The content of the invention
The utility model provides a kind of box beam of full assembled steel-concrete combined structure, it is therefore intended that solve assembled steel reinforced concrete group
Close the problems such as structure box beam overall dimensions are big, lifting is difficult, welding job amount is big, holistic resistant behavior is poor.
To achieve the above object, the utility model can take following technical proposals：
The box beam of full assembled steel-concrete combined structure described in the utility model, including top plate, bottom plate and be fixed on described
Web between top plate and bottom plate, the top plate includes the first waveform steel plate being fixedly linked with the web, the first wave
Armoured concrete slab is provided with above shape steel plate, the shear connector end being welded on first waveform steel plate crest extends to institute
State in armoured concrete slab；The bottom plate is straight steel plate；The web is the steel plate of waveform configuration.
The second corrugated sheet steel being fixedly linked with the web, the straight steel plate are provided with above the straight steel plate of the bottom plate
It is connected with the trough of the second corrugated sheet steel by high-strength bolt.
The web upper end is provided with the I-shaped structure connector being weldingly connected with top plate, or passes through bolt arrangement
It is connected with top plate.
The web bottom is provided with the I-shaped structure connector being weldingly connected with bottom plate, or passes through bolt arrangement
It is connected with bottom plate.
The utility model provide full assembled steel-concrete combined structure box beam, fully combine concrete, corrugated sheet steel,
The respective advantage of straight steel plate, is efficiently solved using the wrinkle effect of corrugated sheet steel and is deformed between steel construction and concrete structure
Problem of disharmony, while making box beam that there is stronger bending strength under load action；Box beam top plate, bottom plate and web can be
Factory's precast block, improves construction precision；Site Welding amount is reduced, a series of diseases brought by weld seam are reduced；By
In employing prefabrication, the form of construction work of on-site consolidation, the site operation cycle is substantially reduced, construction speed is accelerated.
The box beam of assembled steel-concrete combined structure of the present utility model, including top plate, bottom plate and it is fixed on top plate and bottom plate
Between web.As Figure 1-4, the box beam top plate of full assembled steel-concrete combined structure described in the utility model is composite bridge
Panel, including the first waveform steel plate 1.1 being fixedly linked with web 3.1,3.2, the top of first waveform steel plate 1.1 are provided with reinforcing bar
Concrete slab 1.2, the end of shear connector 1.3 being welded on the crest of first waveform steel plate 1.1 extends to armoured concrete slab
1.2 it is interior.
When box beam size is smaller, bottom plate is only with straight steel plate 2.1；When box beam size is larger, bottom plate uses combined type,
Specifically, the second corrugated sheet steel 2.2 being fixedly linked with web 3.1,3.2, straight steel are provided with the top of straight steel plate 2.1 of bottom plate
Plate 2.1 be connected at the trough of the second corrugated sheet steel 2.2 by high-strength bolt 2.3, common stress.
Web 3.1,3.2 is the steel plate of waveform configuration, can improve the resist bending ability of web, and the entirety of enhancing box beam is strong
Degree.The connection of web 3.1,3.2 and top plate and bottom plate uses welding structure or/and bolt fastening structure.With web 3.2 and top plate
Connection exemplified by, as shown in Fig. 2 being provided with the I-shaped structure being weldingly connected with first waveform steel plate 1.1 in the end of web 3.2
Connector 3.3, or as shown in figure 4, be welded with overhanging connector 1.4 on first waveform steel plate 1.1, the end card of web 3.2
It is connected between overhanging connector 1.4, both are connected by bolt 3.4.The connection that bottom plate is connected with web can also use above-mentioned knot
Any of structure or two kinds.
During the combined bridge deck of prefabricated top plate, first first waveform steel plate 1.1 is laid on smooth ground, in its crest
Shear connector 1.3 is welded on face, steel form or the air bag consistent with trough shape are filled in trough as inner membrance, then
In framework of steel reinforcement of the top of first waveform steel plate 1.1 according to code requirement assembling reinforcement concrete slab 1.2, coagulation is finally poured into a mould
Soil, forms combined bridge deck.
During prefabricated panel, first according to design size respectively in the corresponding position of the straight corrugated sheet steel 2.2 of steel plate 2.1 and second
Straight steel plate 2.1, is then laid on smooth ground by reserved High-strength bolt hole, and the alignment of the second corrugated sheet steel 2.2 is placed on
Above straight steel plate 2.1, high-strength bolt 2.3 is carried out then according to symmetry principle just to twist, will according to symmetry principle after being fully completed
High-strength bolt 2.3 is screwed onto design load eventually, that is, completes the construction of box beam bottom plate.When box beam size is smaller, box beam bottom plate is only with straight
During steel plate 2.1, then this step is omitted.
Prefabricated Wavelike steel webplate 3.1,3.2, when using welding manner connection, is processed into I-shaped structure by its end and connects
Fitting 3.3；When being connected by screw bolts, welded respectively on the straight steel plate 2.1 of 1.1 and second corrugated sheet steel of first waveform steel plate 2.2/
Connect overhanging connector 1.4.
Wavelike steel webplate 3.1,3.2 is finally attached fixation with top plate and bottom plate respectively at the scene, overall case is completed
The assembling of beam.
The utility model is compared with the box beam of existing assembled steel-concrete combined structure, mainly with advantages below：
1）Relative to traditional steel reinforced concrete combined box beam, corrugated sheet steel has extremely strong anti-shearing flexion capabilities, and in transverse direction
Under temperature action and concrete shrinkage effect, it is different from concrete deformation that the fold effect of corrugated sheet steel can significantly reduce steel plate
The problem of step, the stress of floorings direction across bridge can be reduced, it is to avoid the cracking of floorings direction across bridge, so as to strengthen the whole of combined box beam
Body stress performance.
2）The current existing ripe production equipment of corrugated sheet steel, and form corrugated sheet steel production line, it is easy to it is extensive
Standardized production, accelerating construction progress saves construction investment cost.
3）The utility model employs corrugated sheet steel on a large scale, fully combines concrete crushing strength height and corrugated sheet steel
The good advantage of shearing resistance yield strength high fatigue resistance so that material obtains more reasonably applying, bulk strength is high.
4）The arrangement and method for construction of full assembling, steel construction is broken the whole up into parts, the time of site operation is effectively reduced, makes construction
Efficiency is increased substantially.
5）The welding capacity of steel construction is farthest reduced, the overall anti-fatigue performance of steel construction is favorably improved, carries
The life-span of high bridge.