positioned on the prefabricated cover plate 1 and allowing the screw to pass through, and a groove 10 positioned on the front surface of the prefabricated cover plate 1 and communicated with the through hole 9, wherein the nut 7 is positioned in the groove 8, so that the front side surface of the nut 7 and the front side surface of the prefabricated cover plate 1 are on the same plane, a waterproof coiled material is convenient to lay, namely, the screw 6 is fixedly connected with the waterproof pull rod 5 left in a wall body through concrete, and the installation firmness of the prefabricated cover plate 1 is enhanced; the two fixing mechanisms 2 are arranged, and the two fixing mechanisms 2 are respectively positioned on the left side and the right side of the outer wall post-cast strip. The length of the screw rod 6 is 650mm, and the end part of the screw rod 6 is in threaded connection with the end part of the waterproof pull rod 5.
As shown in fig. 3 to 5, the prefabricated cover plate 1 includes a hollow plate 3, a positioning mechanism 4 located at the top and the bottom of the hollow plate 3, and an arc-shaped surface 12 located at the front side of each of the left and right ends of the hollow plate 3, wherein a plurality of round holes are formed in the prefabricated cover plate 1, the length direction of the round holes is the left and right direction, the round holes penetrate through the left and right direction of the hollow plate 3, and the weight of the prefabricated cover plate 1 is reduced due to the arrangement of the round holes. Positioning mechanism 4 makes the location that is located two adjacent hollow core slabs of vertical direction 3 quick, improves the efficiency of installation, the radius of arcwall face 12 equals with hollow core slab 3's thickness, and the central angle that arcwall face 12 corresponds is 90 for the direct gentle transition of later stage waterproofing membrane has avoided waterproofing membrane negative and positive angle radian processing technology, avoids later stage waterproofing membrane hollowing simultaneously, causes the infiltration hidden danger. The positioning mechanism 4 comprises a first positioning plate 10 fixedly connected with the top of the hollow plate 3 and a second positioning plate 11 fixedly connected with the bottom of the hollow plate 3, and the height of the first positioning plate 10 in the vertical direction is equal to the height of the second positioning plate 11 in the vertical direction. The front side of the first positioning plate 10 and the front side of the hollow plate 3 are on the same plane, the rear side of the second positioning plate 11 and the rear side of the hollow plate 3 are on the same plane, the distance between the rear side of the first positioning plate 10 and the rear side of the hollow plate 3 is equal to the distance between the front side of the second positioning plate 11 and the rear side of the second positioning plate 11, the distance between the front side of the second positioning plate 11 and the front side of the hollow plate 3 is equal to the distance between the front side of the first positioning plate 10 and the distance between the rear side of the first positioning plate 10, and the arc-shaped surface 12, the first positioning plate 10 and the second positioning plate 11 are integrally molded by pouring.
Example 3
A construction method for a fixed prefabricated structure for closing a post-cast strip of an outer wall of a basement in advance comprises the following steps: step 1: fixing an outer wall template, pouring an outer wall and dismantling the template; basement outer wall template adopts the syllogic stagnant water screw rod fixed, the syllogic stagnant water screw rod including the waterproof pull rod that is located the exterior wall, with waterproof pull rod left and right ends threaded connection's joint pull rod, the first waterproof screw rod that is located the bottom is 200mm high liftoff, all the other vertical interval 500mm, treat basement outer wall concrete placement completion back, demolish template and syllogic stagnant water screw rod and can dismantle the part, make waterproof pull rod stay in the exterior wall of basement, when the template was demolishd promptly, stay waterproof pull rod 5 in the exterior wall, will connect the pull rod and dismantle.
Step 2: after the position of the post-cast strip is cleaned up, a prefabricated cover plate is installed at the position of the post-cast strip; the specific operation is as follows: the method comprises the steps of prefabricating a prefabricated cover plate 1 in advance according to design, fixing the prefabricated cover plate 1 from bottom to top in sequence, positioning two connected prefabricated cover plates 1 in the vertical direction through a positioning mechanism 4, then connecting the prefabricated cover plates 1 with a waterproof pull rod 5 reserved in an outer wall through a screw 6 in a threaded manner, enabling a nut 7 at the end part of the screw 6 to be located in a groove 10, and enabling the rear end of the screw 6 to penetrate through a through hole 9 to be in threaded connection with the end part of the waterproof pull rod 5 through a threaded hole.
And step 3: after the prefabricated cover plate is installed, the prefabricated cover plate and the surface of the outer wall of the basement are cleaned simultaneously, and waterproof construction of the outer wall of the basement is conducted.
The fixing mechanism is fixedly connected with the waterproof pull rod left in the wall body through the screw rod, so that the mounting firmness of the prefabricated cover plate is enhanced; the setting of both ends arcwall face about the prefabricated apron makes the prefabricated apron left and right sides transition gently with the leading flank of outer wall respectively, and waterproofing membrane construction can directly be carried out to the later stage, has avoided waterproofing membrane negative and positive angle radian processing technology.
Claims (10)
1. The utility model provides a be used for basement outer wall post-cast strip closed fixed prefabricated construction in advance, including being used for shutoff outer wall post-cast strip and a plurality of prefabricated apron of supreme setting down, its characterized in that: still including being used for making prefabricated apron and the fixed establishment of outer wall, being located the bottom plate of prefabricated apron bottom, being located the upper surface of bottom plate and with prefabricated apron bottom fixed connection's base thick liquid, fixed establishment is including being located the waterproof pull rod of outer wall, with the screw rod of the tip fixed connection of waterproof pull rod, being located the nut of screw rod tip, being located prefabricated apron and making the through-hole that the screw rod passed, being located the recess of the front surface and the through-hole intercommunication of prefabricated apron, the nut is located the recess.
2. The fixed prefabricated structure for the early closing of the post-cast strip of the outer wall of the basement according to claim 1, characterized in that: the fixing mechanisms are at least two and are respectively positioned on the left side and the right side of the outer wall post-cast strip.
3. The fixed prefabricated structure for the early closing of the post-cast strip of the outer wall of the basement according to claim 1, characterized in that: the length of screw rod is 650~700mm, the tip of screw rod and the tip threaded connection of waterproof pull rod.
4. The fixed prefabricated structure for the early closing of the post-cast strip of the outer wall of the basement according to claim 1, characterized in that: the prefabricated cover plate comprises a hollow plate, a positioning mechanism and arc-shaped surfaces, wherein a plurality of round holes are formed in the hollow plate, the positioning mechanism is positioned at the top and the bottom of the hollow plate, and the arc-shaped surfaces are positioned on the front side surfaces of the left end and the right end of the hollow plate.
5. The fixed prefabricated construction for basement exterior wall post-cast strip early closing according to claim 4, characterized in that: the radius of the arc-shaped surface is equal to the thickness of the hollow plate, and the central angle corresponding to the arc-shaped surface is 90 degrees.
6. The fixed prefabricated construction for basement exterior wall post-cast strip early closing according to claim 4, characterized in that: the positioning mechanism comprises a first positioning plate fixedly connected with the top of the hollow plate and a second positioning plate fixedly connected with the bottom of the hollow plate, and the height of the first positioning plate in the vertical direction is equal to the height of the second positioning plate in the vertical direction.
7. The fixed prefabricated structure for the early closing of the post-cast strip of the outer wall of the basement according to claim 6, characterized in that: the front side face of the first positioning plate and the front side face of the hollow plate are on the same plane, the rear side face of the second positioning plate and the rear side face of the hollow plate are on the same plane, the distance between the rear side face of the first positioning plate and the rear side face of the hollow plate is equal to the distance between the front side face of the second positioning plate and the rear side face of the second positioning plate, and the distance between the front side face of the second positioning plate and the front side face of the hollow plate is equal to the distance between the front side face of the first positioning plate and the distance between the rear side face of the first positioning plate.
8. A construction method of a fixed prefabricated construction for closing a post-cast strip of an outer wall of a basement in advance according to any one of claims 1 to 7, which is characterized in that: the method comprises the following steps: step 1: fixing an outer wall template, pouring an outer wall and dismantling the template; step 2: after the position of the post-cast strip is cleaned up, a prefabricated cover plate is installed at the position of the post-cast strip; and step 3: after the prefabricated cover plate is installed, the prefabricated cover plate and the surface of the outer wall of the basement are cleaned simultaneously, and waterproof construction of the outer wall of the basement is conducted.
9. The construction method of the fixed prefabricated construction for the basement exterior wall post-cast strip early closing as claimed in claim 8, wherein the construction method comprises the following steps: the basement outer wall template in step 1 adopts the syllogic stagnant water screw rod fixed, and first waterproof screw rod is 200mm high off the ground, and remaining vertical interval 500mm, treat basement outer wall concrete placement completion back, demolish template and syllogic stagnant water screw rod detachable part, make the waterproof pull rod stay in the outer wall of basement.
10. The construction method of the fixed prefabricated construction for the early closing of the post-cast strip of the outer wall of the basement according to the claim 9, characterized in that: the specific operation of the step 2 is as follows: the method comprises the steps of prefabricating prefabricated cover plates in advance according to design, fixing the prefabricated cover plates from bottom to top in sequence, positioning two connected prefabricated cover plates in the vertical direction through a positioning mechanism, connecting the prefabricated cover plates with a waterproof pull rod reserved in an outer wall through a screw rod in a threaded manner, enabling a nut at the end part of the screw rod to be located in a groove, and enabling the rear end of the screw rod to penetrate through a through hole to be in threaded connection with a threaded hole in the end part of the waterproof pull rod.
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| CN202111123681.7A CN113944240A (en) | 2021-09-24 | 2021-09-24 | Fixed prefabricated structure for sealing basement outer wall post-cast strip in advance and construction method thereof |
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| CN202111123681.7A CN113944240A (en) | 2021-09-24 | 2021-09-24 | Fixed prefabricated structure for sealing basement outer wall post-cast strip in advance and construction method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114809103A (en) * | 2022-05-18 | 2022-07-29 | 广东省建筑工程集团有限公司 | Prefabricated section of jurisdiction enclosed construction of assembled |
| CN115110646A (en) * | 2022-07-01 | 2022-09-27 | 广东正升建筑有限公司 | Post-cast strip construction process |
| CN115492367A (en) * | 2022-11-05 | 2022-12-20 | 北京城建集团有限责任公司 | Basement concrete outer wall post-cast strip template and casting method |
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