CN204059179U - A kind of T-shaped plate girder precast segment unit based on steel truss and combined bridge deck - Google Patents
A kind of T-shaped plate girder precast segment unit based on steel truss and combined bridge deck Download PDFInfo
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- CN204059179U CN204059179U CN201420429592.4U CN201420429592U CN204059179U CN 204059179 U CN204059179 U CN 204059179U CN 201420429592 U CN201420429592 U CN 201420429592U CN 204059179 U CN204059179 U CN 204059179U
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Abstract
The utility model discloses a kind of T-shaped plate girder precast segment unit based on steel truss and combined bridge deck, the combined bridge deck comprising bottom load-carrying construction and be laid on the load-carrying construction of bottom, combined bridge deck and bottom load-carrying construction are all along vertical bridge to laying; Bottom load-carrying construction is made up of upper chord, lower chord and web member, and upper chord comprises the first rectangular steel pipe, and lower chord comprises the second rectangular steel pipe; The concrete slab that the multiple tracks that combined bridge deck comprises bottom support steel plate, be laid on bottom support steel plate is put vertical rib and built on bottom support steel plate, on put vertical rib and built in concrete slab, above putting vertical rib is the elongate steel plate that middle part has multiple through hole; Bottom support steel plate is the rectangle supporting steel plate connected into by left extension steel plate, right extension steel plate and the first rectangular steel pipe.The utility model structure is simple, reasonable in design and easy construction, overall mechanical property are good, can improve structure accuracy and the construction convenience of steel reinforced concrete combined bridge.
Description
Technical field
The utility model belongs to bridge construction field of engineering technology, especially relates to a kind of T-shaped plate girder precast segment unit based on steel truss and combined bridge deck.
Background technology
Steel-mixed combined bridge is the novel bridge form of structure grown up at home in recent years, because it has given full play to steel work and concrete structure separately and compound action, has more wide application prospect at home.Steel purlin bridge from heavy and light, span ability is strong and be convenient to realize factorial construction, is one of popular at present a kind of bridge type.And floor system plays an important role in bridge, its not only can with beam common combination bearing load, and ensure driving ride comfort and comfortableness.
The bridge deck of conventional steel purlin bridge can adopt steel bridge deck or concrete slab, wherein concrete slab with its cost low and with Asphalt Concrete Deck Pavement caking property and the advantage such as following is better, compare be widely used in greatly across or Medium Span steel purlin bridge in.During practice of construction, concrete slab construction can adopt cast-in-place or prefabrication two kinds of modes.The long construction period of cast-in-situ concrete bridge deck and need a large amount of template.In order to the reduction of erection time, simplify on-site construction processes, precast concrete bridge deck with the obvious advantage.But be generally be connected with girder steel by bridge deck by arranging the connecting keys such as WELDING STUDS at present, bridge floor local stress is large, and joint efficiency is lower, and WELDING STUDS welding quantity is various, and speed of application is slow.
Utility model content
Technical problem to be solved in the utility model is for above-mentioned deficiency of the prior art, a kind of T-shaped plate girder precast segment unit based on steel truss and combined bridge deck is provided, its structure is simple, reasonable in design and easy construction, overall mechanical property are good, effectively can improve structure accuracy and the construction convenience of steel reinforced concrete combined bridge.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is: a kind of T-shaped plate girder precast segment unit based on steel truss and combined bridge deck, it is characterized in that: comprise bottom load-carrying construction and be laid in the combined bridge deck on the load-carrying construction of described bottom, described combined bridge deck is positioned at directly over the load-carrying construction of described bottom and the two is vertical runs, and described combined bridge deck and described bottom load-carrying construction are all along the vertical bridge of institute's construction bridges to laying; Described bottom load-carrying construction is by one upper chord, one lower chord and is connected to the plane frame that the multiple tracks web member between upper chord and lower chord forms, and described lower chord is positioned at immediately below upper chord and the two is parallel laying; Described upper chord comprises the first rectangular steel pipe, and four inside walls of described first rectangular steel pipe are laid with the first longitudinal stiffener; Described lower chord comprises the second rectangular steel pipe, and four inside walls of described second rectangular steel pipe are laid with the second longitudinal stiffener; Described first longitudinal stiffener and the second longitudinal stiffener are all along the vertical bridge of institute's construction bridges to laying; Described combined bridge deck comprises bottom support steel plate, be laid on described bottom support steel plate multiple tracks from left to right on put vertical rib and build the concrete slab on described bottom support steel plate, put vertical rib on described in multiple tracks all to build in concrete slab, vertical rib is put all along the vertical bridge of institute's construction bridges to laying and it is all vertical runs with described bottom support steel plate on described in multiple tracks, the structure of putting vertical rib on described in multiple tracks is all identical with size, and putting vertical rib on described is the elongate steel plate that middle part has multiple through hole from front to back; Described bottom support steel plate is the rectangle supporting steel plate connected into by left extension steel plate, right extension steel plate and the first rectangular steel pipe, described left extension steel plate and right extension steel plate are laid in the left and right sides of the first rectangular steel pipe respectively, and described left extension steel plate and right extension steel plate connect as one with the first rectangular steel pipe and the end face of three is mutually concordant.
Above-mentioned a kind of T-shaped plate girder precast segment unit based on steel truss and combined bridge deck, it is characterized in that: in described first rectangular steel pipe lay the first longitudinal stiffener quantity be four roads, first longitudinal stiffener described in four roads is laid in the middle part of four inside walls of the first rectangular steel pipe respectively, described first longitudinal stiffener and its lay the first rectangular steel pipe inside wall be vertical runs; In described second rectangular steel pipe lay the second longitudinal stiffener quantity be four roads, second longitudinal stiffener described in four roads is laid in the middle part of four inside walls of the second rectangular steel pipe respectively, described second longitudinal stiffener and its lay the second rectangular steel pipe inside wall be vertical runs.
Above-mentioned a kind of T-shaped plate girder precast segment unit based on steel truss and combined bridge deck, it is characterized in that: described upper chord and lower chord are encased structures, described upper chord also comprises first concrete structure of building in the first rectangular steel pipe, and described first longitudinal stiffener is built in described first concrete structure; Described lower chord also comprises second concrete structure of building in the second rectangular steel pipe, and described second longitudinal stiffener is built in described second concrete structure.
Above-mentioned a kind of T-shaped plate girder precast segment unit based on steel truss and combined bridge deck, it is characterized in that: described first longitudinal stiffener is elongate steel plate and it is weldingly fixed on the inside wall of the first rectangular steel pipe, described second longitudinal stiffener is elongate steel plate and it is weldingly fixed on the inside wall of the second rectangular steel pipe.
Above-mentioned a kind of T-shaped plate girder precast segment unit based on steel truss and combined bridge deck, it is characterized in that: described combined bridge deck is that level is laid, described bottom load-carrying construction is in vertically to laying, and the apical side height of described concrete slab is higher than the apical side height above putting vertical rib.
Above-mentioned a kind of T-shaped plate girder precast segment unit based on steel truss and combined bridge deck, is characterized in that: the height putting vertical rib on described is 200mm ~ 300mm, the end face of described concrete slab and on the spacing of putting between vertical rib end face be 50mm ~ 100mm.
Above-mentioned a kind of T-shaped plate girder precast segment unit based on steel truss and combined bridge deck, it is characterized in that: the width of described bottom support steel plate is 2.5m ~ 6m, the spacing of putting on described in adjacent twice between vertical rib is 400mm ~ 600mm.
Above-mentioned a kind of T-shaped plate girder precast segment unit based on steel truss and combined bridge deck, is characterized in that: put vertical rib on described in multiple tracks in evenly laying.
Above-mentioned a kind of T-shaped plate girder precast segment unit based on steel truss and combined bridge deck, it is characterized in that: the quantity of described combined bridge deck and described bottom load-carrying construction is multiple, multiple described bottoms load-carrying construction is parallel laying, multiple described combined bridge deck lays at grade and it connects as one formation monolithic bridge system structure, is connected between the concrete slab of adjacent two described combined bridge decks by wet seam; The left and right sides of described bottom support steel plate all extend out to outside concrete slab, and the bottom support Plate Welding of adjacent two described combined bridge decks is fixed as one.
Above-mentioned a kind of T-shaped plate girder precast segment unit based on steel truss and combined bridge deck, it is characterized in that: also comprise the direction across bridge connecting reinforcement that multiple tracks is laid from front to back, described direction across bridge connecting reinforcement from left to right in described monolithic bridge system structure on put vertical rib through hole pass; Described direction across bridge connecting reinforcement is prestressing tendon or is laid in by multiple tracks the splice bar that the plain bars in multiple described combined bridge deck is formed by connecting respectively, is set with bellows outside described prestressing tendon.
Above-mentioned a kind of T-shaped plate girder precast segment unit based on steel truss and combined bridge deck, it is characterized in that: described first rectangular steel pipe is made up of top board, base plate below described top board and the left plate be connected between top board and the base plate left and right sides and right plate, described left extension steel plate and right extension steel plate and described top board processing and fabricating are integrated.
The utility model compared with prior art has the following advantages:
1, simple, the reasonable in design and easy construction of structure, construction cost is lower.
2, can batch production be realized prefabricated, make, transport and easy for installation, construction quality is easy to ensure, artificial and machinery expenses is low, can significantly shorten the site operation duration.Due to element factory standardized production, steady quality, the bottom load-carrying construction adopted and combined bridge deck can carry out standardized production in factory, and efficiency of construction increases substantially.
3, between steel truss with combined bridge deck by put vertical rib and be connected, syndeton is simple, reasonable in design, and connects reliably.
4, deadweight is relatively light, excellent in mechanical performance and stress performance is good, bearing capacity is high, rigidity is large, on put vertical rib and be welded in upper chord top board and left and right and extend steel plate top, can effectively improve bridge deck rigidity, and on put the bonding strength that vertical rib establishes perforate can effectively strengthen between concrete slab and steel truss.
5, easy construction, can adopt welding left and right to extend the wet mode of seam of steel plate and construction concrete slab and indulge horizontally-spliced, also can apply direction across bridge connecting reinforcement during on-site consolidation construction.
6, form of construction work is flexible, and for improving the rigidity of structure and stability, alleviate integrally-built lifting weight, upper and lower chord member can building-site concrete perfusion simultaneously.
7, the good and remarkable in economical benefits of construction quality, due to element factory standardized production, structure precision is high, and construction quality is good, and thus repair rate is low.In addition, save the shaping mould trigger formwork operation of concrete slab in work progress, economy is higher.Further, the combined bridge deck adopted and bottom load-carrying construction connect into entirety and carry out stressed, compatible deformation jointly.Thus, the utility model can solve steel truss and bridge deck connectivity problem, not only substantially increases the accuracy of institute's construction molding structure, and also improves simplification and the agility of construction, also effectively can strengthen span ability and the comfort level of bridge simultaneously.
8, to have a extensive future and applied widely.
In sum, the utility model structure is simple, reasonable in design and easy construction, overall mechanical property are good, effectively can improve structure accuracy and the construction convenience of steel reinforced concrete combined bridge.
Below by drawings and Examples, the technical solution of the utility model is described in further detail.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is that vertical bridge of the present utility model is to structural representation.
Fig. 3 is direction across bridge structural representation of the present utility model.
Fig. 4 is the structural representation adopting the utility model to be assembled into monolithic bridge system structure.
Fig. 5 is the installation position schematic diagram that the utility model is assembled into direction across bridge prestressing tendon in monolithic bridge system structure.
Description of reference numerals:
1-upper chord; 1-1-the first rectangular steel pipe; 1-2-the first longitudinal stiffener;
2-lower chord; 2-1-the second rectangular steel pipe; 2-2-the second longitudinal stiffener;
3-1-left extension steel plate; 3-2-right extension steel plate; 3-3-above put vertical rib;
3-4-concrete slab; 3-5-through hole; 4-wet seam;
5-1-the first web member; 5-2-the second web member; 6-prestressing tendon.
Detailed description of the invention
A kind of T-shaped plate girder precast segment unit based on steel truss and combined bridge deck as shown in Figure 1, Figure 2 and Figure 3, comprise bottom load-carrying construction and be laid in the combined bridge deck on the load-carrying construction of described bottom, described combined bridge deck is positioned at directly over the load-carrying construction of described bottom and the two is vertical runs, and described combined bridge deck and described bottom load-carrying construction are all along the vertical bridge of institute's construction bridges to laying.
Described bottom load-carrying construction is by one upper chord 1, one lower chord 2 and is connected to the plane frame that the multiple tracks web member between upper chord 1 and lower chord 2 forms, and described lower chord 2 is positioned at immediately below upper chord 1 and the two is parallel laying.Described upper chord 1 comprises the first rectangular steel pipe 1-1, and four inside walls of described first rectangular steel pipe 1-1 are laid with the first longitudinal stiffener 1-2; Described lower chord 2 comprises the second rectangular steel pipe 2-1, and four inside walls of described second rectangular steel pipe 2-1 are laid with the second longitudinal stiffener 2-2.Described first longitudinal stiffener 1-2 and the second longitudinal stiffener 2-2 is all along the vertical bridge of institute's construction bridges to laying.
Described combined bridge deck comprises bottom support steel plate, be laid in from left to right and the multiple tracks on described bottom support steel plate put vertical rib 3-3 and build the concrete slab 3-4 on described bottom support steel plate, putting vertical rib 3-3 on described in multiple tracks all builds in concrete slab 3-4, vertical rib 3-3 is put all along the vertical bridge of institute's construction bridges to laying and it is all vertical runs with described bottom support steel plate on described in multiple tracks, the structure of putting vertical rib 3-3 on described in multiple tracks is all identical with size, putting vertical rib 3-3 on described is the elongate steel plate that middle part has multiple through hole 3-5 from front to back.Described bottom support steel plate is the rectangle supporting steel plate connected into by left extension steel plate 3-1, right extension steel plate 3-2 and the first rectangular steel pipe 1-1, described left extension steel plate 3-1 and right extension steel plate 3-2 is laid in the left and right sides of the first rectangular steel pipe 1-1 respectively, and described left extension steel plate 3-1 and right extension steel plate 3-2 connect as one with the first rectangular steel pipe 1-1 and the end face of three is mutually concordant.
In the present embodiment, the structure of multiple described through hole 3-5 is all identical with size, and described through hole 3-5 is circular.Further, multiple described through hole 3-5 is in evenly laying.
In the present embodiment, in described first rectangular steel pipe 1-1 lay the first longitudinal stiffener 1-2 quantity be four roads, first longitudinal stiffener 1-2 described in four roads is laid in the middle part of four inside walls of the first rectangular steel pipe 1-1 respectively, described first longitudinal stiffener 1-2 and its lay the first rectangular steel pipe 1-1 inside wall be vertical runs.In described second rectangular steel pipe 2-1 lay the second longitudinal stiffener 2-2 quantity be four roads, second longitudinal stiffener 2-2 described in four roads is laid in the middle part of four inside walls of the second rectangular steel pipe 2-1 respectively, described second longitudinal stiffener 2-2 and its lay the second rectangular steel pipe 2-1 inside wall be vertical runs.
In the present embodiment, described first longitudinal stiffener 1-2 is elongate steel plate and it is weldingly fixed on the inside wall of the first rectangular steel pipe 1-1.Described second longitudinal stiffener 2-2 is elongate steel plate and it is weldingly fixed on the inside wall of the second rectangular steel pipe 2-1.
Described upper chord 1 and lower chord 2 are encased structures, and described upper chord 1 also comprises first concrete structure of building in the first rectangular steel pipe 1-1, and described first longitudinal stiffener 1-2 builds in described first concrete structure; Described lower chord 2 also comprises second concrete structure of building in the second rectangular steel pipe 2-1, and described second longitudinal stiffener 2-2 builds in described second concrete structure.
Actually add man-hour, also can offer multiple circular hole from front to back in the middle part of the first longitudinal stiffener 1-2, correspondingly, in the middle part of the second longitudinal stiffener 2-2, offer multiple circular hole from front to back.
In the present embodiment, described upper chord 1 is all identical with size with the structure of lower chord 2.Described lower chord 2 is positioned at immediately below upper chord 1.
In the present embodiment, described web member is and the first web member 5-1 of upper chord 1 in vertical runs, the quantity of described first web member 5-1 is for multiple tracks and the first web member 5-1 described in multiple tracks is parallel laying, and the first web member 5-1 described in multiple tracks is in evenly laying, and the first web member 5-1 is rectangular steel pipe.
Simultaneously, four road second web member 5-2 are also provided with between first web member 5-1 described in adjacent twice, second web member 5-2 described in four roads assumes diamond in shape laying, and the second web member 5-2 described in four roads comprises web member and twice in twice to be laid in described in twice lower web member below web member, described upper abdomen masthead end is fixed on upper chord 1 and its bottom and is fixed on the middle part sidewall of the first web member 5-1, and described lower abdomen masthead end is fixed on lower chord 2 and its bottom and is fixed on the middle part sidewall of the first web member 5-1.Described first web member 5-1 with between upper chord 1 and lower chord 2, described upper web member with between upper chord 1 and the first web member 5-1 and described lower web member be all connected by connecting bolt with between lower chord 2 and the first web member 5-1.In the present embodiment, the second web member 5-2 is rectangular steel pipe.
In the present embodiment, described first rectangular steel pipe 1-1 is made up of top board, base plate below described top board and the left plate be connected between top board and the base plate left and right sides and right plate, and described left extension steel plate 3-1 and right extension steel plate 3-2 and described top board processing and fabricating are integrated.That is, described left extension steel plate 3-1 and right extension steel plate 3-2 and described top board form bottom support steel plate, and described bottom support steel plate is one block of monolithic steel plate.
Correspondingly, described second rectangular steel pipe 2-1 is also assembled by four block plates.
In the present embodiment, described combined bridge deck is that level is laid, and described bottom load-carrying construction is in vertically to laying, and the apical side height of described concrete slab 3-4 is higher than the apical side height above putting vertical rib 3-3.
During practice of construction, the height putting vertical rib 3-3 on described is 200mm ~ 300mm, the end face of described concrete slab 3-4 and on the spacing of putting between vertical rib 3-3 end face be 50mm ~ 100mm.
The width of described bottom support steel plate is 2.5m ~ 6m, and the spacing of putting on described in adjacent twice between vertical rib 3-3 is 400mm ~ 600mm.
During practice of construction, can also according to specific needs, to above put the height of vertical rib 3-3, the end face of concrete slab 3-4 and on put the spacing of putting between vertical rib 3-3 on described in spacing between vertical rib 3-3 end face, the width of bottom support steel plate and adjacent twice and adjust accordingly.
Actually add man-hour, the left and right sides of described bottom support steel plate all extend out to outside concrete slab 3-4.In the present embodiment, the width that the described bottom support steel plate left and right sides extend out to outside concrete slab 3-4 is all identical.
In the present embodiment, put vertical rib 3-3 on described in multiple tracks in evenly laying.
During practice of construction, as shown in Figure 4, Figure 5, the quantity of described combined bridge deck and described bottom load-carrying construction is multiple, multiple described bottoms load-carrying construction is parallel laying, multiple described combined bridge deck lays at grade and it connects as one formation monolithic bridge system structure, connected by wet seam 4 between the concrete slab 3-4 of adjacent two described combined bridge decks, the bottom support Plate Welding of adjacent two described combined bridge decks is fixed as one.Correspondingly, the described bottom support steel plate left and right sides width extend out to outside concrete slab 3-4 is the wide half of the seam of wet seam 4.The left and right sides that described wet seam 4 is positioned at described bottom support steel plate is stretched out directly over the steel plate sections outside concrete slab 3-4.In the present embodiment, the quantity of described combined bridge deck and described bottom load-carrying construction is 3.During practice of construction, can according to specific needs, described combined bridge deck and the quantity of described bottom load-carrying construction and the size of each combined bridge deck are adjusted accordingly.
Meanwhile, the utility model also comprises the direction across bridge connecting reinforcement that multiple tracks is laid from front to back, described direction across bridge connecting reinforcement from left to right in described monolithic bridge system structure on put vertical rib 3-3 through hole 3-5 pass.Described direction across bridge connecting reinforcement is prestressing tendon 6 or is laid in by multiple tracks the splice bar that the plain bars in multiple described combined bridge deck is formed by connecting respectively, is set with bellows outside described prestressing tendon 6.In the present embodiment, described direction across bridge connecting reinforcement is prestressing tendon 6, and prestressing tendon 6 two ends are provided with prestressed anchor.During practice of construction, described direction across bridge connecting reinforcement also can for the splice bar be formed by connecting by multiple tracks plain bars.
When reality is constructed to T-shaped plate girder precast segment unit, first assembled described bottom load-carrying construction, lay on the bottom support steel plate of described bottom load-carrying construction in multiple tracks again and put vertical rib 3-3, concreting forms concrete slab 3-4 afterwards, work progress is simple and realization is convenient, short construction period.
When described direction across bridge connecting reinforcement is prestressing tendon 6, before carrying out concreting, the multiple tracks first in construct combined bridge deck is put in vertical rib 3-3 and wears bellows, afterwards concreting again, the T-shaped plate girder precast segment unit of acquisition construction molding; Then, multiple T-shaped plate girder precast segment unit of construction molding are lifted respectively to construction location, the bellows lifting adjacent two the described combined bridge decks put in place is connected, and formed multiple respectively for the splicing tubes that prestressing tendon 6 described in multiple tracks passes, and the bottom support Plate Welding of adjacent two described combined bridge decks is integrated, build the wet seam 4 between adjacent two described combined bridge decks simultaneously; Finally, in multiple described splicing tubes, penetrate prestressing tendon 6 respectively, and stretch-draw, grouting and maintenance.
When described direction across bridge connecting reinforcement is the splice bar be formed by connecting by multiple tracks plain bars, before carrying out concreting, multiple tracks first in constructed combined bridge deck is put in vertical rib 3-3 and wears plain bars, concreting more afterwards, obtains the T-shaped plate girder precast segment unit of construction molding; Then, multiple T-shaped plate girder precast segment unit of construction molding are lifted respectively to construction location, and the plain bars lifting adjacent two the described combined bridge decks put in place is connected, form splice bar described in multiple tracks, the bottom support Plate Welding of adjacent two described combined bridge decks is integrated simultaneously, and builds the wet seam 4 between adjacent two described combined bridge decks.Wherein, before building wet seam 4, first by the sidewall dabbing of adjacent two described combined bridge decks.
The above; it is only preferred embodiment of the present utility model; not the utility model is imposed any restrictions; every above embodiment is done according to the utility model technical spirit any simple modification, change and equivalent structure change, all still belong in the protection domain of technical solutions of the utility model.
Claims (10)
1. the T-shaped plate girder precast segment unit based on steel truss and combined bridge deck, it is characterized in that: comprise bottom load-carrying construction and be laid in the combined bridge deck on the load-carrying construction of described bottom, described combined bridge deck is positioned at directly over the load-carrying construction of described bottom and the two is vertical runs, and described combined bridge deck and described bottom load-carrying construction are all along the vertical bridge of institute's construction bridges to laying, described bottom load-carrying construction is by one upper chord (1), one lower chord (2) and is connected to the plane frame that the multiple tracks web member between upper chord (1) and lower chord (2) forms, and described lower chord (2) is positioned at immediately below upper chord (1) and the two is parallel laying, described upper chord (1) comprises the first rectangular steel pipe (1-1), and four inside walls of described first rectangular steel pipe (1-1) are laid with the first longitudinal stiffener (1-2), described lower chord (2) comprises the second rectangular steel pipe (2-1), and four inside walls of described second rectangular steel pipe (2-1) are laid with the second longitudinal stiffener (2-2), described first longitudinal stiffener (1-2) and the second longitudinal stiffener (2-2) are all along the vertical bridge of institute's construction bridges to laying, described combined bridge deck comprises bottom support steel plate, be laid in from left to right and the multiple tracks on described bottom support steel plate put vertical rib (3-3) and build the concrete slab (3-4) on described bottom support steel plate, putting vertical rib (3-3) on described in multiple tracks all builds in concrete slab (3-4), vertical rib (3-3) is put all along the vertical bridge of institute's construction bridges to laying and it is all vertical runs with described bottom support steel plate on described in multiple tracks, the structure of putting vertical rib (3-3) on described in multiple tracks is all identical with size, putting vertical rib (3-3) on described for middle part has the elongate steel plate of multiple through hole (3-5) from front to back, described bottom support steel plate is the rectangle supporting steel plate connected into by left extension steel plate (3-1), right extension steel plate (3-2) and the first rectangular steel pipe (1-1), described left extension steel plate (3-1) and right extension steel plate (3-2) are laid in the left and right sides of the first rectangular steel pipe (1-1) respectively, and described left extension steel plate (3-1) and right extension steel plate (3-2) connect as one with the first rectangular steel pipe (1-1) and the end face of three is mutually concordant.
2. according to a kind of T-shaped plate girder precast segment unit based on steel truss and combined bridge deck according to claim 1, it is characterized in that: in described first rectangular steel pipe (1-1) lay the first longitudinal stiffener (1-2) quantity be four roads, first longitudinal stiffener (1-2) described in four roads is laid in the middle part of four inside walls of the first rectangular steel pipe (1-1) respectively, described first longitudinal stiffener (1-2) with its lay the first rectangular steel pipe (1-1) inside wall be vertical runs; In described second rectangular steel pipe (2-1) lay the second longitudinal stiffener (2-2) quantity be four roads, second longitudinal stiffener (2-2) described in four roads is laid in the middle part of four inside walls of the second rectangular steel pipe (2-1) respectively, described second longitudinal stiffener (2-2) with its lay the second rectangular steel pipe (2-1) inside wall be vertical runs.
3. according to a kind of T-shaped plate girder precast segment unit based on steel truss and combined bridge deck described in claim 1 or 2, it is characterized in that: described upper chord (1) and lower chord (2) are encased structures, described upper chord (1) also comprises first concrete structure of building in the first rectangular steel pipe (1-1), and described first longitudinal stiffener (1-2) is built in described first concrete structure; Described lower chord (2) also comprises second concrete structure of building in the second rectangular steel pipe (2-1), and described second longitudinal stiffener (2-2) is built in described second concrete structure.
4. according to a kind of T-shaped plate girder precast segment unit based on steel truss and combined bridge deck described in claim 1 or 2, it is characterized in that: described first longitudinal stiffener (1-2) is for elongate steel plate and it is weldingly fixed on the inside wall of the first rectangular steel pipe (1-1), described second longitudinal stiffener (2-2) for elongate steel plate and its be weldingly fixed on the inside wall of the second rectangular steel pipe (2-1).
5. according to a kind of T-shaped plate girder precast segment unit based on steel truss and combined bridge deck described in claim 1 or 2, it is characterized in that: described combined bridge deck is that level is laid, described bottom load-carrying construction is in vertically to laying, and the apical side height of described concrete slab (3-4) is higher than the apical side height above putting vertical rib (3-3).
6. according to a kind of T-shaped plate girder precast segment unit based on steel truss and combined bridge deck according to claim 5, it is characterized in that: the height putting vertical rib (3-3) on described is 200mm ~ 300mm, the end face of described concrete slab (3-4) and the spacing of above putting between vertical rib (3-3) end face are 50mm ~ 100mm; The width of described bottom support steel plate is 2.5m ~ 6m, and the spacing of putting on described in adjacent twice between vertical rib (3-3) is 400mm ~ 600mm.
7. according to a kind of T-shaped plate girder precast segment unit based on steel truss and combined bridge deck described in claim 1 or 2, it is characterized in that: put vertical rib (3-3) on described in multiple tracks in evenly laying, the left and right sides of described bottom support steel plate all extend out to concrete slab (3-4) outside.
8. according to a kind of T-shaped plate girder precast segment unit based on steel truss and combined bridge deck described in claim 1 or 2, it is characterized in that: the quantity of described combined bridge deck and described bottom load-carrying construction is multiple, multiple described bottoms load-carrying construction is parallel laying, multiple described combined bridge deck lays at grade and it connects as one formation monolithic bridge system structure, is connected between the concrete slab (3-4) of adjacent two described combined bridge decks by wet seam (4); The left and right sides of described bottom support steel plate all extend out to concrete slab (3-4) outside, and the bottom support Plate Welding of adjacent two described combined bridge decks is fixed as one.
9. according to a kind of T-shaped plate girder precast segment unit based on steel truss and combined bridge deck according to claim 8, it is characterized in that: also comprise the direction across bridge connecting reinforcement that multiple tracks is laid from front to back, described direction across bridge connecting reinforcement from left to right in described monolithic bridge system structure on put vertical rib (3-3) through hole (3-5) pass; Described direction across bridge connecting reinforcement is prestressing tendon (6) or is laid in by multiple tracks the splice bar that the plain bars in multiple described combined bridge deck is formed by connecting respectively, and described prestressing tendon (6) outside is set with bellows.
10. according to a kind of T-shaped plate girder precast segment unit based on steel truss and combined bridge deck described in claim 1 or 2, it is characterized in that: described first rectangular steel pipe (1-1) is made up of top board, base plate below described top board and the left plate be connected between top board and the base plate left and right sides and right plate, described left extension steel plate (3-1) and right extension steel plate (3-2) are integrated with described top board processing and fabricating.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104088221A (en) * | 2014-07-31 | 2014-10-08 | 长安大学 | T-shaped plate girder segment prefabricating unit based on steel truss and combined bridge deck slab |
| CN104818668A (en) * | 2015-04-22 | 2015-08-05 | 甘肃省交通规划勘察设计院有限责任公司 | Combined truss type bridge-road transition section structure integrated with bridge abutment |
| CN106149562A (en) * | 2016-06-23 | 2016-11-23 | 四川省交通运输厅公路规划勘察设计研究院 | The steel concrete combined bridge deck structure of the with holes T-shaped ribbed stiffener that a kind of uniform thickness is ultra-thin |
| CN110067186A (en) * | 2019-06-05 | 2019-07-30 | 深圳市市政设计研究院有限公司 | A kind of pipe stiffener web steel reinforced concrete combined box beam |
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2014
- 2014-07-31 CN CN201420429592.4U patent/CN204059179U/en not_active Withdrawn - After Issue
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104088221A (en) * | 2014-07-31 | 2014-10-08 | 长安大学 | T-shaped plate girder segment prefabricating unit based on steel truss and combined bridge deck slab |
| CN104088221B (en) * | 2014-07-31 | 2015-11-25 | 长安大学 | A kind of T-shaped plate girder precast segment unit based on steel truss and combined bridge deck |
| CN104818668A (en) * | 2015-04-22 | 2015-08-05 | 甘肃省交通规划勘察设计院有限责任公司 | Combined truss type bridge-road transition section structure integrated with bridge abutment |
| CN106149562A (en) * | 2016-06-23 | 2016-11-23 | 四川省交通运输厅公路规划勘察设计研究院 | The steel concrete combined bridge deck structure of the with holes T-shaped ribbed stiffener that a kind of uniform thickness is ultra-thin |
| CN106149562B (en) * | 2016-06-23 | 2018-11-23 | 四川省交通运输厅公路规划勘察设计研究院 | A kind of steel concrete combined bridge front panel of the ultra-thin T-type ribbed stiffener with holes of uniform thickness constructs |
| CN110067186A (en) * | 2019-06-05 | 2019-07-30 | 深圳市市政设计研究院有限公司 | A kind of pipe stiffener web steel reinforced concrete combined box beam |
| CN110067186B (en) * | 2019-06-05 | 2024-03-19 | 深圳市市政设计研究院有限公司 | Steel pipe stiffening web steel-concrete combined box girder |
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