CN106760115B - Light assembled composite floor slab and construction method thereof - Google Patents

Light assembled composite floor slab and construction method thereof Download PDF

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Publication number
CN106760115B
CN106760115B CN201710127936.4A CN201710127936A CN106760115B CN 106760115 B CN106760115 B CN 106760115B CN 201710127936 A CN201710127936 A CN 201710127936A CN 106760115 B CN106760115 B CN 106760115B
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longitudinal
steel
precast slabs
beams
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CN106760115A (en
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王新堂
于耀
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Ningbo University
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Ningbo University
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    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B5/00Floors; Floor construction with regard to insulation; Connections specially adapted therefor
    • E04B5/16Load-carrying floor structures wholly or partly cast or similarly formed in situ
    • E04B5/32Floor structures wholly cast in situ with or without form units or reinforcements
    • E04B5/36Floor structures wholly cast in situ with or without form units or reinforcements with form units as part of the floor
    • E04B5/38Floor structures wholly cast in situ with or without form units or reinforcements with form units as part of the floor with slab-shaped form units acting simultaneously as reinforcement; Form slabs with reinforcements extending laterally outside the element

Abstract

The invention relates to a light assembled composite floor slab and a construction method thereof, wherein the light assembled composite floor slab comprises a longitudinal support framework positioned at the lower part, an A-type precast slab and a B-type precast slab which are arranged on the longitudinal support framework, and a post-cast concrete or a post-cast cement mortar (11) layer which is cast above the longitudinal support framework, the A-type precast slab and the B-type precast slab. Compared with the prior art, the invention has the advantages that: (1) the small-sized combined prefabricated plate and the light component are adopted, large-sized machinery is not needed, and the construction is more convenient; (2) the prefabrication degree is high, temporary support is not needed, and the construction period is shorter; (3) the assembly rate is higher.

Description

Light assembled composite floor slab and construction method thereof
Technical Field
The invention relates to a light assembled composite floor slab and a construction method thereof, belonging to the field of structural engineering.
Background
In building structures, particularly multi-story high-rise structures, profiled steel plates-common concrete composite floor systems, steel bar truss floor systems, common reinforced concrete rib beam type floor systems or reinforced concrete # -shaped floor systems and the like are mostly adopted at present. The floor systems have many defects, such as wet operation construction on site, large floor slab weight, incapability of realizing assembly and difficult pipeline laying.
Disclosure of Invention
The invention aims to solve the primary technical problem of providing a light assembled composite floor slab which has enough bearing capacity, reduces the weight of the whole structure due to light dead weight, reduces the foundation cost, has higher assembly rate and simpler construction method compared with the existing floor slab.
The invention further aims to solve the technical problem of providing a construction method of the light composite floor slab.
The technical scheme adopted by the invention for solving the above technical primary problems is as follows: light assembled composite floor, its characterized in that: comprises that
The longitudinal supporting framework comprises a plurality of longitudinal supporting beams which are longitudinally arranged in parallel at intervals, two ends of each longitudinal supporting beam are supported on the end supporting beams, and the transverse cross section of each longitudinal supporting beam is rectangular;
the A-type precast slab comprises two A-type longitudinal steel beams which are longitudinally arranged in parallel at intervals, two transverse steel beams of which two ends are respectively connected between two end parts of the two A-type longitudinal steel beams, a steel wire mesh sheet arranged in a rectangular space enclosed by the two A-type longitudinal steel beams and the two transverse steel beams, and concrete poured between the two A-type longitudinal steel beams and burying the two transverse steel beams and the steel wire mesh sheet; the transverse steel beam is a steel structure body which is hollow inside, has a rectangular middle section and has an outward extending double-wing plate at the lower end;
the B-type precast slab comprises an A-type longitudinal steel beam, a B-type longitudinal steel beam which is longitudinally arranged in parallel with the A-type longitudinal steel beam at intervals, two transverse steel beams of which two ends are respectively connected between two end parts of the A-type longitudinal steel beam and the B-type longitudinal steel beam, a steel wire mesh which is arranged in a rectangular space enclosed by the A-type longitudinal steel beam, the B-type longitudinal steel beam and the two transverse steel beams, and concrete which is poured between the A-type longitudinal steel beam and the B-type longitudinal steel beam and buries the two transverse steel beams and the steel wire mesh; the steel structure body is characterized in that the A-type longitudinal steel beam is hollow inside, the lower part of the A-type longitudinal steel beam is provided with an opening, and the longitudinal support beam can be sleeved in the steel structure body through the opening; the transverse steel beam is a steel structure body which is hollow inside, has a rectangular middle section and has an outward extending double wing plate at the lower end;
the A-shaped precast slabs are arranged at two ends of the longitudinal end part of the longitudinal support framework, and a longitudinal support beam at the end part of the longitudinal support framework and a longitudinal support beam adjacent to the end part are sleeved in the A-shaped precast slabs through two A-shaped longitudinal steel beams respectively through openings at the lower parts of the A-shaped precast slabs; the B-type precast slab is arranged in the middle of the longitudinal support framework, the B-type longitudinal steel beam in the B-type precast slab sleeves the longitudinal support beam sleeved with the A-type longitudinal steel beam through the lower opening of the B-type precast slab, and the A-type longitudinal steel beam in the B-type precast slab sleeves the longitudinal support beam in the middle of the longitudinal support framework through the lower opening of the A-type longitudinal steel beam;
and pouring concrete or cement mortar above the longitudinal support framework and the A-type precast slab and the B-type precast slab.
And a plurality of shear-resistant studs are vertically arranged on the A-type precast slab and the B-type precast slab when concrete is poured.
A plurality of A-type prefabricated plates are arranged at the longitudinal end part of the longitudinal supporting framework, and a plurality of B-type prefabricated plates are arranged in the middle of the longitudinal supporting framework; two adjacent A-type prefabricated plates are connected with the longitudinal supporting beam positioned at the end part through an edge beam connecting piece, two adjacent A-type prefabricated plates are connected with the longitudinal supporting beam positioned at the middle part through a middle beam connecting piece, and two adjacent B-type prefabricated plates are connected with the longitudinal supporting beam positioned at the middle part through a middle beam connecting piece; the side beam connecting piece comprises a main body with a horizontal section in a shape of 'II' and a single-side extending piece which is arranged on one side of the lower part of the main body and connected with the main body; the centre sill connecting piece includes that transverse section is "II" the main part and sets up the two-sided extension piece of being connected with the main part in main part lower part both sides.
The transverse steel beams in two adjacent A-type precast slabs and two adjacent B-type precast slabs are connected through a middle cross beam connecting piece; the longitudinal supporting beams are connected with the end supporting beams through side-beam connecting pieces.
The technical scheme adopted by the invention for solving the further technical problems is as follows: the construction method of the light fabricated composite floor slab is characterized in that: the method comprises the following steps:
firstly, processing and manufacturing a longitudinal support beam, an A-type longitudinal steel beam, a B-type longitudinal steel beam, a transverse steel beam, an edge beam connecting piece, a middle cross beam connecting piece, an edge cross beam connecting piece and a steel wire mesh sheet in a factory;
step two, assembling the A-type precast slabs and the B-type precast slabs in a factory, namely: connecting and assembling an A-type longitudinal steel beam, a transverse steel beam and a steel wire mesh into an A-type assembly unit through a No. 1 small bolt, connecting and assembling the A-type longitudinal steel beam, a B-type longitudinal steel beam, a transverse steel beam and the steel wire mesh into a B-type assembly unit through bolts, pouring concrete on the A-type assembly unit and the B-type assembly unit to prepare an A-type precast slab and a B-type precast slab, and vertically embedding a certain number of shear-resistant studs when pouring the concrete;
fixing the longitudinal support beam on the end support beam by using a cross beam connecting piece to form a longitudinal support framework, and fixing the cross beam connecting piece and the end support beam by using bolts; then, the A-type precast slabs and the B-type precast slabs are arranged on the longitudinal support framework, so that two A-type longitudinal steel beams in the A-type precast slabs are sleeved outside the longitudinal support beam, the A-type longitudinal steel beams in the B-type precast slabs are sleeved outside the longitudinal support beam, and the B-type longitudinal steel beams are sleeved outside the longitudinal support beam which is already sleeved with the A-type longitudinal steel beams; then, arranging an edge beam connecting piece between two adjacent A-shaped precast slabs and a longitudinal supporting beam positioned at the end part, arranging a middle beam connecting piece between two adjacent A-shaped precast slabs, two adjacent B-shaped precast slabs and the longitudinal supporting beam positioned at the middle part, and fastening the A-shaped precast slabs and the B-shaped precast slabs with the longitudinal supporting beams by using bolts;
and step four, pouring concrete or pouring cement mortar above the longitudinal support framework and the A-type precast slabs and the B-type precast slabs.
Compared with the prior art, the invention has the advantages that:
(1) the small-sized combined prefabricated plate and the light component are adopted, large-sized machinery is not needed, and the construction is more convenient;
(2) the prefabrication degree is high, temporary support is not needed, and the construction period is shorter;
(3) the assembly rate is higher;
(4) the thickness of the floor slab is small, so that the use space can be enlarged;
(5) the integrity and the ductility are good;
(6) the pipeline can be laid, and the applicability is high;
(7) the bottom surface of the floor slab is flat, so that any decoration treatment is convenient;
(8) the application span range is large, and the method can be used for any building floor (including a platform structure).
Drawings
FIG. 1 is a schematic perspective view of a longitudinal support frame according to an embodiment of the present invention;
FIG. 2 is a schematic perspective view of the prefabricated slab A according to the embodiment of the present invention before concrete is poured in the prefabricated slab A;
FIG. 3 is a schematic perspective view of a concrete pouring process of the A-type precast slab in the embodiment of the invention;
FIG. 4 is a schematic perspective view of a structure of the A-type precast slab after concrete is poured therein according to the embodiment of the invention;
FIG. 5 is a schematic perspective view of a B-type precast slab of an embodiment of the present invention before concrete is poured therein;
FIG. 6 is a schematic perspective view of a concrete poured into the prefabricated slab of type B according to an embodiment of the present invention;
fig. 7 is a schematic perspective view of a light fabricated composite floor slab according to an embodiment of the present invention before concrete is poured after concrete is not poured;
FIG. 8 is a view of the joint seam connection of the portion I of FIG. 7;
fig. 9 is a schematic perspective view of concrete pouring performed after the light fabricated composite floor slab is poured according to the embodiment of the invention;
fig. 10 is a schematic perspective view of a concrete poured lightweight fabricated composite floor slab in an embodiment of the present invention;
FIG. 11 is a schematic structural view of a longitudinal support beam according to an embodiment of the present invention;
FIG. 12 is a schematic structural view of an A-shaped longitudinal steel beam according to an embodiment of the present invention;
FIG. 13 is a schematic structural view of a B-shaped longitudinal steel beam according to an embodiment of the present invention;
FIG. 14 is a schematic structural view of a transverse steel beam according to an embodiment of the present invention;
FIG. 15 is a schematic structural view of an edge beam connection according to an embodiment of the present invention;
FIG. 16 is a schematic structural view of an intermediate beam connection according to an embodiment of the present invention;
FIG. 17 is a schematic structural view of a center cross member connection in an embodiment of the present invention;
FIG. 18 is a schematic structural diagram of a side rail connector according to an embodiment of the present invention.
Detailed Description
The invention is described in further detail below with reference to the following examples of the drawings.
The invention provides a light assembled composite floor slab, comprising:
a longitudinal supporting framework, which is described with reference to fig. 1, and comprises a plurality of longitudinal supporting beams 1 arranged longitudinally in parallel at intervals, wherein two ends of each longitudinal supporting beam 1 are supported on end supporting beams 12, and the transverse cross section of each longitudinal supporting beam 1 is rectangular, which is shown in fig. 11;
the A-type precast slab comprises two A-type longitudinal steel beams 2 which are longitudinally arranged in parallel at intervals, two transverse steel beams 4 of which two ends are respectively connected between two ends of the two A-type longitudinal steel beams 2, a steel wire mesh 8 arranged in a rectangular space enclosed by the two A-type longitudinal steel beams 2 and the two transverse steel beams 4, and concrete 9 poured between the two A-type longitudinal steel beams 2 and burying the two transverse steel beams 4 and the steel wire mesh 8, and referring to the drawings of FIGS. 2 to 4; the a-type longitudinal steel beam 2 is a steel structure body which is hollow inside, has an opening at the lower part, and can sleeve the longitudinal support beam 1 through the opening, as shown in fig. 12; the transverse steel beam 4 is a steel structure which is hollow inside, has a rectangular middle section and has an overhanging double-wing plate at the lower end, and is shown in fig. 14;
the B-type precast slab comprises an A-type longitudinal steel beam 2, a B-type longitudinal steel beam 3 longitudinally arranged in parallel with the A-type longitudinal steel beam 2 at intervals, two transverse steel beams 4 with two ends respectively connected between the two ends of the A-type longitudinal steel beam 2 and the two ends of the B-type longitudinal steel beam 3, a steel wire mesh 8 arranged in a rectangular space enclosed by the A-type longitudinal steel beam 2, the B-type longitudinal steel beam 3 and the two transverse steel beams 4, and concrete 9 poured between the A-type longitudinal steel beam 2 and the B-type longitudinal steel beam 3 and burying the two transverse steel beams 4 and the steel wire mesh 8, wherein the B-type precast slab comprises the A-type longitudinal steel beam 2, the B-type longitudinal steel beam 3 and the concrete 9; the a-type longitudinal steel beam 2 is a steel structure body which is hollow inside, has an opening at the lower part, and can sleeve the longitudinal support beam 1 through the opening, as shown in fig. 12; the B-shaped longitudinal steel beam 3 is a steel structure which is hollow inside, has an opening at the lower part and can sleeve the A-shaped longitudinal steel beam 2 through the opening, and the B-shaped longitudinal steel beam is shown in figure 13; the transverse steel beam 4 is a steel structure which is hollow inside, has a rectangular middle section and has an overhanging double-wing plate at the lower end, and is shown in fig. 14;
the A-type precast slabs are arranged at two ends of the longitudinal end part of the longitudinal support framework, and two A-type longitudinal steel beams 2 in the A-type precast slabs are respectively sleeved with a longitudinal support beam 1 at the end part of the longitudinal support framework and a longitudinal support beam 1 adjacent to the end part through openings at the lower parts of the two A-type longitudinal steel beams; the B-type precast slab is arranged in the middle of the longitudinal support framework, a longitudinal support beam 1 sleeved with an A-type longitudinal steel beam 2 is sleeved in the B-type longitudinal steel beam 3 in the B-type precast slab through an opening at the lower part of the B-type precast slab, and the longitudinal support beam 1 in the middle of the longitudinal support framework is sleeved in the A-type longitudinal steel beam 2 in the B-type precast slab through an opening at the lower part of the B-type precast slab; as shown in fig. 7;
and post-pouring concrete or post-pouring cement mortar 11 poured above the longitudinal support framework and the A-type precast slabs and the B-type precast slabs.
In addition, the a-type precast slab and the B-type precast slab are both vertically provided with a plurality of shear studs 10 when the concrete 9 is poured.
In the embodiment, a plurality of A-type precast slabs are arranged at the longitudinal end part of the longitudinal supporting framework, and a plurality of B-type precast slabs are arranged in the middle of the longitudinal supporting framework; two adjacent A-type prefabricated plates are connected with the longitudinal supporting beam 1 positioned at the end part through an edge beam connecting piece 5-1, two adjacent A-type prefabricated plates are connected with the longitudinal supporting beam 1 positioned at the middle part through an intermediate beam connecting piece 5-2, and two adjacent B-type prefabricated plates are connected with the longitudinal supporting beam 1 positioned at the middle part through an intermediate beam connecting piece 5-2, which is shown in figures 9 and 10; the boundary beam connecting piece 5-1 comprises a main body with a horizontal section being 'pi' and single-sided extension pieces arranged on one side of the lower part of the main body and connected with the main body, as shown in fig. 15, and the middle beam connecting piece 5-2 comprises a main body with a horizontal section being 'pi' and double-sided extension pieces arranged on two sides of the lower part of the main body and connected with the main body, as shown in fig. 16; the adjacent two A-type precast slabs and the transverse steel beams 4 in the adjacent two B-type precast slabs are connected through middle cross beam connecting pieces 6, and as shown in figure 8, the longitudinal support beam 1 and the end support beam 12 are connected through side cross beam connecting pieces 7. Cross sections of the middle beam connection 6 and the side beam connection 7 are shown in fig. 17 and 18.
The construction method of the light fabricated composite floor slab in the embodiment comprises the following steps:
firstly, processing and manufacturing a longitudinal support beam 1, an A-type longitudinal steel beam 2, a B-type longitudinal steel beam 3, a transverse steel beam 4, an edge beam connecting piece 5-1, a middle beam connecting piece 5-2, a middle cross beam connecting piece 6, an edge cross beam connecting piece 7 and a steel wire mesh sheet 8 in a factory;
step two, assembling the A-type precast slabs and the B-type precast slabs in a factory, namely: the method comprises the following steps of connecting and assembling an A-type longitudinal steel beam 2, a transverse steel beam 4 and a steel wire mesh sheet 8 into an A-type assembly unit through a No. 1 small bolt, connecting and assembling the A-type longitudinal steel beam 2, a B-type longitudinal steel beam 3, the transverse steel beam 4 and the steel wire mesh sheet 8 into a B-type assembly unit through bolts, pouring concrete 9 on the A-type assembly unit and the B-type assembly unit to manufacture an A-type precast slab and a B-type precast slab, and vertically embedding a certain number of shear-resistant bolt nails 10 when the concrete 9 is poured;
fixing the longitudinal support beam on the end part support beam 12 through the side beam connecting piece 7 to form a longitudinal support framework, and fixing the beam connecting piece 7 and the end part support beam 12 through bolts; then, the A-type precast slabs and the B-type precast slabs are arranged on the longitudinal support framework, two A-type longitudinal steel beams 2 in the A-type precast slabs are sleeved outside the longitudinal support beam 1, the A-type longitudinal steel beams 2 in the B-type precast slabs are sleeved outside the longitudinal support beam 1, and the B-type longitudinal steel beams 3 are sleeved outside the longitudinal support beam 1 which is already sleeved with the A-type longitudinal steel beams 2; then, arranging edge beam connecting pieces 5-1 between two adjacent A-type precast slabs and the longitudinal support beam 1 positioned at the end part, arranging middle beam connecting pieces 5-2 between two adjacent A-type precast slabs, two adjacent B-type precast slabs and the longitudinal support beam 1 positioned at the middle part, and fastening the A-type precast slabs and the B-type precast slabs with the longitudinal support beam 1 by using bolts;
and step four, pouring concrete or cement mortar 11 above the longitudinal support framework and the A-type precast slabs and the B-type precast slabs.

Claims (5)

1. The utility model provides a light assembled composite floor which characterized in that: comprises that
The longitudinal supporting framework comprises a plurality of longitudinal supporting beams (1) which are longitudinally arranged in parallel at intervals, two ends of each longitudinal supporting beam (1) are supported on the end supporting beam (12), and the transverse section of each longitudinal supporting beam (1) is rectangular;
the A-type precast slab comprises two A-type longitudinal steel beams (2) which are longitudinally arranged in parallel at intervals, two transverse steel beams (4) of which two ends are respectively connected between two ends of the two A-type longitudinal steel beams (2), a steel wire mesh (8) which is arranged in a rectangular space enclosed by the two A-type longitudinal steel beams (2) and the two transverse steel beams (4), and concrete (9) which is poured between the two A-type longitudinal steel beams (2) and buries the two transverse steel beams (4) and the steel wire mesh (8); the A-shaped longitudinal steel beam (2) is a steel structure body which is hollow inside, is provided with an opening at the lower part and can sleeve the longitudinal supporting beam (1) through the opening, and the transverse steel beam (4) is a steel structure body which is hollow inside, has a rectangular middle section and is provided with an outward-extending double-wing plate at the lower end;
the B-type precast slab comprises an A-type longitudinal steel beam (2), a B-type longitudinal steel beam (3) which is longitudinally arranged in parallel with the A-type longitudinal steel beam (2) at intervals, two transverse steel beams (4) of which two ends are respectively connected between the two ends of the A-type longitudinal steel beam (2) and the two ends of the B-type longitudinal steel beam (3), a steel wire mesh (8) which is arranged in a rectangular space enclosed by the A-type longitudinal steel beam (2), the B-type longitudinal steel beam (3) and the two transverse steel beams (4), and concrete (9) which is poured between the A-type longitudinal steel beam (2) and the B-type longitudinal steel beam (3) and buries the two transverse steel beams (4) and the steel wire mesh (8); the A-type longitudinal steel beam (2) is a steel structure body which is hollow inside and provided with an opening at the lower part, and the longitudinal support beam (1) can be sleeved in the steel structure body through the opening, and the B-type longitudinal steel beam (3) is a steel structure body which is hollow inside and provided with an opening at the lower part, and the A-type longitudinal steel beam (2) can be sleeved in the steel structure body through the opening; the transverse steel beam (4) is a steel structure body which is hollow inside, has a rectangular middle section and has an outward extending double wing plate at the lower end;
the A-shaped precast slabs are arranged at two ends of the longitudinal end part of the longitudinal support framework, and two A-shaped longitudinal steel beams (2) in the A-shaped precast slabs are respectively sleeved with a longitudinal support beam (1) at the end part of the longitudinal support framework and a longitudinal support beam (1) adjacent to the end part through openings at the lower parts of the two A-shaped longitudinal steel beams; the B-type precast slab is arranged in the middle of the longitudinal support framework, a longitudinal support beam (1) sleeved with an A-type longitudinal steel beam (2) is sleeved in the B-type longitudinal steel beam (3) in the B-type precast slab through an opening at the lower part of the B-type precast slab, and the longitudinal support beam (1) in the middle of the longitudinal support framework is sleeved in the A-type longitudinal steel beam (2) in the B-type precast slab through an opening at the lower part of the B-type precast slab;
and post-pouring concrete or post-pouring cement mortar (11) poured above the longitudinal support framework and the A-type precast slabs and the B-type precast slabs.
2. The lightweight fabricated composite floor slab of claim 1, wherein: a plurality of shear-resistant studs (10) are vertically arranged on the A-type precast slab and the B-type precast slab when concrete (9) is poured.
3. The lightweight fabricated composite floor slab of claim 2, wherein: a plurality of A-type prefabricated plates are arranged at the longitudinal end part of the longitudinal supporting framework, and a plurality of B-type prefabricated plates are arranged in the middle of the longitudinal supporting framework; two adjacent A-type prefabricated plates are connected with the longitudinal supporting beam (1) positioned at the end part through an edge beam connecting piece (5-1), two adjacent A-type prefabricated plates are connected with the longitudinal supporting beam (1) positioned in the middle through a middle beam connecting piece (5-2), and two adjacent B-type prefabricated plates are connected with the longitudinal supporting beam (1) positioned in the middle through a middle beam connecting piece (5-2); the boundary beam connecting piece (5-1) comprises a main body with a horizontal section in the shape of a Pi and a single-side extending piece which is arranged on one side of the lower part of the main body and connected with the main body; the middle beam connecting piece (5-2) comprises a main body with a horizontal section being n-shaped and double-side extending pieces arranged on two sides of the lower part of the main body and connected with the main body.
4. The lightweight fabricated composite floor slab of claim 3, wherein: the transverse steel beams (4) in two adjacent A-type precast slabs and two adjacent B-type precast slabs are connected through a middle cross beam connecting piece (6); the longitudinal supporting beam (1) is connected with the end supporting beam (12) through a side beam connecting piece (7).
5. A construction method of a light fabricated composite floor slab as claimed in claim 4, wherein: the method comprises the following steps:
firstly, a longitudinal support beam (1), an A-type longitudinal steel beam (2), a B-type longitudinal steel beam (3), a transverse steel beam (4), an edge beam connecting piece (5-1), a middle beam connecting piece (5-2), a middle cross beam connecting piece (6), an edge cross beam connecting piece (7) and a steel wire mesh (8) are machined and manufactured in a factory;
step two, assembling the A-type precast slabs and the B-type precast slabs in a factory, namely: the method comprises the following steps that A-type longitudinal steel beams (2), transverse steel beams (4) and steel wire meshes (8) are connected and assembled into A-type assembly units through small bolts of No. 1, A-type longitudinal steel beams (2), B-type longitudinal steel beams (3), transverse steel beams (4) and steel wire meshes (8) are connected and assembled into B-type assembly units through bolts, concrete (9) is poured on the A-type assembly units and the B-type assembly units to form A-type precast slabs and B-type precast slabs, and a certain number of shear-resistant studs (10) are vertically embedded when the concrete (9) is poured;
fixing the longitudinal support beam on the end support beam (12) through the side beam connecting piece (7) to form a longitudinal support framework, and fixing the beam connecting piece (7) and the end support beam (12) through bolts; then, the A-type precast slabs and the B-type precast slabs are arranged on the longitudinal support framework, two A-type longitudinal steel beams (2) in the A-type precast slabs are sleeved outside the longitudinal support beam (1), the A-type longitudinal steel beams (2) in the B-type precast slabs are sleeved outside the longitudinal support beam (1), and the B-type longitudinal steel beams (3) are sleeved outside the longitudinal support beam (1) which is already sleeved with the A-type longitudinal steel beams (2); then, edge beam connecting pieces (5-1) are arranged between two adjacent A-type precast slabs and the longitudinal supporting beam (1) positioned at the end part, middle beam connecting pieces (5-2) are arranged between two adjacent A-type precast slabs, two adjacent B-type precast slabs and the longitudinal supporting beam (1) positioned in the middle part, and the A-type precast slabs and the B-type precast slabs are fastened with the longitudinal supporting beam (1) by bolts;
and step four, pouring concrete or pouring cement mortar (11) above the longitudinal supporting framework and the A-type precast slabs and the B-type precast slabs.
CN201710127936.4A 2017-03-06 2017-03-06 Light assembled composite floor slab and construction method thereof Active CN106760115B (en)

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