| 摘要 |
A crash barrier to be arranged in the middle of a dual carriageway and composed of a plurality of elongate barrier elements (1) preferably made of concrete. The elements (1) are arranged successively with the short sides of the respective barrier elements neighbouring each other. Neighbouring barrier elements (1, 1') are interconnected by means of articulated connections (5, 6, 5', 6', 8), which prevent lateral displacement of the interconnected short sides relative to each other, but permit force-absorbing deformation of the crash barrier by pivoting of the barrier elements relative to each other in case a vehicle collides with the crash barrier. Each barrier element (1) has at least two projecting connecting elements (5, 6) from each short side, which are connected with corresponding connecting elements (5', 6') of a neighbouring barrier element (1') by means of a rod (8), which is passed through holes (7) in each connecting element. A sleeve (9) cast into the barrier element (1) permits limited displacement of the connecting elements (5, 6) between two end positions.
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