CN113136942A - Grouting-free assembled wall and construction method thereof - Google Patents
Grouting-free assembled wall and construction method thereof Download PDFInfo
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- CN113136942A CN113136942A CN202110339444.8A CN202110339444A CN113136942A CN 113136942 A CN113136942 A CN 113136942A CN 202110339444 A CN202110339444 A CN 202110339444A CN 113136942 A CN113136942 A CN 113136942A
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- cavity
- finished product
- wallboard
- reinforcement cage
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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
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/16—Structures made from masses, e.g. of concrete, cast or similarly formed in situ with or without making use of additional elements, such as permanent forms, substructures to be coated with load-bearing material
- E04B1/161—Structures made from masses, e.g. of concrete, cast or similarly formed in situ with or without making use of additional elements, such as permanent forms, substructures to be coated with load-bearing material with vertical and horizontal slabs, both being partially cast in situ
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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
- E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
- E04B2/84—Walls made by casting, pouring, or tamping in situ
- E04B2/86—Walls made by casting, pouring, or tamping in situ made in permanent forms
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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
- E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
- E04B2/84—Walls made by casting, pouring, or tamping in situ
- E04B2/86—Walls made by casting, pouring, or tamping in situ made in permanent forms
- E04B2/8605—Walls made by casting, pouring, or tamping in situ made in permanent forms without spacers
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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
- E04B5/32—Floor structures wholly cast in situ with or without form units or reinforcements
- E04B5/36—Floor structures wholly cast in situ with or without form units or reinforcements with form units as part of the floor
- E04B5/38—Floor 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
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Conveying And Assembling Of Building Elements In Situ (AREA)
Abstract
The invention discloses a grouting-free assembled wall and a construction method thereof, wherein the wall comprises the following components: the cavity wallboard is internally provided with a cavity, and the cavity penetrates through the top and the bottom of the cavity wallboard; the vertical finished product shaping reinforcement cage is inserted into the top or bottom cavity area of the cavity wallboard; the horizontal finished product shaping reinforcement cage is used for connecting the cast-in-place layer reinforcement of the laminated slab, and the horizontal finished product shaping reinforcement cage and the vertical finished product shaping reinforcement cage are bound together in a crossed manner. According to the grouting-free assembled cavity wall construction technology, firstly, concrete is integrally poured in the cavity, so that the grouting problem of casing simplification is avoided; in addition, due to the adoption of a cavity system, the self weight of the component is light, the configuration of the model of the tower crane is reduced, and the cost is saved: and the concrete is integrally poured in the cavity, so that the structural integrity is good, the waterproof performance is good, and the fault-tolerant capability of the wall body bottom connection is strong.
Description
Technical Field
The invention relates to the technical field of building construction, in particular to a grouting-free assembled wall and a construction method thereof.
Background
In recent years, with the development of assembly type buildings, more and more buildings adopt assembly type structures, and various novel assembly type structure systems are continuously emerged. The traditional assembly type structure system has the defects of high requirement on installation precision, heavy self-weight of components, poor waterproof performance, great influence of winter construction and the like.
Disclosure of Invention
Compared with the traditional assembled wall, the grouting-free assembled wall is simple and convenient to construct, the positioning rib construction precision requirement is low, the problem that high-strength grouting cannot be used in winter construction, the construction period is wasted can be solved, and the construction cost is saved.
In order to realize the technical effects, the invention adopts the technical scheme that:
a grout-free assembled wall, comprising:
the cavity wallboard is internally provided with a cavity, and the cavity penetrates through the top and the bottom of the cavity wallboard;
the vertical finished product shaping reinforcement cage is inserted into the top or bottom cavity area of the cavity wallboard;
the horizontal finished product shaping reinforcement cage is used for connecting the cast-in-place layer reinforcement of the laminated slab, and the horizontal finished product shaping reinforcement cage and the vertical finished product shaping reinforcement cage are bound together in a crossed manner.
As a preferable technical scheme of the wall body, independent supporting frames for supporting the prefabricated plates of the laminated slab are arranged on two sides of the cavity wall plate.
As a preferable technical scheme of the wall body, gaskets for adjusting elevation are respectively placed at four corners of the lower portion of the cavity wall board.
As a preferred technical scheme of the wall body, the wall body comprises the following components: the cavity wallboard comprises a reinforced concrete shell and concrete poured in the cavity, and the concrete in the cavity and the concrete on the laminated slab cast-in-place layer are integrally poured and formed.
As a preferred technical scheme of the wall body, the outer side of the cavity wall plate is provided with a heat-insulating layer to form a sandwich heat-insulating laminated wall plate.
The construction method of the grouting-free assembled wall comprises the following steps:
hoisting the cavity wall plate;
installing a vertical finished product shaping reinforcement cage in a top cavity area of the cavity wall board which is hoisted in place, and binding a horizontal finished product shaping reinforcement cage on the vertical finished product shaping reinforcement cage;
arranging lower independent support frames of the laminated slabs on two sides of the cavity wallboard, hoisting the prefabricated slabs of the laminated slabs on the independent support frames, disconnecting the prefabricated slabs at the cavity wallboard, and plugging a gap between the prefabricated slabs on the same side and the cavity wallboard;
binding cast-in-place layer steel bars on the precast slabs, and positioning and binding the cast-in-place layer steel bars and the horizontal finished product shaped steel bar cage;
and synchronously pouring the laminated plate concrete and the concrete in the cavity of the cavity wallboard.
As a preferred technical scheme of the construction method of the present invention, the vertical finished-product-shaped reinforcement cage and the horizontal finished-product-shaped reinforcement cage are crossed, and before the concrete is poured, the method further comprises the steps of: and positioning and hoisting the upper layer of cavity wallboard on the bundled cast-in-place layer of laminated slab and the horizontal finished product forming reinforcement cage, so that the cavity area of the bottom plate of the upper layer of cavity wallboard is sleeved on the vertical finished product forming reinforcement cage.
As a preferable technical scheme of the construction method, when the superimposed sheet concrete and the cavity concrete of the cavity wall plate at the lower layer are poured, the cavity concrete of the cavity wall plate at the upper layer is synchronously poured.
As a preferable technical scheme of the construction method, before the independent support frame is arranged, the construction method further comprises the following steps:
and templates of the outer side heat-insulating layer are arranged on two sides of the cavity wallboard and fixed by split bolts, and the joints between the templates and the cavity wallboard are sealed by sponge strips.
As a preferable technical scheme of the construction method, the distance between the independent support frames and the cavity wallboard is not more than 0.5 m, and the maximum support distance between the independent supports in the independent support frames is not more than 2 m.
Due to the adoption of the technical scheme, the method has the following beneficial effects:
the concrete in the cavity is integrally poured, so that the structural integrity is good, the waterproof performance is good, and the construction method has high fault-tolerant rate compared with the traditional steel bar positioning of a grouting sleeve because the concrete in the cavity is adopted for connection; in addition, the construction method can also increase an outer side heat-insulating layer to form a sandwich heat-insulating laminated wall body. Compared with the traditional assembled structure system, the construction method avoids the traditional grouting sleeve connection mode and reduces the influence of winter construction on the construction period of the assembled structure. Adopt cavity structure, the component dead weight is compared and is reduced more in traditional component, can reduce the tower crane model, has reduced the hoist and mount of overweight component, is favorable to site operation safety, has saved tower crane lease cost simultaneously.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic view illustrating an exemplary structure of a groutless assembly type wall body according to the present invention.
Fig. 2 is an exemplary construction flow chart of the grouting-free fabricated wall construction method of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, the invention mainly adopts a cavity for wall connection, connecting steel bars adopt finished product shaped steel bar cages, and concrete in the cavity is integrally poured; in addition, an outer side heat-insulating layer can be added to form the sandwich heat-insulating laminated wall body.
The concrete structure of this exempt from assembled wall of grouting mainly includes: cavity wallboard 11, vertical finished product design steel reinforcement cage 12 and horizontal finished product design steel reinforcement cage 13.
The cavity wall plate 11, the inside of the cavity wall plate 11 forms a cavity 10, and the cavity 10 penetrates the top and the bottom of the cavity wall plate 11. The cavity wall plate 11 is a reinforced concrete shell with a rectangular cross section, and the shape and the size of the cavity wall plate are matched with the cross section of the wall body.
The vertical finished product shaping reinforcement cage 12 is inserted into the top or bottom cavity area of the cavity wallboard;
and the horizontal finished product sizing reinforcement cage 13 is used for connecting the cast-in-place layer reinforcements 14 of the laminated slab, the horizontal finished product sizing reinforcement cage 13 is bound on the vertical finished product sizing reinforcement cage 12, and further, the horizontal finished product sizing reinforcement cage 13 and the vertical finished product sizing reinforcement cage 12 are bound together in a crossed manner. Utilize horizontal finished product design steel reinforcement cage 13 and cast-in-place layer reinforcing bar 14 of superimposed sheet to carry out the ligature, and cast-in-place layer reinforcing bar 14 of superimposed sheet is fixed a position by the superimposed sheet construction, consequently, can fix a position vertical finished product design steel reinforcement cage 12's high position, satisfy the anchor length requirement of vertical finished product design steel reinforcement cage 12 lower part and lower floor's cavity wallboard and the anchor length of vertical finished product design steel reinforcement cage 12 upper portion and upper strata cavity wallboard.
Preferably, a spacer (not shown) for adjusting the height is disposed at each of the four corners of the lower portion of the cavity wall plate 11.
With reference to fig. 1 and 2, the concrete embodiment of constructing the groutless assembly wall body is as follows:
(1) and (3) measurement and paying-off: the connection plane of installation cavity wallboard should the sanitization, strictly according to drawing and measurement control net, on operation layer concrete roof, the bullet establishes the control line so that the installation wall body is taken one's place, include: wall and opening sidelines; a horizontal position control line of a wall body is 50 cm; a 50cm elevation control line (on a steel bar of a cast-in-situ section of a concrete floor slab) of an operation layer;
(2) performing bottom roughening and reinforcing steel bar correction on the position of the cavity wall plate to be installed;
(3) leveling by using gaskets: and adjusting the height of the gasket according to an elevation control line which is elastically arranged on the vertical dowel bar in advance. The lower part of each cavity wallboard is respectively provided with a gasket at the position of four corners for adjusting elevation. And after the elevation is adjusted in place, rechecking the elevation to ensure that the position and the height of the device are accurate. The height of the gasket is 20mm, and the gasket is adjusted according to the actual elevation after the floor slab is poured;
(4) hoisting the wall body: the cavity wall plate 11 is installed in place, an inclined support is installed, and the perpendicularity of the wall body is adjusted and measured and corrected;
(5) installing a sizing reinforcement cage: a shaped reinforcement cage is used between the cavity wall plate and the laminated slab cast-in-place layer, horizontal connecting reinforcements are placed in the cavity of the cavity wall plate in advance, after the vertical finished product shaped reinforcement cage 12 is hoisted, the horizontal connecting reinforcements are moved into the cast-in-place layer to be bound, a horizontal finished product shaped reinforcement cage 13 is formed, the horizontal finished product shaped reinforcement cage 13 is crossed with the vertical finished product shaped reinforcement cage 12, the horizontal finished product shaped reinforcement cage 13 is used for connecting cast-in-place layer reinforcements 14 of the laminated slab, the construction of the laminated slab can be utilized for positioning the reinforcements, and the requirement of the anchoring length of the vertical finished product shaped reinforcement cage 12 and the upper and lower cavity wall plates 11 is met;
(6) and (3) template construction: the both sides of cavity wallboard 11 adopt 15mm thick template as the panel (not shown in the figure), and the heat preservation of construction both sides, the secondary joist adopts 50mm 100mm flitch, and the main joist is the design channel-section steel, adopts to consolidate to the stay bolt. In order to prevent slurry leakage, the joints of the template and the cavity wall plate are sealed by sponge strips.
(7) Mounting the independent support frame 16 below the laminated slab: the bottom supports of the laminated slab prefabricated slabs 15 are independent supports, so that the number of independent supports of each prefabricated slab is not less than 4, the supporting distance from the wall slab is not more than 0.5 m, and the maximum supporting distance is not more than 2 m. The maximum using length of the independent support is 2.9m, and the specification is 48mm multiplied by 3.5mm of the steel pipe. The steel upright posts are arranged by 1500mm multiplied by 1500 mm.
(8) Hoisting construction of the laminated slab precast slabs, namely hoisting the precast slabs 15 in place on the arranged independent supports, adjusting the elevation, disconnecting the precast slabs 15 from the cavity wall slab 11, and plugging a gap between the precast slabs 15 on the same side and the cavity wall slab 11;
(9) and (5) binding the cast-in-place layer steel bars, namely positioning and binding the cast-in-place layer steel bars 14 on the prefabricated plates 15, and positioning the steel bars by adopting the existing laminated plate process, such as using a split heads. And binding the horizontal finished product shaped reinforcement cage 13 with the cast-in-place layer reinforcement 14, positioning the vertical finished product shaped reinforcement cage 12, and meeting the requirement of anchoring length with the upper and lower layer cavity wall boards.
(10) Construction of the upper layer of wall: hoisting and sleeving the bottom cavity area of the upper layer of cavity wall plate on a vertical finished product shaped steel reinforcement cage at the top of the lower layer of cavity wall body, mounting an inclined support, and performing wall body verticality adjustment and measurement correction;
(11) and (5) performing concrete pouring construction, namely synchronously pouring concrete in the cavity of the upper layer of cavity wall plate, concrete in the cast-in-place layer of the laminated slab and concrete in the cavity of the lower layer of cavity wall plate.
The invention has the advantages that: the concrete in the cavity is integrally poured, so that the structural integrity is good, the waterproof performance is good, and the construction method has high fault-tolerant rate compared with the traditional steel bar positioning of a grouting sleeve because the concrete in the cavity is adopted for connection; in addition, the construction method can also increase an outer side heat-insulating layer to form a sandwich heat-insulating laminated wall body. Compared with a traditional assembly type structure system, the construction method avoids the influence of the traditional grouting sleeve connection mode on the construction period of the assembly type structure, which is caused by winter construction. Adopt cavity structure, the component dead weight is compared and is reduced more in traditional component, can reduce the tower crane model, has reduced the hoist and mount of overweight component, is favorable to site operation safety, has saved tower crane lease cost simultaneously.
It should be noted that, in this document, terms such as "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. The utility model provides a exempt from assembled wall of grout which characterized in that includes:
the cavity wallboard is internally provided with a cavity, and the cavity penetrates through the top and the bottom of the cavity wallboard;
the vertical finished product shaping reinforcement cage is inserted into the top or bottom cavity area of the cavity wallboard;
the horizontal finished product shaping reinforcement cage is used for connecting the cast-in-place layer reinforcement of the laminated slab, and the horizontal finished product shaping reinforcement cage and the vertical finished product shaping reinforcement cage are bound together in a crossed manner.
2. The grout-free assembled wall of claim 1, wherein: and independent support frames for supporting the laminated slab are arranged on two sides of the cavity wall plate.
3. The grout-free assembled wall of claim 1, wherein: and gaskets for adjusting elevation are respectively placed at the four corners of the lower part of the cavity wallboard.
4. The grout-free assembled wall of claim 1, wherein: the cavity wallboard comprises a reinforced concrete shell and concrete poured in the cavity, and the concrete in the cavity and the concrete on the laminated slab cast-in-place layer are integrally poured and formed.
5. The groutless assembly type wall of claim 1 wherein the cavity wall panel is provided with insulation on the outside to form a sandwich insulation laminated wall panel.
6. A construction method of a grouting-free assembled wall body as claimed in any one of claims 1 to 5, characterized by comprising the following steps:
hoisting the cavity wall plate;
installing a vertical finished product shaping reinforcement cage in a top cavity area of the cavity wall board which is hoisted in place, and binding a horizontal finished product shaping reinforcement cage on the vertical finished product shaping reinforcement cage;
arranging lower independent support frames of the laminated slabs on two sides of the cavity wallboard, hoisting the prefabricated slabs of the laminated slabs on the independent support frames, disconnecting the prefabricated slabs at the cavity wallboard, and plugging a gap between the prefabricated slabs on the same side and the cavity wallboard;
binding cast-in-place layer steel bars on the precast slabs, and positioning and binding the cast-in-place layer steel bars and the horizontal finished product shaped steel bar cage;
and synchronously pouring the laminated plate concrete and the concrete in the cavity of the cavity wallboard.
7. The construction method according to claim 6, wherein the vertical finished form rebar cage and the horizontal finished form rebar cage cross intersect, further comprising, prior to casting the concrete, the steps of: and positioning and hoisting the upper layer of cavity wallboard on the bundled cast-in-place layer of laminated slab and the horizontal finished product forming reinforcement cage, so that the cavity area of the bottom plate of the upper layer of cavity wallboard is sleeved on the vertical finished product forming reinforcement cage.
8. The construction method according to claim 7, wherein the cavity concrete of the cavity wall panel of the upper layer is poured simultaneously with the pouring of the cavity concrete of the cavity wall panel of the lower layer.
9. The construction method according to claim 6, further comprising, before arranging the independent support frame, the steps of:
and templates of the outer side heat-insulating layer are arranged on two sides of the cavity wallboard and fixed by split bolts, and the joints between the templates and the cavity wallboard are sealed by sponge strips.
10. The construction method according to claim 6, wherein the independent support frames are not more than 0.5 m away from the cavity wall panel, and the maximum support spacing between the independent supports in the independent support frames is not more than 2 m.
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