CN208649870U - A kind of prefabricated steel and concrete combination beam trestle - Google Patents
A kind of prefabricated steel and concrete combination beam trestle Download PDFInfo
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- CN208649870U CN208649870U CN201821171787.8U CN201821171787U CN208649870U CN 208649870 U CN208649870 U CN 208649870U CN 201821171787 U CN201821171787 U CN 201821171787U CN 208649870 U CN208649870 U CN 208649870U
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Abstract
A kind of prefabricated steel and concrete combination beam trestle, including superstructure and substructure;Superstructure includes the two halves Prefabricated combined beam made of concrete slab and section steel beam, and two halves beam body is attached by bolt, and combination beam is fixedly connected with by section steel beam and the steel-pipe pile of trestle substructure;Trestle substructure includes steel-pipe pile, bracket, connection system, bridging and crossbeam.The construction method of trestle are as follows: steel-pipe pile is lifted into stake position, opening is processed at the top of steel-pipe pile, and by transverse beam lifting to opening, crossbeam and steel-pipe pile are welded together, half Prefabricated combined beam of the right side is lifted on crossbeam, in the section steel beam two sides welded limiting plate of right half Prefabricated combined beam;It will be lifted on crossbeam on left half Prefabricated combined beam, make accurately to enter in docking recess connecting bolt, installation is to connected nut and screws, and is fixed together until by two halves Prefabricated combined beam, in the section steel beam two sides welded limiting plate of right half Prefabricated combined beam, the casting concrete in docking recess.
Description
Technical field
The utility model belongs to trestle technical field of construction, more particularly to a kind of prefabricated steel and concrete combination beam stack
Bridge.
Background technique
When the substructure that constructs a bridge in rivers, reservoir zone, coastal waters basin, can usually face tidal level variation, wave it is high,
The adverse effect such as water flow urgency, floating ice brings many difficulties to build sidewalk and water transportation.For this purpose, engineer just contemplate it is logical
It crosses and builds the method for temporary trestle bridge to solve these difficulties.
Trestle is a kind of for transport material, equipment, personnel and the temporary bridge facility built, it has, and bearing capacity is big, applies
Work is convenient, dismounting is convenient, the provisional and repeatable distinguishing features such as utilize.
Trestle can be divided into timber trestle bridge and steel trestle by construction material.Since the property of timber inherently is easy to be rotten
Erosion, thus now timber structure trestle oneself through being rarely employed.Steel construction is the trestle work structure form most generallyd use at present, steel trestle
Substructure and superstructure can be divided into, substructure includes connection structure between basic, stake and stake, and stake generally uses steel pipe
Stake, superstructure mostly use greatly Bailey beam form, after steel-pipe pile height of pile top checks qualification, then successively install crossbeam, place
Bailey beam, connecting cross beam stringer finally place floorings railing.
For traditional steel trestle, work progress is complex, and connecting structure is more, while steel using amount is larger,
Since Bailey beam needs connection in advance, this also brings many difficulties to site operation.
Utility model content
In view of the problems of the existing technology, the utility model provides a kind of prefabricated steel and concrete combination beam trestle,
Can carry out assembly at the construction field (site) completely, using prefabricated steel and concrete combination beam be substituted traditional Bailey beam, stringer and
Crossbeam effectively saves the value volume and range of product of scene splicing component, simplifies working procedure, shorten the construction time, accelerate
Speed of application.
To achieve the goals above, the utility model adopts the following technical solution: a kind of prefabricated steel and Combined concrete
Beam trestle, including trestle superstructure and trestle substructure;The trestle superstructure includes integral prefabricated combination beam, whole
Prefabricated combined beam is divided into left half Prefabricated combined beam and right half Prefabricated combined beam, left half Prefabricated combined beam and right half Prefabricated combined beam pair
It connects and cooperatively forms integral prefabricated combination beam;Left half Prefabricated combined beam is made of concrete slab and section steel beam, prefabricated on a left side half
The lower vertical of combination beam is equipped with switching bolt, and the nut for bolt of transferring is cast in concrete, and the screw rod for bolt of transferring is stretched
Section steel beam is arranged in concrete slab out below concrete slab, and the screw rod of section steel beam and switching bolt is fixedly connected with, pre- described left half
The concrete slab butt end lateral of combination beam processed is equipped with several pairs of connecting bolts, is cast in concrete slab to the nut of connecting bolt
In, and concrete slab is stretched out to the screw rod of connecting bolt;Right half Prefabricated combined beam is also made of concrete slab and section steel beam,
The lower vertical of concrete slab is equipped with switching bolt, and the nut for bolt of transferring is cast in concrete slab, and the spiral shell for bolt of transferring
Bar stretches out concrete slab, section steel beam is arranged below concrete slab, the screw rod of section steel beam and switching bolt is fixedly connected with, on the right side
The concrete slab butt end side of half Prefabricated combined beam is equipped with several docking recess, docking recess with to the position of connecting bolt one by one
It is corresponding, connecting bolt is configured with to connected nut;The trestle substructure includes steel-pipe pile, bracket, connection system, bridging and cross
Beam;The crossbeam is fixed at the top of steel-pipe pile, and the connection system is fixed at the steel-pipe pile of below the crossbeam by bracket
On, the bridging is fixed in the middle part of steel-pipe pile;The integral prefabricated combination beam passes through in section steel beam two sides welded limiting
Plate is fixedly connected with beam surface upper.
The section steel beam is made of I-steel or channel steel;When using channel steel, channel steel needs two altogether, and two channel steels use
Notch relative mode or notch carry out the combination that is connected back to mode.
The section steel beam is identical with the quantity on right half Prefabricated combined beam in left half Prefabricated combined beam, and according to trestle bridge floor
Of different size, the quantity of section steel beam is more than or equal to two.
The construction method of the prefabricated steel and concrete combination beam trestle, includes the following steps:
Step 1: being lifted into stake position for steel-pipe pile, guarantees that the verticality of steel-pipe pile meets design requirement;
Step 2: connection system and bridging are respectively installed between steel-pipe pile, guarantee the stability of steel-pipe pile;
Step 3: according to designed elevation, opening is processed at the top of steel-pipe pile using cutter, by transverse beam lifting to steel-pipe pile
Top opening in;
Step 4: in the top opening two sides of steel-pipe pile, crossbeam and steel-pipe pile are welded together using steel plate, steel-pipe pile
Construction terminates;
Step 5: half Prefabricated combined beam of the right side is lifted on crossbeam, guarantees the positioning accuracy of right half Prefabricated combined beam;
Step 6: in the section steel beam two sides welded limiting plate of right half Prefabricated combined beam;
Step 7: half Prefabricated combined beam of a left side being lifted on crossbeam, guarantees the positioning accuracy of left half Prefabricated combined beam, is made pair
The screw rod of connecting bolt accurately enters in docking recess;
Step 8: will be installed on the screw rod to connecting bolt connected nut, screw to connected nut, until left half Prefabricated composite
Beam and right half Prefabricated combined beam are fixed together;
Step 9: in the section steel beam two sides welded limiting plate of left half Prefabricated combined beam;
Step 10: pouring into concrete in docking recess, the concrete poured after by docking recess to connecting bolt
Screw rod and connected nut is all encapsulated, until concrete reaches design strength.
The utility model has the beneficial effects that
The prefabricated steel and concrete combination beam trestle of the utility model, can carry out assembly at the construction field (site) completely, utilize
Traditional Bailey beam, longitudinal and cross beam is substituted in prefabricated steel and concrete combination beam, effectively saves scene splicing component
Value volume and range of product simplifies working procedure, shortens the construction time, accelerates speed of application.
Detailed description of the invention
Fig. 1 is the prefabricated steel and concrete combination beam trestle (section steel beam is 3 pairs) structural schematic diagram of the utility model;
Fig. 2 is the prefabricated steel and concrete combination beam trestle (section steel beam is 2 pairs) structural schematic diagram of the utility model;
Fig. 3 is the prefabricated steel and concrete combination beam trestle (section steel beam is 1 pair) structural schematic diagram of the utility model;
Fig. 4 is the structural schematic diagram of left half Prefabricated combined beam (section steel beam is 3 pairs);
Fig. 5 is the structural schematic diagram of right half Prefabricated combined beam (section steel beam is 3 pairs);
Fig. 6 is the side view at Prefabricated combined beam docking;
Fig. 7 is the top view at Prefabricated combined beam docking;
Fig. 8 is Prefabricated combined beam partial schematic diagram when section steel beam uses I-steel;
Fig. 9 is the Prefabricated combined beam partial schematic diagram of (notch is opposite) when section steel beam uses channel steel;
Figure 10 is the Prefabricated combined beam partial schematic diagram of (notch back to) when section steel beam uses channel steel;
In figure, 1-left half Prefabricated combined beam, 2-right half Prefabricated combined beams, 3-switching bolts, 4-section steel beams, 5-is right
Connecting bolt, 6-docking recess, 7-to connected nut, 8-steel-pipe piles, 9-connection systems, 10-bridgings, 11-crossbeams, 12-works
Word steel, 13-channel steels.
Specific embodiment
The utility model is described in further detail in the following with reference to the drawings and specific embodiments.
As shown in Fig. 1~10, under a kind of prefabricated steel and concrete combination beam trestle, including trestle superstructure and trestle
Portion's structure;The trestle superstructure includes integral prefabricated combination beam, and integral prefabricated combination beam is divided into 1 He of left half Prefabricated combined beam
Right half Prefabricated combined beam 2, half Prefabricated combined beam 1 of a left side and right half Prefabricated combined beam 2 docking cooperatively form integral prefabricated combination beam;Institute
It states left half Prefabricated combined beam 1 to be made of concrete slab and section steel beam 4, is equipped with switching in the lower vertical of left half Prefabricated combined beam 1
The nut of bolt 3, switching bolt 3 is cast in concrete, and the screw rod for bolt 3 of transferring stretches out concrete slab, in concrete slab
Section steel beam 4 is arranged in lower section, and section steel beam 4 and the screw rod of switching bolt 3 are fixedly connected with, in the concrete of left half Prefabricated combined beam 1
Plate butt end lateral is equipped with several pairs of connecting bolts 5, is cast in concrete slab to the nut of connecting bolt 5, and to connecting bolt 5
Screw rod stretch out concrete slab;Right half Prefabricated combined beam 2 is also made of concrete slab and section steel beam 4, in concrete slab
Lower vertical is equipped with switching bolt 3, and the nut of switching bolt 3 is cast in concrete slab, and the screw rod stretching for bolt 3 of transferring is mixed
Section steel beam 4 is arranged in concrete board below concrete slab, and section steel beam 4 and the screw rod of switching bolt 3 are fixedly connected with, pre- described right half
The concrete slab butt end side of combination beam 2 processed is equipped with several docking recess 6, docking recess 6 with to the position of connecting bolt 5 one by one
It is corresponding, connecting bolt 5 is configured with to connected nut 7;It is 9, bridging that the trestle substructure, which includes steel-pipe pile 8, bracket, connection,
10 and crossbeam 11;The crossbeam 11 is fixed at the top of steel-pipe pile 8, and the connection is 9 to be fixed at crossbeam by bracket
On the steel-pipe pile 8 of 11 lower sections, the bridging 10 is fixed at 8 middle part of steel-pipe pile;The integral prefabricated combination beam by
4 two sides welded limiting plate of section steel beam is fixedly connected with 11 upper surface of crossbeam.
The section steel beam 4 is made of I-steel 12 or channel steel 13;When using channel steel 13, channel steel 13 needs two altogether, and two
Root channel steel 13 carries out the combination that is connected back to mode using notch relative mode or notch.
The section steel beam 4 is identical with the quantity on right half Prefabricated combined beam 2 in left half Prefabricated combined beam 1, and according to trestle
Bridge deck width is different, and the quantity of section steel beam 4 is more than or equal to two.
The construction method of the prefabricated steel and concrete combination beam trestle, includes the following steps:
Step 1: being lifted into stake position for steel-pipe pile 8, guarantees that the verticality of steel-pipe pile 8 meets design requirement and (can use and defend
Star is positioned);
Step 2: being that 9 and bridging 10 are respectively installed between steel-pipe pile 8 by connection, guarantees the stability of steel-pipe pile 8;
Step 3: according to designed elevation, opening is processed at the top of steel-pipe pile 8 using cutter, crossbeam 11 is lifted into steel
In the top opening of tubular pole 8;
Step 4: in the top opening two sides of steel-pipe pile 8, crossbeam 11 and steel-pipe pile 8 are welded together using steel plate, steel
Tube pile construction terminates;
Step 5: half Prefabricated combined beam 2 of the right side is lifted on crossbeam 11, guarantees the positioning accuracy of right half Prefabricated combined beam 2
(can be positioned using satellite);
Step 6: in the 4 two sides welded limiting plate of section steel beam of right half Prefabricated combined beam 2;
Step 7: half Prefabricated combined beam 1 of a left side is lifted on crossbeam 11, guarantees the positioning accuracy of left half Prefabricated combined beam 1
(can be positioned using satellite), makes accurately to enter in docking recess 6 screw rod of connecting bolt 5;
Step 8: will be installed on the screw rod to connecting bolt 5 connected nut 7, screw to connected nut 7, until a left side half is prefabricated
Combination beam 1 and right half Prefabricated combined beam 2 are fixed together;
Step 9: in the 4 two sides welded limiting plate of section steel beam of left half Prefabricated combined beam 1;
Step 10: pouring into concrete in docking recess 6, and the concrete poured after is by the docking spiral shell in docking recess 6
5 screw rod of bolt and connected nut 7 is all encapsulated, until concrete reaches design strength.
Scheme in embodiment is not the scope of patent protection to limit the utility model, all without departing from the utility model
Carried out by equivalence enforcement or change, be both contained in the scope of the patents of this case.
Claims (3)
1. a kind of prefabricated steel and concrete combination beam trestle, it is characterised in that: including trestle superstructure and trestle lower junction
Structure;The trestle superstructure includes integral prefabricated combination beam, and integral prefabricated combination beam is divided into left half Prefabricated combined beam and right half
Prefabricated combined beam, left half Prefabricated combined beam and right half Prefabricated combined beam docking cooperatively form integral prefabricated combination beam;Described left half
Prefabricated combined beam is made of concrete slab and section steel beam, is equipped with switching bolt, switching in the lower vertical of left half Prefabricated combined beam
The nut of bolt is cast in concrete, and the screw rod for bolt of transferring stretches out concrete slab, and fashioned iron is arranged below concrete slab
The screw rod of beam, section steel beam and switching bolt is fixedly connected with, in the concrete slab butt end lateral of left half Prefabricated combined beam
Equipped with several pairs of connecting bolts, the nut of connecting bolt is cast in concrete slab, and concrete slab is stretched out to the screw rod of connecting bolt;
Right half Prefabricated combined beam is also made of concrete slab and section steel beam, is equipped with switching bolt in the lower vertical of concrete slab,
The nut of switching bolt is cast in concrete slab, and the screw rod for bolt of transferring stretches out concrete slab, sets below concrete slab
Section steel beam is set, the screw rod of section steel beam and switching bolt is fixedly connected with, and docks end side in the concrete slab of right half Prefabricated combined beam
Portion is equipped with several docking recess, and docking recess is corresponded with the position to connecting bolt, is configured with connecting bolt to connected nut;Institute
Stating trestle substructure includes steel-pipe pile, bracket, connection system, bridging and crossbeam;The crossbeam is fixed at steel pipe stake top
Portion, the connection system are fixed on the steel-pipe pile of below the crossbeam by bracket, and the bridging is fixed at steel-pipe pile
Middle part;The integral prefabricated combination beam in section steel beam two sides welded limiting plate with beam surface upper by being fixedly connected.
2. a kind of prefabricated steel according to claim 1 and concrete combination beam trestle, it is characterised in that: the section steel beam
It is made of I-steel or channel steel;When using channel steel, channel steel needs two altogether, and two channel steels use notch relative mode or notch
The combination that is connected is carried out back to mode.
3. a kind of prefabricated steel according to claim 1 and concrete combination beam trestle, it is characterised in that: the section steel beam
It is identical with the quantity on right half Prefabricated combined beam and different according to trestle bridge deck width in left half Prefabricated combined beam, section steel beam
Quantity is more than or equal to two.
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CN201821171787.8U CN208649870U (en) | 2018-07-24 | 2018-07-24 | A kind of prefabricated steel and concrete combination beam trestle |
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CN201821171787.8U CN208649870U (en) | 2018-07-24 | 2018-07-24 | A kind of prefabricated steel and concrete combination beam trestle |
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Cited By (1)
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CN108660909A (en) * | 2018-07-24 | 2018-10-16 | 东北大学 | A kind of prefabricated steel and concrete combination beam trestle and construction method |
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Publication number | Priority date | Publication date | Assignee | Title |
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CN108660909A (en) * | 2018-07-24 | 2018-10-16 | 东北大学 | A kind of prefabricated steel and concrete combination beam trestle and construction method |
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