SLIP FORMED CONCRETE STRUCTURE
The invention provides a concrete structure of which at least a part has been formed by slip forming with panels inside the slip form, the panels facing the slip form.
1 . A concrete structure, wherein at least a part of the structure has been formed by slip forming with panels inside the slip form, the panels facing the slip form and that the panels are removable panels that are removed from the structure after slip forming.
2 . The concrete structure according to claim 1 , wherein the structure is for use offshore in ice-infested areas, the structure has an increased thickness as an abrasion allowance in a zone abraded by ice drifting on the sea, the abrasion allowance has been formed by slip forming with panels inside the slip form, the panels facing the slip form.
3 . The concrete structure according to claim 2 , wherein the abrasion allowance of the structure is without steel reinforcement armouring.
4 . (canceled)
5 . The concrete structure according to claim 2 , wherein the structure is the shafts of a gravity base structure or a floating concrete structure.
6 . The concrete structure according to claim 2 , wherein the abrasion allowance is without steel reinforcement armouring having electrical or mechanical contact with the main steel reinforcement armouring
7 . A method of building a concrete structure, wherein at least a part of the structure is formed by slip forming with panels inside the slip form, the panels facing the slip form and that the panels are removed from the structure after the slip forming.
8 . The method according to claim 7 , for building a concrete structure for use offshore in ice-infested areas, the structure has an increased thickness as an abrasion allowance in a zone abraded by ice drifting on the sea, wherein the abrasion allowance is formed by slip forming with panels inside the slip form, the panels facing the slip form.
9 . (canceled)
10 . The method according to claim 8 , wherein the abrasion allowance is formed by concrete, without steel armour reinforcement except of possible fibres that optionally may be steel fibres.
11 . Use of panels inside a slip form, the panels facing the slip form, for building a slip formed concrete structure or a part thereof.
12 . Use according to claim 11 , wherein the concrete structure is for use offshore in ice-infested areas, the structure has an increased thickness as an abrasion allowance in a zone abraded by ice drifting on the sea, the panels are used for building the abrasion allowance by slip forming with panels inside the slip form.