CN112796451B - Combined construction method of special-shaped steel beam structure and PC (polycarbonate) composite slab - Google Patents
Combined construction method of special-shaped steel beam structure and PC (polycarbonate) composite slab Download PDFInfo
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- CN112796451B CN112796451B CN202011623479.6A CN202011623479A CN112796451B CN 112796451 B CN112796451 B CN 112796451B CN 202011623479 A CN202011623479 A CN 202011623479A CN 112796451 B CN112796451 B CN 112796451B
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B5/00—Floors; Floor construction with regard to insulation; Connections specially adapted therefor
- E04B5/16—Load-carrying floor structures wholly or partly cast or similarly formed in situ
- E04B5/17—Floor structures partly formed in situ
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B5/00—Floors; Floor construction with regard to insulation; Connections specially adapted therefor
- E04B5/16—Load-carrying floor structures wholly or partly cast or similarly formed in situ
- E04B5/17—Floor structures partly formed in situ
- E04B5/23—Floor structures partly formed in situ with stiffening ribs or other beam-like formations wholly or partly prefabricated
- E04B5/29—Floor structures partly formed in situ with stiffening ribs or other beam-like formations wholly or partly prefabricated the prefabricated parts of the beams consisting wholly of metal
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B5/00—Floors; Floor construction with regard to insulation; Connections specially adapted therefor
- E04B5/16—Load-carrying floor structures wholly or partly cast or similarly formed in situ
- E04B5/17—Floor structures partly formed in situ
- E04B2005/173—Floor structures partly formed in situ with permanent forms for the floor edges
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- Architecture (AREA)
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- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Conveying And Assembling Of Building Elements In Situ (AREA)
Abstract
The invention relates to a construction method for combining a special-shaped steel beam structure and a PC (polycarbonate) composite slab, which comprises the following steps: dividing a floor construction area of a special-shaped steel beam structure into a prefabricated part area and a cast-in-place area; decomposing the shape of the prefabricated part area into a plurality of common prefabricated part shapes; manufacturing corresponding prefabricated parts with common specifications; placing the prefabricated parts at corresponding positions of the prefabricated part areas; connecting the prefabricated part with the steel beam on the periphery; and carrying out in-situ concrete pouring in the in-situ casting area to form the in-situ casting plate. The prefabricated parts are connected with the steel beams on the periphery through node connecting structures. The invention can realize the efficient and standardized manufacture of the steel components, improve the construction quality, reduce the rework amount and reduce the loss caused by quality problems and rework on the basis of ensuring the use function of the steel structure house.
Description
Technical Field
The invention relates to the technical field of building construction, in particular to a construction method for combining a special-shaped steel beam structure and a PC (polycarbonate) composite slab.
Background
As early as the middle of the last century, prefabricated concrete construction technology was introduced into our country. A basically complete PC technical system is formed in the eighties of the last century and is applied to various building systems, and the fields of industrial and civil-engineering facilities, various infrastructures and the like are involved. At present, in the fields of municipal engineering and the like, prefabrication technology still dominates.
At present, building industrialization, green building and building integrated information management become three important strategic directions for realizing industrial upgrading in the building industry of China. With the continuous development of industrialization policy, market and benefit driving, as an industrialized final product, the integrated construction of steel structure buildings, structures, equipment and decoration is bound to be widely used in the building market and bear greater social responsibility, and the building market is led to steadily advance towards the green and conservation-oriented direction.
The existing scheme that a PC plate designed by Rogers design institute of England is placed beside a steel beam and is directly connected with cast-in-place concrete cannot meet the requirement of domestic house earthquake-resistant design. In addition, many residential buildings in civil construction engineering are novel in design, and many steel members and prefabricated members adopt the form of special-shaped members. For the special-shaped prefabricated part, a set of templates needs to be manufactured for the prefabricated part in each shape in the prior art, so that the cost of the prefabricated part is greatly increased, the requirements on the construction sequence of a steel structure, a prefabricated concrete part and a cast-in-place concrete part are higher, and hidden dangers are brought to the quality of building products; meanwhile, the rework amount of construction is increased, and the loss caused by quality problems and rework is also greatly increased. If these problems are not solved, it is difficult to control the construction cost and quality. This is undesirable to those skilled in the art.
Disclosure of Invention
The invention aims to overcome the problems in the prior art, provides a combined construction method of a special-shaped steel beam structure and a PC (polycarbonate) composite slab, and achieves the purposes of realizing efficient and standardized manufacturing of steel members, improving construction quality, reducing rework amount and reducing loss caused by quality problems and rework on the basis of ensuring the use function of a steel structure house.
The invention provides a construction method for combining a special-shaped steel beam structure and a PC (polycarbonate) composite slab, which comprises the following steps:
the method comprises the following steps: dividing a floor construction area of a special-shaped steel beam structure into a prefabricated part area and a cast-in-place area;
step two: decomposing the shape of the prefabricated part area into a plurality of common specification prefabricated part shapes;
step three: manufacturing corresponding prefabricated parts with common specifications in the step two;
step four: placing the prefabricated parts at corresponding positions of the prefabricated part areas;
step five: connecting the prefabricated parts with the steel beams on the periphery;
step six: and carrying out in-situ concrete pouring in the in-situ casting area to form the in-situ casting plate.
Further, in the fifth step, the prefabricated parts are connected with the steel beams at the periphery through a node connection structure, and the connection structure includes: shear-resistant duck muscle, U type stirrup, cast-in-place board, floor face reinforcing bar, girder steel and floor handing-over position top flange with U type stirrup upper portion welded connection, simultaneously U type stirrup upper portion with floor face reinforcing bar ligature connects, and girder steel and floor handing-over position bottom flange welding duck muscle that shears, the duck muscle that shears with U type stirrup welded connection, U type stirrup and prefabricated component's floor bottom reinforcing bar welded connection.
Furthermore, if the joint part of the steel beam and the floor slab is short, the connecting structure further comprises a lengthened steel plate, and the upper flange of the joint part of the steel beam and the floor slab is welded with the lengthened steel plate and is lengthened to exceed the steel beam; the U-shaped stirrup is in lap joint with the growth steel plate, and the anti-shearing duck tendon is welded under the growth steel plate.
The further preferred scheme is that the material of the steel plate is the same as that of the steel beam, the thickness of the steel plate is 14mm, and the steel plate is prolonged and exceeds 900mm of the steel beam.
Furthermore, in the construction method for combining the special-shaped steel beam structure and the PC composite slab, the hoisting of the prefabricated parts is sequentially carried out according to the same type of prefabricated parts in the clockwise or anticlockwise direction; and ejecting the side line of the prefabricated component, the control line of the 200mm component, the side line of the hole and the edge line of the component by using ink lines on site according to a drawing and the control line.
Further, the construction method for combining the special-shaped steel beam structure with the PC composite slab comprises the steps that a plane layout drawing and a hoisting sequence plane drawing of the prefabricated parts are sequentially arranged on the vertical parts; hoisting and placing a gasket, and calculating the thickness of the gasket according to the measured elevation; during hoisting, the position of the component is adjusted by adopting forms of crowbars, supporting tops and the like according to the positioning line so as to ensure the accuracy of the position of the component; after the component is in place, the inclined support is immediately installed, and the lifting hook can be loosened after the screw is tightened and screwed tightly; and correcting the perpendicularity of the component by using a 2m guiding rule and adjusting and stretching out or tightening the inclined strut.
Furthermore, the construction method for combining the special-shaped steel beam structure with the PC composite slab comprises the steps of hoisting the prefabricated part away from the ground, if the top surface does not reach the level, hoisting the prefabricated part to the position of the part after the prefabricated part is leveled so as to align the steel bars and position the part; the height of the upper lifting point of the same component, such as the stair component and the wallboard component, is different, the lifting point at the lower part is pulled and lifted by a hoist, and is leveled after being lifted, and the elevation is adjusted by the hoist in a loosening and loosening way when the component is positioned.
The invention provides a construction method for combining a special-shaped steel beam structure and a PC (polycarbonate) composite slab, which has the following technical effects:
the combined construction method of the special-shaped steel beam structure and the PC composite slab, provided by the invention, gives a reasonable construction sequence of a steel structure, a precast concrete member and cast-in-place concrete of a steel structure house and a connection construction technology of a steel beam, a precast member and a cast-in-place concrete mixed structure, forms a standardized integrated construction method, improves the efficiency of the integrated construction of the steel structure house and realizes the intelligent construction of the steel structure house.
Compared with the existing scheme that a PC plate designed by Rogers design institute of England is placed beside a steel beam and is directly connected with cast-in-place concrete, the existing scheme can not meet the requirement of domestic house earthquake-resistant design. The method that the steel bar with the hole is arranged on the steel beam and penetrates through the hole and then the duck bar is welded on the steel beam and connected with the PC board is adopted, the safety of the structure is affected due to the large hole opening amount, the height of the steel beam is small, and a welder does not have an operation surface, so that the construction quality is extremely difficult to control. The invention further improves and optimizes the PC board construction process, a working surface is reserved for welding the steel bars by adopting cast-in-place connection at a distance between the PC board and the steel beam, the upper and the lower of the flange plate of the steel beam are respectively welded with a shear-resistant duck bar, then a U-shaped steel bar is welded with the duck bar, the duck bar is welded with the PC board, and finally the cast-in-place concrete is connected, so that the hole is not required to be opened on the steel beam to improve the safety of the structure, and the construction operation surface is enough to carry out welding operation.
The invention provides a method for constructing an anti-seismic node at the connecting part of a steel beam and a PC (polycarbonate) composite slab in the combined construction of a steel structure and the PC, and relates to the deepening and construction technology of a special-shaped node component. The problem of the existing extensive type production mode of steel construction processing is solved, realize high-efficient, the standardized preparation of steel member.
The construction method combining the special-shaped steel beam structure and the PC composite slab, provided by the invention, has the advantages that the influence on the environment due to the material drawing of houses surrounding a steel structure system is small, the social resource protection is facilitated, and meanwhile, the advantages of high industrialization degree, short construction period, light weight, low basic cost, easiness in manufacturing cost control, suitability for different climatic conditions and atmospheric environments and the like are realized. On the basis of guaranteeing the service function of steel construction house, ensure construction quality, can reduce the volume of doing over again, reduce because of the loss that quality problems and doing over again caused, accord with the theory that the building industrialization developed the green building.
Drawings
FIG. 1 is an optimized zoning chart of the special-shaped steel beam structure and the special-shaped steel beam structure of the PC composite slab combined construction method;
FIG. 2 is a plan view showing the arrangement of prefabricated parts in the construction method for combining the deformed steel beam structure with the PC composite slab according to the present invention;
FIG. 3 is a plan view of a cast-in-place floor slab of the construction method for combining a special-shaped steel beam structure and a PC composite slab according to the present invention;
fig. 4 is a schematic view of a joint position connection structure of a prefabricated part and a steel beam in the combined construction method of the special-shaped steel beam structure and the PC composite slab according to the present invention.
In the figure:
i, a prefabricated part area, and II, a cast-in-place area;
1: steel beam, 2: anti-shearing duck tendon, 3: increasing steel plate, 4: U-shaped stirrup and 5: cast-in-situ plate
6, floor surface steel bars, 7, floor bottom steel bars and 8, prefabricated parts.
Detailed Description
The invention is described in further detail below with reference to the figures and the specific embodiments. Advantages and features of the present invention will become apparent from the following description and from the claims. It is to be noted that the drawings are in a very simplified form and are not to precise scale, which is merely for the purpose of facilitating and distinctly claiming the embodiments of the present invention.
Examples
The construction site receives the first batch of drawings and then delivers the drawings to a PC component factory, the component factory provides a plurality of types of prefabricated components, the number of residential housing types is large, each building needs different molds to manufacture the prefabricated components, and the manufacturing cost and the construction period investment are much larger than expected.
In the embodiment, a prefabricated part drawing is deepened, and a floor slab construction area of a special-shaped steel beam structure is divided into a prefabricated part area I and a cast-in-place area II; decomposing the shape of the prefabricated part area into a plurality of shapes of the prefabricated parts with common specifications; the structural optimization division of the special-shaped steel beam is shown in figure 1. Manufacturing corresponding prefabricated parts with common specifications in a factory; placing the prefabricated parts 8 at corresponding positions of the prefabricated part area; fig. 2 is a plan view of the placement of the prefabricated parts. Connecting the prefabricated part with the peripheral steel beam 1; and (3) performing in-situ concrete pouring in the in-situ cast area to form a cast-in-situ slab 5, wherein a finished plan view of the cast-in-situ floor slab is shown in figure 3.
In order to solve the anti-seismic problem of the connecting part of the steel structure and the PC combined construction steel beam and the PC composite slab, a connecting structure is arranged at the node position of the prefabricated part and the steel beam, and a schematic diagram of the connecting structure at the node position is shown in figure 4. The prefabricated part passes through node connection structure and peripheral the girder steel is connected, connection structure includes: shear-resistant duck muscle 2, U type stirrup 4, cast-in-place board 5, floor face reinforcing bar 6, girder steel 1 with floor handing-over position top flange with 4 upper portion welded connection of U type stirrup, simultaneously 4 upper portions of U type stirrup with 6 ligature connections of floor face reinforcing bar, girder steel 1 with floor handing-over position bottom flange welding shear-resistant duck muscle 2, shear-resistant duck muscle 2 with 4 welded connection of U type stirrup, 7 welded connection of U type stirrup 4 and prefabricated component 8's floor bottom reinforcing bar. This embodiment is short if girder steel and floor handing-over position offset, further sets up and increases 3 structures of steel sheet: the upper flange of the joint part of the steel beam 1 and the floor slab is welded with an extension steel plate 3, and the extension steel plate is extended beyond the steel beam 1; u type stirrup 4 with increase 3 overlap joints of steel sheet, 3 lower welding of increase steel sheet the duck muscle 2 that shears. The 3 material of increase steel sheet is with girder steel 1, and the steel sheet is thick 14mm to the extension is and is surpassed girder steel 1900 mm.
The hoisting construction in the construction process of the embodiment has the following further requirements:
the hoisting process can be sequentially carried out in a clockwise direction or a counterclockwise direction according to the same type of components, so that the orderliness of component hoisting, safe enclosure of floors and safe operation are facilitated. And ejecting a component sideline, a 200mm component control line, a hole sideline and a component edge line by using an ink line on site according to a drawing and the control line.
Sequentially positioning the vertical members according to the plane arrangement drawing and the hoisting sequence plane drawing of the members; hoisting and placing a gasket, and calculating the thickness of the gasket according to the measured elevation; during hoisting, the position of the component is adjusted by adopting forms of crowbars, supporting tops and the like according to the positioning line so as to ensure the accuracy of the position of the component; after the component is in place, the inclined support is immediately installed, and the lifting hook can be loosened after the screw is tightened and screwed tightly; and correcting the perpendicularity of the component by using a 2m guiding rule and adjusting and stretching out or tightening the inclined strut.
When the member is lifted off the ground, if the top (surface) does not reach the level, the member is lifted to the position of the member after the level is adjusted, so that the steel bar is conveniently aligned and the member is conveniently positioned; the height of the upper lifting point of the same component, such as the stair component and the wallboard component, is different, the lifting point at the lower part is pulled and lifted by a hoist, and is leveled after being lifted, and the elevation is adjusted by the hoist in a loosening and loosening way when the component is positioned.
All elevations are counted before the beam is hoisted, and the hoisting scheme with the crossed part is arranged and constructed according to the principle that the elevation is firstly low and then high. The hoisting efficiency is fully utilized and exerted, and the hoisting period is shortened. By adopting a construction system of 'mounting the first wall and the second outer plate member', the fixing and the inspection of the connecting piece are required to be noticed, and the bolt and the outer wall member must be stably and reliably connected before unhooking.
The embodiment can reduce the engineering cost and the construction difficulty, simultaneously improve the quality control of the prefabricated part and accelerate the construction progress.
The above description is only for the purpose of describing the preferred embodiments of the present invention, and is not intended to limit the scope of the present invention, and any variations and modifications made by those skilled in the art based on the above disclosure are within the scope of the appended claims.
Claims (5)
1. The construction method for combining the special-shaped steel beam structure with the PC composite slab comprises the following steps:
the method comprises the following steps: dividing a floor construction area of a special-shaped steel beam structure into a prefabricated part area and a cast-in-place area;
step two: decomposing the shape of the prefabricated part area into a plurality of common specification prefabricated part shapes;
step three: manufacturing a corresponding prefabricated part with common specifications in the step two;
step four: -placing the prefabricated elements (8) in the corresponding positions of the prefabricated element zones;
step five: connecting the prefabricated parts with the steel beams (1) on the periphery, wherein the prefabricated parts are connected with the steel beams on the periphery through a node connection structure, and the connection structure comprises: the anti-shearing duck rib (2), the U-shaped stirrup (4), the cast-in-place plate (5) and the floor reinforcing steel bar (6); the connecting structure also comprises a growth steel plate (3), wherein the growth steel plate (3) is welded on the steel beam (1) and the upper flange of the floor slab connecting part and extends beyond the steel beam (1); the U-shaped stirrups (4) are in lap joint with the lengthening steel plates (3), and the anti-shearing duck reinforcements (2) are welded under the lengthening steel plates (3);
step six: and carrying out in-situ concrete pouring in the in-situ casting area to form the in-situ casting plate (5).
2. The method of combining a profiled steel beam structure with a PC composite slab as claimed in claim 1, wherein the steel plate 3 is made of the same material as the steel beam 1, and the steel plate is 14mm thick and extends over 900mm of the steel beam 1.
3. The construction method for combining a profiled steel beam structure with a PC composite slab as claimed in claim 1 or 2, wherein the hoisting of the prefabricated parts is performed sequentially in a clockwise or counterclockwise direction for the same type of prefabricated parts; and (4) popping the side line of the prefabricated part, the control line of the 200mm component, the side line of the hole and the edge line of the component by using ink lines on site according to a drawing and the control line.
4. The construction method for combining a profiled steel beam structure with a PC composite slab as claimed in claim 1 or 2, characterized in that the vertical members are sequentially positioned according to the plane arrangement drawing and the hoisting sequence plane drawing of the prefabricated members therein; hoisting and placing a gasket, and calculating the thickness of the gasket according to the measured elevation; during hoisting, the position of the component is adjusted in a crowbar and supporting manner according to the positioning line so as to ensure the accuracy of the position of the component; after the component is in place, the inclined support is immediately installed, and the lifting hook is loosened after the screw is tightened and screwed tightly; and correcting the verticality of the component by using a 2m guiding rule and adjusting and expanding or tightening the inclined strut.
5. The construction method of combining the beam structure of profiled steel with PC composite slab as claimed in claim 1 or 2, wherein the prefabricated components are lifted off the ground, if the top surface is not level, then lifted to the position of the components after leveling, so as to align the steel bars and position the components; the height of the lifting point on the same component of the stair and the wallboard component is different, the lifting point at the lower part is pulled and lifted by adopting a hoist, the leveling is carried out after the lifting, and the elevation is adjusted by adopting the tightness of the hoist when the component falls.
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| CN202011623479.6A CN112796451B (en) | 2020-12-31 | 2020-12-31 | Combined construction method of special-shaped steel beam structure and PC (polycarbonate) composite slab |
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| CN202011623479.6A CN112796451B (en) | 2020-12-31 | 2020-12-31 | Combined construction method of special-shaped steel beam structure and PC (polycarbonate) composite slab |
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| CN112796451B true CN112796451B (en) | 2022-09-02 |
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107327030A (en) * | 2017-08-30 | 2017-11-07 | 刘祥锦 | The plate-column structure node and its cap prefabricated components and construction method of a kind of steel column |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR101339827B1 (en) * | 2012-12-03 | 2013-12-11 | 한국건설기술연구원 | Shear connecting structure for concrete-steel girder and constructing method thereof |
| CN103397727A (en) * | 2013-08-16 | 2013-11-20 | 威海建设集团股份有限公司 | Connection structure of building steel beam and composite floor slab |
| CN105317146A (en) * | 2015-11-30 | 2016-02-10 | 黑龙江省广建工程建设有限责任公司 | Steel structure earthquake-resistant floor for construction and manufacturing method |
| CN106522441A (en) * | 2016-10-26 | 2017-03-22 | 中国二十二冶集团有限公司 | Connecting method of prefabricated composite multi-ribbed floor slabs and steel beams of assembly type steel structure house |
| CN109098338A (en) * | 2018-10-24 | 2018-12-28 | 洪成 | A kind of assembled abnormity structural system of roof and its construction method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107327030A (en) * | 2017-08-30 | 2017-11-07 | 刘祥锦 | The plate-column structure node and its cap prefabricated components and construction method of a kind of steel column |
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