Patent ID: 9551120
Date: 2017-01-24
CPC Classifications: E01D,E04H,F16F

Claim:
1. A friction damping device for damping the relative movements between a first structural element and a second structural element of a civil engineering construction work, comprising: a first damping system for damping a first relative displacement component between said first structural element and said second structural element, wherein said first damping system comprises a first friction surface and a second friction surface, wherein the first and second friction surfaces are in contact and constrained one against the other to form a first frictional engagement, wherein the first and second friction surfaces can furthermore be moved in translation relative to one another so as to allow said first relative displacement component to be dampened; a second damping system for damping a second relative displacement component between said first structural element and said second structural element, wherein said second damping system comprises a third friction surface and a fourth friction surface, wherein the third and fourth friction surfaces are in contact and constrained one against the other to form a second friction engagement, wherein the third and fourth friction surfaces can furthermore be moved in rotation relative to one another so as to allow said second relative displacement component to be dampened, wherein the first damping system and the second damping system are placed in series.