CN110359645A - Roofing cornices support system and its construction method - Google Patents
Roofing cornices support system and its construction method Download PDFInfo
- Publication number
- CN110359645A CN110359645A CN201910506984.3A CN201910506984A CN110359645A CN 110359645 A CN110359645 A CN 110359645A CN 201910506984 A CN201910506984 A CN 201910506984A CN 110359645 A CN110359645 A CN 110359645A
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- Prior art keywords
- bar
- support bracket
- boats
- tree
- triangular support
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Classifications
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
- E04D13/00—Special arrangements or devices in connection with roof coverings; Protection against birds; Roof drainage; Sky-lights
- E04D13/15—Trimming strips; Edge strips; Fascias; Expansion joints for roofs
- E04D13/155—Trimming strips; Edge strips; Fascias; Expansion joints for roofs retaining the roof sheathing
Abstract
The present invention provides a kind of roofing and cornices support system and its construction method, is related to the technical field of roofing construction equipment.The roofing support system that cornices includes triangular support bracket, main stupefied rod piece, the wooden a tree, used in making timber for boats layer and template；The vertical bar of triangular support bracket is connected to concrete structure side elevation, formwork bracing system of the triangular support bracket as top cornice structure；Main stupefied rod piece is connected to the top of the horizon bar of triangular support bracket, and the wooden a tree, used in making timber for boats layer is laid on the top of main stupefied rod piece, and template is laid on the top of the wooden a tree, used in making timber for boats layer.It solves in the prior art, the construction work amount of cross-layer brace support is big, sets up and remove arduously, and the applicable depth of building of whole outrigger support is lower, and I-steel overhangs support period long, at high cost technical problem.Triangular support bracket of the invention, which is fixed by bolts, to be formed triangle in the side elevation that concrete structure is completed and spreads out the independent support system of frame, and short construction period is small to the demand of the materials such as steel tube fastener, applied widely, does not influence subsequent construction.
Description
Technical field
The present invention relates to the technical field of roofing construction equipment, cornices and support system and its apply more particularly, to a kind of roofing
Work method.
Background technique
In the realm of building construction, roofing long cornice is structure lines indispensable in Neo Chinese style building, for large span
Roofing cornices, and traditional form of construction work mainly has: the support of cross-layer brace, whole outrigger support and I-steel overhanging support.
It is above-mentioned that by the way of the support of cross-layer brace, construction technical requirement is low in the prior art, still, the engineering of construction
Amount is big, and setting up and removing for support frame is relatively elaborate, and materials demand amount is big, causes at high cost.The side supported using whole outrigger
Formula, work progress is simple, and Technical comparing is mature, still, is merely capable of the building suitable for one to two layer height, whole height is not
Building more than eight meters is more than eight meters of building for whole height, just very not applicable.Using the side of I-steel overhanging support
The technics comparing of formula, construction is simple, the technology maturation of construction, still, is also only suitable for of length no more than 1.5 meters of the knot of bridging piece
Structure, and the demand of I-steel is big, and long construction period is at high cost, meanwhile, also inconvenience is brought to subsequent construction.
Summary of the invention
It cornices support system the purpose of the present invention is to provide a kind of roofing, cross-layer existing in the prior art to solve
The construction work amount of brace support is big, sets up and remove arduously, and the applicable depth of building of whole outrigger support is lower, I-steel
Overhanging supports period long, at high cost technical problem.
A kind of roofing provided by the invention cornices support system, including triangular support bracket, main stupefied rod piece, the wooden a tree, used in making timber for boats layer and mould
Plate；
The vertical bar of triangular support bracket is connected to concrete structure side elevation, and triangular support bracket is as top cornice structure
Formwork bracing system；
Main stupefied rod piece is connected to the top of the horizon bar of triangular support bracket, and the wooden a tree, used in making timber for boats layer is laid on the top of main stupefied rod piece, mould
Plate is laid on the top of the wooden a tree, used in making timber for boats layer.
Further, it between vertical bar and concrete structure, is from top to bottom successively tethered using through-wall bolt, expanding screw
It connects.
Further, the first fixing pipe and the second fixing pipe are vertically welded on horizon bar, on the brace of triangular support bracket
It is vertically welded with third fixing pipe；
First fixing pipe, the second fixing pipe, third fixing pipe pass through first level support rod, second horizontally-supported respectively
Bar, third horizontal support bar are connected to and cornice on outrigger；
It is connected between second horizontal support bar and third horizontal support bar by the 4th horizontal support bar.
Further, it is connected between horizon bar and brace by the first web member,
The point of intersection of horizon bar and vertical bar is connect between brace by the second web member.
Further, the weighted base for further including hound and being connected in shear wall；
The brace of the upper end connection triangular support bracket of hound, the lower end of hound connects weighted base.
It further, further include external corner tripod；
The vertical section of external corner tripod is connected on shear wall, and the reinforcing bar of vertical welding is logical on the horizontal segment of external corner tripod
It crosses steel pipe and is connected to and cornice on outrigger.
Further, the wooden a tree, used in making timber for boats layer includes the wooden a tree, used in making timber for boats, the quantity of the wooden a tree, used in making timber for boats be it is multiple, the distance between neighboring trees a tree, used in making timber for boats range exists
Between 190mm-210mm；
The sectional dimension * length value of the wooden a tree, used in making timber for boats is 90mm*40mm*2000mm.
Further, the Thickness range of template is between 10mm-15mm.
It cornices the construction method of support system, includes the following steps: the present invention also provides a kind of roofing
(a) pre-buried tripod screw rod hole to be provided
PVC30 casing penetrates the side for the outrigger that cornices, pre-buried PVC30 casing, to form the hole to be provided of firm screw rod；
Turned over inside and outside beam in roofing, a C12 reinforcing bar is respectively added in casing two sides, C12 reinforcing bar first with tied silk binding with
On beam stirrup, after service sleeve leveling, beam stirrup is welded, the both ends reinforcement of weld at least two of each service sleeve welds
Point；
Using logical line leveling is drawn when service sleeve is pre-buried, when drawing logical line, prolongs logical line length and one horizontal mark is set every 5 meters
High control point, it is ensured that when sleeve pipe pre-embedding in same elevation line；
(b) in roofing reversed beam casting concrete
The at the uniform velocity casting concrete on roofing reversed beam, is arranged construction joint cornicing, to reversed beam concrete construction circle on outrigger
After the hardening of face, sealing rod is installed；
Water seasoning is carried out on the surface of concrete, curing time at least 14 days, reaches the intensity of reversed beam concrete
20MPa；
(c) installation adjusts and sets triangular support bracket
The vertical bar of triangular support bracket is fixed on the concrete structure below that cornices using through-wall bolt, expansion bolt
It is interior, the verticality of triangular support bracket is adjusted, after tightening through-wall bolt, expansion bolt respectively, adjusts hanging down for triangular support bracket again
Straight degree, then installs the lower anchor slab expansion bolt of triangular support bracket；
(d) three horizontal support bars are installed
Using first level support rod, the second horizontal support bar, third horizontal support bar respectively to the first fixing pipe, second
Fixing pipe, third fixing pipe position be fixed；
(e) the main stupefied rod piece of installation
The inner end of main stupefied rod piece is connected to the horizon bar inner end of triangular support bracket, first level support rod, the second water
Flat support rod is respectively fixed the position of the stupefied rod piece of master；
The upper end of 4th horizontal support bar connects the second horizontal support bar, and the lower end of the 4th horizontal support bar connects third water
Flat support rod；
When the stupefied rod piece of master encounters shear wall, weighted base is installed in shear wall side elevation, the upper end of hound is connected to
On brace, the lower end of hound connects weighted base；
(f) the wooden a tree, used in making timber for boats layer, template are installed
It is laid with the wooden a tree, used in making timber for boats layer on the stupefied rod piece of master, is laid with template above the wooden a tree, used in making timber for boats layer；
(g) assembling reinforcement
According to construction drawing, the reinforcing bar for the beam slab that cornices is installed；
(h) casting concrete
Uniform casting concrete from the inside to the outside, and pour and put outward from the position of the anchor point close to triangular support bracket
Material；
(i) curing concrete
The surface of concrete is conserved, curing time at least 14 days；
(j) triangular support bracket is removed
It checks whether the intensity of entire support system reaches 100%, after reaching, first tears the template of not load-bearing open, then tear load-bearing open
Template, remove the lateral support of triangular support bracket, remove the vertical supporting of triangular support bracket.
Further, in above-mentioned steps, when encountering the position of corner, external corner tripod is installed on shear wall.
A kind of roofing provided by the invention cornices support system, and the vertical bar connection concrete structure of triangular support bracket is edge-on
Face is supported fixation using vertical direction of the vertical bar to triangular support bracket, triangular support bracket is enable to cornice as top
The formwork bracing system of structure；Main stupefied rod piece is connected to the top of the horizon bar of triangular support bracket, and the wooden a tree, used in making timber for boats layer is laid on main stupefied bar
The top of part is supported fixation using top position of the wooden a tree, used in making timber for boats layer to the stupefied rod piece of master；Template is laid on the top of the wooden a tree, used in making timber for boats layer, benefit
Fixation is supported to the wooden a tree, used in making timber for boats layer with template；Triangular support bracket of the invention be fashioned iron weld tripod, be fixed by bolts in
Concrete structure side elevation forms triangle and spreads out the independent support system of frame, and short construction period, construction technology is simple, buckles steel pipe
The demand of the materials such as part is small, applied widely, does not influence subsequent construction.
It cornices the construction method of support system the present invention also provides a kind of roofing, it is successively reserved using pre-buried tripod screw rod
Hole, in roofing reversed beam casting concrete, installation adjusts and sets triangular support bracket, installs three horizontal support bars, the main stupefied rod piece of installation, peace
The wooden a tree, used in making timber for boats layer of dress, template, assembling reinforcement, casting concrete, curing concrete, dismounting triangular support bracket and etc., work progress letter
Single, short construction period reduces construction cost.
Detailed description of the invention
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior art
Embodiment or attached drawing needed to be used in the description of the prior art be briefly described, it should be apparent that, it is described below
Attached drawing is some embodiments of the present invention, for those of ordinary skill in the art, before not making the creative labor
It puts, is also possible to obtain other drawings based on these drawings.
Fig. 1 sets up figure for the outrigger provided in an embodiment of the present invention that cornices；
Fig. 2 is finished product triangular support bracket drawing provided in an embodiment of the present invention；
Fig. 3 is that roof support system provided in an embodiment of the present invention completes elevation；
Fig. 4 is that triangular support bracket provided in an embodiment of the present invention welds drawing；
Fig. 5 is external corner tripod drawing provided in an embodiment of the present invention；
Fig. 6 is eaves construction joint indwelling figure provided in an embodiment of the present invention；
Fig. 7 is that water expandable waterstop provided in an embodiment of the present invention installs node diagram one；
Fig. 8 is that water expandable waterstop provided in an embodiment of the present invention installs node diagram two；
Fig. 9 is that triangular support bracket provided in an embodiment of the present invention connect drawing with cornicing；
Figure 10 is the portion the A enlarged drawing in Fig. 9；
Figure 11 is the drawing after connection triangular support bracket and external corner tripod provided in an embodiment of the present invention；
Figure 12 is that provided in an embodiment of the present invention cornice sets up relationship section between outrigger and triangular support bracket, hound
Figure；
Figure 13 is the partial structural diagram of weighted base provided in an embodiment of the present invention.
Icon: 100- triangular support bracket；The stupefied rod piece of 200- master；300- wood a tree, used in making timber for boats layer；400- template；500- hound；600-
Weighted base；700- external corner tripod；101- vertical bar；102- horizon bar；103- through-wall bolt；104- expansion bolt；105-
First fixing pipe；The second fixing pipe of 106-；107- brace；108- third fixing pipe；109- first level support rod；110- second
Horizontal support bar；111- third horizontal support bar；The 4th horizontal support bar of 112-；The first web member of 113-；The second web member of 114-；
301- wood a tree, used in making timber for boats；701- vertical section；702- horizontal segment；703- reinforcing bar；704- steel pipe.
Specific embodiment
Technical solution of the present invention is clearly and completely described below in conjunction with attached drawing, it is clear that described implementation
Example is a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill
Personnel's every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", "vertical",
The orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" be based on the orientation or positional relationship shown in the drawings, merely to
Convenient for description the present invention and simplify description, rather than the device or element of indication or suggestion meaning must have a particular orientation,
It is constructed and operated in a specific orientation, therefore is not considered as limiting the invention.In addition, term " first ", " second ",
" third " is used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, can also can be indirectly connected through an intermediary
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in invention.
As shown in figure 1-9, a kind of roofing provided by the invention cornices support system, including triangular support bracket 100, master are stupefied
Rod piece 200, the wooden a tree, used in making timber for boats layer 300 and template 400；
The vertical bar 101 of triangular support bracket 100 is connected to concrete structure side elevation, and triangular support bracket 100 is used as top
The formwork bracing system of cornice structure；
Main stupefied rod piece 200 is connected to the top of the horizon bar 102 of triangular support bracket 100, and the wooden a tree, used in making timber for boats layer 300 is laid on main stupefied bar
The top of part 200, template 400 are laid on the top of the wooden a tree, used in making timber for boats layer 300.
Triangular support bracket 100 of the invention is bolted to concrete knot using the structure of fashioned iron welding tripod
Structure side elevation connects tripod using steel tube fastener, is spread out the independent support system of frame with forming triangle.Entire triangular support bracket
100 construction period is 45 days or so, and including 28 days curing cycles of concrete, construction technology is compared to traditional approach letter
It is single, it is small to the demand of the materials such as steel tube fastener much and applied widely in work progress, it will not influence subsequent
Construction, overcome the problems of the prior art well.
Further, between vertical bar 101 and concrete structure, through-wall bolt 103, expanding screw are from top to bottom successively used
Bolt 104 connects.
Through-wall bolt 103 using M28 bolt, expansion bolt 104 using M12 bolt, with using through-wall bolt 103,
The position of vertical bar 101 is fixed in expansion bolt 104.
Further, the first fixing pipe 105 and the second fixing pipe 106, triangular support bracket are vertically welded on horizon bar 102
Third fixing pipe 108 is vertically welded on 100 brace 107；
First fixing pipe 105, the second fixing pipe 106, third fixing pipe 108 pass through first level support rod 109, the respectively
Two horizontal support bars 110, third horizontal support bar 111 are connected to and cornice on outrigger；
It is connected between second horizontal support bar 110 and third horizontal support bar 111 by the 4th horizontal support bar 112.
In the present embodiment, horizon bar 102, vertical bar 101 and brace 107 are all made of round steel pipe, the first fixing pipe 105,
Second fixing pipe 106, third fixing pipe 108 also use round steel pipe, are connected between steel pipe using fastener.
First level support rod 109 is laid on horizon bar 102, and first level support rod 109 is then welded on first
In fixing pipe 105；Second horizontal support bar 110 is laid on horizon bar 102, is then welded on the second horizontal support bar 110
In second fixing pipe 106；Third horizontal support bar 111 is laid on the outside of brace 107, then by third horizontal support bar 111
It is welded in third fixing pipe 108.
The upper end of 4th horizontal support bar 112 is welded on the second horizontal support bar 110, the 4th horizontal support bar 112
Lower end is welded on third horizontal support bar 111.
Further, it is connected between horizon bar 102 and brace 107 by the first web member 113,
The point of intersection of horizon bar 102 and vertical bar 101 is connect between brace 107 by the second web member 114.
First web member 113, the second web member 114 are all made of square steel tube, and square steel tube can be improved entire triangular support bracket 100
Internal stress.
Further, the weighted base 600 for further including hound 500 and being connected in shear wall；
The upper end of hound 500 is welded to connect the brace 107 of triangular support bracket 100, and the lower end of hound 500 connects stress
Pedestal 600.
Weighted base 600 uses the 10# channel steel of 500mm thickness, and it is interior to use M12 expansion bolt to be fixed in shear wall.
It further, further include external corner tripod 700；
The vertical section 701 of external corner tripod 700 is connected on shear wall, vertical on the horizontal segment 702 of external corner tripod 700
The reinforcing bar 703 of welding is connected to by steel pipe 704 and is corniced on outrigger.
Vertical section 701 is fixed on shear wall using through-wall bolt, expansion bolt.
Through-wall bolt uses the bolt of M28, and expansion bolt uses the bolt of M12.
There are two reinforcing bars 703, two reinforcing bars 703 to be arranged in parallel for vertical welding on horizontal segment 702, each reinforcing bar 703
Outside is socketed with a steel pipe 704, and the lower end of each steel pipe 704 is welded on horizontal segment 702, the upper end of each steel pipe 704
It is both connected to and cornices on outrigger.
Entire external corner tripod 700 is using the structure of round steel pipe, and the outside of two reinforcing bars 703 is using the knot for being socketed round steel pipe
Structure improves whole stress.
Further, the wooden a tree, used in making timber for boats layer 300 includes the wooden a tree, used in making timber for boats 301, the quantity of the wooden a tree, used in making timber for boats 301 be it is multiple, between neighboring trees a tree, used in making timber for boats 301 away from
From range between 190mm-210mm；
The sectional dimension * length value of the wooden a tree, used in making timber for boats 301 is 90mm*40mm*2000mm.
In the present embodiment, the distance between neighboring trees a tree, used in making timber for boats 301 value is 200mm.
Further, the Thickness range of template 400 is between 10mm-15mm.
In an embodiment of the present invention, the Thickness of template 400 is 12mm.
It cornices the construction method of support system, includes the following steps: the present invention also provides a kind of roofing
As shown in Figure 1, the top layer's horizon bar and cross bar for the outrigger that cornices are chosen with roofing to guarantee having enough operating spaces
The distance between eaves board needs to control between 1500mm-1800mm.
Outermost eaves are 100mm apart from single protective frame and the distance between the collar extension that cornices, and height needs to protect
Card is 1500mm higher than eaves, and the outrigger wall-connecting piece that cornices carries out two steps two across setting.
As shown in Fig. 2, Fig. 3, Fig. 4, Fig. 5, triangular support bracket 100 leads to welding production using the steel side Q235, and vertical bar 101 is adopted
Logical with the steel side Q235 of 80*60*4mm, the steel side Q235 that horizon bar 102, brace 107 are all made of 50*50*4mm is logical, the first web member
113, the second web member 114 be all made of 40*40*3mm the steel side Q235 it is logical, tripod at external corner, as shown in figure 5, using I-steel+
Channel steel welding production, lateral stressed bar use the Q235 anchor slab of 10# I-steel+8mm thickness, and vertical bar and brace use 10# channel steel.
When welding, using the welding rod of the carbon steel structure of E43 series, groove arc welding, in Fig. 4, all weld seams are four sides
It is fully welded, weld seam 6mm, weld seam grade is three-level.
The welding process requirement of triangular support bracket 100 is as follows:
Cleaning weld bond: check whether groove, assembly clearance meet the requirements before weldering, whether tack welding is secured, around weld seam not
Must there are greasy dirt, rust object.
Striking: fillet weld acnode of rising and falling should not should at will beat arc in end of welding bead, preferably greater than 10mm, answer after striking of striking sparks
Welding rod is pulled open from weld metal zone immediately, makes to keep the gap 2-4mm to generate electric arc between welding rod and component.Butt weld connects in time and angle
Composite welds is connect, sets run-on tab and end tab at weld seam both ends, it is necessary to be soldered to weld metal zone after striking again on run-on tab, connect halfway
Head should then strike sparks striking at 15-20mm in front of welding line joint, and welding rod is returned to weld seam section start again after weldment is preheated,
It, can welding forward after molten bath is filled up to the thickness of requirement.
Speed of welding: it is required that constant speed is welded, guaranteeing that throat depth, even width are consistent, from seeing molten iron in molten bath in mask
Keeping equidistant with slag is advisable, and the distance controlling is in 2-3mm.
Soldering angle: welding rod and the angle for welding direction of advance are 60 ° -75 °；
Receive arc: every weld seam is soldered to end, and after should filling up arc crater, the direction band arc opposite toward welding direction makes arc crater
It gets rid of inside welding bead, stings meat to prevent arc crater.Welding finishes, and Ying Caiyong gas cutting cuts off arc plate, and reconditioning is smooth, hammering not allowable
It falls.
Scarfing cinder: whole weld seam removes slag after being soldered, through welder's self-test, including appearance and weld size etc., true no problem
Afterwards, can transfer location continue to weld.
(a) pre-buried tripod screw rod hole to be provided
PVC30 casing penetrates the side for the outrigger that cornices, pre-buried PVC30 casing, to form the hole to be provided of firm screw rod；
It is arranged according to the spacing of triangular support bracket 100, spacing≤1500mm；Beam need to be avoided when meeting overhanging Cantilever Beams,
Apart from each pre-buried PVC30 casing of beam two sides 250mm.
Turned over inside and outside beam in roofing, a C12 reinforcing bar is respectively added in casing two sides, C12 reinforcing bar first with tied silk binding with
On beam stirrup, after service sleeve leveling, beam stirrup is welded, the both ends reinforcement of weld at least two of each service sleeve welds
Point, the reinforcing for fixed sleeving and tripod stress point；
Using logical line leveling is drawn when service sleeve is pre-buried, when drawing logical line, prolongs logical line length and one horizontal mark is set every 5 meters
High control point, it is ensured that when sleeve pipe pre-embedding in same elevation line；
(b) in roofing reversed beam casting concrete
At the uniform velocity casting concrete is arranged on outrigger for the stress for guaranteeing triangular support bracket 100 cornicing on roofing reversed beam
Construction joint, cornice structure construction is divided into constructs twice, and the indwelling of construction joint is as shown in fig. 6, the position of the x1 meaning in Fig. 6 is to apply
Work seam.
After the hardening of reversed beam concrete construction interface, cleaning dross, dust, sundries etc. expose rigid base.
Sealing rod is installed, to make sealing rod fixation, horizontal joint is fixed every 400mm with cement steel nail, and sealing rod is taken
Spreading degree is no less than 100mm；
As shown in fig. 7, the position x2 is beam center line, the position x3 is water expandable waterstop, and the position x4 is cement steel nail, x5
Position is to pick prosposition to set, and the position x6 is dabbing position.
As shown in figure 8, structural schematic diagram when being installed for water expandable waterstop；
After the completion of reversed beam concreting, water seasoning is carried out on the surface of concrete, curing time at least 14 days, is made anti-
The intensity of beam concrete reaches 20MPa, then installs triangular support bracket 100.
(c) installation adjusts and sets triangular support bracket
The vertical bar 101 of triangular support bracket 100 is fixed on using through-wall bolt 103, expansion bolt 104 cornice it is below
In concrete structure, the verticality of triangular support bracket 100 is adjusted, after tightening through-wall bolt 103, expansion bolt 104 respectively, again
The verticality of triangular support bracket 100 is adjusted, then the lower anchor slab expansion bolt of triangular support bracket 100 is installed；
When triangular support bracket 100 is installed, it is necessary to keep vertical vertical, vertical angle is not greater than 3 °.
If 104 anchor bar of expansion bolt can not aperture when, expansion bolt 104 can be fixed on outside anchor slab fixed
Afterwards, it is welded in anchor slab.
As shown in Fig. 9, Figure 10, Figure 11, triangular support bracket 100 is connected by screw bolts in structure, and joint steel pipe is using straight
The connection of angle fastener.
(d) three horizontal support bars are installed
As shown in Fig. 2, the horizontal support bar for connecting triangular support bracket 100 shares three, respectively first level branch
Strut 109, the second horizontal support bar 110, third horizontal support bar 111 when horizontal support bar is installed, first install third level branch
Strut 111, then the second horizontal support bar 110, first level support rod 109 are installed, all horizontal support bars use right-angle coupler
Be connected on the short steel pipes of tripod welding, between tripod in point be arranged parallel to the horizon bar 102 and the first water of tripod
Flat support rod 109, the second horizontal support bar 110 are connected.
It is fixed using position of the first level support rod 109 to the first fixing pipe 105, the second horizontal support bar 110
The position of second fixing pipe 106 is fixed, the position of third fixing pipe 108 is fixed in third horizontal support bar 111,
First level support rod 109, the second horizontal support bar 110, third horizontal support bar 111 are all made of right-angle coupler and are connected to triangle
On the short steel pipes of support frame 100；
Three horizontal support bars make the structure of 100 1 entirety of triangular support bracket.
(e) the main stupefied rod piece of installation
The inner end of main stupefied rod piece 200 is connected to 102 inner end of horizon bar of triangular support bracket 100, first level support
Bar 109, the second horizontal support bar 110 are respectively fixed the position of the stupefied rod piece of master 200；Utilize 200 pairs of the stupefied rod piece of the master wooden a tree, used in making timber for boats
The position of layer 300 is supported fixation.
The upper end of 4th horizontal support bar 112 connects the second horizontal support bar 110, the lower end of the 4th horizontal support bar 112
Third horizontal support bar 111 is connected, using the 4th horizontal support bar 112 to the second horizontal support bar 110, third horizontal support bar
Position between 111 is fixed.
Triangular support bracket 100 is locked on diagonal brace steel pipe to next layer of beam using fastener, one, lock below diagonal brace steel pipe
Longitudinal steel pipe, and guarantee that the same side tripod-shaped is integral；
As shown in figure 12, triangular support bracket 100 must not be connected with outrigger.
Further, it in step (e), as shown in figure 13, when the stupefied rod piece 200 of master encounters shear wall, needs shearing
Wall side elevation installs weighted base 600, and the upper end of hound 500 connects triangular support bracket 100, hound using welding manner
500 lower end connects weighted base 600 using welding manner.
(f) the wooden a tree, used in making timber for boats layer, template are installed
After triangular support bracket 100 is installed, the wooden a tree, used in making timber for boats layer 300, the section ruler of the wooden a tree, used in making timber for boats 301 are laid on the stupefied rod piece 200 of master
Very little * length value is 90mm*40mm*2000mm,
The wooden a tree, used in making timber for boats 301 is laid with perpendicular to 100 direction of triangular support bracket, spacing 200mm.The effect of the wooden a tree, used in making timber for boats 301 is to make template
400 stress equalizations will not bend.
After the completion of the wooden a tree, used in making timber for boats 301 is laid with, template 400 is laid with above the wooden a tree, used in making timber for boats layer 300, the Thickness of template 400 is 12mm.
When template 400 is laid with, longitudinal direction is parallel to 100 direction of triangular support bracket, and template 400 ensure that piece is tight, and slit width must not
Greater than 2mm.
(g) assembling reinforcement
After the completion of triangular support bracket 100 and template 400 install, according to construction drawing, the reinforcing bar for the beam slab that cornices is installed；
When reinforcement installation, reinforcing bar should be avoided and concentrate and stack, lead to Load concentration.
(h) casting concrete
When concreting, according to sequence of construction from the inside to the outside, uniform casting concrete, and from close to triangular support bracket
The position of 100 anchor point pours blowing outward；
It when concreting, answers and vibrates when pouring, control dispensing speed, avoiding concrete, onboard thickness is more than
250mm。
(i) curing concrete
After the completion of concreting, by the way of watering, the surface of concrete is conserved, curing time at least 14
It, in the present embodiment, curing time is 15 days；
(j) triangular support bracket is removed
Belong to Long-span Cantilever structure due to cornicing, support system need to can after concrete reaches 100% intensity
It removes, the sequence that template 400 is removed should follow first to prop up tears open afterwards, and rear branch is first torn open.
It checks whether the intensity of entire support system reaches 100%, after reaching, first tears the template 400 of not load-bearing open, then tear open and hold
The template 400 of weight first removes the lateral support of triangular support bracket 100 from top to bottom, removes the vertical branch of triangular support bracket 100
Support.
Further, in above-mentioned steps f, when encountering the position of corner, external corner tripod is installed on shear wall
700。
The vertical section 701 of external corner tripod 700 is successively connected on shear wall using through-wall bolt, expansion bolt, external corner
There are two reinforcing bars 703, two reinforcing bars 703 to be arranged in parallel for vertical welding on the horizontal segment 702 of tripod 700, and each reinforcing bar 703 is
It is socketed a steel pipe 704, each steel pipe 704, which is both connected to, to cornice on outrigger.
During entire construction, it to be also monitored monitoring:
For the safety and firmness for guaranteeing support system, meet construction usage requirement, avoids the sedimentation for occurring to exceed code requirement
And cave-in accident occurs, and must carry out effective settlement observation to frame body, be adjusted reinforcing in time, it should be noted that the following:
(1) horizontal displacement for settling flexing and frame body to triangular support bracket 100 carries out emphasis monitoring.
(2) monitoring scheme arranges 10 monitoring points by every building, and 1 checkpoint is arranged in about 15m spacing, and each vertex angle part must
It must one point of setting.
(3) monitoring zero point must be set before concrete, and is arranged surveyor special messenger to be responsible for protecting monitoring point and supervised
It surveys, load front and back pays attention to and records sinking data.As notice Project Technical responsible person and frame body designer, and stop loading,
After analyzing sunken plaza, it can be reloaded after taking effective strengthening measure.
(4) after the completion of frame body is set up, it is necessary to it is stringent to be checked and accepted by regulation tissue, and lower part can be carried out after improving signature confirmation
Process.
(5) by construction site sole duty security official, work progress frame body safe is monitored.Monitoring content are as follows:
1) deformation of triangular support bracket 100, verticality situation；
2) construction loads situation.
(6) during 100 installation of triangular support bracket, special administrative staff is sent to be joined a regular shift or class with scaffolder.
(7) 100 sedimentation and deformation of triangular support bracket is controlled by the 0.1% of height, early warning value 2cm, verticality early warning
Value is 2cm, should stop concreting when reaching early warning value, take emergency measures, and related personnel's research is organized to handle,
Ensure to reinforce support system in the case where safety.
Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Pipe present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: its according to
So be possible to modify the technical solutions described in the foregoing embodiments, or to some or all of the technical features into
Row equivalent replacement；And these are modified or replaceed, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme.
Claims (10)
- The support system 1. a kind of roofing cornices, which is characterized in that including triangular support bracket (100), main stupefied rod piece (200), the wooden a tree, used in making timber for boats Layer (300) and template (400)；The vertical bar (101) of the triangular support bracket (100) is connected to concrete structure side elevation, the triangular support bracket (100) formwork bracing system as top cornice structure；The stupefied rod piece of master (200) is connected to the top of the horizon bar (102) of the triangular support bracket (100), the wood a tree, used in making timber for boats layer (300) it is laid on the top of the stupefied rod piece of the master (200), the template (400) is laid on the top of the wooden a tree, used in making timber for boats layer (300).
- The support system 2. roofing according to claim 1 cornices, which is characterized in that the vertical bar (101) and concrete Between structure, from top to bottom successively connected using through-wall bolt (103), expansion bolt (104).
- The support system 3. roofing according to claim 2 cornices, which is characterized in that vertical welding on the horizon bar (102) It is connected to the first fixing pipe (105) and the second fixing pipe (106), vertical welding on the brace (107) of the triangular support bracket (100) There are third fixing pipe (108)；First fixing pipe (105), the second fixing pipe (106), third fixing pipe (108) pass through first level support rod respectively (109), the second horizontal support bar (110), third horizontal support bar (111) are connected to and cornice on outrigger；Pass through the 4th horizontal support bar between second horizontal support bar (110) and the third horizontal support bar (111) (112) it connects.
- The support system 4. roofing according to claim 3 cornices, which is characterized in that the horizon bar (102) and it is described tiltedly It is connected between bar (107) by the first web member (113),The point of intersection of the horizon bar (102) and the vertical bar (101) passes through the second web member between the brace (107) (114) it connects.
- The support system 5. roofing according to claim 4 cornices, which is characterized in that further include hound (500) and connection Weighted base (600) in shear wall；The upper end of the hound (500) connects the brace (107) of the triangular support bracket (100), the hound (500) Lower end connects the weighted base (600).
- The support system 6. roofing according to claim 5 cornices, which is characterized in that further include external corner tripod (700)；The vertical section (701) of the external corner tripod (700) is connected on shear wall, the level of the external corner tripod (700) The reinforcing bar (703) of vertical welding is connected to by steel pipe (704) and is corniced on outrigger in section (702).
- The support system 7. roofing according to claim 6 cornices, which is characterized in that the wood a tree, used in making timber for boats layer (300) includes the wooden a tree, used in making timber for boats (301), the quantity of the wooden a tree, used in making timber for boats (301) is multiple, and the distance between adjacent described wooden a tree, used in making timber for boats (301) range is in 190mm-210mm Between；The sectional dimension * length value of the wood a tree, used in making timber for boats (301) is 90mm*40mm*2000mm.
- The support system 8. roofing according to claim 7 cornices, which is characterized in that the Thickness of the template (400) Range is between 10mm-15mm.
- The construction method of support system 9. a kind of roofing as claimed in claim 8 cornices, which is characterized in that including walking as follows It is rapid:(a) pre-buried tripod screw rod hole to be providedPVC30 casing penetrates the side for the outrigger that cornices, pre-buried PVC30 casing, to form the hole to be provided of firm screw rod；It is turned over inside and outside beam in roofing, a C12 reinforcing bar is respectively added in casing two sides, and C12 reinforcing bar is first with tied silk binding and beam hoop On muscle, after service sleeve leveling, beam stirrup is welded, at least two solder joint of both ends reinforcement of weld of each service sleeve；Using drawing logical line to level when service sleeve is pre-buried, when drawing logical line, prolong logical line length every 5 meters of settings, one horizontal absolute altitude control Point processed, it is ensured that when sleeve pipe pre-embedding in same elevation line；(b) in roofing reversed beam casting concreteThe at the uniform velocity casting concrete on roofing reversed beam, is arranged construction joint cornicing on outrigger, hard to reversed beam concrete construction interface After change, sealing rod is installed；Water seasoning is carried out on the surface of concrete, curing time at least 14 days, the intensity of reversed beam concrete is made to reach 20MPa；(c) installation adjusts and sets triangular support bracketThe vertical bar (101) of triangular support bracket (100) is fixed on using through-wall bolt (103), expansion bolt (104) cornice with Under concrete structure in, adjust triangular support bracket (100) verticality, tighten through-wall bolt (103), expansion bolt respectively (104) after, the verticality of triangular support bracket (100) is adjusted again, and the lower anchor slab expanding screw of triangular support bracket (100) is then installed Bolt；(d) three horizontal support bars are installedUsing first level support rod (109), the second horizontal support bar (110), third horizontal support bar (111) respectively to first Fixing pipe (105), the second fixing pipe (106), third fixing pipe (108) position be fixed；(e) the main stupefied rod piece of installationThe inner end of main stupefied rod piece (200) is connected to horizon bar (102) inner end of triangular support bracket (100), first level branch Strut (109), the second horizontal support bar (110) are respectively fixed the position of the stupefied rod piece of master (200)；The upper end of 4th horizontal support bar (112) connects the second horizontal support bar (110), under the 4th horizontal support bar (112) End connection third horizontal support bar (111)；When the stupefied rod piece of master (200) encounters shear wall, weighted base (600) are installed in shear wall side elevation, hound (500) Upper end is connected on brace (107), and the lower end of hound (500) connects weighted base (600)；(f) the wooden a tree, used in making timber for boats layer, template are installedIt is laid with the wooden a tree, used in making timber for boats layer (300) on the stupefied rod piece of master (200), is laid with template (400) above the wooden a tree, used in making timber for boats layer (300)；(g) assembling reinforcementAccording to construction drawing, the reinforcing bar for the beam slab that cornices is installed；(h) casting concreteUniform casting concrete from the inside to the outside, and pour and put outward from the position of the anchor point close to triangular support bracket (100) Material；(i) curing concreteThe surface of concrete is conserved, curing time at least 14 days；(j) triangular support bracket is removedIt checks whether the intensity of entire support system reaches 100%, after reaching, first tears the template (400) of not load-bearing open, then tear load-bearing open Template (400), remove triangular support bracket (100) lateral support, remove triangular support bracket (100) vertical supporting.
- The construction method of support system 10. roofing according to claim 9 cornices, which is characterized in that in above-mentioned steps, When encountering the position of corner, external corner tripod (700) are installed on shear wall.
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| CN201910506984.3A CN110359645A (en) | 2019-06-12 | 2019-06-12 | Roofing cornices support system and its construction method |
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| CN113719118A (en) * | 2021-08-20 | 2021-11-30 | 中建科工集团有限公司 | Steel structure concrete floating plate pouring support frame and construction method thereof |
| CN113914476A (en) * | 2021-10-19 | 2022-01-11 | 广东宏茂建设管理有限公司 | Construction method of long-size overhanging floating plate |
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Application publication date: 20191022 |