CN212742154U - Steel reinforced concrete arch bridge - Google Patents
Steel reinforced concrete arch bridge Download PDFInfo
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- CN212742154U CN212742154U CN202021013582.4U CN202021013582U CN212742154U CN 212742154 U CN212742154 U CN 212742154U CN 202021013582 U CN202021013582 U CN 202021013582U CN 212742154 U CN212742154 U CN 212742154U
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Abstract
The utility model discloses a steel reinforced concrete arch bridge with multiple arches, which comprises a bridge deck structure, wherein the bridge deck structure is erected on a bridge deck beam supporting structure; bridge face roof beam bearing structure is provided with a plurality of middle foundations of linking the arch including the arched bridge abutment that sets up both ends between two arched bridge abutments in the interval, arched bridge abutment includes the abutment cushion cap, abutment cushion cap below disposes abutment pile foundation, abutment cushion cap surface is provided with the end hunch seat, be provided with the abutment front wall that is used for supporting bridge floor structure on the end hunch seat, it includes the cushion cap to link the arch middle foundation, the cushion cap below disposes and links arch pile foundation, arched bridge cushion cap surface sets up the hunch seat, between end hunch seat and the hunch seat, all be provided with shaped steel skeleton owner hunch circle between the hunch seat. The utility model can reduce construction period, lower construction cost and have stronger adaptability; the number of arch spans is increased along with the arch bridging, the utility model discloses the advantage strengthens gradually.
Description
Technical Field
The utility model relates to a bridge field, concretely relates to shaped steel concrete arch bridge that encircles even.
Background
The porous multi-arch concrete arch bridge has beautiful curve and perfect structural rhythm, is matched with the effect of stone imitation, shows more classical interest, and is widely adopted in landscape characteristic positions such as parks, green streets and the like.
When the water surface is large, the number of the arch bridges is large due to the limitation of the span of the concrete arch bridge. The concrete arch bridge superstructure construction generally adopts full hall support construction, and when arch bridge chain arch was in a large number, temporary support engineering volume was huge, and the full hall support was set up and is needed to fill soil to above the surface of water temporarily usually before, and it is big to fill out the excavation, still faces many processes such as support set up, pre-compaction and demolish, and the construction is complicated. And the soil filling causes pollution to water, hinders flood control, cannot fill soil in places with strict requirements on environmental protection and flood control, needs to set up a temporary steel trestle, and has high construction measure cost and long construction period of setting up and dismantling.
Disclosure of Invention
An object of the utility model is to overcome prior art's is not enough, provides a shaped steel concrete arch bridge that superstructure can convenient be under construction.
In order to achieve the purpose, the utility model designs a section steel concrete arch bridge with multiple arches, which comprises a bridge deck structure, wherein the bridge deck structure is erected on a bridge deck beam supporting structure; the bridge deck beam supporting structure comprises arch bridge abutments at two ends, a plurality of arch-connected middle foundations are arranged between the two arch bridge abutments at intervals, each arch bridge abutment comprises a bridge abutment cushion cap, a bridge abutment grouped pile foundation is arranged below the bridge abutment cushion cap, an end arch base is arranged on the surface of the bridge abutment cushion cap, a bridge deck front wall used for supporting a bridge deck structure is arranged on the end arch base, each arch-connected middle foundation comprises a cushion cap, a arch-connected grouped pile foundation is arranged below the cushion cap, an arch base is arranged on the surface of the cushion cap,
a steel skeleton main arch ring is arranged between the end arch bases and the arch bases and between the arch bases, the steel skeleton main arch ring comprises arch main bodies between the end arch bases and the arch bases and between the arch bases, the arch main bodies comprise external concrete arch rings and stressed steel bars which are arranged around the concrete arch rings at intervals along the longitudinal bridge direction, and arch steel skeletons are arranged in the concrete arch rings at intervals along the transverse bridge direction; the stressed steel bars in the arch-shaped main body are hooped by concrete arch hoops, and each arch-shaped steel framework is arranged in each concrete arch hoop.
Furthermore, the main arch ring of the profile steel framework further comprises an arch base embedded part, wherein the two ends of the arch main body are vertically inserted into the arch base and the arch base, and the arch base embedded part and the arch main body are integrally connected.
Furthermore, the cross sections of the arch-shaped steel frameworks are I-shaped, and each arch-shaped steel framework comprises a vertical web plate and horizontal plates at two ends; a plurality of steel-concrete connecting piece assemblies are arranged at intervals on the arch seat embedded part and the horizontal plates at the two ends of the arch-shaped steel skeleton; the steel-concrete connecting piece component consists of one or more steel-concrete connecting pieces.
Still further, a plurality of reinforcing steel bar holes are arranged on the arch base embedded parts at intervals.
Furthermore, the concrete arch ring stirrup is a closed hoop; and the steel-concrete connecting piece assembly on the horizontal plate penetrates through the concrete arch ring stirrup.
And furthermore, a middle pier is arranged between the main arch rings of the profile steel framework on the arch support, and a side wall is poured between the main arch rings of the profile steel framework and the bridge deck structure.
And furthermore, an arch upright post for supporting the bridge deck structure is arranged on the main arch ring arch of the profile steel framework below the middle span of the bridge deck structure.
Furthermore, the upper surface of the section of the arch-shaped main body is a smooth surface, namely the concrete arch ring on the outer layer of the arch-shaped steel framework is as high as the concrete arch ring between the arch-shaped steel frameworks,
or the upper surface of the section of the arch-shaped main body is of a concave-convex structure, namely the concrete arch ring on the outer layer of the arch-shaped steel framework is higher than the concrete arch ring between the arch-shaped steel frameworks.
Still further, be provided with the abutment side wall that is used for retaining soil on the abutment cushion cap.
The utility model has the advantages that:
1) the arch-shaped steel framework in the utility model is used as a temporary support to construct the concrete main arch ring, thereby avoiding the need of additionally erecting an arch ring construction support;
2) the arch-shaped steel framework in the utility model is only hoisted on site, and other processes can be prefabricated and embedded, so that the construction is convenient and rapid, and the precision is higher;
3) the utility model provides an arch-shaped steel skeleton is with steel volume little, accounts for the total cost proportion of engineering very little.
4) The utility model provides a construction of shaped steel skeleton owner arch ring need not the support that falls to the ground, no matter the bridge span condition how (the depth of water is big, and the environmental protection requires high grade), and the homoenergetic is under construction, and is stronger to site conditions adaptability.
Compare conventional concrete arch bridge and adopt methods such as full hall support to be under construction, the utility model discloses reducible construction period reduces engineering cost, and adaptability is stronger. The number of arch spans is increased along with the arch bridging, the utility model discloses the advantage increases gradually.
Drawings
FIG. 1 is a structural elevation view of a steel reinforced concrete arch bridge;
FIG. 2 is a sectional view of the structural vertical section of the steel reinforced concrete arch bridge;
FIG. 3 is a sectional elevation view of an arch bridge abutment;
FIG. 4 is an elevation view of an arch bridge abutment and a main arch ring of a steel skeleton;
FIG. 5 is an elevational view of the abutment;
FIG. 6 is a detail view of an abutment embedment;
FIG. 7 is a schematic view of one form of an arch-shaped body;
FIG. 8 is a detail view of FIG. 7;
FIG. 9 is a schematic view of another form of the arch-shaped body;
FIG. 10 is a detail view of FIG. 9;
FIG. 11 is a sectional view of a typical single span structure of a multi-arch bridge;
FIG. 12 is a construction drawing of a steel reinforced concrete arch bridge;
FIG. 13 is a typical single span construction drawing of a multi-arch bridge;
in the figure, a bridge deck structure 1, a bridge deck beam supporting structure 2, an arch bridge abutment 3, a bridge abutment cushion cap 3.1, a bridge abutment group pile foundation 3.2, an end arch base 3.3, a bridge abutment front wall 3.4, a bridge abutment side wall 3.5, a multi-arch middle foundation 4, a cushion cap 4.1, a multi-arch group pile foundation 4.2, an arch base 4.3, a steel framework main arch ring 5, an arch main body 5.1, a concrete arch ring 5.11, stressed steel bars 5.12, an arch steel framework 5.13, a web 5.13a, a horizontal plate 5.13b, a concrete arch ring stirrup 5.14, an arch base embedded part 5.2, a steel-concrete connecting part component 5.3, a steel-concrete connecting part 5.31, a steel bar hole 5.4, a middle pier 6, a side wall 7 and an upper arch upright post 8.
Detailed Description
The invention is described in further detail below with reference to the figures and specific embodiments for the understanding of those skilled in the art.
Example 1
A steel reinforced concrete arch bridge as shown in figures 1, 2, 3, 4, 5, 6, 7, 8 and 11, comprising a deck structure 1, the deck structure 1 being erected on a deck beam support structure 2; the bridge deck beam supporting structure 2 comprises arch bridge abutments 3 with two ends, a plurality of arch-connected middle foundations 4 are arranged between the two arch bridge abutments 3 at intervals, each arch bridge abutment 3 comprises a bridge abutment cushion 3.1, a bridge abutment group pile foundation 3.2 is arranged below the bridge abutment cushion 3.1, an end arch support 3.3 is arranged on the surface of the bridge abutment cushion 3.1, a bridge abutment front wall 3.4 for supporting the bridge deck structure 1 is arranged on the end arch support 3.3, and a bridge abutment side wall 3.5 for retaining soil is arranged on the bridge abutment cushion 3.1;
the multi-arch middle foundation 4 comprises a bearing platform 4.1, a multi-arch grouped pile foundation 4.2 is arranged below the bearing platform 4.1, an arch support 4.3 is arranged on the surface of the bearing platform 4.1, a middle pier 6 is arranged between the steel framework main arch rings 5 on the arch support 4.3, and a side wall 7 is poured between the steel framework main arch rings 5 and the bridge deck structure 1;
a steel skeleton main arch ring 5 is arranged between the end arch seats 3.3 and the arch seats 4.3, and a steel skeleton main arch ring 5 below the middle span of the bridge deck structure 1 is provided with an arch upright post 8 for supporting the bridge deck structure 1; the main arch ring 5 of the section steel framework comprises an arch main body 5.1 between an end arch base 3.3 and an arch base 4.3 and between the arch bases 4.3 and an arch base embedded part 5.2 of which the two ends of the arch main body 5.1 are vertically inserted into the arch base 3.3 and the arch base 4.3, the arch base embedded part 5.2 and the arch main body 5.1 are integrally connected, a plurality of reinforcing steel bar holes 5.4 are arranged on the arch base embedded part 5.2 at intervals,
the arch main body 5.1 comprises an external concrete arch ring 5.11 and stressed steel bars 5.12 which are arranged around the concrete arch ring 5.11 at intervals along the longitudinal bridge direction, and arch type steel frameworks 5.13 with I-shaped sections are arranged in the concrete arch ring 5.11 at intervals in the transverse bridge direction; the upper surface of the section of the arch-shaped main body 5.1 is a smooth surface, namely the height of a concrete arch ring 5.11 on the outer layer of an arch-shaped steel framework 5.13 is equal to the height of a concrete arch ring 5.11 between the arch-shaped steel framework 5.13;
the arch-shaped steel skeleton 5.13 comprises a vertical web 5.13a and horizontal plates 5.13b at two ends; a plurality of steel-concrete connecting piece assemblies 5.3 are arranged at intervals on the arch seat embedded part 5.2 and the horizontal plates 5.13b at the two ends of the arch-shaped steel skeleton; the steel-concrete joint element assembly 5.3 consists of one or more steel-concrete joint elements 5.31;
the stressed steel bars 5.12 in the arch main body 5.1 are hooped by concrete arch hoop reinforcements 5.14, and each arch type steel framework 5.13 is arranged in the closed concrete arch hoop reinforcements 5.14; and the steel-concrete connector assembly 5.3 on the horizontal plate 5.13b penetrates through the concrete arch hoop stirrup 5.14;
the main arch ring 5 of the profile steel framework further comprises arch bases 3.3 at two ends of an arch main body 5.1 and arch base embedded parts 5.2 in the arch bases 4.3, and the arch base embedded parts 5.2 are integrally connected with the arch main body 5.1.
The sections of the arch-shaped steel frameworks 5.13 are I-shaped, and the arch-shaped steel frameworks 5.13 comprise vertical webs 5.13a and horizontal plates 5.13b at two ends; a plurality of steel-concrete connecting piece assemblies 5.3 are arranged at intervals on the arch seat embedded part 5.2 and the horizontal plates 5.13b at the two ends of the arch-shaped steel skeleton; the steel-concrete joint element assembly 5.3 consists of one or more steel-concrete joint elements 5.31.
The steel reinforced concrete arch bridge is a 27-hole arch bridge with a certain green road, the bridge length is about 500 meters, the standard width is 6.9 meters, and the construction steps of the arch bridge are as shown in figure 12:
1. constructing a lower part structure;
2. constructing a first, third, fifth and seventh combined steel framework main arch ring 5;
3. constructing a second, fourth and sixth combined steel framework main arch ring 5, and then constructing an arch upright post 8;
4. constructing other upper structures and the bridge deck structure 1;
5. and (5) bridge building construction.
Taking the typical one-span main arch ring construction in the middle of No. 14-15 bridge piers as an example, the construction steps of the main arch ring of the section steel framework are briefly described (corresponding to the steps in FIG. 13):
(1) according to the construction load, calculating and determining the manufacturing pre-camber of the arch-shaped steel framework 5.13; constructing an arch support structure 4, and prefabricating an arch-shaped steel framework and an arch support embedded part 5.2 in a steel mill;
(2) erecting an arch support template, positioning and installing an arch support embedded part 5.2, pouring, maintaining and removing the concrete of a rear arch support;
(3) cast-in-place construction, maintenance and form removal of a pier capping beam template at the arch seat;
(4) the arch-shaped steel framework 5.13 is transported and hoisted, and is installed piece by piece: integrally hoisting an arch-shaped steel framework 5.13, and splicing the arch-shaped steel framework 5.13 and an arch seat embedded part 5.2; after 5.13 pieces of the cross-inner three-piece arch-shaped steel framework are completely spliced and installed, transverse temporary connection among the pieces is carried out;
(5) erecting a concrete main arch ring mold: erecting a concrete arch ring 5.11 template by taking an arch-shaped steel skeleton 5.13 as a support, and reserving a pouring and vibrating window for binding the reinforced arch ring template;
(6) pouring the concrete main arch ring 5.11: pouring arch ring concrete in sections, and vibrating in sections to compact the arch ring concrete, so that the pouring of the arch ring concrete is finished;
(7) forming a concrete main arch ring: removing the formwork after the main arch ring concrete curing is finished;
(8) and entering the next stage of superstructure construction.
Example 2
The steel reinforced concrete arch bridge of the present embodiment, as shown in fig. 1, 2, 3, 4, 5, 6, 9, 10 and 11, has substantially the same structure as that of embodiment 1, except that:
the upper surface of the section of the arch-shaped main body 5.1 is of a concave-convex structure, namely the concrete arch ring 5.11 on the outer layer of the arch-shaped steel framework 5.13 is higher than the concrete arch ring 5.11 between the arch-shaped steel frameworks 5.13.
Other parts not described in detail are prior art. Although the above embodiments have been described in detail, it is only a part of the embodiments of the present invention, rather than all embodiments, and other embodiments can be obtained without inventive step according to the present embodiments.
Claims (9)
1. A steel reinforced concrete arch bridge comprises a bridge deck structure (1), wherein the bridge deck structure (1) is erected on a bridge deck beam supporting structure (2); the method is characterized in that: bridge face roof beam bearing structure (2) is including setting up arch bridge abutment (3) at both ends, and the interval is provided with a plurality of middle bases (4) of linking the hunch between two arch bridge abutments (3), arch bridge abutment (3) are including abutment cushion cap (3.1), abutment cushion cap (3.1) below disposes abutment pile foundation (3.2), abutment cushion cap (3.1) surface is provided with end hunch seat (3.3), be provided with abutment front wall (3.4) that are used for supporting bridge floor structure (1) on the end hunch seat (3.3), link hunch middle base (4) including cushion cap (4.1), cushion cap (4.1) below disposes and links hunch pile foundation (4.2), cushion cap (4.1) surface sets up hunch seat (4.3), end hunch seat (3.3) and hunch seat (4.3), all be provided with between hunch seat (4.3) and encircle the hunch seat (5), skeleton frame steel skeleton (5) between skeleton frame foundation (3.3) and hunch seat (3.3), including abutment (3.1) end hunch seat (4.1) The arch-shaped main body (5.1) is arranged between the arch seats (4.3), the arch-shaped main body (5.1) comprises an external concrete arch ring (5.11) and stressed steel bars (5.12) which are arranged around the concrete arch ring (5.11) at intervals along the longitudinal bridge direction, and arch-shaped steel frameworks (5.13) are arranged in the concrete arch ring (5.11) at intervals along the transverse bridge direction; the stressed steel bars (5.12) in the arch-shaped main body (5.1) are hooped by concrete arch hoop reinforcements (5.14), and each arch-shaped steel framework (5.13) is arranged in the concrete arch hoop reinforcements (5.14).
2. A section steel concrete multiple arch bridge according to claim 1, wherein: the main arch ring (5) of the profile steel framework further comprises an arch main body (5.1), wherein two ends of the arch main body are vertically inserted into an arch base (3.3) and an arch base embedded part (5.2) in the arch base (4.3), and the arch base embedded part (5.2) and the arch main body (5.1) are integrally connected.
3. A section steel concrete multi-arch bridge according to claim 2, wherein: the sections of the arch-shaped steel frameworks (5.13) are I-shaped, and the arch-shaped steel frameworks (5.13) comprise vertical webs (5.13a) and horizontal plates (5.13b) at two ends; a plurality of steel-concrete connecting piece assemblies (5.3) are arranged at intervals on the arch seat embedded part (5.2) and the horizontal plates (5.13b) at two ends of the arch-shaped steel skeleton; the steel-concrete connecting piece assembly (5.3) consists of one or more steel-concrete connecting pieces (5.31).
4. A section steel concrete multiple arch bridge according to claim 3, wherein: and a plurality of reinforcing steel bar holes (5.4) are arranged on the arch base embedded part (5.2) at intervals.
5. A section steel concrete multiple arch bridge according to claim 1, wherein: the concrete arch ring stirrup (5.14) is a closed hoop; and the steel-concrete connector assembly (5.3) on the horizontal plate (5.13b) penetrates through the concrete arch hoop reinforcement (5.14).
6. A section steel concrete multiple arch bridge according to claim 1, wherein: and a middle pier (6) is arranged between the steel skeleton main arch rings (5) on the arch support (4.3), and a side wall (7) is poured between the steel skeleton main arch rings (5) and the bridge deck structure (1).
7. A section steel concrete multiple arch bridge according to claim 1, wherein: and an arch upright post (8) for supporting the bridge deck structure (1) is arranged on the main arch ring (5) of the profile steel framework below the middle span of the bridge deck structure (1).
8. A section steel concrete multiple arch bridge according to claim 1, wherein: the upper surface of the section of the arch-shaped main body (5.1) is a smooth surface, namely the concrete arch ring (5.11) on the outer layer of the arch-shaped steel framework (5.13) is as high as the concrete arch ring (5.11) between the arch-shaped steel frameworks (5.13),
or the upper surface of the section of the arch-shaped main body (5.1) is of a concave-convex structure, namely the concrete arch ring (5.11) on the outer layer of the arch-shaped steel framework (5.13) is higher than the concrete arch ring (5.11) between the arch-shaped steel frameworks (5.13).
9. A section steel concrete multiple arch bridge according to claim 1, wherein: and the abutment bearing platform (3.1) is provided with an abutment side wall (3.5) for retaining soil.
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| CN202021013582.4U CN212742154U (en) | 2020-06-04 | 2020-06-04 | Steel reinforced concrete arch bridge |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111827074A (en) * | 2020-06-04 | 2020-10-27 | 武汉市政工程设计研究院有限责任公司 | Steel reinforced concrete arch bridge |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111827074A (en) * | 2020-06-04 | 2020-10-27 | 武汉市政工程设计研究院有限责任公司 | Steel reinforced concrete arch bridge |
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