CN109680930A - Early-dismantling support system construction method - Google Patents
Early-dismantling support system construction method Download PDFInfo
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- CN109680930A CN109680930A CN201710972027.0A CN201710972027A CN109680930A CN 109680930 A CN109680930 A CN 109680930A CN 201710972027 A CN201710972027 A CN 201710972027A CN 109680930 A CN109680930 A CN 109680930A
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- early
- dismantling
- upright bar
- template
- support system
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- 238000010276 construction Methods 0.000 title claims abstract description 41
- 239000004567 concrete Substances 0.000 claims abstract description 26
- 238000005266 casting Methods 0.000 claims abstract description 12
- 239000011150 reinforced concrete Substances 0.000 claims abstract description 7
- 230000000875 corresponding Effects 0.000 claims description 12
- 210000001138 Tears Anatomy 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 7
- 239000003973 paint Substances 0.000 claims description 6
- 229910000831 Steel Inorganic materials 0.000 claims description 5
- 235000021152 breakfast Nutrition 0.000 claims description 5
- 239000010959 steel Substances 0.000 claims description 5
- 238000009434 installation Methods 0.000 claims description 4
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims description 3
- 235000017491 Bambusa tulda Nutrition 0.000 claims description 3
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims description 3
- 239000011425 bamboo Substances 0.000 claims description 3
- 238000007906 compression Methods 0.000 claims description 3
- 238000009408 flooring Methods 0.000 claims description 3
- 238000011065 in-situ storage Methods 0.000 claims description 3
- 230000003447 ipsilateral Effects 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 230000003014 reinforcing Effects 0.000 claims description 3
- 238000010408 sweeping Methods 0.000 claims description 3
- 240000003917 Bambusa tulda Species 0.000 claims 1
- 210000000988 Bone and Bones Anatomy 0.000 claims 1
- 238000009415 formwork Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 241001330002 Bambuseae Species 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000000149 penetrating Effects 0.000 description 1
- 230000002035 prolonged Effects 0.000 description 1
- 230000000717 retained Effects 0.000 description 1
- 238000009416 shuttering Methods 0.000 description 1
- 230000001131 transforming Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G11/00—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs
- E04G11/36—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs for floors, ceilings, or roofs of plane or curved surfaces end formpanels for floor shutterings
- E04G11/48—Supporting structures for shutterings or frames for floors or roofs
- E04G11/486—Dropheads supporting the concrete after removal of the shuttering; Connecting means on beams specially adapted for dropheads
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G11/00—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs
- E04G11/36—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs for floors, ceilings, or roofs of plane or curved surfaces end formpanels for floor shutterings
- E04G11/38—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs for floors, ceilings, or roofs of plane or curved surfaces end formpanels for floor shutterings for plane ceilings of concrete
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G11/00—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs
- E04G11/36—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs for floors, ceilings, or roofs of plane or curved surfaces end formpanels for floor shutterings
- E04G11/48—Supporting structures for shutterings or frames for floors or roofs
- E04G11/50—Girders, beams, or the like as supporting members for forms
Abstract
A kind of early-dismantling support system construction method, characterized by the following steps: a, prefabricated several early dismantling heads, b, template configuration, c, early dismantling head, main joist, secondary joist are installed, d, roof plate template is installed, e, form bracing system and early removing system are checked and accepted, casting concrete, f, reinforced concrete floor demoulding is poured, the construction of early-dismantling support system is completed.Early-dismantling support system construction method of the invention has early dismantling head apparatus structure simple, it makes, is easy to use, early-dismantling support system construction method is simple, construction quality is safe and reliable, template usage amount can be effectively reduced, accelerate floor speed of application, work efficiency is especially pronounced in the project for needing to try to meet the deadline for the project, and the advantages of reduction engineering cost.
Description
Technical field
The present invention relates to a kind of formwork erections that building concrete pours, specifically, being a kind of early-dismantling supporter
It is construction method.
Background technique
Early-dismantling formwork system is poured for concrete, concrete steel building or structures comprising scaffold and mould
The support system of plate forms the end template of casting beams or plate by the top plate of support column and form assembly.Early-dismantling mechanism
It is arranged on the support column in early-dismantling formwork system, early-dismantling mechanism is used for shuttering supporting.One is cured in casting beams or plate
When determining degree, realizing that dismounting to template, casting beams or plate are continued to support to by the top plate of support column by Zao Chai mechanism can be complete
It is complete to remove.The template early torn open is for turning layer or transition, to shorten or duration in advance, the construction labor productivity of raising, meanwhile, it can
Template input quantity is reduced, construction cost is reduced.
Chinese patent CN102787719B discloses a kind of early-dismantling mechanism and early stripping formwork system body on January 7th, 2015
System, wherein Zao Chai mechanism includes the bottom plate top plate being located between bottom plate and top plate, and sliding sleeve is connected to bracket on pillar, under bracket
Side is equipped with supports set, the guide sleeve tube wall of bracket to be equipped with vertical guide groove by the bracket that external force can be such that it rotates；Bracket supports set
For movable ring set in the guide sleeve periphery of bracket, bracket supports the tube wall of set to be equipped with the sliding slot prolonged upwards along tube wall, sliding slot lower end
It is provided with horizontal segment；Pin shaft is traversed on pillar, the overhanging portion gap cooperation of pin shaft supports set in the guide groove and bracket of guide sleeve
Sliding slot in, pin shaft is located at sliding slot horizontal segment, and but its structure is complex, processing and manufacturing is difficult, at high cost, and installs, removes not
Just, construction efficiency is poor.
Chinese patent CN106703404A disclosed on May 24th, 2017 a kind of plank sheathing early stripping formwork system support system and
Its construction method, wherein Adjustable bracing bar includes inner bracing piece 3 and outer support bar 6, and the inner bracing piece 3 is equipped with along axis
To two rows of latchings hole 5 arranged symmetrically, every row is uniformly distributed multiple latching holes, and there is no limit for quantity；One end edge of outer support bar 6
Latching hole there are two axially and symmetrically setting；The bottom end of joint steel pipe 2 is connected and fixed from the insertion of the top of inner bracing piece 3；Inner bracing piece 3
Bottom end is inserted into from the top of outer support bar 6, and will be interior using the latching hole 5 that pin hole bolt 4 passes through inner bracing piece 3 and outer support bar 6
Support rod 3 and outer support bar 6 are connected and fixed；Aluminium alloy upright bar can be adjusted by penetrating the latching hole 5 of different inner bracing pieces 3
The height of Quick Release support system 9.But the casing of inner bracing piece 3 and outer support bar 6 makes to prop up with the structure that pin hole bolt 4 is fixed
The high low adjustment of strut is inconvenient, support construction is unstable, haves the shortcomings that safety is poor.
Therefore known early-dismantling support system there are problems that it is above-mentioned various inconvenient and.
Summary of the invention
The purpose of the present invention is to propose that a kind of early-dismantling support system using early dismantling head and strip structure support is applied
Work method.
To achieve the above object, the technical solution of the invention is as follows:
A kind of early-dismantling support system construction method, construction process: by early-dismantling layout drawing with mould → bullet control line and
Early dismantling head support anchor point → form bracing system sets up → early dismantling head is installed → and is laid with main joist, secondary joist → adjustment early dismantling head
Roof supporting in place → installation roof plate template → form bracing system examination → reinforcing bar binding → concreting → intensity reach
50%, after form removal and support system → reach design requirement intensity, remove breakfast practice → dismounting strip, feature
Be the following steps are included:
A, prefabricated several early dismantling heads
Prefabricated several early dismantling heads, early dismantling head include roof supporting, bracket, lead screw, spanner, and lead screw is up-and-down rod, up-and-down rod
Top is fixed with roof supporting, and bracket rotary moveable is erected in lead screw, and bracket is the mounting that centre penetrates lead screw, table on mounting
Face is plane, and mounting edge is equipped with stop column；
B, template configuration, comprising the following steps:
(1) template configuration is carried out according to early-dismantling floor plan, makes corresponding template；Early-dismantling region is arranged to
Perhaps square wherein arranges several wide 20cm strips being parallel to each other at the intermediate position of rectangle or square to rectangle,
The spacing of strip is≤1100mm, is marked with several early dismantling heads and its upright bar position, adjacent early dismantling head in same strip in plate
And its spacing of upright bar position is 1100mm；In several jackings of two respective side edge labellings and its upright bar of rectangle or square
The spacing of position, ipsilateral adjacent jacking and its upright bar position is 1100mm；Wherein: each early dismantling head and its upright bar position and jacking and
Its upright bar position is mutually aligned in length and breadth；
(2) control line is played on flooring, and corresponding templates early tear the early dismantling head position in floor plan open, it is fixed that early dismantling head is supported
Site is marked with red paint；
(3) bar of sweeping the floor, upright bar, vertically and horizontally horizon bar are set up according to control line, upper and lower layer supported rod erecting axial location is corresponding quasi-
Really, supported rod erecting bottom is laid with 50 × 100 × 200mm backing plate, guarantees that load uniformly transfers, backing plate answers smooth, no warpage；
C, early dismantling head, main joist, secondary joist are installed
Rod end on the early dismantling head support anchor point of label early dismantling head and its upright bar position installs early dismantling head, marks jacking
And its jacking is installed in the upright bar of upright bar position；Main joist is laid on the bracket of jacking and early dismantling head, it is vertical on main joist
It is laid with secondary joist, bracket is adjusted using the lead screw of early dismantling head and main joist, secondary joist and roof supporting is adjusted to designed elevation, prop up
It is equal with secondary joist face absolute altitude to support top elevation, makes the two times transfer of early-dismantling support system stress, ensures that roof plate template is torn open
Except rear floor is smooth；
D, roof plate template is installed
Roof plate template is installed, roof plate template is laid on secondary joist, need to be incited somebody to action according to template configuration in step b when being laid with roof plate template
Roof plate template is disconnected in early dismantling head roof supporting position, and strip is spliced, and the length of strip is identical as roof plate template, and strip is laid with
When directly in accordance with roof plate template be laid with；Roof plate template and strip pay attention to tightly, preventing concrete spillage, control early dismantling head when splicing
Roof supporting in the underface of strip, the direction of strip and the direction of main joist are consistent；When roof plate template span is greater than 4m, top
Template die plate springing height adjusts early dismantling head and its upright bar position of middle section according to 1/1000~3/1000 adjustment of span
Height, make roof plate template height to corresponding height；
E, form bracing system and early removing system are checked and accepted, casting concrete
After being installed, related technical personnel and form bracing system and early removing system are checked and accepted, if flat according to early-dismantling
Face arrangement requires specification to set up；Acceptance(check) carries out roof steel bar binding, then routinely casting concrete；
F, reinforced concrete floor demoulding is poured, comprising the following steps:
(1) in-situ reinforced concrete slab first time demoulding, intensity are determined by maintaining test block with same condition compression strength, are torn open for the first time
The mould time after concrete strength reaches 50%, removes roof plate template and the upright bar equipped with jacking, retains the upright bar that early dismantling head is housed
And strip；When removing the upright bar of early dismantling head, bracket is fallen with lead screw, removes main joist, secondary joist, then removes early tear open outside upright bar
Remaining support system finally removes the roof plate template outside strip；
(2) after concrete reaches design requirement intensity, the upright bar that early dismantling head is housed is removed；
(3) strip is removed, the construction of early-dismantling support system is completed.
Early-dismantling support system construction method of the invention can also be further achieved by the following technical measures.
Method above-mentioned, wherein in the early-dismantling region most marginal early dismantling head and its upright bar position and jacking and its
Upright bar position is 300mm with a distance from breakfast practice edge respectively.
Method above-mentioned, wherein the main joist is 100*100mm flitch.
Method above-mentioned, wherein the secondary joist is 50*100mm flitch.
Method above-mentioned, wherein when the secondary joist is flitch, roof supporting absolute altitude and secondary joist face absolute altitude low 1- downwards
2mm, to compensate the contraction that flitch generates in the construction process.
Method above-mentioned, wherein the roof plate template uses bamboo slab rubber or multi-layer board.
Method above-mentioned, wherein the same roof plate template of the material of the strip.
Method above-mentioned, wherein the casting concrete, further includes that its work progress should add no less than one group and coagulation
The test block of native cured under same condition, for examining concrete strength when first time decentering.
Method above-mentioned, wherein the early removing system upright bar must be brushed using warning paint, be listed mark.
After adopting the above technical scheme, early-dismantling support system construction method of the invention has the advantage that
1, early dismantling head apparatus structure is simple, makes, is easy to use；
2, early-dismantling support system construction method is simple, and construction quality is safe and reliable, can effectively reduce template usage amount, accelerates
Floor speed of application, work efficiency are especially pronounced in the project for needing to try to meet the deadline for the project；
3, engineering cost is reduced.
Detailed description of the invention
Fig. 1 is the early dismantling head structural schematic diagram of the embodiment of the present invention；
Fig. 2 is the early dismantling head use state diagram of the embodiment of the present invention；
Fig. 3 is the early-dismantling plan view of the embodiment of the present invention.
In figure: 1 spanner, 2 roof supportings, 3 lead screws, 4 brackets, 5 main joists, 6 secondary joists, 7 strips, 8 roof plate templates, 9 is vertical
Bar, 10 early dismantling heads and its upright bar position, 11 jackings and its upright bar position.
Specific embodiment
With reference to embodiments and its attached drawing further explains the present invention.
Embodiment 1
Early-dismantling support system construction method of the invention, construction process: by early-dismantling layout drawing with mould → bullet control
Line and early dismantling head support anchor point → form bracing system set up → early dismantling head is installed → and are laid with main joist, secondary joist → adjustment morning
Tear open roof supporting in place → installation roof plate template → form bracing system examination → reinforcing bar binding → concreting → intensity
Reach 50%, after form removal and support system → reach design requirement intensity, removes breakfast practice → dismounting strip, packet
Include following steps:
A, prefabricated several early dismantling heads
Prefabricated several early dismantling heads.It is the early dismantling head structural schematic diagram of the embodiment of the present invention referring now to Fig. 1, Fig. 1.As schemed
Show, the early dismantling head includes roof supporting 2, bracket 4, lead screw 3, spanner 1, and lead screw is up-and-down rod, and the top of up-and-down rod is fixed with
Roof supporting, bracket rotary moveable are erected in lead screw, and bracket is the mounting that centre penetrates lead screw, and mounting upper surface is plane,
Mounting edge is equipped with stop column.
B, template configuration, comprising the following steps:
(1) template configuration is carried out according to early-dismantling floor plan, makes corresponding template.Fig. 3 is the embodiment of the present invention
Early-dismantling plan view.Rectangular, long 6100mm, width 3900mm, wherein in rectangle is arranged in early-dismantling region
Intermediate position arrange several wide 20cm strips being parallel to each other, the spacing of strip is 1100mm, is marked in plate several
Early dismantling head and its upright bar position 10, the spacing of adjacent early dismantling head and its upright bar position is 1100mm in same strip；In rectangle or
Several jackings of two respective side edge labellings of person's square and its upright bar position 11, between ipsilateral adjacent jacking and its upright bar position
Away from for 1100mm；Wherein: each early dismantling head and its upright bar position and jacking and its upright bar position are mutually aligned in length and breadth.
(2) control line is played on flooring, and corresponding templates early tear the early dismantling head position in floor plan open, by early dismantling head branch
Support anchor point is marked with red paint.
(3) bar of sweeping the floor, upright bar, vertically and horizontally horizon bar are set up according to control line, upper and lower layer supported rod erecting axial location is corresponding
Accurately, supported rod erecting bottom is laid with 50 × 100 × 200mm backing plate, guarantees that load uniformly transfers, backing plate answers smooth, no warpage.
C, early dismantling head, main joist, secondary joist are installed
Fig. 2 is the early dismantling head use state diagram of the embodiment of the present invention.Morning in label early dismantling head and its upright bar position 10 tears open
Early dismantling head is installed on 9 top of upright bar on head support anchor point, is marked and is installed jacking in the upright bar of jacking and its upright bar position 11；It will
5 flitch of main joist of 100*100mm is laid on the bracket of jacking and early dismantling head, is vertically spread on the main joist 6 of 100*100mm
If the secondary joist flitch of 50*100mm, bracket is adjusted using the lead screw of early dismantling head and adjusts main joist, secondary joist and roof supporting
To designed elevation, roof supporting absolute altitude it is equal with secondary joist face absolute altitude (if keel are flitches, downward low 1-2mm, because of flitch
Contraction can be generated in the construction process), it is ensured that the two times transfer of early-dismantling device stress, floor is smooth after guaranteeing demoulding.
D, roof plate template is installed
Roof plate template 8 is installed, is laid with roof plate template on secondary joist as shown in the figure, roof plate template can use bamboo slab rubber or more
Laminate, when installation, pays attention to disconnecting template in early dismantling head roof supporting position according to early-dismantling floor plan, by 20cm's
The same roof plate template of strip 7(material, 20cm wide, length lath identical with roof plate template) splicing, directly in accordance with top plate when laying
Template is laid with, and when splicing pays attention to tight not spillage, pays attention to underface of the roof supporting in strip of early dismantling head, the side of strip
To consistent with the direction of main joist.When span is greater than 4m, roof plate template springing height according to the 1/1000~3/1000 of span,
Intermediate jacking, form height to corresponding height are adjusted, edge upright bar controls within 300mm away from metope；Early removing system
Rack rod spacing should not exceed 2m.When demoulding, upright bar should be retained and jacking bearing floor, concrete strength when demoulding press 2m
Component determines that concrete strength is not less than the 50% of design strength value.Early removing system upright bar must be brushed using warning paint, be listed
Mark.
E, form bracing system and early removing system are checked and accepted, casting concrete
After being installed, related technical personnel and form bracing system and early removing system are checked and accepted, if flat according to early-dismantling
Face layout drawing requires specification to set up；Acceptance(check) carries out roof steel bar binding, then routinely casting concrete；Support system
Configuration, should meet construction flowing water section it is reasonable have enough to meet the need, abundant requirement.
F, reinforced concrete floor demoulding is poured, comprising the following steps:
(1) in-situ reinforced concrete slab first time demoulding, intensity are determined by maintaining test block with same condition compression strength, are torn open for the first time
The mould time after concrete strength reaches 50%, removes roof plate template and the upright bar equipped with jacking, retains the upright bar that early dismantling head is housed
And strip.The first time of template removes, it should be ensured that construction loads is no more than the design bearing capacity for retaining support.When form removal,
Bracket is fallen with lead screw, removes primary and secondary skeletal frame, then removes and early tears remaining outer support system of upright bar open, finally removes the top in addition to strip
Template die plate.
(2) after concrete reaches design requirement intensity, second of dismounting of template is carried out, upright bar and early dismantling head are removed, it should be true
It is dismountable that guarantor's beam slab concrete strength reaches requirement rear.
(3) strip is removed, the construction of early-dismantling support system is completed.
The present invention has substantive distinguishing features and significant technological progress, early-dismantling support system construction method of the invention
Simply, using early dismantling head and strip structure support, secondary demoulding is carried out, template usage amount can be effectively reduced, accelerates floor construction
Speed, effect are especially pronounced in the project tried to meet the deadline for the project.
Above embodiments are used for illustrative purposes only, rather than limitation of the present invention, the technology people in relation to technical field
Member, without departing from the spirit and scope of the present invention, can also make various transformation or variation.Therefore, all equivalent
Technical solution also should belong to scope of the invention, should be limited by each claim.
Claims (9)
1. construction process: a kind of early-dismantling support system construction method matches mould → bullet control line by early-dismantling layout drawing
And early dismantling head support anchor point → form bracing system sets up that → early dismantling head is installed → is laid with main joist, secondary joist → adjustment is early torn open
Head roof supporting in place → installation roof plate template → form bracing system examination → reinforcing bar binding → concreting → intensity reach
To 50%, after form removal and support system → reach design requirement intensity, breakfast practice → dismounting strip is removed, it is special
Sign be the following steps are included:
A, prefabricated several early dismantling heads
Prefabricated several early dismantling heads, early dismantling head include roof supporting, bracket, lead screw, spanner, and lead screw is up-and-down rod, up-and-down rod
Top is fixed with roof supporting, and bracket rotary moveable is erected in lead screw, and bracket is the mounting that centre penetrates lead screw, table on mounting
Face is plane, and mounting edge is equipped with stop column；
B, template configuration, comprising the following steps:
(1) template configuration is carried out according to early-dismantling floor plan, makes corresponding template；Early-dismantling region is arranged to
Perhaps square wherein arranges several wide 20cm strips being parallel to each other at the intermediate position of rectangle or square to rectangle,
The spacing of strip is≤1100mm, is marked with several early dismantling heads and its upright bar position (10), adjacent morning in same strip in plate
The spacing for tearing head and its upright bar position open is 1100mm；Rectangle or square several jackings of two respective side edge labellings and its
The spacing of upright bar position (11), ipsilateral adjacent jacking and its upright bar position is 1100mm；Wherein: each early dismantling head and its upright bar position
It is mutually aligned in length and breadth with jacking and its upright bar position；
(2) control line is played on flooring, and corresponding templates early tear the early dismantling head position in floor plan open, it is fixed that early dismantling head is supported
Site is marked with red paint；
(3) bar of sweeping the floor, upright bar, vertically and horizontally horizon bar are set up according to control line, upper and lower layer supported rod erecting axial location is corresponding quasi-
Really, supported rod erecting bottom is laid with 50 × 100 × 200mm backing plate, guarantees that load uniformly transfers, backing plate answers smooth, no warpage；
C, early dismantling head, main joist, secondary joist are installed
Rod end on the early dismantling head support anchor point of label early dismantling head and its upright bar position (10) installs early dismantling head, label
Jacking is installed in the upright bar of jacking and its upright bar position (11)；Main joist is laid on the bracket of jacking and early dismantling head, main dragon
It is vertically laid with secondary joist on bone, adjusts bracket using the lead screw of early dismantling head and is adjusted to set by main joist, secondary joist and roof supporting
Absolute altitude is counted, roof supporting absolute altitude is equal with secondary joist face absolute altitude, makes the two times transfer of early-dismantling support system stress, ensures top
Floor is smooth after plate form removable；
D, roof plate template is installed
Roof plate template is installed, roof plate template is laid on secondary joist, need to be incited somebody to action according to template configuration in step b when being laid with roof plate template
Roof plate template is disconnected in early dismantling head roof supporting position, and strip is spliced, and the length of strip is identical as roof plate template, and strip is laid with
When directly in accordance with roof plate template be laid with；Roof plate template and strip pay attention to tightly, preventing concrete spillage, control early dismantling head when splicing
Roof supporting in the underface of strip, the direction of strip and the direction of main joist are consistent；When roof plate template span is greater than 4m, top
Template die plate springing height adjusts early dismantling head and its upright bar position of middle section according to 1/1000~3/1000 adjustment of span
Height, make roof plate template height to corresponding height；
E, form bracing system and early removing system are checked and accepted, casting concrete
After being installed, related technical personnel and form bracing system and early removing system are checked and accepted, if flat according to early-dismantling
Face arrangement requires specification to set up；Acceptance(check) carries out roof steel bar binding, then routinely casting concrete；
F, reinforced concrete floor demoulding is poured, comprising the following steps:
(1) in-situ reinforced concrete slab first time demoulding, intensity are determined by maintaining test block with same condition compression strength, are torn open for the first time
The mould time after concrete strength reaches 50%, removes roof plate template and the upright bar equipped with jacking, retains the upright bar that early dismantling head is housed
And strip；When removing the upright bar of early dismantling head, bracket is fallen with lead screw, removes main joist, secondary joist, then removes early tear open outside upright bar
Remaining support system finally removes the roof plate template outside strip；
(2) after concrete reaches design requirement intensity, the upright bar that early dismantling head is housed is removed；
(3) strip is removed, the construction of early-dismantling support system is completed.
2. early-dismantling support system construction method as described in claim 1, which is characterized in that in the early-dismantling region
Most marginal early dismantling head and its upright bar position and jacking and its upright bar position are with a distance from breakfast practice edge respectively
300mm。
3. early-dismantling support system construction method as described in claim 1, which is characterized in that the main joist is 100*
100mm flitch.
4. early-dismantling support system construction method as described in claim 1, which is characterized in that the secondary joist is 50*
100mm flitch.
5. early-dismantling support system construction method as described in claim 1, which is characterized in that the secondary joist is flitch
When, roof supporting absolute altitude and secondary joist face absolute altitude low 1-2mm downwards, to compensate the contraction that flitch generates in the construction process.
6. early-dismantling support system construction method as described in claim 1, which is characterized in that the roof plate template uses bamboo
Offset plate or multi-layer board.
7. early-dismantling support system construction method as described in claim 1, which is characterized in that the material of the strip is the same as top
Template die plate.
8. early-dismantling support system construction method as described in claim 1, which is characterized in that the casting concrete, also
The test block that no less than one group with concrete cured under same condition should be added including its work progress, for examining first time decentering
When concrete strength.
9. early-dismantling support system construction method as described in claim 1, which is characterized in that the early removing system upright bar palpus
It is brushed using warning paint, be listed mark.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710972027.0A CN109680930A (en) | 2017-10-18 | 2017-10-18 | Early-dismantling support system construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710972027.0A CN109680930A (en) | 2017-10-18 | 2017-10-18 | Early-dismantling support system construction method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109680930A true CN109680930A (en) | 2019-04-26 |
Family
ID=66183983
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710972027.0A Pending CN109680930A (en) | 2017-10-18 | 2017-10-18 | Early-dismantling support system construction method |
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| Country | Link |
|---|---|
| CN (1) | CN109680930A (en) |
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| CN110409808A (en) * | 2019-08-16 | 2019-11-05 | 中建七局(上海)有限公司 | Jacking structure, fast disassembly type late poured band support template system and its construction method |
| CN111305550A (en) * | 2020-03-30 | 2020-06-19 | 北京天润建设有限公司 | Aluminum-wood mixed template structure and construction method thereof |
| CN114263343A (en) * | 2022-01-28 | 2022-04-01 | 中建八局第二建设有限公司 | Formwork erecting method for combined building construction |
| CN114319900A (en) * | 2022-01-11 | 2022-04-12 | 四川中旺易模科技有限公司 | Quick-release clear water formwork system and construction method |
| CN114396158A (en) * | 2021-12-24 | 2022-04-26 | 北京市第三建筑工程有限公司 | Rapid graded formwork dismantling system and construction method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110409808A (en) * | 2019-08-16 | 2019-11-05 | 中建七局(上海)有限公司 | Jacking structure, fast disassembly type late poured band support template system and its construction method |
| CN111305550A (en) * | 2020-03-30 | 2020-06-19 | 北京天润建设有限公司 | Aluminum-wood mixed template structure and construction method thereof |
| CN114396158A (en) * | 2021-12-24 | 2022-04-26 | 北京市第三建筑工程有限公司 | Rapid graded formwork dismantling system and construction method |
| CN114319900A (en) * | 2022-01-11 | 2022-04-12 | 四川中旺易模科技有限公司 | Quick-release clear water formwork system and construction method |
| CN114263343A (en) * | 2022-01-28 | 2022-04-01 | 中建八局第二建设有限公司 | Formwork erecting method for combined building construction |
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Application publication date: 20190426 |