A brush seal for a gas turbine, in particular, an aircraft engine, comprising: • at least one support ring (40; 140; 240; 340; 440; 540) which has a support plate (46; 146; 246; 346; 446; 546) and a support structure (48; 148; 248; 348; 448; 548) that is, in particular, annular in shape, and that is arranged downstream of the support plate (46; 146; 246; 346; 446; 546); and • bristles which are arranged upstream of the support ring (40; 140; 240; 340; 440; 540) and have ends that protrude radially inward beyond the support plate (46; 146; 246; 346; 446; 546), wherein • the support structure (48; 148; 248; 348; 448; 548) is designed so as to yield, preferably with a spring elastic property, when a scraping force acting radially outward occurs on the radially inwardly oriented lateral surface of the support structure (48; 148; 248; 348; 448; 548), whereas the support structure (48; 148; 248; 348; 448; 548) does not yield to an axial operating force when this axial operating force occurs on at least one of the side surfaces of the support structure (48; 148; 248; 348; 448; 548); • the support structure (48; 148; 248; 348; 448; 548) has a plurality of ribs (62, 162, 262, 362, 462) that lie in a plane running substantially radially, and are inclined at least in some sections at an angle (γ) to the radial direction, where the angle (γ) is preferably between 10° and 40°; and • the support plate (46; 146; 246; 346; 446; 546) is less than half as thick in the axial direction as the support structure (48; 148; 248; 348; 448; 548) is. • at least one support ring (40; 140; 240; 340; 440; 540) which has a support plate (46; 146; 246; 346; 446; 546) and a support structure (48; 148; 248; 348; 448; 548) that is, in particular, annular in shape, and that is arranged downstream of the support plate (46; 146; 246; 346; 446; 546); and • bristles which are arranged upstream of the support ring (40; 140; 240; 340; 440; 540) and have ends that protrude radially inward beyond the support plate (46; 146; 246; 346; 446; 546), wherein • the support structure (48; 148; 248; 348; 448; 548) is designed so as to yield, preferably with a spring elastic property, when a scraping force acting radially outward occurs on the radially inwardly oriented lateral surface of the support structure (48; 148; 248; 348; 448; 548), whereas the support structure (48; 148; 248; 348; 448; 548) does not yield to an axial operating force when this axial operating force occurs on at least one of the side surfaces of the support structure (48; 148; 248; 348; 448; 548); • the support structure (48; 148; 248; 348; 448; 548) is designed so as to yield, preferably with a spring elastic property, when a scraping force acting radially outward occurs on the radially inwardly oriented lateral surface of the support structure (48; 148; 248; 348; 448; 548), whereas the support structure (48; 148; 248; 348; 448; 548) does not yield to an axial operating force when this axial operating force occurs on at least one of the side surfaces of the support structure (48; 148; 248; 348; 448; 548); • the support structure (48; 148; 248; 348; 448; 548) has a plurality of ribs (62, 162, 262, 362, 462) that lie in a plane running substantially radially, and are inclined at least in some sections at an angle (γ) to the radial direction, where the angle (γ) is preferably between 10° and 40°; and • the support plate (46; 146; 246; 346; 446; 546) is less than half as thick in the axial direction as the support structure (48; 148; 248; 348; 448; 548) is.