CN105908884A - Construction technology of BRT light mandrel dense rib composite floor - Google Patents
Construction technology of BRT light mandrel dense rib composite floor Download PDFInfo
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- CN105908884A CN105908884A CN201610407604.7A CN201610407604A CN105908884A CN 105908884 A CN105908884 A CN 105908884A CN 201610407604 A CN201610407604 A CN 201610407604A CN 105908884 A CN105908884 A CN 105908884A
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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
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
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- Electromagnetism (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
Abstract
The invention discloses a construction technology of a BRT light mandrel dense rib composite floor. The technology comprises the following steps of 1, template construction; 2, BRT mandrel placement; 3, steel reinforcing bar construction; 4, concrete construction. The construction technology has the advantages that the comprehensive manufacturing cost is low; the using functions are perfect, and the space interval is flexible; the heat preservation and sound insulation effects are good; design and construction are convenient, and the application range is wide.
Description
Technical field
The present invention relates to building engineering construction field, particularly relate to the construction technology of a kind of BRT Lightweight core mould close rib composite floor plate.
Background technology
BRT Lightweight core mould close rib composite floor plate system, be place by certain rule in after mould through the cavity building of casting concrete
Lid.By the interior mould in the internal embedding lightweight of floor, reach in the case of the computed altitude increasing floor, do not increase floor knot
The deadweight of structure, thus it is finally reached minimizing number of steel bars, reduce concrete amount, reduce the purpose of construction costs.From normal section
From the point of view of intensity, placing hollow box body and form cavity in cast-in-situ floor, the normal section of the plate in the horizontal, vertical direction of interior mould becomes " work "
The bearing capacity of shaped sections and the solid slab of equivalent are identical.Interior mould is provided in floor construction the cylinder for forming cavity
Core, casing and cylinder, the general name of block.Interior mould primarily serves specification and becomes the effect of hole shape, is not involved in structure stress.When
Concrete formation, after reaching design strength, the task of interior mould completes.The interior mould that this engineering method uses is BRT Lightweight core mould.
Arranging dark beam between cast-in-situ concrete columns and post, post and shear wall, the floor that dark beam surrounds uses cast-in-situ hollow floor plate structure,
Dark depth of beam is identical with cassette ceiling thickness, and dark beam is pressed wide-flat beam and considered, cassette ceiling enters generally according to unidirectional or two-way slab stress
Row internal force arrangement of reinforcement calculates.
Summary of the invention
The technical problem to be solved is: provide the construction technology of a kind of BRT Lightweight core mould close rib composite floor plate.
For solving above-mentioned technical problem, the technical solution used in the present invention is:
The construction technology of the BRT Lightweight core mould close rib composite floor plate that the present invention provides, comprises the following steps:
(1) template construction
(1) make dead load value according to width and the plane particular location of the gross thickness of superstructure, dark beam, carry out vertical and lateral stability
Calculating and plate face vertical supporting frame Punching Shear calculates design template, Os Draconis and support, BRT Lightweight core mould form bracing system uses
Thick nine clamping plate of 1830 × 915 × 18mm, wood 50 × 100mm, support and use Φ 48 × 3.5 steel pipe, wood a tree, used in making timber for boats spacing is not more than 200mm,
Surrounding and joint stickfast during template die paving nail nine laminate, Form hanger jail, strains, prevents from outwards toppling, and vertical pole's span presses 900mm
Arrange；
(2) template is as requested for arch camber 2.5%～5.0%, for not laying the BRT core superstructure of template, dark beam and side bar
Template is laid in bottom, and should stretch out 20 centimeters of template above from beam limit, it is simple to BRT core base plate avoids this portion with the overlap joint of template
The spillage of position, arch camber 3.0% and no more than 20mm in the middle of beam slab, consider at floor periphery, corner broken line when large span arch camber
Transition, arch camber amount is more slightly lower than routine, and shuttering supporting is unified absolute altitude at the bottom of pressing board and set up；For ensureing the accurate, at beam of structural elevation
Independent adjustable supports is added at the end and plate；
(2) the laying of BRT core
(1) before BRT core is winched to install floor discharge, checking its well-tended appearance situation one by one, BRT core box body breakage must not
Exceed the standard of lower defined, to the person that likely leaks into concrete materials, be both needed to carry out envelope and mend, after filling, can lay, lack
Damage severe overweight person must not use；
Repairing standard is allowed in BRT core breakage
(2) model sheetinstallat is complete, after acceptance(check), dark beam, box core, built-in pipe, hole is made unwrapping wire location；
(3) unwrapping wire is adjusted, it is ensured that between BRT core, and and dark spacing between beam, wall, post satisfied design requirement；
(4) the reserved water conduit box of BRT core superstructure is arranged in girt strip position；Can not be arranged in the embedded box in girt strip can be accordingly
BRT core and accessory are put in position, and pipeline is arranged in girt strip；
(5) box core put principle: start to additionally putting base box core by plane of arrangement figure from beam limit, as design want
Asking, BRT core and beam, the clear spacing >=10mm of wall reinforcing bar, with the clear spacing >=50mm of reserving hole；Dark beam intersects core with post
Heart position uses corresponding auxiliary products；And effective measure of anti float should be taked, use the iron wire of Φ 14 by BRT core box
Colligation is on the end muscle of girt strip or Vierendeel girder；
(6) BRT core is not conforming to installation BRT core kit or corresponding pipe accessory at modulus across limit；Beam limit uses pipe accessory
Or can not be placed BRT core accessory and solid concrete region is set and answers design configurations distributing bar；
(7) each rib limit of box core should control on same straight line；
(8) should clean up before box core is put, box core installation process should add on the bottom lumps of wood or template timber wedge leveling, and on top
It is protected by with place mat wood；
(9) box core is during installing, and is adjusted the box core damaged, qualified after can turn sequence construction, and perform hidden record；
(3) reinforcement construction
(1), after the end muscle of BRT core girt strip installs, carry out initial test, and determine that the cushion block of reinforcing bar completely can be carried out rearward
Laying the construction of BRT core, BRT core is laid complete, and rib puts reinforcing bar after adjustment is straight again；
(2) floor face reinforcing bar does not disconnects at bearing, at plate 1/4th across place's overlap joint；
(3) girt strip reinforcing bar should carry out colligation after embedded junction box positions, it is ensured that has enough concrete to protect between reinforcing bar and BRT core
Sheath；Gluten, elongated muscle and negative muscle are placed in the same plane height with minimizing beam column junction reinforcing bar, and wide-flat beam is wider than post
The process of wide situation and dark beam column cap is determined by design drawing；
(4) superstructure surfacing steel bar installs, should by existing national regulation complete reinforced bar engineering concealment acceptance qualified after can carry out coagulation
Soil pouring construction；
(4) concrete construction
(1) pump line of pump concrete sets up from wide-flat beam, if really pump line need to be set up from BRT core end face, and should be at vertically and horizontally girt strip
The concrete pump pipe underlay of infall puts damping thing to extenuate the pump line impulse force to box core；
(2) the pouring of concrete, prolongs that the longitudinal axis of BRT core is unidirectional to be carried out；The slump of concrete takes 15～18cm, and cloth with
Shock synchronization to carry out, full to ensure intercostal concrete filling, without accumulating air bag, bubble；
(3) maximum particle diameter of concrete coarse aggregate should be according to interior modular form and concreting requirement, no more than cassette ceiling rib width
1/2 and the 1/2 of plate base thickness degree, and cannot be greater than 31.5mm；
(4) during casting concrete BRT core superstructure, use small-sized insertion electromagnetic shaker to shock, electromagnetic shaker directly must not be pressed BRT core
Mould shocks；
(5) the BRT core height floor more than 450mm, concrete is poured into a mould appropriate to the occasion gradation and is carried out；Cloth height is less than core for the first time
The 3/5 of box height, treats that shock club ram-jolt carries out second time cloth again；
(6) when casting concrete, as excessive or damaged in on-the-spot BRT core deformation, use a guard measure, mixed in order to resist
The solidifying soil pressure to BRT core, is as the criterion not entering concrete in BRT core box；
(7) during concreting, special messenger to be arranged repairs adjustment box core and reinforcing bar in time with pouring operation；
The maintenance of concrete is identical with solid superstructure with form removal, uses water seasoning summer, winter Polypropylence Sheet and straw screen or mat cover
Lid insulated curing.
It addition, winter construction: winter construction hollow box mould is deposited and is preferably hidden, and when laying, should there be ice and snow foreign material surface and inside,
Otherwise must remove clean.Should not water on winter construction cast-in-situ hollow building roof case mould.Concreting covers guarantor after completing in time
Replenishing vital QI with drugs of warm nature protects.Floor is hung: hangs weight on floor and should meet design requirement.Sling point selects girt strip or floor solid section as far as possible
Position.
The method have the benefit that
1 comprehensive cost is low: after using BRT Lightweight core mould close rib composite floor plate system, it is possible to reduce reinforcing bar, total use of concrete
Amount, reduces foundation load, accelerating construction progress.
2 use perfect in shape and function, and space interval is flexible: BRT Lightweight core mould close rib composite floor plate architecture transmission force property is improved,
Superstructure the most all can carry light partition wall so that room can arbitrarily be split, thus meets owner's demand to Space with Individuality.
3 insulations, soundproof effect are good: this floor system uses closes cavity hole creating technology, it is suppressed that the up and down transmission of floor noise,
Overcome the interference of upper and lower floor noise, improve heat-proof quality simultaneously.
4 design and construction are convenient, applied widely: this Technology design is according to " cast-in-place concrete hollow building roof structure technology code "
Design, it is adaptable to large span, big load, the building of large space.
Detailed description of the invention
Embodiment 1
The construction technology of the BRT Lightweight core mould close rib composite floor plate that the present embodiment provides comprises the following steps:
(1) template construction
(1) make dead load value according to width and the plane particular location of the gross thickness of superstructure, dark beam, carry out vertical and lateral stability
Calculating and plate face vertical supporting frame Punching Shear calculates design template, Os Draconis and support, BRT Lightweight core mould form bracing system uses
Thick nine clamping plate of 1830 × 915 × 18mm, wood 50 × 100mm, support and use Φ 48 × 3.5 steel pipe, wood a tree, used in making timber for boats spacing is not more than 200mm,
Surrounding and joint stickfast during template die paving nail nine laminate, Form hanger jail, strains, prevents from outwards toppling, and vertical pole's span presses 900mm
Arrange；
(2) template is as requested for arch camber 2.5%～5.0%, for not laying the BRT core superstructure of template, dark beam and side bar
Template is laid in bottom, and should stretch out 20 centimeters of template above from beam limit, it is simple to BRT core base plate avoids this portion with the overlap joint of template
The spillage of position, arch camber 3.0% and no more than 20mm in the middle of beam slab, consider at floor periphery, corner broken line when large span arch camber
Transition, arch camber amount is more slightly lower than routine, and shuttering supporting is unified absolute altitude at the bottom of pressing board and set up；For ensureing the accurate, at beam of structural elevation
Independent adjustable supports is added at the end and plate；
(2) the laying of BRT core
(1) before BRT core is winched to install floor discharge, checking its well-tended appearance situation one by one, BRT core box body breakage must not
Exceed the standard of lower defined, to the person that likely leaks into concrete materials, be both needed to carry out envelope and mend, after filling, can lay, lack
Damage severe overweight person must not use；
Repairing standard is allowed in BRT core breakage
(2) model sheetinstallat is complete, after acceptance(check), dark beam, box core, built-in pipe, hole is made unwrapping wire location；
(3) unwrapping wire is adjusted, it is ensured that between BRT core, and and dark spacing between beam, wall, post satisfied design requirement；
(4) the reserved water conduit box of BRT core superstructure is arranged in girt strip position；Can not be arranged in the embedded box in girt strip can be accordingly
BRT core and accessory are put in position, and pipeline is arranged in girt strip；
(5) box core put principle: start to additionally putting base box core by plane of arrangement figure from beam limit, as design want
Asking, BRT core and beam, the clear spacing >=10mm of wall reinforcing bar, with the clear spacing >=50mm of reserving hole；Dark beam intersects core with post
Heart position uses corresponding auxiliary products；And effective measure of anti float should be taked, use the iron wire of Φ 14 by BRT core box
Colligation is on the end muscle of girt strip or Vierendeel girder；
(6) BRT core is not conforming to installation BRT core kit or corresponding pipe accessory at modulus across limit；Beam limit uses pipe accessory
Or can not be placed BRT core accessory and solid concrete region is set and answers design configurations distributing bar；
(7) each rib limit of box core should control on same straight line；
(8) should clean up before box core is put, box core installation process should add on the bottom lumps of wood or template timber wedge leveling, and on top
It is protected by with place mat wood；
(9) box core is during installing, and is adjusted the box core damaged, qualified after can turn sequence construction, and perform hidden record；
(3) reinforcement construction
(1), after the end muscle of BRT core girt strip installs, carry out initial test, and determine that the cushion block of reinforcing bar completely can be carried out rearward
Laying the construction of BRT core, BRT core is laid complete, and rib puts reinforcing bar after adjustment is straight again；
(2) floor face reinforcing bar does not disconnects at bearing, at plate 1/4th across place's overlap joint；
(3) girt strip reinforcing bar should carry out colligation after embedded junction box positions, it is ensured that has enough concrete to protect between reinforcing bar and BRT core
Sheath；Gluten, elongated muscle and negative muscle are placed in the same plane height with minimizing beam column junction reinforcing bar, and wide-flat beam is wider than post
The process of wide situation and dark beam column cap is determined by design drawing；
(4) superstructure surfacing steel bar installs, should by existing national regulation complete reinforced bar engineering concealment acceptance qualified after can carry out coagulation
Soil pouring construction；
(4) concrete construction
(1) pump line of pump concrete sets up from wide-flat beam, if really pump line need to be set up from BRT core end face, and should be at vertically and horizontally girt strip
The concrete pump pipe underlay of infall puts damping thing to extenuate the pump line impulse force to box core；
(2) the pouring of concrete, prolongs that the longitudinal axis of BRT core is unidirectional to be carried out；The slump of concrete takes 15～18cm, and cloth with
Shock synchronization to carry out, full to ensure intercostal concrete filling, without accumulating air bag, bubble；
(3) maximum particle diameter of concrete coarse aggregate should be according to interior modular form and concreting requirement, no more than cassette ceiling rib width
1/2 and the 1/2 of plate base thickness degree, and cannot be greater than 31.5mm；
(4) during casting concrete BRT core superstructure, use small-sized insertion electromagnetic shaker to shock, electromagnetic shaker directly must not be pressed BRT core
Mould shocks；
(5) the BRT core height floor more than 450mm, concrete is poured into a mould appropriate to the occasion gradation and is carried out；Cloth height is less than core for the first time
The 3/5 of box height, treats that shock club ram-jolt carries out second time cloth again；
(6) when casting concrete, as excessive or damaged in on-the-spot BRT core deformation, use a guard measure, mixed in order to resist
The solidifying soil pressure to BRT core, is as the criterion not entering concrete in BRT core box；
(7) during concreting, special messenger to be arranged repairs adjustment box core and reinforcing bar in time with pouring operation；
The maintenance of concrete is identical with solid superstructure with form removal, uses water seasoning summer, winter Polypropylence Sheet and straw screen or mat cover
Lid insulated curing.
It addition, winter construction: winter construction hollow box mould is deposited and is preferably hidden, and when laying, should there be ice and snow foreign material surface and inside, otherwise
Must remove clean.Should not water on winter construction cast-in-situ hollow building roof case mould.Concreting complete after in time covering and heat insulating support
Protect.Floor is hung: hangs weight on floor and should meet design requirement.Sling point selects girt strip or floor solid section position as far as possible.
Claims (1)
- The construction technology of 1.BRT Lightweight core mould close rib composite floor plate, it is characterised in that comprise the following steps:(1) template construction(1) dead load value is made according to width and the plane particular location of the gross thickness of superstructure, dark beam, carry out vertical and lateral stability calculates and plate face vertical supporting frame Punching Shear calculates design template, Os Draconis and support, BRT Lightweight core mould form bracing system uses thick nine clamping plate of 1830 × 915 × 18mm, wood 50 × 100mm, support and use Φ 48 × 3.5 steel pipe, wood a tree, used in making timber for boats spacing is not more than 200mm, surrounding and joint stickfast during template die paving nail nine laminate, Form hanger jail, straining, prevent from outwards toppling, vertical pole's span press 900mm layout；(2) template is as requested for arch camber 2.5%～5.0%, for not laying the BRT core superstructure of template, template is laid bottom dark beam and side bar, and 20 centimeters of template above should be stretched out from beam limit, it is easy to BRT core base plate and avoids arch camber 3.0% and no more than 20mm in the middle of the spillage at this position, beam slab with the overlap joint of template, consider the transition at floor periphery, corner broken line when large span arch camber, arch camber amount is more slightly lower than routine, and shuttering supporting is unified absolute altitude at the bottom of pressing board and set up；For ensureing the accurate of structural elevation, at the bottom of beam and at the bottom of plate, add independent adjustable supports；(2) the laying of BRT core(1) before BRT core is winched to install floor discharge, checking its well-tended appearance situation one by one, BRT core box body breakage must not exceed the standard of lower defined, to the person that likely leaks into concrete materials, after being both needed to carry out envelope benefit, filling, can lay, defect severe overweight person must not use；Repairing standard is allowed in BRT core breakage(2) model sheetinstallat is complete, after acceptance(check), dark beam, box core, built-in pipe, hole is made unwrapping wire location；(3) unwrapping wire is adjusted, it is ensured that between BRT core, and and dark spacing between beam, wall, post satisfied design requirement；(4) the reserved water conduit box of BRT core superstructure is arranged in girt strip position；Can not be arranged in the embedded box in girt strip and can put BRT core and accessory in relevant position, pipeline is arranged in girt strip；(5) box core put principle: start to additionally putting base box core by plane of arrangement figure from beam limit, as design is not required, BRT core and beam, the clear spacing >=10mm of wall reinforcing bar, with the clear spacing >=50mm of reserving hole；Dark beam intersects core position and uses corresponding auxiliary products with post；And should take effective measure of anti float, use the iron wire of Φ 14 by BRT core box colligation on the end muscle of girt strip or Vierendeel girder；(6) BRT core is not conforming to installation BRT core kit or corresponding pipe accessory at modulus across limit；Beam limit uses pipe accessory or can not be placed BRT core accessory and arrange solid concrete region and answer design configurations distributing bar；(7) each rib limit of box core should control on same straight line；(8) should clean up before box core is put, box core installation process should add on the bottom lumps of wood or template timber wedge leveling, and be protected by with place mat wood on top；(9) box core is during installing, and is adjusted the box core damaged, qualified after can turn sequence construction, and perform hidden record；(3) reinforcement construction(1) after the end muscle of BRT core girt strip installs, carrying out initial test, and determine that the cushion block of reinforcing bar completely can carry out laying the construction of BRT core rearward, BRT core is laid complete, and rib puts reinforcing bar after adjustment is straight again；(2) floor face reinforcing bar does not disconnects at bearing, at plate 1/4th across place's overlap joint；(3) girt strip reinforcing bar should carry out colligation after embedded junction box positions, it is ensured that has enough concrete covers between reinforcing bar and BRT core；Gluten, elongated muscle and negative muscle are placed in the same plane height with minimizing beam column junction reinforcing bar, and wide-flat beam is wider than the process of the wide situation of post and dark beam column cap and determines by design drawing；(4) superstructure surfacing steel bar installs, should by existing national regulation complete reinforced bar engineering concealment acceptance qualified after can carry out concrete pouring construction；(4) concrete construction(1) pump line of pump concrete sets up from wide-flat beam, if really need to set up pump line from BRT core end face, should put damping thing to extenuate the pump line impulse force to box core at the concrete pump pipe underlay of vertically and horizontally girt strip infall；(2) the pouring of concrete, prolongs that the longitudinal axis of BRT core is unidirectional to be carried out；The slump of concrete takes 15～18cm, and cloth is synchronization carried out with shocking, full to ensure intercostal concrete filling, without accumulating air bag, bubble；(3) maximum particle diameter of concrete coarse aggregate according to the 1/2 of interior modular form and concreting requirement, no more than cassette ceiling rib width and the 1/2 of plate base thickness degree, and should cannot be greater than 31.5mm；(4) during casting concrete BRT core superstructure, use small-sized insertion electromagnetic shaker to shock, electromagnetic shaker directly must not be pressed BRT core and shock；(5) the BRT core height floor more than 450mm, concrete is poured into a mould appropriate to the occasion gradation and is carried out；Cloth height is less than the 3/5 of core box height for the first time, treats that shock club ram-jolt carries out second time cloth again；(6) when casting concrete, as excessive or damaged in on-the-spot BRT core deformation, use a guard measure, in order to resist the concrete pressure to BRT core, be as the criterion not entering concrete in BRT core box；(7) during concreting, special messenger to be arranged repairs adjustment box core and reinforcing bar in time with pouring operation；The maintenance of concrete is identical with solid superstructure with form removal, uses water seasoning summer, winter Polypropylence Sheet and straw screen or mat carry out covering and heat insulating maintenance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610407604.7A CN105908884A (en) | 2016-06-07 | 2016-06-07 | Construction technology of BRT light mandrel dense rib composite floor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610407604.7A CN105908884A (en) | 2016-06-07 | 2016-06-07 | Construction technology of BRT light mandrel dense rib composite floor |
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| CN105908884A true CN105908884A (en) | 2016-08-31 |
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| CN201610407604.7A Pending CN105908884A (en) | 2016-06-07 | 2016-06-07 | Construction technology of BRT light mandrel dense rib composite floor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107178168A (en) * | 2017-06-16 | 2017-09-19 | 中交航局第工程有限公司 | Cast-in-place surface layer formwork support process |
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| US20090165420A1 (en) * | 2007-12-28 | 2009-07-02 | Cobiax Technologies Ag | Module for the production of concrete elements and displacement body for this |
| CN101487321A (en) * | 2008-01-17 | 2009-07-22 | 邱则有 | Concrete pore-creating core |
| CN101487318A (en) * | 2008-01-17 | 2009-07-22 | 邱则有 | Cast-in-situ concrete hollow slab |
| CN203393878U (en) * | 2013-07-29 | 2014-01-15 | 湖北弘毅建筑装饰工程有限公司 | Straight-rib honeycomb reinforced concrete composite floor slab |
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2016
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| US20090165420A1 (en) * | 2007-12-28 | 2009-07-02 | Cobiax Technologies Ag | Module for the production of concrete elements and displacement body for this |
| CN101487321A (en) * | 2008-01-17 | 2009-07-22 | 邱则有 | Concrete pore-creating core |
| CN101487318A (en) * | 2008-01-17 | 2009-07-22 | 邱则有 | Cast-in-situ concrete hollow slab |
| CN203393878U (en) * | 2013-07-29 | 2014-01-15 | 湖北弘毅建筑装饰工程有限公司 | Straight-rib honeycomb reinforced concrete composite floor slab |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107178168A (en) * | 2017-06-16 | 2017-09-19 | 中交航局第工程有限公司 | Cast-in-place surface layer formwork support process |
| CN107178168B (en) * | 2017-06-16 | 2019-03-29 | 中交一航局第一工程有限公司 | Cast-in-place surface layer formwork support process |
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Application publication date: 20160831 |