CN110593400A - Assembly type frame structure combination system and construction method thereof - Google Patents
Assembly type frame structure combination system and construction method thereof Download PDFInfo
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- CN110593400A CN110593400A CN201910874010.0A CN201910874010A CN110593400A CN 110593400 A CN110593400 A CN 110593400A CN 201910874010 A CN201910874010 A CN 201910874010A CN 110593400 A CN110593400 A CN 110593400A
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- floor slab
- steel bar
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- 238000010276 construction Methods 0.000 title claims abstract description 23
- 238000009415 formwork Methods 0.000 claims abstract description 48
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 28
- 239000010959 steel Substances 0.000 claims abstract description 28
- 239000002131 composite material Substances 0.000 claims description 31
- 238000000034 method Methods 0.000 claims description 11
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims description 4
- 239000011324 bead Substances 0.000 claims 3
- 238000009432 framing Methods 0.000 claims 1
- 230000002787 reinforcement Effects 0.000 description 18
- 238000009434 installation Methods 0.000 description 13
- 210000003205 muscle Anatomy 0.000 description 11
- 230000003014 reinforcing effect Effects 0.000 description 8
- 238000013461 design Methods 0.000 description 7
- 230000008901 benefit Effects 0.000 description 6
- 230000008569 process Effects 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000009417 prefabrication Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
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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
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/19—Three-dimensional framework structures
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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
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/19—Three-dimensional framework structures
- E04B1/1903—Connecting nodes specially adapted therefor
Abstract
The present disclosure provides an assembly type frame structure combination system and a construction method thereof, wherein the assembly type frame structure combination system comprises: at least one prefabricated floor slab; the bracket comprises at least two bracket superposed beams, wherein each bracket superposed beam comprises a U-shaped formwork, a beam steel bar assembly and two convex parts which are arranged at the outer side of the open end of the U-shaped formwork and are flush with the open end of the U-shaped formwork, and at least part of the beam steel bar assembly is embedded in the U-shaped formwork and the convex parts; two ends of the prefabricated floor slab are respectively lapped on the convex parts on the adjacent sides of the two bracket superposed beams; the bracket comprises at least four superposed columns, each superposed column comprises a column shell, a cavity enclosed by the column shell and a column steel bar assembly, two ends of the bottom of the U-shaped mould shell of each bracket superposed beam are respectively abutted against the outer sides of the top ends of the two column shells, and the bracket superposed beam is perpendicular to the superposed columns. The disclosure also provides a construction method of the assembled frame structure combination system. The steel bar hoisting device reduces the weight of prefabricated parts, the hoisting pressure of field machinery, the vertical support is omitted, and the field steel bar workload is reduced.
Description
Technical Field
The present disclosure relates to the field of prefabricated buildings, and more particularly to an assembly system of an assembled frame structure.
Background
One of the important measures for promoting the industrialized development of buildings and transformation and upgrade of the building industry in China is to promote the research and application of key technologies in aspects of building structure systems, building design, component parts and the like. The novel assembly type structure system is arranged in a hundred flowers, but most of the prefabricated components of the structure system are overweight, large in on-site support modulus, large in on-site manual work and low in industrialization degree. Particularly, a very dense vertical supporting system needs to be erected when a public building with a high floor height and a large span is constructed on site, a large number of templates are needed, and if traditional prefabrication is adopted, the weight of a single component is very large, the requirement on hoisting equipment is very high, the installation speed is slow, and the construction safety is difficult to control.
Disclosure of Invention
Through years of assembly type building design, production and research and development, abundant experience is accumulated, and a novel formwork-free assembly type frame structure system with light component weight is researched and developed, and a stress system is formed by adopting prefabricated superposed columns, prefabricated bracket superposed beams and prestressed double T plates or prestressed SP plates. The prefabricated superposed columns and the prefabricated bracket superposed beams adopt prefabricated shell concrete components, the floor slab adopts a prestressed floor slab suitable for a large-span structure, the structural system formed by combining the components can greatly reduce the on-site installation support modulus, the construction speed is high, the installation efficiency is high, the assembled and standardized building industrialization development trend is met, and the prefabricated composite column and the prefabricated bracket superposed beams are a new technology in the field of assembled buildings.
To address at least one of the above technical problems, the present disclosure provides a fabricated frame structure assembly system.
According to one aspect of the present disclosure, a fabricated frame structure assembly system includes: at least one prefabricated floor slab; each bracket superposed beam comprises a U-shaped formwork, a beam steel bar assembly and two convex parts which are arranged on the outer side of the opening end of the U-shaped formwork and are flush with the opening end of the U shape, wherein at least part of the beam steel bar assembly is embedded in the U-shaped formwork and the convex parts; two ends of the precast floor slab are respectively lapped on the convex parts on one adjacent side of the two bracket superposed beams; the bracket comprises at least four superposed columns, each superposed column comprises a column shell, a cavity surrounded by the column shell and a column steel bar assembly, two ends of the bottom of a U-shaped mould shell of each bracket superposed beam are respectively abutted to the outer sides of the top ends of the two column shells, and the bracket superposed beam and the superposed columns are perpendicular to each other.
According to at least one embodiment of the present disclosure, the column rebar assembly is at least partially embedded in the column casing, and at least one end of the column rebar assembly extends out of the column casing to serve as a column rebar outlet; and concrete is at least poured in the U-shaped formwork cavity, the column casing cavity and the column rib part, and the bracket superposed beam abutted against the superposed column is connected with the superposed column through the poured concrete.
According to at least one embodiment of the present disclosure, at least one end of the beam and reinforcement assembly extends to the outside towards the opening end of the U-shaped formwork to serve as a beam extending reinforcement part; and concrete is at least poured in the U-shaped formwork cavity and the beam rib part, and the prefabricated floor slab lapped on the protruding part of the bracket superposed beam is connected with the bracket superposed beam through the poured concrete.
According to at least one embodiment of the present disclosure, the precast floor slab includes one or more of a prestressed double T-slab, a prestressed hollow floor slab, and a prestressed composite floor slab.
According to at least one embodiment of the present disclosure, at the overlapping position of the precast floor slab and the protruding portion, corresponding embedded parts are arranged on both the precast floor slab and the protruding portion, and the embedded parts are used for fixing the relative positions of the precast floor slab and the protruding portion.
According to this disclosed at least one embodiment, roof beam reinforcing bar subassembly still includes roof beam and indulges the muscle, and a plurality of roof beam are indulged the muscle setting and are in roof beam goes out muscle portion top and stretch into in the post goes out muscle portion.
According to at least one embodiment of this disclosure, roof beam reinforcing bar subassembly still includes roof beam bottom longitudinal reinforcement, and wherein, at least partly roof beam bottom longitudinal reinforcement sets up in the bottom of U type die shell cavity just stretches into in the post goes out the muscle portion, and another part roof beam bottom longitudinal reinforcement buries underground at U type die shell bottom.
According to at least one embodiment of this disclosure, the roof beam bottom is indulged the muscle and is included the roof beam angle muscle, the roof beam angle muscle part is buried underground in the bight position of bracket coincide roof beam U type mould shell bottom to stretch out U type mould shell goes out muscle portion as the roof beam angle, roof beam angle goes out muscle portion and stretches into in the post goes out muscle portion.
According to another aspect of the present disclosure, there is provided a construction method of the fabricated frame structure combination system, including: the method comprises the following steps that (1) a superposed column is installed in place, a column rib outlet part is connected with a pre-buried dowel bar, and concrete is poured at the bottom of the superposed column; respectively erecting bracket superposed beam brackets in the middle and at 1/5 between the two superposed columns, and placing bracket superposed beams between the superposed columns onto the brackets; placing the beam bottom additional longitudinal rib at the bottom of the U-shaped formwork cavity of the bracket superposed beam, mounting a column additional stirrup on a column rib outlet part, and inserting a beam top longitudinal rib into the column rib outlet part; and a floor slab is arranged on the bracket superposed beam.
According to at least one embodiment of the present disclosure, in the process of installing the floor slabs, firstly, one column of the floor slabs at the outermost side are installed in a spanning symmetry mode, and then, the other adjacent columns of the floor slabs are installed in a spanning symmetry mode sequentially, wherein the spanning symmetry mode is that the adjacent floor slabs along the length direction of the floor slabs are installed sequentially.
Drawings
The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification, illustrate exemplary embodiments of the disclosure and together with the description serve to explain the principles of the disclosure.
Fig. 1 is a schematic structural view of a laminated column according to an embodiment of the present disclosure.
Fig. 2 is a schematic structural view of a corbel composite beam according to an embodiment of the present disclosure.
Fig. 3 is a schematic diagram of a pre-stressed double T-plate structure according to an embodiment of the present disclosure.
Fig. 4 is a schematic view of a corbel composite girder and precast floor slab composite structure according to an embodiment of the present disclosure.
Fig. 5 is a schematic view of a corbel composite beam and composite post structure according to an embodiment of the disclosure.
Fig. 6 is a schematic view of a precast floor slab construction sequence arrangement according to an embodiment of the present disclosure.
Reference numerals: 1-a corbel superposed beam; 13-embedded parts; 14-beam rib outlet part; 15-beam corner ribs; 16-a boss; 17-beam rebar assemblies; 18-U-shaped mould shell cavity; 2-a superposed column; 21-column shell; 22-column shell cavity; 23-column rebar assemblies; 24-column rib outlet part; 3, prefabricating a floor slab; 71-beam bottom longitudinal ribs; 72-beam top longitudinal ribs; 73-column additional stirrups; 8-upper column longitudinal ribs.
Detailed Description
The present disclosure will be described in further detail with reference to the drawings and embodiments. It is to be understood that the specific embodiments described herein are for purposes of illustration only and are not to be construed as limitations of the present disclosure. It should be further noted that, for ease of description, only those portions relevant to the present disclosure are shown in the drawings.
In addition, the features of the embodiments and modes in the present disclosure may be combined with each other without conflict. The present disclosure will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
The utility model discloses a novel exempt from formwork assembled frame construction system, the system comprises hollow column, prefabricated bracket mould shell roof beam and two T boards of prestressing force or prestressing force SP board. The floor slab adopts the prestressed floor slab which is suitable for a large span structure, the on-site installation support modulus can be greatly reduced, the construction speed is high, the installation efficiency is high, the main design method is equal to a cast-in-place structure, the comprehensive performance is equivalent to that of a common cast-in-place concrete structure, and the prestressed floor slab has the characteristics of safety, reliability, simplified construction, material consumption saving, dust raising and construction waste reduction and the like, and has strong market competitiveness.
According to a first embodiment of the present disclosure, there is provided a fabricated frame structure assembly system, comprising: at least one prefabricated floor slab; the prefabricated floor slab comprises but is not limited to one or more of a prestressed double-T slab, a prestressed hollow floor slab (prestressed SP slab), a prestressed composite floor slab and the like, and at least two bracket superposed beams, wherein each bracket superposed beam comprises a U-shaped formwork, a beam steel bar assembly and two bulges (namely concrete bracket parts) which are arranged outside the open end of the U-shaped formwork and are flush with the open end of the U-shaped formwork, and the bulges are used for supporting prefabricated components (such as the prefabricated floor slab and the like), and the beam steel bar assembly is at least partially embedded in the U-shaped formwork and the bulges; the cavity in the middle of the U-shaped structure enables the weight of the bracket superposed beam to be smaller, when the section of the frame beam is larger and the number of reinforcing bars is more, the weight advantage and the advantage of the rear inserted bottom reinforcing bar are more obvious, when the stress is larger, conditions are reserved for arranging prestressed reinforcing bars, and the rear inserted bottom reinforcing bar can well solve the problem of interference with column reinforcing bars during installation; two ends of the prefabricated floor slab are respectively lapped on the convex parts at the adjacent sides of the two bracket superposed beams, optionally, one convex part can be arranged according to actual requirements and is positioned at one side outside the U-shaped formwork of the bracket superposed beam; the bracket comprises at least four superposed columns, each superposed column comprises a column shell, a cavity enclosed by the column shell and a column steel bar assembly, two ends of the bottom of a U-shaped mould shell of each bracket superposed beam are respectively abutted to the outer sides of the top ends of the two column shells, and the bracket superposed beams are perpendicular to the superposed columns, for example, two ends of the bottom of the U-shaped mould shell of each bracket superposed beam are abutted to the top ends of the column shells of the superposed columns and are perpendicular to each other.
Optionally, the column reinforcement assembly is at least partially embedded in the column shell, at least one end of the column reinforcement assembly extends out of the column shell to serve as a column reinforcement outlet portion, and optionally, both ends of a column longitudinal reinforcement in the column reinforcement assembly extend out of the column shell from both ends of the column shell to the outside and are used for being connected with the inserted ribs of other foundations or superposed columns or superposed beams; and concrete is at least poured in a cast-in-place section formed by the U-shaped formwork cavity, the column casing cavity and the column rib part, and the bracket superposed beam abutted against the superposed column is connected with the superposed column through the poured concrete.
Optionally, at least one end of the beam reinforcement assembly extends to the outer side towards the opening end of the U-shaped formwork shell to be used as a beam reinforcement outlet part; and concrete is at least poured in a cast-in-place section formed by the cavity of the U-shaped formwork and the beam rib part, the prefabricated floor slabs and the bracket superposed beams which are overlapped on the protruding parts of the bracket superposed beams are connected through the poured concrete, for example, two prefabricated floor slabs and the bracket superposed beams which are overlapped on the two protruding parts of the same bracket superposed beam are connected through the poured concrete.
Optionally, corresponding embedded parts are arranged at the corresponding positions of the precast floor slab and the protruding portion at the lap joint of the precast floor slab and the protruding portion, the embedded parts may be embedded steel plates, the embedded steel plates in the precast slabs and the embedded steel plates of the protruding portion are welded together during construction, and the embedded parts are used for fixing the relative positions of the precast floor slab and the protruding portion.
Optionally, the beam reinforcement assembly further comprises a beam top longitudinal rib, and the beam top longitudinal ribs are arranged at the top end of the beam rib outlet portion and extend into the column rib outlet portion. For example, after the corbel composite beam is hoisted in place, the beam top longitudinal rib penetrates through the column rib outlet part of the composite column, penetrates through the top end of the beam rib outlet part of the corbel composite beam, and is bound, welded or mechanically connected with the beam rib outlet part.
Optionally, the beam-steel reinforcement assembly further includes a beam-bottom longitudinal reinforcement, and at least a portion of the beam-bottom longitudinal reinforcement is disposed at the bottom of the U-shaped formwork cavity and extends into the column-outlet reinforcement portion. For example, after the corbel composite beam is hoisted in place, a plurality of beam bottom longitudinal ribs are placed in the bottom of a beam shell cavity of the U-shaped structure, and the beam bottom longitudinal ribs in the cavity are anchored into the interior of the composite column according to relevant specifications.
Optionally, the longitudinal beam bottom ribs include beam corner ribs, the beam corner rib portions are embedded at corner positions of the bottom of the U-shaped formwork of the corbel composite beam, for example, two end portions of two corner longitudinal ribs of the first layer of longitudinal beam bottom ribs located on the bottom surface of the U-shaped structural beam all extend out of the formwork and extend out of the U-shaped formwork to serve as beam corner rib extending portions, and the beam corner rib extending portions extend into the column rib extending portions and are anchored into the composite column when concrete is poured.
According to another embodiment of the present disclosure, there is provided a method for constructing the fabricated frame structure combination system, including: the method comprises the following steps that (1) a superposed column is installed in place, a column rib outlet part is connected with a pre-buried dowel bar, and concrete is poured at the bottom of the superposed column; for example, the longitudinal bars of the superposed column (the superposed column is square) positioned at four corners and the longitudinal bars in the middle of the four sides are connected one by one to form temporary fixation, and a temporary lateral supporting device is not needed; removing a lifting appliance of the lifting machine, wherein the lifting machine can lift the next prefabricated part, and the connection of the residual longitudinal ribs of the superposed column can be carried out under the conditions of no lifting hook and no lateral support; after the longitudinal bars of the superposed columns are connected, the bottom cast-in-place sections can be respectively closed, and concrete is poured. Respectively erecting bracket superposed beam brackets in the middle and at 1/5 between the two superposed columns, and placing bracket superposed beams between the superposed columns onto the brackets; placing the beam bottom additional longitudinal rib at the bottom of the U-shaped formwork cavity of the bracket superposed beam, mounting a column additional stirrup on a column rib outlet part, and inserting a beam top longitudinal rib into the column rib outlet part; for example, the rest longitudinal bars of the beam penetrate into the beam shell and are simply fixed; hoisting the prefabricated bracket superposed beam in place, and adjusting longitudinal bars in the shell according to the positions of the longitudinal bars in the column in the hoisting process to prevent mutual interference; installing the stirrup in the cast-in-place section of the column in place; penetrating the longitudinal bars at the upper part of the beam one by one and placing the longitudinal bars according to the relevant specification requirements. And a floor slab is arranged on the bracket superposed beam.
Optionally, in the process of installing the floor slabs, firstly, a column of the floor slabs at the outermost side are installed in a spanning and symmetrical manner, and then, the adjacent other columns of the floor slabs are installed in a spanning and symmetrical manner sequentially, wherein the spanning and symmetrical manner is that the adjacent floor slabs along the length direction of the floor slabs are installed sequentially. For example, the outermost row of floor slabs are installed first, the installation sequence is along the length direction of the floor slabs, the two ends of the floor slabs are connected end to end and installed sequentially, the installation sequence of the adjacent row of floor slabs is the same as the installation sequence of the outermost row of floor slabs, and the rest other rows of floor slabs are installed.
The assembled frame structure combination system and the construction method thereof provided by the disclosure, 1) the superposed column is a hollow column, an outer side template can be omitted during construction, meanwhile, the quality of a prefabricated part is reduced, and when the section of the superposed column is larger, the weight advantage is more obvious; 2) the bracket superposed beam is prefabricated, so that an outer side template can be omitted during construction, and vertical support is reduced. Meanwhile, the mass of the prefabricated part is reduced, and when the cross section of the bracket superposed beam is large and the reinforcing bars are more, the weight advantage and the rear inserted bottom bar advantage are obvious. The corbels extend out of the two sides of the superposed beam, so that the reliable support of the prefabricated floor slab, particularly the prestressed floor slab with large requirement on the support, can be met; 3) the whole structure combination system is designed according to the concept of reducing the weight of prefabricated parts, reducing the on-site mechanical hoisting pressure, avoiding vertical supports, reducing the on-site operation amount of reinforcing steel bars and reducing on-site templates. The combined system completely accords with the design idea of building industrialization, and has very obvious advantages in a large-space frame system with high floor height, large load and large span; 4) the integral performance of the structure is equal to that of a cast-in-place structure, and the structure has the characteristics of safety, reliability, simplified construction, material consumption saving, reduction of raised dust and construction waste and the like, and has strong market competitiveness; 5) the system is particularly suitable for large-span concrete structures, and the floor slab is a prestressed member, so that the thickness of the floor slab can be reduced, the self weight is reduced, the cross section sizes of other supporting members are finally reduced, and the civil engineering cost is reduced.
The above-described fabricated frame structure assembly system and the construction method thereof will be described in detail with reference to specific embodiments.
The present disclosure provides an assembled frame structure combination system, comprising: at least one prefabricated floor 3, such as the prestressed double-T slab shown in fig. 3, the prefabricated floor 3 may also be a prestressed hollow floor and a prestressed composite floor. It should be noted that the example shown in fig. 3 is only for illustrative purposes and is not used as a limitation of the present disclosure, and those skilled in the art may adjust the shape to form other corresponding shapes according to the actual design situation. The structure is characterized by further comprising at least two corbel superposed beams 1, as shown in fig. 4, each corbel superposed beam 1 comprises a U-shaped formwork, a beam steel bar assembly 17 and two bulges 16 which are arranged on the outer side of the open end of the U-shaped formwork and are flush with the open end of the U-shaped formwork, wherein the beam steel bar assembly 17 is at least partially embedded in the U-shaped formwork and the bulges; two ends of the precast floor slab 3 are respectively lapped on the convex parts 16 on one adjacent side of the two bracket superposed beams 1; at least four superposed columns 2, each superposed column 2 comprises a column shell 21, a cavity 22 enclosed by the column shell and a column steel bar component 23, two ends of the bottom of the U-shaped formwork of each bracket superposed beam 1 are respectively abutted against the outer sides of the top ends of the two column shells 21, and the bracket superposed beam 1 is perpendicular to the superposed columns 2.
Fig. 1 shows a schematic top view of a hybrid column, and the hybrid column 2 comprises a column shell 21, a column shell cavity 22 and a column steel bar assembly 23, wherein the column steel bar assembly 23 is partially embedded in the column shell 21 of the hybrid column 2.
As shown in fig. 2, the corbel composite beam 1 includes a beam reinforcement assembly 17, a beam extending portion 14 extending out of the U-shaped formwork structure, a U-shaped formwork cavity 18, and a beam angle rib 15. As shown in FIG. 5, the beam angle rib 15 is partially embedded at the corner of the bottom of the U-shaped formwork of the corbel composite beam 1, and both beam angle ribs 15 extend out of the U-shaped formwork. The beam corner rib-extending part extends into the column rib-extending part and forms lap joint with the beam corner rib-extending part of the other bracket superposed beam 1 extending out of the formwork, and the beam corner rib-extending part is anchored into the superposed column 2 when concrete is poured.
Fig. 5 shows a combination of a laminated beam and a laminated column frame, wherein both ends of the column longitudinal bar in the column steel bar assembly 23 extend from both ends of the column shell to the outside to be used as column bar outlet portions 24 for connecting with the insertion bars of other foundation or laminated columns or laminated beams, for example, connecting with the upper column longitudinal bar 8 through a sleeve, binding, welding or mechanical connection. Concrete is poured at least in a cast-in-place section formed by the U-shaped formwork cavity 18, the column casing cavity 22 and the column rib part 24 of the bracket composite beam 1, and the bracket composite beam 1 abutting against the composite column 2 is connected with the composite column 2 through poured concrete. It should be noted that the example shown in fig. 5 is only for illustrative purpose and is not used as a limitation of the present disclosure, and those skilled in the art can also adjust the shape to form other corresponding shapes according to the actual design situation. In addition, those skilled in the art should also understand that the above shapes can be combined according to the actual design requirements.
Fig. 4 shows a frame combination form of the precast floor slab 3 and the corbel superposed beam 1, one end of the beam steel bar assembly 17 extends to the outside towards the opening end of the U-shaped formwork to serve as a beam rib outlet 14, after the precast floor slab 3 is hoisted in place, corresponding embedded parts 13 are arranged on the precast floor slab 3 and the bulge parts 16 at the lap joint of the precast floor slab 3 and the bulge parts 16, and the embedded parts 13 enable the relative positions of the precast floor slab 3 and the bulge parts 16 to be fixed. Concrete is poured at least in a cast-in-place section formed by the U-shaped formwork cavity 18 and the beam rib part 14, and the prefabricated floor slab 3 lapped on the protruding part 16 of the bracket superposed beam 1 is connected with the bracket superposed beam 1 through the poured concrete.
As shown in fig. 5, the beam-reinforcing member assembly 17 further includes a beam-top longitudinal rib 72 and a beam-bottom additional longitudinal rib 71. The additional longitudinal ribs 71 at the bottom of the beam can be inserted after the bracket superposed beam 1 is hoisted in place, so that the bracket superposed beam 1 is hoisted conveniently, and the rib outlet part is prevented from interfering with the rib outlet part 24 of the column. The beam top longitudinal rib 72 and the beam bottom additional longitudinal rib 71 both penetrate through the column rib outlet part 24 of the superposed column 2, after the corbel superposed beam 1 is hoisted in place, the beam top longitudinal rib 72 penetrates through the top end of the beam rib outlet part 14 of the corbel superposed beam 1, and the beam top longitudinal rib 72 and the beam rib outlet part 14 are bound, welded or mechanically connected together; the beam bottom additional longitudinal rib 71 is inserted into the bottom of the beam shell U-shaped structure cavity 18 from one end of the bracket composite beam 1, and the beam top longitudinal rib 72 and the beam bottom additional longitudinal rib 71 are anchored into the composite column 2 according to the standard of the photo-relation through pouring of a cast-in-place section. Although not shown in fig. 5, the number of the beam top longitudinal ribs 72 and the number of the beam bottom additional longitudinal ribs 71 are both a plurality of longitudinal ribs arranged at a certain distance and parallel to the length direction of the leg folding beam 1.
The present disclosure also provides a construction method of the assembled frame structure combination system, including: the superposed column 2 is installed in place, the column rib outlet part 24 is connected with the embedded inserted bars, and concrete is poured at the bottom of the superposed column 2; for example, the longitudinal ribs of the superposed column 2 (the superposed column is square) at the four corners and the longitudinal rib in the middle of the four sides are connected one by one to form temporary fixation, and a temporary lateral supporting device is not needed; removing a lifting appliance of the lifting machine, wherein the lifting machine can lift the next prefabricated part, and the connection of the remaining longitudinal ribs of the superposed column 2 can be carried out under the conditions of no lifting hook and no lateral support; after the longitudinal bars of the superposed columns 2 are connected, the bottom cast-in-place sections can be respectively closed, and concrete is poured. Respectively erecting brackets of the bracket superposed beams 1 at the middle part and the 1/5 part between the two superposed columns 1, and placing the bracket superposed beams 1 on the brackets between the superposed columns 2; placing the beam bottom additional longitudinal rib 71 at the bottom of the U-shaped mould shell cavity 18 of the bracket superposed beam 1, mounting a column additional stirrup 73 on the column rib outlet part 24, and inserting the beam top longitudinal rib 72 into the column rib outlet part 24; for example, the rest longitudinal bars of the beam are penetrated into the beam shell and simply fixed; hoisting the bracket superposed beam 1 in place, and adjusting longitudinal ribs in the shell according to the positions of the longitudinal ribs of the columns in the hoisting process to prevent mutual interference; installing the stirrup in the cast-in-place section of the column in place; the beam top longitudinal ribs 72 are penetrated one by one and placed according to the requirements of relevant specifications. And a floor slab is arranged on the bracket superposed beam. In the process of installing the floor slabs, firstly, a column of the floor slabs at the outermost side are installed in a spanning and symmetrical mode, and then, the adjacent other columns of the floor slabs are installed in a spanning and symmetrical mode sequentially, wherein the adjacent floor slabs along the length direction of the floor slabs are installed in a spanning and symmetrical mode sequentially. For example, the outermost row of floor slabs are installed first, the installation sequence is along the length direction of the floor slabs, the two ends of the floor slabs are sequentially installed in an end-to-end connection mode, the installation sequence of the adjacent row of floor slabs is the same as that of the outermost row of floor slabs, and the rest other rows of floor slabs are installed in the same manner. Fig. 6 shows a floor construction sequence layout diagram, when the hoisting of the B1 slab is completed, the C1 slab should be hoisted next, when the hoisting of the C1 slab is completed, the D1 slab should be hoisted, and the construction sequence is not such that the B2 slab should be hoisted directly when the hoisting of the B1 is completed. And after the first row of floor slabs are hoisted, hoisting the B2 plate, then hoisting the C2 plate, hoisting the D2 plate when the C2 plate is hoisted, and so on, and installing the rest other rows of floor slabs. Through the installation sequence, floor load is transmitted to the bulges at the two sides of the beam through the floor slab, if the floor slab is hoisted according to the sequence, the bulges at the two sides of the beam are stressed in a balanced manner when the precast floor slab is placed, and the phenomenon of torsion instability can be avoided. If the beam is not hoisted according to the sequence, the beam can be twisted under the load action of the precast floor slab, so that the instability causes the failure of installation.
In the description herein, reference to the description of the terms "one embodiment/mode," "some embodiments/modes," "example," "specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment/mode or example is included in at least one embodiment/mode or example of the application. In this specification, a schematic representation of the above terms does not necessarily refer to the same embodiment/manner or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments/modes or examples. Furthermore, the various embodiments/aspects or examples and features of the various embodiments/aspects or examples described in this specification can be combined and combined by one skilled in the art without conflicting therewith.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless explicitly specified otherwise.
It will be understood by those skilled in the art that the foregoing embodiments are merely for clarity of illustration of the disclosure and are not intended to limit the scope of the disclosure. Other variations or modifications may occur to those skilled in the art, based on the foregoing disclosure, and are still within the scope of the present disclosure.
Claims (10)
1. A fabricated frame structure composite system, comprising:
at least one prefabricated floor slab;
the bracket comprises at least two bracket superposed beams, wherein each bracket superposed beam comprises a U-shaped formwork, a beam steel bar assembly and two convex parts which are arranged at the outer side of the open end of the U-shaped formwork and are flush with the open end of the U-shaped formwork, and at least part of the beam steel bar assembly is embedded in the U-shaped formwork and the convex parts; and
two ends of the precast floor slab are respectively lapped on the convex parts on one adjacent side of the two bracket superposed beams;
the bracket comprises at least four superposed columns, each superposed column comprises a column shell, a cavity surrounded by the column shell and a column steel bar assembly, two ends of the bottom of a U-shaped mould shell of each bracket superposed beam are respectively abutted against the outer sides of the top ends of the two column shells, and the bracket superposed beam is perpendicular to the superposed columns.
2. The fabricated frame structure composite system of claim 1,
the column reinforcing steel bar assembly is at least partially embedded in the column shell, and at least one end of the column reinforcing steel bar assembly extends out of the column shell to serve as a column reinforcing steel bar outlet part; and
concrete is poured at least in the U-shaped formwork cavity, the column casing cavity and the column rib part, and the bracket superposed beam abutting against the superposed column is connected with the superposed column through the poured concrete.
3. The fabricated frame structure composite system of claim 1,
at least one end of the beam steel bar assembly extends to the outer side from the opening end of the U-shaped formwork shell to be used as a beam steel bar outlet part; and
concrete is at least poured in the U-shaped formwork cavity and the beam rib part, and the prefabricated floor slab lapped on the protruding part of the bracket superposed beam and the bracket superposed beam are connected through the poured concrete.
4. The fabricated framing structure combination system of claim 1, wherein the precast floor slab comprises one or more of a prestressed double-T slab, a prestressed hollow floor slab, and a prestressed composite floor slab.
5. The fabricated frame structure composite system according to claim 1, wherein corresponding embedded parts are arranged on the precast floor slab and the convex part at the joint of the precast floor slab and the convex part, and the embedded parts are used for fixing the relative positions of the precast floor slab and the convex part.
6. The fabricated frame structure composite system of claim 2, wherein said beam rebar assembly further comprises a beam top longitudinal bar, a plurality of beam top longitudinal bars being disposed on top of said beam out bar portions and extending into said column out bar portions.
7. The fabricated frame structure assembly system of claim 2, wherein the beam-reinforced steel bar assembly further comprises a bottom longitudinal bar, wherein at least a portion of the bottom longitudinal bar is disposed at the bottom of the U-shaped formwork cavity and extends into the column-extending bar portion, and another portion of the bottom longitudinal bar is embedded or partially embedded at the bottom of the U-shaped formwork.
8. The fabricated frame structure assembly system of claim 7, wherein said bottom longitudinal ribs comprise corner ribs, said corner ribs are partially embedded at the corners of the bottom of said U-shaped bracket shell and extend out of said U-shaped bracket shell as corner bead portions, said corner bead portions extend into said post bead portions.
9. A method of constructing a fabricated frame structure composite system according to any one of claims 1 to 8, comprising:
the method comprises the following steps that (1) a superposed column is installed in place, a column rib outlet part is connected with a pre-buried dowel bar, and concrete is poured at the bottom of the superposed column;
respectively erecting bracket superposed beam brackets in the middle and at 1/5 between the two superposed columns, and placing bracket superposed beams between the superposed columns onto the brackets;
placing the beam bottom additional longitudinal rib at the bottom of the U-shaped formwork cavity of the bracket superposed beam, mounting a column additional stirrup on a column rib outlet part, and inserting a beam top longitudinal rib into the column rib outlet part;
and a floor slab is arranged on the bracket superposed beam.
10. The construction method according to claim 9, wherein the floor slabs are installed by symmetrically installing the outermost one of the columns of the floor slabs across the floor slab, and then symmetrically installing the adjacent other columns of the floor slabs across the floor slab sequentially, wherein the symmetrically installing the adjacent floor slabs across the floor slab sequentially is performed.
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| CN201910874010.0A CN110593400A (en) | 2019-09-17 | 2019-09-17 | Assembly type frame structure combination system and construction method thereof |
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Address after: 102206 1st floor, building 6, 8 Beiqing Road, Huilongguan town, Changping District, Beijing Applicant after: Sany Construction Technology Co.,Ltd. Address before: Room 301, building 6, No. 8, Beiqing Road, Huilongguan town, Changping District, Beijing Applicant before: SANY CONSTRUCTION TECHNOLOGY Co.,Ltd. |