CN217517338U

CN217517338U - Road overpass bridge structure

Info

Publication number: CN217517338U
Application number: CN202220401221.XU
Authority: CN
Inventors: 杨岑; 张永宁; 胡霞
Original assignee: Sichuan Dema Engineering Design Co ltd
Current assignee: Sichuan Dema Engineering Design Co ltd
Priority date: 2022-02-28
Filing date: 2022-02-28
Publication date: 2022-09-30
Anticipated expiration: 2032-02-28

Abstract

The utility model relates to a overpass bridge technical field, specifically discloses a road overpass bridge structure; the prefabricated concrete stair comprises a pier, a prefabricated concrete stair, a bearing steel frame, a supporting steel frame, a prefabricated concrete bridge deck and a railing; two ends of the bearing steel frame are fixedly connected with the abutment, the supporting steel frame is arranged above the bearing steel frame, and the supporting steel frame is fixedly connected with the bearing steel frame; clamping grooves are uniformly formed in the supporting steel frame, and the precast concrete bridge deck is fixed in the clamping grooves; limiting angle steels are arranged on the two transverse sides of the upper surface of the supporting steel frame, and the railings are located on the outer sides of the limiting angle steels and fixedly connected with the supporting steel frame; grooves are formed in the two ends of the top and the bottom of the pier, and the precast concrete stairs are fixedly connected into the grooves; the utility model provides a steel sheet is laid to pedestrian bridge floor as the bridge floor, the easy corrosion of outward appearance, the walking sound is big and the outward appearance is not pleasing to the eye behind the apparent corrosion of steelframe ladder, the problem discordant with the city view.

Description

Road overpass bridge structure

Technical Field

The application relates to the technical field of overpasses, and particularly discloses a road overpass structure.

Background

The overpass bridge is a facility which strides over the highway, and is usually arranged at the place where pedestrians, bicycles and other vehicles cross the highway and the first-level highway, especially the place where the traffic flow conflict is serious; the rigid frame system overpass bridge is mainly used for pedestrian bridges in open areas; the pedestrian bridge floor is generally paved with anti-skid steel plates or asphalt bridge floor, and the stepped steel structure is exposed outside; the steel plate paved on the bridge floor of the pedestrian bridge is used as the bridge floor, the appearance is easy to rust, and the walking sound is large; after long-term use, the steel frame ladder is rusted and has an unattractive appearance, which is not harmonious with urban landscape.

The present inventors have in view of the above, provided a road overpass structure in order to solve the above problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a road overline bridge structure to solve the pedestrian bridge floor and lay the steel sheet as the bridge floor, the easy corrosion of outward appearance, the walking sound is big and steelframe ladder outward appearance corrosion back outward appearance is pleasing to the eye, with the discordant problem of city view.

In order to achieve the purpose, the utility model discloses a basic scheme provides road overpass bridge structure, including pier, precast concrete stair, bearing steel frame, support steel frame, precast concrete decking and railing; two ends of the bearing steel frame are fixedly connected with the abutment, the supporting steel frame is arranged above the bearing steel frame, and the supporting steel frame is fixedly connected with the bearing steel frame; clamping grooves are uniformly formed in the supporting steel frame, and the precast concrete bridge deck is fixed in the clamping grooves; limiting angle steels are arranged on the two transverse sides of the upper surface of the supporting steel frame, and the railings are located on the outer sides of the limiting angle steels and fixedly connected with the supporting steel frame; both ends are provided with the recess at the pier top bottom, and precast concrete stair fixed connection is in the recess.

By adopting the technical scheme, the method has the advantages that: the bridge floor and the pedestrian stairs are laid without steel plates, a bridge body is built by using steel, the bridge floor and the pedestrian stairs are built by adopting precast concrete bridge deck plates and precast concrete stairs, and the construction site is cleaner and tidier; when the stairs are erected, the precast concrete stairs can be placed in the grooves in advance, the grooves at the two ends of the top and the bottom of the abutment are used for fixing the precast concrete stairs, and the precast concrete stairs are safely connected with the abutment by constructors;

after the steel frame stair is used for a long time, different from metal materials, the appearance of the precast concrete bridge deck and the precast concrete stair cannot have obvious color change and is harmonious with peripheral landscapes, and the problems that the appearance of the steel frame stair is rusted and is not attractive and is discordant with urban landscapes are solved; when the steel plate is adopted to lay the bridge floor, although the construction cost is low, the appearance is easy to rust, the steel plate has high strength and thin thickness, the walking sound is high, and the pedestrian experience is poor; the bridge deck is paved by adopting the precast concrete bridge deck slab, the thickness and the weight of the precast concrete bridge deck slab are large, the bridge deck is stable, the walking noise is low, and pedestrians can obtain better impression experience; the problems that the steel plate paved on the bridge floor of the pedestrian bridge serves as the bridge floor, the appearance is easy to rust, and the walking sound is large are solved.

Further, the supporting steel frame comprises a plurality of supporting blocks; the adjacent supporting blocks are symmetrically arranged; the supporting shoe both ends are provided with the connecting pin, and the bottom is provided with the reference column, and adjacent supporting shoe relies on connecting pin fixed connection.

By adopting the technical scheme, the device has the advantages that: the adjacent supporting blocks are fixedly connected through the connecting pins, and the clamping grooves can be formed after the supporting blocks are fixed and used for fixing the precast concrete bridge deck.

Furthermore, evenly be provided with the support fixed orifices on the bearing steelframe, the supporting shoe passes through reference column fixed connection and in supporting the fixed orifices.

By adopting the technical scheme, the method has the advantages that: the supporting blocks can be placed in the supporting and fixing holes firstly, then the supporting steel frames and the bearing steel frames are fixedly connected between the adjacent supporting blocks, the supporting and fixing holes play a role in positioning, and meanwhile, the installation is facilitated.

Further, limiting angle steel to clamp two ends of the precast concrete deck slab; the right center of precast concrete bridge deck bottom is provided with the location rib, and precast concrete bridge deck relies on the location rib to fix in the draw-in groove.

By adopting the technical scheme, the device has the advantages that: the precast concrete bridge deck is fixed in the clamping grooves by the positioning ribs, so that the transverse movement of the precast concrete bridge deck is limited; the angle steel is limited to clamp the precast concrete bridge deck, so that the precast concrete bridge deck is prevented from shaking up and down.

Further, both ends recess and pier waist are provided with the connecting hole at the bottom of the pier top, and the pier both sides are provided with the railing.

By adopting the technical scheme, the method has the advantages that: the connecting holes are used for fixing the precast concrete stairs, and pedestrians can walk up and down by means of the handrails.

Furthermore, connecting bosses are arranged at two ends of the top and the bottom of the precast concrete stair, and bolt holes are arranged on the connecting bosses and the waist of the precast concrete stair; the precast concrete stair is fixedly connected in the pier groove through the connecting boss.

By adopting the technical scheme, the method has the advantages that: during installation, the precast concrete stairs can be placed in the pier groove, and the connecting boss can limit the movement of the precast concrete stairs; the staff can fix the precast concrete stair through the bolt hole.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a schematic structural diagram illustrating a road overpass structure proposed in an embodiment of the present application;

FIG. 2 shows a cross-sectional view taken along line B-B of FIG. 1;

FIG. 3 shows a cross-sectional view taken along line A-A of FIG. 2;

FIG. 4 shows a top view of a precast concrete stair;

fig. 5 shows a side view of a precast concrete stair;

fig. 6 shows an isometric view of a precast concrete staircase;

fig. 7 shows another isometric view of a precast concrete stair.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

The following is further detailed by the specific embodiments:

reference numerals in the drawings of the specification include: the prefabricated concrete stair comprises a pier 1, a prefabricated concrete stair 2, a bearing steel frame 3, a supporting steel frame 4, a prefabricated concrete bridge deck 5 and a railing 6; groove 101, connecting boss 201, bolt hole 202, angle steel 401, reference column 402, draw-in groove 403, location rib 501.

The embodiments of the road overpass bridge structure are shown in figures 1-7,

the utility model discloses a concrete implementation process:

as shown in fig. 1 to 3, 4 and 5: the prefabricated concrete stair comprises a pier 1, a prefabricated concrete stair 2, a bearing steel frame 3, a supporting steel frame 4, a prefabricated concrete bridge deck 5 and a railing 6; two ends of the bearing steel frame 3 are fixedly connected with the abutment 1, the supporting steel frame 4 is arranged above the bearing steel frame 3, and the supporting steel frame 4 is fixedly connected with the bearing steel frame 3; clamping grooves 403 are uniformly formed in the supporting steel frame 4, and the precast concrete deck slab 5 is fixed in the clamping grooves 403; limiting angle steels 401 are arranged on two transverse sides of the upper surface of the supporting steel frame 4, and the railings 6 are located on the outer sides of the limiting angle steels 401 and fixedly connected with the supporting steel frame 4; grooves 101 are formed in the two ends of the top and the bottom of the abutment 1, and the precast concrete stairs 2 are fixedly connected into the grooves 101.

By adopting the technical scheme, the method has the advantages that: the bridge floor and the pedestrian stairs are laid without steel plates, a bridge body is built by using steel materials, the bridge floor and the pedestrian stairs are built by adopting the precast concrete bridge deck 5 and the precast concrete stairs 2, and the construction site is cleaner and tidier; when the stair is erected, the precast concrete stair 2 can be placed in the groove in advance, the precast concrete stair is fixed by the grooves at the two ends of the top and the bottom of the abutment 1, and the precast concrete stair 2 is safely fixedly connected with the abutment 1 by constructors;

after long-term use, different from metal materials, the surfaces of the precast concrete bridge deck 5 and the precast concrete stairs 2 do not have obvious color change and are harmonious with surrounding landscapes, and the problems that the surfaces of steel frame stairs are rusted and are not beautiful and are discordant with urban landscapes are solved; when the steel plate is adopted to lay the bridge floor, although the construction cost is low, the appearance is easy to rust, the steel plate has high strength and thin thickness, the walking sound is high, and the pedestrian experience is poor; the bridge deck is paved by adopting the precast concrete bridge deck 5, the thickness and the weight of the precast concrete bridge deck 5 are large, the bridge deck is stable, the walking noise is low, and pedestrians can obtain better impression experience; the problems that the steel plate paved on the bridge floor of the pedestrian bridge serves as the bridge floor, the appearance is easy to rust, and the walking sound is large are solved.

As shown in fig. 1: the supporting steel frame 4 comprises a plurality of supporting blocks; the adjacent supporting blocks are symmetrically arranged; connecting pins are arranged at two ends of each supporting block, positioning columns 402 are arranged at the bottom ends of the supporting blocks, and the adjacent supporting blocks are fixedly connected through the connecting pins.

By adopting the technical scheme, the device has the advantages that: the adjacent supporting blocks are fixedly connected by virtue of the connecting pins, and the clamping grooves 403 can be formed after the supporting blocks are fixed, so as to fix the precast concrete deck slab 5.

As shown in fig. 3: the bearing steel frame 3 is evenly provided with a supporting fixing hole, and the supporting block is fixedly connected in the supporting fixing hole through a positioning column 402.

By adopting the technical scheme, the method has the advantages that: the supporting blocks can be placed in the supporting fixing holes firstly, then the supporting steel frames 4 and the bearing steel frames 3 are fixedly connected between the adjacent supporting blocks, the supporting fixing holes play a role in positioning, and meanwhile, the installation is facilitated.

As shown in fig. 1 and 3: limiting angle steels 401 clamp two ends of the precast concrete bridge deck 5; the center of the bottom of the precast concrete bridge deck 5 is provided with a positioning rib 501, and the precast concrete bridge deck 5 is fixed in the clamping groove 403 by the positioning rib 501.

By adopting the technical scheme, the device has the advantages that: the precast concrete bridge deck 5 is fixed in the clamping groove 403 by virtue of the positioning rib 501, so that the transverse movement of the precast concrete bridge deck 5 is limited; the precast concrete deck 5 is blocked by the restriction angle steel 401, and is prevented from shaking up and down.

As shown in fig. 1 and 2: both ends recess 101 and 1 waist of pier are provided with the connecting hole at 1 top of pier bottom, and 1 both sides of pier are provided with railing 6.

By adopting the technical scheme, the device has the advantages that: the connecting holes are used for fixing the precast concrete stairs 2, and pedestrians can walk up and down by means of the railings 6.

As shown in FIGS. 4-7: the connecting bosses 201 are arranged at the two ends of the top and the bottom of the precast concrete stair 2, and bolt holes 202 are arranged on the connecting bosses 201 and the waist of the precast concrete stair 2; precast concrete stair 2 passes through to be connected boss 201 fixed connection in pier 1 recess 101.

By adopting the technical scheme, the method has the advantages that: during installation, the precast concrete stairs 2 can be placed in the abutment grooves 101, and the connecting bosses 201 can limit the precast concrete stairs 2 to move; the worker can fix the precast concrete stairway 2 through the bolt holes 202.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit the same; although the present application has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not necessarily depart from the spirit and scope of the corresponding technical solutions in the embodiments of the present application.

Claims

1. Road overpass bridge structure, its characterized in that: the prefabricated concrete stair comprises a pier, a prefabricated concrete stair, a bearing steel frame, a supporting steel frame, a prefabricated concrete bridge deck and a railing; two ends of the bearing steel frame are fixedly connected with the abutment, the supporting steel frame is arranged above the bearing steel frame, and the supporting steel frame is fixedly connected with the bearing steel frame; clamping grooves are uniformly formed in the supporting steel frame, and the precast concrete bridge deck is fixed in the clamping grooves; limiting angle steels are arranged on the two transverse sides of the upper surface of the supporting steel frame, and the railings are located on the outer sides of the limiting angle steels and fixedly connected with the supporting steel frame; both ends are provided with the recess at the pier top bottom, and precast concrete stair fixed connection is in the recess.

2. The road overpass bridge structure of claim 1, wherein: the supporting steel frame comprises a plurality of supporting blocks; the adjacent supporting blocks are symmetrically arranged; the supporting shoe both ends are provided with the connecting pin, and the bottom is provided with the reference column, and adjacent supporting shoe relies on connecting pin fixed connection.

3. The road overpass bridge structure of claim 2, wherein: evenly be provided with on the bearing steelframe and support the fixed orifices, the supporting shoe passes through reference column fixed connection and supports the fixed orifices in.

4. The road overpass bridge structure of claim 3, wherein: limiting the angle steel to clamp two ends of the precast concrete deck slab; the center of the bottom of the precast concrete bridge deck is provided with a positioning rib, and the precast concrete bridge deck is fixed in the clamping groove by the positioning rib.

5. The road overpass bridge structure of claim 4, wherein: both ends recess and pier waist are provided with the connecting hole at the bottom of the pier top, and the pier both sides are provided with the railing.

6. The road overpass bridge structure of claim 5, wherein: connecting bosses are arranged at two ends of the top and the bottom of the precast concrete stair, and bolt holes are arranged on the connecting bosses and the waist of the precast concrete stair; the precast concrete stair is fixedly connected in the pier groove through the connecting boss.