Self-balancing combined frame bridge

Abstract

The utility model provides a self-balancing combined frame bridge. The self-balancing combined frame bridge comprises a top plate, a plurality of partition walls, a bottom plate, a plurality of arch rings and a plurality of haunches. The top plate and the bottom plate are arranged in parallel up and down at intervals, and a plurality of haunches in one-to-one correspondence are arranged on the top plate and the bottom plate at intervals; a partition wall is connected between the two haunches which correspond to each other up and down; an arch ring is connected between every two adjacent partition walls. According to the structure, the spanning capacity of the frame bridge is improved, the landscape effect of the bridge is improved, the problem that pile foundations cannot be constructed due to the fact that the bridge is limited by underground structures is solved, the applicability of the arch bridge type bridge is improved, meanwhile, the construction procedure is simple, cast-in-place and prefabricated pushing can be achieved, and the construction period is shortened.

Description

Technical Field

[0001] This application relates to the field of bridge engineering, and particularly to a self-balanced composite frame bridge. Background Art

[0002] Due to its good structural integrity, large stiffness, and mature construction technology, frame bridges have also been widely used in urban bridges. With the development of the economy, people have put forward higher requirements for bridge landscapes on the basis of practicality in the pursuit of bridge structures. Frame bridges are less used in urban landscape bridges due to reasons such as their single shape, limited building height, and limited single-hole span.

[0003] Traditional arch bridges, as classic bridge types, have been widely used in urban landscape design. They usually provide anti-thrust through abutments or pile foundations to achieve force balance of the arch ring. However, due to the influence of geological conditions and underground structures such as subway tunnels, it is impossible to construct pile foundations or the foundation construction is not economically efficient, thus limiting the application of the structure. Utility Model Content

[0004] One of the purposes of this application is to provide a self-balanced composite frame bridge, aiming to solve the problems that the existing frame bridges have a narrow scope of application and are limited in application.

[0005] The technical solution of this application is as follows:

[0006] A self-balanced composite frame bridge includes a top plate, multiple partition walls, a bottom plate, multiple arch rings, and multiple haunches; the top plate and the bottom plate are arranged parallel to each other at intervals, and multiple corresponding haunches are arranged at intervals on the top plate and the bottom plate; the partition walls are connected between two corresponding haunches up and down; the arch rings are connected between two adjacent partition walls.

[0007] As a technical solution of this application, the bottom ends of the arch rings are respectively connected to two adjacent haunches on the bottom plate.

[0008] As a technical solution of this application, the arch rings arch upward to form an arch shape, and the concrete arch feet of the arch rings are cast integrally with the haunches on the bottom plate.

[0009] As a technical solution of this application, two adjacent concrete arch feet are symmetrically arranged with respect to the partition wall.

[0010] As a technical solution of this application, it further includes multiple columns; the multiple columns are all vertically arranged in parallel at intervals between the tops of the corresponding arch rings and the top plate.

[0011] As a technical solution of the present application, the column foot of the column and the arch ring are cast integrally, and the column top of the column and the top plate are cast integrally.

[0012] As a technical solution of the present application, the top of the arch ring and the top plate are integrally cast.

[0013] As a technical solution of the present application, the cavity formed by the top plate and the arch ring is filled with a retaining wall.

[0014] Advantages of the present application:

[0015] In the self - balancing combined frame bridge of the present application, it combines the stress characteristics of conventional frame bridges and arch bridges, has good applicability, improves the stress performance of the frame bridge, increases the spanning ability, and at the same time solves the application problem of arch bridges under the condition that pile foundations cannot be used for construction, and is applicable to conventional geological conditions; moreover, the self - balancing combined frame bridge has high landscape value. Compared with conventional frame bridges, this structure reduces the thickness of the top plate and increases the arched structure, resulting in better landscape; in addition, the self - balancing combined frame bridge has high economy. It does not require the construction of pile foundations compared with traditional bridges, and has high economy compared with conventional arch bridges and beam bridges. Its construction process is simple, has good applicability, and can be cast - in - place or precast and jacked for construction. Description of the drawings

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present application, and thus should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can be obtained based on these drawings without creative efforts.

[0017] Figure 1 Schematic diagram of the self - balancing combined frame bridge provided by the first embodiment of the present application;

[0018] Figure 2 Schematic diagram of the self - balancing combined frame bridge provided by the second embodiment of the present application;

[0019] Figure 3 Schematic diagram of the self - balancing combined frame bridge provided by the third embodiment of the present application.

[0020] Icons: 1 - top plate; 2 - partition wall; 3 - bottom plate; 4 - arch ring; 5 - haunch; 6 - column; 7 - retaining wall. Detailed implementation manners

[0021] To make the objectives, technical solutions and advantages of the embodiments of this application clearer, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of this application. Obviously, the described embodiments are some but not all of the embodiments of this application. Components of the embodiments of this application described and shown in the accompanying drawings here can be arranged and designed in various different configurations.

[0022] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of this application that is claimed, but merely represents selected embodiments of this application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of this application without creative efforts fall within the scope of protection of this application.

[0023] It should be noted that like reference numerals and letters denote like items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0024] In the description of this application, it should be noted that the orientation or positional relationship indicated by terms such as "upper", "lower", etc. is based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product is usually placed during use. It is only for the convenience of describing this application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0025] In addition, in this application, unless otherwise clearly specified and defined, the first feature being above or below the second feature may include the first and second features being in direct contact, or may also include the first and second features not being in direct contact but being in contact through additional features therebetween. Moreover, the first feature being above, on top of and above the second feature includes the first feature being directly above and obliquely above the second feature, or merely means that the horizontal height of the first feature is higher than that of the second feature. The first feature being below, beneath and under the second feature includes the first feature being directly below and obliquely below the second feature, or merely means that the horizontal height of the first feature is lower than that of the second feature.

[0026] In addition, terms such as "horizontal" and "vertical" do not mean that the components are required to be absolutely horizontal or hanging, but may be slightly inclined. For example, "horizontal" merely means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but may be slightly inclined.

[0027] In the description of this application, it should also be noted that unless otherwise clearly specified and defined, the terms "set", "connected", and "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0028] First Embodiment:

[0029] Please refer to Figure 1 , this application provides a self - balancing combined frame bridge, which mainly includes a top plate 1, multiple partition walls 2, a bottom plate 3, multiple arch rings 4, multiple haunches 5, and multiple columns 6. Among them, the top plate 1 and the bottom plate 3 are arranged at intervals parallel to each other up and down, and multiple corresponding haunches 5 are arranged at intervals on the top plate 1 and the bottom plate 3. At the same time, a partition wall 2 is connected between two corresponding haunches 5 up and down. And, an arch ring 4 is connected between two adjacent partition walls 2, and the bottom ends of the arch rings 4 are respectively connected to two adjacent haunches 5 on the bottom plate 3. In addition, multiple columns 6 are all vertically arranged at intervals parallel to each other between the top of the corresponding arch ring 4 and the top plate 1.

[0030] It should be noted that in this embodiment, the arch ring 4 arches upward and is in an arch shape, and the concrete arch feet of the arch ring 4 and the haunches 5 on the bottom plate 3 are cast integrally. At the same time, two adjacent concrete arch feet are symmetrically arranged with respect to the partition wall 2. In addition, the column feet of the column 6 and the arch ring 4 are cast integrally, and the column tops of the column 6 and the top plate 1 are cast integrally. It combines the stress characteristics of a conventional frame bridge and an arch bridge, has good applicability, improves the stress performance of the frame bridge, increases the spanning ability, and at the same time solves the application problem of the arch bridge under the condition that pile foundation construction cannot be adopted, and it is applicable to conventional geological conditions.

[0031] The construction method of this structure is as follows:

[0032] S1, According to the site conditions, position and set out the lines, excavate the foundation pit of the frame bridge, and carry out slope protection, and take diversion measures for the wading section;

[0033] S2, Carry out gravel replacement for the foundation bottom of the frame bridge foundation. After the bearing capacity reaches the design conditions, pour the cushion layer;

[0034] S3, Bind and fabricate the steel bars required for the bottom plate 3 and the haunches 5, set up the formwork, and pour the concrete to form the bottom plate 3 and the haunches 5;

[0035] S4, When the concrete of the bottom plate 3 reaches the curing age, set up the formwork support required for constructing the arch ring 4, construct and fabricate the steel bars required for the arch ring 4, pour the concrete and cure it to form the arch ring 4;

[0036] S5. Bind the steel bars required for fabricating the partition wall 2 and the column 6, erect the formwork and pour the concrete.

[0037] S6. After the concrete for fabricating the arch ring 4 reaches the curing age, erect the formwork of the support for fabricating the top plate 1 above it, construct the steel bars required for fabricating the top plate 1, and pour the concrete.

[0038] S7. After the age of the main bridge structure is reached, remove the formwork and support, backfill the soil of the bridge head and the bottom plate 3, and construct the approach slab.

[0039] S8. Construct the bridge auxiliary facilities and the deck pavement, and open the traffic after each component reaches the curing conditions.

[0040] In summary, in the self - balanced combined frame bridge of the present application, it combines the stress characteristics of the conventional frame bridge and the arch bridge, has good applicability, improves the stress performance of the frame bridge, increases the spanning ability, and at the same time solves the application problem of the arch bridge under the condition that pile foundation construction cannot be adopted, and is applicable to conventional geological conditions; moreover, the self - balanced combined frame bridge has high landscape performance. Compared with the conventional frame bridge, this structure reduces the thickness of the top plate 1, increases the arch structure, and has better landscape performance; in addition, the self - balanced combined frame bridge has high economy. It does not require pile foundation construction compared with traditional bridges, and has high economy compared with conventional arch bridges and beam bridges. Its construction technology is simple, has good applicability, and can be cast - in - place or precast and launched for construction.

[0041] Second Embodiment:

[0042] Please refer to Figure 2 , the present application provides a self - balanced combined frame bridge, which is substantially the same as the frame bridge in the first embodiment, except that: in this embodiment, the top of the arch ring 4 and the top plate 1 are integrally cast, and the design of the column 6 is removed.

[0043] The structure in this embodiment is applicable to the case where the span of the frame bridge is relatively small.

[0044] Third Embodiment:

[0045] Please refer to Figure 3 , the present application provides a self - balanced combined frame bridge, which is substantially the same as the frame bridge in the second embodiment, except that: in this embodiment, a retaining wall 7 is filled in the cavity formed by the top plate 1 and the arch ring 4, and the retaining wall 7 can effectively improve the overall structural integrity and strength of the self - balanced combined frame bridge, and the safety performance is higher.

[0046] The above are only the preferred embodiments of the present application and are not intended to limit the present application. For those skilled in the art, various modifications and variations can be made to the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included within the protection scope of the present application.

Claims

1. A self-balancing composite frame bridge, characterized in that: It includes a top plate, a plurality of partition walls, a bottom plate, a plurality of arch rings and a plurality of arms; the top plate and the bottom plate are arranged in parallel and spaced apart from each other, and a plurality of one-to-one corresponding arms are arranged at intervals on the top plate and the bottom plate; the partition wall is connected between two corresponding arms; the arch ring is connected between two adjacent partition walls; the bottom ends of the arch rings are respectively connected to two adjacent arms on the bottom plate; the arch rings are arched upward to form an arch shape, and the concrete arch feet of the arch rings are cast together with the arms on the bottom plate; two adjacent concrete arch feet are symmetrically arranged relative to the partition wall; it also includes a plurality of columns; the plurality of columns are vertically arranged in parallel and spaced apart between the top of the corresponding arch ring and the top plate.

2. The self-balancing composite frame bridge according to claim 1, characterized in that: The column foot of the column and the arch ring are cast together, and the column top of the column and the top plate are cast together.

3. The self-balancing composite frame bridge according to claim 1, characterized in that: The top of the arch ring is integrally cast with the top plate.

4. The self-balancing composite frame bridge according to claim 1, characterized in that: The cavity formed by the top plate and the arch ring is filled with a surrounding wall.

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