CN208748500U - A kind of novel beam bridge structure suitable for complicated landform - Google Patents

Abstract

The utility model discloses a kind of novel beam bridge structures suitable for complicated landform, belong to frame beam bridge technical field, which uses cast-in-place concrete structure, including floorings, longitudinal and cross beam, and longitudinal and cross beam is flushed with floorings top, and is poured and built up beam portion entirety；Wherein, stringer includes main longitudinal grider and time stringer, and several main longitudinal griders are evenly arranged along longitudinal direction, one stringer is disposed between two neighboring main longitudinal grider, crossbeam includes main beam and time crossbeam, and several main beams are transversely evenly arranged, and one crossbeam is disposed between two neighboring main beam.The utility model is using the frame structure in building structure as inspiration, Vierendeel girder and bridge beam slab are combined, it is good to the adaptability of alpine terrain to be had using the porous small frame beam structure being fixedly connected across, Dun Liang, good integrity, the more traditional cast-in-situ beam slab of self weight mitigate about 45%, have many advantages, such as that structure is more slim and graceful, material utilization amount is saved, had fewer environmental impacts, convenient and quick construction.

Description

A kind of novel beam bridge structure suitable for complicated landform

Technical field

The utility model belongs to frame beam bridge technical field, and in particular to a kind of novel beam bridge knot suitable for complicated landform Structure is suitable for mountainous terrain low-grade highway and crosses over complicated landform.

Background technique

Physical relief, landforms, geological conditions, ecoscape and people for mountainous terrain low-grade highway, as locating for it The factors such as literary landscape, route often inevitably need to be set to the dangerously steep position of topography, lead to oblique, the curved Ramp bridge of minor radius Numerous, design and construction to bridge cause certain difficulty.

Current bridge superstructure mainly uses prefabricated and cast-in-place two kinds of structural shapes.On the one hand, due to cycle track Width of subgrade is small, design speed per hour is low, bend is more and radius is small, is difficult to realize using precast construction beam slab arrangement, such as using conventional Cast-in-situ beam slab structure such as seems excessively heavy and horizontal sliding easily occurs, easily topples at the adverse effects；On the other hand, low-grade highway Requirement for load is low, poor using conventional bridge structure economy.

Utility model content

The technical problems to be solved in the utility model is just to provide a kind of suitable mountainous terrain low-grade highway across intricately The novel beam bridge structure safe, economic, convenient for construction of shape, to overcome, traditional bridge structure is in the form of a single, excessively heavy, material Dosage is more, speed of application is slow, the shortcomings that having greater environmental impacts.

What the utility model adopts the following technical solution to realize:

A kind of novel beam bridge structure suitable for complicated landform, the frame beam structure use cast-in-place concrete structure, including Floorings, longitudinal and cross beam, and longitudinal and cross beam is flushed with floorings top, and is poured and built up beam portion entirety；Wherein,

Stringer includes main longitudinal grider and time stringer, and several main longitudinal griders are evenly arranged along longitudinal direction, cloth between two neighboring main longitudinal grider It is equipped with one stringer, crossbeam includes main beam and time crossbeam, and several main beams are transversely evenly arranged, two neighboring main beam Between be disposed with a time crossbeam.

The utility model, which further improves, to be, when use state, each pier position of the frame beam structure substructure Place is provided with twin columns, and two end carriage of frame beam structure seam delivery position passes through two movable piers and is arranged in pile foundation, and two It is horizontally arranged with several inter-ties between movable pier, is provided with pier cap beam at the top of two movable piers；

Two pier studs being arranged in pile foundation, each pier are fixedly connected at each pier position among the frame beam structure Several straining beams are horizontally arranged between two pier studs at position, are vertically arranged between two pier studs at two neighboring pier position Several vertical binders.

The utility model, which further improves, to be, the spacing between main longitudinal grider and secondary stringer and secondary stringer and secondary stringer For 6-8m.

The utility model, which further improves, to be, the spacing between neighbouring two straining beams is 5m.

The utility model, which further improves, to be, the spacing of neighbouring two vertical binders is 5m.

The utility model, which further improves, to be, the quantity of main longitudinal grider is two, and the quantity of secondary stringer is one, main vertical Deck-molding 0.6m and include bridge floor plate thickness, wide 0.6m, the high 0.6m of secondary stringer and include bridge floor plate thickness, wide 0.3m.

The utility model, which further improves, to be, the quantity of main beam is seven, and the quantity of secondary crossbeam is the six roots of sensation, main cross Deck-molding 0.6m and include bridge floor plate thickness, wide 0.6m, the high 0.6m of secondary crossbeam and include bridge floor plate thickness, wide 0.3m.

The utility model, which further improves, to be, floorings wide 4.5m, thick 0.18m.

The utility model has following beneficial technical effect:

1, using it is porous it is small across one cast-in-place structural, can be adapted for the orographic condition of various complexity, it is good across performance；

2, compared to traditional cast-in-situ beam slab, the utility model top beam slab weight reduction about 45%, structure is slimmer and more graceful, material It is low-consuming；

3, compared to traditional bridge structure, frame structure good integrity, anti-seismic performance is good；

4, cast-in-place structural no setting is required precast beam field, is suitable for the construction of mountainous terrain；

5, the protection to environment is focused in the construction of current road, and for environmental requirement height, frame form is arranged for abrupt slope Terrain adaptability is good, and effect on environment degree is smaller.

In conclusion the utility model is using the frame structure in building structure as inspiration, by Vierendeel girder and bridge beam slab into Row combines, and has, globality good to the adaptability of alpine terrain using the porous small frame beam structure being fixedly connected across, Dun Liang Good, the more traditional cast-in-situ beam slab of self weight mitigates about 45%, and with structure, more slim and graceful, material utilization amount is saved, has fewer environmental impacts, applied The advantages that work is convenient and efficient, overcomes that traditional bridge structure is in the form of a single, excessively heavy, material utilization amount is more, speed of application is slow, right The shortcomings that environment is affected is worth promoting.

Detailed description of the invention

Fig. 1 is frame beam bridge typical case's cross-sectional view.

Fig. 2 is frame beam bridge plan view.

Fig. 3 is frame beam bridge elevation.

Fig. 4 is the A-A of Fig. 3 to cross-sectional view.

Fig. 5 is the B-B direction cross-sectional view of Fig. 3.

Description of symbols: 1-main longitudinal grider, 0.6m (width) × 0.6m (height)；2-secondary stringers, 0.3m (width) × 0.6m (height)；3-main beams, 0.6m (width) × 0.6m (height)；4-secondary crossbeams, 0.3m (width) × 0.6m (height)；5-floorings, 4.5m (width) × 0.18m (height)；6-movable piers (D=0.8m), 7-inter-ties, 0.6m (width) × 0.6m (height)；8-pier stud (D= 0.6m), 9-vertical binder, 0.45m (width) × 0.6m (height)；10-straining beams, 0.4m (width) × 0.5m (height)；11-pile foundations (D=1.0m)；12-pier cap beams, 1.2m (width) × 0.95m (height).

Specific embodiment

The utility model is described further below in conjunction with attached drawing:

As shown in Figures 1 to 5, a kind of novel beam bridge structure suitable for complicated landform provided by the utility model, the frame Structure of setting a roof beam in place uses cast-in-place concrete structure, is made of longitudinal and transverse beam, and longitudinal 6-8m setting one (according to the actual situation can be corresponding Adjustment).Wherein, stringer is divided into main longitudinal grider 1 and time stringer 2, and crossbeam is divided into main beam 3 and time crossbeam 4, stringer, crossbeam and bridge floor The top of plate 5 flushes, and pours and build up beam portion entirety, and compared to traditional bridge superstructure, the utility model structure is slim and graceful, material utilization amount It saves, has fewer environmental impacts.

Laterally setting twin columns, two end carriage of Vierendeel girder seam delivery position set movable pier 6, are each pier position of Vierendeel girder substructure Enhance movable pier overall stiffness, 1~2 inter-tie 7 is laterally arranged in bridge pier.

4 hole bridge piers 8 of centre form Dun Liang with Vierendeel girder and are fixedly connected, by the vertical binder 9 of the high every 5m setting 1 of pier, cross Binder 10 enhances the overall stability of frame bridge structure, improves anti-seismic performance.

Specifically, be longitudinally arranged (can accordingly be adjusted) using 6-8m mono- according to the actual situation, longitudinal main vertical by two Beam 1 and one stringer 2 form, and main longitudinal grider 1 is 0.6m high (including bridge floor plate thickness), and wide 0.6m, secondary stringer 2 is 0.6m high (to include Bridge floor plate thickness), wide 0.3m；Laterally (every) You Qigen main beam 3 and the six roots of sensation time crossbeam 4 form, the 0.6m high (packet of main beam 3 Plate thickness containing bridge floor), wide 0.6m, secondary crossbeam 4 is 0.6m high (including bridge floor plate thickness), wide 0.3m；5 width 4.5m of floorings is thick 0.18m；The diameter of movable pier 6 is 0.8m；Inter-tie 7 width 0.6m, high 0.6m；The diameter of pier stud 8 is 0.6m；Vertical binder 9 is wide 0.45m, high 0.6m；Straining beam wide 0.4m, high 0.5m；The diameter of pile foundation 11 is 1.0m, 12 width 1.2m of pier cap beam, height 0.95m。

Claims (8)

1. a kind of novel beam bridge structure suitable for complicated landform, which is characterized in that the frame beam structure uses cast-in-place concrete Structure, including floorings (5), longitudinal and cross beam, and longitudinal and cross beam and floorings (5) top flush, and pour that build up a beam portion whole Body；Wherein,

Stringer includes main longitudinal grider (1) and time stringer (2), and several main longitudinal griders (1) are evenly arranged along longitudinal direction, two neighboring main longitudinal grider (1) one stringer (2) is disposed between, crossbeam includes main beam (3) and time crossbeam (4), and several main beams (3) are transversely equal Even arrangement is disposed with one crossbeam (4) between two neighboring main beam (3).

2. a kind of novel beam bridge structure suitable for complicated landform according to claim 1, which is characterized in that use state When, twin columns are provided at each pier position of the frame beam structure substructure, and it is equal which stitches delivery position It is arranged on pile foundation (11) by two movable piers (6), is horizontally arranged with several inter-ties between two movable piers (6) (7), pier cap beam (12) are provided at the top of two movable piers (6)；

Two pier studs (8) being arranged on pile foundation (11) are fixedly connected among the frame beam structure at each pier position, often It is horizontally arranged with several straining beams (10) between two pier studs (8) at a pier position, two pier studs (8) at two neighboring pier position Between be vertically arranged with several vertical binders (9).

3. a kind of novel beam bridge structure suitable for complicated landform according to claim 1 or 2, which is characterized in that main vertical Spacing between beam (1) and time stringer (2) and secondary stringer (2) and time stringer (2) is 6-8m.

4. a kind of novel beam bridge structure suitable for complicated landform according to claim 2, which is characterized in that neighbouring Spacing between two straining beams (10) is 5m.

5. a kind of novel beam bridge structure suitable for complicated landform according to claim 2, which is characterized in that neighbouring The spacing of two vertical binders (9) is 5m.

6. a kind of novel beam bridge structure suitable for complicated landform according to claim 2, which is characterized in that main longitudinal grider (1) quantity is two, and the quantity of secondary stringer (2) is one, the high 0.6m of main longitudinal grider (1) and include bridge floor plate thickness, wide 0.6m, The high 0.6m of secondary stringer (2) and include bridge floor plate thickness, wide 0.3m.

7. a kind of novel beam bridge structure suitable for complicated landform according to claim 2, which is characterized in that main beam (3) quantity is seven, and the quantity of secondary crossbeam (4) is the six roots of sensation, the high 0.6m of main beam (3) and include bridge floor plate thickness, wide 0.6m, The high 0.6m of secondary crossbeam (4) and include bridge floor plate thickness, wide 0.3m.

8. a kind of novel beam bridge structure suitable for complicated landform according to claim 2, which is characterized in that floorings (5) width 4.5m, thick 0.18m.