CN110528778A - A kind of Steel-concrete Combined Beam Structures that Novel tensile is cut and its manufacture craft - Google Patents
A kind of Steel-concrete Combined Beam Structures that Novel tensile is cut and its manufacture craft Download PDFInfo
- Publication number
- CN110528778A CN110528778A CN201910878578.XA CN201910878578A CN110528778A CN 110528778 A CN110528778 A CN 110528778A CN 201910878578 A CN201910878578 A CN 201910878578A CN 110528778 A CN110528778 A CN 110528778A
- Authority
- CN
- China
- Prior art keywords
- steel
- reinforcing bar
- concrete
- girder steel
- connector
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000004567 concrete Substances 0.000 title claims abstract description 126
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 19
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 182
- 239000010959 steel Substances 0.000 claims abstract description 182
- 239000000463 material Substances 0.000 claims abstract description 47
- 230000002787 reinforcement Effects 0.000 claims abstract description 47
- 238000010008 shearing Methods 0.000 claims abstract description 25
- 230000003014 reinforcing effect Effects 0.000 claims description 119
- 238000000034 method Methods 0.000 claims description 35
- 238000005452 bending Methods 0.000 claims description 32
- 239000011440 grout Substances 0.000 claims description 14
- 238000003466 welding Methods 0.000 claims description 10
- 238000012545 processing Methods 0.000 claims description 9
- 238000010276 construction Methods 0.000 claims description 6
- 210000003205 muscle Anatomy 0.000 claims description 6
- 238000005260 corrosion Methods 0.000 claims description 5
- 230000015572 biosynthetic process Effects 0.000 claims description 4
- 239000000853 adhesive Substances 0.000 claims description 3
- 230000001070 adhesive effect Effects 0.000 claims description 3
- 238000004873 anchoring Methods 0.000 claims description 3
- 238000005422 blasting Methods 0.000 claims description 3
- 238000005266 casting Methods 0.000 claims description 3
- 238000007596 consolidation process Methods 0.000 claims description 3
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 claims description 3
- 210000001161 mammalian embryo Anatomy 0.000 claims description 3
- 238000009417 prefabrication Methods 0.000 claims description 3
- 230000002265 prevention Effects 0.000 claims description 3
- 239000002689 soil Substances 0.000 claims description 3
- 230000003628 erosive effect Effects 0.000 claims 1
- 239000002131 composite material Substances 0.000 abstract description 11
- 230000000694 effects Effects 0.000 abstract description 5
- 239000003822 epoxy resin Substances 0.000 description 9
- 239000004570 mortar (masonry) Substances 0.000 description 9
- 229920000647 polyepoxide Polymers 0.000 description 9
- 230000006378 damage Effects 0.000 description 3
- 229910000851 Alloy steel Inorganic materials 0.000 description 2
- 230000015271 coagulation Effects 0.000 description 2
- 238000005345 coagulation Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 240000002853 Nelumbo nucifera Species 0.000 description 1
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 1
- 235000006510 Nelumbo pentapetala Nutrition 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000009408 flooring Methods 0.000 description 1
- 210000002837 heart atrium Anatomy 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000011376 self-consolidating concrete Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
- E04C3/29—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces built-up from parts of different material, i.e. composite structures
- E04C3/293—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces built-up from parts of different material, i.e. composite structures the materials being steel and concrete
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Chemical & Material Sciences (AREA)
- Composite Materials (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Rod-Shaped Construction Members (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
A kind of Steel-concrete Combined Beam Structures that Novel tensile is cut, including concrete left plate, concrete right panel, girder steel, limitation positioning device, screw rod, upper fixed device, lower fixed device, connector, shearing-resistant member, top longitudinal reinforcement, lower part longitudinal reinforcement and grouting material, shearing-resistant member is connected to girder steel top flange upper surface, limitation positioning device is connected to the edge of girder steel top flange, forms open cavity with girder steel top flange upper surface；Concrete left plate and concrete right panel are connected on girder steel by screw rod, upper fixed device and lower fixed device and connector；Concrete left plate, concrete right panel, connector and limitation positioning device are bonded to the Steel-concrete Combined Beam Structures that Novel tensile is integrally formed and cuts by grouting material material.And provide a kind of manufacture craft of Steel-concrete Combined Beam Structures that Novel tensile is cut.Structure of the invention has preferable shearing resistance, anti-pulling capacity under the effect of multiaxis external load, can be applied in various composite beam bridge engineerings.
Description
Technical field
The present invention relates to the architectural detail of science of bridge building and its construction and construction field, what especially a kind of Novel tensile was cut
Steel-concrete Combined Beam Structures and its manufacture craft.
Background technique
Application of the composite structure in science of bridge building, from initial combination beam coupled column till now and more multiple
The structures such as miscellaneous composite structure contracting tower and hybrid beam, greatly enrich traditional structure type.Steel-concrete composite beam bridge is logical
The setting shear connector between the girder steel of lower part and the concrete flange plate concrete slab on top is crossed to have a common boundary to resist the two
Starting at face and Relative sliding make the two become an entirety and work together, the mechanics after steel plate and concrete bridge plate combination
Performance, overall performance, anti-seismic performance have been more than the respective performance of material, and steel and Reinforced Concrete Materials are organically combined one
The shortcomings that rising, respective material can be made up.Most common connector is Welded-Stud Conectors and perforated panel in composite structure at present
The characteristics of connector (PBL connector), perforated plate connector, is that intensity is high, rigidity is big, but its have to concrete parts it is larger
Weaken, relatively easily leads to concrete parts and crack occur.It is coagulation in hole for generally constructing perforated plate connector in limiting condition
The failure by shear of soil, destruction is brittle break；It is broken in the shearing that limiting condition is usually peg root for Welded-Stud Conectors
Bad, destruction is ductile fracture.Welded-Stud Conectors can be in steel structure surface flexible arrangement, and weld stud connector has specially
Door equipment is constructed more convenient, and weldering nail connector is widely used in composite structure.
In combination beam bending resistance analysis, weldering nail connector is subjected only to shearing action, thus current research is mainly concentrated and ground
Study carefully the shear behavior of shear connector.The design formula of its shear-carrying capacity is also given in some codes and standards at present.
However when combination beam bears torque or bears at Local Loads or negative moment of backing plate, connector can bear pulling capacity and shearing
The collective effect of power.Composite bridge girder gradually tends to using flute profile wide cut list main beam structure at present, and connector will be born
The biggish drawing active force generated due to floorings transverse curvature.Equally in the engaging portion of hybrid beam and combination Sarasota portion
Position, connector can also bear to draw, cut compound action.If only considering the shearing resistance stress of weldering nail connector, it will cause safety
Hidden danger.
Summary of the invention
In order to overcome the problems, such as to have it is above-mentioned be likely to occur, the present invention proposes a kind of steel-concrete group that Novel tensile is cut
Girder construction and its manufacture craft are closed, with an improved the structure types of conventional composite beam, under the effect of multiaxis external load, this kind combination
Beam has preferable shearing resistance, anti-pulling capacity, so that girder steel and concrete slab is formed an organic whole, can be applied to various
In composite beam bridge engineering.
The technical solution adopted by the present invention to solve the technical problems is:
A kind of Steel-concrete Combined Beam Structures that Novel tensile is cut, including concrete left plate, concrete right panel, girder steel, limit
Positioning device processed, screw rod, upper fixed device, lower fixed device, connector, shearing-resistant member, top longitudinal reinforcement, lower part longitudinal reinforcement
And grouting material, the shearing-resistant member are connected to girder steel top flange upper surface, the limitation positioning device is connected to the steel
The edge of beam top flange, the limitation positioning device and girder steel top flange upper surface form open cavity；The concrete
Left plate and the concrete right panel by the screw rod, fixed device, address lower fixed device and connected with connector
In on the girder steel；The concrete left plate, concrete right panel, connector and limitation positioning device pass through the grouting material material
It is bonded to and the Steel-concrete Combined Beam Structures that Novel tensile is cut is integrally formed.
Further, the concrete left plate includes concrete slab and the upper left quarter reinforcing bar and the lower left quarter reinforcing bar；
The upper left quarter reinforcing bar and lower left quarter reinforcing bar are a part of upper lateral reinforcing bar and lower, transverse steel in the concrete slab arrangement of reinforcement
The reinforcing bar end of the sponson of muscle, the upper left quarter reinforcing bar is downward, and the screw thread steel is arranged at end reinforced place；
The concrete right panel includes concrete slab and the upper right quarter reinforcing bar and the right lower quadrant reinforcing bar；The upper right
Portion's reinforcing bar and right lower quadrant reinforcing bar are the overhanging of a part of upper lateral reinforcing bar and lower, transverse reinforcing bar in the concrete slab arrangement of reinforcement
The reinforcing bar end of part, the upper right quarter reinforcing bar is downward, and the screw thread steel is arranged at end reinforced place；
The upper left quarter reinforcing bar and the interlaced arrangement of upper right quarter reinforcing bar, the screw thread steel of the upper left quarter reinforcing bar and one
The threaded upper ends of connector connect, and the screw thread steel of the upper right quarter reinforcing bar is connect with the threaded upper ends of another connector.
The upper left quarter reinforcing bar includes reinforcing bar and screw thread steel, and the upper left quarter reinforcing bar forms " L " by 90 ° of cold bending processes
Shape, reinforcing bar end is downward, makes the screw thread steel at end reinforced place, cold bending process is constructed by relevant criterion；
After the lower left quarter reinforcing bar is by 180 ° of cold bending processes, end reinforced at inverted " u " font, steel bar end is downward.
The upper right quarter reinforcing bar includes reinforcing bar and screw thread steel, and the upper right quarter reinforcing bar forms " L " by 90 ° of cold bending processes
Shape, reinforcing bar end is downward, makes the screw thread steel at end reinforced place, cold bending process is constructed by relevant criterion；
Preferential, it is end reinforced at inverted " u " font, steel bar end after the right lower quadrant reinforcing bar is by 180 ° of cold bending processes
Downwards, cold bending process is constructed by relevant criterion；
Further, the girder steel screw hole passed through for the screw rod is opened up on the girder steel, the girder steel screw hole includes the first steel
Beam screw hole and the second girder steel screw hole, the first girder steel screw hole and upper left quarter reinforcing bar drooping section aligned in position, second girder steel
Screw hole and upper right quarter reinforcing bar drooping section aligned in position.
The connector is for connecting the upper left quarter reinforcing bar or the upper right quarter reinforcing bar and the screw rod, the inner hole spiral shell
Line is matched with the screw thread steel of the upper left quarter reinforcing bar or upper right quarter reinforcing bar lower end, the screw rod and described solid
Device and the lower fixed device composition attachment device are determined, by the connector by the upper left quarter reinforcing bar or the upper right
Portion's reinforcing bar is connected in the girder steel.
There are screw thread in the screw rod top and bottom, and screw thread is identical, and screw thread is matched with the connector internal control screw thread, described
Upper fixed device and the lower fixed device include a gasket and a nut, the screw thread on nut and the screw rod
Match.
Preferential, the concrete slab preferentially uses strong concrete.
Preferential, the girder steel uses alloy steel products corrosion-resistant, resistant to high temperature.
The first girder steel screw hole and the second girder steel screwhole diameter are 1~2mm bigger than the screw diameter.
Further, the limitation positioning device is set to girder steel top flange upper surface by way of bonding or welding
Open cavity is formed between all edges, with girder steel top flange upper surface.
Preferential, the limitation positioning device preferentially uses high molecular material, and material identical with the girder steel can also be used
The height of matter, the limitation positioning device is 10mm~30mm.
Further, the shearing-resistant member is set to girder steel top flange upper surface by welding procedure.
Preferential, the shearing-resistant member preferentially uses peg, can also be using forms such as bolt, perforated panel, channel steels.
Further, the material of the top longitudinal reinforcement and the lower part longitudinal reinforcement respectively with the concrete left plate and
The upper and lower part longitudinal reinforcement of the concrete right panel is identical, and the globality of seam crossing can be improved.
Further, the grouting material preferentially uses epoxy resin mortar, can also use self-compacting concrete.
Further, the concrete left plate contacted when being prefabricated in the factory with the grouting material and the concrete are right
Plate part should use grout stop belt.
Preferential, the product that the grout stop belt preferentially uses surface more delicate.
A kind of manufacture craft for the Steel-concrete Combined Beam Structures that Novel tensile is cut, the manufacture craft include following step
It is rapid:
(1) prefabrication
1.1) concrete material, bar material and the grout stop belt of production prefabricated board are got out；
1.2) according to concrete slab construction assembling reinforcement in drawing and production template, the concrete slab contacted with grouting material
Part should use grout stop belt；
1.3) the overhanging top of two concrete slabs docked, lower rebar are at staggered；By overhanging upper of concrete slab
Portion's reinforcing bar and lower part carry out anchoring processing, and upper reinforcement forms L shape shape by 90 ° of cold bending processes, and reinforcing bar end is downward, reinforcing bar end
Screw thread steel is made at portion；After lower rebar is by 180 ° of cold bending processes, end reinforced at inverted " u " font, steel bar end is downward,
Cold bending process is constructed by relevant criterion；
1.4) casting concrete, maintenance and demoulding, the grout stop belt for concave-convex surface rule of tearing are formed all concrete prefabricated
Plate；
1.5) steel plate of production girder steel embryo material is got out, steel plate is cut, and girder steel is formed by welding；
1.6) girder steel screw hole is opened on girder steel top flange, girder steel screw hole is aligned with upper reinforcement pendant position；
1.7) processing of rust removing is carried out to girder steel upper surface, limitation positioning device is set on girder steel top flange upper surface periphery,
Limit the cavity that upper opening is formed between positioning device and girder steel top flange upper surface；
1.8) shear connector is arranged by weld seam on the surface of girder steel；
1.9) steel beam surface and shear connector surface carry out blasting treatment at abutment joint, to other positions carry out anti-corrosion and
Fire prevention processing；
1.10) make or buy screw rod, upper fixed device, lower fixed device and limitation positioning device；
(2) on-site consolidation
2.1) prefabricated girder steel and concrete slab are transported to live stacking, it is to be assembled；
2.2) by steel girder erection on the support of engineering site；
2.3) upper reinforcement drooping section and screw rod upper end are linked together by connector with torque wrench, needs to reach
Torque as defined in reinforcing bar connector related specifications, and the fixed device in top is sleeved on the screw rod, by the way of being fixed temporarily, make
The fixed device in top is bonded on screw rod；
2.4) precast slab is mounted on girder steel by lifting, precast slab and limitation positioning device are direct
Contact guarantees that the lower end of every screw rod passes through the girder steel screw hole on girder steel, and arrange to it；
2.5) the overhanging reinforcing bar of top longitudinal reinforcement and lower part longitudinal reinforcement and concrete slab is connected in such a way that plate is pricked
Entirety is connected into,；
2.6) after monolithic stability, the fixed device in top is twisted, guarantees the fixed device in top and girder steel top flange upper surface
It is adjacent to；
2.7) deployed grouting material is perfused to formation seam crossing between girder steel and prefabricated board；
2.8) after to be solidified, lower fastening device is passed through into screw rod lower part, and tighten, and seal using adhesive material, prevented
Only corrode.
Beneficial effects of the present invention are mainly manifested in:
(1) the overhanging upper reinforcement of concrete slab is curved in 90 ° downward using cold bending process, and is connected using connector and screw rod
It is connected into entirety, screw rod is passed through to the hole opened up on girder steel, is connected on girder steel, is poured by upper fixed device and lower fixed device
After building grouting material solidification, the connection between concrete slab and girder steel is more firm, when shearing, torsion, transverse bending moment or support
When hogging moment is acted on steel-concrete composite beam, upper reinforcement lower horizontal section, even machine and screw rod top can play shearing resistance work
With the shearing that each operating condition is generated in composite structure interface can be resisted；When various operating conditions make to generate between concrete and girder steel
Whens pulling force or torque etc., it is girder steel and coagulation that upper reinforcement lower horizontal section, even machine and screw rod, which can play the role of resistance to plucking or antitorque,
Be missing the state for guaranteeing to fit closely between native plate.
(2) structure is greatly improved by shearing-resistant member, screw rod and upper reinforcement downward bent part point and the common shearing resistance of epoxy resin mortar
The shear-carrying capacity of existing combination beam scheme.
(3) when precast slab, setting has concavo-convex grout stop belt on being located at joint concrete template, makes seam
The prefabricated board rule of surface at place is concavo-convex, cooperation epoxy resin mortar superpower resistance to compression, shear resistance, compatibility of deformation ability and antistripping
Performance makes to form effective connection between seam crossing epoxy resin mortar and prefabricated board, new and old block junction can be prevented in outer lotus
Load effect is lower to there is cracking situation.
(4) one atrium of new city, prefabricated board are set up in limitation between the limitation positioning device being arranged on girder steel and girder steel
On positioning device, when epoxy resin mortar is perfused, epoxy resin mortar can fill up the aperture chamber, make between girder steel and concrete prefabricated board
Connection gapless.On the one hand, the effect that can play waterproof prevents from occurring between girder steel top flange plate upper surface and prefabricated board
The case where coming to nothing avoids girder steel upper surface and shear connector from corroding in a humidity environment, improves steel-concrete combination
The durability of beam bridge；On the other hand, this between girder steel and concrete layer epoxy resin mortar can be worked together with shear connector,
It resists and shears for structure, and shear connector suffered fatigue damage at work can be alleviated.
Detailed description of the invention
Fig. 1 is a kind of knocked-down positive cut-away illustration of Steel-concrete Combined Beam Structures that Novel tensile is cut.
Fig. 2 is a kind of positive cut-away illustration that the Steel-concrete Combined Beam Structures that Novel tensile is cut do not pour.
Fig. 3 is a kind of A-A sectional view of Steel-concrete Combined Beam Structures that Novel tensile is cut.
Fig. 4 is a kind of perspective view of the explosion of Steel-concrete Combined Beam Structures that Novel tensile is cut.
Wherein, 11 be concrete left plate, and 111 be upper left quarter reinforcing bar, and 112 be lower left quarter reinforcing bar, and 12 be concrete right panel,
121 be upper right quarter reinforcing bar, and 122 be upper right quarter reinforcing bar, and 13 be screw thread steel, and 2 be girder steel, and 211 be the first girder steel screw hole, and 212 are
Second girder steel screw hole, 3 are limited positioning device processed, and 4 be screw rod, and 41 be upper fixed device, and 42 be lower fixed device, 5 connectors,
6 be shearing-resistant member, and 7 be top longitudinal reinforcement, and 8 be lower part longitudinal reinforcement, and 9 be grouting material, and 10 be grout stop belt.
Specific embodiment
The invention will be further described below in conjunction with the accompanying drawings.
Referring to Fig.1~Fig. 4, a kind of Steel-concrete Combined Beam Structures that Novel tensile is cut, including it is concrete left plate 11, mixed
Solidifying soil right panel 12, girder steel 2, limitation positioning device 3, screw rod 4, upper fixed device 41, lower fixed device 42, connector 5, shearing-resistant member
6, top longitudinal reinforcement 7, lower part longitudinal direction steel 8 and grouting material 9.Shearing-resistant member 6 is connected on 2 top flange of girder steel by welding manner
Surface, limitation positioning device 3 is by bonding or is welded to connect in the edge of 2 top flange of girder steel, with 2 top flange upper surface shape of girder steel
At open cavity；Concrete left plate 11 and concrete right panel 12 pass through screw rod 4, upper fixed device 41 and lower 42 and of fixed device
Connector 5 is connected on girder steel 2；Concrete left plate 11, concrete right panel 12 and be provided with connector 6 and limitation positioning device 3
The Steel-concrete Combined Beam Structures integral, formation Novel tensile is cut are bonded by grouting material material 9.
Concrete left plate 11 includes concrete and upper left quarter reinforcing bar 111 and lower left quarter reinforcing bar 112, and concrete slab is preferentially adopted
Use strong concrete.
Upper left quarter reinforcing bar 111 and lower left quarter reinforcing bar 112 be in 11 arrangement of reinforcement of concrete left plate a part of upper lateral reinforcing bar and
The sponson of lower, transverse reinforcing bar, upper reinforcement include reinforcing bar and screw thread steel 13；Upper left quarter reinforcing bar 111 includes reinforcing bar and steel
Muscle screw thread 13, upper left quarter reinforcing bar 111 form L shape shape by 90 ° of cold bending processes, and reinforcing bar end is downward, make at end reinforced place
Screw thread steel 13, cold bending process are constructed by relevant criterion；Lower left quarter reinforcing bar 112 by after 180 ° of cold bending processes, it is end reinforced at
Inverted " u " font, steel bar end is downward, and cold bending process is constructed by relevant criterion.
Concrete right panel 12 includes concrete and upper right quarter reinforcing bar 121 and right lower quadrant reinforcing bar 122, and concrete slab is preferentially adopted
Use strong concrete；Upper left quarter reinforcing bar 121 and lower left quarter reinforcing bar 122 are a part of upper lateral in 12 arrangement of reinforcement of concrete right panel
The sponson of reinforcing bar and lower, transverse reinforcing bar, upper reinforcement include reinforcing bar and screw thread steel 13；Upper right quarter reinforcing bar 121 includes steel
Muscle and screw thread steel, upper right quarter reinforcing bar 121 form L shape shape by 90 ° of cold bending processes, and reinforcing bar end is downward, at end reinforced place
Screw thread steel is made, cold bending process is constructed by relevant criterion；It is end reinforced after right lower quadrant reinforcing bar 122 is by 180 ° of cold bending processes
At inverted " u " font, steel bar end is downward, and cold bending process is constructed by relevant criterion.
Girder steel screw hole is opened up on girder steel 2, girder steel uses alloy steel products corrosion-resistant, resistant to high temperature, girder steel spiral shell, including the first steel
Beam screw hole 211 and the second girder steel screw hole 212, the first girder steel screw hole 211 and 111 drooping section aligned in position of upper left quarter reinforcing bar, second
Girder steel screw hole 212 and 121 drooping section aligned in position of upper right quarter reinforcing bar, 212 diameter of the first girder steel screw hole 211 and the second girder steel screw hole
It is 2mm bigger than screw diameter；Limitation positioning device 3 is set to 2 top flange upper surface of girder steel by way of bonding or welding
Open cavity is formed between all edges, with 2 top flange upper surface of girder steel；Positioning device 3 is limited using identical with girder steel 3
Material, the height of limitation positioning device 3 are 30mm.
Connector 5 is for connecting upper left quarter reinforcing bar 111 or upper right quarter reinforcing bar 121 and screw rod 4；Connector 3 is using high-intensitive
Material, inner hole thread are matched with the screw thread steel 13 of 121 lower end of upper left quarter reinforcing bar 111 or upper right quarter reinforcing bar.
Screw rod 4 and upper fixed device 41 and lower fixed device 42 form attachment device, by connector 5 by upper left quarter steel
Muscle 111 or upper right quarter reinforcing bar are connected in girder steel 121, and there are screw thread in 4 top and bottom of screw rod, and screw thread is identical, screw thread with connect
The matching of 5 internal control screw thread of device, screw rod 4 use high-strength material；Upper fixed device 41 and lower fixed device 42 include a gasket
With a nut, nut is matched with the screw thread on screw rod, is all made of high-strength material and is made
Shearing-resistant member 6 is set to 2 top flange upper surface of girder steel by welding procedure；Shearing-resistant member 6 preferentially uses peg form；On
The material of portion's longitudinal reinforcement 7 and lower part longitudinal reinforcement 8 respectively with concrete left plate 11 and concrete right panel 12 top and under
Portion's longitudinal reinforcement is identical, and grouting material 9 uses epoxy resin mortar, when being prefabricated in the factory, the concrete left plate that contacts with grouting material 9
11 and 12 part of concrete right panel should use grout stop belt 10.
A kind of manufacture craft for the Steel-concrete Combined Beam Structures that Novel tensile is cut, comprising the following steps:
(1) prefabrication
1.1) concrete material, bar material, the grout stop belt of production prefabricated board are got out；
1.2) according to concrete slab construction assembling reinforcement in drawing and production template, the concrete slab contacted with grouting material
Part should use grout stop belt；
1.3) the overhanging top of two concrete slabs docked, lower rebar are at staggered；By overhanging upper of concrete slab
Portion's reinforcing bar and lower part carry out anchoring processing, and upper reinforcement forms L shape shape by 90 ° of cold bending processes, and reinforcing bar end is downward, reinforcing bar end
Screw thread steel is made at portion；After lower rebar is by 180 ° of cold bending processes, end reinforced at inverted " u " font, steel bar end is downward,
Cold bending process is constructed by relevant criterion；
1.4) casting concrete, maintenance and demoulding, the grout stop belt for concave-convex surface rule of tearing are formed all concrete prefabricated
Plate；
1.5) steel plate of production girder steel embryo material is got out, steel plate is cut, and " work " word or " H " are formed by welding
Or " T " or other shapes of girder steel；
1.6) girder steel screw hole is opened on girder steel top flange, girder steel screw hole is aligned with upper reinforcement pendant position；
1.7) processing of rust removing is carried out to girder steel upper surface, limitation positioning device is set on girder steel top flange upper surface periphery,
Limit the cavity that upper opening is formed between positioning device and girder steel top flange upper surface；
1.8) shear connector is arranged by weld seam on the surface of girder steel；
1.9) steel beam surface and shear connector surface carry out blasting treatment at abutment joint, to other positions carry out anti-corrosion and
Fire prevention processing；
1.10) make or buy screw rod, upper fixed device, lower fixed device and limitation positioning device；
(2) on-site consolidation
2.1) prefabricated girder steel and concrete slab are transported to scene, rational stacking is to be assembled；
2.2) by steel girder erection on the support of engineering site；
2.3) upper reinforcement drooping section and screw rod upper end are linked together by connector with torque wrench, needs to reach
Torque as defined in reinforcing bar connector related specifications, and the fixed device in top is sleeved on the screw rod, by the way of being fixed temporarily, make
The fixed device in top is bonded on screw rod；
2.4) precast slab is mounted on girder steel by lifting, precast slab and limitation positioning device are direct
Contact guarantees that the lower end of every screw rod passes through the girder steel screw hole on girder steel, and arrange to it；
2.5) the overhanging reinforcing bar of top longitudinal reinforcement and lower part longitudinal reinforcement and concrete slab is connected in such a way that plate is pricked
Entirety is connected into,；
2.6) after monolithic stability, the fixed device in top is twisted, guarantees the fixed device in top and girder steel top flange upper surface
It is adjacent to；
2.7) deployed grouting material (epoxy resin mortar) is perfused to formation seam crossing between girder steel and prefabricated board；
2.8) after to be solidified, lower fastening device is passed through into screw rod lower part, and tighten, and seal using adhesive material, prevented
Only corrode.
Claims (10)
1. a kind of Steel-concrete Combined Beam Structures that Novel tensile is cut, which is characterized in that the combined beam structure includes concrete
Left plate, concrete right panel, girder steel, limitation positioning device, screw rod, upper fixed device, lower fixed device, connector, shearing-resistant member, on
Portion's longitudinal reinforcement, lower part longitudinal reinforcement and grouting material, the shearing-resistant member are connected to girder steel top flange upper surface, the limit
Positioning device processed is connected to the edge of the girder steel top flange, the limitation positioning device and girder steel top flange upper surface shape
At open cavity；The concrete left plate and the concrete right panel pass through the screw rod, fixed device, address down
Fixed device and connector are connected on the girder steel；The concrete left plate, concrete right panel, connector and limitation positioning dress
It sets and the Steel-concrete Combined Beam Structures that Novel tensile is integrally formed and cuts is bonded to by the grouting material material.
2. a kind of Steel-concrete Combined Beam Structures that Novel tensile is cut as described in claim 1, which is characterized in that described mixed
Solidifying soil left plate includes concrete slab and the upper left quarter reinforcing bar and the lower left quarter reinforcing bar；The upper left quarter reinforcing bar and lower left quarter
Reinforcing bar is the sponson of a part of upper lateral reinforcing bar and lower, transverse reinforcing bar in the concrete slab arrangement of reinforcement, the upper left quarter
The reinforcing bar end of reinforcing bar is downward, and the screw thread steel is arranged at end reinforced place；
The concrete right panel includes concrete slab and the upper right quarter reinforcing bar and the right lower quadrant reinforcing bar；The upper right quarter steel
Muscle and right lower quadrant reinforcing bar are the sponson of a part of upper lateral reinforcing bar and lower, transverse reinforcing bar in the concrete slab arrangement of reinforcement,
The reinforcing bar end of the upper right quarter reinforcing bar is downward, and the screw thread steel is arranged at end reinforced place；
The upper left quarter reinforcing bar and the interlaced arrangement of upper right quarter reinforcing bar, the screw thread steel of the upper left quarter reinforcing bar are connect with one
The threaded upper ends of device connect, and the screw thread steel of the upper right quarter reinforcing bar is connect with the threaded upper ends of another connector.
3. a kind of Steel-concrete Combined Beam Structures that Novel tensile is cut as claimed in claim 2, which is characterized in that the left side
Upper reinforcement includes reinforcing bar and screw thread steel, and the upper left quarter reinforcing bar forms L shape shapes by 90 ° of cold bending processes, reinforcing bar end to
Under, the screw thread steel is made at end reinforced place, cold bending process is constructed by relevant criterion；
After the lower left quarter reinforcing bar is by 180 ° of cold bending processes, end reinforced at inverted " u " font, steel bar end is downward.
4. a kind of Steel-concrete Combined Beam Structures that Novel tensile is cut as claimed in claim 2, which is characterized in that the right side
Upper reinforcement includes reinforcing bar and screw thread steel, and the upper right quarter reinforcing bar forms L shape shapes by 90 ° of cold bending processes, reinforcing bar end to
Under, the screw thread steel is made at end reinforced place, cold bending process is constructed by relevant criterion；
After the right lower quadrant reinforcing bar is by 180 ° of cold bending processes, end reinforced at inverted " u " font, steel bar end is downward, clod wash work
Skill is constructed by relevant criterion.
5. the Steel-concrete Combined Beam Structures that a kind of Novel tensile as described in one of Claims 1 to 4 is cut, which is characterized in that
The girder steel screw hole passed through for the screw rod is opened up on the girder steel, the girder steel screw hole includes the first girder steel screw hole and the second girder steel
Screw hole, the first girder steel screw hole and upper left quarter reinforcing bar drooping section aligned in position, the second girder steel screw hole and upper right quarter reinforcing bar
Drooping section aligned in position.
6. the Steel-concrete Combined Beam Structures that a kind of Novel tensile as described in one of Claims 1 to 4 is cut, which is characterized in that
The connector for connecting the upper left quarter reinforcing bar or the upper right quarter reinforcing bar and the screw rod, the inner hole thread with it is described
Upper left quarter reinforcing bar or the matching of the screw thread steel of upper right quarter reinforcing bar lower end, the screw rod and fixed device with
And the lower fixed device forms attachment device, by the connector by the upper left quarter reinforcing bar or the upper right quarter reinforcing bar in
The girder steel is connected.
7. a kind of Steel-concrete Combined Beam Structures that Novel tensile is cut as claimed in claim 6, which is characterized in that the spiral shell
There are screw thread in bar top and bottom, and screw thread is identical, and screw thread is matched with the connector internal control screw thread, fixed device and institute
Stating lower fixed device includes a gasket and a nut, and nut is matched with the screw thread on the screw rod.
8. the Steel-concrete Combined Beam Structures that a kind of Novel tensile as described in one of Claims 1 to 4 is cut, which is characterized in that
The limitation positioning device is set to all edges of girder steel top flange upper surface by way of bonding or welding, with institute
It states and forms open cavity between the upper surface of girder steel top flange.
9. the Steel-concrete Combined Beam Structures that a kind of Novel tensile as described in one of Claims 1 to 4 is cut, which is characterized in that
The shearing-resistant member is set to girder steel top flange upper surface by welding procedure.
10. a kind of a kind of manufacture craft for the Steel-concrete Combined Beam Structures that Novel tensile is cut as described in claim 1,
Be characterized in that, the manufacture craft the following steps are included:
(1) prefabrication
1.1) concrete material, bar material and the grout stop belt of production prefabricated board are got out；
1.2) according to concrete slab construction assembling reinforcement in drawing and production template, the concrete slab part contacted with grouting material
Grout stop belt should be used；
1.3) the overhanging top of two concrete slabs docked, lower rebar are at staggered；By the overhanging upper steel of concrete slab
Muscle and lower part carry out anchoring processing, and upper reinforcement forms L shape shape by 90 ° of cold bending processes, and reinforcing bar end is downward, end reinforced place
Make screw thread steel；After lower rebar is by 180 ° of cold bending processes, end reinforced at inverted " u " font, steel bar end is downward, clod wash
Technique is constructed by relevant criterion；
1.4) casting concrete, maintenance and demoulding, the grout stop belt for concave-convex surface rule of tearing, form all concrete prefabricated boards；
1.5) steel plate of production girder steel embryo material is got out, steel plate is cut, and girder steel is formed by welding；
1.6) girder steel screw hole is opened on girder steel top flange, girder steel screw hole is aligned with upper reinforcement pendant position；
1.7) processing of rust removing is carried out to girder steel upper surface, limitation positioning device, limitation is set on girder steel top flange upper surface periphery
The cavity of upper opening is formed between positioning device and girder steel top flange upper surface；
1.8) shear connector is arranged by weld seam on the surface of girder steel；
1.9) steel beam surface and shear connector surface carry out blasting treatment at abutment joint, carry out anti-corrosion and fire prevention to other positions
Processing；
1.10) make or buy screw rod, upper fixed device, lower fixed device and limitation positioning device；
(2) on-site consolidation
2.1) prefabricated girder steel and concrete slab are transported to live stacking, it is to be assembled；
2.2) by steel girder erection on the support of engineering site；
2.3) upper reinforcement drooping section and screw rod upper end are linked together by connector with torque wrench, needs to reach reinforcing bar
Torque as defined in connector related specifications, and the fixed device in top is sleeved on the screw rod, by the way of being fixed temporarily, make top
Fixed device is bonded on screw rod；
2.4) precast slab is mounted on girder steel by lifting, precast slab directly connects with limitation positioning device
Touching guarantees that the lower end of every screw rod passes through the girder steel screw hole on girder steel, and arrange to it；
2.5) the overhanging reinforcing bar of top longitudinal reinforcement and lower part longitudinal reinforcement and concrete slab is connected into such a way that plate is pricked
It is whole,；
2.6) after monolithic stability, the fixed device in top is twisted, guarantees that the fixed device in top is adjacent to girder steel top flange upper surface；
2.7) deployed grouting material is perfused to formation seam crossing between girder steel and prefabricated board；
2.8) after to be solidified, lower fastening device is passed through into screw rod lower part, and tighten, and seal using adhesive material, prevents from becoming rusty
Erosion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910878578.XA CN110528778B (en) | 2019-09-18 | 2019-09-18 | Novel tensile shear steel-concrete composite beam structure and manufacturing process thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910878578.XA CN110528778B (en) | 2019-09-18 | 2019-09-18 | Novel tensile shear steel-concrete composite beam structure and manufacturing process thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110528778A true CN110528778A (en) | 2019-12-03 |
| CN110528778B CN110528778B (en) | 2024-03-12 |
Family
ID=68668932
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910878578.XA Active CN110528778B (en) | 2019-09-18 | 2019-09-18 | Novel tensile shear steel-concrete composite beam structure and manufacturing process thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110528778B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110965700A (en) * | 2019-12-19 | 2020-04-07 | 华侨大学 | Steel-concrete composite beam connected by adopting studs, epoxy mortar and bolts |
| CN113585618A (en) * | 2021-06-11 | 2021-11-02 | 中建科技（福州）有限公司 | Precast concrete composite beam and construction method thereof |
| CN114892499A (en) * | 2022-05-11 | 2022-08-12 | 北京工业大学 | Prefabricated assembly type steel-concrete composite beam bridge shear connector and construction method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20180002925A1 (en) * | 2015-02-16 | 2018-01-04 | Yong Keun KWON | Composite beam having truss reinforcement embedded in concrete |
| CN107672018A (en) * | 2017-10-31 | 2018-02-09 | 福州大学 | A kind of steel precast concrete combination beam and preparation method thereof |
| CN108801764A (en) * | 2018-05-04 | 2018-11-13 | 中国矿业大学 | Horizontal and multi-point partial vertical load multi-purpose stand and implementation can be transmitted |
| CN109469259A (en) * | 2018-09-12 | 2019-03-15 | 中国建筑标准设计研究院有限公司 | The two-sided compound action beam of exchangeable part assembled steel-concrete |
| CN110080462A (en) * | 2019-05-05 | 2019-08-02 | 湘潭大学 | A kind of detachably prefabricated assembled steel-concrete composite beam and its construction method |
| CN211114417U (en) * | 2019-09-18 | 2020-07-28 | 苏州科技大学 | Novel steel-concrete composite beam structure of tensile shear |
-
2019
- 2019-09-18 CN CN201910878578.XA patent/CN110528778B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20180002925A1 (en) * | 2015-02-16 | 2018-01-04 | Yong Keun KWON | Composite beam having truss reinforcement embedded in concrete |
| CN107672018A (en) * | 2017-10-31 | 2018-02-09 | 福州大学 | A kind of steel precast concrete combination beam and preparation method thereof |
| CN108801764A (en) * | 2018-05-04 | 2018-11-13 | 中国矿业大学 | Horizontal and multi-point partial vertical load multi-purpose stand and implementation can be transmitted |
| CN109469259A (en) * | 2018-09-12 | 2019-03-15 | 中国建筑标准设计研究院有限公司 | The two-sided compound action beam of exchangeable part assembled steel-concrete |
| CN110080462A (en) * | 2019-05-05 | 2019-08-02 | 湘潭大学 | A kind of detachably prefabricated assembled steel-concrete composite beam and its construction method |
| CN211114417U (en) * | 2019-09-18 | 2020-07-28 | 苏州科技大学 | Novel steel-concrete composite beam structure of tensile shear |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110965700A (en) * | 2019-12-19 | 2020-04-07 | 华侨大学 | Steel-concrete composite beam connected by adopting studs, epoxy mortar and bolts |
| CN113585618A (en) * | 2021-06-11 | 2021-11-02 | 中建科技（福州）有限公司 | Precast concrete composite beam and construction method thereof |
| CN114892499A (en) * | 2022-05-11 | 2022-08-12 | 北京工业大学 | Prefabricated assembly type steel-concrete composite beam bridge shear connector and construction method |
| CN114892499B (en) * | 2022-05-11 | 2024-04-26 | 北京工业大学 | Prefabricated assembled steel-concrete composite girder bridge shearing-resistant connecting piece and construction method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110528778B (en) | 2024-03-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110528778A (en) | A kind of Steel-concrete Combined Beam Structures that Novel tensile is cut and its manufacture craft | |
| CN206917085U (en) | A kind of prefabricated overlapping steel framed concrete beam | |
| CN105672116B (en) | Prefabricated assembled steel-concrete composite beam structure | |
| CN106400954A (en) | Steel beam-steel pipe concrete column joint based on damage control concept | |
| CN107313540A (en) | The anti-buckling assembled combination beam of fire prevention and construction method | |
| CN102086677A (en) | Prefabricated reinforced concrete beam and connection joint of reinforced concrete column and beam | |
| CN101936054A (en) | Steel truss web combined PC beam and construction method thereof | |
| CN106368348B (en) | A kind of superposed type compound shear wall with two benches stress characteristic | |
| CN209457194U (en) | Steel ribs dislocation dock shear wall vertical connection structure | |
| CN106223212A (en) | A kind of reinforcement means suffering fired damage bridge | |
| CN103643634B (en) | Concrete-filled steel tubes arch bridge arch springing anchor structure | |
| CN106499211B (en) | Newly-increased outrigger frame Baogang anchor daraf(reciprocal of farad) structure | |
| CN110541356B (en) | Manufacturing process of steel-concrete composite beam bridging joint structure | |
| CN104032832A (en) | Post-tensioning method prestress bamboo-wood framework | |
| KR100609184B1 (en) | Joint Structure of Precast Concrete Beam and Column Unit | |
| KR20100004718U (en) | Connector for bar truss with slab form | |
| CN106906749B (en) | The construction method of full assembled steel-concrete combined structure box beam | |
| JP3999114B2 (en) | Reinforcing method and structure of notched corner of bridge main girder | |
| CN211114417U (en) | Novel steel-concrete composite beam structure of tensile shear | |
| KR101358878B1 (en) | Reinforcement member and girder using the same | |
| CN201778436U (en) | Hybrid polycarbonate (PC) girder with steel truss webs | |
| CN110359353A (en) | A kind of Steel-concrete Combined Beam Structures | |
| CN213951909U (en) | Tubular connecting piece suitable for steel-concrete composite structure | |
| CN211492171U (en) | Pedestal suitable for post-tensioning method precast box girder | |
| CN109208756B (en) | Fabricated shear wall and manufacturing method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |