CN110106772A - A kind of highway clod wash U-shaped composite beam bridge and its construction method - Google Patents
A kind of highway clod wash U-shaped composite beam bridge and its construction method Download PDFInfo
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- CN110106772A CN110106772A CN201910302113.XA CN201910302113A CN110106772A CN 110106772 A CN110106772 A CN 110106772A CN 201910302113 A CN201910302113 A CN 201910302113A CN 110106772 A CN110106772 A CN 110106772A
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- steel plate
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- beam bridge
- highway
- shaped steel
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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
-
- 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
- E01D19/10—Railings; Protectors against smoke or gases, e.g. of locomotives; Maintenance travellers; Fastening of pipes or cables to bridges
- E01D19/103—Parapets, railings ; Guard barriers or road-bridges
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D2/00—Bridges characterised by the cross-section of their bearing spanning structure
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D2101/00—Material constitution of bridges
- E01D2101/30—Metal
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
- Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)
Abstract
The invention discloses a kind of highway clod wash U-shaped composite beam bridge and its construction method, in structure by several U-shaped steel plate splicings be bridge main body steel construction；It is concreting area on U-shaped steel plate, bitumen layer is laid on concrete, door frame is arranged in end of the bridge, and guardrail and lamppost is arranged in bridge two sides.Compared with prior art, U-shaped steel plate cold bending of the present invention is formed without welding, and avoids the occurrence of problems of welded quality and welding residual stress；Shop splice steel girder segment is transported to scene, then casting concrete Cheng Qiao.Steel girder segment replaces construction formwork, and Optimizing construction technique improves construction quality and shortens construction period.Clod wash U-shaped combination beam anti-bending bearing capacity is 3 times of same across footpath hollow slab girder, and can reduce concrete cracking disease, enhances bridge durability.
Description
Technical field
The present invention relates to a kind of bridge structures, the especially structure of U-shaped composite beam bridge, lamppost and guardrail and its production side
Method belongs to bridge structure technical field.
Background technique
Traditional hollow slab girder concrete amount is big, and concrete segment is from great, for the area lifting fortune having inconvenient traffic
Defeated inconvenience, and concrete plate beam is easy to damage during transport, lifting.The past concrete hollow slab girder during service,
Overload overweight vehicle, which increases, and long-term temperature effect and shrinkage and creep are easy makes plate-girder cracking disease occur, jeopardizes bridge master
The durability of body and safety.In addition, concrete cracks quantity is more, distribution is wide, detection, reparation and reinforcement technique difficulty are big, after
Phase maintenance cost is big, influences the economic performance of bridge total life cycle.
Traditional hollow slab bridge guardrail mostly uses timber structure and steel construction, and the durability of timber structure is poor, is easy to damage by worms
With weathering corrosion phenomenon；Spray painting outside spray painting steel construction is easy to fall off because of pedestrian or vehicle friction, and the naked leakage of reinforcing bar is in sky
In gas, easily corrode.This kind of guardrail influences safety and the comfort of driving, and the maintenance in later period is inconvenient, maintenance cost
It is high.For conventional hollow plate-girder more than great, the cracking disease and the problems such as guardrail durability is poor, a kind of combination of clod wash U-shaped is proposed
Beam bridge solves.
Summary of the invention
The technical problem to be solved in the invention is in view of the above shortcomings of the prior art, and to provide a kind of highway clod wash U
Shape composite beam bridge and its construction method.
In order to solve the above technical problems, the technical solution adopted by the present invention is that:
A kind of highway clod wash U-shaped composite beam bridge, several U-shaped steel plates including transverse direction and longitudinal direction splicing, the section of U-shaped steel plate are U
Shape, the open surfaces of U-shaped steel plate are stamped armoured concrete slab, and the surrounding side of the armoured concrete slab has reserved steel bar,
Reserved steel bar be it is hook-shaped, be engaged between two neighboring armoured concrete slab by reserved steel bar；It is adjacent before and after beam bridge direction
It is lateral wet seam between two armoured concrete slabs, is longitudinal wet joint between two adjacent armoured concrete slabs of left and right,
Concrete is poured in the wet seam of the transverse direction and longitudinal wet joint, the armored concrete plate surface is equipped with bitumen layer.
Scheme as a further preference, U-shaped edges of plate position are welded with nail connector, weldering nail connector
In the wet seam of U-shaped steel plate concrete.
Scheme as a further preference is equipped between two longitudinally disposed U-shaped steel plates for being connected and fixed
Junction steel plate, the side and bottom of U-shaped steel plate are provided with junction steel plate.
Scheme as a further preference is provided with through reinforcing bar between two reserved steel bars being engaged.
Scheme as a further preference, the wet seam of transverse direction post water-stop glue band.
Scheme as a further preference, the beam bridge two sides are disposed with guardrail and street lamp.
Scheme as a further preference, the U-shaped steel plate edge of the beam bridge two sides are provided with built-in fitting, built-in fitting it is upper
Portion is welded with fence upright and street lamp, and the guardrail is mounted on fence upright.
A kind of construction method of highway clod wash U-shaped composite beam bridge, comprising the following steps:
Step 1: supporting structure is erected with Temporary Piers and Bailey beam；
Step 2: be prefabricated in the factory U-shaped steel plate while, be segmented pouring reinforcement concrete plate at bridging scene, and it is pre- in side
Stay reinforcing bar and built-in fitting；
Step 3: weldering nail connector is welded on U-shaped steel plate in factory, and U-shaped steel plate is transported to scene, exactitude position is set up；
Step 4: junction steel plate is fixed by bolts to two U-shaped steel plate docking locations, forms steel girder segment；
Step 5: armoured concrete slab is placed on U-shaped steel plate by piecemeal, armoured concrete slab and U-shaped steel plate junction with
And water-stop glue band is placed in two U-shaped steel plate junctions；
Step 6: vertical or horizontal reinforcing bar, longitudinal wet joint and cross are worn in the reserved steel bar lap-joint of two pieces of armoured concrete slabs
It is filled up to wet seam with concrete, forms concrete slab；
Step 7: after laterally wet seam and longitudinal wet joint reach design strength, in floorings asphalt surface layer；
Step 8: reaching design strength to asphalt surface course, and bucket arch lamppost and fence upright are welded with built-in fitting respectively；
Step 9: guardrail is pierced on fence upright.
Compared with prior art, a kind of highway clod wash U-shaped composite beam bridge of the invention and its construction method, can make full use of
The compressive property of the stronger tensile property of steel and concrete.U-shaped steel plate cold bending is formed without welding, and avoids the occurrence of welding quality
Problem and welding residual stress.Compared to concrete hollow slab girder, the present invention can reduce concrete cracking disease；Compared to clean steel
Beam, the present invention significantly improve the fatigue behaviour of steel plate.The anti-bending bearing capacity of clod wash U-shaped combination beam is same across footpath Hollow Slab Beam Bridge
3 times, due to U-shaped steel plate combination neutral axis of the beam below concrete slab and close to concrete slab, concrete is in full compression shape
State does not generate concrete in tension cracking disease；Girder steel is in tensile region, is not likely to produce the fatigue damage of girder steel.Steel in guardrail
Muscle is wrapped up with bamboo wood, and reinforcing bar is avoided to be directly exposed to air, and slows down the corrosion of reinforcing bar, and bamboo wood for ease of maintenaince replaces
It changes, economic performance is good.Using clod wash U-shaped steel plate alternate template, Optimizing construction technique shortens the construction period, saves construction cost；
Using concrete precast block, it is segmented the characteristics of installing, creep and shrinkage effects can be reduced.
Detailed description of the invention
Fig. 1 is the elevation of beam bridge；
Fig. 2 is the view in transverse section of beam bridge；
Fig. 3 is the connection schematic diagram of two U-shaped steel plates；
Fig. 4 is internal structure chart of the invention；
Fig. 5 is the sectional view of U-shaped steel plate；
Fig. 6 is built-in fitting schematic diagram；
Fig. 7 is schematic diagram at the top of fence upright；
Fig. 8 is bucket arch lamppost schematical top view；
Fig. 9 is guardrail schematic diagram；
Figure 10 is armoured concrete slab distribution map；
Wherein, 1-U shape steel plate, 2- weldering nail connector, 3- longitudinal wet joint, 4- junction steel plate, 5- fence upright, 6- built-in fitting,
At the top of the 7- fence upright of falling pagoda, 8- bucket arch lamppost, 9- guardrail, laterally wet seam, 11- armoured concrete slab, 12- are reserved by 10-
Reinforcing bar, 13- bitumen layer.
Specific embodiment
The optimal technical scheme that the invention will now be described in detail with reference to the accompanying drawings.
Embodiment 1
As shown, a kind of clod wash U-shaped composite beam bridge of the invention, learns according to analysis, the clod wash U-shaped composite beam bridge across
Diameter is in 10m to 20m range, and the rolled steel dosage compared to same across footpath hollow slab girder reduces about 30%-50%, and lifting quality reduces about
50%-70%；With weldering nail connector connection, enhancing steel reinforced concrete between the longitudinal wet joint 3 and lateral wet seam 10 and U-shaped steel plate 1
The switching performance at interface.The anti-bending bearing capacity of U-shaped steel plate combination beam bridge is 3 times of same across footpath hollow slab girder；
For the bucket arch lamppost 8 using oxidation steel plate, top structure is sets of brackets on top of the columns structure；Reinforcing bar is placed inside the horizontal bar 9, outside is adopted
With bamboo wood, bamboo is cut into isometric, diametrically splitted, obtained semicircle bamboo chip using rope made of hemp package well in advance horizontal bar steel
On muscle, common stress prevents pedestrian and vehicle from falling；The fence upright uses reinforced concrete structure, uses at the top of column
Pagoda-shaped 7.
Weldering nail connector 2 is provided in longitudinal wet joint 3 and laterally wet seam 10, the weldering nail connector 2 is welded on U-shaped
On steel plate 1.
Along vertical bridge to end it is lamppost 8 in bitumen layer 13, is sets of brackets on top of the columns structure at the top of the lamppost 8；In the bitumen layer 13
It is railing along direction across bridge both ends, falls pagoda-shaped 7 at the top of the fence upright 5, be bamboo wood outside horizontal bar 9, inside is reinforcing bar.
Prefabricated armoured concrete slab 11 is placed on U rib at longitudinal wet joint 3 and laterally wet seam 10；The reinforcing bar
11 reserved steel bar 12 of concrete slab and built-in fitting 6；Vertical or horizontal reinforcing bar is worn by 12 lap-joint of reserved steel bar, two be engaged
It is provided between a reserved steel bar 12 through reinforcing bar, plays dowel action.
A kind of highway clod wash U-shaped composite beam bridge and preparation method thereof, comprising:
A. abutment is built；
B. welding steel structure cage fills mortar flag stone；
C. setting support: construction channel is used as bracket substructure using Temporary Piers and Bailey beam, other using scaffolding steel pipe；
Precompressed (self weight and the 110% of construction loads) is carried out to bracket and eliminates settlement of foundation and bracket inelastic deformation；It is vertical to measure bracket
Flexible deformation, when formwork erection, should be included in the influence of bracket vertical elastic deformation and dead load flexible deformation；Place basin type rubber branch
Seat sets up U-shaped steel plate 1；
D. U-shaped steel plate 1 is lifted, exactitude position is set up；
E. connect junction steel plate 4 and U-shaped steel plate 1 with high-strength bolt, the connection including U-shaped steel plate 1 side and bottom；
F. corrosion, the dirt for removing girder steel top flange and connector, keep surface cleaning；
G. the positioning of armoured concrete slab 11 is placed on U rib, and wears vertical or horizontal reinforcing bar in 12 lap-joint of reserved steel bar,
Water-stop glue band is placed in armoured concrete slab 11 and 1 junction of U-shaped steel plate and two 1 junctions of U-shaped steel plate, in longitudinal wet joint
3 and laterally at wet seam 10 pour C50 concrete；
H. covering geotextiles conserve 28d；Form removal, striking are surface-treated；Expansion joint is set, pours end of the bridge and takes
Plate；
I. bitumen layer 13 is poured, after bitumen layer 13 reaches design strength, column channel steel and built-in fitting 6 are welded, guardrail 9 is installed
With lamppost 8；
J. fence upright 5, guardrail 9,8 antirust paint coating of lamppost；
K. at bridge.
It is specifically divided into following steps:
The positioning of U-shaped steel plate 1 is set up: setting up main bridge combination beam rack construction channel using Temporary Piers and Bailey beam as bracket lower part
Structure, other use scaffolding steel pipe；Precompressed is carried out to bracket and eliminates settlement of foundation and bracket inelastic deformation；It is perpendicular to measure bracket
To the influence for being included in support vertical elastic deformation and dead load flexible deformation when deforming formwork erection.U-shaped steel plate 1 is lifted, and is carried out
Contraposition is set up.
It is bolted: being connect junction steel plate 4 with U-shaped steel plate 1 with high strength friction bolt, including 1 side of U-shaped steel plate
With the connection of bottom surface.
It pours: armoured concrete slab 11 is placed on U rib, and wear vertical or horizontal steel in 12 lap-joint of reserved steel bar
Muscle places water-stop glue band in armoured concrete slab 11 and 1 junction of U-shaped steel plate and two 1 junctions of U-shaped steel plate, then exists
Casting concrete at longitudinal wet joint 3 and laterally wet seam 10, what it is due to selection is self-compaction light high strength concrete, without vibration
It smashes, demoulding after maintenance 28 days.
Welding: fence upright 5 and lamppost 8 are welded on built-in fitting 6, and welding uses fillet weld.
Guardrail is set up: reinforcing bar being passed through the hole that fence upright 5 is reserved above, and is fixed, bamboo is made to isometric, edge
Diameter is cast aside, and is obtained semicircular bamboo chip, is carried out water-proofing treatment, and two panels bamboo chip is stranded to prick being beforehand with using the rope made of hemp
On good horizontal bar reinforcing bar.
Above-described specific embodiment has carried out further the purpose of the present invention, technical scheme and beneficial effects
It is described in detail, it should be understood that being not limited to this hair the foregoing is merely a specific embodiment of the invention
Bright, all within the spirits and principles of the present invention, any modification, equivalent substitution, improvement and etc. done should be included in the present invention
Protection scope within.
Claims (8)
1. a kind of highway clod wash U-shaped composite beam bridge, it is characterised in that: several U-shaped steel plates (1) including transverse direction and longitudinal direction splicing, U
The section of shape steel plate (1) is U-shaped, and the open surfaces of U-shaped steel plate (1) are stamped armoured concrete slab (11), the armored concrete
The surrounding side of plate (11) has reserved steel bar (12), and reserved steel bar (12) is hook-shaped, two neighboring armoured concrete slab (11)
Between be engaged by reserved steel bar (12)；It is laterally wet between two adjacent armoured concrete slabs (11) before and after beam bridge direction
Seam (10) is longitudinal wet joint (3), wet 10 He of seam of transverse direction between two adjacent armoured concrete slabs (11) of left and right
Concrete is poured in longitudinal wet joint (3), armoured concrete slab (11) surface is equipped with bitumen layer.
2. a kind of highway clod wash U-shaped composite beam bridge according to claim 1, it is characterised in that: the U-shaped steel plate (1)
Marginal position is welded with nail connector (2), and weldering nail connector (2) is located in the wet seam of U-shaped steel plate (1) concrete (3).
3. a kind of highway clod wash U-shaped composite beam bridge according to claim 1, it is characterised in that: in two longitudinally disposed U
Junction steel plate (4) for being connected and fixed is installed, the side and bottom of U-shaped steel plate (1) are provided with company between shape steel plate (1)
Connect steel plate (4).
4. a kind of highway clod wash U-shaped composite beam bridge according to claim 1, it is characterised in that: two reserved steel being engaged
Muscle is provided between (12) through reinforcing bar.
5. a kind of highway clod wash U-shaped composite beam bridge according to claim 1, it is characterised in that: the wet seam of transverse direction
(10) water-stop glue band is posted.
6. a kind of highway clod wash U-shaped composite beam bridge according to claim 1, it is characterised in that: the beam bridge two sides arrangement
There are guardrail and street lamp.
7. a kind of highway clod wash U-shaped composite beam bridge according to claim 6, it is characterised in that: the U-shaped of the beam bridge two sides
Steel plate (1) edge is provided with built-in fitting (6), and the top of built-in fitting (6) is welded with fence upright (5) and street lamp, the guardrail peace
On fence upright (5).
8. a kind of construction method of highway clod wash U-shaped composite beam bridge according to any one of claims 1-7, feature
It is, comprising the following steps:
Step 1: supporting structure is erected with Temporary Piers and Bailey beam；
Step 2: be prefabricated in the factory U-shaped steel plate (1) while, bridging scene be segmented pouring reinforcement concrete plate (11), and
Side reserved steel bar (12) and built-in fitting (6)；
Step 3: weldering nail connector (2) is welded on U-shaped steel plate (1) in factory, and U-shaped steel plate is transported to scene, exactitude position
It sets up；
Step 4: junction steel plate (4) is fixed by bolts to two U-shaped steel plate (1) docking locations, forms steel girder segment；
Step 5: armoured concrete slab (11) is placed on U-shaped steel plate (1) by piecemeal, in armoured concrete slab (11) and U-shaped steel
Water-stop glue band is placed in plate (1) junction and two U-shaped steel plate (1) junctions；
Step 6: vertical or horizontal reinforcing bar, longitudinal wet are worn in reserved steel bar (12) lap-joint of two pieces of armoured concrete slabs (11)
Seam (3) and lateral wet seam (10) are filled up with concrete, form concrete slab；
Step 7: after laterally wet seam (10) and longitudinal wet joint (3) reach design strength, in floorings asphalt face
Layer；
Step 8: reaching design strength to asphalt surface course, and bucket arch lamppost (8) and fence upright (5) are welded with built-in fitting (6) respectively
It connects；
Step 9: guardrail (9) is pierced on fence upright (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910302113.XA CN110106772B (en) | 2019-04-16 | 2019-04-16 | Road cold-bending U-shaped combined beam bridge and construction method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910302113.XA CN110106772B (en) | 2019-04-16 | 2019-04-16 | Road cold-bending U-shaped combined beam bridge and construction method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110106772A true CN110106772A (en) | 2019-08-09 |
| CN110106772B CN110106772B (en) | 2021-06-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910302113.XA Active CN110106772B (en) | 2019-04-16 | 2019-04-16 | Road cold-bending U-shaped combined beam bridge and construction method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111366349A (en) * | 2020-03-09 | 2020-07-03 | 河海大学 | Large-span suspension bridge power test device with dynamically adjustable mass |
| CN114563200A (en) * | 2022-01-26 | 2022-05-31 | 河海大学 | Assembled large-span cable-stayed bridge power test system |
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| CN114563200B (en) * | 2022-01-26 | 2022-12-20 | 河海大学 | Assembled large-span cable-stayed bridge power test system |
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| Publication number | Publication date |
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| CN110106772B (en) | 2021-06-04 |
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