Staircase for bridge systems, has two stair stringers and steps, where one step is either detachably and/or rotatably arranged between stair stringers or supported on stop, and is connected with stair stringers by bolt fastener

摘要

The staircase (1) has two stair stringers (2, 3) and steps (4), where one step is either detachably and/or rotatably arranged between the stair stringers or supported on a stop (18). The step is connected with the stair stringers by a bolt fastener (15), where the bolt fastener is guided into a T-section in an upper side of the stair stringers. The stair stringers are hollow sections e.g. extruded aluminum sections, and another T-section is provided for arrangement of a vertical support.