WO1997003249A1 - Element de structure destine a des ponts et a des planchers - Google Patents

Element de structure destine a des ponts et a des planchers Download PDF

Info

Publication number
WO1997003249A1
WO1997003249A1 PCT/EP1996/003102 EP9603102W WO9703249A1 WO 1997003249 A1 WO1997003249 A1 WO 1997003249A1 EP 9603102 W EP9603102 W EP 9603102W WO 9703249 A1 WO9703249 A1 WO 9703249A1
Authority
WO
WIPO (PCT)
Prior art keywords
structural member
member according
fibres
longitudinal
sheet
Prior art date
Application number
PCT/EP1996/003102
Other languages
English (en)
Inventor
Walther Hendrik Zwart
Lambertus Gerrit Peter Dalmolen
Alphonsus Joannes Rob
Original Assignee
Akzo Nobel N.V.
Grontmij Advies & Techniek B.V.
Polymarin B.V.
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Akzo Nobel N.V., Grontmij Advies & Techniek B.V., Polymarin B.V. filed Critical Akzo Nobel N.V.
Priority to AU66159/96A priority Critical patent/AU693037B2/en
Priority to EP96925754A priority patent/EP0837970B1/fr
Priority to DE69602266T priority patent/DE69602266T2/de
Publication of WO1997003249A1 publication Critical patent/WO1997003249A1/fr

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00—Structural elongated elements designed for load-supporting
    • E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
    • E04C3/29—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces built-up from parts of different material, i.e. composite structures
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D2/00—Bridges characterised by the cross-section of their bearing spanning structure
    • E01D2/04—Bridges characterised by the cross-section of their bearing spanning structure of the box-girder type
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B5/00—Floors; Floor construction with regard to insulation; Connections specially adapted therefor
    • E04B5/02—Load-carrying floor structures formed substantially of prefabricated units
    • E04B5/04—Load-carrying floor structures formed substantially of prefabricated units with beams or slabs of concrete or other stone-like material, e.g. asbestos cement
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D2101/00—Material constitution of bridges
    • E01D2101/20—Concrete, stone or stone-like material
    • E01D2101/24—Concrete
    • E01D2101/26—Concrete reinforced
    • E01D2101/266—Concrete reinforced with fibres other than steel or glass
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D2101/00—Material constitution of bridges
    • E01D2101/40—Plastics

Definitions

  • the invention pertains to a structural member for bridges, floors, and the like which comprises at least one longitudinal girder of trapezoidal, V-shaped or U- shaped or rectangular cross-section with a concrete slab provided thereon.
  • Such a structural member is known from Netherlands laid-open patent application 7115625, which describes a prefabricated structural member composed of a steel sheet with a concrete slab provided thereon, while a reinforcement structure, also made of steel, is provided on the bottom side of the steel plate.
  • the longitudinal girders in the above structure are very heavy, complicating transportation and placement.
  • the high weight of the longitudinal girders will also have to be taken into account when designing the land abutments and piers supporting the bridge.
  • a great many operations are required on site before the structure is ready.
  • the longitudinal girder of the structural member mentioned in the opening paragraph is made of synthetic material and at least the side parallel to the concrete slab is reinforced with parallel fibres having an embedded modulus of elasticity of more than 50 GPa.
  • the fibres preferably have an embedded modulus of elasticity of more than 75 GPa, or even of more than 100 GPa. Also, it is preferred for a large share of the fibres in the side parallel to the slab (preferably more than 60 wt.%, or even more than 80 wt.%) to extend longitudinally and across the full length of the longitudinal girder or a substantial portion thereof. Conventional upper limits of said modulus are 400 Gpa and 250 Gpa, depending on the material.
  • fibres which extend in other directions e.g., crosswise, can be embedded in the matrix to increase, say, the torsional stiffness or the transverse stiffness of the longitudinal girder. Also, places subject to greater load, such as the centre of the longitudinal girder, can be reinforced with additional fibres.
  • fibres comprises, int. al., filaments and bundles of filaments.
  • the structural member according to the invention is made of synthetic material, giving it a comparatively low weight and hence making it easy to handle.
  • the position of the fibres (in the side of the longitudinal girder which is parallel to the slab, which is also the side furthest removed from the slab) ensures that the high stiffness and the high tensile strength of these fibres will be made the most of.
  • each longitudinal girder can be provided with a separate slab.
  • Concrete is known to be especially suitable for absorbing pressure forces.
  • Use of the structural member according to the invention in a bridge or a floor gives a just about ideal structure, one with a material especially suitable for absorbing pressure forces in those places where pressure forces develop, and likewise with a material especially suitable for absorbing tensile forces there where tensile forces develop.
  • the sheet bonded to the longitudinal girders is also made of synthetic material, the weight of the structural member is not increased needlessly, and, what is more, very simple and inexpensive techniques can be used to make the connection between the sheet and the longitudinal girder or longitudinal girders.
  • One very suitable example of a technique for uniting the longitudinal girder and the sheet is glueing them together.
  • the "tray" thus formed can be pumped full of concrete once it has been put in position on site. In that case there is no need for separate manufacture and/or transportation and lifting of the concrete sheet, thus reducing the number of operations and, correspondingly, the cost and the risk of defects or damage.
  • fibre-reinforced synthetic material allows both the designer and the contractor a lot of scope.
  • synthetic material is easy to shape and process.
  • the longitudinal girders, the sheet, and, optionally, other components can be made into more or less complex modules (cut to length), which, thanks to their low weight, can be transported to the site at the desired time on a conventional trailer.
  • the low weight of the module also makes for simpler and safer lifting. All this simplifies the construction of, say, a bridge or a building significantly.
  • a further advantage of the structural member according to the invention is that it can be employed in more light-weight objects such as footbridges and cycle bridges. Usually, tropical hardwood is used to build such bridges, but the use of this type of wood is considered to cause serious damage to the environment. Such use can be avoided by employing the structural member according to the invention.
  • the other sides of the longitudinal girder or longitudinal girders are preferably reinforced with a fabric or non-woven web of fibres.
  • the ends and picks both are at an angle of 30° to 60° to the longitudinal axis of the longitudinal girder, the shearing forces occurring in the other sides are very well absorbed.
  • fibres made up wholly or for the most part of poly(p-phenylene terephthalamide), glass or carbon.
  • Such fibres have the required high modulus of elasticity and high strength and are pre-eminently suited to be used in composites.
  • the structural member according to the invention can be used, e.g., in a bridge such as a footbridge or a cycle bridge, in other words, in an object where the structural member is visible to a great extent.
  • a box can be provided around the longitudinal girder or longitudinal girders, which box may be made, e.g., of synthetic material and like the longitudinal girder or longitudinal girders be glued to the sheet.
  • the box can be reinforced with fibres, e.g., in the side furthest removed from the sheet. In that case the box not only has a "cosmetic" effect, it will also contribute to the strength and the (torsional) stiffness of the final structure.
  • the invention further pertains to a bridge and a building provided with a structural member according to the invention.
  • advantageous use can be made of the member's easy handling, low weight, and lack of restrictions where shaping is concerned.
  • the invention also pertains to a process for manufacturing a bridge or a floor in which the ends of a structural member according to the invention are each placed or fastened on a support, such that the sheet is on the upper side, and in which a layer of concrete is pumped onto the sheet.
  • the concrete at first does not contribute to the load bearing capacity of the structure, it may be preferable, depending on the (expected) sagging of the structural member under the weight of the wet concrete, to provide temporary support for the structural member.
  • the latter can be provided with dowels or anchors.
  • dowels or anchors In this way, after the concrete has been poured and has hardened, there will come to be good collaboration between the structural member and the concrete slab.
  • the connection can also be made by roughening the structural member's synthetic material, i.e., the sheet on top of which the concrete is to be provided, e.g., by smearing it with epoxy resin and then covering it with sand. If so desired, the concrete can be reinforced.
  • the process illustrates how easy it becomes to construct, say, a bridge using the structural member according to the invention.
  • a module made up of a number of longitudinal girders and a covering plate or sheet can be arranged.
  • a layer of concrete is pumped onto the covering plate, and this in effect completes the bridge.
  • a handrail can be provided (for which the arrangements can already be made on the module), as well as a layer of asphalt.
  • US 4,079,476 discloses a footbridge made of synthetic material and reinforced with fibreglass. The footbridge has a U-shaped section, and both its sides are reinforced, int.
  • FR 26835559 describes a footbridge comprising a caisson of U-shaped cross- section.
  • the bottom of the caisson takes the form of a tension member composed of a light filler with fibres wrapped around it.
  • the fibres are impregnated with resin.
  • a sheet is attached which is also made of a light filler with impregnated fibres provided thereon.
  • the filler used for both the tension member and the sheet preferably is balsa.
  • Fig. 1 shows a side elevation of part of a cycle bridge according to the invention.
  • Fig. 2 shows a cross-section of a cycle bridge according to the invention.
  • the structural member was composed of two longitudinal girders 3 (length 10 m), which were glued to a sheet 4 (surface area 10 x 2.5 m).
  • the longitudinal girders 3 were made of unsaturated polyester resin based on isophthalic acid and reinforced with fibres of Twaron type 1055 161 Ofl 000 (poly(para-phenylene terephthalamide) having a modulus of elasticity of 120 GPa (measured in accordance with DIN 65356/ DIN 65382).
  • the fibres were embedded in the synthetic matrix unidirectionally in the longitudinal direction of the longitudinal girder 3 (90% of the total weight of fibres in the bottom) and in its transverse direction (10% of the total weight of fibres in the bottom).
  • a fabric of the same fibres was embedded, such that the ends and picks both were at an angle of 45° to the longitudinal axis of the longitudinal girder 3.
  • the fabrics extended up to 5 centimeters in the bottom side.
  • each of the longitudinal girders 3 had a width of 40 cm, the two sides had a height of 60 cm. The sides were at an angle ( ⁇ ) to the bottom side of 95°.
  • dowels were provided (not shown).
  • the sheet 4 had raised edges 5, and the tray thus formed was pumped full of concrete 6.
  • Hardening of the concrete 6 left the longitudinal girders 3 and the sheet 4 bonded to the concrete 6 by means of the dowels.
  • an anchorage 7 was provided in the concrete 6 to secure a connection with the pier 2.
  • a box 8 was provided around the longitudinal girders 3, hiding them from view. Between the box 8 and the pier 2 supporting blocks 9 were mounted.
  • the box 8 was also made of the aforementioned, fibre-reinforced polyester resin.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Chemical & Material Sciences (AREA)
  • Composite Materials (AREA)
  • Bridges Or Land Bridges (AREA)
  • Rod-Shaped Construction Members (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)

Abstract

L'invention porte sur un élément (3) de structure destiné à des ponts, à des planchers et analogues et comprenant au moins une poutre longitudinale de section (3) trapézoïdale, rectangulaire, en V ou en U, sur laquelle on a déposé une dalle (6) de béton; cette poutre est réalisée dans un matériau synthétique, et au moins son côté parallèle à la dalle de ciment est renforcé à l'aide de fibres parallèles présentant un module interne d'élasticité supérieur à 50 Gpa. Cet élément de structure simplifie de manière appréciable la construction de ponts et de planchers, et il est d'un faible poids.
PCT/EP1996/003102 1995-07-11 1996-07-10 Element de structure destine a des ponts et a des planchers WO1997003249A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
AU66159/96A AU693037B2 (en) 1995-07-11 1996-07-10 Structural member for bridges and floors
EP96925754A EP0837970B1 (fr) 1995-07-11 1996-07-10 Element de structure destine a des ponts et a des planchers
DE69602266T DE69602266T2 (de) 1995-07-11 1996-07-10 Bauelement für brücken und boden

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL1000770 1995-07-11
NL1000770A NL1000770C2 (nl) 1995-07-11 1995-07-11 Constructiedeel voor bruggen en vloeren.

Publications (1)

Publication Number Publication Date
WO1997003249A1 true WO1997003249A1 (fr) 1997-01-30

Family

ID=19761292

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1996/003102 WO1997003249A1 (fr) 1995-07-11 1996-07-10 Element de structure destine a des ponts et a des planchers

Country Status (7)

Country Link
EP (1) EP0837970B1 (fr)
AT (1) ATE179475T1 (fr)
AU (1) AU693037B2 (fr)
CA (1) CA2226861A1 (fr)
DE (1) DE69602266T2 (fr)
NL (1) NL1000770C2 (fr)
WO (1) WO1997003249A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL1007625C2 (nl) * 1997-11-26 1999-05-27 Haitsma Beton Bv Constructie-element, werkwijze voor het vervaardigen daarvan en parkeervloer voorzien van dergelijke constructie-elementen.
EP1425484A1 (fr) * 2001-08-14 2004-06-09 Wagners Composite Fibre Technology Pty Ltd. Poutre composite et procede de fabrication de celle-ci

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101440598B (zh) * 2008-12-23 2010-06-16 重庆交通大学 钢箱-砼组合箱板拱结构及其施工方法

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1500829A (fr) * 1966-05-10 1967-11-10 Procédé de construction de ponts mixtes acier-béton et ponts en résultant
DE1931431A1 (de) * 1969-06-20 1970-12-23 Hoesch Ag Fahrbahntafel,insbesondere fuer Stadthochstrassen
NL7115625A (fr) * 1971-11-12 1973-05-15
FR2636082A1 (fr) * 1988-09-06 1990-03-09 Hornn Francois Passerelle, notamment pour pietons
FR2683559A1 (fr) * 1991-11-12 1993-05-14 Union Travaux Tirant pour construction composite modulaire, notamment pour structure portante en caisson.

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2346497A1 (fr) * 1975-11-18 1977-10-28 Metalliques Entrepr Cie Fse Perfectionnements apportes aux ponts metalliques, plus specialement aux ponts legers du genre des passerelles pour pietons

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1500829A (fr) * 1966-05-10 1967-11-10 Procédé de construction de ponts mixtes acier-béton et ponts en résultant
DE1931431A1 (de) * 1969-06-20 1970-12-23 Hoesch Ag Fahrbahntafel,insbesondere fuer Stadthochstrassen
NL7115625A (fr) * 1971-11-12 1973-05-15
FR2636082A1 (fr) * 1988-09-06 1990-03-09 Hornn Francois Passerelle, notamment pour pietons
FR2683559A1 (fr) * 1991-11-12 1993-05-14 Union Travaux Tirant pour construction composite modulaire, notamment pour structure portante en caisson.

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
L HOLLOWAY: "bridging the gap", ENGINEERING, vol. 230, no. 6, June 1990 (1990-06-01), LONDON, pages ace18 - ace20, XP000136028 *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL1007625C2 (nl) * 1997-11-26 1999-05-27 Haitsma Beton Bv Constructie-element, werkwijze voor het vervaardigen daarvan en parkeervloer voorzien van dergelijke constructie-elementen.
EP1425484A1 (fr) * 2001-08-14 2004-06-09 Wagners Composite Fibre Technology Pty Ltd. Poutre composite et procede de fabrication de celle-ci
EP1425484A4 (fr) * 2001-08-14 2005-03-09 Wagners Composite Fibre Techno Poutre composite et procede de fabrication de celle-ci

Also Published As

Publication number Publication date
DE69602266T2 (de) 1999-10-14
EP0837970B1 (fr) 1999-04-28
AU6615996A (en) 1997-02-10
ATE179475T1 (de) 1999-05-15
AU693037B2 (en) 1998-06-18
EP0837970A1 (fr) 1998-04-29
NL1000770C2 (nl) 1997-01-14
CA2226861A1 (fr) 1997-01-30
DE69602266D1 (de) 1999-06-02

Similar Documents

Publication Publication Date Title
EP0929724B1 (fr) Support modulaire composite a matrice de polymere
US4300320A (en) Bridge section composite and method of forming same
AU2016265049B2 (en) A module for a structure
US5640825A (en) Method of strengthening masonry and concrete walls with composite strap and high strength random fibers
US6081955A (en) Modular polymer matrix composite support structure and methods of constructing same
US7197854B2 (en) Prestressed or post-tension composite structural system
US6023806A (en) Modular polymer matrix composite support structure and methods of constructing same
US7137226B2 (en) Laminated support mat
US5457839A (en) Bridge deck system
CN103352417B (zh) 一种预应力混凝土变截面箱梁桥、挂篮及其施工方法
AU693037B2 (en) Structural member for bridges and floors
US4079476A (en) Fiberglass footbridge
CA2476763C (fr) Element structurel composite
CN203270434U (zh) 一种预应力混凝土变截面箱梁桥
KR100387550B1 (ko) 교량의 내진교각용 탄소섬유 거푸집 및 그 거푸집제조방법과 그 거푸집을 이용한 내진교각 시공방법
KR20090068852A (ko) 보강부가 구비된 코어 및 이 코어를 이용한 섬유보강플라스틱재로 된 상판모듈
US20060207216A1 (en) Panel-type construction element
KR20080021935A (ko) 섬유보강 플라스틱재로 된 상판모듈
CA2234766A1 (fr) Systeme de tablier de pont
MXPA96002913A (en) Improved platform system exoderm

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): AU CA US

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): AT BE CH DE DK ES FI FR GB GR IE IT LU MC NL PT SE

DFPE Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101)
121 Ep: the epo has been informed by wipo that ep was designated in this application
WWE Wipo information: entry into national phase

Ref document number: 1996925754

Country of ref document: EP

ENP Entry into the national phase

Ref document number: 2226861

Country of ref document: CA

Ref country code: CA

Ref document number: 2226861

Kind code of ref document: A

Format of ref document f/p: F

WWP Wipo information: published in national office

Ref document number: 1996925754

Country of ref document: EP

WWG Wipo information: grant in national office

Ref document number: 1996925754

Country of ref document: EP