CN108330823B - Assembled steel reinforced concrete composite beam bridge floorings longitudinal joint connecting structure and construction method - Google Patents
Assembled steel reinforced concrete composite beam bridge floorings longitudinal joint connecting structure and construction method Download PDFInfo
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- CN108330823B CN108330823B CN201810135992.7A CN201810135992A CN108330823B CN 108330823 B CN108330823 B CN 108330823B CN 201810135992 A CN201810135992 A CN 201810135992A CN 108330823 B CN108330823 B CN 108330823B
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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
- E01D19/00—Structural or constructional details of bridges
- E01D19/06—Arrangement, construction or bridging of expansion joints
- E01D19/067—Flat continuous joints cast in situ
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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
- 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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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
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- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention discloses a kind of assembled steel reinforced concrete composite beam bridge floorings longitudinal joint connecting structure, longitudinal joint filler material between ongitudinal recess including being cast in two pieces of laterally adjacent prefabricated steel reinforced concrete composite beam bridge panels along longitudinal direction and the bolt connection for being arranged in ongitudinal recess and being separately connected two pieces of laterally adjacent prefabricated steel reinforced concrete composite beam bridge panels, the system of being bolted includes the billet of the pre-embedded bolt being embedded in corresponding prefabricated steel reinforced concrete composite beam bridge panel respectively and the pre-embedded bolt in the adjacent prefabricated steel reinforced concrete composite beam bridge panel of lateral connection two, longitudinal joint filler material is cast on billet and fills the end beyond billet of pre-embedded bolt.The present invention also provides a kind of construction methods of assembled steel reinforced concrete composite beam bridge floorings longitudinal joint connecting structure.The present invention is bolted system using steel plate and pre-embedded bolt composition, and connecting structure is simple, intensity is high, bearing capacity is big, highly reliable, easy construction；Component makes in factory, is not affected by the external environment, and construction quality can guarantee.
Description
Technical field
The present invention relates to assembled steel reinforced concrete composite beam bridge floorings longitudinal joint interconnection technique fields, in particular to a kind of assembled
Steel reinforced concrete composite beam bridge floorings longitudinal joint connecting structure and construction method.
Background technique
Assembled steel reinforced concrete composite beam bridge is made of steel girder and concrete slab, has given full play to steel and concrete material
Expect respective mechanical property.Steel girder and the concrete slab concentration pre-casting in factory, transport to construction site are spelled
Dress, then pouring structure seam is to form overall structure and continuous system.
To reduce the lifting weight of steel reinforced concrete combination beam prefabricated component and being readily transported, assembled steel reinforced concrete composite beam bridge generally exists
Longitudinal seam is set on the floorings of adjacent two girder middle, and splicing prefabricated components completion after-pouring joint concrete forms whole
Body.
Currently, common floorings longitudinal joint connecting structure, mostly uses prefabricated bridge protruding bar to add and pours and prefabricated bridge
Mode of the panel with the concrete of label.Prefabricated bridge protruding bar is generally annular in seam or form of straight lines, only ties up
When pricking or is non-treated, seam connection reliability is insufficient, is easy to produce disease.According to reinforcement welding, then site welding workload
Greatly, and by site operation environment it is affected.
Therefore, it is really necessary to develop a kind of new assembled steel reinforced concrete composite beam bridge floorings longitudinal joint connecting structure, to overcome
The problem of above-mentioned longitudinal seam connects.
Summary of the invention
The object of the present invention is to provide a kind of assembled steel reinforced concrete composite beam bridge floorings longitudinal joint connecting structure, Neng Goubao
Demonstrate,prove the intensity and reliability of longitudinal joint connection.
To achieve the above object, the assembled steel reinforced concrete composite beam bridge floorings longitudinal joint connecting structure designed by the present invention includes
It the longitudinal joint filler material that is cast between the ongitudinal recess of two pieces of laterally adjacent prefabricated steel reinforced concrete composite beam bridge panels along longitudinal direction and sets
Set in the ongitudinal recess and be separately connected two pieces of laterally adjacent prefabricated steel reinforced concrete composite beam bridge panels bolt connection
System, the system that is bolted includes the pre-embedded bolt being embedded in the corresponding prefabricated steel reinforced concrete composite beam bridge panel respectively
And the billet of the pre-embedded bolt in the adjacent prefabricated steel reinforced concrete composite beam bridge panel of lateral connection two, the longitudinal joint are filled out
Charge is cast on the billet and fills the end beyond the billet of the pre-embedded bolt.
Preferably, the transversal cross-section of the ongitudinal recess is the band form of grooves with upper angle and inferior horn, described
The suitable bridge of the upper angular prefabricated steel reinforced concrete composite beam bridge panel sunken inside, the upper surface at the upper angle and vertical direction to plane it
Between at vertical direction angle α, the inferior horn transversely extends to corresponding another prefabricated steel reinforced concrete composite beam bridge panel, institute
State between the upper surface of inferior horn and the plane of horizontal direction horizontally angle β, the lower end surface at the upper angle and the inferior horn
Upper surface it is coplanar.
Preferably, the vertical direction angle α is 45 °, and the horizontal direction angle β is 50 °, the inferior horn
Lower end surface is the horizontal plane that the vertical plane height h of the lower end surface apart from the prefabricated steel reinforced concrete composite beam bridge panel is 7.5cm.
Preferably, transversely horizontally disposed reinforcement steel is embedded in the prefabricated steel reinforced concrete composite beam bridge panel
Muscle, the prefabricated steel reinforced concrete composite beam bridge panel is interior to be embedded with transversely horizontally disposed connection steel above the stiffener
The connection reinforcing bar embedded section of muscle, the connection reinforcing bar is embedded in prefabricated steel reinforced concrete composite beam bridge panel, the company of the connection reinforcing bar
It connects reinforcing bar linkage section to protrude into certain distance in the ongitudinal recess in the horizontal direction and bend downward, two pieces laterally adjacent described
The connection reinforcing bar linkage section of the corresponding connection reinforcing bar in prefabricated steel reinforced concrete composite beam bridge panel is in the ongitudinal recess
It interior lateral overlap and is bound.
Preferably, it is described be bolted system along bridge to being equally spaced, the cloth for being bolted system
Setting spacing is the stiffener along 2~4 times along bridge to spacing, and the longitudinal joint filler material is ultra-high performance concrete UHPC.
Preferably, the pre-embedded bolt includes screw rod, anchor plate and nut, and the embedded section of the screw rod is embedded in
In prefabricated steel reinforced concrete composite beam bridge panel, the linkage section of the screw rod exceeds the prefabricated steel reinforced concrete combination beam from the ongitudinal recess
Outside floorings, the opposite described vertical of two pieces of laterally adjacent prefabricated steel reinforced concrete composite beam bridge panels is arranged in the billet
To between recess, the linkage section passes through the billet and the anchor plate and the nut check.
Preferably, it is connected between two adjacent screw rods with the U-shaped anchor bar of direction across bridge along bridge, it is each
The U-shaped anchor bar of direction across bridge includes the direction across bridge welding ends and intermediate direction across bridge bending segment of two ends, the direction across bridge
The relatively described direction across bridge welding ends of bending segment is bent on cross-sectional direction, the direction across bridge bending segment towards described in neighbouring plus
Strong reinforcing bar bending and binding and fixing；It is connected on the two sidewalls of the direction across bridge of each screw rod along bridge to U-shaped anchor bar, often
The one suitable bridge to U-shaped anchor bar include the suitable bridge of two ends to welding ends and intermediate suitable bridge to bending segment, the suitable bridge
It is 60 ° to bending angle γ, the bending angle γ is bent to form in suitable bridge to the relatively described suitable bridge of bending segment to welding ends.
Preferably, the billet include by-level setting bottom plate and two sides side plate, the side plate with
Angle between horizontal plane is the horizontal direction angle β, and the linkage section offered on the side plate for screw rod extends there through side
Plate opening, the side plate openings are the long hole of length L, and the length L meets following formula: L=d+L1× tan (90 ° of-β),
Wherein, d is the nominal outside diameter of the screw rod, and L1 is that the linkage section of the screw rod exceeds the length of the side plate, the side
The upper end of plate opening is the arc to match with the side wall of screw rod.
The present invention also aims to provide a kind of construction of assembled steel reinforced concrete composite beam bridge floorings longitudinal joint connecting structure
Method can guarantee the intensity and reliability of longitudinal joint connection.
To achieve the above object, the assembled steel reinforced concrete composite beam bridge floorings longitudinal joint connecting structure construction designed by the present invention
The following steps are included: step d), setting up the prefabricated steel reinforced concrete composite beam bridge panel of laterally adjacent two pieces and manufacturing template makes method
The side end face of prefabricated steel reinforced concrete composite beam bridge panel has ongitudinal recess, sets up two pieces of laterally adjacent prefabricated steel reinforced concrete composite beam bridge faces
The framework of steel reinforcement of intralamellar part, framework of steel reinforcement include transversely horizontally disposed stiffener and it is transversely horizontally disposed and beyond indulge
To the connection reinforcing bar of recess；Step e), the designated position installation in two pieces of laterally adjacent prefabricated steel reinforced concrete composite beam bridge panels
The pre-embedded bolt being bolted in system, the embedded section of the screw rod of pre-embedded bolt are fixed in prefabricated steel reinforced concrete composite beam bridge panel,
The linkage section of screw rod exceeds ongitudinal recess；Step f) pours the coagulation of the prefabricated steel reinforced concrete composite beam bridge panel of laterally adjacent two pieces
Soil is completed prefabricated；Step g) transports prefabricated steel reinforced concrete composite beam bridge panel to construction site, and lifts by crane installation to designated position；
Step h) makes the billet being bolted in system in factory and transports to construction site；Step i), installation billet to cross
Designated position into the ongitudinal recess of two pieces of adjacent prefabricated steel reinforced concrete composite beam bridge panels, by the end sleeve of the linkage section of screw rod
Enter anchor plate, and is screwed into nut and is fastened；Step j) repeats step h)~step i), until being bolted along bridge to all
System is completed to fasten；Step k) exists corresponding connection reinforcing bar in two pieces of laterally adjacent prefabricated steel reinforced concrete composite beam bridge panels
The certain length of linkage section in ongitudinal recess bends downward 90 ° of l-shaped, and by laterally corresponding linkage section in lateral overlap section
It is bound；Step l), on the billet between the ongitudinal recess of two pieces of laterally adjacent prefabricated steel reinforced concrete composite beam bridge panels
Pour longitudinal joint filler material.
Preferably, the construction method further includes steps of step a) before the step d), makes
Make the U-shaped anchor bar of direction across bridge and along bridge to U-shaped anchor bar, the U-shaped anchor bar of direction across bridge includes the direction across bridge weldering of two ends
End and intermediate direction across bridge bending segment are connect, direction across bridge bending segment is bent on cross-sectional direction with respect to direction across bridge welding ends, along bridge
To U-shaped anchor bar include two ends suitable bridge to welding ends and intermediate suitable bridge to bending segment, suitable bridge is relatively suitable to bending segment
Bridge to welding ends along bridge to being bent to form bending angle γ；Step b), two sides are welded above and below the direction across bridge of the screw rod of pre-embedded bolt
It connects along bridge to the suitable bridge of U-shaped anchor bar to welding ends, is welded on pre-embedded bolt to a welding ends of U-shaped anchor bar along bridge
The upside of direction across bridge, another welding ends are welded on the downside of pre-embedded bolt direction across bridge, and two on the same screw rod are along bridge to U
Type anchor bar along bridge to being symmetrically welded；Step c), it is suitable in two pieces of laterally adjacent prefabricated steel reinforced concrete composite beam bridge panels respectively
Direction across bridge welding ends of the bridge to the two neighboring pre-embedded bolt two sides welding U-shaped anchor bar of direction across bridge, the U-shaped anchor bar of direction across bridge
Direction across bridge bending segment stretch to specific bit to the lower end of bending segment from soldered suitable bridge to the suitable bridge of U-shaped anchor bar
It sets, the U-shaped anchor bar of same root direction across bridge is welded on suitable bridge to the same side of two neighboring pre-embedded bolt；In the step e)
In, the direction across bridge bending segment of the U-shaped anchor bar of direction across bridge and neighbouring stiffener are subjected to binding and fixing.
The beneficial effects of the present invention are: assembled steel reinforced concrete composite beam bridge floorings longitudinal joint connecting structure of the invention and construction
Method is bolted system with pre-embedded bolt composition using steel plate and is attached, connecting structure is simple, intensity is high, bearing capacity is big,
Highly reliable, easy construction；Each component batch making in factory, is not affected by the external environment, and construction quality can guarantee.
Detailed description of the invention
Fig. 1 is the dress using the assembled steel reinforced concrete composite beam bridge floorings longitudinal joint connecting structure of the preferred embodiment of the present invention
Cross-sectional configuration schematic diagram with formula steel reinforced concrete composite beam bridge floorings.
Fig. 2 is the dress using the assembled steel reinforced concrete composite beam bridge floorings longitudinal joint connecting structure of the preferred embodiment of the present invention
Longitudinal overlooking structure diagram with formula steel reinforced concrete composite beam bridge floorings.
Fig. 3 is the cross-sectional configuration schematic diagram of the prefabricated steel reinforced concrete composite beam bridge panel in Fig. 1.
Fig. 4 is the cross-sectional configuration schematic diagram of the prefabricated steel reinforced concrete composite beam bridge panel in Fig. 1.
Fig. 5 is the transverse structure schematic diagram of the pre-embedded bolt in the bolt connection in Fig. 1.
Fig. 6 is the vertical structure schematic diagram of the pre-embedded bolt in the bolt connection in Fig. 1.
Fig. 7 is the transverse structure schematic diagram of the billet in the bolt connection in Fig. 1.
Fig. 8 is the vertical structure schematic diagram of the billet in the bolt connection in Fig. 1.
Fig. 9 is longitudinal overlooking structure diagram of the billet in the bolt connection in Fig. 1.
Figure 10 is the mounting means schematic diagram of the bolt connection in Fig. 1.
Each part numbers are as follows in figure: prefabricated steel reinforced concrete composite beam bridge panel 10: ongitudinal recess 11, stiffener 12, connection
Reinforcing bar 13；Upper angle 111, inferior horn 112；Connect reinforcing bar embedded section 131, connection reinforcing bar linkage section 132；Longitudinal joint filler material 20；Bolt
Linked system 30: pre-embedded bolt 31, billet 32；Screw rod 311, anchor plate 312, nut 313, the U-shaped anchor bar of direction across bridge
314, along bridge to U-shaped anchor bar 315；Embedded section 3111, linkage section 3112；Direction across bridge welding ends 3141, direction across bridge bending end
3142；Along bridge to welding ends 3151, along bridge to bending end 3152；Bottom plate 321, side plate 322, side plate openings 3221.
Specific embodiment
The following further describes the present invention in detail with reference to the accompanying drawings and specific embodiments.
Fig. 1 and Fig. 2 are please referred to, the assembled steel reinforced concrete composite beam bridge floorings longitudinal joint of the preferred embodiment of the present invention connects structure
Make be arranged in two pieces of laterally adjacent prefabricated 10 sides of steel reinforced concrete composite beam bridge panel to ongitudinal recess 11 between, for by two pieces of cross
It is attached to adjacent prefabricated steel reinforced concrete composite beam bridge panel 10.In illustrated embodiment, assembled steel reinforced concrete composite beam bridge floorings
Longitudinal joint connecting structure includes the ongitudinal recess 11 for being cast in two pieces of laterally adjacent prefabricated steel reinforced concrete composite beam bridge panels 10 along longitudinal direction
Between longitudinal joint filler material 20 and be arranged in ongitudinal recess 11 and be separately connected two pieces of laterally adjacent prefabricated steel reinforced concrete combination beams
The bolt connection 30 of floorings 10, is bolted system 30 and connects two pieces of laterally adjacent prefabricated steel reinforced concrete composite beam bridge panels
10, longitudinal joint filler material 20 pours the end beyond billet 32 for being filled on billet 32 and filling pre-embedded bolt 31, pours
The filler material 20 for being filled in longitudinal joint between ongitudinal recess 11 connects two pieces of laterally adjacent prefabricated steel reinforced concrete composite beam bridge panels 10
It shapes integral.
Please refer to Fig. 3 and Fig. 4, the cross of the ongitudinal recess 11 of the opposite side end face of prefabricated steel reinforced concrete composite beam bridge panel 10
It is the band form of grooves with upper angle 111 and inferior horn 112 to section.The upper angle 111 of ongitudinal recess 11 is to prefabricated steel reinforced concrete combination beam
10 sunken inside of floorings, thereon the suitable bridge of end face and vertical direction between plane at vertical direction angle α, vertical direction angle
α is 45 °.The inferior horn 112 of ongitudinal recess 11 transversely extends to corresponding prefabricated steel reinforced concrete composite beam bridge panel 10, thereon end face
Horizontally angle β, horizontal direction angle β are 50 ° between the plane of horizontal direction.The lower end surface at upper angle 111 and inferior horn
112 upper surface is coplanar (with horizontal plane at the plane of horizontal sextant angle β).The lower end surface of inferior horn 112 is horizontal plane, arrives pre-manufactured steel
The vertical plane height h of the lower end surface of mixed composite beam bridge panel 10 is 7.5cm.The ongitudinal recess of prefabricated steel reinforced concrete composite beam bridge panel 10
11 form increases the area of new-old concrete contact, and the generation of prefabricated bridge abutment joint inner concrete is made to bond effect, from
And strengthen the combination effect of new-old concrete.
Transversely horizontally disposed stiffener 12 is embedded in prefabricated steel reinforced concrete composite beam bridge panel 10, stiffener 12 is complete
Portion is embedded in prefabricated steel reinforced concrete composite beam bridge panel 10, to increase the structural strength of prefabricated steel reinforced concrete composite beam bridge panel 10.It is prefabricated
Transversely horizontally disposed connection reinforcing bar 13 is embedded in steel reinforced concrete composite beam bridge panel 10, connection reinforcing bar 13 is located at stiffener 12
Top.The connection reinforcing bar embedded section 131 of connection reinforcing bar 13 is embedded in prefabricated steel reinforced concrete composite beam bridge panel 10, and connection reinforcing bar connects
It connects section 132 and protrudes into certain distance in the ongitudinal recess 11 of prefabricated steel reinforced concrete composite beam bridge panel 10 in the horizontal direction, and bend downward
It is 90 °, L-shaped.The connection reinforcing bar of connection reinforcing bar 13 in two pieces of laterally adjacent prefabricated steel reinforced concrete composite beam bridge panels 10
Linkage section 132 lateral overlap and is bound in ongitudinal recess 11.In this way, increasing anchor of the connection reinforcing bar 13 in ongitudinal recess 11
Gu length, while the cementation between connection reinforcing bar 13 and longitudinal joint filler material 20 is improved, effectively strengthen the connection of longitudinal joint
Effect.
As shown in Figure 2, be bolted system 30 along bridge to being equally spaced, arrangement spacing be stiffener 12 along bridge to
2~4 times of spacing.
Fig. 5 and Fig. 6 are please referred to, being bolted system 30 includes being embedded in corresponding prefabricated steel reinforced concrete composite beam bridge panel respectively
The steel pad of pre-embedded bolt 31 in the adjacent prefabricated steel reinforced concrete composite beam bridge panel 10 of pre-embedded bolt 31 and lateral connection two in 10
Plate 32.Pre-embedded bolt 31 is embedded in prefabricated steel reinforced concrete composite beam bridge panel 10, and end exceeds pre-manufactured steel from ongitudinal recess 11
Outside mixed composite beam bridge panel 10, pre-buried pre-embedded bolt 31 is connected in two pieces of laterally adjacent prefabricated steel reinforced concrete composite beam bridge panels 10
To billet 32.The opposite ongitudinal recess of two pieces of laterally adjacent prefabricated steel reinforced concrete composite beam bridge panels 10 is arranged in billet 32
Between 11, two sides are connected separately with the end of the pre-embedded bolt 31 protruded out outside the prefabricated steel reinforced concrete composite beam bridge panel 10 of respective side
Head.
Pre-embedded bolt 31 includes screw rod 311, anchor plate 312 and nut 313, and one end embedded section 3111 of screw rod 311 is pre-buried
Enter in prefabricated steel reinforced concrete composite beam bridge panel 10, the other end (linkage section 3112) (lower end of upper angle (111) in ongitudinal recess 11
Face, inferior horn 112 plane at horizontal sextant angle β of upper surface and horizontal plane at) vertical protrude out.The linkage section of screw rod 311
3112 are locked after billet 32 and anchor plate 312 with nut 313.Length (buried depth) L of the embedded section 3111 of screw rod 3112
For 10cm.
It is connected between two adjacent screw rods 311 with the U-shaped anchor bar 314 of direction across bridge of two sides along bridge.Direction across bridge is U-shaped
Anchor bar 314 includes the direction across bridge welding ends 3141 and intermediate direction across bridge bending segment 3142 of two ends, direction across bridge bending segment
3142 opposite direction across bridge welding ends 3141 are bent on cross-sectional direction, and direction across bridge bending segment 3142 is towards neighbouring stiffener
12 bendings make direction across bridge bending segment 3142 can be close with stiffener 12 and bind together.Each U-shaped anchor bar of direction across bridge
314 direction across bridge welding ends 3141 is respectively welded to the suitable bridge of corresponding screw rod 311 on side wall.Along bridge to two adjacent spiral shells
It is connected between bar 311 with the U-shaped anchor bar 314 of two direction across bridge.
Suitable bridge is connected on the two sidewalls of the direction across bridge of each screw rod 311 to U-shaped anchor bar 315.Each suitable bridge is to U-shaped
Suitable the bridge of anchor bar 315 including two ends is to welding ends 3151 and intermediate suitable bridge to bending segment 3152, and suitable bridge is to bending segment
3152 be relatively 60 ° to bending angle γ, bending angle γ is bent to form in suitable bridge to welding ends 3151 along bridge.Along bridge to welding ends
Height H of 3151 upper end apart from bending place is 5cm.Each suitable bridge divides to the suitable bridge of U-shaped anchor bar 315 to welding ends 3151
It is not soldered on the direction across bridge side wall of screw rod 311.The suitable bridge of the direction across bridge two sides of each screw rod 311 is to U-shaped 315 phase of anchor bar
It is bent to (outside).
The U-shaped anchor bar 314 of direction across bridge and to U-shaped anchor bar 315 pre-embedded bolt 31 is effectively fixed pre- along bridge
Position in steel reinforced concrete composite beam bridge panel 10 processed, and by the friction between reinforcing bar and concrete and be engaged, considerably increase spiral shell
The breakout capacity of bolt linked system 30 fully ensures that the stable connection of the system of being bolted 30.
Fig. 7, Fig. 8 and Fig. 9 are please referred to, billet 32 includes the side plate 322 of the bottom plate 321 that by-level is arranged and two sides,
Angle between side plate 322 and horizontal plane is horizontal direction angle β, to guarantee the upper of side plate and the inferior horn 112 of ongitudinal recess 11
End face fitting.Side plate openings 3221 are offered on side plate 322, are extended there through for the linkage section 3112 of screw rod 311.
Figure 10 is please referred to, side plate openings 3221 are the long hole of length L.Since billet is pacified in a manner of from the top down
In ongitudinal recess 11, and the linkage section 3112 of screw rod 311 need to be passed through from corresponding side plate openings 3221, therefore length L
Following formula need to be met: L=d+L1× tan (90 ° of-β), wherein d is the nominal outside diameter of screw rod 311, and L1 is the company of screw rod 311
Connect the length that section 3111 exceeds side plate 322.The upper end of side plate openings 3221 is the arc to match with the side wall of screw rod 311.Arc
Shape aperture is vertically-mounted from top to bottom convenient for billet 32, and the fastening completion back side panel of nut 313 is open 3221 voids can be by rear
Longitudinal joint filler material 20 is poured to fill up.Longitudinal joint filler material 20 uses ultra-high performance concrete UHPC material, intensity is high, durability is good,
Fracture toughness is big, and has stronger microcrack self-healing ability, can effectively improve the stress performance of longitudinal joint junction, guarantees vertical
Stitch the reliability of connection.Monolithic billet 32 along bridge to fixing 2 pre-embedded bolts 31, and billet 32 along bridge to close cloth
It sets.
The construction method of the assembled steel reinforced concrete composite beam bridge floorings longitudinal joint connecting structure of the preferred embodiment of the present invention, tool
Body the following steps are included:
Step a) makes the U-shaped anchor bar 314 of direction across bridge and suitable bridge to U-shaped anchor bar 315.
The U-shaped anchor bar 314 of direction across bridge includes the direction across bridge welding ends 3141 and intermediate direction across bridge bending segment of two ends
3142, direction across bridge bending segment 3142 is bent on cross-sectional direction with respect to direction across bridge welding ends 3141.
Along bridge to suitable the bridge of U-shaped anchor bar 315 including two ends to welding ends 3151 and the suitable bridge of centre to bending segment
3152, along bridge to bending segment 3152 relatively along bridge to welding ends 3151 along bridge to being bent to form bending angle γ.
Step b), suitable bridge is welded to U-shaped anchor bar 315 in two sides above and below the direction across bridge of the screw rod 311 of pre-embedded bolt 31
Suitable bridge to welding ends 3151.
When welding, the upper of 31 direction across bridge of pre-embedded bolt is welded on to a welding ends 3151 of U-shaped anchor bar 315 along bridge
Side, another 3151 end of welding ends are welded on the downside of 31 direction across bridge of pre-embedded bolt, two on the same screw rod 311 along bridge to
U-shaped anchor bar 315 along bridge to being symmetrically welded.
Step c), respectively in two pieces of laterally adjacent prefabricated steel reinforced concrete composite beam bridge panels 10 along bridge to two neighboring pre-buried spiral shell
The direction across bridge welding ends 3141 of 31 two sides of the bolt welding U-shaped anchor bar 314 of direction across bridge.
When welding, the direction across bridge bending segment 3142 of the U-shaped anchor bar 314 of direction across bridge is from soldered suitable bridge to U-shaped anchor
Gu the suitable bridge of reinforcing bar 315 stretches to designated position to the lower end of bending segment 3152, the U-shaped anchor bar 314 of same root direction across bridge is welded
Connect along bridge to the same side of two neighboring pre-embedded bolt 31.
Step d), setting up the prefabricated steel reinforced concrete composite beam bridge panel 10 of laterally adjacent two pieces and manufacturing template makes prefabricated steel reinforced concrete
The side end face of composite beam bridge panel 10 has ongitudinal recess 11, sets up the prefabricated steel reinforced concrete composite beam bridge panel 10 of laterally adjacent two pieces
Internal framework of steel reinforcement, framework of steel reinforcement include transversely horizontally disposed stiffener 12 and transversely horizontally disposed and beyond indulging
To the connection reinforcing bar 13 of recess 11；
Step e), the designated position installation in two pieces of laterally adjacent prefabricated steel reinforced concrete composite beam bridge panels 10 are bolted
Pre-embedded bolt 31 in system 30, the embedded section 3111 of the screw rod 311 of pre-embedded bolt 31 are fixed on prefabricated steel reinforced concrete composite beam bridge face
In plate 10, the linkage section 3112 of screw rod 311 exceeds ongitudinal recess 11.
The U-shaped anchor bar 314 of two direction across bridge welded on two neighboring pre-embedded bolt 31, a binding is in stiffener
13 lower edge, in addition one binding stiffener 13 upper limb.
Step f), the concrete completion for pouring the prefabricated steel reinforced concrete composite beam bridge panel 10 of laterally adjacent two pieces are prefabricated.
When prefabricated, check that review is bolted the installation site of the pre-buried part of system 30, adjusted to undesirable
Whole correction.
Step g) by prefabricated steel reinforced concrete composite beam bridge panel 10 transport to construction site, and lifts by crane installation to designated position.
Step h) makes the billet 32 being bolted in system 30 in factory and transports to construction site.
Billet 32 along bridge to error in length should be not more than 1mm.
Step i), the ongitudinal recess 11 of installation billet 32 to two pieces of laterally adjacent prefabricated steel reinforced concrete composite beam bridge panels 10
In designated position, anchor plate 312 is inserted in the end of the linkage section 3112 of screw rod 311, and be screwed into nut 313 and fastened；
Step j) repeats step h)~step i), until completing fastening to all systems 30 that are bolted along bridge.
When bolt fastening, bolt on the prefabricated steel reinforced concrete composite beam bridge panel 10 of laterally adjacent two pieces connection 30 it is tight
Admittedly should symmetrically alternately.
Step k), by corresponding connection reinforcing bar 13 in two pieces of laterally adjacent prefabricated steel reinforced concrete composite beam bridge panels 10 in longitudinal direction
The certain length of linkage section 132 in recess 11 bends downward 90 degree of l-shaped, and will laterally corresponding linkage section 132 in transverse direction
Overlay segment is bound.
Step l), in billet between the ongitudinal recess 11 of two pieces of laterally adjacent prefabricated steel reinforced concrete composite beam bridge panels 10
Longitudinal joint filler material 20 is poured on 32.
It pours longitudinal joint filler material 20 and uses ultra-high performance concrete UHPC, and sufficiently vibrate, is closely knit.
Assembled steel reinforced concrete composite beam bridge floorings longitudinal joint connecting structure of the invention forms spiral shell using steel plate and pre-embedded bolt
Bolt linked system is attached, and connecting structure is simple, intensity is high, bearing capacity is big, highly reliable, easy construction, wherein pre-buried spiral shell
Bar is welded to connect using the U-shaped anchor bar dissipated around, and is bound with reinforcing bar in prefabricated bridge, and screw rod anchoring can
It leans on, sufficiently ensures the firm of bolt system connection.Longitudinal joint inner filling material uses ultra-high performance concrete UHPC, and intensity is high, durable
Property it is good, fracture toughness is big, and have stronger microcrack self-healing ability, can effectively improve the stress performance of longitudinal joint junction,
Guarantee the reliability of longitudinal joint connection.It is clearly understood that by above-mentioned record, assembled steel reinforced concrete composite beam bridge bridge floor of the invention
The advantages of plate longitudinal joint connecting structure and construction method, is mainly reflected in the following aspects:
It is connect using pre-embedded bolt with billet first is that being bolted in system, simple structure, easy construction, connects structure
It is big, highly reliable to make intensity height, bearing capacity.
Second is that each component batch making in factory, is not affected by the external environment, construction quality can guarantee.
Third is that interior in longitudinal joint filled using ultra-high performance concrete UHPC, intensity is high, durability is good, fracture toughness is big, and
With stronger microcrack self-healing ability, the stress performance of longitudinal joint junction can be effectively improved, guarantees the reliable of longitudinal joint connection
Property.
Fourth is that " L " type connects the setting of reinforcing bar in longitudinal joint, increase anchorage length of the connection reinforcing bar in newly-laid concrete,
Reinforce the connection effect of longitudinal joint.
In conclusion assembled steel reinforced concrete composite beam bridge floorings longitudinal joint connecting structure of the invention and construction method use steel
Backing plate is attached with pre-embedded bolt, and ultra-high performance concrete UHPC is filled in longitudinal joint, and is provided with " L " type connection reinforcing bar, even
Simple structure is connect, easy construction, bonding strength is high, bearing capacity is big, highly reliable.
The embodiments described above only express several embodiments of the present invention, and the description thereof is more specific and detailed, but simultaneously
Limitations on the scope of the patent of the present invention therefore cannot be interpreted as.It should be pointed out that for those of ordinary skill in the art
For, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to guarantor of the invention
Protect range.Therefore, the scope of protection of the patent of the invention shall be subject to the appended claims.
Claims (3)
1. a kind of assembled steel reinforced concrete composite beam bridge floorings longitudinal joint connecting structure, it is characterised in that: the longitudinal joint connecting structure packet
Include the longitudinal joint being cast between the ongitudinal recess (11) of two pieces of laterally adjacent prefabricated steel reinforced concrete composite beam bridge panels (10) along longitudinal direction
Filler material (20) and setting in the ongitudinal recess (11) and are separately connected two pieces of laterally adjacent prefabricated steel reinforced concrete combinations
The bolt of beam bridge panel (10) connects (30), it is described be bolted system (30) include be embedded in respectively it is corresponding described pre-
The adjacent prefabricated steel reinforced concrete composite beam bridge of pre-embedded bolt (31) and lateral connection two in steel reinforced concrete composite beam bridge panel (10) processed
The billet (32) of the pre-embedded bolt (31) in panel (10), the longitudinal joint filler material (20) are cast in the billet
(32) on and the end beyond the billet (32) of the pre-embedded bolt (31) is filled；The transverse direction of the ongitudinal recess (11)
Section is the band form of grooves with upper angle (111) and inferior horn (112), and the upper angle (111) is to the prefabricated steel reinforced concrete combination beam
Floorings (10) sunken inside, the upper surface of the upper angle (111) and the suitable bridge of vertical direction are pressed from both sides between plane at vertical direction
Angle α, the inferior horn (112) is transversely extended to corresponding another prefabricated steel reinforced concrete composite beam bridge panel (10), under described
Horizontally angle β between the upper surface at angle (112) and the plane of horizontal direction, the lower end surface of the upper angle (111) and institute
The upper surface for stating inferior horn (112) is coplanar；The vertical direction angle α is 45 °, and the horizontal direction angle β is 50 °, under described
The lower end surface at angle (112) is that the vertical plane height h of the lower end surface apart from the prefabricated steel reinforced concrete composite beam bridge panel (10) is 7.5cm
Horizontal plane；Transversely horizontally disposed stiffener (12), institute are embedded in the prefabricated steel reinforced concrete composite beam bridge panel (10)
It states in prefabricated steel reinforced concrete composite beam bridge panel (10) and is embedded with transversely horizontally disposed company above the stiffener (12)
It connects reinforcing bar (13), the connection reinforcing bar embedded section (131) of connection reinforcing bar (13) is embedded in prefabricated steel reinforced concrete composite beam bridge panel
(10) in, the connection reinforcing bar linkage section (132) of connection reinforcing bar (13) is protruded into the horizontal direction in the ongitudinal recess (11)
Certain distance is simultaneously bent downward, the corresponding company in two pieces of laterally adjacent prefabricated steel reinforced concrete composite beam bridge panels (10)
The connection reinforcing bar linkage section (132) of reinforcing bar (13) is connect in the interior lateral overlap of the ongitudinal recess (11) and is bound；It is described
System (30) is bolted along, to being equally spaced, the arrangement spacing for being bolted system (30) is the reinforcement steel along bridge
For muscle (12) along 2~4 times along bridge to spacing, the longitudinal joint filler material (20) is ultra-high performance concrete UHPC；The pre-buried spiral shell
Bolt (31) includes screw rod (311), anchor plate (312) and nut (313), and the embedded section (3111) of the screw rod (311) is embedded in
In prefabricated steel reinforced concrete composite beam bridge panel (10), the linkage section (3112) of the screw rod (311) surpasses at the ongitudinal recess (11)
Outside, two pieces of laterally adjacent pre-manufactured steels are arranged in the billet (32) to the prefabricated steel reinforced concrete composite beam bridge panel (10) out
Between the opposite ongitudinal recess (11) of mixed composite beam bridge panel (10), the linkage section (3112) passes through the billet
(32) it is locked with the anchor plate (312) with the nut (313)；It is used along bridge between two adjacent screw rods (311)
The U-shaped anchor bar of direction across bridge (314) connection, each U-shaped anchor bar of direction across bridge (314) include the direction across bridge weldering of two ends
Connect the direction across bridge bending segment (3142) at end (3141) and centre, the relatively described direction across bridge welding of the direction across bridge bending segment (3142)
End (3141) is bent on cross-sectional direction, and the direction across bridge bending segment (3142) is curved towards the neighbouring stiffener (12)
Roll over simultaneously binding and fixing；It is connected on the two sidewalls of the direction across bridge of each screw rod (311) along bridge to U-shaped anchor bar (315),
Each suitable bridge to U-shaped anchor bar (315) include the suitable bridge of two ends to welding ends (3151) and the suitable bridge of centre to curved
Trisection (3152), the suitable bridge is to the relatively described suitable bridge of bending segment (3152) to welding ends (3151) curved to being bent to form along bridge
Dog-ear γ, the bending angle γ are 60 °.
2. assembled steel reinforced concrete composite beam bridge floorings longitudinal joint connecting structure according to claim 1, it is characterised in that: described
Billet (32) includes the side plate (322) of the bottom plate (321) that by-level is arranged and two sides, the side plate (322) and horizontal plane
Between angle be the horizontal direction angle β, the linkage section (3112) for screw rod (311) is offered on the side plate (322)
It extends there through side plate openings (3221), the side plate openings (3221) are the long hole of length L, and the length L meets following formula:
L=d+L1× tan (90 ° of-β), wherein d is the nominal outside diameter of the screw rod (311), and L1 is the described of the screw rod (311)
Linkage section (3111) exceeds the length of the side plate (322), and the upper end of the side plate openings (3221) is the side with screw rod (311)
The arc that wall matches.
3. a kind of construction method of assembled steel reinforced concrete composite beam bridge floorings longitudinal joint connecting structure, comprising the following steps:
Step a) makes the U-shaped anchor bar of direction across bridge (314) and suitable bridge to U-shaped anchor bar (315), the U-shaped anchoring steel of direction across bridge
Muscle (314) includes the direction across bridge welding ends (3141) of two ends and the direction across bridge bending segment (3142) of centre, direction across bridge bending segment
(3142) opposite direction across bridge welding ends (3141) are bent on cross-sectional direction, along bridge to U-shaped anchor bar (315) include both ends
Suitable the bridge of head to welding ends (3151) and intermediate suitable bridge to bending segment (3152), suitable bridge to bending segment (3152) relatively along bridge to
Welding ends (3151) along bridge to being bent to form bending angle γ；
Step b), suitable bridge is welded to U-shaped anchor bar in two sides above and below the direction across bridge of the screw rod (311) of pre-embedded bolt (31)
(315) suitable bridge is welded on along bridge to a welding ends (3151) of U-shaped anchor bar (315) pre-buried to welding ends (3151)
The upside of bolt (31) direction across bridge, another welding ends (3151) holds the downside for being welded on pre-embedded bolt (31) direction across bridge, same
Two on a screw rod (311) along bridges to U-shaped anchor bar (315) along bridge to being symmetrically welded；
Step c), respectively in two pieces of laterally adjacent prefabricated steel reinforced concrete composite beam bridge panels (10) along bridge to two neighboring pre-embedded bolt
(31) the direction across bridge welding ends (3141) of the two sides welding U-shaped anchor bar of direction across bridge (314), the U-shaped anchor bar of direction across bridge (314)
Direction across bridge bending segment (3142) from soldered suitable bridge to the suitable bridge of U-shaped anchor bar (315) to bending segment (3152)
Lower end stretches to designated position, and the U-shaped anchor bar of same root direction across bridge (314) is welded on suitable bridge to two neighboring pre-embedded bolt
(31) the same side；
Step d), setting up the prefabricated steel reinforced concrete composite beam bridge panel (10) of laterally adjacent two pieces and manufacturing template makes prefabricated steel reinforced concrete group
The side end face for closing beam bridge panel (10) has ongitudinal recess (11), sets up the prefabricated steel reinforced concrete composite beam bridge panel of laterally adjacent two pieces
(10) internal framework of steel reinforcement, framework of steel reinforcement include transversely horizontally disposed stiffener (12) and transversely it is horizontally disposed simultaneously
Connection reinforcing bar (13) beyond ongitudinal recess (11)；
Step e), the designated position installation in two pieces of laterally adjacent prefabricated steel reinforced concrete composite beam bridge panels (10) are bolted body
It is the pre-embedded bolt (31) in (30), the embedded section (3111) of the screw rod (311) of pre-embedded bolt (31) is fixed on prefabricated steel reinforced concrete group
It closes in beam bridge panel (10), the linkage section (3112) of screw rod (311) exceeds ongitudinal recess (11), by the U-shaped anchor bar of direction across bridge
(314) direction across bridge bending segment (3142) and neighbouring stiffener (13) carries out binding and fixing；
Step f), the concrete completion for pouring the prefabricated steel reinforced concrete composite beam bridge panel (10) of laterally adjacent two pieces are prefabricated；
Step g) by prefabricated steel reinforced concrete composite beam bridge panel (10) transport to construction site, and lifts by crane installation to designated position；
Step h) makes the billet (32) being bolted in system (30) in factory and transports to construction site；
Step i), the ongitudinal recess of installation billet (32) to two pieces of laterally adjacent prefabricated steel reinforced concrete composite beam bridge panels (10)
(11) anchor plate (312) are inserted in the end of the linkage section (3112) of screw rod (311), and are screwed into nut in the designated position in
(313) it is fastened；
Step j) repeats step h)~step i), until completing fastening to all systems (30) that are bolted along bridge；
Step k), by corresponding connection reinforcing bar (13) in two pieces of laterally adjacent prefabricated steel reinforced concrete composite beam bridge panels (10) in longitudinal direction
The certain length of linkage section (132) in recess (11) bends downward 90 ° of l-shaped, and will laterally corresponding linkage section (132) exist
Lateral overlap section is bound；
Step l), the billet between the ongitudinal recess (11) of two pieces of laterally adjacent prefabricated steel reinforced concrete composite beam bridge panels (10)
(32) longitudinal joint filler material (20) are poured on.
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| CN110552285A (en) * | 2019-09-12 | 2019-12-10 | 广东高恩高速公路有限公司 | Steel-ultrahigh-performance concrete combined cast-in-place wet joint structure and construction method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109137727B (en) * | 2018-09-29 | 2024-05-17 | 中铁第四勘察设计院集团有限公司 | Dry-wet combined segment prefabrication and splicing joint system and method based on early strength UHPC |
| CN109629415B (en) * | 2018-12-07 | 2021-04-16 | 东南大学 | Stud-bolt embedded composite connection steel-UHPC sheet combination structure system |
| CN109972520B (en) * | 2019-03-06 | 2020-09-15 | 安徽省公路桥梁工程有限公司 | Construction method of prefabricated bridge deck installation structure |
| CN110387808A (en) * | 2019-08-16 | 2019-10-29 | 中国铁道科学研究院集团有限公司铁道建筑研究所 | A kind of prefabricated bridge floor affiliated facility ground connections |
| CN112411366A (en) * | 2020-03-27 | 2021-02-26 | 中铁第四勘察设计院集团有限公司 | Wet joint connecting structure of precast concrete bridge deck and construction method |
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| CH691496A5 (en) * | 1996-01-24 | 2001-07-31 | Rsag Reparatur Und Sanierungst | Connection construction for expanding or contracting components of road or bridge; has elastic connection layer, which has integrated flexible movement spiral spring fixed to components |
| CN201901844U (en) * | 2010-12-08 | 2011-07-20 | 衡水橡胶股份有限公司 | Expansion device for railway bridges |
| CN204185765U (en) * | 2014-09-18 | 2015-03-04 | 湖南大学 | The seam construction of steel-light-duty compound beam of very-high performance fibrous concrete |
| CN104532741A (en) * | 2014-12-25 | 2015-04-22 | 贵州省交通规划勘察设计研究院股份有限公司 | Modular telescopic device with adjustable annular steel |
| CN206553864U (en) * | 2017-01-19 | 2017-10-13 | 徐其亮 | A kind of road and bridge crack bracing means |
| CN206693046U (en) * | 2017-03-23 | 2017-12-01 | 邵旭东 | A kind of cast-in-place seam construction of ultra-high performance concrete floorings |
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| CN110552285A (en) * | 2019-09-12 | 2019-12-10 | 广东高恩高速公路有限公司 | Steel-ultrahigh-performance concrete combined cast-in-place wet joint structure and construction method |
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