An essential component for the safe and reliable realization of your building project is the statics of building elements. Various factors have to be taken into account. Building elements have to be dimensioned according to the external conditions and examined with regard to their individually required stability, load size and the type of fastening.
For the pre-dimensioning of the components, we give you here some hints for the determination of the load sizes.
If you have any further questions regarding your individual construction project, please do not hesitate to contact us.
According to the current DIN 1055-4 of March 2005, the wind loads for buildings are to be determined on the basis of the wind zones in conjunction with the building height, whereby different suction and pressure zones are to be distinguished in the area.
A design aid for determining the wind loads for wall and roof components can be found in our download area under the heading "Selection aids".
Due to the new version of DIN 1055-5 from July 2005, the snow loads for buildings are determined on the basis of the snow zones in connection with the terrain height. For a correct allocation of the object location, the current list of the German Institute for Building Technology must be taken into account in any case.
In contrast to earlier load approaches, an unusual load combination has been added, especially in the northern German lowlands. In addition, snow accumulations on rising structural members and roof overhangs must also be taken into account for the exact design, but these are not determined as part of the preliminary design.
A design aid for determining snow loads for roof components can be found in our download area under the heading "Selection aids".
Due to solar radiation and the resulting temperature difference between irradiated and non-irradiated face sheets, sandwich panels can deform towards the warm side. The resulting constraining forces and wrinkling stresses are noted in the support width tables with the division into color groups.
Illustrations courtesy of Pöter & Möller GmbH
In the case of the single span girder, the temperature deformations occur without restraint - that is, without internal cutting forces and bearing forces.
κ = αt Δ Θ / d
R = 1 / κ = αt d / Δ Θ
Deformation in the center of the field
f = αt Δ Θ / d * L2 / 8
For plane sandwich elements, the deformations at the single span beam are independent of the thickness of the face sheets.
Color shade, color group and brightness value in relation to the support width table PUR sandwich elements
|RAL||Shade||Color group||Brightness value||RAL||Shade||Color group||Brightness value|
|1000||green beige||II||72||6008||brown green||III||16|
|1002||sand yellow||II||68||6011||reseda green||II||43|
|1006||corn yellow||II||63||6018||yellow green||II||50|
|1007||chrome yellow||II||57||6019||white green||I||76|
|1013||pearl white||I||82||6020||chromium oxide green||III||23|
|1015||light ivory||I||81||7001||silver gray||II||52|
|1016||sulfur yellow||I||78||7002||olive gray||II||44|
|1018||zinc yellow||I||80||7013||brown gray||III||27|
|1020||olive yellow||II||53||7015||slate gray||III||28|
|1024||ochre yellow||II||57||7016||anthracite gray||III||21|
|2000||yellow orange||II||51||7035||light gray||I||75|
|2001||red orange||II||40||7032||pebble gray||II||67|
|2002||blood orange||III||38||8004||copper brown||III||33|
|3000||fire red||III||31||8014||sepia brown||III||19|
|5002||ultramain blue||III||20||8016||mahogany brown||III||18|
|5007||brilliant blue||III||33||8023||orange brown||II||40|
|5010||gentian blue||III||22||9001||cream white||I||84|
|5012||light blue||II||46||9002||gray white||I||81|
|6002||deciduous green||III||29||9006||aluminum white||II||66|
|6005||moss green||III||21||9010||pure white||I||90|
The correct verification of the removal of the fastening forces is carried out by the new load assumptions and is becoming increasingly important due to the trend towards concealed fastenings. In the following, we would like to present some special features of the different fastening types.
For correct planning and execution of the fastening, we refer to the installation guidelines of the International Federation for Lightweight Metal Construction (IFBS) as well as to the specifications of the fastener manufacturers and the building inspectorate approvals Z-14.1-4 and Z-14.4-407.
If you have any further questions regarding the fasteners of our construction elements, please do not hesitate to contact us.
Trapezoidal and cassette profiles
Cassette profiles are generally used as wall structures, spanning horizontally from support to support. In this way, they form the inner load-bearing shell of the system and replace the otherwise customary transom construction. The outer wall shells, e.g. made of trapezoidal profiles, can be optimally fastened to the horizontal webs created in this way.
Sandwich elements - visual fixation
The classic joint for sandwich wall elements with visual fixation is characterized by the robust design and the choice of high quality sealing tapes.
Sandwich elements - concealed fixation
The joint geometry enables particularly easy and quick installation. The additional sealing tape in the overlap provides double security.