一种高速公路中央分隔带开口护栏的设计开发

Design and Development of a kind of Open Guardrail in Expressway

为方便车辆在紧急情况下通行,高速公路中央分隔带护栏至少2 km就应设置一个开口,开口位置设置中分带活动护栏。开口位置中分带护栏应具备防撞性能要求且具有较高的可移动性,方便开启与关闭。本文设计开发了一种SB级防撞能力的中央分隔带活动护栏。该护栏不仅移动灵活、开启方便,并且适合不同开口长度的中央分隔带开口护栏安装,可以循环利用。

In order to facilitate the passage of special vehicles in emergency,an opening should be set at least 2km away from the median guardrail of expressway,and a movable median guardrail should be set at the opening position.The median strip guardrail at the opening position shall have anti-collision performance requirements and high mobility,which is convenient for opening and closing.In this paper,a kind of movable guardrail with SB level anti-collision ability was designed and developed.The guardrail is not only flexible and easy to open,but also suitable for the installation of median opening guardrails with different opening lengths,which can be recycled.