EP1409791A1 - Pneumatic construction or bridging element - Google Patents
Pneumatic construction or bridging elementInfo
- Publication number
- EP1409791A1 EP1409791A1 EP02708111A EP02708111A EP1409791A1 EP 1409791 A1 EP1409791 A1 EP 1409791A1 EP 02708111 A EP02708111 A EP 02708111A EP 02708111 A EP02708111 A EP 02708111A EP 1409791 A1 EP1409791 A1 EP 1409791A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- bridge element
- sheath
- element according
- webs
- pneumatic
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/005—Girders or columns that are rollable, collapsible or otherwise adjustable in length or height
-
- 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
- E01D15/12—Portable or sectional bridges
- E01D15/122—Inflatable or unreelable bridges ; Bridges with main load-supporting structure consisting only of non-rigid elements, e.g. cables
-
- 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
- E01D15/14—Floating bridges, e.g. pontoon bridges
- E01D15/20—Floating bridges, e.g. pontoon bridges collapsible, expandable, inflatable or the like with main load supporting structure consisting only of non-rigid members
Definitions
- the present invention relates to a pneumatic bridge element according to the preamble of claim 1.
- Various pneumatic bridge elements have become known. These usually consist of tubular inflatable hollow bodies with an outer skin made of reinforced plastic films. Special precautions are taken to absorb the tensile and compressive forces that occur and to prevent the construction or bridge elements from buckling. Basically, the pressure forces are absorbed by one or more pressure rods, which are either integrated in the tubular component or attached to them on the outside. The tensile forces are absorbed by reinforcements applied outside or integrated in the plastic film or special drawstrings. Examples of such building or bridge elements are known from PCT / CH01 / 00107, US 3,894,307, US 4,712,335, US 5,421,128.
- 1 shows a first embodiment of the bridge element in longitudinal section
- 2 shows a cross section through a bridge element
- Fig. 6 shows a fourth embodiment in a schematic side view.
- a sleeve 1 of the bridge element consists of a textile fabric, preferably of low elasticity, and is covered with an elastomer or more generally: a flexible plastic and thus made airtight.
- This casing 1 can be inflated with compressed air in the range of a few 100 mB via at least one schematically illustrated valve 2.
- a large number of textile webs 3 are arranged between the upper and lower sides of the casing 1 and connected to the material of the casing 1 by welding or gluing.
- the webs 3 consist of at least a first layer 4 of a fabric, the course of the thread of which is rotated approximately 45 ° with respect to the longitudinal direction of the bridge element.
- a second layer 5 of the same fabric has a parallel or perpendicular thread course with respect to the longitudinal direction of the bridge element.
- the fabric forming the layers 4, 5 also preferably has little extensibility.
- two or more first layers 4 are to be used for the webs 3 or only one or more second layers 5 are additionally provided for every second web. It is crucial to use at least one first layer 4 in each web in order to derive the tensile forces from the rods 6 onto the lower surface of the casing 1.
- a plurality of pressure rods 6 is arranged on the top of the bridge element, in such a way that each pressure rod 6 runs in the plane defined by the web 3. As shown in Fig. 3, each push rod 6 is guided, for example, through a plurality of tabs 7 and held in position.
- the tabs 7 are connected to the shell 1 by gluing or welding. Of course, only a single tab 7, which extends over its entire surface, can be provided for each pressure rod 6.
- Metal rods or tubes, rods made of GRP, CFRP or even wood can be provided as pressure rods 7. Just like the elasticity of the textile materials, the compressive strength of the bars is due to the high stress of such a bridge element and the costs that should be expended for it.
- a bridge element is set up and used for bridging a terrain cut 8.
- a protective cover 9 which is also made of a flexible plastic, at most by other Reinforced fabric reinforcements.
- a roadway plate 10, for example made of wooden planks, is placed over the rods 6 here, on the one hand to protect the casing 1 and on the other hand to distribute the forces introduced on the bridge element.
- the limit load in the installation shown in FIG. 1 is limited by the pressure prevailing in the casing 1, the compressive strength of the bars 6 and the tensile and shear strength of the webs 3.
- the size of the contact surfaces of the bridge element is also open the underground is crucial.
- the one shown in FIG. 4 can occur. Only one end of the bridge element is shown; the other is completely identical.
- the ends of the rods 6 are supported by a suitably shaped support 11, which runs transversely to the rods 6, and the weight of the bridge element mentes and its load is derived from the carrier 11 via two supports 12 to the underground.
- the means for power transmission from the bars 6 to the carrier 11 are known per se and are therefore not described further.
- the rods 6 do not have flying ends that are only subjected to bending, but that the forces that could give rise to a bending are derived in the form of tensile forces on the webs 3.
- a ramp 13 is provided here, which is articulated to the carriageway slab 10 in the area of the beam 11.
- the support points essentially only apply the vertical reaction forces.
- the horizontally running pressure forces on the top of the bridge element and the horizontal components of the tensile forces running in the webs 3 must be in equilibrium with one another at all times. It is therefore provided that the pressure rods are non-positively connected either over their entire length or at least at short intervals to the sheath 1 - preferably in the tabs 7. These connections can be made by mechanical means such as clamping devices, but also by gluing.
- the vertical reaction forces are applied by the carriers 11, which are directly connected to the pressure bars 6. In this embodiment and application example, it is only necessary to non-positively close the pressure bars 6 at their ends with the casing 1 connect.
- the bridge element can be used wherever loads are to be carried by a flat element. This is the case, for example, with a roof.
- a roof Such use is shown in FIG. A building shown schematically, the statics of which are formed, for example, by a plurality of steel girders 15, carries at least two bridge elements according to FIG. 1 as roof elements 16. These are connected to the steel girders 15 at one end by means of node elements 14, and by a so-called Gerber beam 17 at the other connected.
- the node elements 14 take the place of the supports 11 according to FIG. 4.
- the connections of the node elements 14 to the pressure rods 6 are also known per se and familiar to the civil engineer.
- the tanner carrier 17 is extended beyond the connection points with the node elements to the roof elements 16, with which torques in the tanner carrier 17 can be transmitted as forces acting perpendicularly thereon to the pressure rods 6, where they are derived like normal loads.
- this roof forms an actual three-joint arch, each with a blocked joint on the side with the larger load.
- the steel beams 15 are braced against each other with steel cables 18.
- other roof constructions with such roof elements 16 are possible where less demanding static tasks are to be solved thereby. Since the compressive forces in the compression rods 6 are diverted outwards via the node elements 14, it is in turn only necessary at the ends of the compression rods 6 to connect them non-positively to the casing.
- the push rods 6 can be longitudinally movable in the tabs 7 between the ends.
- Another use is the use of the bridge element according to the invention as a pontoon, as shown with reference to FIG. 6.
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH13472001 | 2001-07-20 | ||
CH134701 | 2001-07-20 | ||
PCT/CH2002/000178 WO2003016634A1 (en) | 2001-07-20 | 2002-03-27 | Pneumatic construction or bridging element |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1409791A1 true EP1409791A1 (en) | 2004-04-21 |
EP1409791B1 EP1409791B1 (en) | 2004-12-15 |
Family
ID=4565399
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP02708111A Expired - Lifetime EP1409791B1 (en) | 2001-07-20 | 2002-03-27 | Pneumatic construction or bridging element |
Country Status (7)
Country | Link |
---|---|
US (1) | US6874192B2 (en) |
EP (1) | EP1409791B1 (en) |
AT (1) | ATE284999T1 (en) |
CA (1) | CA2454241C (en) |
DE (1) | DE50201807D1 (en) |
ES (1) | ES2235010T3 (en) |
WO (1) | WO2003016634A1 (en) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH704634B1 (en) * | 2003-03-21 | 2012-09-28 | Prospective Concepts Ag | A pneumatic structural component. |
US8820000B2 (en) | 2003-07-18 | 2014-09-02 | Prospective Concepts Ag | Pneumatic support |
WO2005007991A1 (en) * | 2003-07-18 | 2005-01-27 | Prospective Concepts Ag | Pneumatic support |
GB0420174D0 (en) * | 2004-09-10 | 2004-10-13 | Survitec Group Ltd | Fascines |
WO2009026631A1 (en) * | 2007-08-29 | 2009-03-05 | Liferaft Systems Australia Pty Limited | Triangular inflatable evacuation slide |
GB0906978D0 (en) * | 2009-04-22 | 2009-06-03 | Ove Arup & Partners Internat L | Deployable bridge element |
EP2829690A1 (en) * | 2013-07-23 | 2015-01-28 | Alstom Technology Ltd | Maintenance assembly adaptable within gas turbine engine |
CH712565A1 (en) * | 2016-06-08 | 2017-12-15 | Pibridge Ltd | Pneumatic carrier. |
CH713818A1 (en) | 2017-05-16 | 2018-11-30 | Pibridge Ltd | Pneumatic carrier. |
CN107841937B (en) * | 2017-11-10 | 2023-12-19 | 中国人民解放军国防科技大学 | Light Zhang Xianqi bearing bridge |
AR121550A1 (en) * | 2021-03-11 | 2022-06-15 | Guijarro Jimenez Antonio Gustavo | ULTRA-RESISTANT PNEUMATIC CONSTRUCTION ARRANGEMENT FOR LARGE WORKS |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2527995A (en) * | 1941-05-28 | 1950-10-31 | Hamilton S Lilyflex Surfaces L | Device for supporting moving vehicles on water |
US2480144A (en) * | 1943-08-12 | 1949-08-30 | John N Laycock | Pontoon assembly |
US2987024A (en) * | 1959-05-11 | 1961-06-06 | Paul J Rush | Mobile segmented cylindrical pontoon structure |
GB1176941A (en) * | 1966-05-06 | 1970-01-07 | Secr Defence | Improvements in or relating to Bridge Structures |
FR2229814A1 (en) * | 1973-05-16 | 1974-12-13 | Superflexit | |
DE3206222A1 (en) * | 1982-02-20 | 1983-09-01 | IBEK Ingenieurbüro Echtler Kaiserslautern GmbH, 6750 Kaiserslautern | PONTON FOR SWIMMING BRIDGES AND DRIVING |
DE3540607C1 (en) * | 1985-11-15 | 1987-04-02 | Gutehoffnungshuette Man | Device for folding a pontoon unit |
US4712335A (en) | 1986-12-17 | 1987-12-15 | Barkdull Jr Howard L | Method of span construction |
AT394219B (en) * | 1990-08-23 | 1992-02-25 | Stranzinger Margarete | FLOATING ELEMENT |
US5107785A (en) * | 1990-12-07 | 1992-04-28 | Baxter Hal T | Floating dock and breakwater |
DE4227094C2 (en) * | 1992-08-17 | 2001-02-08 | Man Technologie Gmbh | Pneumatic floor support for layable bridges |
US5421128A (en) | 1994-01-14 | 1995-06-06 | Sharpless; Garrett C. | Curved, inflated, tubular beam |
US6381792B1 (en) * | 1999-11-18 | 2002-05-07 | Sandia Corporation | Modular foam floating bridge |
PT1210489E (en) | 2000-03-27 | 2005-11-30 | Prospective Concepts Ag | PNEUMATIC STRUCTURAL COMPONENT |
-
2002
- 2002-03-27 DE DE50201807T patent/DE50201807D1/en not_active Expired - Lifetime
- 2002-03-27 EP EP02708111A patent/EP1409791B1/en not_active Expired - Lifetime
- 2002-03-27 AT AT02708111T patent/ATE284999T1/en active
- 2002-03-27 US US10/483,169 patent/US6874192B2/en not_active Expired - Fee Related
- 2002-03-27 CA CA002454241A patent/CA2454241C/en not_active Expired - Fee Related
- 2002-03-27 WO PCT/CH2002/000178 patent/WO2003016634A1/en active IP Right Grant
- 2002-03-27 ES ES02708111T patent/ES2235010T3/en not_active Expired - Lifetime
Non-Patent Citations (1)
Title |
---|
See references of WO03016634A1 * |
Also Published As
Publication number | Publication date |
---|---|
DE50201807D1 (en) | 2005-01-20 |
ES2235010T3 (en) | 2005-07-01 |
US6874192B2 (en) | 2005-04-05 |
EP1409791B1 (en) | 2004-12-15 |
US20040237225A1 (en) | 2004-12-02 |
WO2003016634A1 (en) | 2003-02-27 |
CA2454241A1 (en) | 2003-02-27 |
CA2454241C (en) | 2009-01-27 |
ATE284999T1 (en) | 2005-01-15 |
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