CN117090356A - Prefabricated parapet and steel bar truss floor carrier plate connecting node and construction method thereof - Google Patents
Prefabricated parapet and steel bar truss floor carrier plate connecting node and construction method thereof Download PDFInfo
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- CN117090356A CN117090356A CN202311260574.8A CN202311260574A CN117090356A CN 117090356 A CN117090356 A CN 117090356A CN 202311260574 A CN202311260574 A CN 202311260574A CN 117090356 A CN117090356 A CN 117090356A
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- prefabricated parapet
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 155
- 239000010959 steel Substances 0.000 title claims abstract description 155
- 238000010276 construction Methods 0.000 title abstract description 30
- 239000004567 concrete Substances 0.000 claims abstract description 34
- 239000000463 material Substances 0.000 claims description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 13
- 238000011065 in-situ storage Methods 0.000 claims description 10
- 238000003466 welding Methods 0.000 claims description 7
- 238000005266 casting Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 3
- 238000007781 pre-processing Methods 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 abstract description 6
- 238000012986 modification Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 238000005336 cracking Methods 0.000 description 3
- 239000011150 reinforced concrete Substances 0.000 description 3
- 238000009825 accumulation Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 2
- 238000005253 cladding Methods 0.000 description 2
- 230000003628 erosive effect Effects 0.000 description 2
- 238000009415 formwork Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 229910001335 Galvanized steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000008397 galvanized steel Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000009417 prefabrication Methods 0.000 description 1
Classifications
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- 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
-
- 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
- E04B1/38—Connections for building structures in general
-
- 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
- E04B1/38—Connections for building structures in general
- E04B1/41—Connecting devices specially adapted for embedding in concrete or masonry
-
- 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
- E04B1/38—Connections for building structures in general
- E04B1/61—Connections for building structures in general of slab-shaped building elements with each other
-
- 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
-
- 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
-
- 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
- E04B1/6806—Waterstops
-
- 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
- E04B1/6807—Expansion elements for parts cast in situ
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B5/00—Floors; Floor construction with regard to insulation; Connections specially adapted therefor
- E04B5/16—Load-carrying floor structures wholly or partly cast or similarly formed in situ
- E04B5/32—Floor structures wholly cast in situ with or without form units or reinforcements
-
- 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
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- 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
- E04D13/16—Insulating devices or arrangements in so far as the roof covering is concerned, e.g. characterised by the material or composition of the roof insulating material or its integration in the roof structure
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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
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- 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
- E04D2013/1422—Parapet building elements for retaining the roof flashing
Abstract
The application relates to the technical field of building structure engineering, in particular to a prefabricated parapet and steel bar truss building carrier plate connecting node and a construction method thereof, wherein the connecting node comprises the following components: the roof board comprises a steel bar truss floor support plate and cast-in-place concrete components coated outside the steel bar truss floor support plate; the prefabricated parapet is arranged on the roof board, and the outer side face of the prefabricated parapet is flush with the outer side face of the roof board; one end of the flashing steel plate is embedded in the prefabricated parapet wall, and the other end of the flashing steel plate extends obliquely downwards and covers a joint between the inner side surface of the prefabricated parapet wall and the upper surface of the roof board; and one end of the bag Bian Gangban is embedded in the prefabricated parapet wall, and the other end of the bag extends downwards along the outer side face of the prefabricated parapet wall and covers the outer side face of the roof board and at least part of the bottom face of the roof board. By adopting the prefabricated parapet, the influence of secondary concrete pouring wet operation is avoided. Meanwhile, the seam between the prefabricated parapet wall and the roof board is covered or coated by arranging the flashing steel plate and the bag Bian Gangban, so that rainwater is prevented from penetrating.
Description
Technical Field
The application relates to the technical field of building structure engineering, in particular to a connecting node of a prefabricated parapet wall and a steel bar truss building carrier plate and a construction method thereof.
Background
In recent years, the industrialization of buildings is advocated greatly in China, and assembled steel structure buildings play an important role in green construction. The steel bar truss floor support plate is a common composite floor system in an assembled steel structure, and is formed by processing steel bars into steel bar trusses in factories and welding galvanized steel sheets. Compared with the traditional concrete floor slab, the steel bar truss floor supporting plate can be used as a template to bear all construction loads, the template and the formwork supporting process are omitted, the construction is convenient, and the construction speed is high.
In general, parapet walls are arranged on edges of building roof boards. As shown in FIG. 1, since the parapet 1 is higher (usually not less than 600 mm), when the roof construction of the steel bar truss floor support plate 2, the secondary pouring is often needed, namely, the concrete slab of the steel bar truss floor support plate 2 is poured first, then the parapet 1 is subjected to formwork erection for secondary pouring, and since the steel bar truss floor support roof plate and the parapet 1 are not integrally poured, the following problems exist:
1) The construction joint of the roof board and the parapet 1, the joint of the outer side of the parapet 1 and the steel beam 3 below the roof board easily form water seepage channels, and the internal functions of the building are affected;
2) The joint position of the waterproof coiled material 4 and the parapet 1 is difficult to be tightly attached, and a large-area hollowing cracking phenomenon often occurs, so that the waterproof coiled material 4 does not play a good flashing role;
3) The secondary pouring of parapet 1 affects construction quality and construction progress.
Disclosure of Invention
The application aims to provide a prefabricated parapet and steel bar truss floor support plate connecting node and a construction method thereof, which at least solve one of the technical problems of the prior art or the related art of the parapet and steel bar truss floor support plate connecting node.
In order to achieve the above object, the present application provides a connection node between a prefabricated parapet wall and a steel bar truss floor carrier plate, comprising:
the roof board comprises a steel bar truss floor support plate and cast-in-place concrete components coated outside the steel bar truss floor support plate;
the prefabricated parapet is arranged on the roof board, and the outer side face of the prefabricated parapet is flush with the outer side face of the roof board;
one end of the flashing steel plate is embedded in the prefabricated parapet wall, and the other end of the flashing steel plate extends obliquely downwards and covers a joint between the inner side surface of the prefabricated parapet wall and the upper surface of the roof board;
and one end of the bag Bian Gangban is embedded in the prefabricated parapet wall, and the other end of the bag extends downwards along the outer side face of the prefabricated parapet wall and covers the outer side face of the roof board and at least part of the bottom face of the roof board.
Optionally, an oblique angle concrete area is formed at the joint between the inner side surface of the prefabricated parapet wall and the upper surface of the roof board.
Optionally, a waterproof coiled material is laid on the upper surface of the roof board, and the waterproof coiled material extends upwards to the lower side of the flashing steel plate along the inner side of the oblique angle concrete area and the prefabricated parapet wall to close up.
Optionally, an expansion water stop strip is buried in the joint between the inner side surface of the prefabricated parapet wall and the upper surface of the roof board.
Optionally, a plurality of stress steel bars are pre-buried in the prefabricated parapet, the one end of flashing steel sheet and the one end of steel sheet of borduring all with the stress steel bar is connected.
Optionally, one end of the flashing steel plate and one end of the edge-covered steel plate are respectively welded and connected with the stressed steel bars through welding short bars.
Optionally, a plurality of plate steel bars are arranged in the roof board, one end of the stressed steel bar is embedded in the prefabricated parapet wall, and the other end extends into the roof board and is connected with the plate steel bars.
Optionally, the other end of the stressed steel bar is welded with the plate steel bar.
Optionally, the bag Bian Gangban is connected to the steel beam below the roof panel by a fillet weld.
Based on the construction method, the application also provides a construction method for the connecting node of the prefabricated parapet wall and the steel bar truss floor support plate, which comprises the following steps:
pre-processing a prefabricated parapet, and pre-embedding a flashing steel plate and a bag Bian Gangban in the prefabricated parapet;
placing the prefabricated parapet wall on a steel bar truss floor support plate, and supporting a template and then casting concrete in situ to form a roof plate;
one end of the flashing steel plate is embedded in the prefabricated parapet wall, the other end of the flashing steel plate extends obliquely downwards and covers a joint between the inner side surface of the prefabricated parapet wall and the upper surface of the roof board, one end of the edge-covering steel plate is embedded in the prefabricated parapet wall, and the other end of the edge-covering steel plate extends downwards along the outer side surface of the prefabricated parapet wall and covers the outer side surface of the roof board and at least part of the bottom surface of the roof board.
The connecting node of the prefabricated parapet and the steel bar truss floor carrier plate and the construction method thereof have at least one of the following beneficial effects:
1) By adopting the prefabricated parapet, when the connecting node is constructed, only one cast-in-situ of the steel bar truss floor carrier plate is needed, so that the influence of secondary concrete pouring wet operation is avoided, the construction quality is improved, and the construction period is shortened;
2) The flashing steel plates and the bags Bian Gangban are arranged to cover or cover the joints of the prefabricated parapet wall and the roof board, so that rainwater is prevented from penetrating, the building quality is improved, and the advantages of the fabricated building are fully exerted;
3) By forming an oblique angle concrete area at the joint of the inner side surface of the prefabricated parapet and the upper surface of the roof board, water accumulation at the construction joint position of the parapet corner can be effectively avoided, and the hidden trouble of water seepage at the joint of the roof board and the parapet is eliminated;
4) The waterproof performance of the joint of the roof board and the prefabricated parapet wall can be further improved by arranging the waterproof coiled material, the lower opening of the flashing steel plate can conceal the closing-in of the waterproof coiled material, the phenomenon of hollowing and cracking of the waterproof coiled material caused by rain erosion can be avoided, and the service life of the waterproof coiled material is prolonged;
5) The stress steel bars pre-embedded in the prefabricated parapet wall are connected with the plate steel bars in the roof plate, so that the connection strength of the prefabricated parapet wall and the roof plate can be improved, and the integrity of the prefabricated parapet wall and the roof plate is better;
6) The bag Bian Gangban is connected with the steel beam below the roof board through the fillet weld with the through length, so that the design can prevent water flow from penetrating into a room along the outer side surface of the parapet wall and the bottom surface of the roof board, and the building quality is improved.
Drawings
Those of ordinary skill in the art will appreciate that the figures are provided for a better understanding of the present application and do not constitute any limitation on the scope of the present application. Wherein:
FIG. 1 is a schematic view of a prior art parapet and steel truss floor deck connection node;
FIG. 2 is a schematic view of a connection node between a prefabricated parapet and a steel bar truss floor support plate according to an embodiment of the present application;
fig. 3 is a schematic structural diagram of a prefabricated parapet according to an embodiment of the present application.
In the accompanying drawings:
1-parapet wall; 2-a steel bar truss floor support plate; 3-steel beams; 4-waterproof coiled materials;
10-roof panels; 11-a steel bar truss floor support plate; 12-cast-in-place concrete components; 13-bevel concrete area; 14-plate steel bars; 20-prefabricating parapet walls; 21-stressed steel bars; 22-adding welding short ribs; 30-flashing steel plate; 40-pack Bian Gangban; 41-fillet weld; 50-waterproof coiled materials; 60-expanding water stop strips; 70-steel beam.
Detailed Description
The application will be described in further detail with reference to the drawings and the specific embodiments thereof in order to make the objects, advantages and features of the application more apparent. It should be noted that the drawings are in a very simplified form and are all to a non-precise scale, merely for the purpose of facilitating and clearly aiding in the description of embodiments of the application. For a better understanding of the application with objects, features and advantages, refer to the drawings. It should be understood that the structures, proportions, sizes, etc. shown in the drawings are shown only in connection with the present disclosure for the understanding and reading of the present disclosure, and are not intended to limit the scope of the application, which is defined by the appended claims, and any structural modifications, proportional changes, or dimensional adjustments, which may be made by the present disclosure, should fall within the scope of the present disclosure under the same or similar circumstances as the effects and objectives attained by the present application.
As used in this disclosure, the singular forms "a," "an," and "the" include plural referents unless the content clearly dictates otherwise. As used in this disclosure, the term "or" is generally employed in its sense including "and/or" unless the content clearly dictates otherwise. As used in this disclosure, the term "plurality" is generally employed in its sense including "at least one" unless the content clearly dictates otherwise. As used in this disclosure, the term "at least two" is generally employed in its sense including "two or more", unless the content clearly dictates otherwise. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first", "a second", "a third" may include one or at least two such features, either explicitly or implicitly.
In the description of the present application, unless explicitly stated and limited otherwise, the terms "mounted," "connected," and "secured" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present application will be understood in specific cases by those of ordinary skill in the art.
Referring to fig. 2-3, the present embodiment provides a connection node between a prefabricated parapet wall and a steel bar truss floor deck, which includes:
roof board 10, including steel bar truss floor support plate 11 and cast-in-place concrete member 12 coated outside steel bar truss floor support plate 11;
the prefabricated parapet 20 is arranged on the roof board 10, and the outer side surface of the prefabricated parapet 20 is flush with the outer side surface of the roof board 10;
one end of the flashing steel plate 30 is embedded in the prefabricated parapet 20, and the other end extends obliquely downwards and covers a joint between the inner side surface of the prefabricated parapet 20 and the upper surface of the roof board 10;
and a cladding steel plate 40 with one end embedded in the prefabricated parapet 20 and the other end extending downward along the outer side of the prefabricated parapet 20 and cladding the outer side of the roof board 10 and at least part of the bottom of the roof board 10.
By adopting the prefabricated parapet 20, only one cast-in-situ of the steel bar truss floor carrier plate 11 is needed when the connection node construction is carried out, so that the influence of secondary concrete pouring wet operation is avoided, the construction quality is improved, and the construction period is shortened. Meanwhile, the seam between the prefabricated parapet wall 20 and the roof board 10 is covered or covered by the flashing steel plates 30 and the edge-covered steel plates 40, so that rainwater is prevented from penetrating, the building quality is improved, and the advantages of the assembled building are fully exerted.
It should be understood that references to "inside" and "outside" in this disclosure are to the opposite sides of a building element and are not strictly intended to be indoor or outdoor of the building.
In this embodiment, the roof board 10 is a prefabricated and cast-in-situ structure, that is, the steel bar truss floor carrier 11 can be prefabricated in a factory, the cast-in-situ concrete member 12 is cast-in-situ, and the prefabricated parapet wall 20 is a prefabricated reinforced concrete structure.
Preferably, an angled concrete area 13 is formed at the joint of the inner side of the prefabricated parapet 20 and the upper surface of the roof panel 10. The oblique angle concrete area 13 can be formed by adopting an oblique angle template in pouring the roof board 10, and the design of the oblique angle concrete area 13 can effectively avoid water accumulation at the construction joint position of the parapet corner and eliminate the hidden trouble of water seepage at the joint of the roof board 10 and the parapet.
Further, a waterproof roll 50 is laid on the upper surface of the roof board 10, and the waterproof roll 50 extends upward along the inner side of the bevel concrete area 13 and the prefabricated parapet 20 to the lower side of the flashing steel plate 30 to close. Waterproof performance of the joint of the roof board 10 and the prefabricated parapet 20 can be further improved through the waterproof coiled material 50, the lower opening of the flashing steel plate 30 can conceal the closing-in of the waterproof coiled material 50, the phenomenon of hollowing and cracking of the waterproof coiled material 50 caused by rainwater erosion can be avoided, and the service life of the waterproof coiled material 50 is prolonged.
Furthermore, the expansion water stop strips 60 are buried in the joints between the inner side surface of the prefabricated parapet 20 and the upper surface of the roof board 10, so as to further improve the waterproof performance of the joints between the roof board 10 and the parapet, and eliminate the hidden trouble of water seepage at the joints.
In this embodiment, a plurality of stress steel bars 21 are embedded in the prefabricated parapet wall 20, and one end of the flashing steel plate 30 and one end of the edge-covering steel plate 40 are connected with the stress steel bars 21.
Preferably, referring to fig. 3, one end of the flashing steel plate 30 and one end of the edge-covering steel plate 40 are welded to the stress steel bar 21 by the welding short bars 22. The stability of the flashing steel plate 30 and the edge-covered steel plate 40 can be improved in a welding mode, and the waterproof steel plate and the edge-covered steel plate 40 are prevented from loosening due to overlong service time.
With continued reference to fig. 2, a plurality of plate steel bars 14 are disposed in the roof board 10, one ends of the stress steel bars 21 are embedded in the prefabricated parapet wall 20, and the other ends extend into the roof board 10 and are connected with the plate steel bars 14. Through connecting the pre-buried atress reinforcing bar 21 in the prefabricated parapet 20 with the board reinforcing bar 14 in the roof boarding 10, can promote prefabricated parapet 20 and cast in situ concrete member 12 (i.e. roof boarding 10) joint strength for both wholes are better.
In this embodiment, the other end of the stressed steel bar 21 is welded to the plate steel bar 14.
It should be understood that the extending direction of the other end of the stressed steel bar 21 is not limited, for example, the other end of the stressed steel bar may extend vertically or obliquely downward, so that the connection strength of the prefabricated parapet 20 and the cast-in-place concrete member 12 can be further improved. In this embodiment, the other end of the stress steel bar 21 may be parallel to the oblique angle concrete area 13 formed at the joint between the inner side of the prefabricated parapet wall 20 and the upper surface of the roof board 10, so the design may further increase the strength of the oblique angle concrete area 13, and is not easy to collapse.
It should be understood that the number and distribution of the stressed steel bars 21 and the connection steel bars are not limited in the present application, and may be designed according to practical requirements.
The steel plates 40 are connected with the steel beams 70 below the roof board 10 through long fillet welds 41, and the design can prevent water flow from penetrating into a room along the outer side surface of the parapet wall and the bottom surface of the roof board 10, so that the building quality is improved.
Based on this, the embodiment of the application also provides a construction method for the connection node between the prefabricated parapet wall 20 and the steel bar truss floor support plate 11, which comprises the following steps:
pre-processing the prefabricated parapet 20, and pre-embedding a flashing steel plate 30 and a binding steel plate 40 in the prefabricated parapet 20;
placing the prefabricated parapet wall 20 on a steel bar truss floor support plate 11, and supporting a template and then casting concrete in situ to form a roof board 10;
one end of the flashing steel plate 30 is embedded in the prefabricated parapet 20, the other end extends obliquely downward and covers a seam between the inner side surface of the prefabricated parapet 20 and the upper surface of the roof board 10, one end of the edge-covering steel plate 40 is embedded in the prefabricated parapet 20, and the other end extends downward along the outer side surface of the prefabricated parapet 20 and covers the outer side surface of the roof board 10 and at least part of the bottom surface of the roof board 10.
When in concrete construction, the prefabricated parapet 20 is prefabricated, firstly, the stress steel bars 21 of the prefabricated parapet 20 are bound, and if other steel bars are arranged together; then, the edge-covered steel plate 40 and the flashing steel plate 30 are welded on the stressed steel bar 21 through the welding short bars 22 to form a steel bar cage; then, placing the reinforcement cage in a mold, and reserving the bottom end of the stressed reinforcement 21; finally, concrete is poured to form the prefabricated parapet wall 20.
After prefabrication of the prefabricated parapet 20 is completed, the prefabricated parapet 20 is placed on the steel bar truss floor carrier plate 11, the bottom end reserved by the stressed steel bars 21 is welded with the plate steel bars 14 of the steel bar truss floor carrier plate 11, meanwhile, the edge-covered steel plates 40 are connected with the steel beams 70 through long fillet welds 41, and the expansion water stop bars 60 are buried at the boundary of the prefabricated parapet 20 to prevent construction joints from seepage; then, an oblique angle template is arranged at the joint of the prefabricated parapet 20 and the steel bar truss floor support plate 11, concrete is cast in place to form the roof plate 10, and an oblique angle concrete area 13 is formed at the joint of the inner side surface of the prefabricated parapet 20 and the upper surface of the roof plate 10.
Further, after the prefabricated parapet 20 and the reinforced concrete floor support plate are cast to form a whole, the waterproof coiled material 50 can be laid on the upper surface of the roof board 10, so that the waterproof coiled material 50 extends upwards to the lower side of the flashing steel plate 30 along the inner side of the oblique angle concrete area 13 and the prefabricated parapet 20 to close up, and the whole construction process of the connection node of the prefabricated parapet 20 and the reinforced concrete truss floor support plate 11 is completed.
In summary, the embodiment of the application provides a prefabricated parapet and steel bar truss floor support plate connecting node and a construction method thereof, and by adopting the prefabricated parapet 20, only one cast-in-situ of the steel bar truss floor support plate 11 is needed when the connecting node is constructed, so that the influence of secondary concrete pouring wet operation is avoided, the construction quality is improved, and the construction period is shortened. Meanwhile, the seam between the prefabricated parapet wall 20 and the roof board 10 is covered or covered by the flashing steel plates 30 and the edge-covered steel plates 40, so that rainwater is prevented from penetrating, the building quality is improved, and the advantages of the assembled building are fully exerted.
The above description is only illustrative of the preferred embodiments of the present application and is not intended to limit the scope of the present application, and any alterations and modifications made by those skilled in the art based on the above disclosure shall fall within the scope of the present application. It will be apparent to those skilled in the art that various modifications and variations can be made to the present application without departing from the spirit or scope of the application. Thus, the present application is intended to include such modifications and alterations insofar as they come within the scope of the application or the equivalents thereof.
Claims (10)
1. The utility model provides a prefabricated parapet and steel bar truss building carrier plate connected node which characterized in that includes:
the roof board comprises a steel bar truss floor support plate and cast-in-place concrete components coated outside the steel bar truss floor support plate;
the prefabricated parapet is arranged on the roof board, and the outer side face of the prefabricated parapet is flush with the outer side face of the roof board;
one end of the flashing steel plate is embedded in the prefabricated parapet wall, and the other end of the flashing steel plate extends obliquely downwards and covers a joint between the inner side surface of the prefabricated parapet wall and the upper surface of the roof board;
and one end of the bag Bian Gangban is embedded in the prefabricated parapet wall, and the other end of the bag extends downwards along the outer side face of the prefabricated parapet wall and covers the outer side face of the roof board and at least part of the bottom face of the roof board.
2. The prefabricated parapet and steel bar truss floor deck connection node of claim 1, wherein an oblique angle concrete area is formed at a joint of an inner side surface of the prefabricated parapet and an upper surface of the roof panel.
3. The prefabricated parapet and steel bar truss floor carrier plate connection node according to claim 2, wherein waterproof coiled materials are paved on the upper surface of the roof plate, and the waterproof coiled materials extend upwards to the lower side of the flashing steel plate along the oblique angle concrete area and the inner side of the prefabricated parapet.
4. The prefabricated parapet and steel bar truss floor carrier plate connecting node according to claim 1, wherein an expansion water stop strip is buried at a joint of the inner side surface of the prefabricated parapet and the upper surface of the roof plate.
5. The prefabricated parapet and steel bar truss floor carrier plate connection node according to claim 1, wherein a plurality of stress steel bars are embedded in the prefabricated parapet, and one end of the flashing steel plate and one end of the edge-covering steel plate are connected with the stress steel bars.
6. The prefabricated parapet and steel bar truss floor carrier plate connecting node according to claim 5, wherein one end of the flashing steel plate and one end of the edge-covering steel plate are respectively welded with the stressed steel bars through welding short bars.
7. The prefabricated parapet and steel bar truss floor carrier plate connection node according to claim 5, wherein a plurality of plate steel bars are arranged in the roof plate, one ends of the stressed steel bars are embedded in the prefabricated parapet, and the other ends extend into the roof plate and are connected with the plate steel bars.
8. The prefabricated parapet and steel bar truss floor carrier plate connection node of claim 7, wherein the other end of the stressed steel bar is welded with the plate steel bar.
9. The prefabricated parapet and steel truss floor deck connection node of claim 1, wherein the bag Bian Gangban is connected to the steel girder below the roof deck by fillet weld.
10. A method of constructing a connection node of a prefabricated parapet wall and a steel bar truss floor carrier according to any one of claims 1 to 9, comprising:
pre-processing a prefabricated parapet, and pre-embedding a flashing steel plate and a bag Bian Gangban in the prefabricated parapet;
placing the prefabricated parapet wall on a steel bar truss floor support plate, and supporting a template and then casting concrete in situ to form a roof plate;
one end of the flashing steel plate is embedded in the prefabricated parapet wall, the other end of the flashing steel plate extends obliquely downwards and covers a joint between the inner side surface of the prefabricated parapet wall and the upper surface of the roof board, one end of the edge-covering steel plate is embedded in the prefabricated parapet wall, and the other end of the edge-covering steel plate extends downwards along the outer side surface of the prefabricated parapet wall and covers the outer side surface of the roof board and at least part of the bottom surface of the roof board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311260574.8A CN117090356A (en) | 2023-09-27 | 2023-09-27 | Prefabricated parapet and steel bar truss floor carrier plate connecting node and construction method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311260574.8A CN117090356A (en) | 2023-09-27 | 2023-09-27 | Prefabricated parapet and steel bar truss floor carrier plate connecting node and construction method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117090356A true CN117090356A (en) | 2023-11-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311260574.8A Pending CN117090356A (en) | 2023-09-27 | 2023-09-27 | Prefabricated parapet and steel bar truss floor carrier plate connecting node and construction method thereof |
Country Status (1)
| Country | Link |
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| CN (1) | CN117090356A (en) |
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- 2023-09-27 CN CN202311260574.8A patent/CN117090356A/en active Pending
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