CN112502337A - Fabricated floor, building structure with fabricated floor and construction method of building structure - Google Patents
Fabricated floor, building structure with fabricated floor and construction method of building structure Download PDFInfo
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- CN112502337A CN112502337A CN202011498124.9A CN202011498124A CN112502337A CN 112502337 A CN112502337 A CN 112502337A CN 202011498124 A CN202011498124 A CN 202011498124A CN 112502337 A CN112502337 A CN 112502337A
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- plate prefabricated
- tendon
- plate
- prestressed tendon
- slab
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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
- 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
- E04B5/17—Floor structures partly formed in situ
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
- E04C5/08—Members specially adapted to be used in prestressed constructions
Abstract
The invention discloses an assembly floor, a building structure with the same and a construction method thereof, wherein the assembly floor comprises a prefabricated part main body, a prestressed tendon support and a prestressed tendon anchorage; the prefabricated part main body comprises a plurality of plate prefabricated parts, and the plate prefabricated parts comprise a plurality of middle plate prefabricated parts and side plate prefabricated parts; the middle plate prefabricated members are arranged between the side plate prefabricated members; the inner parts of the middle plate prefabricated part and the side plate prefabricated part are respectively provided with at least one tendon passing channel for placing the prestressed tendon, and the prestressed tendon is arranged in the tendon passing channel in a penetrating way; the prestressed tendon support is fixed on the side plate prefabricated part, and two ends of the prestressed tendon are fixed on the prestressed tendon support of the side plate prefabricated part through the prestressed tendon anchorage; the technology provided by the invention has higher construction speed and can prevent the splicing seam from generating cracks.
Description
Technical Field
The invention belongs to the technical field of fabricated buildings, and particularly relates to a fabricated floor, a building structure with the fabricated floor and a construction method of the building structure.
Background
At present, the assembly type building in China is gradually rising. In fabricated buildings, the floor slab mainly adopts the concrete composite floor slab technology at present. The concrete laminated floor slab is divided into two parts along the thickness direction, the bottom part is a prefabricated bottom plate, and the upper part is post-cast with a concrete laminated layer.
The concrete composite floor slab can be divided into a unidirectional stressed laminated slab and a bidirectional stressed laminated slab according to the specific stressed state; if the prefabricated bottom plates are classified, the prefabricated bottom plates can be divided into prefabricated concrete bottom plates and prefabricated prestressed concrete bottom plates according to different types of the stressed steel bars; the precast prestressed concrete bottom plate can be divided into a prestressed concrete flat plate, a prestressed concrete ribbed plate, a prestressed concrete hollow plate and the like.
But no matter how the concrete composite floor slab is classified, only two kinds of modes are available during the splicing of the prefabricated bottom plate: 1) and post-cast concrete strips are arranged between the prefabricated baseplates. This way is done: the prefabricated bottom plate splicing position is provided with steel bars and is mutually pulled apart by a certain distance, and the prefabricated bottom plate steel bars are connected firstly and then concrete is poured later. 2) The prefabricated baseplates are closely spliced. Namely, no post-cast strip is arranged between the prefabricated bottom plates, and the prefabricated bottom plates are mutually occluded or tightly attached to form a dense splicing.
Both of the above two approaches have certain disadvantages:
1) and post-cast concrete strips are manufactured between the prefabricated baseplates. The mode needs to connect the prefabricated bottom plate reinforcing steel bars and install the template of the post-cast strip, the construction process is complex, and the advantages of convenience in construction and high installation efficiency of the fabricated building cannot be exerted.
2) The prefabricated baseplates are closely spliced. The mode is convenient to construct and high in installation efficiency, but cracks are easy to generate at the abutted seam positions after construction. Although the crack does not affect the structure safety, users are easy to feel insecurity, and the market popularization and application are affected.
In addition, no matter what form the composite floor slab adopts, because the composite layer concrete needs to be poured on site, during actual construction, the concrete of the composite layer of the floor slab needs to be waited for to reach certain strength before the upward assembly construction can be continued, which seriously hinders the assembly construction speed, and therefore, the advantages of the assembly type building are weakened.
In the research and application of home and abroad assembled floor slabs, an attempt is made to use a full precast slab assembly technology, but the floor slabs assembled by full precast slabs have the problems of easy cracking and leakage of joints and poor integrity, so that the conventional assembled floor slabs are still laminated floor slabs.
Disclosure of Invention
The invention provides an assembled floor slab in order to overcome the technical defects of a laminated floor slab and a full precast slab, and aims to provide an assembled floor slab which is higher in construction speed and can overcome the technical defects.
A second object of the present invention is to provide a construction method of the fabricated floor.
In order to solve the problems, the invention is realized according to the following technical scheme:
in a first aspect, the invention provides an assembled floor slab, which comprises a prefabricated part main body, a prestressed tendon support and a prestressed tendon anchorage;
the prefabricated part main body comprises a plurality of plate prefabricated parts, and the plate prefabricated parts comprise a plurality of middle plate prefabricated parts and side plate prefabricated parts; the middle plate prefabricated members are arranged between the side plate prefabricated members;
the invention does not limit the need to place an intermediate plate preform between two edge plate preforms.
The inner parts of the middle plate prefabricated part and the side plate prefabricated part are respectively provided with at least one tendon passing channel for placing the prestressed tendon, and the prestressed tendon is arranged in the tendon passing channel in a penetrating way;
the prestressed tendon support is fixed on the side plate prefabricated member, and two ends of the prestressed tendon are fixed on the prestressed tendon support of the side plate prefabricated member through the prestressed tendon anchorage device.
The high-strength steel bar is preferably selected as the prestressed tendon; the prestressed tendon anchorage is preferably provided with an upper anchorage or a screw end rod die at the fixed end, and is preferably provided with a screw end rod anchorage at the tensioning end;
furthermore, the rib penetrating channel is a rib penetrating groove or a rib penetrating hole.
Furthermore, the included angle of the intersection of the direction of the rib penetrating channel and the splicing seam when the plate prefabricated members are spliced with each other is 60-120 degrees.
Further, the cast-in-place member also comprises a steel bar on the upper part of the slab and a concrete superposed layer cast-in-place member; the concrete laminated layer cast-in-place piece is arranged on the plate prefabricated part main body; and the upper steel bars of the plates are positioned in the concrete laminated layer.
Further, the prefabricated plate body further comprises a connecting part used for fixing the prefabricated plate body on a structural beam and/or a shear wall.
Furthermore, a connecting part is arranged at the connecting position of the plate prefabricated member and the structural beam and/or the shear wall, and the connecting part comprises a plate bottom rib and a plate upper reinforcing steel bar; and one end of each of the bottom plate reinforcing steel bar and the upper plate reinforcing steel bar is arranged in the plate prefabricated part main body, and the other end of each of the bottom plate reinforcing steel bar and the upper plate reinforcing steel bar is connected with the structural beam and/or the shear wall.
Furthermore, the maximum thickness of the middle plate prefabricated part and the maximum thickness of the side plate prefabricated part are the same as the thickness of the floor slab.
Furthermore, both sides of the middle plate prefabricated part and one side of the side plate prefabricated part are provided with L-shaped notches; the notches which are oppositely arranged form concave notches, and a first concrete cast-in-place piece is arranged in each concave notch.
In the L-shaped notch, a local rib or a rough surface can be arranged for the purpose of increasing the bonding between the plate prefabricated member and the first concrete cast-in-place member; or for the purpose of improving the local stability of the plate preform when prestressing is applied, local ribs or the like. The invention is not limited to these local practices within the notch.
Furthermore, the device also comprises a plurality of connecting reinforcing pieces; one end of the connecting reinforcement is arranged in the plate prefabricated member, and the other end of the connecting reinforcement is arranged in the first concrete cast-in-place member.
Furthermore, the device also comprises a plurality of supporting pieces; the supporting pieces are arranged in the superposed layers of the structural beams or the shear walls, the length of each supporting piece is equal to the width of each structural beam or the shear wall, and the supporting pieces are used for tightly supporting the plate prefabricated members on the two sides of each structural beam or the shear wall when the prestressed tendons cross the structural beams or the shear walls. The material and the cross-sectional shape of the support member are not limited in the present invention.
In a second aspect, the present invention provides a building structure having a fabricated floor, comprising a structural beam and/or a shear wall and including a fabricated floor as described in the first aspect; the structural beam and/or the shear wall is provided with a second concrete cast-in-place part for connecting the slab prefabricated member main body with the structural beam and/or the shear wall.
In a third aspect, the present invention provides a method of constructing a building structure having a fabricated floor, the method comprising the steps of:
installing the structural beam and/or the shear wall at a preset position;
installing a plurality of plate prefabricated parts with a rib penetrating channel at a preset position, wherein each plate prefabricated part comprises a plurality of middle plate prefabricated parts and side plate prefabricated parts, and the middle plate prefabricated parts are arranged between the two side plate prefabricated parts; the reinforcement penetrating channels of the adjacent plate prefabricated members are communicated; the invention does not limit the need to place an intermediate plate preform between two edge plate preforms.
Putting prestressed tendons in the communicated tendon passing channels;
stretching the prestressed tendon according to a preset tension force, and anchoring the prestressed tendon on the support for fixing the prestressed tendon by using a prestressed tendon anchorage device after stretching;
pouring concrete in the L-shaped notches facing the plate prefabricated members; and simultaneously pouring concrete of the structural beam and/or the shear wall laminated layer.
In a fourth aspect, the present invention provides a method of constructing a building structure having a fabricated floor, the method comprising the steps of:
installing the structural beam and/or the shear wall at a preset position;
installing a plurality of plate prefabricated parts with a rib penetrating channel at a preset position, wherein each plate prefabricated part comprises a plurality of middle plate prefabricated parts and side plate prefabricated parts, and the middle plate prefabricated parts are arranged between the two side plate prefabricated parts; the reinforcement penetrating channels of the adjacent plate prefabricated members are communicated; the invention does not limit the need to place an intermediate plate preform between two edge plate preforms.
Putting prestressed tendons in the communicated tendon passing channels;
stretching the prestressed tendon according to a preset tension force, and anchoring the prestressed tendon on the support for fixing the prestressed tendon by using a prestressed tendon anchorage device after stretching;
laying upper reinforcing steel bars of the plate on the plate prefabricated member;
and (3) pouring concrete of the floor slab and the laminated layer of the structural beam and/or the shear wall.
Further, the steps of the construction method according to the third and fourth aspects further include: and before the prestressed tendons are put in, the supporting piece is arranged at a preset position of the structural beam or the shear wall and is used for tightly supporting the plate prefabricated members on two sides of the structural beam or the shear wall.
Compared with the prior art, the invention has the beneficial effects that:
1) the prestressed tendons are arranged in the intersecting direction of the splicing seams of the prefabricated plate main body, and can continuously apply extrusion stress to the prefabricated plate main body, so that cracks can be prevented from being generated along the splicing seams after the floor slab is built;
2) the invention provides a floor slab assembly technology of a full precast slab, and the area of post-cast concrete of the floor slab of the full precast slab is very small, so that the assembly construction can be continuously and quickly carried out without waiting for the post-cast concrete to reach the strength. Therefore, after the assembly construction of each floor is completed, the floor can be immediately constructed upwards, the assembly construction speed is obviously accelerated, and the advantages of the assembly type building are fully exerted.
Drawings
Embodiments of the invention are described in further detail below with reference to the attached drawing figures, wherein:
fig. 1 is a front view of a building structure having a fabricated floor in example 1;
fig. 2 is a top plan view of the building structure with fabricated floor slab of example 1;
FIG. 3 is a schematic view showing the connection of the edge plate preform to the structural beam in example 1;
FIG. 4 is a schematic structural view of a cross section of the edge plate preform in the vertical direction of the splice seam in example 1;
FIG. 5 is a schematic structural view of a cross section of an intermediate plate preform in a direction perpendicular to a splice seam in example 1;
FIG. 6 is a schematic cross-sectional view of the prefabricated members of the side plates or the prefabricated members of the middle plate in the embodiment 1 along the direction parallel to the splicing seams;
fig. 7 is a front view of the building structure with the assembled floor slab of embodiment 2;
FIG. 8 is a schematic view showing the connection of the edge plate preform to the structural beam in example 2;
fig. 9 is a top plan view of a building structure having fabricated floor slabs with tendons traversing structural beams according to example 3;
fig. 10 is a flowchart of a construction method of a building structure having a fabricated floor according to example 4;
fig. 11 is a flowchart of a construction method of a building structure having a fabricated floor according to example 5.
Description of the labeling: 1. a plate preform body; 11. a middle plate preform; 12. a side plate prefabricated member; 13. a tendon passing channel; 14. a notch; 15. a first concrete cast-in-place member; 2. prestressed tendons; 31. a prestressed tendon support; 32. a prestressed tendon anchorage; 4. a connecting portion; 41. a plate bottom rib; 42. reinforcing steel bars on the upper part of the plate; 5. connecting a reinforcing member; 6. a second concrete cast-in-place member; 7. the concrete superposed layer is cast in situ; 8. a support member; 9. a local rib; 100. a structural beam.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.
In particular, the drawings and the preferred embodiments only describe the building structure including the assembly floor slab and the structural beam, and if the structural beam is located in the shear wall, the connection method of the assembly floor slab and the shear wall is the same, and the description of this embodiment is omitted.
Example 1
This embodiment discloses a building structure with fabricated floor slabs, in particular a building structure with fully prefabricated floor slabs, with reference to fig. 1-6. Comprises a structural beam 100 and a full precast slab floor slab; the structural beam 100 is provided with a second concrete cast-in-place part 6 for connecting the plate prefabricated part main body 1 and the structural beam 100; the second cast-in-place concrete part 6 is a cast-in-place concrete part of a laminated layer of the structural beam 100.
The fully precast slab floor slab comprises a slab precast member main body 1, a prestressed tendon 2, a prestressed tendon support 31 and a prestressed tendon anchorage 32; the panel preform body 1 may be, but is not limited to being, formed by casting concrete.
In some embodiments, the tendons 2 may be, but are not limited to, high-strength steel bars or steel strands.
The prefabricated member main body 1 comprises a plurality of plate prefabricated members, and referring to fig. 3-5, the plurality of plate prefabricated members comprise a plurality of middle plate prefabricated members 11 and side plate prefabricated members 12; the intermediate plate preforms 11 are each arranged between the edge plate preforms 12.
Specifically, the middle plate prefabricated member 11 and the side plate prefabricated member 12 are designed as a unidirectional plate, and the splicing direction of the plate prefabricated members and the force transmission direction of the plate prefabricated members can be, but are not limited to, perpendicular.
The inner parts of the middle plate prefabricated part 11 and the side plate prefabricated part 12 are respectively provided with at least one tendon passing channel 13 for placing the prestressed tendon 2, and the prestressed tendon 2 penetrates through the tendon passing channel 13;
the prestressed tendon support 31 is fixed on the side plate prefabricated member 12, and two ends of the prestressed tendon 2 are fixed on the prestressed tendon support 31 of the side plate prefabricated member 12 through prestressed tendon anchors 32. The prestressed tendon anchorage 32 is preferably an anchor with rib or a screw end rod mold at the fixed end, and is preferably a screw end rod anchorage at the tensioning end, and both the fixed end and the tensioning end adopt screw end rod anchorages in the embodiment.
The rib penetrating channel 13 can be but is not limited to a rib penetrating groove or a rib penetrating hole, and the included angle formed by the intersection of the direction of the rib penetrating channel and the splicing seam when the plate prefabricated part main bodies are spliced with each other can be but is not limited to 60-120 degrees, preferably 90 degrees; in this embodiment, the angle of intersection is 90 °.
The plate prefabricated member main body 1 further comprises a connecting part 4 for fixing the plate prefabricated member main body 1 on the structural beam 100, and the connecting part 4 comprises a plate bottom rib 41 and a plate upper reinforcing rib 42; one end of each of the bottom plate reinforcement 41 and the upper plate reinforcement 42 is disposed in the plate preform body 1, and the other end thereof is connected to the structural beam 100.
In this embodiment, the thicknesses of the intermediate plate prefabricated member 11 and the side plate prefabricated member 12 are the same as the thickness of the floor slab.
Both sides of the middle plate prefabricated member 11 and one side of the side plate prefabricated member 12 are provided with L-shaped notches 14; the oppositely arranged notches 14 form concave notches, and a first concrete cast-in-place piece 15 is arranged in each concave notch.
In some embodiments, within the "L" shaped rebate 14, local ribs or roughening may be provided for the purpose of increasing the bond between the slab preform and the first concrete cast in place; or for the purpose of improving the local stability of the plate preform when prestressing is applied, local ribs or the like. In this embodiment, local ribs 9 are provided in the "L" shaped notches 14 to improve the local stability of the plate preform when pre-stressing.
The steel wire mesh reinforced concrete structure further comprises a plurality of connecting reinforcing pieces 5, wherein the connecting reinforcing pieces 5 can be but are not limited to steel wire meshes; one end of the connecting reinforcement 5 is arranged in the slab preform and the other end is arranged in the first concrete cast-in-place member 15.
Specifically, when the middle plate prefabricated member 11 and the side plate prefabricated member 12 are prefabricated, L-shaped notches 14 are reserved at the splicing positions of the plate prefabricated member main bodies; and the thickness of prefab main part can set up according to the needs of floor, specifically, the intermediate lamella prefab reaches the thickness of sideboard prefab all is the same with the thickness of floor. The connection reinforcing member 5 is arranged in the notch 14 to reinforce the connection between the first concrete cast-in-place member 15 and the plate prefabricated member. Because except the L-shaped notch and the structural beam laminated layer, the rest positions do not need cast-in-place concrete laminated layers, after the assembly of each floor slab is finished, the construction can be immediately upwards carried out, and the assembly construction speed is obviously accelerated.
Example 2
The present embodiment discloses a building structure with assembled floor slabs, specifically a building structure with laminated floor slabs, and referring to fig. 7-8, the present embodiment is different from embodiment 1 in that: the upper reinforcing steel bars 42 of the plate are installed on site, and the upper surface of the prefabricated plate body 1, the structural beam 100 and the cast-in-place concrete superposed layer 7 are provided; the upper plate rebar 42 is located within the concrete composite layer.
Specifically, after the middle plate prefabricated member 11 and the side plate prefabricated member 12 are assembled, concrete is poured simultaneously on the upper surfaces of the middle plate prefabricated member 11 and the side plate prefabricated member 12 and the superposed layer of the structural beam 100 to form a concrete superposed layer cast-in-place member 7, and the concrete superposed layer cast-in-place member is an integral concrete solidification member.
Example 3
Referring to fig. 9, the present embodiment discloses a building structure having a fabricated floor, which is different from embodiment 1 or embodiment 2 in that: the prestressed tendon tandem plate prefabricated part main body 1 penetrates through the structural beam 100; the embodiment also comprises a plurality of supporting pieces 8; the supporting piece 8 is arranged in the overlapping layer of the structural beam 100, the length of the supporting piece is equal to the width of the structural beam 100, and the plate prefabricated pieces 1 on two sides of the structural beam are tightly propped during installation and construction.
The material and the cross-sectional shape of the support member are not limited in the present invention. In this embodiment, the supporting member is a steel pipe having a length equal to the width of the structural beam 100.
Example 4
The present embodiment discloses a construction method of embodiment 1, and with reference to fig. 10, the method includes the following steps:
s10: mounting the structural beam 100 at a predetermined position;
s11: installing a plurality of plate prefabricated parts with a rib penetrating channel 13 at a preset position, wherein each plate prefabricated part comprises a plurality of middle plate prefabricated parts 11 and two side plate prefabricated parts 12, and the middle plate prefabricated parts 11 are arranged between the two side plate prefabricated parts 12; the reinforcement penetrating channels 13 of the adjacent plate prefabricated members are communicated;
s12: the prestressed tendons 2 are arranged in the communicated tendon passing channels 13 in a penetrating mode;
s13: stretching the prestressed tendon 2 according to a preset tension force, and anchoring the prestressed tendon 2 on a support 31 of the fixed prestressed tendon 2 by using a prestressed tendon anchorage device 32 after stretching;
s14: pouring concrete in the "L" shaped notches 14 facing the slab preform; meanwhile, concrete is cast at the position of the stacking layer of the structural beam 100.
In this embodiment, the method further includes the following steps:
when the prestressed tendon is connected with the plate prefabricated member main body 1 in series, the prestressed tendon penetrates through the structural beam 100, before the prestressed tendon 2 is penetrated and placed, the supporting piece 8 is installed at a preset position in the structural beam overlapping layer, and the plate prefabricated members on two sides of the structural beam 100 are tightly propped.
In particular, for building structures with assembled floors, some of the floors with smaller span are prefabricated in one piece and do not need to be spliced, but it still falls within the scope of the technical solution of the present invention as long as the floors with the required splicing therein adopt the technology according to the technical essence of the present invention.
Example 5
The present embodiment discloses a construction method of embodiment 2, and with reference to fig. 11, the method includes the following steps:
s0: mounting the structural beam 100 at a predetermined position;
s1: installing a plurality of plate prefabricated parts with a rib penetrating channel 13 at a preset position, wherein each plate prefabricated part comprises a plurality of middle plate prefabricated parts 11 and side plate prefabricated parts 12, and the middle plate prefabricated parts 11 are arranged between the two side plate prefabricated parts 12; the reinforcement penetrating channels 13 of the adjacent plate prefabricated members are communicated;
s2: the prestressed tendons 2 are arranged in the communicated tendon passing channels 13 in a penetrating mode;
s3: stretching the prestressed tendon 2 according to a preset tension force, and anchoring the prestressed tendon 2 on a support 31 of the fixed prestressed tendon 2 by using a prestressed tendon anchorage device 32 after stretching;
s4: laying upper reinforcing steel bars of the plate on the plate prefabricated member;
s5: concrete is poured on the upper surface of the slab preform and at the laminated layer of the structural beam 100.
In this embodiment, the method further includes the following steps:
when the prestressed tendon is connected with the plate prefabricated member main body 1 in series, the prestressed tendon penetrates through the structural beam 100, before the prestressed tendon 2 is penetrated and placed, the supporting piece 8 is installed at a preset position in the structural beam overlapping layer, and the plate prefabricated members on two sides of the structural beam 100 are tightly propped.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, so that any modification, equivalent change and modification made to the above embodiment according to the technical spirit of the present invention are within the scope of the technical solution of the present invention.
Claims (14)
1. An assembled floor slab is characterized by comprising a prefabricated part main body, a prestressed tendon support and a prestressed tendon anchorage;
the prefabricated part main body comprises a plurality of plate prefabricated parts, and the plate prefabricated parts comprise a plurality of middle plate prefabricated parts and side plate prefabricated parts; the middle plate prefabricated members are arranged between the side plate prefabricated members;
the inner parts of the middle plate prefabricated part and the side plate prefabricated part are respectively provided with at least one tendon passing channel for placing the prestressed tendon, and the prestressed tendon is arranged in the tendon passing channel in a penetrating way;
the prestressed tendon support is fixed on the side plate prefabricated member, and two ends of the prestressed tendon are fixed on the prestressed tendon support of the side plate prefabricated member through the prestressed tendon anchorage device.
2. The fabricated floor of claim 1, wherein the tendon-passing channel is a tendon-passing groove or a tendon-passing hole.
3. The fabricated floor of claim 1, wherein an included angle between the direction of the reinforcement penetration channel and an intersection of splicing seams when the plate prefabricated members are spliced with each other is 60-120 °.
4. The fabricated floor of claim 1, further comprising a slab upper reinforcement and concrete laminated layer cast-in-place member; the concrete laminated layer cast-in-place piece is arranged on the upper layer of the plate prefabricated part main body; and the upper steel bars of the plates are positioned in the concrete laminated layer.
5. The fabricated floor of claim 1, further comprising a connection for securing the slab preform body to a structural beam and/or shear wall.
6. The fabricated floor of claim 5, wherein the slab preform is provided with a connection portion at a position where the slab preform is connected to the structural beam and/or the shear wall, the connection portion including slab bottom ribs and slab upper reinforcing bars; and one end of each of the bottom plate reinforcing steel bar and the upper plate reinforcing steel bar is arranged in the plate prefabricated part main body, and the other end of each of the bottom plate reinforcing steel bar and the upper plate reinforcing steel bar is connected with the structural beam and/or the shear wall.
7. An assembled floor slab as claimed in claim 1, wherein the maximum thickness of the intermediate slab pre-forms and the side slab pre-forms are both the same as the thickness of the floor slab.
8. The fabricated floor of claim 1, wherein both sides of the middle plate preform and one side of the side plate preform are provided with an "L" -shaped notch; the notches which are oppositely arranged form concave notches, and a first concrete cast-in-place piece is arranged in each concave notch.
9. The fabricated floor of claim 8, further comprising a plurality of connection reinforcements; one end of the connecting reinforcement is arranged in the plate prefabricated member, and the other end of the connecting reinforcement is arranged in the first concrete cast-in-place member.
10. The fabricated floor of claim 1, further comprising a plurality of support members; the supporting pieces are arranged in the superposed layers of the structural beams or the shear walls, the length of the supporting pieces is equal to the width of the structural beams or the shear walls, and the supporting pieces are used for tightly supporting the plate prefabricated pieces on the two sides of the structural beams or the shear walls when the prestressed tendons cross the structural beams or the shear walls.
11. A building structure having fabricated floor comprising structural beams and/or shear walls and comprising the fabricated floor of any of claims 1-10; the structural beam and/or the shear wall is provided with a second concrete cast-in-place part for connecting the slab prefabricated member main body with the structural beam and/or the shear wall.
12. A method of constructing a building structure having an assembled floor, the method comprising the steps of:
installing the structural beam and/or the shear wall at a preset position;
installing a plurality of plate prefabricated parts with a rib penetrating channel at a preset position, wherein each plate prefabricated part comprises a plurality of middle plate prefabricated parts and side plate prefabricated parts, and the middle plate prefabricated parts are arranged between the two side plate prefabricated parts; the reinforcement penetrating channels of the adjacent plate prefabricated members are communicated;
putting prestressed tendons in the communicated tendon passing channels;
stretching the prestressed tendon according to a preset tension force, and anchoring the prestressed tendon on a support for fixing the prestressed tendon after stretching;
pouring concrete in the L-shaped notches facing the plate prefabricated members; and simultaneously pouring concrete of the structural beam and/or the shear wall laminated layer.
13. A method of constructing a building structure having an assembled floor, the method comprising the steps of:
installing the structural beam and/or the shear wall at a preset position;
installing a plurality of plate prefabricated parts with a rib penetrating channel at a preset position, wherein each plate prefabricated part comprises a plurality of middle plate prefabricated parts and side plate prefabricated parts, and the middle plate prefabricated parts are arranged between the two side plate prefabricated parts; the reinforcement penetrating channels of the adjacent plate prefabricated members are communicated;
putting prestressed tendons in the communicated tendon passing channels;
stretching the prestressed tendon according to a preset tension force, and anchoring the prestressed tendon on a support for fixing the prestressed tendon after stretching;
laying upper reinforcing steel bars of the plate on the plate prefabricated member;
and (3) pouring concrete of the floor slab and the laminated layer of the structural beam and/or the shear wall.
14. A method of constructing a building structure having a fabricated floor according to claim 12 or 13, wherein the steps further comprise: before the prestressed tendons are put in, the supporting pieces are installed at preset positions of the structural beam or the shear wall, and the plate prefabricated members on two sides of the structural beam or the shear wall are tightly propped.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010866672 | 2020-08-16 | ||
| CN2020108666726 | 2020-08-16 | ||
| CN202011128529 | 2020-10-09 | ||
| CN2020111285293 | 2020-10-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112502337A true CN112502337A (en) | 2021-03-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023088119.9U Active CN215054412U (en) | 2020-08-16 | 2020-12-17 | Assembly floor and building structure with same |
| CN202011498124.9A Pending CN112502337A (en) | 2020-08-16 | 2020-12-17 | Fabricated floor, building structure with fabricated floor and construction method of building structure |
| CN202121904434.6U Active CN216920891U (en) | 2020-08-16 | 2021-08-13 | Assembly floor and have assembly floor's building structure |
| CN202110928964.2A Pending CN114045967A (en) | 2020-08-16 | 2021-08-13 | Fabricated floor, building structure with fabricated floor and construction method of building structure |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023088119.9U Active CN215054412U (en) | 2020-08-16 | 2020-12-17 | Assembly floor and building structure with same |
Family Applications After (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121904434.6U Active CN216920891U (en) | 2020-08-16 | 2021-08-13 | Assembly floor and have assembly floor's building structure |
| CN202110928964.2A Pending CN114045967A (en) | 2020-08-16 | 2021-08-13 | Fabricated floor, building structure with fabricated floor and construction method of building structure |
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| CN (4) | CN215054412U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113356428A (en) * | 2021-06-09 | 2021-09-07 | 济南市市政工程设计研究院（集团）有限责任公司 | Prestress superposed integral floor system applied to fabricated building and construction method |
| CN117386022A (en) * | 2023-11-28 | 2024-01-12 | 杭州嘉图建筑节能科技有限公司 | Assembled wall and floor slab connecting structure and construction method |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115450327A (en) * | 2022-09-01 | 2022-12-09 | 深圳市臻道建筑科技有限公司 | Method for constructing box-type building and box-type building constructed by same |
-
2020
- 2020-12-17 CN CN202023088119.9U patent/CN215054412U/en active Active
- 2020-12-17 CN CN202011498124.9A patent/CN112502337A/en active Pending
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2021
- 2021-08-13 CN CN202121904434.6U patent/CN216920891U/en active Active
- 2021-08-13 CN CN202110928964.2A patent/CN114045967A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113356428A (en) * | 2021-06-09 | 2021-09-07 | 济南市市政工程设计研究院（集团）有限责任公司 | Prestress superposed integral floor system applied to fabricated building and construction method |
| CN117386022A (en) * | 2023-11-28 | 2024-01-12 | 杭州嘉图建筑节能科技有限公司 | Assembled wall and floor slab connecting structure and construction method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN215054412U (en) | 2021-12-07 |
| CN216920891U (en) | 2022-07-08 |
| CN114045967A (en) | 2022-02-15 |
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