Structural bearing
A structural bearing is provided having at least one sliding element made of a sliding material that contains at least one polymeric plastic, wherein the siding material has a melting point temperature of more than 210° C. and a modulus of elasticity in tension according to DIN ISO 527-2 of less than 1800 MPa.
1. A structural bearing having at least one sliding element made of a sliding material that contains at least one polymeric plastic, wherein
the sliding material has a melting point temperature of more than 210° C. and a modulus of elasticity in tension according to DIN ISO 527-2:2012 of less than 1800 MPa,
wherein the sliding material further has a characteristic compressive strength of at least 250 MPa at 48° C. and/or at least 220 MPa at 70° C. and/or at least 200 MPa at 80° C. and wherein the sliding material contains a polyketone as the polymeric plastic.
2. The structural bearing according to claim 1 , wherein the unlubricated sliding material in a short-time sliding friction test pursuant to EN 1337-2:2004 supplement D has a maximum friction coefficient at 21° C. and a contact pressure of 60 MPa of at least 0.05.
3. The structural bearing according to claim 1 , wherein the sliding material has a ratio of static friction coefficient to dynamic friction coefficient (μ s /μ dyn ) that is smaller than 1.4.
4. The structural bearing according to claim 1 , wherein the sliding material has a yield strength of more than 15%.
5. The structural bearing according to claim 1 , wherein the sliding material is vulcanized onto an elastomer.
6. The structural bearing according to claim 1 , wherein the sliding material contains a polyamide having a water saturation of at least 5%, as the polymeric plastic.
7. The structural bearing according to claim 1 , wherein a water supply for ensuring a permanent water saturation of the sliding material is assigned to the sliding element.
8. The structural bearing according to claim 1 , wherein the sliding element is disposed in a water-holding basin.
9. The structural bearing according to claim 1 , wherein the sliding element at least partially is surrounded by a water vapor-holding casing.
10. The structural bearing according to claim 1 , wherein the sliding material in addition to the at least one polymeric plastic contains at least one further polymeric plastic and/or at least one filler or an additive.
11. The structural bearing according to claim 1 , wherein the sliding material has been cross-linked by means of radiation and/or chemical treatment.
12. The structural bearing according to claim 1 , wherein it is configured as an energy-dissipating friction pendulum bearing.
13. The structural bearing according to claim 1 , wherein it is configured as an elastomeric sliding bearing.
14. The structural bearing according to claim 13 , wherein individual sub-segments of the sliding disc comprise another sliding material of a polyamide, a PTFE and/or a UHMWPE.
15. The structural bearing according to claim 1 , wherein the sliding element is configured as a flat sliding disc and/or curved sliding disc.
16. The structural bearing according to claim 15 , wherein the sliding disc is configured in segments and has at least two sub-segments.
17. The structural bearing according to claim 16 , wherein the sliding disc is configured from a plurality of sub-segments that are preferably round and have a diameter of 20 to 50 mm.