CN112575900A - Double-layer synchronous hoisting construction method for large-span precast beam of assembled industrial factory building - Google Patents
Double-layer synchronous hoisting construction method for large-span precast beam of assembled industrial factory building Download PDFInfo
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- CN112575900A CN112575900A CN202011270840.1A CN202011270840A CN112575900A CN 112575900 A CN112575900 A CN 112575900A CN 202011270840 A CN202011270840 A CN 202011270840A CN 112575900 A CN112575900 A CN 112575900A
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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
- E04B1/342—Structures covering a large free area, whether open-sided or not, e.g. hangars, halls
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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
- E04B1/35—Extraordinary methods of construction, e.g. lift-slab, jack-block
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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
- E04B1/38—Connections for building structures in general
- E04B1/58—Connections for building structures in general of bar-shaped building elements
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Abstract
A double-layer synchronous hoisting construction method for a large-span precast beam of an assembled industrial factory building comprises the following steps: 1) constructing a first layer of lattice column, a side span column, a column cap and a beam pad; 2) hoisting all the small-span prefabricated main beams and the secondary beams; 3) constructing a second floor slab in the area of the small-span beam; 4) constructing a second layer of side span columns; 5) hoisting the second layer of latticed column; 6) hoisting a third layer of small-span prefabricated main beam and a secondary beam; 7) alternately hoisting the second layer and the third layer of large-span precast beams; 8) performing steel bar binding and concrete pouring on the second layer of latticed columns and the column caps and the second layer of beam column nodes; 9) and (5) carrying out floor slab construction in the second layer of large-span precast beam area and the third layer of integral area. The invention can rapidly finish the hoisting of the large-span precast beam and other components in a limited field environment, and accelerate the production operation efficiency of the assembly type building.
Description
Technical Field
The invention relates to the technical field of construction of constructional engineering, in particular to a double-layer synchronous hoisting construction technology for a large-span precast beam in construction of an assembled industrial factory building.
Background
With the continuous development of the construction industry, the assembly type building is continuously paid attention to the industry as an important mark for the industrial transformation of the building, and the hoisting operation is always a serious difficulty point for the construction management of large-scale assembly type industrial plants. Along with the continuous increase of industrial factory building function, prefabricated component dead weight and span also constantly increase, and hoist and mount operation in the reality often can receive the hindrance of objective factors such as narrow and small in place. Therefore, the double-layer synchronous hoisting construction technology for the large-span precast beam is invented, the hoisting capacity of the large-span precast beam or other components can be rapidly completed in a limited field environment, the production operation efficiency of the assembly type building is accelerated, and a new thought is explored for the hoisting operation of large components of the large assembly type building.
Disclosure of Invention
The invention aims to solve the technical problem of providing a double-layer synchronous hoisting construction technology for a large-span precast beam in the construction of an assembled industrial factory building.
In order to solve the technical problem, the technical scheme adopted by the invention is a double-layer synchronous hoisting construction method for a large-span precast beam of an assembled industrial factory building, which comprises the following steps:
1) constructing a first layer of lattice column, a side span column, a column cap and a beam pad;
2) hoisting all the small-span prefabricated main beams and secondary beams at the tops of the lattice columns and the side-span columns on the first layer;
3) constructing a second floor slab in the area of the small-span beam;
4) after the floor slab concrete of the second layer of small-span area meets the strength requirement, hoisting a second layer of side-span columns, and then completing concrete construction of a column body and a column cap of the side-span columns;
5) hoisting a second layer of latticed columns with steel column caps, wherein the top ends of the first layer of latticed columns are connected with the bottom ends of the second layer of latticed columns in a welding manner, and the batten plates extending out of the periphery of the first layer of latticed columns are connected by bolts;
6) after the concrete strength of the second layer of side span columns meets the requirement, hoisting a third layer of small-span prefabricated main beam and a secondary beam;
7) hoisting a second layer of large-span beam, then hoisting a third layer of large-span beam above the hoisted second layer of large-span beam, and alternately hoisting a second layer of third layer of large-span precast beam;
8) after the second layer and the third layer of large-span beams are hoisted, the outer-wrapped reinforced concrete of the second layer of lattice columns and column caps and the reinforced bars of the second layer of beam-column nodes are bound and concrete is poured;
9) and (5) carrying out floor slab construction in the second layer of large-span precast beam area and the third layer of integral area.
Further, in the step 1, the lattice column is a lattice type axis pressed batten column, and reinforced concrete is wrapped outside the lattice type axis pressed batten column.
Further, in the step 3), before hoisting the second layer of lattice column with the steel column cap, the operation of hoisting is performed after grouting on the ground.
Further, in the step 3) and the step 9), the floor slab adopts a steel bar truss floor bearing plate.
Further, in the step 4), the second layer of side span column with the column cap is a reinforced concrete column, and an integral large steel mould hoisting construction process is adopted.
Further, in the step 7), the long-span precast beam is a precast beam with a length of more than 20 meters, a section length of more than 1.5 meters and a self weight of more than 30 tons.
Further, in the step 8), a wood formwork square and round buckle reinforcing system is adopted for wrapping reinforced concrete outside the second layer of lattice columns, and an operation frame and an outer protection frame are erected around the second layer of lattice columns by adopting a coil buckle type scaffold; the wood formwork in the column cap area is fastened by adopting a split bolt frame square tube.
The double-layer synchronous hoisting construction technology for the large-span precast beam in the construction of the assembly type industrial factory building, disclosed by the invention, can quickly finish hoisting of the large-span precast beam and other components in a limited field environment, accelerate the production operation efficiency of the assembly type building and explore a new idea for the hoisting operation of large components of the large assembly type building.
Drawings
FIG. 1 is a schematic diagram of the arrangement structure of first-layer lattice pillars and side-span pillars.
Fig. 2 is a schematic diagram of hoisting of a second layer of small-span beams and a second layer of side-span columns.
Fig. 3 is a schematic view of a hoisting structure of the second layer of lattice column.
Fig. 4 is a schematic view of a connection structure of upper and lower layers of lattice columns.
Fig. 5 is a schematic diagram of a hoisting structure of a third layer of small-span beam.
Fig. 6 is a schematic diagram of a large-span beam hoisting structure.
Detailed Description
In order that the present disclosure may be more readily and clearly understood, reference is now made to the following detailed description of the present disclosure taken in conjunction with the accompanying drawings.
Referring to the attached drawings 1 to 6, the construction method for synchronously hoisting the large-span precast beam in the construction of the assembly type industrial factory building comprises the following construction steps:
firstly, the construction of a first layer of lattice column 6 and an edge-span column 4 is completed: firstly, the latticed column 6 is constructed: firstly, the construction of wrapping reinforced concrete outside the lattice type axis compression studded bar column 1 and the construction of the column cap 2 and the beam pad 3 on the column cap are carried out. The specific operation steps are as follows: and erecting a plate buckle type operation protective frame at the periphery of the column, binding reinforcing steel bars, finishing template laying and reinforcing by adopting a wood template and square and round buckle system, and then pouring concrete. The beam pad 3 and the column cap 2 are fastened by adopting split bolts and square pipes. And then constructing a side span column 4, wherein the side span column 4 is a reinforced concrete column, the construction of a side span column body and a column cap is completed at one time by adopting a large steel mould integral hoisting construction process, and a beam pad 5 on the column cap is reinforced by adopting a wood mould split bolt process and is poured synchronously with the column and the column cap.
And after the concrete strength of the first layer of lattice column 6 and the side span column 4 meets the requirement, selecting a proper crawler crane 7 according to the hoisting weight and the working radius of the crane to hoist the small-span main beam 8 and the small-span secondary beam 9 of the second layer in the middle area.
And after the hoisting of the small-span main beam and the small-span secondary beam on the second floor is completed, constructing a second floor slab in the area where the small-span beam is located, wherein the floor slab adopts a steel bar truss floor bearing plate. And after the floor slab construction in the second layer of small span beam area is finished, constructing the side span columns positioned at the periphery of the second layer. The concrete construction of the column body 10 and the column cap 11 of the reinforced concrete side-span column is completed by adopting a large steel mould integral hoisting construction process.
And hoisting the second layer of latticed columns 13 and the steel column caps 12 by adopting a truck crane with a smaller gyration radius, wherein grouting needs to be completed on the ground before hoisting the second layer of latticed columns. The top end of the first layer of lattice column is connected with the bottom end of the second layer of lattice column through welding, and the batten plates 14 extending out of the periphery are connected through bolts.
And after the concrete strength of the second layer of side span columns 10 meets the requirement, selecting a proper crawler crane 7 according to the hoisting weight and the working radius of the crane to hoist the third layer of small-span main beam 16 and the small-span secondary beam 17 in the middle area.
After the third layer of small-span main beams and the secondary beams are hoisted, the proper crawler crane 7 is selected according to the hoisting weight and the working radius of the crane to hoist the second layer of large-span beam 18 in the middle area, and one large-span beam is hoisted and placed on the column cap of the first layer of lattice column. And hoisting a third layer of large-span main beam 19 above the second layer of large-span beam, and placing the third layer of large-span main beam on the second layer of steel column caps. Then another second-layer large-span girder adjacent to the second-layer large-span girder 18 is hoisted, and then a large-span girder adjacent to the hoisted third-layer large-span girder 19 is hoisted above the second-layer large-span girder. Therefore, the hoisting of all the large-span beams of the second layer and the third layer is synchronously completed in a mode that the second layer and the third layer are circularly and alternately reciprocated. The large-span precast beam generally means a precast beam with a length of more than 20 meters, a section length of more than 1.5 meters and a self weight of more than 30 tons.
After the hoisting of the large-span beam in the middle area of the second layer and the third layer is finished, the construction of the second layer of lattice columns 13 and the outer wrapping reinforced concrete of the column caps, and the construction of the reinforcement and the concrete pouring of the beam-column joints of each layer are started.
And finally, carrying out floor slab construction in the second layer of large-span beam area and floor slab construction in the third layer of integral area.
The double-layer synchronous hoisting construction technology for the large-span precast beam in the construction of the assembly type industrial factory building, disclosed by the invention, can realize the hoisting capacity of the large-span precast beam or other components in a limited field environment quickly, accelerate the production operation efficiency of the assembly type building and has better popularization and application prospects.
Claims (7)
1. A double-layer synchronous hoisting construction method for a large-span precast beam of an assembled industrial factory building comprises the following steps:
1) constructing a first layer of lattice column, a side span column, a column cap and a beam pad;
2) hoisting all the small-span prefabricated main beams and secondary beams at the tops of the lattice columns and the side-span columns on the first layer;
3) constructing a second floor slab in the area of the small-span beam;
4) after the floor slab concrete of the second layer of small-span area meets the strength requirement, hoisting a second layer of side-span columns, and then completing concrete construction of a column body and a column cap of the side-span columns;
5) hoisting a second layer of latticed columns with steel column caps, wherein the top ends of the first layer of latticed columns are connected with the bottom ends of the second layer of latticed columns in a welding manner, and the batten plates extending out of the periphery of the first layer of latticed columns are connected by bolts;
6) after the concrete strength of the second layer of side span columns meets the requirement, hoisting a third layer of small-span prefabricated main beam and a secondary beam;
7) hoisting a second layer of large-span beam, then hoisting a third layer of large-span beam above the hoisted second layer of large-span beam, and alternately hoisting a second layer of third layer of large-span precast beam;
8) after the second layer and the third layer of large-span beams are hoisted, the outer-wrapped reinforced concrete of the second layer of lattice columns and column caps and the reinforced bars of the second layer of beam-column nodes are bound and concrete is poured;
9) and (5) carrying out floor slab construction in the second layer of large-span precast beam area and the third layer of integral area.
2. The construction method for synchronously hoisting the large-span precast beam of the fabricated industrial factory building according to the claim 1, wherein in the step 1, the lattice column is a lattice axial compression batten column, and reinforced concrete is wrapped outside the lattice axial compression batten column.
3. The double-layer synchronous hoisting construction method for the large-span precast beam of the assembly type industrial factory building according to claim 1, wherein in the step 3), before hoisting the lattice column with the steel column cap on the second layer, the operation of hoisting is performed after grouting on the ground.
4. The construction method for double-layer synchronous hoisting of the large-span precast beam of the fabricated industrial factory building according to claim 1, wherein in the step 3) and the step 9), the floor slab is a steel bar truss floor bearing plate.
5. The double-layer synchronous hoisting construction method for the large-span precast beam of the assembly type industrial factory building according to claim 1, wherein in the step 4), the side-span column with the column cap on the second layer is a reinforced concrete column, and an integral large steel mould hoisting construction process is adopted.
6. The double-layer synchronous hoisting construction method for the large-span precast beam of the assembly type industrial factory building according to claim 1, wherein in the step 7), the large-span precast beam is a precast beam with a length of more than 20 meters, a section length of more than 1.5 meters and a self weight of more than 30 tons.
7. The construction method for double-layer synchronous hoisting of the large-span precast beam of the fabricated industrial factory building according to claim 1, wherein in the step 8), reinforced concrete wrapped outside the second layer of lattice columns adopts a wood formwork square and round buckle reinforcing system, and an operation frame and an outer protection frame are erected around the reinforced concrete by using a coil buckle type scaffold; the wood formwork in the column cap area is fastened by adopting a split bolt frame square tube.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011270840.1A CN112575900A (en) | 2020-11-13 | 2020-11-13 | Double-layer synchronous hoisting construction method for large-span precast beam of assembled industrial factory building |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011270840.1A CN112575900A (en) | 2020-11-13 | 2020-11-13 | Double-layer synchronous hoisting construction method for large-span precast beam of assembled industrial factory building |
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| CN112575900A true CN112575900A (en) | 2021-03-30 |
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Citations (6)
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|---|---|---|---|---|
| CN103046645A (en) * | 2012-08-16 | 2013-04-17 | 杨众 | Large span prefabricated monolithic casting structure and construction method |
| JP2017040068A (en) * | 2015-08-19 | 2017-02-23 | 株式会社エスビーエル | Building structure, building and construction method of building |
| CN107285200A (en) * | 2017-07-05 | 2017-10-24 | 中国十七冶集团有限公司 | A kind of high large-span truss integral translation construction method for hanging |
| CN109138172A (en) * | 2018-08-31 | 2019-01-04 | 上海宝冶集团有限公司 | Wide span steel roof frame modular unit sliding method |
| CN109680799A (en) * | 2018-12-28 | 2019-04-26 | 常州市武进建筑设计院有限公司 | The frame structure bean column node of the prefabricated floor girder and board of large span band connects and hanging method |
| CN110847375A (en) * | 2019-11-11 | 2020-02-28 | 长沙理工大学 | Large-span truss construction method and large-span truss structure |
-
2020
- 2020-11-13 CN CN202011270840.1A patent/CN112575900A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103046645A (en) * | 2012-08-16 | 2013-04-17 | 杨众 | Large span prefabricated monolithic casting structure and construction method |
| JP2017040068A (en) * | 2015-08-19 | 2017-02-23 | 株式会社エスビーエル | Building structure, building and construction method of building |
| CN107285200A (en) * | 2017-07-05 | 2017-10-24 | 中国十七冶集团有限公司 | A kind of high large-span truss integral translation construction method for hanging |
| CN109138172A (en) * | 2018-08-31 | 2019-01-04 | 上海宝冶集团有限公司 | Wide span steel roof frame modular unit sliding method |
| CN109680799A (en) * | 2018-12-28 | 2019-04-26 | 常州市武进建筑设计院有限公司 | The frame structure bean column node of the prefabricated floor girder and board of large span band connects and hanging method |
| CN110847375A (en) * | 2019-11-11 | 2020-02-28 | 长沙理工大学 | Large-span truss construction method and large-span truss structure |
Non-Patent Citations (1)
| Title |
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| 杨正宏: "《装配式建筑用预制混凝土构件生产与应用技术》", 31 July 2019, 同济大学出版社, pages: 289 * |
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