The present disclosure relates to a protective structure having a plurality of supports arranged spaced apart from each other; having a trapping device which is guided on the supports via at least one support cable arrangement; and having a ground anchorage for free ends of the at least one support cable arrangement. The ground anchorage is designed as a deadman anchorage.

A protective construction, such as a fence for a race track, may include a device for energy dissipation, e.g., in line with a guy wire. In some examples, the energy dissipation device may have a braking profile and a cutting unit having at least one blade that can be pulled through the braking profile along its longitudinal axis.

A wire netting, in particular a safety net, includes a plurality of helices which are braided with one another and at least one of which is manufactured of at least one single wire, a wire bundle, a wire strand, a wire rope and/or another longitudinal element with at least one wire, in particular made of a high-tensile steel. The wire is bendable in a reverse bend test in opposite directions, by at least 90 respectively, about at least one bending cylinder having a diameter of maximally 2 d, at least M times without breaking, wherein M may be determined (by rounding down if applicable) to be C.Math.R.sup.0.5.Math.d.sup.0.5 and wherein a diameter d of the wire is given in mm, R is a tensile strength of the wire in N mm.sup.2 and C is a factor of at least 400 N.sup.0.5 mm.sup.0.5.

A collapsible runway side barrier for preventing foreign object debris (FOD) from entering a runway and taxiway. The barrier may have an aerodynamic profile, one side of the barrier profile may be convex and the other side of the barrier profile may be concave. The side barrier may further have ground attachment elements and may be constructed to collapse if the landing wheels of an aircraft impact the barrier.

A wire netting, in particular a safety net, has a plurality of helices which are braided with one another and at least one of which is manufactured of at least one single wire, a wire bundle, a wire strand, a wire rope and/or another longitudinal element with at least one wire, made of a high-tensile steel, and which includes a plurality of legs, which has a plurality of bending regions respectively connecting two legs, and which has a transverse extension along a frontal direction, perpendicularly to a main extension plane of the helix, wherein, in a press test between parallel plates, including a pressing by moving the plates along a press path in parallel to the frontal direction, a test piece of the helix, taken from the helix and including at least five legs and at least four bending regions, shows a spring characteristic curve which has in a press path force diagram, starting from a start of the press path, a first partial characteristic curve extending at least approximately linearly and having a first gradient.

A high-strength wire mesh formed by a wire having a tensile strength exceeding 2200 MPa, and having an amount of deflection of 707 mm or greater as a net body under the following conditions: a length of a cantilever beam that supports the net body in a line wire direction in a cantilevered state is 1000 mm, and an amount of displacement in a vertical direction of a free end at this situation is defined as the amount of deflection. In this manner, a high-strength wire mesh that is formed by a wire with a high tensile strength and that also has the followability to the unevenness of the slope surface is provided.

An uprightly-arranged support structure of a protective fence, the protective fence including: a plurality of supports arranged to stand at intervals, the plurality of supports having respective bottom portions thereof arranged to stand via a ground plate on a slope; and a protective net spread between the plurality of supports, wherein the bottom portions of the plurality of supports are arranged to stand so as to be slidable in conjunction with the ground plate in a predetermined direction on the slope.

A lattice structure, in particular a steel lattice structure, includes at least one longitudinal element and includes at least one edge element which runs perpendicularly or obliquely with respect to the longitudinal element, is embodied as a single wire, rod, wire strand, tube or profile and forms in particular at least a portion of a lattice edge, wherein the longitudinal element is wound multiple times around the edge element for its fastening to the edge element in a fastening region of the edge element.

A method for producing helices for a chain-link net, said helices for forming the chain-link net being interconnected, and rotated into one another, wherein the helices are produced from at least one longitudinal element, in particular a single wire, a wire bundle, a wire strand, and/or a wire rope, with at least one wire being partially implemented from a high-tensile steel, and wherein the helices are bent so that they include a plurality of first legs, a plurality of second legs, and a plurality of bending regions that interconnect a first leg and a neighboring second leg, wherein the helices are bent, by a braiding knife assembly comprising at least one braiding knife, in such a manner that at least the center points of the first legs and/or at least the center points of the second legs of a completely bent helix each lie substantially in one plane respectively.

A wire netting, in particular a safety net, has a plurality of helices which are braided with one another and at least one of which is manufactured of at least one single wire, a wire bundle, a wire strand, a wire rope and/or another longitudinal element with at least one wire, made of a high-tensile steel, and which includes a plurality of legs, which has a plurality of bending regions respectively connecting two legs, and which has a transverse extension along a frontal direction, perpendicularly to a main extension plane of the helix, wherein, in a press test between parallel plates, including a pressing by moving the plates along a press path in parallel to the frontal direction, a test piece of the helix, taken from the helix and including at least five legs and at least four bending regions, shows a spring characteristic curve which has in a press path force diagram, starting from a start of the press path, a first partial characteristic curve extending at least approximately linearly and having a first gradient.