CN216891982U - Steel-concrete combined bridge deck system - Google Patents
Steel-concrete combined bridge deck system Download PDFInfo
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- CN216891982U CN216891982U CN202123207689.XU CN202123207689U CN216891982U CN 216891982 U CN216891982 U CN 216891982U CN 202123207689 U CN202123207689 U CN 202123207689U CN 216891982 U CN216891982 U CN 216891982U
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Abstract
The utility model discloses a steel-concrete combined bridge deck system which comprises an L-shaped steel longitudinal beam, an edge support, shear nails, an inverted T-shaped steel longitudinal beam, longitudinal stiffening ribs, transverse stiffening ribs, a middle support, a transverse trapezoidal support steel plate, a connecting steel plate, bolts, longitudinal I-shaped steel, transverse connecting rib plates, a connecting cross beam, a bottom die steel longitudinal beam, a bottom template, a middle hoop, an edge hoop, transverse ribs, hanging ribs, distributed reinforcing steel bars, longitudinal main ribs and concrete. The utility model has reasonable structure and convenient construction, can realize the standardized construction of bridges and greatly improve the construction efficiency.
Description
Technical Field
The utility model relates to the field of bridge construction systems, in particular to a steel-concrete combined bridge deck system.
Background
The deck slab, also called a roadway slab, is a load-bearing structure for directly bearing the wheel pressure of a vehicle, and is usually of a prestressed concrete structure. The curved overpass for the highway and the urban road is influenced by the road traffic under the bridge or the height of a structural building, and is not suitable for building a support for cast-in-place concrete beam construction, so that the steel-concrete combined continuous beam bridge provided with the concrete bridge deck becomes the main form of the structure. The steel-concrete composite beam bridge deck system adopts a combined structure to form an important direction for the exploration and development of the engineering world in recent years. The steel-concrete combined bridge deck has the characteristics of low height, light dead weight, large ultimate bearing capacity, easiness in processing and manufacturing and the like, and can replace a conventional concrete bridge deck. The steel-concrete composite bridge deck has been widely applied to medium and small span bridges. Steel and concrete connecting piece are fragile in the construction of current steel reinforced concrete combination decking, and the wholeness is poor, and to the great condition of bridge floor width, generally adopt the form that sets up vertical wet joint to connect, and this kind of construction mode process is complicated, and the engineering volume is big, influences the wholeness simultaneously.
Therefore, the steel-concrete combined bridge deck and the construction method thereof which have the advantages of reasonable structure, simple and convenient construction, high efficiency, strong integrity and good rigidity are needed to be found out very importantly at present.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a steel-concrete combined bridge deck system to solve the problem that the construction of a steel-concrete combined bridge deck in the prior art is complex.
In order to achieve the purpose, the technical scheme adopted by the utility model is as follows:
the steel-concrete combined bridge deck system comprises L-shaped steel longitudinal beams (1) which are transversely and symmetrically distributed on a cover beam (3) and inverted T-shaped steel longitudinal beams (5) which are positioned between the two L-shaped steel longitudinal beams (1) on the cover beam (3), wherein the bottom of a horizontal section of each L-shaped steel longitudinal beam (1) and the bottom of a horizontal section of each inverted T-shaped steel longitudinal beam (5) are respectively fixed on the cover beam (3), two ends of the horizontal section of each inverted T-shaped steel longitudinal beam (5) are respectively opposite to the end parts of the horizontal sections of the two L-shaped steel longitudinal beams (1) in a one-to-one correspondence manner, and two side surfaces of a vertical section of each inverted T-shaped steel longitudinal beam (5) are respectively opposite to the inner side surfaces of the vertical sections of the two L-shaped steel longitudinal beams (1) in a one-to-one correspondence manner;
a plurality of transverse stiffening ribs (7) are connected between the inner side surface of the vertical section and the top surface of the horizontal section of each L-shaped steel longitudinal beam (1), a plurality of transverse stiffening ribs are also connected between the top surface of the horizontal section and the corresponding side surface of the vertical section of each inverted T-shaped steel longitudinal beam (5), the plurality of transverse stiffening ribs on each L-shaped steel longitudinal beam (1) are longitudinally distributed, and a plurality of transverse beam stiffening ribs on each side of the vertical section on each inverted T-shaped steel longitudinal beam (5) are also longitudinally distributed; the top of each transverse stiffening rib on each L-shaped steel longitudinal beam (1) is fixedly supported with a longitudinal stiffening rib (6), and the top of each transverse stiffening rib on each side of the vertical section on the inverted T-shaped steel longitudinal beam (5) is also fixedly supported with a longitudinal stiffening rib; the lower side edge of each transverse stiffening rib on each L-shaped longitudinal beam (1) is respectively and fixedly connected with a transverse trapezoidal support steel plate (10), the lower side edge of each transverse stiffening rib on each side of the vertical section on the inverted T-shaped longitudinal beam (5) is also respectively and fixedly connected with a transverse trapezoidal support steel plate, the top of each transverse trapezoidal support steel plate (10) corresponding to each L-shaped longitudinal beam (1) is fixedly supported with a longitudinal I-shaped steel (13), the top of each transverse trapezoidal support steel plate corresponding to each side of the vertical section on the inverted T-shaped longitudinal beam (5) is also fixedly supported with a longitudinal I-shaped steel, and therefore the longitudinal I-shaped steel on each side of the vertical section on the inverted T-shaped longitudinal beam (5) is longitudinally opposite to the longitudinal I-shaped steel corresponding to the L-shaped longitudinal beam (1) in the corresponding direction;
in the longitudinal I-beams (13) which are longitudinally opposite, one surface of each longitudinal I-beam (13) facing to the opposite longitudinal I-beam is respectively fixed with a plurality of transverse connecting rib plates (14) which are longitudinally distributed, and the transverse connecting rib plates (14) of the longitudinal I-beams (13) which are longitudinally opposite are in one-to-one correspondence with each other; in longitudinal I-shaped steel (13) which are longitudinally opposite, connecting cross beams (15) are respectively and fixedly connected between transverse connecting rib plates (14) which are in one-to-one correspondence with each other, and therefore, a plurality of connecting cross beams (15) which are longitudinally arranged are respectively arranged on each side of the vertical section of the inverted T-shaped steel longitudinal beam (5);
a plurality of bottom die steel longitudinal beams (16) are erected and fixed on the top surfaces of the connecting cross beams (15) in each side direction of the upper vertical section of the inverted T-shaped steel longitudinal beam (5), a plurality of bottom die steel longitudinal beams are also fixed on the two longitudinal I-shaped steels (13) in each side direction of the upper vertical section of the inverted T-shaped steel longitudinal beam (5), and a bottom die plate (17) is laid and fixed on each bottom die steel longitudinal beam (16) in each side direction of the upper vertical section of the inverted T-shaped steel longitudinal beam (5);
the upper end of the vertical section of the inverted T-shaped steel longitudinal beam (5) is reversely hooped and fixed with a middle hoop (18), the upper part of the inner side surface of the vertical section of each L-shaped steel longitudinal beam (1) is respectively fixed with a side hoop (19), the positions of the middle hoop (18) and the side hoop (19) correspond to each other, a plurality of transverse ribs (23) which are longitudinally distributed are respectively erected and fixed between each side of the top of the middle hoop (18) and the top of the side hoop (19) corresponding to each other, the bottom of each transverse rib (23) is respectively and fixedly connected with a plurality of hanging ribs (24), a distribution reinforcing steel bar (25) is fixedly connected between the lower ends of each hanging rib (24) at the bottom of each transverse rib (23), therefore, a plurality of longitudinally distributed reinforcing steel bars (25) are arranged in the direction of each side of the vertical section on the inverted T-shaped steel longitudinal beam (5), and a plurality of longitudinal main reinforcing steel bars (26) are erected and fixed on each distribution reinforcing steel bar (25) in the direction of each side of the vertical section on each side of the inverted T-shaped steel longitudinal beam (5), the area between the top surface of the bottom formwork (17) on each side and the plane where the upper end of the L-shaped steel longitudinal beam (1) is located serves as a concrete filling area, and the side corresponding to the middle hoop (18), the side hoop (19), the transverse rib (23), the distribution reinforcing steel bar (25) and the longitudinal main rib (26) support filled concrete on each side.
Furthermore, the upper end of the vertical section of the L-shaped steel longitudinal beam (1) upwards exceeds the upper end of the vertical section of the inverted T-shaped steel longitudinal beam (5), so that the filled concrete submerges the upper end of the vertical section of the inverted T-shaped steel longitudinal beam (5), and the middle hoop (18) integrally supports the filled concrete inside.
Furthermore, a plurality of shear nails (4) distributed along the longitudinal direction are respectively fixed on each longitudinal stiffening rib (6), and the filled concrete is connected and fixed inside by the shear nails (4).
Furthermore, the trapezoidal support steel plate (10) is connected and fixed with the lower side edge of each transverse stiffening rib on each L-shaped steel longitudinal beam (1) and the lower side edge of each transverse stiffening rib on each vertical section on the inverted T-shaped steel longitudinal beam (5) through a connecting steel plate (11).
The utility model has the following characteristics and beneficial effects:
1. compared with the prior art, the steel-concrete combined bridge deck slab has a reasonable structure, is convenient and fast to construct, can solve the problems of supports and templates in cast-in-place, can serve as a part of stress of a bridge deck system, reduces steel indexes of a main structure by reducing the thickness of the bridge deck slab, and improves the overall economy of a bridge.
2. According to the reinforced concrete combined bridge deck, the girder stress steel structures adopted by the reinforced concrete combined bridge deck are all prefabricated structures, the structure is simple, the installation is convenient, the standardized construction of a bridge can be realized, the construction efficiency is greatly improved, and the material consumption is reduced.
3. The shear nails, the middle hoops and the side hoops are arranged in the steel-concrete combined structure, so that the integrity of the steel-concrete combined structure is effectively enhanced, and the integral rigidity and the stability of the bridge are improved.
Drawings
FIG. 1 is a schematic cross-sectional view of an L-section steel stringer and an inverted T-section steel stringer.
Fig. 2 is a longitudinal structural view of an L-shaped steel stringer.
Fig. 3 is a longitudinal configuration diagram of an inverted T-shaped steel stringer.
Fig. 4 is a mounting arrangement of the transverse trapezoidal support steel plates.
Fig. 5 is a mounting arrangement of the longitudinal i-beams.
Fig. 6 is a schematic view of the vertical cross-section A-A in fig. 5.
Fig. 7 is a mounting arrangement of the tie beam.
Fig. 8 is an installation layout view of bottom die steel stringers.
Fig. 9 is a view of the installation layout of the bottom form.
Fig. 10 is a view of the installation arrangement of the middle and side hoops.
FIG. 11 is a schematic view of the vertical cross-sectional configuration B-B in FIG. 10.
Fig. 12 is a mounting arrangement diagram of the transverse bar.
Fig. 13 is a view of the installation layout of the distribution reinforcement.
Fig. 14 is a mounting arrangement diagram of the longitudinal cage bars.
Fig. 15 is a schematic sectional view of a steel-concrete composite bridge deck.
FIG. 16 is a schematic view of the vertical cross-sectional configuration of C-C in FIG. 15.
Fig. 17 is a schematic view of a finished section of a steel-concrete composite bridge deck.
Fig. 18 is a flow chart of a construction process of the steel-concrete composite bridge deck.
Wherein: 1-L-shaped steel longitudinal beam; 2-side support; 3-cover beam; 4-shear pin; 5-inverted T-shaped steel longitudinal beam; 6-longitudinal stiffening rib; 7-transverse stiffener; 8-bolt holes; 9-middle support; 10-transverse trapezoidal supporting steel plates; 11-connecting steel plate; 12-bolt; 13-longitudinal I-steel; 14-transverse connecting rib plate; 15-connecting the beam; 16-bottom die steel longitudinal beam; 17-bottom form; 18-middle hoop; 19-side hoop; 20-rectangular wrapping stirrup; 21-diagonal bracing ribs; 22-rectangular stirrup; 23-transverse bar; 24-hanging ribs; 25-distributing the steel bars; 26-longitudinal main rib; 27-concrete.
Detailed Description
The utility model is further illustrated with reference to the following figures and examples.
As shown in fig. 1-17, the steel-concrete composite bridge deck system of the utility model comprises a capping beam 3, two side supports 2 are fixed on the top of the capping beam 3, the two side supports 2 are transversely distributed from left to right, and a middle support 9 is fixed on the top of the capping beam 3 between the two side supports 2.
Be equipped with L shaped steel longeron 1 on every limit support 2 respectively, it is concrete, on L shaped steel longeron 1's horizontal segment bottom was fixed in corresponding limit support 2, the vertical section medial surface of left side L shaped steel longeron 1 right, the vertical section medial surface of right side L shaped steel longeron 1 left. Be equipped with inverted T shaped steel longeron 5 on the intermediate support 9, it is concrete, inverted T shaped steel longeron 5's horizontal segment bottom is fixed in on the intermediate support 9, inverted T shaped steel longeron 5's vertical section left surface is relative with the 1 vertical section medial surface of L shaped steel longeron of left side survey, inverted T shaped steel longeron 5's vertical section right surface is relative with the 1 vertical section medial surface of L shaped steel longeron of right side survey, inverted T shaped steel longeron 5's horizontal segment left and right side corresponds respectively with 1 horizontal segment tip of left side L shaped steel longeron, the horizontal segment tip of right side L shaped steel longeron 1 is relative. And the heights of the upper ends of the vertical sections of the left L-shaped steel longitudinal beam 1 and the right L-shaped steel longitudinal beam 1 are the same and are higher than the upper end of the vertical section of the inverted T-shaped steel longitudinal beam 5.
A plurality of transverse stiffening ribs 7 are fixedly connected between the inner side surface of the vertical section and the top surface of the horizontal section of the L-shaped steel longitudinal beam 1 on each side, and the plurality of transverse stiffening ribs 7 are longitudinally distributed. A plurality of transverse stiffening ribs are also connected between the top surface of the horizontal section and the corresponding side surface of the vertical section of the inverted T-shaped steel longitudinal beam 5, and the transverse stiffening ribs are also longitudinally distributed. The positions of the plurality of transverse stiffening ribs in the left and right directions of the vertical section of the inverted T-shaped steel longitudinal beam 5 correspond to the positions of the plurality of transverse stiffening ribs of the corresponding side L-shaped steel longitudinal beam 1 one by one. And the upper ends of the transverse stiffening ribs 7 are the same in height and are lower than the upper ends of the vertical sections of the inverted T-shaped steel longitudinal beams 5.
The top parts of the transverse stiffening ribs on the L-shaped steel longitudinal beams 1 on each side are jointly supported and fixed with a longitudinal stiffening rib 6 extending along the longitudinal direction. The top of each transverse stiffening rib in each side direction of the vertical section on the inverted T-shaped steel longitudinal beam 5 is also supported and fixed with a longitudinal stiffening rib along the longitudinal part. Two longitudinal stiffening ribs 6 on each side of the vertical section of the inverted T-shaped steel longitudinal beam 5 are opposite in position, and the top surfaces of the longitudinal stiffening ribs 6 are the same in height and are lower than the upper end of the vertical section of the inverted T-shaped steel longitudinal beam 5. The top surface of each longitudinal stiffening rib 6 is respectively fixed with a plurality of shear nails 4 distributed along the longitudinal direction.
Each 7 lower part sides of transverse stiffening ribs on the L-shaped steel longitudinal beam 1 of each side are respectively and fixedly connected with a trapezoidal supporting steel plate 10 through a connecting steel plate 11 and a bolt 12, each lower part side of transverse stiffening ribs on the left side and the right side of the vertical section of the inverted T-shaped steel longitudinal beam 5 is also respectively and fixedly connected with a trapezoidal supporting steel plate 10 through a connecting steel plate, and the trapezoidal supporting steel plates 10 on each side of the vertical section of the inverted T-shaped steel longitudinal beam 5 correspond to the trapezoidal supporting steel plates 10 on the corresponding side L-shaped steel longitudinal beam 1 in position one-to-one mode. The top surfaces of the trapezoidal supporting steel plates 10 are the same in height and are lower than the upper ends of the connected transverse stiffening ribs 7.
The top of each trapezoidal support steel plate 10 corresponding to the L-shaped steel longitudinal beam 1 on each side supports and is fixed with a longitudinal I-shaped steel 13 extending along the longitudinal direction, and the plurality of trapezoidal support steel plates in the left and right directions of the vertical section of the inverted T-shaped steel longitudinal beam 5 support and are fixed with longitudinal I-shaped steel respectively. Therefore, two longitudinal I-shaped steels 13 which are longitudinally opposite are respectively arranged in the left and right directions of the vertical section of the inverted T-shaped steel longitudinal beam 5. The top surfaces of the longitudinal I-beams 13 have the same height and are lower than the bottom surfaces of the longitudinal stiffening ribs 6.
In two longitudinal I-beams 13 which are longitudinally opposite on each side, a plurality of transverse connecting rib plates 14 which are longitudinally distributed are respectively fixed on one surface of each longitudinal I-beam 13 facing to the longitudinal I-beam on the opposite side, and the transverse connecting rib plates 14 of the longitudinal I-beams 13 which are longitudinally opposite are in one-to-one correspondence with each other. The connecting cross beams 15 are fixedly connected between the transverse connecting rib plates 14 corresponding to each side one by one, so that a plurality of connecting cross beams 15 arranged along the longitudinal direction are respectively arranged on the left side and the right side of the vertical section of the inverted T-shaped steel longitudinal beam 5. The top side of each connecting cross beam 15 has the same height and is flush with the top surface of the longitudinal I-shaped steel 13.
And a plurality of bottom die steel longitudinal beams 16 extending along the longitudinal direction are erected and fixed on the top surfaces of the connecting cross beams 15 in each side direction of the vertical section of the inverted T-shaped steel longitudinal beam 5. And a plurality of bottom die steel longitudinal beams extending longitudinally are also fixed on the top surfaces of two opposite longitudinal I-shaped steels 13 in each side direction of the upper vertical section of the inverted T-shaped steel longitudinal beam 5. And bottom templates 17 are respectively and jointly paved and fixed on each bottom die steel longitudinal beam 16 in each side direction of the vertical section on the inverted T-shaped steel longitudinal beam 5, the top surfaces of the bottom templates 17 are flush with the top surfaces of the longitudinal stiffening ribs 6, and two side edges of each bottom template 17 abut against the lateral surfaces of the transverse stiffening ribs 7 and the longitudinal stiffening ribs 6 on the corresponding side.
The vertical section upper end of the inverted T-shaped longitudinal beam 5 is provided with the middle hoop 18, concretely, the middle hoop 18 comprises a rectangular hoop 22 forming a rectangular outer framework, an opening is formed in the middle of the bottom of the rectangular hoop 22, the rectangular hoop 22 is fixed to the vertical section upper end of the inverted T-shaped longitudinal beam 5 through the bottom opening inverted hoop, the upper end of the vertical section of the inverted T-shaped longitudinal beam 5 divides the inside of the rectangular hoop 22 into two parts, and the two parts inside the rectangular hoop 22 are fixedly connected with a plurality of inclined supporting ribs 21 respectively.
Every 1 vertical section medial surface upper portion of L shaped steel longeron is fixed with side hoop 19 respectively, and side hoop 19 is including the rectangle stirrup that forms the rectangle exoskeleton, and rectangle stirrup one side fixed connection is in corresponding 1 medial surface upper portion of L shaped steel longeron, a plurality of bracing muscle of the inside fixedly connected with of rectangle stirrup.
The middle hoop 18 corresponds to the side hoop 19 in position, the left side and the right side of the middle hoop 18 extend to the side hoop 19 in the corresponding direction respectively, and the top surfaces of the middle hoop 18 and the side hoop 19 are the same in height and are lower than the upper end of the vertical section of the L-shaped steel longitudinal beam 1. Erect respectively between the 19 tops of the side hoop of the left and right sides in middle hoop 18 top and corresponding side and be fixed with a plurality of horizontal muscle 23 along longitudinal distribution, every 23 bottoms of horizontal muscle respectively fixedly connected with a plurality of hanging muscle 24 along transverse distribution, the common fixedly connected with distribution reinforcing bar 25 of 24 lower extremes of each hanging muscle of every 23 bottoms of horizontal muscle, have a plurality of longitudinal distribution's distribution reinforcing bar 25 respectively in the left and right side direction of the 5 vertical sections of T shaped steel longeron that fall from this. A plurality of longitudinal main reinforcements 26 extending in the longitudinal direction are erected and fixed on each distributed reinforcement 25 in the direction of each side of the vertical section of the inverted T-shaped steel longitudinal beam 5.
After the structure is built, the areas between the top surfaces of the left and right bottom templates 17 and the plane where the upper end of the L-shaped steel longitudinal beam 1 is located are used as concrete filling areas, concrete is filled in the areas on the left and right sides respectively, the middle hoops 18 and the side hoops 19 are submerged by the concrete until the top surface of the concrete is flush with the upper end of the L-shaped steel longitudinal beam 1, and therefore the pavement slab of the bridge body is formed by the concrete.
After concrete is filled and poured, the bottom formwork 17, the bottom die steel longitudinal beam 16, the connecting cross beam 15, the transverse connecting rib plate 14, the longitudinal I-shaped steel 13, the trapezoidal support steel plate 10, the connecting steel plate 11 and the bolt 12 are removed after the concrete is fixedly formed, and therefore the bridge body which is constructed is obtained. Inside the concrete pavement slab of the bridge body, the filled concrete is supported and connected together by the middle hoop 18, the side hoop 19, the transverse bar 23, the distributed reinforcing steel bars 25, the longitudinal main bar 26 and the shear nails 4.
As shown in fig. 18, the construction method of the present invention includes the steps of:
1. hoisting the L-shaped steel longitudinal beam 1 and the inverted T-shaped steel longitudinal beam 5: welding transverse stiffening ribs 7 at certain intervals on the inner side of the L-shaped steel longitudinal beam 1 and two sides of the inverted T-shaped steel longitudinal beam 5, welding a longitudinal stiffening rib 6 between the top of the transverse stiffening rib 7 and the steel longitudinal beam, welding and mounting shear nails 4 at certain intervals on the longitudinal stiffening rib 6, then respectively hoisting the processed L-shaped steel longitudinal beam 1 and the inverted T-shaped steel longitudinal beam 5 onto the side support 2 and the middle support 9 of the cover beam 3, and performing drop installation;
2. installing a transverse trapezoidal support steel plate 10: selecting a steel plate with the same thickness as the transverse stiffening rib 7 to manufacture a right-angle transverse trapezoidal support steel plate 10, wherein a right-angle edge is abutted against the transverse stiffening rib 7, a lower bottom edge is a short edge and is flush with the bottom edges of the L-shaped steel longitudinal beam 1 and the inverted T-shaped steel longitudinal beam 5 respectively, and then, installing and connecting the steel plates 11 and fastening by using bolts 12;
3. hoisting the longitudinal I-shaped steel 13: transverse connecting rib plates 14 with bolt holes 8 are welded on one side of the longitudinal I-shaped steel 13 at intervals, and then the transverse connecting rib plates are respectively hoisted to the transverse trapezoidal support steel plates 10 on one side of the L-shaped steel longitudinal beam 1 and the transverse trapezoidal support steel plates 10 on two sides of the inverted T-shaped steel longitudinal beam 5 by a crane;
4. mounting the connecting cross beam 15: manufacturing a vertical concave folding type connecting beam 15 with bolt holes 8 at two ends in advance, hoisting the connecting beam 15 by a crane to enable the two ends of the connecting beam 15 and the bolt holes 8 of transverse connecting rib plates 14 at two sides to be aligned with each other, enabling the connecting beam 15 to be consistent with the top surface elevation of a longitudinal I-shaped steel 13, and then fastening and connecting by using bolts 12;
5. hoisting bottom die steel longitudinal beams 16: after hoisting the bottom die steel longitudinal beam 16, arranging the bottom die steel longitudinal beam on the top surfaces of the connecting cross beam 15 and the longitudinal I-shaped steel 13 at intervals;
6. hoisting the bottom template 17: after the bottom template 17 is lifted, the bottom template is installed on a bottom die steel longitudinal beam 16, and after the bottom template 17 is installed, the top surface elevation of the transverse stiffening rib 7 is consistent with that of the transverse stiffening rib;
7. the side hoops 19 and the middle hoops 18 are respectively welded on the L-shaped longitudinal beam 1 and the inverted T-shaped longitudinal beam 5: firstly, manufacturing a rectangular wrapping hoop 20 with a notch at the bottom and a rectangular hoop 22 with a notch at the side part, then welding a diagonal brace 21 inside the rectangular wrapping hoop 20 and the rectangular hoop 22 to form a middle hoop 18 and an edge hoop 19, then sleeving the middle hoop 18 into the top of the inverted T-shaped longitudinal beam 5 through the notch at the bottom to be firmly welded, welding the notched side part of the edge hoop 19 on the inner side of the upper part of the L-shaped longitudinal beam 1, and ensuring that the top surface elevations of the middle hoop 18 and the edge hoop 19 are consistent;
8. welding the transverse bar 23 with the hanging bar 24: welding hanging ribs 24 perpendicular to the transverse ribs 23 at certain intervals on one sides of the transverse ribs 23, hoisting the transverse ribs 23 onto the middle hoops 18 and the side hoops 19 with the hanging ribs 24 facing downwards, and then firmly welding the two ends of the transverse ribs 23 with the middle hoops 18 and the side hoops 19 respectively;
9. the lower end of the hanging bar 24 is welded with a distribution steel bar 25, and the two ends of the distribution steel bar 25 are respectively welded with the middle hoop 18 and the side hoop 18 firmly, so that the bottom edge top surface elevations of the distribution steel bar 25, the middle hoop 18 and the side hoop 19 are ensured to be consistent;
10. binding longitudinal main reinforcements 26 on the distributed reinforcements 25, the side hoops 19 and the middle hoops 18;
11. pouring concrete 27 into a space formed by the bottom template 17 and the L-shaped steel longitudinal beams 1 on two sides;
12. and after the hardening strength of the concrete 27 meets the requirement, sequentially removing the bottom die steel longitudinal beam 16, the bottom die plate 17, the connecting cross beam 15, the longitudinal I-shaped steel 13 and the transverse trapezoid supporting steel plate 10 to finish the construction operation of the steel-concrete composite bridge deck.
The embodiments of the present invention are described only for the preferred embodiments of the present invention, and not for the limitation of the concept and scope of the present invention, and various modifications and improvements made to the technical solution of the present invention by those skilled in the art without departing from the design concept of the present invention shall fall into the protection scope of the present invention, and the technical content of the present invention which is claimed is fully set forth in the claims.
Claims (4)
1. The steel-concrete combined bridge deck system is characterized in that: the steel cover comprises L-shaped steel longitudinal beams (1) which are transversely and symmetrically distributed on a cover beam (3) and inverted T-shaped steel longitudinal beams (5) which are positioned between the two L-shaped steel longitudinal beams (1) on the cover beam (3), wherein the bottom of the horizontal section of each L-shaped steel longitudinal beam (1) and the bottom of the horizontal section of each inverted T-shaped steel longitudinal beam (5) are respectively fixed on the cover beam (3), the two ends of the horizontal section of each inverted T-shaped steel longitudinal beam (5) are respectively opposite to the end parts of the horizontal sections of the two L-shaped steel longitudinal beams (1) in a one-to-one correspondence manner, and the two side surfaces of the vertical section of each inverted T-shaped steel longitudinal beam (5) are respectively opposite to the inner side surfaces of the vertical sections of the two L-shaped steel longitudinal beams (1) in a one-to-one correspondence manner;
a plurality of transverse stiffening ribs (7) are connected between the inner side surface of the vertical section and the top surface of the horizontal section of each L-shaped steel longitudinal beam (1), a plurality of transverse stiffening ribs are also connected between the top surface of the horizontal section and the corresponding side surface of the vertical section of each inverted T-shaped steel longitudinal beam (5), the plurality of transverse stiffening ribs on each L-shaped steel longitudinal beam (1) are longitudinally distributed, and a plurality of transverse beam stiffening ribs on each side of the vertical section on each inverted T-shaped steel longitudinal beam (5) are also longitudinally distributed; the top of each transverse stiffening rib on each L-shaped steel longitudinal beam (1) is supported and fixed with a longitudinal stiffening rib (6), and the top of each transverse stiffening rib on each side of the vertical section on the inverted T-shaped steel longitudinal beam (5) is also supported and fixed with a longitudinal stiffening rib; the lower side edge of each transverse stiffening rib on each L-shaped longitudinal beam (1) is respectively and fixedly connected with a transverse trapezoidal support steel plate (10), the lower side edge of each transverse stiffening rib on each side of the vertical section on the inverted T-shaped longitudinal beam (5) is also respectively and fixedly connected with a transverse trapezoidal support steel plate, the top of each transverse trapezoidal support steel plate (10) corresponding to each L-shaped longitudinal beam (1) is fixedly supported with a longitudinal I-shaped steel (13), the top of each transverse trapezoidal support steel plate corresponding to each side of the vertical section on the inverted T-shaped longitudinal beam (5) is also fixedly supported with a longitudinal I-shaped steel, and therefore the longitudinal I-shaped steel on each side of the vertical section on the inverted T-shaped longitudinal beam (5) is longitudinally opposite to the longitudinal I-shaped steel corresponding to the L-shaped longitudinal beam (1) in the corresponding direction;
in the longitudinal I-beams (13) which are longitudinally opposite, one surface of each longitudinal I-beam (13) facing to the opposite longitudinal I-beam is respectively fixed with a plurality of transverse connecting rib plates (14) which are longitudinally distributed, and the transverse connecting rib plates (14) of the longitudinal I-beams (13) which are longitudinally opposite are in one-to-one correspondence with each other; in longitudinal I-shaped steel (13) which are longitudinally opposite, connecting cross beams (15) are respectively and fixedly connected between transverse connecting rib plates (14) which are in one-to-one correspondence with each other, and therefore, a plurality of connecting cross beams (15) which are longitudinally arranged are respectively arranged on each side of the vertical section of the inverted T-shaped steel longitudinal beam (5);
a plurality of bottom die steel longitudinal beams (16) are erected and fixed on the top surfaces of the connecting cross beams (15) in each side direction of the upper vertical section of the inverted T-shaped steel longitudinal beam (5), a plurality of bottom die steel longitudinal beams are also fixed on the two longitudinal I-shaped steels (13) in each side direction of the upper vertical section of the inverted T-shaped steel longitudinal beam (5), and a bottom die plate (17) is laid and fixed on each bottom die steel longitudinal beam (16) in each side direction of the upper vertical section of the inverted T-shaped steel longitudinal beam (5);
the upper end of the vertical section of the inverted T-shaped steel longitudinal beam (5) is reversely hooped and fixed with a middle hoop (18), the upper part of the inner side surface of the vertical section of each L-shaped steel longitudinal beam (1) is respectively fixed with a side hoop (19), the positions of the middle hoop (18) and the side hoop (19) correspond to each other, a plurality of transverse ribs (23) which are longitudinally distributed are respectively erected and fixed between each side of the top of the middle hoop (18) and the top of the side hoop (19) corresponding to each other, the bottom of each transverse rib (23) is respectively and fixedly connected with a plurality of hanging ribs (24), a distribution reinforcing steel bar (25) is fixedly connected between the lower ends of each hanging rib (24) at the bottom of each transverse rib (23), therefore, a plurality of longitudinally distributed reinforcing steel bars (25) are arranged in the direction of each side of the vertical section on the inverted T-shaped steel longitudinal beam (5), and a plurality of longitudinal main reinforcing steel bars (26) are erected and fixed on each distribution reinforcing steel bar (25) in the direction of each side of the vertical section on each side of the inverted T-shaped steel longitudinal beam (5), the area between the top surface of the bottom formwork (17) on each side and the plane where the upper end of the L-shaped steel longitudinal beam (1) is located serves as a concrete filling area, and the side corresponding to the middle hoop (18), the side hoop (19), the transverse rib (23), the distribution reinforcing steel bar (25) and the longitudinal main rib (26) support filled concrete on each side.
2. The steel-concrete composite bridge deck system according to claim 1, wherein: the upper end of the vertical section of the L-shaped steel longitudinal beam (1) upwards exceeds the upper end of the vertical section of the inverted T-shaped steel longitudinal beam (5), so that the filled concrete submerges the upper end of the vertical section of the inverted T-shaped steel longitudinal beam (5), and the middle hoop (18) integrally supports the filled concrete inside.
3. The steel-concrete composite bridge deck system according to claim 1, wherein: a plurality of shear nails (4) distributed longitudinally are respectively fixed on each longitudinal stiffening rib (6), and the filled concrete is connected and fixed inside by the shear nails (4).
4. The steel-concrete composite bridge deck system according to claim 1, wherein: the trapezoidal support steel plate (10) is connected and fixed with each transverse stiffening rib lower side edge on each L-shaped steel longitudinal beam (1) and each transverse stiffening rib lower side edge on each vertical section on the inverted T-shaped steel longitudinal beam (5) through the connecting steel plate (11).
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| CN202123207689.XU CN216891982U (en) | 2021-12-20 | 2021-12-20 | Steel-concrete combined bridge deck system |
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| CN202123207689.XU CN216891982U (en) | 2021-12-20 | 2021-12-20 | Steel-concrete combined bridge deck system |
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