WO1997045594A1 - Bascule bridge - Google Patents
Bascule bridge Download PDFInfo
- Publication number
- WO1997045594A1 WO1997045594A1 PCT/CH1997/000212 CH9700212W WO9745594A1 WO 1997045594 A1 WO1997045594 A1 WO 1997045594A1 CH 9700212 W CH9700212 W CH 9700212W WO 9745594 A1 WO9745594 A1 WO 9745594A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- water
- bridge
- tank
- lifting
- flood
- Prior art date
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D15/00—Movable or portable bridges; Floating bridges
- E01D15/005—Movable bridges in general ; Constructional elements peculiar to movable bridges
Definitions
- the invention relates to a lifting bridge for bridging a body of water according to the preamble of the independent claim
- Bridges are often the cause of flooding during floods. They brake and block the watercourse so that dams are washed over. There are ways to move these bridges with motors out of storage by lifting or turning them to allow the water to pass freely. These bridges require a complex effort Technology, electric motors, control, power supply etc. Especially in the event of a disaster, such constructions often fail
- the object of the invention is to provide a lifting bridge which is raised automatically and unsupervised from the normal position of use into a high water level when a flood occurs and releases the entire bed of the running water for the high water. Only the simplest technology is to be used so that these lifting bridges can also be used in remote and unattended locations
- FIG. 1 shows a first version of a two-part lifting bridge in cross section
- FIG. 2 shows a second version of a two-part lifting bridge in cross section
- FIG. 3 shows a third version of a two-part lifting bridge in cross section
- Figure 4 is a one-piece lifting bridge in cross section
- Figure 5 is a plan view of a lifting bridge according to Fig. 4 and
- Figure 6 is a partial perspective view of a lifting bridge embedded in a flood dam
- the core piece is water sockets in the form of lateral openings 1 in the water dam. These openings are located at a certain height, corresponding to the decisive starting flood level, located behind these openings
- a shaft In this shaft there are movable water tanks 2 As soon as a flood reaches a predetermined critical height, water flows out of the bed through the side openings 1 into the movable water tanks 2.
- the water tanks 2 are indirectly or directly operatively connected to bridge parts that can be pivoted about pivot bearings 9 Condition, the tanks 2 have a weight, for example, which is about 80% of the bridge weight.
- the flood dam H has a gap L in which the bridge is arranged in order to bridge the water.
- a bridge part 8 is pivoted upwards about a pivot bearing and closes the O opening L in the flood dam H cover plates 81 can be arranged on the bridge part 8, which seal the narrow gaps between the bridge part and the dam. In this state, at most small abutments 82 protrude into the expanded flood space
- the version according to FIG. 1 is a drawbridge with tanks 2 on cables or chains, each of which runs over a guide wheel 5 on a permanently installed mast 6 and is connected to bridge parts 8.
- Bridge parts 8 become one-sided when tanks 2 are filled raised and the bridge plate thus pivoted from the use position into a flood position
- the bridge parts 8 consist of a support structure, which operate on the principle of a swing. The support structure projects on the one hand over the water and on the other hand as an actuating arm also over the area of the tanks 2.
- a swivel bearing 9 is located in between and forms the swivel connection and storage on the dam
- the tanks 2 hang directly on the operating arm at one end of the bridge parts 8 When filling the tanks, a torque is exerted around the swivel bearing on each bridge part 8
- the bridge part pivots around the swivel bearing in the high water position This version does not require permanently installed masts 6 and none Deflection wheel 5
- the version according to FIG. 3 works according to the principle of the torque swing.
- the tanks 2 are rigidly connected to the bridge parts 8 and can be pivoted together with them around the pivot bearings on the dam. When the tanks 2 are filled with water, they generate a torque about the pivot axis, which is sufficient to lift the bridge parts on one side and to pivot them into the flood situation
- FIG. 4 shows a one-piece lifting bridge.
- a roadway 2 2 ' is interrupted by a stream bed 10.
- a body of water normally has a normal water level 11 in the stream bed 10.
- a bridge element 30 with a roadway 31 is suspended from a lifting mechanism 40, spans the stream bed 10 and normally lies on both sides of the creek bed on abutments 32, 32 'on each side, outside the creek bed 10 there are masts or pylons 41, 41'. At the upper end of each pylon there is a deflection wheel 42, 42 '. Outside the creek bed 10 there is a shaft 50 in the The shaft 50 is connected to the stream bed 10 by an inlet 51.
- the inlet 51 is advantageously protected at its opening in the region of the stream bed by a rake or grille 52 against the inflow of floating matter.It is located at a predetermined height of the water level, from which the bridge is to be lifted The mouth of the inlet is a little lower In the shaft 50 A slide 53 opens the inlet for incoming water in the normal state.
- the shaft 50 has at its deepest point an outlet 55 through which the water that has flowed in can be drained again.
- a tank 46 open at the top in the shaft 50 can be shifted from an upper normal state into a lower lowered state.
- the tank 46 is supported against the shaft floor by a brake 47.
- the brake 47 can be a telescopic hydraulic cylinder or a gas spring or the like.
- the tank 46 is provided with a closable drain opening 46 at its lowest point.
- the cable 40 leads upwards from the anchor 45 on the tank 46, via the first deflection wheel 42 on the first pylon 44 , then down and around a first deflection roller 43 in the region of the end of the bridge element entes 30 on one side of the creek bed 10, then parallel to the carriageway 31 to the other side of the creek bed 10, again around a second deflection roller 43 'at the other end of the bridge element 30, then upwards and around a second deflection wheel 42' on top of the second pylon 41 'and again downwards, where it is firmly connected to the ground in an anchoring 45'.
- This guidance of the cable pull 44 corresponds to the principle of a pulley block.
- the desired lifting height and the dead weight of the lifting bridge thus determine the size of the tank 46 and the length of the possible vertical displacement path of the tank 46 in the shaft 50.
- the lifting bridge rests on the abutments 32, 32 'on both sides of the bed 10.
- the tank 46 is empty and held in its upper position by the weight of the lifting bridge.
- the bridge is in use and can be driven on and walked on. If the water level in the water rises, it will once reach the height of the inlet 51 or the grille 52. From this moment on, water flows through the grille 52, through the inlet 51 into the Tank 46. As soon as the tank 46 contains a certain amount of water, it sinks downward in the shaft 50 and at the same time pulls the bridge element 30 between the pylons 42, 42 'upward. Since water is still flowing in, the tank 46 sinks faster.
- the slide 53 which rests on the upper edge of the tank in the idle state, lowers down and sprays the inlet opening of the inlet 51 and no more water flows in.
- the tank 46 lowers further in the shaft 50, its movement being delayed by the brake 47 to such an extent that there is no abrupt stopping when the shaft bottom is reached.
- the path in the stream bed for the flooding is now completely free and is no longer hindered by the bridge if the flood rises too much. It is important that no bridge substructure has ever been immersed in the flood and that the water is dammed
- the outlet 57 is deliberately opened manually or by remote control and the water in the tank 46 can flow out of the shaft through the outlet 55.
- the tank rises relatively slowly in the shaft 50 in accordance with the amount of water drained off and the bridge element 30 lowers again on the abutments 32, 32 '.
- the lifting bridge can be used again. It is obvious that the tank 46 can also be slowly pumped empty by means of a pump. This dispenses with the arrangement of the outlet 55 and the outlet 57.
- stop dampers 49, 49 'in the upper region of the pylons 41, 41' which guarantees that the lifting bridge 30 is in good contact when raised.
- the lifting process of the bridge via the cable 44 can additionally be combined with a traffic signal, for example a barrier 12
- FIG. 5 the arrangement of a lifting bridge 30 according to the previous description is shown in a schematic top view.
- the water flows in the direction F.
- two pylons 41 are arranged on the bank.
- the shaft 50 is located on one side of the stream bed 10 the movable tank 46 then the tank 46 is operatively connected via the cable pulls 44 on both sides via the deflection wheels 42, 42 'on the pylons and the deflection rollers on the bridge element 30.
- the water intake for the inlet 51 is normally arranged in the area of the bridge itself.
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
- Medicines Containing Plant Substances (AREA)
- Mushroom Cultivation (AREA)
- Other Liquid Machine Or Engine Such As Wave Power Use (AREA)
- Valve Device For Special Equipments (AREA)
- Valve-Gear Or Valve Arrangements (AREA)
- Revetment (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP97921576A EP0901538B1 (en) | 1996-05-29 | 1997-05-26 | Bascule bridge |
DE59701470T DE59701470D1 (en) | 1996-05-29 | 1997-05-26 | LIFT BRIDGE |
AT97921576T ATE191941T1 (en) | 1996-05-29 | 1997-05-26 | LIFTING BRIDGE |
AU27612/97A AU2761297A (en) | 1996-05-29 | 1997-05-26 | Bascule bridge |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH1339/96 | 1996-05-29 | ||
CH133996 | 1996-05-29 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1997045594A1 true WO1997045594A1 (en) | 1997-12-04 |
Family
ID=4208174
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/CH1997/000212 WO1997045594A1 (en) | 1996-05-29 | 1997-05-26 | Bascule bridge |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP0901538B1 (en) |
AT (1) | ATE191941T1 (en) |
AU (1) | AU2761297A (en) |
DE (1) | DE59701470D1 (en) |
WO (1) | WO1997045594A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3075911A1 (en) * | 2015-03-31 | 2016-10-05 | SEH Engineering GmbH | Hoist bridge |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE391568A (en) * | ||||
GB128211A (en) * | 1912-04-02 | Blondel Alfred | Improvements for a Floating Bridge which can be Raised or Immersed. | |
US2411480A (en) * | 1943-01-04 | 1946-11-19 | Temple Alan Edward Spence | Movable bridge, dock gate, and the like |
-
1997
- 1997-05-26 AU AU27612/97A patent/AU2761297A/en not_active Abandoned
- 1997-05-26 DE DE59701470T patent/DE59701470D1/en not_active Expired - Fee Related
- 1997-05-26 AT AT97921576T patent/ATE191941T1/en not_active IP Right Cessation
- 1997-05-26 WO PCT/CH1997/000212 patent/WO1997045594A1/en active IP Right Grant
- 1997-05-26 EP EP97921576A patent/EP0901538B1/en not_active Expired - Lifetime
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE391568A (en) * | ||||
GB128211A (en) * | 1912-04-02 | Blondel Alfred | Improvements for a Floating Bridge which can be Raised or Immersed. | |
US2411480A (en) * | 1943-01-04 | 1946-11-19 | Temple Alan Edward Spence | Movable bridge, dock gate, and the like |
Non-Patent Citations (1)
Title |
---|
TH. LANDSBERG: "HANDBUCH DER INGENIEURWISSENSCHAFTEN, BAND 2, ABTEILUNG 4, BEWEGLICHE BRÜCKEN", 1907, VERLAG VON WILHELM ENGELMANN, LEIPZIG, XP002036110 * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3075911A1 (en) * | 2015-03-31 | 2016-10-05 | SEH Engineering GmbH | Hoist bridge |
Also Published As
Publication number | Publication date |
---|---|
EP0901538B1 (en) | 2000-04-19 |
AU2761297A (en) | 1998-01-05 |
EP0901538A1 (en) | 1999-03-17 |
ATE191941T1 (en) | 2000-05-15 |
DE59701470D1 (en) | 2000-05-25 |
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