CN114892882A - Prefabricated wallboard with assembled cross-layer connecting beam, connecting structure and construction method of prefabricated wallboard - Google Patents
Prefabricated wallboard with assembled cross-layer connecting beam, connecting structure and construction method of prefabricated wallboard Download PDFInfo
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- CN114892882A CN114892882A CN202210666614.8A CN202210666614A CN114892882A CN 114892882 A CN114892882 A CN 114892882A CN 202210666614 A CN202210666614 A CN 202210666614A CN 114892882 A CN114892882 A CN 114892882A
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
- E04C2/02—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
- E04C2/04—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of concrete or other stone-like material; of asbestos cement; of cement and other mineral fibres
- E04C2/044—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of concrete or other stone-like material; of asbestos cement; of cement and other mineral fibres of concrete
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
- E04C2/02—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
- E04C2/04—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of concrete or other stone-like material; of asbestos cement; of cement and other mineral fibres
- E04C2/06—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of concrete or other stone-like material; of asbestos cement; of cement and other mineral fibres reinforced
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
- E04C2/30—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
- E04C2/44—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the purpose
- E04C2/46—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the purpose specially adapted for making walls
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
- E04C3/20—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of concrete or other stone-like material, e.g. with reinforcements or tensioning members
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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
- E04G13/00—Falsework, forms, or shutterings for particular parts of buildings, e.g. stairs, steps, cornices, balconies foundations, sills
- E04G13/04—Falsework, forms, or shutterings for particular parts of buildings, e.g. stairs, steps, cornices, balconies foundations, sills for lintels, beams, or transoms to be encased separately; Special tying or clamping means therefor
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/02—Conveying or working-up concrete or similar masses able to be heaped or cast
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/14—Conveying or assembling building elements
Abstract
The utility model provides a prefabricated wallboard of even roof beam of area assembled stride layer, joint construction and worker's method, the gate-type prefab includes this layer wall portion, this layer of prefabricated portion of even roof beam of striding layer and the lower floor's prefabricated portion of even roof beam of striding layer, this layer of prefabricated portion reinforcing bar includes this layer of horizontal waist muscle, this layer of horizontal base muscle and this layer of vertical super stirrup that stretches, this layer of horizontal base muscle is the bottom reinforcing bar in this layer of horizontal waist muscle, the top surface that this layer of prefabricated portion concrete was stretched out to this layer of vertical super stirrup that stretches out, it stretches out the height and highly suits with the even roof beam of striding layer, the lower floor's prefabricated portion of even roof beam of striding layer includes the prefabricated portion reinforcing bar of lower floor, lower floor's prefabricated portion reinforcing bar is the top reinforcing bar in the lower floor's horizontal longitudinal bar and is lower floor's horizontal top muscle. The vertical super-stretch stirrup of the layer of the cross-layer connecting beam and the upper rib of the lower-layer connecting beam are arranged in the prefabricated wall plate, so that the prefabricated wall plate has the advantages of simple structural form, convenience and high efficiency in construction, excellent structural integrity and the like, is beneficial to improving the construction efficiency, realizes the standardized production of the connecting beam reinforcing steel bars in the prefabricated shear wall and is convenient for quality control.
Description
Technical Field
The invention belongs to the field of an assembled structure, and particularly relates to a prefabricated wallboard with an assembled cross-layer connecting beam, a connecting structure and a construction method thereof.
Background
When the prefabricated type is applied to a house, a prefabricated concrete shear wall structure system is mainly adopted, the upper layer and the lower layer of the system are connected into a whole through a concrete horizontal post-cast strip or a ring beam, and a sleeve grouting connection technology, a steel bar lap joint connection technology, a straight thread connection technology and other steel bar connection technologies are generally adopted in the connection process; the horizontal overhanging reinforcing bar of wallboard reaches in the post-cast section to pass power through reinforcing bar overlap joint realization, adjacent wallboard passes through the post-cast concrete linkage segment between the layer and connects as an organic whole, and this technical system uses for many years, and is very mature.
For the window opening, a mode of filling walls below the window upper connecting beam or double connecting beams below the window upper window is mainly adopted; the lower structure of the upper window and the upper structure of the lower window in the two modes are not required to be connected, and the site operation is more convenient. However, due to the demand of earthquake-resistant calculation in many engineering projects, a cross-layer beam is often required, that is, the lower structure of the upper layer window and the upper structure of the lower layer window are a whole connecting beam, and at the moment, if a traditional connection mode is adopted, the overlapping length of stirrups of the two connecting beams in a post-pouring section is small, and the integrity of the connecting beams is poor; meanwhile, the horizontal post-cast strip can be cast only after the upper-layer wallboard needs to be installed on site, so that the construction is complicated and the casting quality is poor; therefore, the assembled concrete shear wall does not adopt a cross-layer connecting beam form, the part of the beam and the adjacent shear wall can only adopt cast-in-place when in use, the quantity of on-site formwork support and steel bar binding is large, and the construction is complicated.
Disclosure of Invention
The invention aims to provide a prefabricated wallboard with an assembled cross-layer connecting beam, a connecting structure and a construction method thereof, and aims to solve the technical problems that a cross-layer upper inverted beam on an assembled concrete holing shear wall only can adopt on-site formwork support and steel bar binding by adopting a traditional connecting mode, the engineering quantity is large, and the construction is complicated.
In order to achieve the purpose, the invention adopts the following technical scheme:
a prefabricated wallboard with an assembled cross-layer connecting beam comprises a plate body, wherein the plate body is a door type prefabricated member, an opening with an open lower side is formed in the middle of the plate body, the plate body comprises a wall part of the layer, a prefabricated part of the layer of the cross-layer connecting beam and a prefabricated part of the lower layer of the cross-layer connecting beam, the wall part of the layer is vertical prefabricated components on two sides of the opening, the prefabricated part of the layer is a horizontal prefabricated component on the top of the opening,
the wall part comprises wall part reinforcing steel bars and wall part concrete, the wall part reinforcing steel bars wrap the wall part reinforcing steel bars, the wall part reinforcing steel bars comprise wall part vertical main reinforcing steel bars, wall part horizontal reinforcing steel bars and wall part tie reinforcing steel bars,
the top of the vertical main rib of the wall part extends out of the top surface of the concrete of the wall part, the bottom of the vertical main rib of the wall part extends to the bottom of the wall part, the horizontal rib of the wall part and the vertical main rib of the wall part are connected by the tie bar of the wall part, the horizontal ribs of the wall part are arranged at intervals along the through height of the wall part, the outer half part of the horizontal rib of the wall part extends out of the outer side surface of the concrete of the wall part,
the layer of prefabricated part comprises the layer of prefabricated part reinforcing steel bars and the layer of prefabricated part concrete, the layer of prefabricated part concrete wraps the layer of prefabricated part reinforcing steel bars, the layer of prefabricated part reinforcing steel bars comprises the layer of horizontal waist reinforcing steel bars, the layer of horizontal bottom reinforcing steel bars and the layer of vertical super-stretch stirrups,
the horizontal bottom rib of the layer is the bottommost rib of the horizontal waist rib of the layer, the bottom of the vertical super-stretch stirrup of the layer is pre-buried in the concrete of the prefabricated part and at the lower side of the horizontal bottom rib of the layer, the top of the vertical super-stretch stirrup of the layer extends out of the top surface of the concrete of the prefabricated part, the extending height of the top of the vertical super-stretch stirrup of the layer is adapted to the height of the cross-layer connecting beam,
the prefabricated portion of lower floor of striding layer even roof beam includes prefabricated portion reinforcing bar of lower floor, and prefabricated portion reinforcing bar of lower floor is that the top layer reinforcing bar in the horizontal longitudinal reinforcement of lower floor is lower floor's level top muscle.
This layer of wall portion reinforcing bar still includes wall portion and links roof beam lumbar muscle, wall portion links roof beam lumbar muscle and arranges in this layer of wall portion concrete below lower floor's level top muscle elevation.
The vertical super-stretch stirrup on the layer is a closed rectangular stirrup, a U-shaped stirrup or a hooked opening stirrup.
A connecting structure of prefabricated wall panel with assembled cross-layer connecting beam comprises two plate bodies as claimed in any one of claims fixedly connected from top to bottom, namely an upper plate body and a lower plate body, wherein a reinforcing steel bar setting range of the cross-layer connecting beam is arranged between a lower layer horizontal top rib of the upper plate body and a current layer horizontal bottom rib of the lower plate body, wherein the upper part of the top surface of the lower plate body is in an existing installation range,
the bottom surface of the upper plate body is higher than the top surface of the floor slab, the top of the vertical main rib of the wall part of the lower plate body is connected with the bottom of the vertical main rib of the wall part of the upper plate body,
the connecting structure also comprises a field installation part of the cross-layer connecting beam arranged in a field installation range, the field installation part comprises a cross-layer connecting beam additional stirrup, a cross-layer connecting beam horizontal waist rib, a cross-layer connecting beam horizontal lacing wire and cross-layer connecting beam cast-in-place concrete,
the cross-layer connecting beam additional stirrups and the vertical super-extension stirrups of the layer are arranged in a one-to-one correspondence manner, the bottoms of the cross-layer connecting beam additional stirrups are lapped with the tops of the vertical super-extension stirrups of the layer, the tops of the cross-layer connecting beam additional stirrups are hooped on the upper side of the lower horizontal top reinforcement of the upper plate body,
the horizontal waist rib of the cross-layer connecting beam and the vertical super-stretch stirrup of the layer are integrated through the horizontal lacing wire of the cross-layer connecting beam,
the cross-layer coupling beam cast-in-place concrete comprises precast concrete and post-cast concrete, wherein the precast concrete is arranged between the top surface of the lower plate body and the top surface of the floor slab, and the post-cast concrete is arranged at the position, above the lower-layer horizontal top rib of the upper plate body, of the top surface of the precast concrete and including the thickness of the protective layer of the lower-layer horizontal top rib.
The additional stirrups of the cross-layer connecting beam are closed rectangular stirrups, U-shaped stirrups or hooked opening stirrups.
The inner end part of the wall connecting beam waist bar extends out of the wall concrete of the upper plate body, the outer end part extends out of the wall concrete of the upper plate body or does not extend out of the wall concrete of the upper plate body,
the cross-layer connecting beam horizontal waist bar is provided with at least one channel in the cast-in-place concrete, and the rest of the cross-layer connecting beam horizontal waist bars are arranged in the cast-in-place concrete or the cross-layer connecting beam horizontal waist bars are arranged in the cast-in-place concrete.
The horizontal waist ribs of the cross-layer connecting beam and the waist ribs of the wall connecting beam of the upper plate body are arranged in different or same number and are arranged in one-to-one correspondence,
the end part of the horizontal waist rib of the cross-layer coupling beam is not connected with the wall part of the layer of the upper plate body or is not connected with the waist rib of the coupling beam of the wall part,
or the horizontal waist rib of the cross-layer coupling beam is formed by connecting the inner ends of two steel bars into a whole through overlapping, and the two outer end parts of the two steel bars are respectively connected with the inner end parts of the coupling beam waist ribs of the two side wall parts through a cross-layer coupling beam straight thread sleeve.
A construction method of a connecting structure comprises the following construction steps:
step one, mounting a lower plate body;
pouring the cast-in-place concrete and the concrete of the floor slab to the top surface elevation of the floor slab, and embedding the horizontal waist bars of the cross-layer coupling beam in the range in advance;
step three, mounting an upper plate body, and connecting the vertical main wall part rib of the lower plate body with the vertical main wall part rib of the upper plate body;
step four, mounting a cross-layer connecting beam additional stirrup, and lapping and hooping the cross-layer connecting beam additional stirrup with the vertical super-extending stirrup of the layer of the lower plate body to the upper side of the lower horizontal jacking rib of the upper plate body;
step five, installing other horizontal waist bars of the cross-layer connecting beam, wherein the two end parts of the horizontal waist bars of the cross-layer connecting beam do not extend into the wall part of the upper plate body at two sides, and the horizontal waist bars of the cross-layer connecting beam are tied with the vertical super-stretching stirrup of the lower plate body through the horizontal lacing bar of the cross-layer connecting beam, so that the horizontal waist bars of the cross-layer connecting beam, the horizontal lacing bar of the cross-layer connecting beam, the horizontal top bar of the lower layer of the upper plate body, the vertical super-stretching stirrup of the lower plate body and the additional stirrup of the cross-layer connecting beam form a steel reinforcement framework of the field installation part of the cross-layer connecting beam;
sixthly, installing a template of the field installation part of the cross-layer connecting beam;
and seventhly, pouring concrete after pouring to finish the construction of the field installation part, wherein the field installation part and the local layer prefabricated part of the lower plate body form a complete cross-layer connecting beam together.
The other construction method of the connecting structure comprises the following construction steps:
step one, mounting a lower plate body;
pouring the cast-in-place concrete and the concrete of the floor slab to the elevation of the top surface of the floor slab;
step three, mounting an upper plate body, and connecting the vertical main wall part rib of the lower plate body with the vertical main wall part rib of the upper plate body;
step four, mounting a cross-layer connecting beam additional stirrup, and lapping and hooping the cross-layer connecting beam additional stirrup with the vertical super-extending stirrup of the layer of the lower plate body to the upper side of the lower horizontal jacking rib of the upper plate body;
step five, installing a horizontal waist rib of the cross-layer connecting beam, connecting the horizontal waist rib of the cross-layer connecting beam with a horizontal structural rib of the wall part of the upper plate body through a straight thread sleeve, namely, the horizontal waist rib of the cross-layer connecting beam extends into the wall part of the upper plate body through the horizontal structural rib, and the horizontal waist rib of the cross-layer connecting beam is also pulled and connected with the vertical super-stretching stirrup of the lower plate body through the horizontal lacing wire of the cross-layer connecting beam, so that the horizontal waist rib of the cross-layer connecting beam, the horizontal lacing wire of the cross-layer connecting beam, the lower horizontal top rib of the upper plate body, the vertical super-stretching stirrup of the lower plate body and the additional lacing wire of the cross-layer connecting beam in the step form a steel bar framework of the field installation part of the cross-layer connecting beam together;
sixthly, installing a template of the field installation part of the cross-layer connecting beam;
and seventhly, pouring concrete after pouring to finish the construction of the field installation part, wherein the field installation part and the local layer prefabricated part of the lower plate body form a complete cross-layer connecting beam together.
Compared with the prior art, the invention has the following characteristics and beneficial effects:
the invention solves the problems that the prior art is difficult to realize the construction of the reverse connection beam on the fabricated concrete structure conveniently and efficiently and simultaneously ensures the construction quality and the structural integrity.
The vertical super-stretch stirrup of the layer of the cross-layer connecting beam and the upper rib of the lower-layer connecting beam are arranged in the prefabricated wall plate, so that the prefabricated wall plate has the advantages of simple structural form, convenience and high efficiency in construction, excellent structural integrity and the like, is beneficial to improving the construction efficiency, realizes the standardized production of the connecting beam reinforcing steel bars in the prefabricated shear wall and is convenient for quality control. The cross-layer connecting beam comprises a prefabricated part and an existing installation part, wherein the existing installation part comprises an additional stirrup for installing the cross-layer connecting beam, a horizontal waist rib for the cross-layer connecting beam and a horizontal lacing wire for the cross-layer connecting beam, so that the common stress of a longitudinal rib and a prefabricated stirrup of the prefabricated connecting beam is ensured, the construction quality of the connecting beam is ensured, the stress performance of the connecting beam is optimized, and the integrity of an assembled structure is improved. Meanwhile, the concrete of the existing part is poured twice, the concrete is poured to the top surface of the floor slab for the first time, namely the lower side of the upper plate body, a space is formed between the bottom surface of the upper plate body and the concrete pouring surface for the first time, the space needs to be poured and filled for the second time, the concrete is poured to the top surface of the cross-layer connecting beam for the second time, and the concrete is reliably connected with the concrete poured for the first time.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings.
Fig. 1 is a schematic structural view of a prefabricated wall panel of the present invention.
FIG. 2 is a schematic view of a connection structure according to an embodiment of the present invention.
Fig. 3 is an enlarged view of the connection portion of fig. 2.
Fig. 4 is a schematic longitudinal sectional view of the position of the wall portion of the present floor in fig. 2.
Fig. 5 is a schematic longitudinal section of the cross-layer beam in fig. 2.
Fig. 6 is a schematic longitudinal section of the position of the layer of preforms in fig. 2.
Fig. 7 is a schematic view of a second embodiment of the connection structure of the present invention.
Fig. 8 is an enlarged view of the connection portion of fig. 7.
Fig. 9 is a third schematic view of the embodiment of the connection structure of the present invention.
Fig. 10 is an enlarged view of the connection portion of fig. 9.
Fig. 11 is a schematic perspective view of fig. 1.
FIG. 12 is the perspective view of FIG. 11 with the attachment of a cross-layer tie beam attachment stirrup attached.
Fig. 13 is a schematic perspective view of the cast-in-place concrete of the cross-coupled beam of fig. 2 without pouring.
Reference numerals: 1-opening, 2-wall part of the layer, 21-vertical main reinforcement of the wall part, 22-horizontal reinforcement of the wall part, 23-tie reinforcement of the wall part, 24-concrete of the wall part of the layer, 25-grouting sleeve of the wall part, 26-waist reinforcement of a connecting beam of the wall part, 3-prefabricated part of the layer, 31-horizontal waist reinforcement of the layer, 32-horizontal bottom reinforcement of the layer, 33-vertical super-extension stirrup of the layer, 34-concrete of the prefabricated part of the layer, 4-prefabricated part of the lower layer, 5-anchoring plate, 6-top surface of the floor slab, 7-on-site installation part, 71-additional stirrup of the connecting beam of the spanning layer, 72-horizontal waist reinforcement of the connecting beam of the spanning layer, 73-horizontal stay reinforcement of the connecting beam of the spanning layer, 74-cast-in-place concrete of the connecting beam of the spanning layer, 741-cast-in-advance concrete, 742-post-cast-concrete, 11-upper plate body, 12-lower plate body.
Detailed Description
Referring to fig. 1, 11 and 12, a prefabricated wallboard of even roof beam is striden to area assembled, package rubbing board body, the plate body is the gate-type prefab, open at the middle part of plate body has the open entrance to a cave 1 of downside, and the plate body includes this layer of wall portion 2, strides this layer of prefabricated portion 3 of even roof beam and strides layer of lower floor prefabricated portion 4 of even roof beam, this layer of wall portion 2 is the vertical prefabricated component of entrance to a cave both sides, this layer of prefabricated portion 3 is the horizontal prefabricated component at entrance to a cave top.
This layer of wall portion 2 includes this layer of wall portion reinforcing bar and this layer of wall portion concrete 24, this layer of wall portion concrete 24 parcel is this layer of wall portion reinforcing bar, this layer of wall portion reinforcing bar includes the vertical main muscle 21 of wall portion, wall portion horizontal muscle 22 and wall portion drawknot reinforcing bar 23.
This layer of wall portion concrete 24's top surface is stretched out at the top of the vertical main muscle 21 of wall portion, the bottom of the vertical main muscle 21 of wall portion extends to this layer of wall portion 2's bottom, different ways can be adopted here in the embodiment of difference, for example, the bottom of the vertical main muscle 21 of wall portion can carry out muffjoint with the pre-buried wall portion grout sleeve 25 in this layer of wall portion 2's bottom, make things convenient for follow-up and other vertical main muscle 21 of wall portion to be connected, can also not be at the pre-buried grout sleeve in this layer of wall portion 2's bottom, follow-up and other indirect overlap joint of the vertical main muscle 21 of wall portion or straight threaded connection.
In this embodiment, a bottom embedded wall grouting sleeve 25 is adopted, and the bottom surface of the wall grouting sleeve 25 is flush with the bottom surface of the layer of wall concrete 24.
This layer of prefabricated portion 3 includes this layer of prefabricated portion reinforcing bar and this layer of prefabricated portion concrete 34, this layer of prefabricated portion concrete 34 wraps up this layer of prefabricated portion reinforcing bar, this layer of prefabricated portion reinforcing bar includes this layer of horizontal waist muscle 31, this layer of horizontal end muscle 32 and this layer of vertical super stirrup 33 that stretches.
This layer of prefabricated portion concrete 34's both ends terminal surface is stretched out respectively at this layer of horizontal kidney muscle 31's both ends, muscle 32 is the bottom reinforcing bar in this layer of horizontal kidney muscle 31 at the bottom of this layer of horizontal kidney muscle, this layer of vertical surpasses stirrup 33 and is connected with this layer of horizontal kidney muscle 31 to this layer of vertical surpasses stirrup 33's bottom to bury in this layer of prefabricated portion concrete 34 in advance, the downside of muscle 32 at the bottom of this layer of horizontal, this layer of vertical surpasses stirrup 33's top surface of stretching out this layer of prefabricated portion concrete 34, and it stretches out the height and highly suits with striding layer roof beam.
The prefabricated portion 4 of lower floor of striding layer even roof beam includes the prefabricated portion reinforcing bar of lower floor, and the prefabricated portion reinforcing bar of lower floor is that the top layer reinforcing bar in the lower floor level is indulged the muscle is lower floor's level top muscle.
This layer of wall portion reinforcing bar still includes wall portion and links roof beam lumbar muscle 26, wall portion links roof beam lumbar muscle 26 and arranges in this layer of wall portion concrete 24 below the horizontal top muscle elevation of lower floor. The inner end part of the wall connecting beam waist rib 26 extends out of the wall concrete 24 of the layer, and the outer end part of the wall connecting beam waist rib extends out of the wall concrete 24 of the layer or does not extend out of the wall concrete 24 of the layer.
The end part of the horizontal bottom rib 32 of the layer or the horizontal top rib of the lower layer is fixedly connected with an anchoring plate 5 so as to reduce the anchoring length.
The vertical super-stretch stirrup 33 on the layer is a closed rectangular stirrup, a U-shaped stirrup or a hooked opening stirrup. Wherein the U-shaped stirrup or the hooked opening stirrup is opened upwards.
Referring to fig. 2-6 and 13, the prefabricated wall panel with the assembled cross-layer connecting beam has a connecting structure, which includes two panels, namely, an upper panel 11 and a lower panel 12, fixedly connected to each other, and a reinforcing steel bar setting range for the cross-layer connecting beam is provided between a lower horizontal top rib of the upper panel 11 and a lower horizontal bottom rib 32 of the lower panel 12, wherein the upper portion of the top surface of the lower panel 12 is the existing installation range.
The bottom surface of the upper plate body 11 is higher than the top surface 6 of the floor slab, and in this embodiment, the top of the vertical main wall rib 21 of the lower plate body 12 is anchored upward to the bottom of the grouting sleeve 25 of the upper plate body 11 and is fixedly connected with the grouting sleeve. Different methods can be adopted in different embodiments, for example, the bottom of the vertical main rib 21 of the wall part can be connected with the wall part grouting sleeve 25 embedded in the bottom of the wall part 2 to be in sleeve connection, so that the subsequent connection with the vertical main ribs 21 of other wall parts is facilitated, the grouting sleeve can be not embedded in the bottom of the wall part 2, and the subsequent indirect lap joint or the straight thread connection with the vertical main ribs 21 of other wall parts is realized.
The connection structure further comprises a cross-layer connecting beam field installation part 7 arranged in a field installation range, wherein the field installation part 7 comprises a cross-layer connecting beam additional stirrup 71, a cross-layer connecting beam horizontal waist rib 72, a cross-layer connecting beam horizontal lacing wire 73 and cross-layer connecting beam cast-in-place concrete 74.
Stride layer even beam additional stirrup 71 and this layer of vertical super stirrup 33 one-to-one setting to stride the bottom of layer even beam additional stirrup 71 and this layer of vertical top overlap joint of super stirrup 33, stride the upside that the top of layer even beam additional stirrup 71 spigots the lower floor's of last plate body 11 level top muscle. The additional stirrup 71 of the cross-layer coupling beam is a closed rectangular stirrup, a U-shaped stirrup or a hooked open stirrup, wherein the opening of the U-shaped stirrup or the hooked open stirrup faces downwards.
The horizontal waist rib 72 of the cross-layer coupling beam is arranged more than one along the height direction interval in the existing installation range, and the horizontal waist rib 72 of the cross-layer coupling beam and the vertical super-stretch stirrup 33 of the layer are integrated through the horizontal lacing wire 73 of the cross-layer coupling beam.
The inner end part of the wall connecting beam wale 26 extends out of the wall concrete 24 of the layer of the upper plate body 11, and the outer end part of the wall connecting beam wale extends out of the wall concrete 24 of the layer or does not extend out of the wall concrete 24 of the layer.
The number of the horizontal wale 72 of the cross-layer connecting beam is different from that of the wale 26 of the wall portion connecting beam of the upper plate body 11, the end portion of the horizontal wale 72 of the cross-layer connecting beam is not connected with the wall portion 2 of the upper plate body 11 or is not connected with the wale 26 of the wall portion connecting beam,
at least one horizontal waist rib 72 of the cross-layer coupling beam is arranged in the precast concrete 741, and the rest is arranged in the post-cast concrete 742. In this embodiment, the horizontal wale 72 of the cross-layer coupling beam is provided with one in the precast concrete 741, and the other two are provided in the post-cast concrete 742. The horizontal wales 72 of the cross-layer coupling beam are all whole steel bars.
The cross-layer coupling beam cast-in-place concrete 74 comprises precast concrete 741 and post-cast concrete 742, the precast concrete 741 is poured between the top surface of the lower plate body 12 and the top surface 6 of the floor slab, and the post-cast concrete 742 is poured at a position where the top surface of the precast concrete is higher than the lower-layer horizontal top rib of the upper plate body 11 and includes the thickness of the protective layer of the lower-layer horizontal top rib.
The construction method of the connection structure comprises the following construction steps:
step one, the lower plate body 12 is installed.
And step two, pouring precast concrete 741 and the concrete of the floor slab to the height level of the top surface 6 of the floor slab, and embedding the cross-layer coupling beam horizontal waist rib 72 in the range in advance. In this embodiment, the floor slab is a composite floor slab, so the prefabricated part of the composite floor slab should be constructed before the step and after the lower slab 12 is installed, and the concrete of the floor slab poured in the step is the cast-in-place part concrete of the composite floor slab.
And step three, mounting the upper plate body 11, and connecting the vertical main wall portion rib 21 of the lower plate body 12 with the vertical main wall portion rib 21 of the upper plate body 11.
And step four, mounting a cross-layer connecting beam additional stirrup 71, and lapping and hooping the cross-layer connecting beam additional stirrup 71 with the vertical super-extending stirrup 33 of the current layer of the lower plate body 12 to the upper side of the lower-layer horizontal jacking rib of the upper plate body 11.
And step five, installing the rest cross-layer connecting beam horizontal waist ribs 72, wherein the two end parts of the cross-layer connecting beam horizontal waist ribs 72 do not extend into the local wall part 2 of the upper plate body 11 on the two sides, and the cross-layer connecting beam horizontal waist ribs 72 are tied with the local vertical super-extension stirrups 33 of the lower plate body 12 through cross-layer connecting beam horizontal lacing bars 73, so that the cross-layer connecting beam horizontal waist ribs 72, the cross-layer connecting beam horizontal lacing bars 73, the lower layer horizontal top ribs of the upper plate body 11, the local vertical super-extension stirrups 33 of the lower plate body 12 and the cross-layer connecting beam additional stirrups 71 jointly form a steel bar framework of the cross-layer connecting beam field installation part 7, and the integrity of the steel bar framework is improved.
And step six, installing the template of the field installation part 7 of the cross-layer connecting beam.
And step seven, pouring post-cast concrete 742 to complete construction of the field installation part 7, wherein the field installation part 7 and the layer of prefabricated part 3 of the lower plate body 12 form a complete cross-layer connecting beam together.
Second embodiment referring to fig. 7 to 8, unlike the first embodiment, the horizontal wales 72 of the cross-layer coupling beams are all disposed in the post-cast concrete 742, the horizontal wales 72 of the cross-layer coupling beams are disposed in the same number and one-to-one correspondence with the wall portion coupling beam wales 26 of the upper plate body 11, and the wall portion coupling beam wales 26 are disposed at intervals in the height direction.
Each horizontal waist rib 72 of the cross-layer coupling beam is formed by connecting the inner ends of two steel bars into a whole through lap joint, and the two outer end parts of the two steel bars are respectively connected with the inner end parts of the coupling beam waist ribs 26 of the two side wall parts through cross-layer coupling beam straight thread sleeves. In this embodiment, the wall portion coupling beam wale 26 is provided with four paths, and the cross-layer coupling beam horizontal wale 72 is also provided with four paths in the post-cast concrete 742.
The construction method of the connection structure comprises the following construction steps:
step one, the lower plate body 12 is installed.
And step two, pouring precast concrete 741 and the concrete of the floor slab to the height level of the top surface 6 of the floor slab, and embedding the cross-layer coupling beam horizontal waist rib 72 in the range in advance. In this embodiment, the floor slab is a composite floor slab, so the prefabricated part of the composite floor slab should be constructed before the step and after the lower slab 12 is installed, and the concrete of the floor slab poured in the step is the cast-in-place part concrete of the composite floor slab.
And step three, mounting the upper plate body 11, and connecting the vertical main wall portion rib 21 of the lower plate body 12 with the vertical main wall portion rib 21 of the upper plate body 11.
And step four, mounting a cross-layer connecting beam additional stirrup 71, and lapping and hooping the cross-layer connecting beam additional stirrup 71 with the vertical super-extending stirrup 33 of the current layer of the lower plate body 12 to the upper side of the lower-layer horizontal jacking rib of the upper plate body 11.
Step five, installing the horizontal waist rib 72 of the cross-layer connecting beam, connecting the horizontal waist rib 72 of the cross-layer connecting beam with the horizontal structural rib of the wall part 2 of the upper plate body 11 through a straight thread sleeve, namely, the horizontal waist rib 72 of the cross-layer connecting beam extends into the wall part 2 of the upper plate body 11 through the horizontal structural rib, and the horizontal waist rib 72 of the cross-layer connecting beam is also tied with the vertical super-stretching stirrup 33 of the lower plate body 12 through the horizontal tie rib 73 of the cross-layer connecting beam, so that the horizontal waist rib 72 of the cross-layer connecting beam, the horizontal tie rib 73 of the cross-layer connecting beam, the horizontal top rib of the lower layer of the upper plate body 11, the vertical super-stretching stirrup 33 of the layer of the lower plate body 12 and the additional tie rib 71 of the cross-layer connecting beam in the step form a steel bar framework of the field installation part 7 of the cross-layer connecting beam together, and the integrity of the steel bar framework is improved.
And step six, installing the template of the field installation part 7 of the cross-layer connecting beam.
And step seven, pouring post-cast concrete 742 to complete construction of the field installation part 7, wherein the field installation part 7 and the layer of prefabricated part 3 of the lower plate body 12 form a complete cross-layer connecting beam together.
Third embodiment referring to fig. 9 to 10, different from the first or second embodiment, the number of the cross-layer coupling beam horizontal wales 72 is different from that of the wall portion coupling beam wales 26 of the upper plate body 11, two end portions of the cross-layer coupling beam horizontal wale 72 are respectively connected or overlapped with inner end portions of the wall portion coupling beam wales 26 at two sides through cross-layer coupling beam straight thread sleeves, the wall portion coupling beam wales 26 are arranged at intervals in the height direction, and the cross-layer coupling beam horizontal wales 72 are all arranged in post-cast concrete 742. In this embodiment, the wall portion coupling beam wale 26 is provided with four paths, the cross-layer coupling beam horizontal wale 72 is provided with two paths, wherein the upper path is in lap joint with the wall portion coupling beam wale 26, and the cross-layer coupling beam horizontal wale 72 is a whole steel bar. The lower course is connected with the wall connecting beam waist rib 26 through a straight thread sleeve, and the cross-layer connecting beam horizontal waist rib 72 is formed by overlapping and lengthening two reinforcing steel bars. The construction method of the embodiment refers to the second embodiment.
Claims (9)
1. The utility model provides a prefabricated wallboard of even roof beam is striden to area assembled, its characterized in that: comprises a plate body, wherein the plate body is a door type prefabricated member, the middle part of the plate body is provided with an opening (1) with an open lower side, the plate body comprises a wall part (2) of the layer, a prefabricated part (3) of the layer of a cross-layer connecting beam and a prefabricated part (4) of the lower layer of the cross-layer connecting beam, the wall part (2) of the layer is a vertical prefabricated component on two sides of the opening, the prefabricated part (3) of the layer is a horizontal prefabricated component on the top of the opening,
the wall part (2) comprises wall part reinforcing steel bars and wall part concrete (24), the wall part reinforcing steel bars are wrapped by the wall part concrete (24), the wall part reinforcing steel bars comprise wall part vertical main reinforcing steel bars (21), wall part horizontal reinforcing steel bars (22) and wall part tie reinforcing steel bars (23),
the top of the vertical main rib (21) of the wall part extends out of the top surface of the concrete (24) of the wall part, the bottom of the vertical main rib (21) of the wall part extends to the bottom of the wall part (2), the horizontal rib (22) of the wall part and the vertical main rib (21) of the wall part are connected through the tie bar (23) of the wall part, the horizontal rib (22) of the wall part is arranged along the through height interval of the wall part (2), the outer half part of the horizontal rib (22) of the wall part extends out of the outer side surface of the concrete (24) of the wall part,
the layer of prefabricated part (3) comprises the layer of prefabricated part reinforcing steel bars and the layer of prefabricated part concrete (34), the layer of prefabricated part concrete (34) wraps the layer of prefabricated part reinforcing steel bars, the layer of prefabricated part reinforcing steel bars comprises the layer of horizontal waist reinforcing steel bars (31), the layer of horizontal bottom reinforcing steel bars (32) and the layer of vertical super-stretching stirrup (33),
the horizontal bottom rib (32) of the layer is the bottom reinforcing steel bar in the horizontal waist rib (31) of the layer, the bottom of the vertical super-stretch stirrup (33) of the layer is pre-buried in the precast part concrete (34) of the layer and at the lower side of the horizontal bottom rib (32) of the layer, the top of the vertical super-stretch stirrup (33) of the layer extends out of the top surface of the precast part concrete (34) of the layer, the extending height of the vertical super-stretch stirrup (33) of the layer is adapted to the height of the cross-layer connecting beam,
the lower-layer prefabricated part (4) of the cross-layer connecting beam comprises lower-layer prefabricated part reinforcing steel bars, and the lower-layer prefabricated part reinforcing steel bars are topmost reinforcing steel bars in the lower-layer horizontal longitudinal reinforcing steel bars, namely lower-layer horizontal top reinforcing steel bars.
2. The prefabricated wall panel with assembled cross-layer connecting beam of claim 1, wherein: this layer of wall portion reinforcing bar still includes wall portion and links roof beam lumbar muscle (26), wall portion links roof beam lumbar muscle (26) and arranges in this layer of wall portion concrete (24) below lower floor level top muscle elevation.
3. The prefabricated wall panel with assembled cross-layer connecting beam of claim 1, wherein: the vertical super-stretch stirrup (33) on the layer is a closed rectangular stirrup, a U-shaped stirrup or a hooked opening stirrup.
4. The utility model provides a take joint construction of prefabricated wallboard of assembled span layer even roof beam which characterized in that: comprises two plate bodies according to any one of claims 2 to 3 which are fixedly connected up and down and are respectively an upper plate body (11) and a lower plate body (12), wherein a steel bar setting range of a cross-layer connecting beam is arranged between a lower layer horizontal top bar of the upper plate body (11) and a current layer horizontal bottom bar (32) of the lower plate body (12), the upper part of the top surface of the lower plate body (12) is a current assembly range,
the bottom surface of the upper plate body (11) is higher than the top surface (6) of the floor slab, the top of the vertical main rib (21) of the wall part of the lower plate body (12) is connected with the bottom of the vertical main rib (21) of the wall part of the upper plate body (11),
the connecting structure also comprises a field installation part (7) of the cross-layer connecting beam arranged in the field installation range, the field installation part (7) comprises a cross-layer connecting beam additional stirrup (71), a cross-layer connecting beam horizontal waist rib (72), a cross-layer connecting beam horizontal lacing wire (73) and cross-layer connecting beam cast-in-place concrete (74),
the cross-layer connecting beam additional stirrups (71) and the local layer of vertical super-extension stirrups (33) are arranged in a one-to-one correspondence manner, the bottoms of the cross-layer connecting beam additional stirrups (71) are in lap joint with the tops of the local layer of vertical super-extension stirrups (33), the tops of the cross-layer connecting beam additional stirrups (71) are hooped and connected on the upper sides of the lower layer of horizontal top reinforcements of the upper plate body (11),
the horizontal waist rib (72) of the cross-layer coupling beam and the vertical super-extension stirrup (33) of the layer are integrated into a whole through a horizontal lacing wire (73) of the cross-layer coupling beam,
the cross-layer connecting beam cast-in-place concrete (74) comprises precast concrete (741) and post-cast concrete (742), the precast concrete (741) is arranged between the top surface of the lower plate body (12) and the top surface (6) of the floor slab, and the post-cast concrete (742) is arranged at a position, which is higher than a lower-layer horizontal top rib of the upper plate body (11) and comprises a protective layer thickness of the lower-layer horizontal top rib, of the top surface of the precast concrete.
5. The connection configuration according to claim 4, characterized in that: the additional stirrup (71) of the cross-layer connecting beam is a closed rectangular stirrup, a U-shaped stirrup or a hooked opening stirrup.
6. The connection configuration according to claim 4, characterized in that: the inner end part of the wall connecting beam waist rib (26) extends out of the wall concrete (24) of the upper plate body (11), the outer end part extends out of the wall concrete (24) of the layer or does not extend out of the wall concrete (24) of the layer,
the cross-layer coupling beam horizontal waist rib (72) is provided with at least one channel in the precast concrete (741), and the rest channels are arranged in the post-cast concrete (742) or the cross-layer coupling beam horizontal waist rib (72) is arranged in the post-cast concrete (742).
7. The connection configuration according to claim 6, wherein:
the horizontal waist ribs (72) of the cross-layer connecting beam and the waist ribs (26) of the wall connecting beam of the upper plate body (11) are arranged in different or same number and are arranged in one-to-one correspondence,
the end part of the horizontal waist rib (72) of the cross-layer coupling beam is not connected with the wall part (2) of the upper plate body (11) of the layer or is not connected with the waist rib (26) of the coupling beam of the wall part,
or the horizontal waist rib (72) of the cross-layer coupling beam is formed by connecting the inner ends of two steel bars into a whole through overlapping, and the two outer ends of the two steel bars are respectively connected with the inner ends of the coupling beam waist ribs (26) of the two side walls through a cross-layer coupling beam straight thread sleeve.
8. A construction method of the connection structure according to claim 6, characterized by comprising the steps of:
step one, mounting a lower plate body (12);
pouring precast concrete (741) and the concrete of the floor slab to the elevation of the top surface (6) of the floor slab, and embedding the horizontal waist bar (72) of the cross-layer coupling beam in the range in advance;
step three, mounting the upper plate body (11), and connecting the vertical main rib (21) of the wall part of the lower plate body (12) with the vertical main rib (21) of the wall part of the upper plate body (11);
step four, mounting a cross-layer connecting beam additional stirrup (71), and lapping and hooping the cross-layer connecting beam additional stirrup with the vertical super-extension stirrup (33) of the current layer of the lower plate body (12) on the upper side of the lower-layer horizontal jacking rib of the upper plate body (11);
installing other cross-layer connecting beam horizontal waist ribs (72), wherein two end parts of the cross-layer connecting beam horizontal waist ribs (72) do not extend into the wall part (2) of the layer of the upper plate body (11) on two sides, and the cross-layer connecting beam horizontal waist ribs (72) are tied with the vertical hyperextension stirrups (33) of the layer of the lower plate body (12) through cross-layer connecting beam horizontal tie bars (73), so that the cross-layer connecting beam horizontal waist ribs (72), the cross-layer connecting beam horizontal tie bars (73), the lower-layer horizontal top ribs of the upper plate body (11), the vertical hyperextension stirrups (33) of the layer of the lower plate body (12) and the cross-layer connecting beam additional stirrups (71) form a steel bar framework of the cross-layer connecting beam field installation part (7) together;
sixthly, installing a template of the field installation part (7) of the cross-layer connecting beam;
and seventhly, pouring post-cast concrete (742) to complete construction of the field installation part (7), wherein the field installation part (7) and the main layer prefabricated part (3) of the lower plate body (12) form a complete cross-layer connecting beam together.
9. A construction method of the connection structure according to claim 7, characterized by comprising the steps of:
step one, mounting a lower plate body (12);
pouring precast concrete (741) and the concrete of the floor slab to the elevation of the top surface (6) of the floor slab;
step three, mounting the upper plate body (11), and connecting the vertical main rib (21) of the wall part of the lower plate body (12) with the vertical main rib (21) of the wall part of the upper plate body (11);
step four, mounting a cross-layer connecting beam additional stirrup (71), and lapping and hooping the cross-layer connecting beam additional stirrup with the vertical super-extension stirrup (33) of the current layer of the lower plate body (12) on the upper side of the lower-layer horizontal jacking rib of the upper plate body (11);
step five, installing a cross-layer connecting beam horizontal waist rib (72), connecting the cross-layer connecting beam horizontal waist rib (72) with a horizontal structural rib of the wall part (2) of the upper plate body (11) through a straight thread sleeve, namely, extending the cross-layer connecting beam horizontal waist rib (72) into the wall part (2) of the upper plate body (11) through the horizontal structural rib, and pulling the cross-layer connecting beam horizontal waist rib (72) with the vertical super-stretching stirrup (33) of the lower plate body (12) through a cross-layer connecting beam horizontal pulling rib (73), so that the cross-layer connecting beam horizontal waist rib (72), the cross-layer connecting beam horizontal pulling rib (73), the lower layer horizontal top rib of the upper plate body (11), the vertical super-stretching stirrup (33) of the lower plate body (12) and the cross-layer connecting beam additional stirrup (71) in the step jointly form a framework of the cross-layer connecting beam on-site installation part (7);
sixthly, installing a template of the field installation part (7) of the cross-layer connecting beam;
and seventhly, pouring post-cast concrete (742) to complete construction of the field installation part (7), wherein the field installation part (7) and the main layer prefabricated part (3) of the lower plate body (12) form a complete cross-layer connecting beam together.
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| CN202210666614.8A CN114892882A (en) | 2022-06-14 | 2022-06-14 | Prefabricated wallboard with assembled cross-layer connecting beam, connecting structure and construction method of prefabricated wallboard |
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| CN202210666614.8A CN114892882A (en) | 2022-06-14 | 2022-06-14 | Prefabricated wallboard with assembled cross-layer connecting beam, connecting structure and construction method of prefabricated wallboard |
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