Transition structure for bridging a structural joint
A transition structure for bridging a structural joint between two structure parts of a structure is provided. The transition structure has at least two trusses mounted on the edges of the structure and at least one slat displaceably mounted thereon, wherein a primary sliding surface is arranged between at least one truss and at least one slat. The primary sliding surface has at least two partial sliding surfaces, which are each arranged in mutually angled sliding planes, the sliding planes meeting in a common line of intersection S which forms an axis of movement A along which the slat can move relative to the truss. At least one sliding plane is arranged at an oblique angle to a plane of movement B of the transition structure.
1 . A transition structure for bridging a structural joint between two structure parts of a structure, having at least two trusses mounted on the structure edges and at least one slat displaceably mounted thereon, a primary sliding surface being arranged between at least one truss and at least one slat,
characterized in that
the primary sliding surface has at least two partial sliding surfaces, each of which is arranged in mutually angled sliding planes, the sliding planes meeting in a common line of intersection(S) which forms an axis of movement (A) along which the slat can move relative to the truss, and at least one sliding plane being arranged at an oblique angle to a plane of movement (B) of the transition structure.
2 . The transition structure according to claim 1 ,
characterized in that
the two sliding planes enclose a first angle (α) which is selected such that, in the state of use of the transition structure, no gap occurs in the area of the primary sliding surface.
3 . The transition structure according to claim 2 ,
characterized in that
the first angle (α) is selected in such a way that, in the ultimate limit state of the transition structure, no gap occurs in the area of the primary sliding surface.
4 . The transition structure according to claim 2 ,
characterized in that
the first angle (α) is between 60 degrees and 160 degrees, or at 90 degrees.
5 . The transition structure according to claim 1 ,
characterized in that
the two sliding planes are arranged so that the line of intersection(S) is parallel to a longitudinal axis of a truss.
6 . The transition structure according to claim 1 ,
characterized in that
several primary sliding surfaces are arranged along a truss and form a common axis of movement (A).
7 . The transition structure according to claim 1 ,
characterized in that
the truss has at least one sliding plate in the area of the primary sliding surface.
8 . The transition structure according to claim 1 ,
characterized in that
the truss is made of a sliding material, optionally wherein the sliding material is metallic.
9 . The transition structure according to claim 1 ,
characterized in that
the primary sliding surface comprises a permanently lubricated sliding material, optionally wherein the lubricated sliding material comprises PTFE, UHMWPE, POM and/or PA.
10 . The transition structure according to claim 1 ,
characterized in that
at least two partial sliding surfaces angled relative to one another are arranged in such a way that the corresponding sliding planes form the shape of a pitched roof.
11 . The transition structure according to claim 1 ,
characterized in that
at least two partial sliding surfaces angled relative to one another are arranged in such a way that the corresponding sliding planes form the shape of an upside-down pitched roof.
12 . The transition structure according to claim 1 ,
characterized in that
at least two partial sliding surfaces angled relative to one another are formed symmetrically relative to one another with respect to a plane of symmetry (E) extending through the line of intersection(S) in the vertical direction relative to the plane of movement (B).
13 . The transition structure according to claim 1 ,
characterized in that
at least one sliding plane is inclined with respect to the plane of movement (B) by a second angle (β) between 10 degrees and 60 degrees, or with 45 degrees.
14 . The transition structure according to claim 1 ,
characterized in that
the transition structure has at least one intersection point (K) of a slat with a truss, at which a sliding bearing, preferably rotatable about an axis (V) vertical to the plane of movement (B), with a support plate is arranged between the truss and the slat, the primary sliding surface extending between the truss and the support plate.
15 . The transition structure according to claim 14 ,
characterized in that
the support plate is deformable so that the primary sliding surface has at least one partial sliding surface which is horizontal to the plane of movement (B) as a function of the magnitude of the applied load.
16 . The transition structure according to claim 14 ,
characterized in that
the sliding bearing further comprises a base plate via which the sliding bearing is attached to the slat, and optionally wherein the slat or the base plate comprises a first trunnion via which the sliding bearing is rotatably attached to the slat.
17 . The transition structure according to claim 16 ,
characterized in that
the sliding bearing further comprises an elastomeric layer disposed between the support plate and the base plate.
18 . The transition structure according to claim 16 ,
characterized in that
the sliding bearing has at least one shear surface which is arranged in a plane between the support plate and the base plate, the plane being arranged at an oblique angle to the sliding planes of the partial sliding surfaces which are angled relative to one another.
19 . The transition structure according to claim 14 ,
characterized in that
the transition structure has, in the area of at least one intersection point (K), a bracket arranged on the slat and having a biasing unit with a sliding material and the bracket and the biasing unit are designed in such a way that the slat is biased at the intersection point (K) with respect to the truss and is displaceable and/or is mounted rotatably about the axis (V) vertical to the plane of movement (B), and optionally wherein the sliding material is a sliding spring.
20 . The transition structure according to claim 19 ,
characterized in that
the bracket has a second trunnion via which the biasing unit is rotatably attached to the bracket,
wherein the first trunnion and the second trunnion form a common axis of rotation (D) and the slat is rotatably mounted about the axis of rotation (D) with respect to the truss at the intersection point (K).
21 . The transition structure according to claim 19 ,
characterized in that
the biasing unit is designed to be guide-neutral for movements of the slat relative to the truss along the primary sliding surface.
22 . The transition structure according to claim 19 ,
characterized in that
the sliding material of the biasing unit comprises a permanently lubricated sliding material, optionally wherein the lubricated sliding material comprises PTFE, UHMWPE, POM and/or PA.
23 . The transition structure according to claim 19 ,
characterized in that
the biasing unit has a screw for biasing the biasing unit in an installed state.
24 . The transition structure according to claim 19 ,
characterized in that
the biasing unit is designed in such a way that it can be installed biased and relieved to a predetermined biasing dimension in an installed state.
25 . The transition structure according to claim 1 ,
characterized in that
the transition structure has at least one truss box in which one end of the truss is displaceably and/or rotatably mounted.
26 . The transition structure according to claim 25 ,
characterized in that
the end of the truss has at least one bore and the truss box has at least one trunnion via which the end of the truss is mounted in the truss box.
27 . The transition structure according to claim 25 ,
characterized in that
the truss box comprises an upper sliding bearing arranged above the truss, wherein a primary sliding surface is arranged between the upper sliding bearing and the truss.
28 . The transition structure according to claim 27 ,
characterized in that
the upper sliding bearing is rotatably attached to the truss box.
29 . The transition structure according to claim 27 ,
characterized in that
the upper sliding bearing is a sliding spring.
30 . The transition structure according to claim 1 ,
characterized in that
the transition structure is a swivel truss design.
31 . The transition structure according to claim 1 ,
characterized in that
the transition structure is a guided cross-tie design for railroad bridge construction.
32 . The transition structure according to claim 1 ,
characterized in that
a plurality of, preferably two, primary sliding surfaces, whose axes of movement (A) differ from one another, are arranged between a truss and a slat.
33 . The transition structure of claim 32 ,
characterized in that
the axes of movement (A) are parallel to each other and are preferably arranged in the plane of movement (B) of the transition structure or in a plane parallel thereto.