CN1125282A

CN1125282A - Traffic diversion bridge at junction of urban district

Info

Publication number: CN1125282A
Application number: CN 94114053
Authority: CN
Inventors: 赖永清
Original assignee: Individual
Current assignee: Individual
Priority date: 1994-12-20
Filing date: 1994-12-20
Publication date: 1996-06-26

Abstract

The traffic diversion bridge for road crossing is comprised of bridge foundation, supporting columns, overpass type annular island shaped bridge deck and sloped road surface as bridge approach, and is characterized by that its bridge body is made into a joggle truss structure (or reinforced concrete prefabricated unit structure), and its traffic island with ring road surface and sloped road surface are made into the special-purpose slow-traffic lane road surfaces for non-motorized vehicles and walkers, and each sloped road surface respectively has both right and left lanes. ADVANTAGE-. Said bridge is simple and light in structure, low in cost and easy to construct.

Description

Traffic diversion bridge at junction of urban district

The invention belongs to the building technology of intersection grade separation type (formula) bridge in the city, a kind of simple structure that particularly a kind of city intersection traffic diverging is used, the bridge of movable splicing can be used for the traffic diverging problem that crowded intersection, urban traffic solves people, bicycle and motor vehicle.

Along with the continuous development of World Economics, the urbanization building size of developing country is increasing.As everyone knows, the population of developing country occupies the great majority in the world, urban population density is big, means of transportation fall behind, and its employed vehicles are also very backward compared with developed countries, for example in China, though the scale of urban construction and speed are maked rapid progress, but the townsfolk overwhelming majority also is to use specially and goes up current bicycle as traffic means of transport at slow lane (or claiming cycleway), also have many walkings in addition and sit pedicab or the like, the construction of urban highway traffic does not at present catch up with the paces of urban population development far away, almost in all intersections, particularly strive institute's road congestion phenomenon that causes nothing to be surprised at already at peak period on and off duty people's car (particularly bicycle and motor vehicle), this has greatly wasted people's commuter time, reduce work efficiency, even frequent traffic accidents such as traffic accident occurred.In order to solve the traffic problems of intersection in the urban district, municipal sector normally builds up some intersections rotary island shape, some then build up the grade separation bridge-type, the crossing of rotary island shape is compared with right-angled intersection, the reinforcement that makes moderate progress of the ability of its human and vehicle shunting mediation, and expenditure of construction is lower, but the ability of human and vehicle shunting mediation is very limited after all, in peak period on and off duty, the phenomenon on the stifled road of traffic congestion still happens occasionally unavoidably, the bridge of grade separation bridge-type normally builds up up motor vehicle, the fixedly three-dimensional bridge structure of descending bicycle or other rickshaws, the former ideal of the energy force rate of its human and vehicle shunting, shortcoming are intersection transformations when building up the overpass bridge traffic structure of above-mentioned large-scale fixed building, and construction period is long, very big to daily traffic impact, and expenditure of construction is very high.

The objective of the invention is to design a kind of people, bicycle and the strong cities and towns traffic diversion bridge at junction of urban district of motor vehicle shunting ability, this bridge construction simple light, can carry out activity splicing assembly construction, construction period is short, expense is low, has the traffic diverging effect that can compare favourably with existing large-scale overpass bridge.

The present invention adopts following technical scheme to realize: referring to accompanying drawing, it still includes the pedestal as pier footing, support column, the rotary island shape body of a bridge road surface of grade separation type and constitute as the road surface, slope of access bridge, the body of a bridge that it is characterized in that bridge is a trussed construction of making movable splicing, its rotary island shape road surface and road surface, slope are to make the slow lane road surface (promptly being generally used for the bicycle road surface that cyclists only) that pass through specially bicycle and walking are used, the road surface, slope of wherein leading to each crossing all has two, and is connected mutually as row slow lane about on left and right sides row of channels and the street respectively.

In the specific design manufacture process, this novel bridge also can be designed to have following several technical characterictic:

One, its body of a bridge also can be made into the body of a bridge structure of the precast reinforced concrete spare of light movable splicing.

Two, its body of a bridge also can be made into the structure that the truss that can splice and precast reinforced concrete spare mix mutually.(for example, the last half storey of the body of a bridge is a precast reinforced concrete spare, and following half storey is a truss.Accompanying drawing slightly).

Three, as the gradient on the road surface, slope of access bridge can adopt be easy to allow the bicycle climbing less than 1: 10 the gradient (as build up equal 1: 7 the gradient).

Four, its rotary island shape road surface and road surface, slope can adopt the cement pre-fabricated panel laying to form, and also can directly form with (cement) concrete pouring.

Five, the body of a bridge under its rotary island shape road surface is to make to allow the smooth and easy longspan structure that passes through of motor vehicle (for example making the structure of arch).

Six, can be respectively on the body of a bridge of the southeast, northeast, southwest and the northwest corner four direction on rotary island shape road surface, be overlapped with People's Bank of China's ladder access (joining) with rotary island shape road surface.

Seven, on bridge, also can set up safe flak jacket railing, the safety when passing through to strengthen.

Following accompanying drawing is several embodiment of the present invention.Wherein:

Fig. 1 is the overall structure schematic diagram (vertical view) of bridge of the present invention;

Fig. 2 is the side structure schematic diagram (body of a bridge truss is assembled on the pedestal) of Figure 1A-A direction;

Fig. 3 is the side structure schematic diagram (body of a bridge is a cement prefab) of second kind of embodiment;

Fig. 4 is the side structure schematic diagram (body of a bridge truss is assembled on the support column) of the third embodiment;

Fig. 5 is the side structure schematic diagram (central support column is the tilting assembly unit) of the 4th kind of embodiment.

Wherein: the 1st, rotary island shape body of a bridge road surface, road surface, 2 slope (joining), 2-1 right lateral slow lane with the slow lane of current bicycle, 2-2 left lateral slow lane, 3 fast traffic lanes, 4 People's Bank of China's ladder accesses, 5 cement pre-fabricated panels, the 6 truss-like body of a bridgies, 7 pedestals, 8 support columns (also can build up movable), 8-1 tilting central authorities support column, 9 flak jacket railings, 10 ground rotary islands, the body of a bridge of 11 precast reinforced concrete spares.

The body of a bridge of bridge of the present invention adopts the benefit of truss-like portable structure to be, the force direction that is subjected to of the rod member of truss-like member itself is not that stretching is exactly compression, thereby has very high intensity (extensively adopting on the crane crane).Because of this novel bridge mainly is again to be used to allow bicycle, rickshaw and walks such as tricycle, supporting power less demanding (needn't require identical) with the supporting power of the overpass bridge that generally is used for current large-tonnage motor vehicle, make the body of a bridge in light weight, build splicing simple (also available precast reinforced concrete spare) easily, the bridge pier pedestal is also less demanding, so whole bridge is built and is just seemed simple, cheap, again because prefabricated component all can be made (comprising the structure that support column 8 also can be built up movable installation) in factory, building installation period also can shorten greatly, avoided traffic is had a strong impact on for a long time, it is also less demanding to the width of surface of the street to build this novel bridge, so long as possess the traffic transformation that the right-angled intersection in slow lane and fast traffic lane street all can use this technology to suit measures to local conditions, and the effect of human and vehicle shunting can match in excellence or beauty with existing overpass bridge.

Claims

1, a kind of traffic diversion bridge at junction of urban district, comprise pedestal (7) as pier footing, support column (8), grade separation type rotary island shape body of a bridge road surface (1) and constitute as the road surface, slope (2) of access bridge, the body of a bridge that it is characterized in that bridge is a trussed construction of making movable splicing, its rotary island shape road surface and road surface, slope (2) are to make the slow lane road surface that pass through specially bicycle and walking are used, the road surface, slope (2) of wherein leading to each crossing all has two, and is connected mutually as row slow lane about on left and right sides row of channels and the street respectively.

2, bridge according to claim 1 is characterized in that the body of a bridge also can be made into the body of a bridge of the precast reinforced concrete spare of movable splicing (11) structure.

3, bridge according to claim 1 and 2 is characterized in that the body of a bridge also can be made into the structure that the truss that can splice and precast reinforced concrete spare mix mutually.

4, bridge according to claim 1 and 2, the gradient that it is characterized in that described road surface, slope (2) as access bridge can adopt be easy to allow the bicycle climbing less than 1: 10 the gradient.

5, bridge according to claim 1 and 2 is characterized in that rotary island shape road surface and road surface, slope (2) can adopt cement pre-fabricated panel (5) to lay, and also can directly use concrete pouring.

6, bridge according to claim 1 and 2 is characterized in that the body of a bridge under the rotary island shape road surface is to make to allow the smooth and easy longspan structure that passes through of motor vehicle.

7, bridge according to claim 1 and 2 is characterized in that can be respectively being overlapped with People's Bank of China's ladder access (4) on the body of a bridge of the southeast, northeast, southwest and the northwest corner four direction on rotary island shape road surface.

8, bridge according to claim 1 and 2 is characterized in that can having set up safe flak jacket railing (9) on bridge.