Clamped wooden supports
Clamping through potting
One of the most common methods of anchoring timber columns securely and stably in the foundation is by grouting. Here, the vertical loads are transmitted via the contact of the end face, while shear force and moment are introduced into the foundation via pressure at right angles to the grain.
Areas of application and regulations
However, it should be noted that grouted supports should only be used inside enclosed or covered spaces where the average relative humidity of the surrounding air is ≤ 70 % and the supports, including their clamping area, are not exposed to precipitation or other wetness (including that from use). In addition, the foundation base must be at least 0.5 m above the highest groundwater level, unless special measures are taken to keep groundwater away from the foundation. No planned clamping moments from permanent loads may occur.