CN112359965A - Precast concrete assembled structure with rib mold structure and construction method thereof - Google Patents

Precast concrete assembled structure with rib mold structure and construction method thereof Download PDF

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Publication number
CN112359965A
CN112359965A CN202011312948.2A CN202011312948A CN112359965A CN 112359965 A CN112359965 A CN 112359965A CN 202011312948 A CN202011312948 A CN 202011312948A CN 112359965 A CN112359965 A CN 112359965A
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CN
China
Prior art keywords
shear wall
precast
precast concrete
prefabricated
composite
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Pending
Application number
CN202011312948.2A
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Chinese (zh)
Inventor
周泉
唐宇轩
李水生
李新星
姚延化
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China Construction Fifth Engineering Bureau Co Ltd
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China Construction Fifth Engineering Bureau Co Ltd
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Application filed by China Construction Fifth Engineering Bureau Co Ltd filed Critical China Construction Fifth Engineering Bureau Co Ltd
Priority to CN202011312948.2A priority Critical patent/CN112359965A/en
Publication of CN112359965A publication Critical patent/CN112359965A/en
Pending legal-status Critical Current

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Classifications

    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/02Structures consisting primarily of load-supporting, block-shaped, or slab-shaped elements
    • E04B1/04Structures consisting primarily of load-supporting, block-shaped, or slab-shaped elements the elements consisting of concrete, e.g. reinforced concrete, or other stone-like material
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/02Structures consisting primarily of load-supporting, block-shaped, or slab-shaped elements
    • E04B1/04Structures consisting primarily of load-supporting, block-shaped, or slab-shaped elements the elements consisting of concrete, e.g. reinforced concrete, or other stone-like material
    • E04B1/043Connections specially adapted therefor
    • E04B1/046Connections specially adapted therefor using reinforcement loops protruding from the elements
    • 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
    • E04B5/17Floor structures partly formed in situ
    • E04B5/18Floor structures partly formed in situ with stiffening ribs or other beam-like formations wholly cast between filling members
    • 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
    • E04B5/17Floor structures partly formed in situ
    • E04B5/18Floor structures partly formed in situ with stiffening ribs or other beam-like formations wholly cast between filling members
    • E04B5/21Cross-ribbed floors
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04CSTRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C2/00Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
    • E04C2/02Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
    • E04C2/04Building 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
    • E04C2/06Building 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
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04CSTRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C2/00Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
    • E04C2/30Building 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
    • 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
    • E04B5/17Floor structures partly formed in situ
    • E04B2005/173Floor structures partly formed in situ with permanent forms for the floor edges

Abstract

The invention discloses a precast concrete assembled structure with a ribbed die structure and a construction method thereof, wherein the precast concrete assembled structure with the ribbed die structure comprises at least one structural unit, and the structural unit comprises: the shear wall comprises a first precast concrete composite beam, a second precast concrete composite beam, a full precast concrete slab and 2 groups of shear wall composite structures, wherein each group of shear wall composite structure comprises a first precast shear wall and a second precast shear wall which are connected with each other, the first shear wall composite structure, the first precast concrete composite beam, the second shear wall composite structure and the second precast concrete composite beam are sequentially enclosed to form a structure with an upper shear wall, and the full precast concrete slab is arranged on the upper shear wall. The precast concrete assembled structure with the ribbed die structure aims to solve the technical problems that a pouring template needs to be manufactured, the template needs to be dismantled, the on-site wet workload is large, and the construction operation is inconvenient in the existing precast assembled structure.

Description

Precast concrete assembled structure with rib mold structure and construction method thereof
Technical Field
The invention relates to the field of prefabricated reinforced concrete structures, in particular to a prefabricated concrete structure with a ribbed die structure and a construction method thereof.
Background
The existing prefabricated structure system mainly comprises prefabricated components such as a prefabricated shear wall, a prefabricated composite slab and a prefabricated composite beam, and after hoisting, positioning and reinforcing steel bar arrangement and binding of the prefabricated components are completed, the processes of post-pouring and overlapping of the prefabricated components, sleeve grouting and reinforcing steel bar connection and the like are performed to form an integral structure. The existing prefabricated superposed system needs a large amount of on-site wet operation in a post-pouring superposition procedure, and also needs procedures of supporting and removing a pouring template and the like on one outdoor side corresponding to a component connecting part. Meanwhile, in order to reduce the disturbance of the prefabricated part in the processes of hoisting and post-pouring superposition, a large amount of vertical supports are needed for supporting and protecting the prefabricated part. And these processes are comparatively similar with the construction process of traditional cast-in-place structure, are difficult to embody the advantage that assembly type structure can improve the efficiency of construction greatly.
Disclosure of Invention
Technical problem to be solved
Based on the structure, the invention provides a precast concrete assembled structure with a rib mould structure, which aims to solve the technical problems of the existing precast concrete assembled structure that a pouring template needs to be manufactured, the template needs to be dismantled, the field wet operation amount is large, and the construction operation is inconvenient.
(II) technical scheme
In order to solve the above technical problem, the present invention provides a precast concrete fabricated structure of a ribbed die structure, wherein the precast concrete fabricated structure of the ribbed die structure includes at least one structural unit, and the structural unit includes: the shear wall composite structure comprises a first precast concrete composite beam, a second precast concrete composite beam, a fully precast concrete slab and 2 groups of shear wall composite structures, wherein each group of shear wall composite structure comprises a first precast shear wall and a second precast shear wall which are connected with each other, the side end, away from the second precast shear wall, of the first precast shear wall is provided with a first upper open slot, the side end, away from the first precast shear wall, of the second precast shear wall is provided with a second upper open slot, the transverse end of the first precast concrete composite beam is supported in the first upper open slot in the first shear wall composite structure, the transverse other end of the first precast concrete composite beam is supported in the second upper open slot in the second shear wall composite structure, and the transverse end of the second precast concrete composite beam is supported in the second upper open slot in the first shear wall composite structure, the transverse other end of the first precast concrete composite beam is supported in a first upper open groove in the second group of shear wall composite structures, so that the first group of shear wall composite structures, the first precast concrete composite beam, the second group of shear wall composite structures and the second precast concrete composite beam sequentially enclose a structure with an upper shear wall, and the fully precast concrete slab is arranged on the upper shear wall and seals the upper shear wall.
Preferably, the first precast shear wall has a plurality of first connecting rebars arranged in a vertical direction protruding from a side surface, the second precast shear wall has a vertical groove extending in the vertical direction at a side end thereof and a plurality of second connecting rebars located in the vertical groove, and the first connecting rebars protrude into the vertical groove at a connection point of the first precast shear wall and the second precast shear wall.
Preferably, the lower end of the first precast shear wall and the lower end of the second precast shear wall have a plurality of downwardly protruding supporting members, respectively.
Preferably, the lower end of the first prefabricated shear wall and the lower end of the second prefabricated shear wall are respectively provided with a plurality of stressed steel bars protruding downwards, and the upper end of the first prefabricated shear wall and the upper end of the second prefabricated shear wall are respectively provided with a plurality of stressed steel bars protruding upwards.
Preferably, the first precast concrete composite beam and the second precast concrete composite beam each include a beam main body, a protruding beam rib mold structure disposed above the beam main body, and a plurality of sets of stirrups, the beam rib mold structure is located outward with respect to the upper shear wall to form a platform with an upper surface of the beam main body, the stirrups are located inward with respect to the upper shear wall, and both lateral ends of the beam main body are further provided with a protruding end support member and a connecting longitudinal rib, respectively.
Preferably, the bottom of the precast concrete slab is provided with a slab bottom rib formwork structure protruding outwards, the side end of the precast concrete slab is further provided with a plurality of precast slab stressed steel bars and slab end supporting teeth protruding, and the precast slab stressed steel bars and the slab end supporting teeth at the connection part of the precast concrete slab and the beam main body extend into the position above the retaining platform.
Preferably, the number of the fully precast concrete slabs is at least 2, the slab bottom rib form structure at the joint of the fully precast concrete slab and the adjacent fully precast concrete slab is the same as the protruding length of the precast slab stress steel bar, the fully precast concrete slab is connected with one side of the first precast shear wall, the second precast shear wall, the first precast concrete composite beam and the second precast concrete composite beam, and the precast slab stress steel bar extends into the thickness direction center line of each of the first precast shear wall, the second precast shear wall, the first precast concrete composite beam and the second precast concrete composite beam.
Further, the present invention provides a method of constructing the precast concrete fabricated structure of the ribbed mold structure, wherein the method comprises the steps of:
a. hoisting and positioning the second prefabricated shear wall, and assembling and fixing the first prefabricated shear wall and the second prefabricated shear wall, wherein the first connecting steel bar of the first prefabricated shear wall needs to extend into the vertical groove of the second prefabricated shear wall, and after the assembly and the fixation of the first prefabricated shear wall and the second prefabricated shear wall are finished, the joint of the first prefabricated shear wall and the second prefabricated shear wall is subjected to component gap sealing treatment;
b. hoisting and positioning the precast concrete superposed beam: horizontally hoisting a first precast concrete composite beam and a second precast concrete composite beam to fall, so that one transverse end of the first precast concrete composite beam is supported in a first upper open slot in a first group of shear wall composite structures, the other transverse end of the first precast concrete composite beam is supported in a second upper open slot in a second group of shear wall composite structures, one transverse end of the second precast concrete composite beam is supported in a second upper open slot in the first group of shear wall composite structures, and the other transverse end of the first precast concrete composite beam is supported in a first upper open slot in the second group of shear wall composite structures;
c. hoisting and positioning the fully precast concrete plate: horizontally hoisting and dropping the fully precast concrete slab to an upper shear wall;
d. and after the structural unit or the structural units are assembled, performing post-pouring overlapping connection of the connection parts.
Preferably, the construction method further comprises, between the steps a and b: and c, detachably mounting prefabricated superposed beam supporting structures on the first prefabricated shear wall and the second prefabricated shear wall, wherein in the step b, the first prefabricated concrete superposed beam and the second prefabricated concrete superposed beam are also supported on the prefabricated superposed beam supporting structures.
Preferably, in the step b, a step of installing a support structure at the side of the first precast concrete superposed beam and the second precast concrete superposed beam for supporting the precast slab is further included.
(III) advantageous effects
Compared with the prior art, the precast concrete assembled structure with the rib mould structure has the beneficial effects that:
after the prefabricated concrete assembly type structure with the ribbed die structure is assembled and hoisted, the construction of connecting parts can be directly performed without secondary member supporting, post-pouring part template manufacturing and template dismounting after prefabricated components (such as the first prefabricated shear wall, the second prefabricated shear wall, the first prefabricated concrete superposed beam and the like) are assembled and hoisted, the prefabricated concrete assembly type structure with the ribbed die structure has the advantages of rapid assembly of the components, high efficiency and high fault tolerance, and the purposes of casting-free template supporting, field wet operation reduction, field construction procedure simplification and construction efficiency improvement can be achieved by designing the construction form of the prefabricated components.
Drawings
The features and advantages of the present invention will be more clearly understood by reference to the accompanying drawings, which are illustrative and not to be construed as limiting the invention in any way, and in which:
fig. 1 is a schematic view of positioning and assembling a fully precast concrete panel according to an embodiment of the present invention;
FIG. 2 is a schematic structural view of a first prefabricated shear wall according to an embodiment of the invention;
FIG. 3 is a schematic structural view of a second prefabricated shear wall according to an embodiment of the invention;
fig. 4 is a schematic structural view of a first precast concrete composite beam or a second precast concrete composite beam according to an embodiment of the present invention;
fig. 5 is a schematic structural view of a fully precast concrete panel according to an embodiment of the present invention;
FIG. 6 is a schematic view of a two-layer structural unit of a precast concrete fabricated structure of a ribbed die construction according to an embodiment of the present invention;
FIG. 7 is a schematic view of a first precast shear wall assembled with a second precast shear wall in accordance with an embodiment of the present invention;
fig. 8 is a schematic view illustrating assembly of a second precast concrete composite beam according to the embodiment of the present invention;
FIG. 9 is a schematic view showing an intermediate process in installing two-layered structural units of the precast concrete fabricated structure of the ribbed die structure according to the embodiment of the present invention;
fig. 10 is a partial component view of a precast concrete fabricated structure according to a preferred embodiment of the present invention.
Description of reference numerals:
1. the prefabricated concrete composite beam comprises a first prefabricated concrete composite beam, 2, a second prefabricated concrete composite beam, 3, a fully prefabricated concrete slab, 4, a first prefabricated shear wall, 5, a second prefabricated shear wall, 6, a first upper open slot, 7, a second upper open slot, 8, a first connecting steel bar, 9, a vertical groove, 10, a second connecting steel bar, 11, a supporting short column, 12, a stressed steel bar, 13, a beam main body, 14, a beam rib mould structure, 15, a stirrup, 16, an end supporting component, 17, a connecting longitudinal bar, 18, a plate bottom rib mould structure, 19, a prefabricated plate stressed steel bar, 20, a plate end supporting tooth, 21, a wall rib mould structure, 22, a rib mould structure end plate, 23, high-performance concrete, 24, a horizontal floor slab supporting rod, 100 and a prefabricated composite beam supporting structure.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, but rather should be construed as broadly as the present invention is capable of modification in various respects, all without departing from the spirit and scope of the present invention.
Referring to fig. 1 to 6, the present invention provides a precast concrete fabricated structure of a ribbed mold structure, including at least one structural unit, the structural unit including: the shear wall composite structure comprises a first precast concrete composite beam 1, a second precast concrete composite beam 2, fully precast concrete plates 3 and 2 groups of shear wall composite structures (the first group of shear wall composite structure is on the left in figure 1, the second group of shear wall composite structure is on the right in figure 1), each group of shear wall composite structures comprises a first precast shear wall 4 and a second precast shear wall 5 which are connected with each other, the side end, away from the second precast shear wall 5, of the first precast shear wall 4 is provided with a first upper open slot 6, the side end, away from the first precast shear wall 4, of the second precast shear wall 5 is provided with a second upper open slot 7, one transverse end of the first precast concrete composite beam 1 is supported in the first upper open slot 6 in the first group of shear wall composite structures, the other transverse end of the first precast concrete composite beam 1 is supported in the second upper open slot 7 in the second group of shear wall composite structures, one transverse end of the second precast concrete composite beam 2 is supported in the second upper open slot 7 in the first group of shear wall composite structures In the open groove 7, the other transverse end of the first precast concrete composite beam 1 is supported in a first upper open groove 6 in the second set of shear wall composite structure, so that the first set of shear wall composite structure, the first precast concrete composite beam 1, the second set of shear wall composite structure and the second precast concrete composite beam 2 are sequentially enclosed into a structure (such as a 4-edge shear wall or other shapes) with an upper shear wall, and the fully precast concrete slab 3 is arranged on the upper shear wall and closes the upper shear wall. A multilayer structure may be formed from a plurality of structural units from top to bottom as desired.
According to the embodiment of the invention, the first precast shear wall 4 is provided with a plurality of first connecting rebars 8 which are arranged in the vertical direction and protrude from the side surfaces, the side ends of the second precast shear wall 5 are provided with vertical grooves 9 which extend in the vertical direction, and a plurality of second connecting rebars 10 which are arranged in the vertical grooves 9, and the first connecting rebars 8 extend into the vertical grooves 9 at the connection position of the first precast shear wall 4 and the second precast shear wall 5. When the first precast shear wall 4 and the second precast shear wall 5 are connected to form an L-shaped shear wall composite structure, the two L-shaped shear wall composite structures are arranged in a spaced and facing manner, so that the first precast concrete composite beam 1, the second precast concrete composite beam 2 and the fully precast concrete slab 3 are conveniently erected above the first precast shear wall 4, and the width of the first precast shear wall 4 may be smaller than that of the second precast shear wall 5, but these schemes may be appropriately changed and are not used to limit the present invention.
In addition, the lower end of the first precast shear wall 4 and the lower end of the second precast shear wall 5 are respectively provided with a plurality of support members protruding downwards, the support members may be in the form of support short columns 11 or other appropriate structures, and the support members may be embedded in the precast members, or may be positioned and installed on site, and serve as permanent support positioning components for hoisting and positioning the precast shear walls. Of course, the tops of the first precast shear wall 4 and the second precast shear wall 5 may also be provided with a wall rib form structure 21 and a rib form structure end plate 22 provided for partial post-cast lamination.
Certainly, the lower end of the first precast shear wall 4 and the lower end of the second precast shear wall 5 may be respectively provided with a plurality of stressed steel bars 12 protruding downward, the upper end of the first precast shear wall 4 and the upper end of the second precast shear wall 5 are respectively provided with a plurality of stressed steel bars 12 protruding upward, and the upper end and the lower end of each steel bar are arranged to be used as stressed connecting steel bars for connecting the upper precast shear wall, the lower precast shear wall and the full precast slab.
As a specific configuration example (without limiting the present invention) of the first and second precast concrete composite beams 1 and 2, each of the first and second precast concrete composite beams 1 and 2 includes a beam main body 13, a protruding beam rib mold structure 14 and a plurality of sets of stirrups 15 disposed above the beam main body 13, the beam rib mold structure 14 being located outward with respect to the upper shear wall to form a stop with an upper surface of the beam main body 13, the stirrups 15 being located inward with respect to the upper shear wall, and both lateral ends of the beam main body 13 being further provided with protruding end support members 16 (e.g., precast beam cow boards) and connecting longitudinal ribs 17, respectively. More specifically, the beam rib formwork structure 14 is used for a partial post-cast superimposed rib formwork structure and can be used as an end structure of a casting formwork-free structure; the stirrups 15 can be in the form of open stirrups 15 and extend upwards from inside (the open stirrups 15 can be in the form of a hook without limitation, and can also be in the form of linear steel bars), and the connecting longitudinal bars 17 extend from the inside of the beam main body 13 to two ends and serve as connecting stressed steel bars between the prefabricated superposed beam and the prefabricated shear wall; the precast beam corbel plate is used as a permanent end supporting member 16 of the precast member, extends out from the beam main body 13 to two ends, and the structure can be a pre-buried steel plate, can also adopt a reinforced concrete structure, or other reasonable alternative modes all fall into the protection scope of the invention.
According to the embodiment of the invention, the bottom of the fully precast concrete slab 3 is provided with the slab bottom rib mold structure 18 protruding outwards, the slab bottom rib mold structure 18 is arranged at the position, high-performance concrete is convenient to pour at the position, the local post-pouring connection between the precast components is completed, an effective vibration working space can be provided for a vibration device in the pouring process, the pouring quality is improved, and the connection performance between the components is effectively exerted. The side end of the fully precast concrete slab 3 is also provided with a plurality of precast slab stressed steel bars 19 and slab end supporting teeth 20 which are protruded, and under the condition that at least 2 fully precast concrete slabs 3 are arranged, the precast slab stressed steel bars 19 and the slab end supporting teeth 20 at the joint of the fully precast concrete slab 3 and the beam main body 13 extend into the position above a retaining platform, more specifically, the extending length of the precast slab stressed steel bars 19 at the side where the fully precast concrete slabs 3 are spliced is consistent with the extending width of the slab bottom rib formwork structure 18 and is mutually staggered with the precast slab stressed steel bars 19 of adjacent members; the extended length of the precast slab stressed steel bar 19 at the side spliced with the shear wall (beam) extends to the center line of the shear wall (beam), but the invention is not limited to this. The fully precast concrete slab 3 can be a solid slab or a hollow slab; meanwhile, the function use of the full precast concrete plate 3 is not limited, and the all-precast concrete plate can also be used for horizontal plates such as a floating window plate, an air conditioner plate, a balcony slab and the like.
In addition, the invention also provides a construction method of the precast concrete fabricated structure with the ribbed die structure, which comprises the following steps:
a. the assembling of the 2 groups of shear wall composite structures in place can be conveniently understood by referring to fig. 7 and 8, wherein the assembling of each group of shear wall composite structures in place comprises the steps of hoisting and positioning the second prefabricated shear wall 5, assembling and fixing the first prefabricated shear wall 4 and the second prefabricated shear wall 5, wherein the first connecting steel bars 8 of the first prefabricated shear wall 4 need to extend into the vertical grooves 9 of the second prefabricated shear wall 5, and after the assembling and fixing of the first prefabricated shear wall 4 and the second prefabricated shear wall 5 are completed, component gap sealing treatment is carried out on the connecting part of the first prefabricated shear wall 4 and the second prefabricated shear wall 5, so that high-performance concrete can be poured subsequently, and staggered mutual anchoring connection between the vertical connecting steel bars of the prefabricated shear walls is realized;
b. as can be conveniently understood by referring to fig. 1 and 8, the precast concrete composite beam is hoisted and positioned: horizontally hoisting and dropping a first precast concrete composite beam 1 and a second precast concrete composite beam 2, so that one transverse end of the first precast concrete composite beam 1 is supported in a first upper open slot 6 in a first group of shear wall composite structures, the other transverse end of the first precast concrete composite beam 1 is supported in a second upper open slot 7 in a second group of shear wall composite structures, one transverse end of the second precast concrete composite beam 2 is supported in the second upper open slot 7 in the first group of shear wall composite structures, and the other transverse end of the first precast concrete composite beam 1 is supported in the first upper open slot 6 in the second group of shear wall composite structures, wherein it is ensured that an end supporting member 16 (which may be a precast joists plate) of a beam main body 13 falls into the corresponding upper open slot (the first upper open slot 6 or the second open slot), which can realize the rapid positioning and assembling of the precast concrete composite beams, effective component supports are formed, and the number of supports erected at the lower part of the precast concrete composite beam is greatly reduced;
c. as can be easily understood with reference to fig. 1 and 9, the hoisting positioning of the fully precast concrete slab 3 is carried out: the fully precast concrete plate 3 is horizontally hoisted and falls down, the fully precast concrete plate is hoisted and falls down to an upper shear wall, the plate end supporting teeth 20 can fall down and are placed on the precast shear walls (specifically, the first precast shear wall 4 and the second precast shear wall 5) or the precast superposed beams (specifically, the first precast concrete superposed beam 1 and the second precast concrete superposed beam 2), the rapid positioning assembly of the fully precast concrete plate 3 is realized, effective component support is formed, and the lower part support of the fully precast concrete plate 3 does not need to be erected on site;
d. as can be conveniently understood by referring to fig. 6 and 9, after-pouring overlapping connection processes of connecting portions are performed after assembling of a structural unit (specifically, assembling of the first precast shear wall 4 and the second precast shear wall 5 and the first precast concrete composite beam 1, the second precast concrete composite beam 2, and the whole precast concrete slab 3 in each set of shear wall composite structure in a structural unit) is completed, or after assembling of a plurality of structural units is completed, for example, the present invention may design only one layer of structural unit, or may design upper and lower two layers of structural units as shown in fig. 6, or even more layers of structural units, as required, and the after-pouring overlapping connection processes may specifically be wall-wall (for example, the first precast shear wall 4 and the second precast shear wall 5), wall-beam (for example, the first precast shear wall 4 and the first precast concrete composite beam 1), wall-beam-, The method is characterized in that the connection parts of the wall and the plate (such as the first precast shear wall 4 and the full precast concrete plate 3), the beam and the plate (such as the first precast concrete superposed beam 1 and the full precast concrete plate 3), the plate and the plate (the full precast concrete plate 3 and the full precast concrete plate 3) and the like are subjected to the process treatment of the high-performance concrete 23 steel bar non-contact lap joint local post-pouring technology, so that the assembled structure rapid construction solution which is free of steel bar sleeve connection, free of pouring of a template, less in-site wet operation amount and convenient for construction operation is realized. Under the condition that the construction process is reasonable and meets relevant regulations, the operation reasonably adjusts the operation sequence.
Referring to fig. 10, according to a preferred embodiment of the present invention, the construction method further includes the steps between steps a and b of: the precast composite beam support structure 100 is detachably mounted on the first precast shear wall 4 and the second precast shear wall 5, in step b, the first precast concrete composite beam 1 and the second precast concrete composite beam 2 are further supported on the precast composite beam support structure 100, and in step b, a step of mounting a support structure at the side of the first precast concrete composite beam 1 and the second precast concrete composite beam 2 for supporting precast slabs is further included, the precast composite beam support structure 100 and the support structure may be suitable supports of various shapes, a flat plate-shaped plate member or a U-shaped plate member with a vertical limiting plate may be disposed at the upper end of the precast composite beam support structure 100, or other suitable shapes may be possible, and the support structure may be used for fixing the horizontal floor slab support rods 24 when the support structure is a U-shaped plate member.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.
Although the embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the invention, and such modifications and variations fall within the scope defined by the appended claims.

Claims (10)

1. A precast concrete fabricated structure of a ribbed die structure, comprising at least one structural unit, the structural unit comprising: the shear wall composite structure comprises a first precast concrete composite beam, a second precast concrete composite beam, a fully precast concrete slab and 2 groups of shear wall composite structures, wherein each group of shear wall composite structure comprises a first precast shear wall and a second precast shear wall which are connected with each other, the side end, away from the second precast shear wall, of the first precast shear wall is provided with a first upper open slot, the side end, away from the first precast shear wall, of the second precast shear wall is provided with a second upper open slot, the transverse end of the first precast concrete composite beam is supported in the first upper open slot in the first shear wall composite structure, the transverse other end of the first precast concrete composite beam is supported in the second upper open slot in the second shear wall composite structure, and the transverse end of the second precast concrete composite beam is supported in the second upper open slot in the first shear wall composite structure, the transverse other end of the first precast concrete composite beam is supported in a first upper open groove in the second group of shear wall composite structures, so that the first group of shear wall composite structures, the first precast concrete composite beam, the second group of shear wall composite structures and the second precast concrete composite beam sequentially enclose a structure with an upper shear wall, and the fully precast concrete slab is arranged on the upper shear wall and seals the upper shear wall.
2. The precast concrete fabricated structure of a ribbed die structure according to claim 1, wherein the first precast shear wall has a plurality of first connection bars protruding from a side surface in a vertical arrangement, and the second precast shear wall has a side end having a vertical groove extending in the vertical direction and a plurality of second connection bars located in the vertical groove, the first connection bars protruding into the vertical groove at a connection of the first precast shear wall and the second precast shear wall.
3. The precast concrete fabricated structure of a ribbed die structure according to claim 2, wherein the lower end of the first precast shear wall and the lower end of the second precast shear wall have a plurality of downwardly protruding supporting members, respectively.
4. The precast concrete fabricated structure of a ribbed die structure according to claim 3, wherein the lower end of the first precast shear wall and the lower end of the second precast shear wall have a plurality of downwardly protruding force-receiving reinforcing bars, respectively, and the upper end of the first precast shear wall and the upper end of the second precast shear wall have a plurality of upwardly protruding force-receiving reinforcing bars, respectively.
5. The precast concrete fabricated structure of a ribbed formwork structure according to claim 4, wherein the first precast concrete superposed beam and the second precast concrete superposed beam each include a beam main body, a protruding beam rib formwork structure provided above the beam main body, the beam rib formwork structure being located outward with respect to the upper shear wall to form a block with an upper surface of the beam main body, and a plurality of sets of stirrups located inward with respect to the upper shear wall, both lateral ends of the beam main body being further provided with protruding end support members and connecting longitudinal bars, respectively.
6. The precast concrete fabricated structure of a ribbed formwork construction according to claim 5, wherein the bottom of the precast concrete slab has a slab bottom ribbed formwork construction protruded outwardly, the lateral ends of the precast concrete slab are further provided with a plurality of precast slab stress bars and slab end support teeth protruded, and the precast slab stress bars and the slab end support teeth at the junction of the precast concrete slab and the girder main body are protruded above the blocking platform.
7. The precast concrete assembled structure of the ribbed mold structure according to claim 6, wherein the number of the precast concrete slabs is at least 2, the slab bottom rib mold structure of the butt joint of the precast concrete slabs and the adjacent precast concrete slabs is the same as the protruding length of the precast slab stress steel bar, the precast concrete slabs are connected with the first precast shear wall, the second precast shear wall, the first precast concrete superposed beam and the second precast concrete superposed beam at one side, and the precast slab stress steel bar is inserted into the thickness direction center lines of the first precast shear wall, the second precast shear wall, the first precast concrete superposed beam and the second precast concrete superposed beam.
8. A construction method of a precast concrete fabricated structure of a ribbed die structure according to claim 7, characterized by comprising the steps of:
a. hoisting and positioning the second prefabricated shear wall, and assembling and fixing the first prefabricated shear wall and the second prefabricated shear wall, wherein the first connecting steel bar of the first prefabricated shear wall needs to extend into the vertical groove of the second prefabricated shear wall, and after the assembly and the fixation of the first prefabricated shear wall and the second prefabricated shear wall are finished, the joint of the first prefabricated shear wall and the second prefabricated shear wall is subjected to component gap sealing treatment;
b. hoisting and positioning the precast concrete superposed beam: horizontally hoisting a first precast concrete composite beam and a second precast concrete composite beam to fall, so that one transverse end of the first precast concrete composite beam is supported in a first upper open slot in a first group of shear wall composite structures, the other transverse end of the first precast concrete composite beam is supported in a second upper open slot in a second group of shear wall composite structures, one transverse end of the second precast concrete composite beam is supported in a second upper open slot in the first group of shear wall composite structures, and the other transverse end of the first precast concrete composite beam is supported in a first upper open slot in the second group of shear wall composite structures;
c. hoisting and positioning the fully precast concrete plate: horizontally hoisting and dropping the fully precast concrete slab to an upper shear wall;
d. and after the structural unit or the structural units are assembled, performing post-pouring overlapping connection of the connection parts.
9. The construction method of a precast concrete fabricated structure of ribbed mold construction according to claim 8, characterized in that it further comprises, between the steps a and b, the steps of: and c, detachably mounting prefabricated superposed beam supporting structures on the first prefabricated shear wall and the second prefabricated shear wall, wherein in the step b, the first prefabricated concrete superposed beam and the second prefabricated concrete superposed beam are also supported on the prefabricated superposed beam supporting structures.
10. The method of constructing a precast concrete fabricated structure of a ribbed mold construction according to claim 8, further comprising a step of installing a support structure at sides of the first and second precast concrete superposed beams for supporting the precast slabs in the step b.
CN202011312948.2A 2020-11-20 2020-11-20 Precast concrete assembled structure with rib mold structure and construction method thereof Pending CN112359965A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113818562A (en) * 2021-09-30 2021-12-21 三一筑工科技股份有限公司 Construction method of assembled frame structure

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113818562A (en) * 2021-09-30 2021-12-21 三一筑工科技股份有限公司 Construction method of assembled frame structure

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