• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    SUMMARY The present invention relates to a junction between structural elements of three consisting of a structural element (1,2,11) with a first fiber direction and a structural element (3.3 °, 3 ", 13, 14) with a second fiber direction which is different from the first fiber direction, a plurality of screw connections (5, R) Jr being applied to connect the structural members and forming an inboard contact surface (M1, M2), characterized in that the screw connections Jr applied an oblique angle α to the contact surface (M1, M2) and that the screw connections are applied direction with one of the fiber directions.
    公开号:SE1351491A1
    申请号:SE1351491
    申请日:2013-12-12
    公开日:2015-06-13
    发明作者:Greger Lindgren
    申请人:Martinson Group Ab；
    IPC主号:
    专利说明:

    Further features and advantages of the invention and its embodiments will become apparent from the dependent claims and the following detailed description of preferred embodiments of the invention.
    In the following detailed description of the embodiments, special expressions and designations have been chosen for the sake of clarity. These terms and designations should thus not be construed as limitations on, but as an example within, the scope of the invention.
    Fig. 1a shows a side view of a first embodiment of the invention. Fig. 1b shows how the screw connections are arranged in a perforated side view of the embodiment shown in Fig. 1a.
    Fig. 1c shows a cross section through the node shown in Fig. 1a.
    Fig. Id shows a view from above of the node shown in Fig. 1a.
    Fig. 2 shows a truss of structural elements of wood with nodes according to the invention.
    Fig. 3a shows a longitudinal sectional view of the truss according to Fig. 2.
    Fig. 3b shows section A-A of the truss according to Fig. 3a.
    Fig. 3c shows sections B-B of the truss according to Fig. 3.a Fig. 4 shows a truss of structural elements of wood with another embodiment of a node according to the invention.
    DESCRIPTION OF EMBODIMENTS Figs. 1a-id show a first embodiment of a node according to the invention between construction elements of tra. The node is intended to be used in, for example, a truss for a truss or similar building elements (see Fig. 2). The construction elements consist of a beam of beams, preferably glued beams whose fiber direction corresponds to the land direction of the beam.
    The node is formed by two horizontal beams 1,2 with a first fiber direction, and an angled beam 3 with a second fiber direction which is different from the first fiber direction. The horizontal beam may be part of an over- or sub-frame of a truss, and the angled beam represents a beam connecting the frames of such a truss. The angle between the first fiber direction and the 3 second fiber direction differs by one angle (3, where 13 is between 0 and 900, preferably between 30 ° and 70 °. The angle p is selected and adjusted according to the location of the node in the truss.
    The two horizontal beams 1,2 are arranged in parallel with the long sides 1.2 and 2.1 opposite each other. The angled beam 3 has a beam 3.3 which is arranged between the long sides of the two horizontal beams and abuts so that contact surfaces M1 are embedded. M2 is formed between one longitudinal side 3.1 of the angled beam and the longitudinal side 1.2 of the longitudinal side 3.2 of the angled beam, respectively.
    The node is further threaded with a plurality of screw connections 5 (1) -S (n), R (1) -R (n) which are applied by screwing through one of the horizontal trabars 1,2 with the first fiber direction and at least partly through the angled the beam 3 with the other fiber direction. The screw connections 5 (1) - 5 (n), R (1) - R (n) thereby connect the traverse beams which abut against each other, the formed contact surface is hung. The screw connections are distributed across the surface so that the load is evenly distributed over the entire node. The screw connections can be countersunk in the horizontal beam, or be screwed in without countersinking.
    In the following, for the sake of simplicity, an individual screw joint is described, but the description is intended to apply to a plurality of screw joints applied in a similar manner in the node as shown in the figures.
    The angled beam in Figs. 1a-d is loaded with a compressive force FT neat hangs the fiber direction. Figs. 1a-d show that the screw connection, screw 5, is screwed in at an oblique angle a towards the contact surface M1 (see Fig. 1d). The angle α corresponds to the angle between the contact surface and the screw. The corresponding angle α occurs between the screw S and the surface of the longitudinal side of the horizontal beam 1.1.
    Fig. 1b shows that the screw joint is screwed in the direction of one of the fiber directions, namely the fiber direction of the angled beam. The screw is thus screwed into the horizontal beam at an angle α to the contact surface M1 and said that the axial direction of the screw substantially coincides with the fiber direction of the angled beam and thus also in the direction of the haste. The advantage of this is that when loading along the fiber direction of the angled beam, the load is received in the axial direction of the screw. In this case, the screw S is directed obliquely downwards in the direction of the other fiber direction through the horizontal beam and partly through the angled beam. Thereby it is achieved that the axial load, the compressive force FT. directed downwards in the longitudinal direction on the angled beam, tensile loads the screw joint in the axial direction of the screw.
    The node according to the invention can thus absorb larger loads, which means that a roof truss which is joined together in this way can be constructed with a larger rack width. Of natural shells, the axial direction of the screw cannot completely coincide with the direction of the angled beam, but unlike the screw joint yore perpendicularly mounted to the contact surface M1, the node according to the invention means that the screw joint load-bearing shape in the axial direction is used and can be loaded to a greater degree.
    The screws can be fully threaded or partially threaded. The screw connection can be arranged so that the screw head abuts the surface of the longitudinal side of the horizontal beam or be countersunk. The number of screw connections is selected and adapted to the calculated load at the node.
    In another embodiment (shown in Fig. 2, the left knot K.2), the screw joints S (1) -S (n), R (1) -R (n) are applied, in the direction of the fiber direction of the angled beam 3 "sa. that instead of an axial load directed upwards along the length ph of the angled beam, ie a tensile force ED, tensile loads the screw joints in the axial direction of the screws.The screw joints are applied at an angle a to the contact surfaces M1, M2 and directed in the FD direction of the load, in this case substantially in the fiber direction of the angled beam in the figure.
    In yet another embodiment (not shown in the figure) the screw joint can be applied in the direction of the fiber direction of the angled beam so that an axial load, a tensile force directed upwards along the length of the angled beam pressurizes the screw joint in the axial direction of the screw. The screw connection is then applied opposite the direction of the load, in such a case in the descending direction and substantially in the fiber direction of the angled beam in the figure.
    In order for the screw S (1) —S (n) to be loaded in the axial direction of the screw At the junction, the angle α between the axial direction of the screw and the contact surface M1 * Os should be between 0 and 70 ° from the surface, preferably between 0 and 40 °. If the angle α is very small, the number of screws that can be fitted in the node is limited, which reduces the load absorption. If the angle is rigid, the desired effect decreases that the load hangs the angled strut should be taken up in the axial direction of the screw.
    It is advantageous that the screw connections S (1) -S (n) and the opposite screw connections R (1) -R (n) are screwed in so that opposite screws on each side of the angled beam 3 are distributed with a small offset to avoid that the screw connections S (1) -S (n) and the opposite screw connections R (1) -R (n) are fed into the angled beam.
    In Fig. 1c and Fig. Id it is further shown that the screw connections S (1) -S (n), R (1) -R (n) are screwed in partly through the angled beam 3 with the other fiber direction. Depending on how the angle a is chosen, the length of the screw and the load to be absorbed by the node, the screw connections can be screwed in through the entire angled beam 3.
    In Fig. 1c and Fig. 1d it is shown that a plurality of screw joints S (1) -S (n), R (1) -R (n) are screwed into the respective horizontal beam 1,2 with the first fiber direction and partly through the angled beams 3.
    The screw connections S (1) -S (n) and opposite screw connections R (1) -R (n) are angled at an angle α to the contact surface M1 and the contact surface M2, respectively, and are substantially directed along the fiber direction of the fiber direction of the angled beam as described above. When loading the angled beam along its fiber direction, the screw joints S (1) -S (n) cooperate with the opposite screw joints R (1) -R (n) R (1) to absorb and take up the load.
    Another embodiment of the node according to the invention comprises that the node is further reinforced by joining the horizontal beams 1,2 with the angled beam 3 by gluing the inboard contact surfaces M1 and M2 together to form an adhesive joint before screwing the screw joints into the node. This can be advantageous in some applications when the environment and design elements allow it.
    Fig. 2 shows a part of a truss 10 of structural elements of tr5. The truss comprises two nodes K1, K2 according to the invention. The figure shows that the nodes K1, K2 are arranged directly next to each other in that the angles 3.3 ', 3.3 "of the angled beams 3', 3" are designed to abut each other and form an in-contact area M3. The node K1 with the angled beam 3 'is joined to absorb a compressive force Fr which 5r loads the angled beam 3'. The screw connections S (1) -S (n) and R (1) -R (n) are therefore screwed in an oblique downward direction in the beam 3 '. The node K2 with the angled beam 3 "is joined to absorb a tensile force FD which loads the angled beam 3". The screw connections S (1) -5 (n) and R (1) -R (n) are therefore screwed in an obliquely upward direction in the beam 3 ".
    Fig. 3a shows a longitudinal sectional view of the truss, where it is clearer that the screw connections are screwed in in the direction of the angled beams 3 'and 3 ". 3 'and the screws 5r are thus screwed at an angle a to the contact surface M1, M2 obliquely downwards in the direction of the contact surface M3. Fig. 3c shows section BB of the truss according to Fig. a towards the contact surface M1, M2 and obliquely upwards in the beam 3 'fiber direction ph' correspondingly sat.
    Fig. 4 shows a part of a truss 20 of structural elements of tra with another embodiment of the node according to the invention. This truss 20 comprises the nodes P1 and P2.
    The node P1 consists of a structural element 11, also called a frame part, with a first fiber direction and two structural elements 13, 14 with a second fiber direction which is different from the first fiber direction. In this embodiment of the node according to the invention, the two 6 construction elements 13, 14 consist of beams, also called struts, with a second fiber direction which is angled at an angle 13 to the horizontal construction element 11 with the first fiber direction.
    A plurality of screw joints S (1) -S (n), R (1) -R (n) are applied through the structural members 13, 14 with the second fiber direction and at least partially through the structural member 11 with the third fiber direction to connect the structural members and form a contact surfaces M1 and M2 are embedded between the construction elements. The screw straps are arranged at an oblique angle a to the contact surfaces M1, M2.
    At the junction P1, the screw connections are arranged in the direction of the fiber direction of the angled beams 13,14 in order to cause an axial load on an angled beam 13,14 to load the screw connection in the axial direction of the screw. The node P1 is loaded by an axial load, a compressive force FT, directed downwards in the longitudinal direction on the angled beam. In this case, the screws S are directed obliquely in the direction of the second fiber direction through the angled beam 13 and partly through the horizontal beam 11. This ensures that the axial load, the compressive force FT, tensile loads the screw joint in the axial direction of the screw.
    The node P2 is loaded in the opposite direction by an axially directed tensile force FD directed upwards along the length of the angled beam 13 ', 14', i.e., the force tensile loads the screw headbands in the axial direction of the screws which are screwed obliquely upwards at an angle a to the contact surface the angled beams 13 'and 14' and partly through the horizontal beam 11.
    By joining the truss with the node according to the invention, both in the case of tension and pressure-loaded nodes, it is achieved that the truss' load-bearing shafts, which allow greater construction ranges. In addition, the node according to the invention is simple and time-saving during assembly and thus cost-effective.
    权利要求:
    Claims (12)
    [1]
    A node between structural elements of three consisting of a structural element (1,2,11) with a first fiber direction and a structural element (3,3 ', 3 ", 13, 14) with a second fiber direction which is different from the first fiber direction, a plurality of screw connections (S, R) are arranged to connect the structural elements and form an inboard contact surface (M1, M2), characterized in that the screw connections are arranged at an oblique angle α to the contact surface (M1, M2) and that the screw connections Jr are applied in the direction with one of the fiber directions.
    [2]
    Node according to claim 1, wherein the screw joints are arranged in the direction of the second fiber direction so that an axially directed load (Fd, FT) on the construction element (3,3 ', 3 ", 13,14) with the second fiber direction loads the screw joints in the screws. axial direction.
    [3]
    Node according to claim 1 or 2, wherein the screw joints are arranged in the direction of the second fiber direction so that an axially directed load (Fd, FT) on the construction element 14) with the second fiber direction loads the screw joints in the axial direction of the screws.
    [4]
    Node according to claim 1 or 2, wherein the screw connections are applied in the direction with the second fiber direction so that an axially directed load (Fd, FT) on the construction element (3,3 ', 3 ", 13, 14) with the second fiber direction pressurizes the screw connections in axial direction of the screws.
    [5]
    Node according to any one of the preceding claims, wherein the angle α Jr is between 20 ° and 70 ° towards the contact surface (M1, M2), preferably between 20 ° and 40 °.
    [6]
    A node according to any one of the preceding claims, wherein the first fiber direction and the second fiber direction differ by an angle 5, where 5 Jr between 20 ° and 90 °, preferably between 30 ° and 70 °.
    [7]
    Node according to any one of the preceding claims, wherein the screw connections Jr are applied through the entire structural element (1,2,11) with the first fiber direction and at least partially through the structural element (3,3 ', 3 ", 13,14) with the second fiber direction.
    [8]
    Node according to any one of the preceding claims, wherein the screw connections Jr are applied through the entire structural element (3,3 ', 3 ", 13,14) with the second fiber direction and at least partially through the structural element (1,2,11) with the first fiber direction,
    [9]
    Node according to any one of the preceding claims, wherein a structural element (1,2) with the first fiber direction Jr is arranged on the respective long side of the structural element (3,3 ', 3 ") with the second fiber direction and that a plurality of screw joints (S, R) are mounted on each 8 structural members (1,2) with the first fiber direction and that the screw joints (S, R) cooperatively absorb shaft load on the structural member (3,3 ', 3 ") with the second fiber direction.
    [10]
    Node according to any one of the preceding claims, wherein a structural element (13, 14) with the second fiber direction is arranged on the respective long side of the structural element (11) with the first fiber direction and that a plurality of screw joints (S, R) are arranged on each structural element ( 13,14); Tied the second fiber direction and that the screw joints (S, R) cooperatively absorb axial load on the structural elements (13,14) with the other fiber direction
    [11]
    Node according to any one of the preceding claims, wherein the contact surface (M1, M2) is glued together to form an adhesive joint.
    [12]
    Trusses of wooden structural elements comprising a node according to any one of the preceding claims. 1 / z - e, eeee F13 rsC) 3 Fi3
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    同族专利:
    公开号 | 公开日
    WO2015088437A1|2015-06-18|
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    EP3080362A4|2017-04-19|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    DE706759C|1937-06-16|1941-06-05|Samuel Voss|Wood connection with metal screws|
    US4376362A|1979-02-21|1983-03-15|Steel Web Corporation|Truss employing both metallic and non-metallic webs|
    PL192618B1|1997-06-09|2006-11-30|Sfs Ind Holding Ag|Purlin for coupling together two or more beams half-lap jointed with each other in longitudinal direction and fastening element for jointing such coupling purlins with each other|
    DE20003705U1|2000-02-29|2001-07-12|Sfs Ind Holding Ag Heerbrugg|Connection of two wooden beams that adjoin one another at least approximately at right angles|
    SE518698C2|2001-03-26|2002-11-05|Martinsons Trae Ab|Nodes between structural elements of wood|
    DE202008002697U1|2008-02-26|2009-07-02|Abc Verbindungstechnik Gmbh & Co. Kg|Connection for wooden beam constructions|
    DE102008027873B4|2008-06-11|2010-05-12|Heinz Wieland|Connection of two wooden beams|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    SE1351491A|SE537689C2|2013-12-12|2013-12-12|Central junction between wooden structural elements and trusses|SE1351491A| SE537689C2|2013-12-12|2013-12-12|Central junction between wooden structural elements and trusses|
    PCT/SE2014/051487| WO2015088437A1|2013-12-12|2014-12-11|Interconnection between construction elements of wood and truss structure|
    EP14870363.0A| EP3080362A4|2013-12-12|2014-12-11|Interconnection between construction elements of wood and truss structure|
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