CN106192757A - A kind of paving steel bridge deck method of assembling - Google Patents
A kind of paving steel bridge deck method of assembling Download PDFInfo
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- CN106192757A CN106192757A CN201610559391.XA CN201610559391A CN106192757A CN 106192757 A CN106192757 A CN 106192757A CN 201610559391 A CN201610559391 A CN 201610559391A CN 106192757 A CN106192757 A CN 106192757A
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- asphalt
- mating formation
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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
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B26/00—Compositions of mortars, concrete or artificial stone, containing only organic binders, e.g. polymer or resin concrete
- C04B26/02—Macromolecular compounds
- C04B26/26—Bituminous materials, e.g. tar, pitch
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L95/00—Compositions of bituminous materials, e.g. asphalt, tar, pitch
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/08—Damp-proof or other insulating layers; Drainage arrangements or devices ; Bridge deck surfacings
- E01D19/083—Waterproofing of bridge decks; Other insulations for bridges, e.g. thermal ; Bridge deck surfacings
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/12—Grating or flooring for bridges; Fastening railway sleepers or tracks to bridges
- E01D19/125—Grating or flooring for bridges
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Civil Engineering (AREA)
- Architecture (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Ceramic Engineering (AREA)
- Health & Medical Sciences (AREA)
- Polymers & Plastics (AREA)
- Medicinal Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Road Paving Structures (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
A kind of paving steel bridge deck method, process including steel bridge deck, water-proof tack coat is constructed, mat formation lower floor construction, Steel Bridge Deck assembly and the process of joint and upper strata construction of mating formation, wherein steel bridge deck processes, water-proof tack coat is constructed, lower floor's construction of mating formation completes in factory, and construct and complete at the construction field (site) in the assembled process with joint of Steel Bridge Deck and upper strata of mating formation, so that steel deck paving is contained in automatization in Factory Building, Virtual production, solve restriction that professional equipment must construct at the scene and the difficult problem that adverse circumstances factor can not be constructed, efficiency and the steel deck paving packing quality of paving steel bridge deck have been effectively ensured.
Description
Technical field
The invention belongs to steel bridge pavement technique field, be specifically related to a kind of paving steel bridge deck method of assembling.
Background technology
Conventional paving steel bridge deck is all to lift after welding completes in steel box-girder section, then carries out entirety and mat formation, according to paving
Dress order is usually: steel plate carries out derusting by sandblasting process, coating anticorrosive coat and water-proof tack coat, lays pave-load layer.Wherein, spray
Sand rust cleaning, anticorrosive coat and water-proof tack coat are the most all divided into segment to construct (20～50m is one section), and concrete pavement layer is usual
View picture is constructed.After having mated formation, it is followed successively by from the bottom up: box beam top board, anticorrosive coat, water-proof tack coat, lower floor of mating formation.
Paving steel bridge deck at home and abroad broadly falls into the engineering that difficulty is bigger, has carried out more scientific research for paving steel bridge deck
Project, typically now uses special material to mat formation, such as casting type asphaltic mixture, epoxy asphalt mixture etc., but due to
These materials are required for special equipment and special technique, and paving steel bridge deck engineering is little and scattered in addition, and field conduct exists more
Problem.Owing to on-site construction processes is many, work post is miscellaneous, Design of Construction Organization, safety, civilized construction are had high requirements, existing execute
The problem of work is mainly reflected in: (1) pavement material is high, at natural environment temperature, humidity, wind, rain, snow etc. to environmental requirement of mating formation
Can not be in the case of manual control, the duration is uncontrollable, mass defect is many；(2) site operation Mechanization Level is low, and operating worker is many,
Overall efficiency of construction is the highest, and the quality of construction worker is very different, affects construction quality；(3) Steel Bridge Deck is complete in job shop
The derusting by sandblasting become and anticorrosive coating, destroyed in transport, hoisting process, it is both needed to scene sandblasting again, application, direct economy
Loss is serious；(4) the domestic quantity of special equipment for paving steel bridge deck construction is few, and pave-load layer construction is restricted.
Summary of the invention
In order to solve the defect of prior art, it is an object of the invention to provide the paving steel bridge deck side of a kind of assembling
Method, the method makes steel deck paving be contained in automatization, Virtual production in Factory Building, and solving professional equipment must construct at the scene
Restriction and the difficult problem that can not construct of adverse circumstances factor, efficiency and the paving steel bridge deck matter of paving steel bridge deck have been effectively ensured
Amount.
In order to realize foregoing invention purpose, the present invention is achieved through the following technical solutions:
A kind of paving steel bridge deck method of assembling, executes including steel bridge deck process, water-proof tack coat construction, lower floor of mating formation
The assembly of work, Steel Bridge Deck and the process of joint and upper strata construction of mating formation, it is characterised in that employing following steps:
Step 1) steel bridge deck process: after steel box girder segment assembles in factory, the top board of steel box girder segment is entered
Row derusting by sandblasting, the steel bridge deck surface construction anticorrosive coat after derusting by sandblasting；
Step 2) water-proof tack coat construction: in factory, to construction waterproof tack coat on the steel bridge deck after painting corrosion resistant coating；
Step 3) lower floor's construction of mating formation: carrying out lower floor's construction of mating formation in factory, during construction, the joint at steel box-girder needs
The position of welding blanks area in advance；
Step 4) the assembled process with joint of Steel Bridge Deck: steel box girder segment is welded assembly by bridge erection scene, spells
Water-proof tack coat and lower floor of mating formation is laid in joint location after dress；
Step 5) upper strata construction of mating formation: after joint location is disposed, the construction of full-bridge view picture is mated formation upper strata.
It is true that it is first to be laid on steel box girder segment by bridge deck pavement that assembled steel bridge floor is mated formation, at lifting scene
Welding assembly is carried out behind steel box girder segment lifting location.Welding, welding temperature is needed in an assembling process between adjacent steel box beam
Up to 1450 DEG C, inventor finds in R&D process, once controls bad being easy for and occurs that high temperature lays complete preventing
Water tack coat and the situation of pave-load layer.Thus the process of joint is most important for paving steel bridge deck；And joint location
Need repeatedly to construct, once process the bad quality problems being easy to bed rearrangement bridge occurs.It can be said that spread for assembled steel bridge floor
For dress, can joint location be handled well is the key that can later stage paving steel bridge deck properly functioning.The present invention connects at steel box-girder
The area that blanks in advance, head position does not paves, and after treating steel box-girder welding assembly, then lays water-proof binding in joint location
Layer and pave-load layer, form complete pave-load layer, thus effectively solve the situation of high temperature water-proof tack coat and pave-load layer,
Solve high temperature the most cleverly and lay complete water-proof tack coat and the technical problem of pave-load layer, be effectively guaranteed dress
Join the quality of formula paving steel bridge deck.
In order to avoid high-temperature soldering damages water-proof tack coat and pave-load layer, reduce wet trade simultaneously, above-mentioned blank area
Width is preferably 10～50cm.
For improving Steel Bridge Deck Pavement durability, mat formation lower floor or upper strata of mating formation is preferably bituminous concrete, coagulating cement
Soil or macromolecule resin material, described bituminous concrete is cast asphalt concrete, modified asphalt concrete or bituminous epoxy
Concrete.
The problem easy to crack for solving pave-load layer, suitably reduction pave-load layer thickness, to reduce pavement surfaces stretching strain, is mated formation
Lower thickness is preferably 20～50mm, and upper thickness of mating formation is preferably 25～50mm.
For strengthening antiseptic property, the corrosion resistant coating after derusting by sandblasting is preferably acrylic acid corrosion resistant coating or epoxy zinc-rich paint.
For strengthening the cohesive force between lower floor and steel plate of mating formation, water-proof tack coat is preferably acrylic resin, methacrylic acid
Late resin, polyurethane modified epoxy resin, epoxy resin, bituminous epoxy or solvent based adhesive one or more groups therein
Close.
In work progress, inventor finds, step 3) in factory, use mating formation of plain asphalt mixture material production
, after long-distance transportation or preserving the several months, easily there is rotten, aging phenomenon, the back axle thus impact is mated formation in lower floor
The quality (as bag and anti-water damage ability etc. are gathered around in pontic deformation, displacement, passage) in face.Therefore mat formation lower floor be preferably epoxy drip
Blue or green concrete, cast asphalt concrete or cement concrete.Further preferably cast asphalt concrete.
For strengthening casting type asphaltic mixture durability, its proportioning is preferably modified pitch, rubble with breeze according to quality
Ratio is that 7～10:40～80:15～40 mixs form, and is in parts by weight.It is specially and rubble is heated to 250～350 DEG C, so
Rear rubble and breeze dry mixing 5～30s, mix and stir 40～120s and form, wherein mix and stir after adding the modified pitch of 100～200 DEG C
Rear drop temperature is 160～280 DEG C.
Above-mentioned modified pitch preferably lake asphalt mix join Colophonium, polymer modified asphalt, asphalt one or more
Combine with any proportioning.
Modified pitch more preferably polymer modified asphalt, embedding by asphalt, s-B-S
Section copolymer and the modification such as stabilizer, high-temperature viscosity reducer form.
Most preferably modified pitch proportioning is 100 parts of asphalt, 10～15 parts of butadiene-styrene rubber, 8～20 parts of styrene-fourths
Styrene block copolymer or styrene isoprene styrene block copolymer (SIS) SIS, 2～8 parts of plasticizers, 0.1～
5 parts of stabilizers, 2～18 parts of high-temperature viscosity reducers compositions, wherein, described asphalt be road straight run 70# asphalt or
50# asphalt；Described butadiene-styrene rubber is oil-extended styrene buadiene rubber；Described plasticizer be Oleum Ricini and phthalic acid two pungent
The ratio of ester, Oleum Ricini and dioctyl phthalate is 1: 4～4: 1；Described stabilizer is sulfur and tetra methylthiuram
The ratio changing two sulfur, sulfur and tetramethylthiuram disulfide is 1: 3～3: 1；Described high-temperature viscosity reducer is that para hydroxybenzene is sweet
Propylhomoserin and synthesis paraffin, the ratio of D-pHPG and synthesis paraffin is: 1: 8～8: 1.
In work progress, inventor finds, step 2) use that common water-proof binding layer material produces in factory waterproof
, after long-distance transport or long period preserve, easily there is rotten, cracking phenomena in tack coat, thus cause floorings with
Bridge deck pavement has moisture entrapment, and generation of being in use heated expands, and causes occurring more bulge, cracking, pit etc.
Technical problem.Therefore preferably water-proof binding layer material is methacrylic resin, bituminous epoxy or epoxy resin.Further preferably
For polymethyl methacrylate resin material.
Most preferably, polymethyl methacrylate resin, in tri-level construction mode, is followed successively by from the bottom up: 1～2kg/m2First
Base methacrylate resin (ground floor), 1～2kg/m2Polymethyl methacrylate resin (second layer), 0.05～0.40kg/m2Third
Olefin(e) acid resinoid bond (third layer).Above-mentioned corrosion resistant coating is preferably acrylic acid corrosion resistant coating or epoxy zinc-rich paint, consumption be 0.05～
0.4kg/m2。
Beneficial effect:
Present invention achieves steel deck paving and be contained in automatization, Virtual production in Factory Building, be effectively increased construction quality, keep away
Exempt from the environmental factors impact on site operation, be beneficial to plan the engineering time, shorten total lever factor, reduce cost；Constructed
Cheng Caiyong cross construction, realizes rationally overlap joint between each working procedure, without cross influence, beneficially construction organization plan and work is raw
The raising of productivity；The resource put into more equalizes, the most raw-material supply；Construction in Factory Building, for site safety management, civilization
Construction and scientific management create advantage.
The present invention prepares water-proof tack coat by specific material and technology, effectively solves and transports for long-distance or longer
Time retains rotten, the cracking occurred, and causes floorings and bridge deck pavement to have moisture entrapment, in use by delivery in hot weather
Raw expand, then cause occurring the technical problems such as more bulge, cracking, pit.The present invention constructs in Factory Building, it is possible to very well
Controlling Factory Building humidity and temperature, floorings and bridge deck pavement do not have moisture entrapment, and fabulous improves construction quality.
The present invention uses casting type asphaltic mixture as pave-load layer, solves pave-load layer cracking in transportation and asks
Topic, it is possible to well adapt to the deformation in transportation of the steel bridge sections, is difficult to cracking disease during bridge floor uses,
It is obtained in that and preferably uses quality and longer service life.
Accompanying drawing explanation
Fig. 1 is paving steel bridge deck schematic diagram
Detailed description of the invention
Below by specific embodiment, the invention will be further described, and following example are illustrative, is not limit
Qualitatively, it is impossible to limit protection scope of the present invention with this.The present invention is raw materials used is commercially available prod.Modified pitch of the present invention
Concrete preparation method see CN 101781469A.
Embodiment 1
A kind of assemblingization paving steel bridge deck method, in turn includes the following steps:
Wherein step 1), step 2), step 3) be to construct in factory, after construction, box girder transport to bridge is on-the-spot,
Step 4 is carried out after installing) and step 5) construction:
Step 1) steel bridge deck process: after steel box girder segment assembles in factory, the top board of steel box girder segment is entered
Row derusting by sandblasting, the steel bridge deck surface after derusting by sandblasting is coated with acrylic acid corrosion resistant coating, and (consumption is 0.20kg/m2)。
Step 2) water-proof tack coat construction: in factory, to construction waterproof tack coat on the steel bridge deck after painting corrosion resistant coating,
Dividing tri-level construction, (consumption is 1.5kg/m to molding ground floor polymethyl methacrylate resin the most successively2), second layer first
(consumption is 1.5kg/m to base methacrylate resin2), (consumption is 0.25kg/m to third layer acrylic resin binder2)。
Step 3) lower floor's construction of mating formation: in factory with cast-type concrete carry out mating formation lower floor's construction (thickness be 30～
40mm), during construction, the joint at steel box-girder needs the position of welding to blank in advance area, and blank area does not carry out water-proof tack coat
With the construction of lower floor of mating formation, and the width in blank area is 15～about 25cm.Wherein casting type asphaltic mixture drips with modification
Blue or green (asphalt, styrene butadiene styrene block copolymer (SBS) and stabilizer, high-temperature viscosity reducer modification form), rubble with
Breeze is that 7～10:40～80:15～40 mixs form according to mass ratio, is in parts by weight.It is specially and rubble is heated to
250～350 DEG C, then rubble and breeze dry mixing 5～30s, mix and stir 40～120s after adding the modified pitch of 100～200 DEG C
Forming, wherein mixing and stirring rear drop temperature is 160～280 DEG C.
Step 4) the assembled process with joint of Steel Bridge Deck: steel box girder segment is welded assembly by bridge erection scene, spells
In joint location after dress, carry out wet seaming position and pave, lay water-proof tack coat and lower floor of mating formation, make bituminous concrete spread
Dressing up is an entirety, assembled schematic diagram such as Fig. 1.
Step 5) upper strata laying of mating formation: cleaning cast asphalt concrete surface, spray emulsified asphalt, use SMA Colophonium
Concrete carries out upper strata laying (thickness is 35～40mm) of mating formation.
Use (" asphalt four-point bending fatigue life test " (" highway engineering Colophonium and Asphalt Mixture Experiment rule
Journey " T 0739-2011 in (JTG E20-2011)) test method tests, and experimental condition is 15 DEG C, loading frequency 10Hz,
Load strain 500 ε μ, continuous polarization string loading mode, be about 800,000 times the fatigue life of plain asphalt compound AC13, and this
Invention casting type asphaltic mixture GA10 is about 1,500,000 times).Use plain asphalt compound with common during as laid in factory
Water-proof binding layer material, the most easily produces catabiosis in long-distance transport, be transported to its serviceability meeting behind scene
Have and reduce largely, use the preferred water-proof binding layer material and asphalt proposed in the present invention, in transportation not
(common water-proof bond material, after 70 DEG C of heat ageings of modified pitch 56 days, it is impossible to by " buildings waterproof catabiosis easily occurs
Coating test method " low temperature flexibility test in (GB/T16777-2008)；And the present invention is combined polymethyl methacrylate resin
Water-proof bond material then can be tested by low temperature flexibility in " Test methods for building waterproof coatings " (GB/T16777-2008)),
Ensure that the durability of pave-load layer.
Embodiment 2
A kind of assemblingization paving steel bridge deck method, in turn includes the following steps:
Wherein step 1), step 2), step 3) be to construct in factory, after construction, box girder transport to bridge is on-the-spot,
Step 4 is carried out after installing) and step 5) construction:
Step 1) steel bridge deck process: after steel box girder segment assembles in factory, the top board of steel box girder segment is entered
Row derusting by sandblasting, the steel bridge deck surface after derusting by sandblasting is coated with acrylic acid corrosion resistant coating, and (consumption is 0.05kg/m2)。
Step 2) water-proof tack coat construction: in factory, to construction waterproof tack coat on the steel bridge deck after painting corrosion resistant coating,
Dividing tri-level construction, (consumption is 1.0kg/m to molding ground floor polymethyl methacrylate resin the most successively2), second layer first
(consumption is 1.0kg/m to base methacrylate resin2), (consumption is 0.10kg/m to third layer acrylic resin binder2)。
Step 3) lower floor's construction of mating formation: in factory with cast-type concrete carry out mating formation lower floor's construction (thickness be 20～
30mm), during construction, the joint at steel box-girder needs the position of welding to blank in advance area, and blank area does not carry out water-proof tack coat
With the construction of lower floor of mating formation, and the width in blank area is 10～about 15cm.Wherein casting type asphaltic mixture drips with modification
Blue or green, rubble is that 7～10:40～80:15～40 mixs form with breeze according to mass ratio, is in parts by weight.Specially by broken
Stone is heated to 250～350 DEG C, and then rubble and breeze dry mixing 5～30s, mix and stir after adding the modified pitch of 100～200 DEG C
40～120s form, and wherein mixing and stirring rear drop temperature is 160～280 DEG C.Modified pitch proportioning be 100 parts of asphalt, 10～
15 parts of butadiene-styrene rubber, 8～20 parts of styrene butadiene styrene block copolymer (SBS) or styrene-isoprene-phenylethene are embedding
Section copolymer SIS, 2～8 parts of plasticizers, 0.1～5 part of stabilizer, 2～18 parts of high-temperature viscosity reducer compositions, wherein, described oil
Colophonium is road straight run 70# asphalt or 50# asphalt；Described butadiene-styrene rubber is oil-extended styrene buadiene rubber；Described
Plasticizer be the ratio of Oleum Ricini and dioctyl phthalate, Oleum Ricini and dioctyl phthalate be 1: 4～4: 1；Institute
The stabilizer stated be the ratio of sulfur and tetramethylthiuram disulfide, sulfur and tetramethylthiuram disulfide be 1: 3～3:
1；Described high-temperature viscosity reducer is D-pHPG and synthesis paraffin, D-pHPG and the ratio of synthesis paraffin
For: 1: 8～8: 1.
Step 4) the assembled process with joint of Steel Bridge Deck: steel box girder segment is welded assembly by bridge erection scene, spells
In joint location after dress, carry out wet seaming position and pave, lay water-proof tack coat and lower floor of mating formation, make bituminous concrete spread
Dressing up is an entirety.
Step 5) upper strata laying of mating formation: cleaning cast asphalt concrete surface, spray emulsified asphalt, use bituminous epoxy
Concrete or cement concrete carry out upper strata laying (thickness is 25～50mm) of mating formation.
Embodiment 3
A kind of assemblingization paving steel bridge deck method, in turn includes the following steps:
Wherein step 1), step 2), step 3) be to construct in factory, after construction, box girder transport to bridge is on-the-spot,
Step 4 is carried out after installing) and step 5) construction:
Step 1) steel bridge deck process: after steel box girder segment assembles in factory, the top board of steel box girder segment is entered
Row derusting by sandblasting, the steel bridge deck surface after derusting by sandblasting is coated with epoxy zinc-rich paint, and (consumption is 0.40kg/m2)。
Step 2) water-proof tack coat construction: in factory, to construction waterproof tack coat on the steel bridge deck after painting corrosion resistant coating,
Dividing tri-level construction, (consumption is 2.0kg/m to molding ground floor polymethyl methacrylate resin the most successively2), second layer first
(consumption is 2.0kg/m to base methacrylate resin2), (consumption is 0.40kg/m to third layer acrylic resin binder2)。
Step 3) lower floor's construction of mating formation: in factory with cast-type concrete carry out mating formation lower floor's construction (thickness be 35～
50mm), during construction, the joint at steel box-girder needs the position of welding to blank in advance area, and blank area does not carry out water-proof tack coat
With the construction of lower floor of mating formation, and the width in blank area is 25～about 50cm.Wherein casting type asphaltic mixture drips with modification
Blue or green (asphalt, styrene butadiene styrene block copolymer (SBS) and stabilizer, high-temperature viscosity reducer modification form), rubble with
Breeze is that 7～10:40～80:15～40 mixs form according to mass ratio, is in parts by weight.It is specially and rubble is heated to
250～350 DEG C, then rubble and breeze dry mixing 5～30s, mix and stir 40～120s after adding the modified pitch of 100～200 DEG C
Forming, wherein mixing and stirring rear drop temperature is 160～280 DEG C.
Step 4) the assembled process with joint of Steel Bridge Deck: steel box girder segment is welded assembly by bridge erection scene, spells
In joint location after dress, carry out wet seaming position and pave, lay water-proof tack coat and lower floor of mating formation, make bituminous concrete spread
Dressing up is an entirety.
Step 5) upper strata laying of mating formation: cleaning cast asphalt concrete surface, spray emulsified asphalt, use bituminous epoxy
Concrete or cement concrete carry out upper strata laying (thickness is 40～50mm) of mating formation.
Embodiment 4
A kind of assemblingization paving steel bridge deck method, in turn includes the following steps:
Wherein step 1), step 2), step 3) be to construct in factory, after construction, box girder transport to bridge is on-the-spot,
Step 4 is carried out after installing) and step 5) construction:
Step 1) steel bridge deck process: after steel box girder segment assembles in factory, the top board of steel box girder segment is entered
Row derusting by sandblasting, the steel bridge deck surface after derusting by sandblasting is coated with epoxy zinc-rich paint, and (consumption is 0.30kg/m2)。
Step 2) water-proof tack coat construction: in factory, to construction waterproof tack coat on the steel bridge deck after painting corrosion resistant coating,
Dividing tri-level construction, (consumption is 1.8kg/m to molding ground floor polymethyl methacrylate resin the most successively2), second layer first
(consumption is 1.8kg/m to base methacrylate resin2), (consumption is 0.35kg/m to third layer acrylic resin binder2)。
Step 3) lower floor's construction of mating formation: in factory with cast-type concrete carry out mating formation lower floor's construction (thickness be 30～
40mm), during construction, the joint at steel box-girder needs the position of welding to blank in advance area, and blank area does not carry out water-proof tack coat
With the construction of lower floor of mating formation, and the width in blank area is 15～about 25cm.Wherein casting type asphaltic mixture is with lake asphalt
Mix that to join Colophonium, rubble with breeze be that 7～10:40～80:15～40 mixs form according to mass ratio, be in parts by weight.Specifically
For rubble is heated to 250～350 DEG C, then rubble and breeze dry mixing 5～30s, the lake asphalt adding 100～200 DEG C is mixed
Mixing and stirring 40～120s after joining Colophonium to form, wherein mixing and stirring rear drop temperature is 160～280 DEG C.
Step 4) the assembled process with joint of Steel Bridge Deck: steel box girder segment is welded assembly by bridge erection scene, spells
In joint location after dress, carry out wet seaming position and pave, lay water-proof tack coat and lower floor of mating formation, make bituminous concrete spread
Dressing up is an entirety.
Step 5) upper strata laying of mating formation: cleaning cast asphalt concrete surface, spray emulsified asphalt, use cast-type drip
Blue or green concrete carries out upper strata laying (thickness is 35～40mm) of mating formation.
Embodiment 5
A kind of assemblingization paving steel bridge deck method, in turn includes the following steps:
Wherein step 1), step 2), step 3) be to construct in factory, after construction, box girder transport to bridge is on-the-spot,
Step 4 is carried out after installing) and step 5) construction:
Step 1) steel bridge deck process: after steel box girder segment assembles in factory, the top board of steel box girder segment is entered
Row derusting by sandblasting, the steel bridge deck surface after derusting by sandblasting is coated with acrylic acid corrosion resistant coating, and (consumption is 0.18kg/m2)。
Step 2) water-proof tack coat construction: in factory, to construction waterproof tack coat on the steel bridge deck after painting corrosion resistant coating,
Dividing tri-level construction, (consumption is 1.2kg/m to molding ground floor polymethyl methacrylate resin the most successively2), second layer first
(consumption is 1.2kg/m to base methacrylate resin2), (consumption is 0.28kg/m to third layer acrylic resin binder2)。
Step 3) lower floor's construction of mating formation: in factory with cast-type concrete carry out mating formation lower floor's construction (thickness be 30～
40mm), during construction, the joint at steel box-girder needs the position of welding to blank in advance area, and blank area does not carry out water-proof tack coat
With the construction of lower floor of mating formation, and the width in blank area is 25～about 30cm.Wherein casting type asphaltic mixture drips with oil
Blue or green, rubble is that 7～10:40～80:15～40 mixs form with breeze according to mass ratio, is in parts by weight.Specially by broken
Stone is heated to 250～350 DEG C, and then rubble and breeze dry mixing 5～30s, mix and stir after adding the asphalt of 100～200 DEG C
40～120s form, and wherein mixing and stirring rear drop temperature is 160～280 DEG C.
Step 4) the assembled process with joint of Steel Bridge Deck: steel box girder segment is welded assembly by bridge erection scene, spells
In joint location after dress, carry out wet seaming position and pave, lay water-proof tack coat and lower floor of mating formation, make bituminous concrete spread
Dressing up is an entirety.
Step 5) upper strata laying of mating formation: cleaning cast asphalt concrete surface, spray emulsified asphalt, use cast-type drip
Blue or green concrete carries out upper strata laying (thickness is 35～40mm) of mating formation.
Embodiment 6
The double-deck bituminous epoxy paving steel bridge deck method of assemblingization, in turn includes the following steps:
Wherein step 1), step 2), step 3) be to construct in factory, after construction, box girder transport to bridge is on-the-spot,
Step 4 is carried out after installing) and step 5) construction:
Step 1) steel bridge deck process: after steel box girder segment assembles in factory, the top board of steel box girder segment is entered
Row derusting by sandblasting, cleannes Sa2.5 level, roughness Rz40～80 μm；It is rich that steel bridge deck surface after derusting by sandblasting is coated with epoxy
(consumption is 0.30kg/m to zinc paint2)。
Step 2) water-proof tack coat construction: in factory, to construction waterproof tack coat on the steel bridge deck after painting corrosion resistant coating,
In order to dispense bituminous epoxy binding material, (consumption is 0.68L/m to form of construction work2)。
Step 3) lower floor's construction of mating formation: in factory with cast-type concrete carry out mating formation lower floor's construction (thickness be 40～
50mm), during construction, the joint at steel box-girder needs the position of welding to blank in advance area, and blank area does not carry out water-proof tack coat
With the construction of lower floor of mating formation, and the width in blank area is 15～about 25cm.Mat formation the bituminous epoxy coagulation that lower floor is 2.5cm
Soil.
Step 4) the assembled process with joint of Steel Bridge Deck: steel box girder segment is welded assembly by bridge erection scene, spells
In joint location after dress, carry out wet seaming position and pave, lay water-proof tack coat and lower floor of mating formation, make bituminous concrete spread
Dressing up is an entirety.
Step 5) upper strata laying of mating formation: cleaning epoxy asphalt concrete surface, use epoxy asphalt concrete to carry out 3.0cm
Mat formation upper strata lay.
Embodiment 7
Assemblingization double-deck pouring formula+SMA paving steel bridge deck method, in turn includes the following steps:
Wherein step 1), step 2), step 3) be to construct in factory, after construction, box girder transport to bridge is on-the-spot,
Step 4 is carried out after installing) and step 5) construction:
Step 1) steel bridge deck process: after steel box girder segment assembles in factory, the top board of steel box girder segment is entered
Row derusting by sandblasting, cleannes Sa2.5 level, roughness 50～100 μm；Steel bridge deck surface after derusting by sandblasting is coated with acrylic acid and prevents
(consumption is 0.30kg/m to rotten paint2)。
Step 2) water-proof tack coat construction: in factory, to construction waterproof tack coat on the steel bridge deck after painting corrosion resistant coating,
Dividing tri-level construction, (consumption is 1.5kg/m to molding ground floor polymethyl methacrylate resin the most successively2), second layer first
(consumption is 1.5kg/m to base methacrylate resin2), (consumption is 0.20kg/m to third layer acrylic resin binder2)。
Step 3) lower floor's construction of mating formation: in factory with cast-type concrete carry out mating formation lower floor's construction (thickness be 40～
50mm), during construction, the joint at steel box-girder needs the position of welding to blank in advance area, and blank area does not carry out water-proof tack coat
With the construction of lower floor of mating formation, and the width in blank area is 15～about 25cm.Mat formation lower floor be dispense particle diameter be 5～10mm
Premixed macadam, consumption is 7～12kg/m2, then mat formation pouring asphalt compound GA10.
Step 4) the assembled process with joint of Steel Bridge Deck: steel box girder segment is welded assembly by bridge erection scene, spells
In joint location after dress, carry out wet seaming position and pave, lay water-proof tack coat and lower floor of mating formation, make bituminous concrete spread
Dressing up is an entirety.
Step 5) mat formation upper strata lay: cleaning cast asphalt concrete surface, spray emulsified asphalt, consumption be 0.3～
0.5kg/m2, use SMA10 bituminous concrete to carry out upper strata laying (thickness is 35～40mm) of mating formation.
Embodiment 8
Assemblingization Double-layer asphalt SMA paving steel bridge deck method, in turn includes the following steps:
Wherein step 1), step 2), step 3) be to construct in factory, after construction, box girder transport to bridge is on-the-spot,
Step 4 is carried out after installing) and step 5) construction:
Step 1) steel bridge deck process: after steel box girder segment assembles in factory, the top board of steel box girder segment is entered
Row derusting by sandblasting, cleannes Sa2.5 level, roughness 50～100 μm；Steel bridge deck surface after derusting by sandblasting is coated with epoxy zinc-rich
(consumption is 0.20kg/m to paint2)。
Step 2) water-proof tack coat construction: in factory, to construction waterproof tack coat on the steel bridge deck after painting corrosion resistant coating,
Divide tri-level construction, ground floor coating 500～600g/m2Epoxy resin, dispenses the rubble of 1.18～2.36mm；The second layer is coated with
200～300g/m2Epoxy resin, dispenses the rubble of 0.3～0.6mm；Third layer rubber asphalt sand gel, thickness 3～5mm, coating
Solvent based adhesive 200～400k g/m2。
Step 3) lower floor's construction of mating formation: in factory with cast-type concrete carry out mating formation lower floor's construction (thickness be 40～
50mm), during construction, the joint at steel box-girder needs the position of welding to blank in advance area, and blank area does not carry out water-proof tack coat
With the construction of lower floor of mating formation, and the width in blank area is 15～about 25cm.Lower floor of mating formation is modified bitumen mixture SMA,
Thickness is 30～36mm.
Step 4) the assembled process with joint of Steel Bridge Deck: steel box girder segment is welded assembly by bridge erection scene, spells
In joint location after dress, carry out wet seaming position and pave, lay water-proof tack coat and lower floor of mating formation, make bituminous concrete spread
Dressing up is an entirety.
Step 5) mat formation upper strata lay: cleaning modified asphalt concrete surface, spray emulsified asphalt, consumption be 0.2～
0.4kg/m2, use SMA bituminous concrete to carry out upper strata laying (thickness is 30～35mm) of mating formation.
Embodiment 9
Assemblingization cast-type+bituminous epoxy paving steel bridge deck method, in turn includes the following steps:
Wherein step 1), step 2), step 3) be to construct in factory, after construction, box girder transport to bridge is on-the-spot,
Step 4 is carried out after installing) and step 5) construction:
Step 1) steel bridge deck process: after steel box girder segment assembles in factory, the top board of steel box girder segment is entered
Row derusting by sandblasting, cleannes Sa2.5 level, roughness 50～100 μm；Steel bridge deck surface after derusting by sandblasting is coated with epoxy zinc-rich
(consumption is 0.30kg/m to paint2)。
Step 2) water-proof tack coat construction: in factory, to construction waterproof tack coat on the steel bridge deck after painting corrosion resistant coating,
Water-proof tack coat is that (consumption is 0.35～0.45kg/m to epoxy adhesive2)。
Step 3) lower floor's construction of mating formation: in factory with cast-type concrete carry out mating formation lower floor's construction (thickness be 40～
50mm), during construction, the joint at steel box-girder needs the position of welding to blank in advance area, and blank area does not carry out water-proof tack coat
With the construction of lower floor of mating formation, and the width in blank area is 15～about 25cm.Lower floor of mating formation is epoxy asphalt concrete EA10,
Thickness is about 30mm.
Step 4) the assembled process with joint of Steel Bridge Deck: steel box girder segment is welded assembly by bridge erection scene, spells
In joint location after dress, carry out wet seaming position and pave, lay water-proof tack coat and lower floor of mating formation, make bituminous concrete spread
Dressing up is an entirety.
Step 5) mat formation upper strata lay: cleaning epoxy asphalt concrete surface, spray epoxy adhesive, consumption be 0.35～
0.45kg/m2, use epoxy asphalt concrete EA10 to carry out upper strata laying (thickness is 25～30mm) of mating formation.
With reference to above-described embodiment 1, run embodiment 10-14 according to following parameter.
| Anticorrosive coat | Water-proof tack coat | Mat formation lower floor | Mat formation upper strata | |
| Embodiment 10 | Epoxy zinc-rich paint | Bituminous epoxy | Epoxy asphalt concrete | Epoxy asphalt concrete |
| Embodiment 11 | Epoxy zinc-rich paint | Two-layer epoxy resin spreads rubble | SMA | SMA |
| Embodiment 12 | Epoxy zinc-rich paint | Bituminous epoxy | Cast asphalt concrete | Epoxy asphalt concrete |
| Embodiment 13 | Acrylic acid corrosion resistant coating | Polymethyl methacrylate resin | Cast asphalt concrete | Macromolecule resin material |
| Embodiment 14 | Epoxy zinc-rich paint | Polyurethane modified epoxy resin | Bituminous concrete | Cement concrete |
The present invention prepares water-proof tack coat by specific material and technology, effectively solves and transports for long-distance or longer
Time retains rotten, the cracking occurred, and causes floorings and bridge deck pavement to have moisture entrapment, in use by delivery in hot weather
Raw expand, then cause occurring the technical problems such as more bulge, cracking, pit.The present invention constructs in Factory Building, it is possible to very well
Controlling Factory Building humidity and temperature, floorings and bridge deck pavement do not have moisture entrapment, and fabulous improves construction quality.
The present invention is automatization, Virtual production in Factory Building, and production efficiency is greatly improved.Assembled engineering table
Building components and fittings production plant, site operation mechanization, organization and administration informationization, both brought production efficiency significantly now
Improve, saved again productivity, ensure that the stability of construction product quality simultaneously.It addition, assemblingization mat formation relative to
Tradition paving process (after waiting that beam section assembly completes, mat formation floorings entirety) has temporal advantage.It is permissible
Build parallel construction simultaneously with bridge early stage, save the engineering time；Finally, it needs workman the most directly to participate in the ring produced
Joint is few, has saved human cost, has improve production efficiency, has reduced the quality fluctuation that manual work is brought.
To sum up, assembled steel bridge floor is mated formation and can be significantly improved efficiency of construction and quality, reduces production cost, greatly shortens bridge
The construction period mated formation in face, technical advantage is obvious.
Claims (12)
1. a paving steel bridge deck method for assembling, executes including steel bridge deck process, water-proof tack coat construction, lower floor of mating formation
The assembly of work, Steel Bridge Deck and the process of joint and upper strata construction of mating formation, it is characterised in that employing following steps:
Step 1) steel bridge deck processes: after steel box girder segment assembles in factory, spray the top board of steel box girder segment
Sand eliminates rust, the steel bridge deck surface construction anticorrosive coat after derusting by sandblasting；
Step 2) water-proof tack coat construction: in factory, to construction waterproof tack coat on the steel bridge deck after painting corrosion resistant coating；
Step 3) is mated formation lower floor's construction: carry out mating formation in factory lower floor's construction, and during construction, the joint at steel box-girder needs welding
Position blank in advance area；
The assembled process with joint of step 4) Steel Bridge Deck: bridge erection is on-the-spot welds assembly to steel box girder segment, and assembly is complete
Water-proof tack coat and lower floor of mating formation is laid in joint location after Biing；
Step 5) is mated formation upper strata construction: after joint location is disposed, the construction of full-bridge view picture is mated formation upper strata.
2. the method for claim 1, it is characterised in that: the width in described blank area is 10 ~ 50cm.
3. method as claimed in claim 1 or 2, it is characterised in that mat formation lower floor described in: or upper strata of mating formation be bituminous concrete,
Cement concrete or macromolecule resin material.
4. method as claimed in claim 3, it is characterised in that: described bituminous concrete is cast asphalt concrete, modification
Bituminous concrete or epoxy asphalt concrete.
5. method as claimed in claim 3, it is characterised in that lower thickness of mating formation described in: is 20 ~ 50mm, upper thickness of mating formation
It is 25 ~ 50mm.
6. the method as described in claim 1 or 2 or 5, it is characterised in that lower floor of mating formation described in: is epoxy asphalt concrete, waters
Note formula bituminous concrete or cement concrete.
7. the method as described in claim 1 or 2 or 5, it is characterised in that: described lower floor of mating formation is cast asphalt coagulation
Soil, described cast asphalt concrete be modified pitch, rubble and breeze be 7 ~ 10:40 ~ 80:15 ~ 40 mix according to mass ratio
Form, be in parts by weight；Described modified pitch is that the one joining Colophonium, polymer modified asphalt, asphalt mixed by lake asphalt
Or several combine with any proportioning.
8. method as claimed in claim 7, it is characterised in that: described polymer modified asphalt be 100 parts of asphalt, 10～
15 parts of butadiene-styrene rubber, 8～20 parts of styrene butadiene styrene block copolymer (SBS) or styrene-isoprene-phenylethene are embedding
Section copolymer SIS, 2～8 parts of plasticizers, 0.1～5 part of stabilizer, 2～18 parts of high-temperature viscosity reducer compositions, wherein, described oil
Colophonium is road straight run 70# asphalt or 50# asphalt；Described butadiene-styrene rubber is oil-extended styrene buadiene rubber；Described
Plasticizer be the ratio of Oleum Ricini and dioctyl phthalate, Oleum Ricini and dioctyl phthalate be 1: 4～4: 1；Institute
The stabilizer stated be the ratio of sulfur and tetramethylthiuram disulfide, sulfur and tetramethylthiuram disulfide be 1: 3～3:
1；Described high-temperature viscosity reducer is D-pHPG and synthesis paraffin, D-pHPG and the ratio of synthesis paraffin
For: 1: 8～8: 1.
9. the method as described in claim 1 or 2 or 4 or 5 or 8, it is characterised in that: described water-proof tack coat is acrylic acid tree
Fat, polymethyl methacrylate resin, polyurethane modified epoxy resin, epoxy resin, bituminous epoxy or solvent based adhesive are wherein
One or more combination.
10. method as claimed in claim 7, it is characterised in that: described water-proof binding layer material is methacrylic resin, ring
Oxygen Colophonium or epoxy resin.
11. methods as claimed in claim 9, it is characterised in that: described water-proof binding layer material is methyl methacrylate tree
Fat material, polymethyl methacrylate resin, in tri-level construction mode, is followed successively by from the bottom up: 1 ~ 2kg/m2Methyl methacrylate
Ester resin (ground floor), 1 ~ 2kg/m2Polymethyl methacrylate resin (second layer), 0.05 ~ 0.40kg/m2Acrylic resin
Binding agent (third layer).
12. the method for claim 1, it is characterised in that: described corrosion resistant coating is acrylic acid corrosion resistant coating or epoxy zinc-rich paint,
Consumption is 0.05 ~ 0.4kg/m2。
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| CN107268434A (en) * | 2017-06-27 | 2017-10-20 | 长安大学 | One kind is applied to the flexible paving structure of the regional Steel Bridge Deck of damp and hot high temperature and construction method |
| CN113174858A (en) * | 2021-04-25 | 2021-07-27 | 中国电建市政建设集团有限公司 | Stress-free installation and adjustment construction method for vertical stay cable of fork-lug type anchorage device |
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| CN115262379A (en) * | 2022-08-22 | 2022-11-01 | 东南大学 | Prefabricated cement concrete bridge deck asphalt pavement structure and its assembly technology |
| CN116356681A (en) * | 2023-04-06 | 2023-06-30 | 东南大学 | Semi-assembled steel box girder bridge deck pavement structure and construction method thereof |
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