Double I-beam

The articles I-Joist and double I-joist overlap thematically. Help me to better differentiate or merge the articles (→  instructions ) . To do this, take part in the relevant redundancy discussion . Please remove this module only after the redundancy has been completely processed and do not forget to include the relevant entry on the redundancy discussion page{{ Done | 1 = ~~~~}}to mark. Olaf Studt ( discussion ) 5:02 p.m., Feb. 17, 2018 (CET)

Floor construction with an inner grid made of double I-beam beams

A double I-beam girder is a construction element made from wood materials. A double I-beam is constructed in a similar way to a double T-beam . Two straps made of glued plywood ( veneer plywood ) are connected by a web made of OSB ( coarse chipboard ) using special glue and thus form a rigid beam. This carrier is very light and at the same time has a high load-bearing capacity.

The double I-beam girder can be used both horizontally ("beam") and vertically ("column"). The usual wooden fasteners such as wooden nails, screws and metal connectors are used to build with this beam. Building with this system is particularly popular in the USA, where this invention also originates from, since multi-storey buildings can be erected in a very short time using lightweight construction.

In the German-speaking area, the double I-beam girder is rarely used, if then often used in conjunction with other construction methods. The double-I-beam girder has proven itself particularly in the construction of passive houses, as it enables, for example, less wood and more insulation in the wall construction, without having to compromise on load-bearing capacity. The disadvantage is the low stability in the event of fire.