Cross girder installation for replacing existing wall screen, involves arranging cross girder in plane of wall screen such that load applied by roof on wall screen is transferred to cross girder

摘要

The load applied by the roof (2) on a wall screen (1) is transferred to a cross girder (7) which is arranged in the plane of the wall screen. The wall screen is removed or at least reinforced by the cross girder. An independent claim is also included for a cross girder.