CN113463854A - Waterproof construction method for joint of parapet root and roof concrete structure - Google Patents
Waterproof construction method for joint of parapet root and roof concrete structure Download PDFInfo
- Publication number
- CN113463854A CN113463854A CN202110784580.8A CN202110784580A CN113463854A CN 113463854 A CN113463854 A CN 113463854A CN 202110784580 A CN202110784580 A CN 202110784580A CN 113463854 A CN113463854 A CN 113463854A
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- parapet
- roof
- concrete
- waterproof
- root
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- 238000010276 construction Methods 0.000 title claims abstract description 17
- 210000000481 breast Anatomy 0.000 claims abstract description 24
- 238000000034 method Methods 0.000 claims description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 12
- 238000009434 installation Methods 0.000 claims description 7
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims description 6
- 230000002829 reductive effect Effects 0.000 claims description 6
- 230000000694 effects Effects 0.000 claims description 5
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 239000007789 gas Substances 0.000 claims description 3
- 239000004570 mortar (masonry) Substances 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- LNSPFAOULBTYBI-UHFFFAOYSA-N [O].C#C Chemical group [O].C#C LNSPFAOULBTYBI-UHFFFAOYSA-N 0.000 claims description 2
- 230000003014 reinforcing effect Effects 0.000 claims 1
- 238000011179 visual inspection Methods 0.000 claims 1
- 239000010410 layer Substances 0.000 abstract description 19
- 230000008595 infiltration Effects 0.000 abstract description 6
- 238000001764 infiltration Methods 0.000 abstract description 6
- 238000007654 immersion Methods 0.000 abstract description 3
- 230000007774 longterm Effects 0.000 abstract description 3
- 238000004321 preservation Methods 0.000 abstract description 3
- 230000032683 aging Effects 0.000 abstract description 2
- 239000011241 protective layer Substances 0.000 abstract description 2
- 238000009415 formwork Methods 0.000 description 6
- 238000009825 accumulation Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- HSFWRNGVRCDJHI-UHFFFAOYSA-N alpha-acetylene Natural products C#C HSFWRNGVRCDJHI-UHFFFAOYSA-N 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 125000002534 ethynyl group Chemical group [H]C#C* 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 230000036961 partial effect Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
- E04D13/00—Special arrangements or devices in connection with roof coverings; Protection against birds; Roof drainage ; Sky-lights
- E04D13/14—Junctions of roof sheathings to chimneys or other parts extending above the roof
- E04D13/1407—Junctions of roof sheathings to chimneys or other parts extending above the roof for flat roofs
- E04D13/1415—Junctions to walls extending above the perimeter of the roof
-
- 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
- E04G11/00—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs
- E04G11/02—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs for rooms as a whole by which walls and floors are cast simultaneously, whole storeys, or whole buildings
-
- 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
- E04G17/00—Connecting or other auxiliary members for forms, falsework structures, or shutterings
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
Abstract
The invention discloses a waterproof construction method for a junction of a parapet root and a roof concrete structure, wherein the parapet is turned upwards by 300mm, and a roof panel and a parapet fence structure form a structural waterproof ring in a range of 300mm upwards from a roof. Roofing screed-coat, look for the slope layer, waterproof layer, protective layer stack and generally be greater than 250mm at parapet root position for a short time, even roofing waterproof layer is ageing, the seepage causes the long-term ponding of heat preservation screed-coat, roof boarding and parapet breast board structure can not produce the infiltration phenomenon in the waterproof circle within range of the upwards 300mm of roofing structural layer yet to stop the influence of external wall and the indoor wall immersion of top layer when roofing parapet root infiltration.
Description
Technical Field
The invention belongs to the field of civil engineering, and particularly relates to a waterproof construction method for a junction of a parapet root and a roof concrete structure.
Background
At present, parapet walls on building buildings are short walls around the roofs of the buildings, construction joints of the parapet wall plates and the roof plates are reserved at junctions of the parapet wall plates and the roof plates, and the parapet walls have main functions of maintaining safety and applying waterproof joints at bottoms to prevent water seepage of waterproof layers or overflow of roof rainwater. The main function of the parapet wall on the building is to make a waterproof head. The general roof is about 250mm thick after the methods of slope finding, heat preservation, heat insulation, water prevention and the like are completed, and the height of the end part of the waterproof layer rolled up by 250mm is considered, so that the method is a common method in the industry at present, but the phenomenon that the water seepage to the outer wall occurs at the construction joint at the junction of the partial roof and the parapet wall is still difficult to avoid.
Disclosure of Invention
In order to solve the problems, the invention discloses a waterproof construction method for the junction of the root of a parapet wall and a roof concrete structure, which changes the position of a construction joint, thereby avoiding the influence on the water immersion of an outer wall and a top layer indoor wall surface when the root of the parapet wall of a roof is infiltrated.
In order to achieve the purpose, the technical scheme of the invention is as follows:
a waterproof construction method for the junction of the parapet root and a roof concrete structure comprises the following steps:
the method comprises the following steps: the size of the side die of the roof template increases by 300mm according to the height of the original structural beam,
after the roof beam plate reinforcing steel bars are bound, firstly, embedding and fixing the parapet reinforcing steel bars; installing a template on the outer side of the roof girder according to the size of increasing by 300mm, and installing a 300mm high hanging template on the inner side of the parapet after the installation is finished;
step two:
in the concrete pouring project, roof concrete pouring is parallelly pushed in one direction, the parapet breast board is turned upwards by 300mm and poured simultaneously with roof beam board concrete, and before final setting of the concrete, after finishing the surface folding of the roof, the parapet is turned upwards by 300mm and vibrated for the second time;
step three:
and after the concrete pouring is finished, the maintenance is strengthened, and the die hanging part can be detached after the strength reaches 80%.
As an improvement of the invention, the installation requirement of the hanging mould breast board in the step one is as follows: the vertical steel pipe and the transverse batten are 50mm away from the concrete surface of the roof, so that the bricklayer can conveniently carry out concrete surface collection and template dismantling processes.
As an improvement of the invention, the hanging die in the step one is reinforced in a 300mm high breast board wall section, and a wall-through water-stop bolt is adopted to prevent the breast board wall from water seepage.
As an improvement of the present invention, the vibrating method in the second step: the inserting speed of the vibrating rod is reduced by 50% compared with the normal inserting and vibrating speed, after the concrete at the joint of the parapet and the roof slightly bulges in the range of the visual observation vibrating part, the vibrating rod is slowly pulled out, the slow pulling speed is reduced by 50% compared with the ordinary slow pulling speed, and the parapet and the roof interface are tightly combined; concrete lacking in the upper opening of the upturning breast board is filled and rubbed with hair before the vibrating rod is pulled out, secondary concrete pouring layering is avoided, the parapet board with the height of 300mm of upturning is free of honeycomb, pitted surface and bubble phenomena, and compactness achieves the self-waterproof effect of the concrete structure.
As an improvement of the invention, when the suspended formwork is dismantled in the third step, the water-stopping bolt is strictly prevented from being broken and knocked, after the formwork is dismantled, the exposed part of the water-stopping screw is subjected to gas cutting treatment by using oxygen and acetylene, the head of the exposed screw is exposed, the cutting break point is not less than 15MM in the concave direction of the outer surface of the breast board, and waterproof mortar is used for complete filling.
The invention has the beneficial effects that:
the parapet wall is turned upwards by 300mm, and the roof board and the parapet wall breast board structure form a structural waterproof ring within 300mm of the upward roof. Roofing screed-coat, look for the slope layer, waterproof layer, protective layer stack and generally be greater than 250mm at parapet root position for a short time, even roofing waterproof layer is ageing, the seepage causes the long-term ponding of heat preservation screed-coat, roof boarding and parapet breast board structure can not produce the infiltration phenomenon in the waterproof circle within range of the upwards 300mm of roofing structural layer yet to stop the influence of external wall and the indoor wall immersion of top layer when roofing parapet root infiltration.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a template installation gist map of the present invention.
Detailed Description
The present invention will be further illustrated with reference to the accompanying drawings and specific embodiments, which are to be understood as merely illustrative of the invention and not as limiting the scope of the invention.
A waterproof construction method for the junction of the root of a parapet wall and a roof concrete structure is characterized in that the parapet wall breast board is poured after roof beam board concrete is poured. The parapet fence plate does not have a self-waterproof effect at the joint of the roof and the roof, the roof is used for finding a slope, and the drainage direction is the parapet edge. The phenomenon of long-term rain or heavy rainstorm water accumulation often occurs, particularly, the waterproof layer construction defect or the waterproof layer is aged, roof water leaks to the heat insulation layer and looks for a slope layer, so that the roof water accumulation for a long time causes outward water seepage at the joint of the parapet wall and the roof, the outer wall plastering layer is hollow and cracked, the coating layer falls off, and the top layer indoor wall surface is soaked in water and other adverse effects.
The method of the invention is to move up the construction joint at the joint of the concrete breast board and the roof by 300mm, as shown in figure 1, and complete the 300mm breast board and the roof concrete structure at one time by adopting a hanging mould. The problem of roofing and concrete breast board handing-over department infiltration is solved, concrete embodiment is:
the method comprises the following steps:
the size of the side formwork of the roof formwork is increased by 300mm according to the height of the original structural beam, see the node 6 in fig. 2 in detail, and after the binding of the roof beam slab reinforcing steel bars is finished, the parapet reinforcing steel bars are pre-embedded and fixed. Firstly, installing a template on the outer side of the roof girder according to the size of 300mm, and after the installation is finished, installing a 300mm high hanging template on the inner side of the parapet. The installation requirement of the hanging mould breast board is as follows: the height of the vertical steel pipe and the transverse batten from the concrete surface of the roof is 50mm, and the concrete surface is shown in nodes 2 and 3 in figure 2 in detail, so that the working procedures of concrete surface collection and template dismantling are conveniently carried out by a bricklayer. The hoisting die is reinforced in the interval of the high breast board wall with the height of 300mm, and perforated bolts are strictly forbidden for reinforcement. Adopt the wall bolt that ends up, see fig. 2 node 5 in detail, stop the breast board wall infiltration.
Step two:
in the concrete pouring project, roof concrete pouring is parallelly pushed in one direction, the parapet breast board is turned upwards by 300mm and poured simultaneously with roof beam board concrete, and before final setting of the concrete, after finishing the surface folding of the roof, the parapet is turned upwards by 300mm for secondary vibration.
The vibrating method comprises the following steps: the inserting speed of the vibrating rod is reduced by 50% compared with the normal inserting and vibrating speed, the joint of the parapet and the roof in the range of the vibrating part is visually observed, the joint 1 is shown in detail in figure 2, after concrete slightly bulges, the vibrating rod is slowly pulled out, the slow pulling speed is reduced by 50% compared with the ordinary slow pulling speed, and the parapet and the roof interface are tightly combined. Concrete lacking in the upper opening of the upturning breast board is filled and rubbed with hair before the vibrating rod is pulled out, secondary concrete pouring layering is avoided, the parapet board with the height of 300mm of upturning is free of honeycomb, pitted surface and bubble phenomena, and compactness achieves the self-waterproof effect of the concrete structure.
Step three:
and after the concrete pouring is finished, the maintenance is strengthened, and the die hanging part can be detached after the strength reaches 80%. When the suspended formwork is dismantled, the water-stopping bolts are strictly prevented from being broken and knocked, after the formwork is dismantled, the exposed part of the water-stopping screw is subjected to oxygen-acetylene gas cutting treatment, the screw head is exposed, the cutting break point is not less than 15mm of the inner recess of the outer surface of the breast board, and the water-proof mortar is used for complete filling, so that the operation is completed.
While the invention has been shown and described with respect to the preferred embodiments, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the scope of the invention as defined in the following claims.
Claims (5)
1. A waterproof construction method for the junction of the parapet root and the roof concrete structure is characterized in that: the method comprises the following steps:
the method comprises the following steps: the size of the side die of the roof template increases by 300mm according to the height of the original structural beam,
after the roof beam plate reinforcing steel bars are bound, firstly, embedding and fixing the parapet reinforcing steel bars; installing a template on the outer side of the roof girder according to the size of increasing by 300mm, and installing a 300mm high hanging template on the inner side of the parapet after the installation is finished;
step two:
in the concrete pouring project, roof concrete pouring is parallelly pushed in one direction, the parapet breast board is turned upwards by 300mm and poured simultaneously with roof beam board concrete, and before final setting of the concrete, after finishing the surface folding of the roof, the parapet is turned upwards by 300mm for secondary vibration;
step three:
and (5) after concrete pouring, reinforcing and maintaining, and removing the mould hanging part after the strength reaches 80%.
2. The waterproof construction method for the junction of the parapet root and the roofing concrete structure as claimed in claim 1, wherein: the installation requirement of the hanging mould breast board in the first step is as follows: the vertical steel pipe and the transverse batten are 50mm away from the roof concrete surface.
3. The waterproof construction method for the junction of the parapet root and the roofing concrete structure as claimed in claim 1, wherein: and step one, the hanging mould is reinforced in a 300mm high breast board wall section and is connected by adopting a through-wall water stop bolt.
4. The waterproof construction method for the junction of the parapet root and the roofing concrete structure as claimed in claim 1, wherein: step two, the vibration method comprises the following steps: the inserting speed of the vibrating rod is reduced by 50% compared with the normal inserting speed, after the concrete at the joint of the parapet and the roof slightly bulges in the range of the visual inspection vibrating part, the vibrating rod is pulled slowly, the pulling speed is reduced by 50% compared with the ordinary pulling speed, and the parapet and the roof interface are ensured to be tightly combined; concrete lacking in the upper opening of the upturning breast board is filled and rubbed with hair before the vibrating rod is pulled out, secondary concrete pouring layering is avoided, the parapet board with the height of 300mm of upturning is free of honeycomb, pitted surface and bubble phenomena, and compactness achieves the self-waterproof effect of the concrete structure.
5. The waterproof construction method for the junction of the parapet root and the roofing concrete structure as claimed in claim 1, wherein: and step three, when the suspended mould is dismantled, the exposed part of the water stop screw is subjected to oxygen acetylene gas cutting treatment, the cutting break point is not less than 15MM in the concave outside of the breast board, and waterproof mortar is used for complete filling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110784580.8A CN113463854A (en) | 2021-07-12 | 2021-07-12 | Waterproof construction method for joint of parapet root and roof concrete structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110784580.8A CN113463854A (en) | 2021-07-12 | 2021-07-12 | Waterproof construction method for joint of parapet root and roof concrete structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113463854A true CN113463854A (en) | 2021-10-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110784580.8A Pending CN113463854A (en) | 2021-07-12 | 2021-07-12 | Waterproof construction method for joint of parapet root and roof concrete structure |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106906962A (en) * | 2017-03-14 | 2017-06-30 | 中冶建工集团有限公司 | A kind of building roof parapet flashing construction technology |
| CN109281443A (en) * | 2018-11-08 | 2019-01-29 | 武汉建工集团股份有限公司 | A kind of building roof parapet flashing structure and construction method |
| CN209114751U (en) * | 2018-11-08 | 2019-07-16 | 武汉建工集团股份有限公司 | A kind of building roof parapet flashing structure |
| CN110821057A (en) * | 2019-11-22 | 2020-02-21 | 上海宝冶市政工程有限公司 | Self-waterproof structure of roof parapet and construction method |
| CN210195059U (en) * | 2019-05-22 | 2020-03-27 | 祝俊生 | Roofing and parapet heat preservation waterproof node structure |
-
2021
- 2021-07-12 CN CN202110784580.8A patent/CN113463854A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106906962A (en) * | 2017-03-14 | 2017-06-30 | 中冶建工集团有限公司 | A kind of building roof parapet flashing construction technology |
| CN109281443A (en) * | 2018-11-08 | 2019-01-29 | 武汉建工集团股份有限公司 | A kind of building roof parapet flashing structure and construction method |
| CN209114751U (en) * | 2018-11-08 | 2019-07-16 | 武汉建工集团股份有限公司 | A kind of building roof parapet flashing structure |
| CN210195059U (en) * | 2019-05-22 | 2020-03-27 | 祝俊生 | Roofing and parapet heat preservation waterproof node structure |
| CN110821057A (en) * | 2019-11-22 | 2020-02-21 | 上海宝冶市政工程有限公司 | Self-waterproof structure of roof parapet and construction method |
Non-Patent Citations (1)
| Title |
|---|
| 张秀莉: "混凝土女儿墙吊模施工技术研究", 《山西建筑》, vol. 43, 31 December 2017 (2017-12-31), pages 97 - 98 * |
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Application publication date: 20211001 |
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