CN110258886A - A kind of construction method of steel bar truss floor support plate - Google Patents
A kind of construction method of steel bar truss floor support plate Download PDFInfo
- Publication number
- CN110258886A CN110258886A CN201910590317.8A CN201910590317A CN110258886A CN 110258886 A CN110258886 A CN 110258886A CN 201910590317 A CN201910590317 A CN 201910590317A CN 110258886 A CN110258886 A CN 110258886A
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- support plate
- floor support
- girder
- steel
- steel bar
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B5/00—Floors; Floor construction with regard to insulation; Connections specially adapted therefor
- E04B5/16—Load-carrying floor structures wholly or partly cast or similarly formed in situ
- E04B5/32—Floor structures wholly cast in situ with or without form units or reinforcements
- E04B5/36—Floor structures wholly cast in situ with or without form units or reinforcements with form units as part of the floor
- E04B5/38—Floor structures wholly cast in situ with or without form units or reinforcements with form units as part of the floor with slab-shaped form units acting simultaneously as reinforcement; Form slabs with reinforcements extending laterally outside the element
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention discloses a kind of construction method of steel bar truss floor support plate, including steel bar truss floor support plate installation and steel bar truss floor support plate site operation, steel bar truss floor support plate installation includes preparation before installation, floor connection, processing at flat shape variation, the installation requirement and side mode installation requirement of steel bar girder, steel bar truss floor support plate site operation includes the bullet picture of girder and secondary beam center line, floor support plate classification designator, floor support plate handling requirement, cutting requirement, side plate connection request and concrete curing, the present invention relates to a kind of construction method of steel bar truss floor support plate, the fast advantage of speed of application with profiled sheet combination or non-combined floor, have cast-in-place overall stiffness big again, the good advantage of anti-seismic performance, floor self weight will not make board bottom concrete generate pulling force, in addition to floor is self-possessed load and Live Loads on Floors in Buildings effect under, board bottom Concrete just generates pulling force, and floor cracking postpones, and the rigidity of floor is bigger than common in-situ reinforced concrete slab.
Description
Technical field
The invention belongs to the realm of building construction, specially a kind of construction method of steel bar truss floor support plate.
Background technique
Steel bar truss floor support plate is to belong to one kind without support die mould combination floor support plate；Steel bar girder is in backstage processing space
Patterning process, traditional construction method of steel bar truss floor support plate do not use the construction work of profiled sheet combination or non-combined floor
Skill, construction efficiency is low, and cast-in-place overall stiffness is small, poor seismic behavior, needs to design a kind of steel bar truss floor support plate construction party to this
Method.
Summary of the invention:
The object of the invention is that providing a kind of construction method of steel bar truss floor support plate to solve the above-mentioned problems, solve
It has determined the problem of existing steel bar truss floor support plate construction technology construction efficiency is low, and cast-in-place overall stiffness is small, poor seismic behavior.
To solve the above-mentioned problems, the present invention provides a kind of technical solutions:
A kind of construction method of steel bar truss floor support plate, including steel bar truss floor support plate installation and steel bar truss floor support plate scene
Construction.
Preferably, the steel bar truss floor support plate is installed including preparing before installation, floor connects, at flat shape variation
Processing, steel bar girder installation requirement and side mode installation requirement；
Prepare before installation: before being laid with steel bar truss floor support plate, first by the ink of initial position shown in installation drawing
Bucket pop-up reference line, reference line use the snap the line method of combination of long drives and drop shots；
Floor connection: floor connection uses manner, and the drag hook connection between plate and plate should be close, and guarantee pours coagulation
Not spillage when native, installs first block of plate, its support vertical bar is fixed with girder steel spot welding.Other plates are successively installed again, had been laid with
One straddle of every laying will carry out proofreading by icon dimensioning in journey, if there is deviation to adjust immediately；
Processing at flat shape variation: the flat shapes such as steel column corner, Core Walls Structure corner, beam face liner connecting plate become
At change, plate both ends can be cut, unwrapping wire should be carried out before cutting to the size to be cut and check review, the plate end after cutting
Portion is still needed to according to original requirement weld horizontal support reinforcing bar and vertical support reinforcing bar；
The installation requirement of steel bar girder: steel bar girder should be parallel to girder steel end, and overlap joint of the bed die on girder steel be not small
In 30mm, along its length by galvanized steel plain sheet and girder steel spot welding, welding uses manual electric arc welding, spot pitch 300mm, reinforcing bar
Truss should ensure that zinc-plated bed die can snap on girder steel, the laying of every layer of reinforcement bar truss mould plate is suitable perpendicular to girder steel end
It is laid with from initial position to a direction, the reinforcement bar truss mould plate of corresponding each layer is laid with main structure installation sequence；
Side mode installation requirement: cheek board answers bracing wire to be straightened when installing, and utilizes reinforcing bar one end and peg spot welding after adjusting suitably,
Side mode is fixed with cheek board spot welding in one end, and the upper Ji edge spot welding spacing of side mode bottom and girder steel is 300mm.
Preferably, the steel bar truss floor support plate site operation includes bullet picture, the floor support plate of girder and secondary beam center line
Classification designator, floor support plate handling requirement, cutting requirement, side plate connection request and concrete curing；
The bullet of girder and secondary beam center line is drawn: first in the center line of bed board area pop-up girder steel, the center line of girder is to be laid with
The control line of the fixed position of floor support plate by the lap width of the center line traffic control floor support plate overlap joint girder steel of girder, and determines that building is held
The bond pad locations of plate and the welding of girder steel penetration, the center line of secondary beam will determine the welding position of penetration weld peg, and steel bar girder is flat
For row in girder steel end, overlap joint of the bed die on girder steel is not less than 30mm, along its length by galvanized steel plain sheet and girder steel spot welding, weldering
It connects using manual electric arc welding, spacing is not easy to be greater than 300mm；
Floor support plate classification designator: being cleaned out floor support plate layering and zoning by material list in windrow place, and indicates number, is distinguished
Understand floor, area, number, indicated with marking pen, and be transported to construction appointed part like clockwork；
Floor support plate handling requirement: using dedicated soft hoist cable when handling, Steel Structural Design multilayer generally uses 3 layer of one segmented column
Mounting process；
Cutting requirement: can be used the cutting of mechanical or oxygen, and when cutting selects the position of truss contact as far as possible, but must satisfy
Overlapped requires for design, and the reinforcement bar truss mould plate end after cutting is still needed to according to original requirement weld horizontal support reinforcing bar and perpendicular
To support reinforcing bar, if portion is cut off in node, web member reinforcing bar also needs to be welded on vertical reinforcement, can carry out, cut after in place
Surplus capacity should control within the scope of 5mm when unwrapping wire；
Side plate connection request: floor support plate continuously uses force saddle tongs to press with floor support plate side sheet room, first spot welding floor support plate side,
Fix two ends again, finally fixed using peg, cheek board answers bracing wire to be straightened when installing, adjust it is appropriate after using reinforcing bar one end with
Peg spot welding, one end and cheek board spot welding, side mode are fixed, the top flange spot welding spacing 300mm of cheek board bottom and girder steel；
Concrete curing: filling concrete, which is finished, closes beam body using curing cover, and inputs around automatic steam control beam body
Humidity and temperature.
The beneficial effects of the present invention are: the present invention relates to a kind of construction method of steel bar truss floor support plate, in service stage, steel
Muscle truss is exactly the arrangement of reinforcement of concrete building board, and to bear working load, therefore, it has profiled sheet combination or non-combined building
The fast advantage of the speed of application of plate, and have cast-in-place overall stiffness big, the good advantage of anti-seismic performance；
Firstly, this construction method of steel bar truss floor support plate is used into quasi- cloth steel technique, steel bar girder installs accuracy height, building
Plate strength and stiffness, that is, steel bar girder strength and stiffness, template self weight, weight concrete and construction loads are entirely by steel bar girder
It bears, what concrete knot carried out under reinforcement bar truss mould plate deformation actually, so floor self weight will not be such that board bottom concrete generates
Pulling force, in addition to floor is self-possessed load and Live Loads on Floors in Buildings effect under, board bottom concrete just generates pulling force, and floor, which cracks, to be prolonged
Late；
Secondly, this construction method of steel bar truss floor support plate is compared to traditional construction technology, emphatically for concrete layer into
The maintenance of row scientific and standard, so that the rigidity of floor is bigger than common in-situ reinforced concrete slab.
Specific embodiment:
Present embodiment uses following technical scheme:
Embodiment
A kind of construction method of steel bar truss floor support plate, including steel bar truss floor support plate installation and steel bar truss floor support plate scene
Construction.
Wherein, the steel bar truss floor support plate installation includes the place at the preceding preparation of installation, floor connection, flat shape variation
Reason, the installation requirement of steel bar girder and side mode installation requirement；
Prepare before installation: before being laid with steel bar truss floor support plate, first by the ink of initial position shown in installation drawing
Bucket pop-up reference line, reference line use the snap the line method of combination of long drives and drop shots, install according to the long line of first segment two for sighting reference line
Its support vertical bar is fixed with girder steel spot welding, then successively installs other plates by first block of plate, and every laying straddle is wanted in process of deployment
Proofread by icon dimensioning, if there is flat difference to adjust in time；
Floor connection: floor connection uses manner, and the drag hook connection between plate and plate should be close, and guarantee pours coagulation
Not spillage when native, installs first block of plate, its support vertical bar is fixed with girder steel spot welding.Other plates are successively installed again, had been laid with
One straddle of every laying will carry out proofreading by icon dimensioning in journey, if there is deviation to adjust immediately, while notice that plate-laying direction is wanted
Unanimously, panel point spacing is that 200mm-300mm pays attention to the lateral node of different templates depending on actual installation standard
It is aligned；
Processing at flat shape variation: the flat shapes such as steel column corner, Core Walls Structure corner, beam face liner connecting plate become
At change, plate both ends can be cut, unwrapping wire should be carried out before cutting to the size to be cut and check review, the plate end after cutting
Portion is still needed to according to original requirement weld horizontal support reinforcing bar and vertical support reinforcing bar, if portion is cut off in node, web member reinforcing bar
Also it needs to be welded on vertical reinforcement, can be installed after in place；
The installation requirement of steel bar girder: steel bar girder should be parallel to girder steel end, and overlap joint of the bed die on girder steel be not small
In 30mm, along its length by galvanized steel plain sheet and girder steel spot welding, welding uses manual electric arc welding, spot pitch 300mm, reinforcing bar
Truss should ensure that zinc-plated bed die can snap on girder steel, the laying of every layer of reinforcement bar truss mould plate is suitable perpendicular to girder steel end
It is laid with from initial position to a direction, the reinforcement bar truss mould plate of corresponding each layer is laid with main structure installation sequence, to
After being laid with certain area, floor support dowel, reinforcing rib and negative reinforcement etc. should be set by design requirement；
Side mode installation requirement: cheek board answers bracing wire to be straightened when installing, and utilizes reinforcing bar one end and peg spot welding after adjusting suitably,
Side mode is fixed with cheek board spot welding in one end, and the upper Ji edge spot welding spacing of side mode bottom and girder steel is 300mm.
Wherein, the steel bar truss floor support plate site operation includes girder and the bullet of secondary beam center line is drawn, floor support plate is classified
Label, floor support plate handling requirement, cutting requirement, side plate connection request and concrete curing；
The bullet of girder and secondary beam center line is drawn: first in the center line of bed board area pop-up girder steel, the center line of girder is to be laid with
The control line of the fixed position of floor support plate by the lap width of the center line traffic control floor support plate overlap joint girder steel of girder, and determines that building is held
The bond pad locations of plate and the welding of girder steel penetration, the center line of secondary beam will determine the welding position of penetration weld peg, and steel bar girder is flat
For row in girder steel end, overlap joint of the bed die on girder steel is not less than 30mm, along its length by galvanized steel plain sheet and girder steel spot welding, weldering
It connects using manual electric arc welding, spacing is not easy to be greater than 300mm, is difficult to observe the specific position of time flange of beam after being laid with because of floor support plate
It sets, therefore by the center line of secondary beam and the rebound of secondary beam flange width on the center line of girder, it should will be in secondary beam when fixed peg
Heart line and secondary beam flange width are in rebound to the floor support plate on secondary beam face；
Floor support plate classification designator: being cleaned out floor support plate layering and zoning by material list in windrow place, and indicates number, is distinguished
Understand floor, area, number, indicated with marking pen, and be transported to construction appointed part like clockwork；
Floor support plate handling requirement: using dedicated soft hoist cable when handling, to guarantee that floor support plate plate is integrally indeformable, part is not
Crimping, Steel Structural Design multilayer generally use 3 layer of one segmented column mounting process, install floor support plate when with steel structure column beam synchronize apply
Work should at least differ 3 layers, therefore can only wear between the beam column on upper layer when floor support plate handling, and playing heavy industry should be layered in beam column
Between control；
Cutting requirement: can be used the cutting of mechanical or oxygen, and when cutting selects the position of truss contact as far as possible, but must satisfy
Overlapped requires for design, and the reinforcement bar truss mould plate end after cutting is still needed to according to original requirement weld horizontal support reinforcing bar and perpendicular
To support reinforcing bar, if portion is cut off in node, web member reinforcing bar also needs to be welded on vertical reinforcement, can carry out, cut after in place
Surplus capacity should control within the scope of 5mm when unwrapping wire, and when casting concrete should take measures, mortar leakage prevention；
Side plate connection request: floor support plate continuously uses force saddle tongs to press with floor support plate side sheet room, makes to connect between monolithic floor support plate
At whole plate.First spot welding floor support plate side, then fixed two ends, are finally fixed using peg, and cheek board answers bracing wire to be straightened when installing,
Reinforcing bar one end and peg spot welding, one end and cheek board spot welding are utilized after adjusting suitably, side mode is fixed, cheek board bottom and girder steel
Top flange spot welding spacing 300mm；
Concrete curing: filling concrete, which is finished, closes beam body using curing cover, and inputs around automatic steam control beam body
Humidity and temperature input steam heating when temperature is lower, water storage moisturizing in bridge floor and case after concrete initial set, heating rate is not
More than 10 DEG C/h；Constant temperature is no more than 45 DEG C, and concrete core temperature is no more than 60 DEG C, and individual maximums must not exceed 65 DEG C, drop
Cooling rate is no more than 10 DEG C/h when warm；When the difference for being cooled to beam body temperature and environment temperature is no more than 15 DEG C, maintenance is removed
The interior room cooling of cover, box beam is slower, can suitably take venting practice, and the temperature for covering interior each position is consistent, and the temperature difference is not more than
10℃。
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Anyone skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (3)
1. a kind of construction method of steel bar truss floor support plate, which is characterized in that including steel bar truss floor support plate installation and steel bar girder
Floor support plate site operation.
2. a kind of construction method of steel bar truss floor support plate according to claim 1, it is characterised in that: the steel bar girder building
Installation requirement and side mode of the board installation including processing, steel bar girder at the preceding preparation of installation, floor connection, flat shape variation
Installation requirement；
2.1, prepare before installation: before being laid with steel bar truss floor support plate, first by the ink of initial position shown in installation drawing
Bucket pop-up reference line, reference line use the snap the line method of combination of long drives and drop shots；
2.2, floor connects: floor connection uses manner, and the drag hook connection between plate and plate should be close, and guarantee pours coagulation
Not spillage when native, installs first block of plate, its support vertical bar is fixed, then successively install other plates with girder steel spot welding, be laid with
One straddle of every laying will carry out proofreading by icon dimensioning in journey, if there is deviation to adjust immediately；
2.3, the processing at flat shape variation: the flat shapes such as steel column corner, Core Walls Structure corner, beam face liner connecting plate become
At change, plate both ends can be cut, unwrapping wire should be carried out before cutting to the size to be cut and check review, the plate end after cutting
Portion is still needed to according to original requirement weld horizontal support reinforcing bar and vertical support reinforcing bar；
2.4, the installation requirement of steel bar girder: steel bar girder should be parallel to girder steel end, and overlap joint of the bed die on girder steel be not small
In 30mm, along its length by galvanized steel plain sheet and girder steel spot welding, welding uses manual electric arc welding, spot pitch 300mm, reinforcing bar
Truss should ensure that zinc-plated bed die can snap on girder steel, the laying of every layer of reinforcement bar truss mould plate is suitable perpendicular to girder steel end
It is laid with from initial position to a direction, the reinforcement bar truss mould plate of corresponding each layer is laid with main structure installation sequence；
2.5, side mode installation requirement: cheek board answers bracing wire to be straightened when installing, and utilizes reinforcing bar one end and peg spot welding after adjusting suitably,
Side mode is fixed with cheek board spot welding in one end, and the upper Ji edge spot welding spacing of side mode bottom and girder steel is 300mm.
3. a kind of construction method of steel bar truss floor support plate according to claim 1, it is characterised in that: the steel bar girder building
Board site operation includes the bullet picture of girder and secondary beam center line, floor support plate classification designator, floor support plate handling requirement, cuts and want
It asks, side plate connection request and concrete curing；
3.1, the bullet of girder and secondary beam center line is drawn: first in the center line of bed board area pop-up girder steel, the center line of girder is to be laid with
The control line of the fixed position of floor support plate by the lap width of the center line traffic control floor support plate overlap joint girder steel of girder, and determines that building is held
The bond pad locations of plate and the welding of girder steel penetration, the center line of secondary beam will determine the welding position of penetration weld peg, and steel bar girder is flat
For row in girder steel end, overlap joint of the bed die on girder steel is not less than 30mm, along its length by galvanized steel plain sheet and girder steel spot welding, weldering
It connects using manual electric arc welding, spacing is not easy to be greater than 300mm；
3.2, floor support plate classification designator: being cleaned out floor support plate layering and zoning by material list in windrow place, and indicates number, is distinguished
Understand floor, area, number, indicated with marking pen, and be transported to construction appointed part like clockwork；
3.3, floor support plate handling requirement: using dedicated soft hoist cable when handling, Steel Structural Design multilayer generally uses 3 layer of one segmented column
Mounting process；
3.4, cutting requirement: can be used the cutting of mechanical or oxygen, and when cutting selects the position of truss contact as far as possible, but must satisfy
Overlapped requires for design, and the reinforcement bar truss mould plate end after cutting is still needed to according to original requirement weld horizontal support reinforcing bar and perpendicular
To support reinforcing bar, if portion is cut off in node, web member reinforcing bar also needs to be welded on vertical reinforcement, can carry out, cut after in place
Surplus capacity should control within the scope of 5mm when unwrapping wire；
3.5, side plate connection request: floor support plate and floor support plate side sheet room continuously use force saddle tongs to press, first spot welding floor support plate side,
Fix two ends again, finally fixed using peg, cheek board answers bracing wire to be straightened when installing, adjust it is appropriate after using reinforcing bar one end with
Peg spot welding, one end and cheek board spot welding, side mode are fixed, the top flange spot welding spacing 300mm of cheek board bottom and girder steel；
3.6, concrete curing: filling concrete, which is finished, closes beam body using curing cover, and inputs around automatic steam control beam body
Humidity and temperature.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910590317.8A CN110258886A (en) | 2019-07-02 | 2019-07-02 | A kind of construction method of steel bar truss floor support plate |
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| CN201910590317.8A CN110258886A (en) | 2019-07-02 | 2019-07-02 | A kind of construction method of steel bar truss floor support plate |
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Cited By (7)
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| CN110821159A (en) * | 2019-11-27 | 2020-02-21 | 广西建工集团第五建筑工程有限责任公司 | Steel-structure large-span adjustable floor support plate supporting structure and construction method thereof |
| CN110886419A (en) * | 2019-10-17 | 2020-03-17 | 上海宝冶冶金工程有限公司 | Steel bar truss floor support plate support and construction method |
| CN111910814A (en) * | 2020-08-18 | 2020-11-10 | 中建八局第二建设有限公司 | Construction method of steel bar truss floor bearing plate |
| CN111926975A (en) * | 2020-07-02 | 2020-11-13 | 中铁二局第三工程有限公司 | Construction method for large-cantilever steel-concrete structure combined type steel bar truss floor bearing plate |
| CN112900885A (en) * | 2021-03-16 | 2021-06-04 | 中铁二十局集团第六工程有限公司 | Installation method and storage method of steel bar truss floor support plate and steel bar truss floor support plate |
| CN114233008A (en) * | 2021-12-07 | 2022-03-25 | 宁波领辰构件有限公司 | Construction method of steel bar truss floor support plate |
| CN116752678A (en) * | 2023-06-20 | 2023-09-15 | 广东省建筑工程集团有限公司 | Pouring molding construction process for recycled aggregate blocks of inclined plates of steel bar truss floor support plates |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110886419A (en) * | 2019-10-17 | 2020-03-17 | 上海宝冶冶金工程有限公司 | Steel bar truss floor support plate support and construction method |
| CN110821159A (en) * | 2019-11-27 | 2020-02-21 | 广西建工集团第五建筑工程有限责任公司 | Steel-structure large-span adjustable floor support plate supporting structure and construction method thereof |
| CN111926975A (en) * | 2020-07-02 | 2020-11-13 | 中铁二局第三工程有限公司 | Construction method for large-cantilever steel-concrete structure combined type steel bar truss floor bearing plate |
| CN111910814A (en) * | 2020-08-18 | 2020-11-10 | 中建八局第二建设有限公司 | Construction method of steel bar truss floor bearing plate |
| CN112900885A (en) * | 2021-03-16 | 2021-06-04 | 中铁二十局集团第六工程有限公司 | Installation method and storage method of steel bar truss floor support plate and steel bar truss floor support plate |
| CN114233008A (en) * | 2021-12-07 | 2022-03-25 | 宁波领辰构件有限公司 | Construction method of steel bar truss floor support plate |
| CN116752678A (en) * | 2023-06-20 | 2023-09-15 | 广东省建筑工程集团有限公司 | Pouring molding construction process for recycled aggregate blocks of inclined plates of steel bar truss floor support plates |
| CN116752678B (en) * | 2023-06-20 | 2023-12-05 | 广东省建筑工程集团有限公司 | Pouring molding construction process for recycled aggregate blocks of inclined plates of steel bar truss floor support plates |
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Application publication date: 20190920 |