CN110184921A - The construction method of steel box-concrete beam lifting system - Google Patents
The construction method of steel box-concrete beam lifting system Download PDFInfo
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- CN110184921A CN110184921A CN201910351273.3A CN201910351273A CN110184921A CN 110184921 A CN110184921 A CN 110184921A CN 201910351273 A CN201910351273 A CN 201910351273A CN 110184921 A CN110184921 A CN 110184921A
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D2101/00—Material constitution of bridges
- E01D2101/20—Concrete, stone or stone-like material
- E01D2101/24—Concrete
- E01D2101/26—Concrete reinforced
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- On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
Abstract
The present invention relates to the construction methods of steel box-concrete beam lifting system, comprising steps of 1) preparation of construction；2) construction bracket is laid；3) steel case concatenation construction；4) concrete pouring construction；5) prestressed cable beam stretching construction.The beneficial effects of the present invention are: construction bracket in-site installation of the present invention is convenient, good integrity, the difficulty of concrete foundation on-site construction time and lateral Bailey beam installation positioning is effectively reduced；Meanwhile beam side rail of the present invention and lateral Bailey beam installation are easy to connect, can save the expense of guardrail installation；Steel case installation positioning accuracy of the present invention is high, displacement is easy, and can apply fastening force to steel case by back clamping plate, reduces the difficulty of welding procedure；Adjustable inner support is set simultaneously inside steel case, can not only promote the globality of steel case, and the utilization rate of material can be promoted.
Description
Technical field
The present invention relates to a kind of globality of lifting construction structure, the difficulty for reducing steel box-girder lifting positioning, improvement coagulations
The construction method of the steel box-concrete beam lifting system of quality, raising prestressed cable beam construction quality that soil pours, belongs to
Science of bridge building field is suitable for steel box-concrete beam construction work.
Background technique
Steel box-concrete beam is a kind of novel compositions section for combining superposed type combination beam and concrete filled steel tube feature
Face beam, the remarkable advantage of steel-concrete composite beam are girder steel and concrete to be allowed to play respective material advantage, and pass through pre-
The assembled method of system obtains faster construction speed, realizes economic technique superiority.In the construction for carrying out steel box-concrete beam
In practice, the pouring quality of the lifting construction precision and concrete that guarantee steel case becomes the technology that engineers and technicians mainly solve
Main points.
Have Composite Steel-Concrete Bridges in the prior art and suspend concatenation construction engineering method in midair, feature includes that one kind is voluntarily set
Steel box-girder splicing positioner device has been counted, required precision is spliced according to steel box-girder, by the theory analysis of system, has derived steel box
The universal calculation equation of beam section Mosaic face corner controlling value and axial deformation environment temperature regulated quantity.The construction method is in certain journey
It can guarantee the precision of steel case lifting on degree while improving the safety of construction, but practical operation is complex, and is not related to coagulation
The construction technologies such as native pouring quality control.
In conclusion existing construction method achieves preferable effect in suitable operating condition, but in lifting construction works
Globality, guarantee concrete pouring quality etc. wait further to study.In consideration of it, urgently inventing a kind of lifting construction at present
The globality of structure, the quality for improving concreting, improves the construction of prestressed cable beam at the difficulty for reducing steel box-girder lifting positioning
The construction method of the steel box-concrete beam lifting system of quality.
Summary of the invention
The purpose of the present invention is overcoming deficiency in the prior art, providing one kind not only can be with the entirety of lifting construction structure
Property, and the difficulty of steel box-girder lifting positioning can be reduced, the quality of concreting can also be improved, improve prestressed cable beam
The construction method of the steel box-concrete beam lifting system of construction quality.
The construction method of steel box-concrete beam lifting system, comprising the following steps:
1) preparation of construction: field surveys determine the spatial position of steel box-concrete beam, apply required for preparation construction
Tooling is set and material, carries out the on-site assembly of each construction member；
2) construction bracket lay: prefabricated foundation is placed in foundation soil top, first make the convex falcon of the connection on prefabricated foundation and
Tongue and groove split connection is connected, then the attachment cap plate being connected firmly with the column bottom leg of a boot is placed in prefabricated foundation top, and in prefabricated base
Cap bottom screed-coat is set between plinth and attachment cap plate, attachment cap plate is then connect with prefabricated foundation by jail by basic tension rib
Gu then applying fastening force to prefabricated foundation；Column side stay is being set at 1/3~1/4 vertical dagger height at the top of vertical dagger
Plate, and dagger horizontal-associate is set between opposite column side stay plate；Capital transverse slat, support cross are set gradually at the top of vertical dagger
Beam and lateral Bailey beam, and back stull is set in support beam and lateral Bailey beam joint；In the outer end of lateral Bailey beam
Beam side rail is arranged in portion, and by guardrail bottom deck, guardrail top deck and transverse direction Bailey beam, to connect into one whole by guardrail fastening bolt
Body；
3) steel case concatenation construction: in end, the inside of box beam and intermediate box beam is respectively provided with adjustable inner support；In lateral shellfish thunder
Bailey beam connector is set on beam；Leveling block, end box beam outside are set between the bottom of end box beam and lateral Bailey beam
End diagonal brace and diagonal brace connecting plate are set between Bailey beam connector, and are welded to connect end diagonal brace and back clamping plate；First exist
Vertical school position body and lateral school position body are set in lateral Bailey beam, are then arranged between lateral school position body and Bailey beam connector
Vertical fagging；Behind synchronous lateral position and vertical position using lateral school position body and vertical Jiao Wei sports school middle box beam, adopt
Vertical school position body is replaced with leveling block；The top setting splicing folder for the box beam vertical plate that box beam connects with intermediate box beam in end
Tool；
4) concrete pouring construction: being laid with bracket fagging between adjacent lateral Bailey beam, and makes bracket fagging and branch
Frame sliding slot is connected firmly；Frame sliding track is set between bracket bottom plate and bracket chute, between bracket bottom plate and lateral Bailey beam
Vertical anchor rod and bottom anchor slab are set, and bracket bottom plate top sets gradually bracket dagger and rack beam；Rack beam with scrape
Pulpboard is connected by sliding slot hanging plate with scraper plate connecting rod, and rack beam and storage sizing device are connected by sliding slot hanging plate and slurry storage tank hanging rod
It connects, and so that scraper plate connecting rod and slurry storage tank hanging rod is slid drag-line with same root and connect；Leakage is set between slip casting funnel and rack beam
Struggle against support, and slip casting lower portion is connect with interior Grouting Pipe；Outer Grouting Pipe is arranged in external in interior Grouting Pipe；Respectively in interior Grouting Pipe
Position plate and lower control position plate are controlled in the top setting of outer Grouting Pipe, and elasticity control position is set between upper control position plate and lower control position plate
Body；In the lightweight kickboard that the bottom end of outer Grouting Pipe setting bottom surface is concordant with nozzle；Make interior Grouting Pipe and funnel support and same root
Slide drag-line connection；In concreting process, the synchronous lateral position by Grouting Pipe and storage sizing device in sliding cable control
It sets, top of concrete is carried out by squeegee and strikes off construction；
5) the prestressed cable beam in box beam concrete prestressed cable beam stretching construction: is passed through into Suo Shu backing plate；In prestressing force
Connecting lateral plate is set on the box beam concrete side wall of the lower part Suo Shu, and is connected connecting lateral plate and box beam concrete by side plate holdfast
It connects securely；Fagging supporter and very heavy top bracing plate| are set gradually on connecting lateral plate；It is successively set on hanging prestressed cable beam
The first anchorage, punching jack and the second anchorage are set, is arranged between the first anchorage and the second anchorage and prestressed cable beam respectively
Fasten intermediate plate；After applying stretching force by punching jack pair prestressed cable beam, postive stop baffle is set to the outside of the second anchorage,
And Limit screw is set between the connection anchor bolt on postive stop baffle and Suo Shu backing plate, Limit screw is applied by fastening bolt
Fastening force；After Suo Shu position-limited hoop plate and prestressed cable beam are connected firmly using fastening hoop, prestressed cable beam is truncated.
As preferred: step 2) the column bottom leg of a boot transverse shape matches with vertical dagger, sets inside the leg of a boot of column bottom
Obturator in cylinder is set, cylinder side fastening bolt is set on the leg of a boot lateral wall of column bottom；The lower surface setting of the capital transverse slat and vertical support
The plate top boots plate to connect with support beam is arranged in the board bottom boots plate that column connects, the upper surface of capital transverse slat；The beam side rail is set
In the outside of lateral Bailey beam, beam side rail is connect with guardrail bottom deck vertical welding.
As preferred: step 3) the adjustable inner support is made of strut connector, inner support cross bar and inner support brace, and
Strut connector and inner support cross bar and inner support brace joint are respectively provided with strut rotating hinge；The inner support cross bar and inner support brace are equal
It is formed using length-adjustable screw rod and nut；The Bailey beam connector is by back clamping plate, beam bottom clamping plate and clamping plate coupling bar
Composition, and back clamping plate and beam bottom clamping plate is made to be located at lateral Bailey beam upper and lower surfaces, back clamping plate and beam bottom folder
Plate is connected and fixed with lateral Bailey beam by clamping plate coupling bar；The splicing fixture is by fixture transverse slat, fixture side plate and clamps spiral shell
Bolt composition；1~2 row is arranged along fixture side plate short transverse in the fishbolt, and fishbolt and fixture side plate vertical welding are in succession
It connects.
As preferred: the step 4) rack beam is formed using steel plate rolling, internal that beam internal chute is arranged；The storage
Sizing device is by slurry storage tank, slurry-feeding hole and connects pulpboard and forms, and slurry-feeding hole is arranged in slurry storage tank side, and is arranged on the bottom plate of slurry storage tank
Mend slurry hole；The bottom surface for connecing pulpboard is concordant with the bottom end of squeegee, and flexibility is arranged between scraper plate connecting rod and storage sizing device
Connecting plate.
As preferred: step 5) the very heavy top bracing plate| is formed using steel plate rolling, very heavy top bracing plate| internal diameter and punching thousand
Jin top outer diameter is identical, and central angle is 30~60 °；The postive stop baffle is formed using steel plate rolling, vertical with Suo Shu position-limited hoop plate
It is welded to connect；The Suo Shu position-limited hoop plate cross section is arc-shaped, and Suo Shu position-limited hoop board diameter is big compared with prestressed cable beam by 5~
10mm, central angle are 30~60 °.
The beneficial effects of the present invention are:
(1) construction bracket in-site installation convenience of the present invention, good integrity, when effectively reducing concrete foundation site operation
Between and the installation positioning of lateral Bailey beam difficulty；Meanwhile beam side rail of the present invention and lateral Bailey beam installation are easy to connect, can save
Save the expense of guardrail installation.
(2) steel case installation positioning accuracy of the present invention is high, displacement is easy, and can be applied by back clamping plate to steel case and be fastened
Power reduces the difficulty of welding procedure；Adjustable inner support is set simultaneously inside steel case, can not only promote the entirety of steel case
Property, and the utilization rate of material can be promoted.
(3) concrete casting device of the present invention is laid convenient, position control and is easy；Meanwhile the present invention can synchronously complete it is mixed
The pouring of solidifying soil, remaining slurry is collected, local repair slurry and surface scrape equality process, can effectively promote the efficiency of concrete pouring construction.
(4) prestressed cable beam stretching construction structural integrity of the present invention is good, and can be by postive stop baffle to anchorage and intermediate plate
Deformation carry out lateral confinement, not only can reduce the loss when truncation of prestressed cable beam, and prestressed cable beam can be improved
The safety of construction is truncated.
Detailed description of the invention
Fig. 1 is steel box-concrete beam construction process figure of the present invention；
Fig. 2 is construction bracket layout stracture schematic diagram；
Fig. 3 is steel case concatenation construction structural schematic diagram；
Fig. 4 is the adjustable inner support structure schematic diagram in Fig. 3；
Fig. 5 is Bailey beam connector and lateral Bailey beam attachment structure schematic diagram in Fig. 3；
Fig. 6 is the splicing fixture structural schematic diagram in Fig. 3；
Fig. 7 is concrete pouring construction structural schematic diagram；
Fig. 8 is the rack beam schematic cross-sectional view in Fig. 7；
Fig. 9 is the storage sizing device structural schematic diagram in Fig. 7；
Figure 10 is prestressed cable beam stretching construction structural schematic diagram.
Description of symbols: 1- prefabricated foundation；2- foundation soil；The convex falcon of 3- connection；4- connection tongue and groove；The 5- column bottom leg of a boot；
6- attachment cap plate；The basis 7- tension rib；The vertical dagger of 8-；9- column side stay plate；10- dagger horizontal-associate；The capital 11- transverse slat；12- support
Crossbeam；13- transverse direction Bailey beam；14- back stull；15- beam side rail；16- guardrail fastening bolt；17- guardrail bottom deck；18- shield
Column top deck；The end 19- box beam；Box beam among 20-；The adjustable inner support of 21-；22- Bailey beam connector；23- leveling block；
The end 24- diagonal brace；25- diagonal brace connecting plate；26- back clamping plate；27- transverse direction school position body；The vertical school position body of 28-；29- splicing fixture；
30- bracket fagging；31- bracket chute；32- bracket bottom plate；33- frame sliding track；The vertical anchor rod of 34-；The bottom 35- anchor slab；36-
Bracket dagger；37- rack beam；38- squeegee；39- sliding slot hanging plate；40- scraper plate connecting rod；41- stores up sizing device；42- slurry storage tank
Hanging rod；43- slides drag-line；44- slip casting funnel；45- funnel support；Grouting Pipe in 46-；The outer Grouting Pipe of 47-；Position plate is controlled on 48-；
Position plate is controlled under 49-；50- elasticity control position body；51- lightweight kickboard；52- prestressed cable beam；53- Suo Shu backing plate；54- connecting lateral plate；
55- side plate holdfast；56- box beam concrete；57- fagging supporter；The very heavy top bracing plate| of 58-；The first anchorage of 59-；60- punching is very heavy
Top；The second anchorage of 61-；62- fastens intermediate plate；63- postive stop baffle；64- connection anchor bolt；65- Limit screw；66- fastening bolt；
67- fastening hoop；68- Suo Shu position-limited hoop plate；Obturator in 69-；70- side fastening bolts；71- board bottom boots plate；72- plate top boots
Plate；73- strut connector；74- inner support cross bar；75- inner support brace；76- strut rotating hinge；77- beam bottom clamping plate；78- clamping plate connects
Connect bolt；79- fixture transverse slat；80- fixture side plate；81- fishbolt；82- beam internal chute；83- slurry storage tank；84- slurry-feeding hole；85-
Connect pulpboard；86- flexible connecting plate；87- mends slurry hole；88- box beam vertical plate；89- cap bottom screed-coat；The vertical fagging of 90-.
Specific embodiment
The present invention is described further below with reference to embodiment.The explanation of following embodiments is merely used to help understand this
Invention.It should be pointed out that for those skilled in the art, without departing from the principle of the present invention, also
Can be with several improvements and modifications are made to the present invention, these improvement and modification also fall into the protection scope of the claims in the present invention
It is interior.
Shown in referring to Fig.1, the construction method of the steel box-concrete beam lifting system, including following construction step
It is rapid:
1) preparation of construction: field surveys determine the spatial position of steel box-concrete beam, apply required for preparation construction
Tooling is set and material, carries out the on-site assembly of each construction member；
2) construction bracket is laid: prefabricated foundation 1 being placed in 2 top of foundation soil, first makes the convex falcon of connection on prefabricated foundation 1
3 and connection 4 split of tongue and groove connection, then the attachment cap plate 6 being connected firmly with the column bottom leg of a boot 5 is placed in 1 top of prefabricated foundation, and
Cap bottom screed-coat 89 is set between prefabricated foundation 1 and attachment cap plate 6, then by basic tension rib 7 by attachment cap plate 6 with it is prefabricated
Basis 1 is connected firmly, then applies fastening force to prefabricated foundation 1；Apart from vertical 8 1/3~1/4 vertical dagger height of top of dagger
Place's setting column side stay plate 9, and dagger horizontal-associate 10 is set between opposite column side stay plate 9；It is successively set at the top of vertical dagger 8
Capital transverse slat 11, support beam 12 and lateral Bailey beam 13 are set, and is arranged in support beam 12 and lateral 13 joint of Bailey beam
Back stull 14；Beam side rail 15 is set in the outer end of lateral Bailey beam 13, and will be held under guardrail by guardrail fastening bolt 16
Plate 17, guardrail top deck 18 and lateral Bailey beam 13 connect integral；
3) steel case concatenation construction: in end, the inside of box beam 19 and intermediate box beam 20 is respectively provided with adjustable inner support 21；In cross
Bailey beam connector 22 is set in Bailey beam 13；Leveling block is set between the bottom of end box beam 19 and lateral Bailey beam 13
23, end diagonal brace 24 and diagonal brace connecting plate 25 are set between 19 outside of end box beam and Bailey beam connector 22, and make end diagonal brace
24 are welded to connect with back clamping plate 26；Vertical school position body 28 and lateral school position body 27 are first set in lateral Bailey beam 13, then
Vertical fagging 90 is set between lateral school position body 27 and Bailey beam connector 22；It is synchronous to use lateral school position body 27 and vertical school
After position body 28 corrects lateral position and the vertical position of intermediate box beam 20, vertical school position body 28 is replaced using leveling block 23；?
Splicing fixture 29 is arranged in the top for the box beam vertical plate 88 that end box beam 19 connects with intermediate box beam 20；
4) concrete pouring construction: it is laid with bracket fagging 30 between adjacent lateral Bailey beam 13, and makes bracket fagging
30 are connected firmly with bracket chute 31；Frame sliding track 33, bracket bottom plate 32 are set between bracket bottom plate 32 and bracket chute 31
Vertical anchor rod 34 and bottom anchor slab 35 are set between lateral Bailey beam 13, and 32 top of bracket bottom plate sets gradually bracket dagger
36 and rack beam 37；Rack beam 37 is connect with squeegee 38 by sliding slot hanging plate 39 and scraper plate connecting rod 40, rack beam 37
Connect with storage sizing device 41 by sliding slot hanging plate 39 and slurry storage tank hanging rod 42, and make scraper plate connecting rod 40 and slurry storage tank hanging rod 42 with together
Piece sliding drag-line 43 connection；Between slip casting funnel 44 and rack beam 37 be arranged funnel support 45,44 lower part of slip casting funnel with
Interior Grouting Pipe 46 connects；Outer Grouting Pipe 47 is arranged in external in interior Grouting Pipe 46；Respectively in interior Grouting Pipe 46 and outer Grouting Pipe 47
Top setting on control position plate 48 and lower control position plate 49, and setting is elastic controls position body between upper control position plate 48 and lower control position plate 49
50；In the lightweight kickboard 51 that the bottom end of outer Grouting Pipe 47 setting bottom surface is concordant with nozzle；Make interior Grouting Pipe 46 and funnel support 45
It is connect with same root sliding drag-line 43；It is synchronous to control interior Grouting Pipe 46 and storage by sliding drag-line 43 in concreting process
The lateral position of sizing device 41 carries out top of concrete by squeegee 38 and strikes off construction；
5) the prestressed cable beam 52 in box beam concrete 56 52 stretching construction of prestressed cable beam: is passed through into Suo Shu backing plate 53；
Connecting lateral plate 54 is set on 56 side wall of box beam concrete of 52 lower part of prestressed cable beam, and passes through side plate holdfast 55 for connecting side
Plate 54 is connected firmly with box beam concrete 56；Fagging supporter 57 and very heavy top bracing plate| 58 are set gradually on connecting lateral plate 54；
The first anchorage 59, punching jack 60 and the second anchorage 61 are set gradually on hanging prestressed cable beam 52, respectively first
Setting fastening intermediate plate 62 between anchorage 59 and the second anchorage 61 and prestressed cable beam 52；By punching jack 60 to prestressed cable
After beam 52 applies stretching force, postive stop baffle 63 is set to the outside of the second anchorage 61, and in postive stop baffle 63 and Suo Shu backing plate 53
On connection anchor bolt 64 between be arranged Limit screw 65, by fastening bolt 66 to Limit screw 65 apply fastening force；Using tight
Gu prestressed cable beam 52 is truncated after Suo Shu position-limited hoop plate 68 and prestressed cable beam 52 are connected firmly by cuff 67.
Referring to shown in Fig. 2-Figure 10, the steel box-concrete beam lifts system, is arranged on prefabricated foundation 1 and connects
Connect cap plate 6；Capital transverse slat 11, support beam 12 and lateral Bailey beam 13 are set gradually at the top of vertical dagger 8；In end case
The inside of beam 19 and intermediate box beam 20 is respectively provided with adjustable inner support 21；Using in lateral school position body 27 and the correction of body 28 of vertical school position
Between box beam 20 lateral position and vertical position；The top for the box beam vertical plate 88 that box beam 19 connects with intermediate box beam 20 in end is set
Set splicing fixture 29；The lateral position that interior Grouting Pipe 46 and storage sizing device 41 are controlled by sliding drag-line 43, passes through squeegee 38
It carries out top of concrete and strikes off construction；Fagging supporter 57 and very heavy top bracing plate| 58 are set gradually on connecting lateral plate 54；It is limiting
Limit screw 65 is set between the connection anchor bolt 64 on position baffle 63 and Suo Shu backing plate 53.
Prefabricated foundation 1 uses reinforced concrete structure, and strength grade of concrete C55 is highly 50cm, width is
100cm；The projecting portion height for connecting convex falcon 3 is 10cm；It is corresponding with convex falcon 3 is connected to connect tongue and groove 4.
Foundation soil 2 is hard plastic state cohesive soil.
The leg of a boot 5 transverse shape in column bottom is similar to vertical dagger 8, forms using with a thickness of the steel plate rolling of 10mm.Vertically
Dagger 8 uses diameter 400mm, and the steel pipe of wall thickness 2mm is made.
Attachment cap plate 6 is used and is formed with a thickness of the steel plate rolling of 2mm.
Basic tension rib 7 uses the spiral of diameter 20mm.
Column side stay plate 9 with a thickness of the steel plate rolling of 10mm using forming, and cross section is arc-shaped, internal diameter 400mm.
Dagger horizontal-associate 10 uses the screw rod of diameter 30mm.
Capital transverse slat 11 is using the steel plate with a thickness of 2cm.
Support beam 12 uses specification to roll for 250 × 250 × 9 × 14 H profile steel.
16 type manganese steel are saved in lateral its purlin of Bailey beam 13, and pin uses chromium-manganese-titanium steel, and bolt uses spring steel making.
Back stull 14 is connect using cutting with a thickness of the steel plate of 1cm with 12 vertical welding of support beam.
Beam side rail 15 is made of the steel pipe of diameter 50mm, is highly 100cm.
Guardrail fastening bolt 16 is made of the screw rod of diameter 22mm.
Guardrail bottom deck 17 and guardrail top deck 18 are all made of to be made with a thickness of the steel plate of 10mm.
End box beam 19, intermediate box beam 20 and box beam vertical plate 88 are all made of and form with a thickness of the steel plate rolling of 1cm.
Adjustable inner support 21 is made of strut connector 73, inner support cross bar 74, inner support brace 75.Strut connector 73 uses
It is made with a thickness of the steel plate of 1cm, length 50cm, is highly width 20cm, 20cm.Inner support cross bar 74 and inner support brace 75
It is all made of the screw rod and nut composition that diameter is 30mm.
Bailey beam connector 22 is made of back clamping plate 26, beam bottom clamping plate 77 and clamping plate coupling bar 78.26 He of back clamping plate
The steel plate that beam bottom clamping plate 77 is all made of with a thickness of 1cm.Clamping plate coupling bar 78 uses diameter for the stainless steel bolt of 30mm.
Leveling block 23 is made of fashioned iron cushion block.
End diagonal brace 24 uses diameter to form for the screw rod of 60mm and bolt combination.
Diagonal brace connecting plate 25 is used and is formed with a thickness of the steel plate rolling of 1cm.
Vertical school position body 28 uses top lift for 30 tons of hydraulic jack；Lateral school position body 27 uses diameter for 60mm's
Screw rod and bolt form.
Splicing fixture 29 is made of fixture transverse slat 79, fixture side plate 80 and fishbolt 81.Fixture transverse slat 79 and chuck side
Plate 80 is all made of to be formed with a thickness of the steel plate rolling of 1cm.Fishbolt 81 use diameter for the screw rod of 22mm and bolt combination and
At.
Bracket fagging 30 and bracket bottom plate 32 are respectively adopted to be cut with a thickness of the steel plate of 2mm and 10mm.
Bracket chute 31 is used and is formed with a thickness of the steel plate rolling of 2mm, groove width 2cm.
Frame sliding track 33 is composed using steel bar and steel wheel.
Vertical anchor rod 34 uses diameter to be made of the screw rod of 16mm.
Bottom anchor slab 35 is using the steel plate with a thickness of 2mm.
Bracket dagger 36 uses diameter to be made of 100mm, wall thickness of the steel pipe of 2mm.
Rack beam 37 is used and is formed with a thickness of the steel plate rolling of 1cm.The width of beam internal chute 82 is 10cm, is highly
2cm。
Squeegee 38 is using the steel plate with a thickness of 2mm；Sliding slot hanging plate 39 is used and is formed with a thickness of the steel plate rolling of 1cm.
Scraper plate connecting rod 40 is used and is made with a thickness of the rubber slab of 2mm.
Storage sizing device 41 by slurry storage tank 83, slurry-feeding hole 84, connect pulpboard 85 and form.
Slurry storage tank hanging rod 42 is made of the steel pipe of diameter 50mm.Slurry storage tank 83 is welded using with a thickness of the alloy sheets of 2mm
It forms, volume 0.1m3.84 height of slurry-feeding hole and width are 100mm.
Pulpboard 85 is connect using the rubber slab with a thickness of 2mm.
Drag-line 43 is slid using the wirerope of diameter 10mm.
For slip casting funnel 44 using forming with a thickness of the steel plate rolling of 1mm, cross section is in infundibulate.
Funnel support 45 uses diameter to form for the steel pipe rolling of 60mm.
Interior Grouting Pipe 46 and outer Grouting Pipe 47 are respectively adopted diameter and are made of the steel pipe of 150mm and 180mm.
The steel plate that upper control position plate 48 and lower control position plate 49 are all made of thickness 2mm is made.
Elasticity control position body 50 uses diameter to be made of the spring material of 10mm.
Lightweight kickboard 51 is using the cystosepiment with a thickness of 1cm.
Prestressed cable beam 52 uses diameter for the steel strand wires of 15.24mm.
Suo Shu backing plate 53 uses the steel plate of thickness 2cm.
Connecting lateral plate 54 is using the steel plate with a thickness of 10mm.
Side plate holdfast 55 uses the expansion bolt of diameter 20mm.
Box beam concrete 56 uses strength grade for the commerical ready-mixed concrete of C55.
Fagging supporter 57 is made of the steel pipe of diameter 60mm.
Very heavy top bracing plate| 58 is formed using steel plate rolling, and internal diameter is identical as 60 outer diameter of punching jack, and central angle is 60 °,
It is cut using with a thickness of the steel plate of 2mm.
First anchorage 59 and the second anchorage 61 are all made of the prestressing force dowel in 9 holes, and fastening intermediate plate 62 uses 3 chip intermediate plates,
It is matched with the first anchorage 59 and the second anchorage 61.
Punching jack 60 uses the hydraulic punching jack of 100t.
Postive stop baffle 63 is used and is formed with a thickness of the steel plate rolling of 1cm.
Connection anchor bolt 64 and fastening bolt 66 are all made of the stainless steel bolt that internal diameter is 30mm.
Limit screw 65 uses the zinc-plated screw rod of diameter 30mm.
Fastening hoop 67 uses width for the hose clamp of 2cm.
Suo Shu position-limited hoop plate 68 with a thickness of the steel plate rolling of 0.5mm using forming, and cross section is arc-shaped, and diameter is answered more in advance
Power Suo Shu 52 is 10mm big, and central angle is 60 °.
Obturator 69 is using the sheet rubber with a thickness of 2mm in cylinder.
Cylinder side fastening bolt 70 uses diameter for the stainless steel bolt of 22mm.
Board bottom boots plate 71 and plate top boots plate 72 are all made of and are made with a thickness of the steel plate of 2mm.
Strut rotating hinge 76 is cut with scissors using the directional rotating of diameter 30mm.
Beam bottom clamping plate 77 is used and is formed with a thickness of the steel plate rolling of 2mm.
Flexible connecting plate 86 is using the rubber slab with a thickness of 2mm.
Mending slurry 87 diameter of hole is 10cm.
Cap bottom screed-coat 89 is using the medium coarse sand with a thickness of 1cm.
Vertical fagging 90 uses to be formed with a thickness of the steel plate rolling of 10mm.
Claims (5)
1. the construction method of steel box-concrete beam lifting system, which is characterized in that including following construction procedure:
1) preparation of construction: field surveys determine the spatial position of steel box-concrete beam, construction dress required for preparation construction
It sets and material, carries out the on-site assembly of each construction member；
2) construction bracket is laid: prefabricated foundation (1) being placed in foundation soil (2) top, first makes the connection on prefabricated foundation (1) convex
Falcon (3) and connection tongue and groove (4) split connection, then the attachment cap plate (6) being connected firmly with the column bottom leg of a boot (5) is placed in prefabricated foundation
(1) top, and cap bottom screed-coat (89) are set between prefabricated foundation (1) and attachment cap plate (6), then pass through basic tension rib
(7) attachment cap plate (6) and prefabricated foundation (1) are connected firmly, then fastening force is applied to prefabricated foundation (1)；In the vertical support of distance
Column side stay plate (9) are set at 1/3~1/4 vertical dagger height at the top of column (8), and are arranged between opposite column side stay plate (9)
Dagger horizontal-associate (10)；Capital transverse slat (11), support beam (12) and lateral Bailey beam are set gradually at the top of vertical dagger (8)
(13), and in support beam (12) and lateral Bailey beam (13) joint back stull (14) are set；In lateral Bailey beam (13)
Outer end beam side rail (15) are set, and by guardrail fastening bolt (16) by guardrail bottom deck (17), guardrail top deck (18)
It is connected with lateral Bailey beam (13) integral；
3) steel case concatenation construction: in end, the inside of box beam (19) and intermediate box beam (20) is respectively provided with adjustable inner support (21)；?
Bailey beam connector (22) are set on lateral Bailey beam (13)；It is set between the bottom of end box beam (19) and lateral Bailey beam (13)
It sets leveling block (23), end diagonal brace (24) is set on the outside of end box beam (19) between Bailey beam connector (22) and diagonal brace connects
Plate (25), and it is welded to connect end diagonal brace (24) and back clamping plate (26)；Vertical school first is set on lateral Bailey beam (13)
Position body (28) and lateral school position body (27), the then vertical support of setting between lateral school position body (27) and Bailey beam connector (22)
Plate (90)；The synchronous lateral position and vertically that intermediate box beam (20) is corrected using lateral school position body (27) and vertical school position body (28)
Behind position, vertical school position body (28) is replaced using leveling block (23)；In end, box beam (19) connects with intermediate box beam (20)
Splicing fixture (29) are arranged in the top of box beam vertical plate (88)；
4) concrete pouring construction: bracket fagging (30) are laid between adjacent lateral Bailey beam (13), and make bracket fagging
(30) it is connected firmly with bracket chute (31)；Frame sliding track (33) are set between bracket bottom plate (32) and bracket chute (31),
Vertical anchor rod (34) and bottom anchor slab (35), bracket bottom plate (32) are set between bracket bottom plate (32) and lateral Bailey beam (13)
Top sets gradually bracket dagger (36) and rack beam (37)；Rack beam (37) and squeegee (38) pass through sliding slot hanging plate
(39) and scraper plate connecting rod (40) connection, rack beam (37) and storage sizing device (41) pass through sliding slot hanging plate (39) and slurry storage tank hanging rod
(42) it connects, and so that scraper plate connecting rod (40) and slurry storage tank hanging rod (42) is slid drag-line (43) with same root and connect；Slip casting funnel
(44) funnel support (45) are set between rack beam (37), slip casting funnel (44) lower part is connect with interior Grouting Pipe (46)；?
Outer Grouting Pipe (47) is arranged in the external of interior Grouting Pipe (46)；It is arranged respectively at the top of interior Grouting Pipe (46) and outer Grouting Pipe (47)
Upper control position plate (48) and lower control position plate (49), and elasticity control position body is set between upper control position plate (48) and lower control position plate (49)
(50)；In the lightweight kickboard (51) that the bottom end of outer Grouting Pipe (47) setting bottom surface is concordant with nozzle；Make interior Grouting Pipe (46) and leakage
Bucket support (45) is connect with same root sliding drag-line (43)；It is synchronous to pass through sliding drag-line (43) control in concreting process
Interior Grouting Pipe (46) and the lateral position for storing up sizing device (41) carry out top of concrete by squeegee (38) and strike off construction；
5) the prestressed cable beam (52) in box beam concrete (56) prestressed cable beam (52) stretching construction: is passed through into Suo Shu backing plate
(53)；Connecting lateral plate (54) are set on box beam concrete (56) side wall of prestressed cable beam (52) lower part, and pass through side plate anchor
Connecting lateral plate (54) and box beam concrete (56) are connected firmly by nail (55)；Fagging support is set gradually on connecting lateral plate (54)
Body (57) and very heavy top bracing plate| (58)；It is very heavy that the first anchorage (59), punching are set gradually on hanging prestressed cable beam (52)
(60) and the second anchorage (61) are pushed up, is arranged between the first anchorage (59) and the second anchorage (61) and prestressed cable beam (52) respectively
It fastens intermediate plate (62)；After applying stretching force to prestressed cable beam (52) by punching jack (60), postive stop baffle (63) is set
In the outside of the second anchorage (61), and limit is set between the connection anchor bolt (64) on postive stop baffle (63) and Suo Shu backing plate (53)
Position screw rod (65) applies fastening force to Limit screw (65) by fastening bolt (66)；Suo Shu is limited using fastening hoop (67)
After position hoop plate (68) and prestressed cable beam (52) is connected firmly, prestressed cable beam (52) are truncated.
2. the construction method of steel box-concrete beam lifting system according to claim 1, it is characterised in that: step
2) leg of a boot (5) transverse shape in the column bottom matches with vertical dagger (8), obturator in setting cylinder inside the column bottom leg of a boot (5)
(69), cylinder side fastening bolt (70) are set on the column bottom leg of a boot (5) lateral wall；The lower surface setting of the capital transverse slat (11) with it is vertical
The plate top boots to connect with support beam (12) are arranged in the board bottom boots plate (71) that dagger (8) connects, the upper surface of capital transverse slat (11)
Plate (72)；The beam side rail (15) is placed in the outside of lateral Bailey beam (13), beam side rail (15) and guardrail bottom deck (17)
Vertical welding connection.
3. the construction method of steel box-concrete beam lifting system according to claim 1, it is characterised in that: step
3) the adjustable inner support (21) is made of strut connector (73), inner support cross bar (74) and inner support brace (75), and in strut
Connector (73) and inner support cross bar (74) and inner support brace (75) joint are respectively provided with strut rotating hinge (76)；The inner support cross bar
(74) and inner support brace (75) is all made of length-adjustable screw rod and nut forms；The Bailey beam connector (22) is pressed from both sides by back
Plate (26), beam bottom clamping plate (77) and clamping plate coupling bar (78) composition, and make back clamping plate (26) and beam bottom clamping plate (77) position respectively
In lateral Bailey beam (13) upper and lower surfaces, back clamping plate (26) and beam bottom clamping plate (77) pass through with lateral Bailey beam (13)
Clamping plate coupling bar (78) is connected and fixed；The splicing fixture (29) is by fixture transverse slat (79), fixture side plate (80) and fishbolt
(81) it forms；1~2 row, fishbolt (81) and fixture is arranged along fixture side plate (80) short transverse in the fishbolt (81)
The connection of side plate (80) vertical welding.
4. the construction method of steel box-concrete beam lifting system according to claim 1, it is characterised in that: step
4) rack beam (37) is formed using steel plate rolling, internal that beam internal chute (82) are arranged；The storage sizing device (41) by
Slurry storage tank (83), slurry-feeding hole (84) and pulpboard (85) composition is connect, slurry-feeding hole (84) are arranged in slurry storage tank (83) side, and in slurry storage tank
(83) slurry hole (87) is mended in setting on bottom plate；The bottom surface for connecing pulpboard (85) is concordant with the bottom end of squeegee (38), and is scraping
Flexible connecting plate (86) are set between plate connecting rod (40) and storage sizing device (41).
5. the construction method of steel box-concrete beam lifting system according to claim 1, it is characterised in that: step
5) the very heavy top bracing plate| (58) is formed using steel plate rolling, very heavy top bracing plate| (58) internal diameter and punching jack (60) outer diameter phase
Together, central angle is 30~60 °；The postive stop baffle (63) is formed using steel plate rolling, with Suo Shu position-limited hoop plate (68) vertical welding
It connects in succession；Suo Shu position-limited hoop plate (68) cross section is arc-shaped, and Suo Shu position-limited hoop plate (68) diameter is compared with prestressed cable beam
(52) big 5~10mm, central angle are 30~60 °.
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| CN110983987A (en) * | 2019-12-24 | 2020-04-10 | 德州市公路工程总公司 | Construction method of steel-concrete combined beam |
| CN111203977A (en) * | 2020-01-20 | 2020-05-29 | 四川路航建设工程有限责任公司 | Construction method of prefabricated box girder |
| CN111851309A (en) * | 2020-08-12 | 2020-10-30 | 安徽省公路桥梁工程有限公司 | Cast-in-place box girder construction method |
| CN112252167A (en) * | 2020-10-14 | 2021-01-22 | 浙江世润建创科技发展有限公司 | Bridge capping beam and construction method |
| CN113756196A (en) * | 2021-09-08 | 2021-12-07 | 安徽省路港工程有限责任公司 | Construction method of large-cantilever inclined web wide box girder |
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| CN113756196A (en) * | 2021-09-08 | 2021-12-07 | 安徽省路港工程有限责任公司 | Construction method of large-cantilever inclined web wide box girder |
| CN113756196B (en) * | 2021-09-08 | 2023-08-11 | 安徽省路港工程有限责任公司 | Construction method of large cantilever inclined web wide box girder |
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