详情

原文传递 Developing h4-safety barriers for Dutch motorways.

题名：	Developing h4-safety barriers for Dutch motorways.
作者：	VERWEIJ-A (Ministry of Transport, Public Works and Water Management, The Netherlands)
关键词：	CONFERENCE-; 8525-; CENTRAL-RESERVE; 2914-; SAFETY-FENCE; 1686-; STEEL-; 4542-; CONCRETE-; 4755-; DESIGN-OVERALL-DESIGN; 9011-; FLEXIBILITY-; 5931-; ABSORPTION-; 6758-; ENERGY-; 5480-; MOVEMENT-; 5483-; DECELERATION-; 5416-; SIMULATION-; 9103-; NETHERLANDS-; 8078-
摘要：	A heavy vehicle that crosses the central reserve of a motorway may cause a severe accident. After the occurrence of such accidents in the Netherlands, a discussion started about the containment level of safety barriers along motorways. This resulted in a project aimed at the development of safety barriers that meet the highest containment level, the H4-level in the European standard EN 1317-2. After an investigation of existing H4-safety barriers, new designs were made for a rigid steel barrier, a rigid concrete barrier and a flexible steel safety barrier. The rigid barriers are widened versions of existing Dutch barriers: barriers with the so-called 'STEP'-profile. The flexible steel H4-barrier is a fully new design. In cross-section the barrier has the shape of a triangle which stands on one of its angles. If a vehicle runs into it, the barrier will turn over to a certain extent and by doing so it absorbs part of the kinetic energy. The deceleration of a colliding car is expected to be much lower (=safer) compared to that in a collision with a rigid construction. The design of the H4-barriers was made in conjunction with impact tests and heavy vehicle simulations using the VEDYAC computer model. The simulations show that the present designs meet the H4-requirements. For the covering abstract and the URL of the conference see ITRD E205706. (Author/publisher).
总页数：	PROCEEDINGS OF THE CONFERENCE ROAD SAFETY ON THREE CONTINENTS IN PRETORIA, SOUTH AFRICA, 20-22 SEPTEMBER 2000 (VTI KONFERENS 15A). 2001. (15A) pp81-91 (8 Refs.)
报告类型：	科技报告