A timber guardrail for highways made with hardwoods

Jan-Willem van de Kuilen; V.  Antonelli; Ingrid de Pauw

A timber guardrail for highways made with hardwoods

Bio-based Structures & Materials

Research output: Chapter in Book/Conference proceedings/Edited volume › Conference contribution › Scientific › peer-review

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Abstract

A timber guardrail made of sustainable tropical hardwoods has been developed in the Netherlands. The guardrail is an environmentally friendly alternative for zinc-coated steel barriers. The guardrail is made of a combination of two durable hardwood species: angelim vermelho (Dinizia excelsa) from Brazil and azobé (Lophira alata) from Africa. Full-scale tests have shown that the guardrail is able to withstand the impact of a 13000 kg bus driving at a speed of 70 km/h and an impact angle of 20° as well as that of a car of 900 kg having an impact speed of 100 km/h and same angle. Steam bent curved boards are used as energy absorbers from the passenger car impact. After the full-scale tests with the bus, no damage was found in the timber elements, and the guardrail had only to be straightened, saving repair costs during the service life of a guardrail. The guardrail fulfils the requirements specified in European standard EN 1317 Road Safety Systems for the H2 level with accident severity index of 1.0.

Original language	English
Title of host publication	ISCHP 2019 - 7th International Scientific Conference on Hardwood Processing
Editors	Jan-Willem van de Kuilen, Wolfgang Gard
Place of Publication	Delft
Publisher	Delft University of Technology
Pages	278-285
Number of pages	8
Publication status	Published - 2019
Event	ISCHP 2019: 7th International Scientific Conference on Hardwood Processing - Delft University of Technology, Delft, Netherlands Duration: 27 Aug 2019 → 30 Aug 2019 https://www.aanmelder.nl/105829

Conference

Conference	ISCHP 2019: 7th International Scientific Conference on Hardwood Processing
Abbreviated title	ISCHP 2019
Country/Territory	Netherlands
City	Delft
Period	27/08/19 → 30/08/19
Internet address	https://www.aanmelder.nl/105829

Keywords

Wood
Sustainable design
design innovation

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Cite this

@inproceedings{3952e96ae03246e9bfe11ab360df0609,

title = "A timber guardrail for highways made with hardwoods",

abstract = "A timber guardrail made of sustainable tropical hardwoods has been developed in the Netherlands. The guardrail is an environmentally friendly alternative for zinc-coated steel barriers. The guardrail is made of a combination of two durable hardwood species: angelim vermelho (Dinizia excelsa) from Brazil and azob{\'e} (Lophira alata) from Africa. Full-scale tests have shown that the guardrail is able to withstand the impact of a 13000 kg bus driving at a speed of 70 km/h and an impact angle of 20° as well as that of a car of 900 kg having an impact speed of 100 km/h and same angle. Steam bent curved boards are used as energy absorbers from the passenger car impact. After the full-scale tests with the bus, no damage was found in the timber elements, and the guardrail had only to be straightened, saving repair costs during the service life of a guardrail. The guardrail fulfils the requirements specified in European standard EN 1317 Road Safety Systems for the H2 level with accident severity index of 1.0. ",

keywords = "Wood, Sustainable design, design innovation",

author = "\{van de Kuilen\}, Jan-Willem and V. Antonelli and \{de Pauw\}, Ingrid",

year = "2019",

language = "English",

pages = "278--285",

editor = "\{van de Kuilen\}, Jan-Willem and Wolfgang Gard",

booktitle = "ISCHP 2019 - 7th International Scientific Conference on Hardwood Processing",

publisher = "Delft University of Technology",

address = "Netherlands",

note = "ISCHP 2019: 7th International Scientific Conference on Hardwood Processing, ISCHP 2019 ; Conference date: 27-08-2019 Through 30-08-2019",

url = "https://www.aanmelder.nl/105829",

}

van de Kuilen, J-W, Antonelli, V & de Pauw, I 2019, A timber guardrail for highways made with hardwoods. in J-W van de Kuilen & W Gard (eds), ISCHP 2019 - 7th International Scientific Conference on Hardwood Processing. Delft University of Technology, Delft, pp. 278-285, ISCHP 2019: 7th International Scientific Conference on Hardwood Processing, Delft, Netherlands, 27/08/19.

A timber guardrail for highways made with hardwoods. / van de Kuilen, Jan-Willem; Antonelli, V. ; de Pauw, Ingrid.
ISCHP 2019 - 7th International Scientific Conference on Hardwood Processing. ed. / Jan-Willem van de Kuilen; Wolfgang Gard. Delft: Delft University of Technology, 2019. p. 278-285.

Research output: Chapter in Book/Conference proceedings/Edited volume › Conference contribution › Scientific › peer-review

TY - GEN

T1 - A timber guardrail for highways made with hardwoods

AU - van de Kuilen, Jan-Willem

AU - Antonelli, V.

AU - de Pauw, Ingrid

PY - 2019

Y1 - 2019

N2 - A timber guardrail made of sustainable tropical hardwoods has been developed in the Netherlands. The guardrail is an environmentally friendly alternative for zinc-coated steel barriers. The guardrail is made of a combination of two durable hardwood species: angelim vermelho (Dinizia excelsa) from Brazil and azobé (Lophira alata) from Africa. Full-scale tests have shown that the guardrail is able to withstand the impact of a 13000 kg bus driving at a speed of 70 km/h and an impact angle of 20° as well as that of a car of 900 kg having an impact speed of 100 km/h and same angle. Steam bent curved boards are used as energy absorbers from the passenger car impact. After the full-scale tests with the bus, no damage was found in the timber elements, and the guardrail had only to be straightened, saving repair costs during the service life of a guardrail. The guardrail fulfils the requirements specified in European standard EN 1317 Road Safety Systems for the H2 level with accident severity index of 1.0.

AB - A timber guardrail made of sustainable tropical hardwoods has been developed in the Netherlands. The guardrail is an environmentally friendly alternative for zinc-coated steel barriers. The guardrail is made of a combination of two durable hardwood species: angelim vermelho (Dinizia excelsa) from Brazil and azobé (Lophira alata) from Africa. Full-scale tests have shown that the guardrail is able to withstand the impact of a 13000 kg bus driving at a speed of 70 km/h and an impact angle of 20° as well as that of a car of 900 kg having an impact speed of 100 km/h and same angle. Steam bent curved boards are used as energy absorbers from the passenger car impact. After the full-scale tests with the bus, no damage was found in the timber elements, and the guardrail had only to be straightened, saving repair costs during the service life of a guardrail. The guardrail fulfils the requirements specified in European standard EN 1317 Road Safety Systems for the H2 level with accident severity index of 1.0.

KW - Wood

KW - Sustainable design

KW - design innovation

M3 - Conference contribution

SP - 278

EP - 285

BT - ISCHP 2019 - 7th International Scientific Conference on Hardwood Processing

A2 - van de Kuilen, Jan-Willem

A2 - Gard, Wolfgang

PB - Delft University of Technology

CY - Delft

T2 - ISCHP 2019: 7th International Scientific Conference on Hardwood Processing

Y2 - 27 August 2019 through 30 August 2019

ER -

A timber guardrail for highways made with hardwoods

Abstract

Conference

Keywords

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