I am going to build a dock/deck in a fairly weather-exposed location by the coast. This means there will be ice impact on the structure with the "wrong" wind. Essentially, it will look like this from the side:
_________
*************\ <----------------6-7 m------------------>
*************\\==========================
****berg*****\______-II__^_________II
***************\______II__1m_______II-------------------~~~~~~~~~high
****************\_____II__v_________II_______water level
*******************************berg***********\~~~~~~~~~~~~~~~~ normal
************************************************\
It will be fan-shaped, approximately 10-15 m wide and extend 6-7 m from the rock, and about 1 meter high. The outer legs are right at the water's edge with a dock overhang of perhaps a meter over the water.
Since there will be some ice impact, I am considering a steel construction for the load-bearing parts, custom-made, prefabricated at a workshop, hot-dip galvanized, and assembled on site, anchored to the rock at each leg and at the back. On this, you can then build with pressure-treated wood at cc60 and decking.
-Does anyone have experience with a similar location or construction?
-What dimensions are appropriate to choose and what CC is used between the steel beams?
-Are 2 legs along with back anchoring sufficient for 6-7 m?
-Which beam is the most cost-effective?
-Should one use RF for the legs that are in the water at high tide?
-Do you fasten the RF threaded rod with chemical anchors in drilled holes or?
-What do you think the steel part costs, hot-dip galvanized and ready?
Many questions; maybe there are even more that I don't realize – but do you have any answers?
