| (11) | EP 3 587 703 A3 |
(12) | EUROPEAN PATENT APPLICATION |
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(54) | MODULAR SELF-BEARING CONSTRUCTION OF A LIFT SHAFT |
(57) A modular, self-supporting structure of a lift shaft comprising columns (1) and crossbeams (2) fixed to each other by connecting elements (4), comprising horizontal elements (41) with openings and a body (43) provided with at least one opening, wherein in the body (43), a vertical element (42) with openings (14) is arranged (14), the vertical element (42) being provided with a reinforced portion (13) with openings (14), wherein the outer surface (431) of the body (43) is connected to the horizontal elements (41) while the inner surface (432) of the body (43) is connected to the outer surface (421) of the vertical element (42), the inner surface (422) of which is connected to the reinforced portion (13) with the openings (14).
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