EP0646205A1 - Treillis monocouche a courbure simple ou double, forme de barres et d'elements nodaux - Google Patents

Treillis monocouche a courbure simple ou double, forme de barres et d'elements nodaux

Info

Publication number
EP0646205A1
EP0646205A1 EP94909928A EP94909928A EP0646205A1 EP 0646205 A1 EP0646205 A1 EP 0646205A1 EP 94909928 A EP94909928 A EP 94909928A EP 94909928 A EP94909928 A EP 94909928A EP 0646205 A1 EP0646205 A1 EP 0646205A1
Authority
EP
European Patent Office
Prior art keywords
piece
ropes
node
rope
knot
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
EP94909928A
Other languages
German (de)
English (en)
Inventor
Helmut Eberlein
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mero Raumstruktur GmbH and Co
Original Assignee
Mero Raumstruktur GmbH and Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mero Raumstruktur GmbH and Co filed Critical Mero Raumstruktur GmbH and Co
Publication of EP0646205A1 publication Critical patent/EP0646205A1/fr
Ceased legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B7/00—Roofs; Roof construction with regard to insulation
    • E04B7/08—Vaulted roofs
    • E04B7/10—Shell structures, e.g. of hyperbolic-parabolic shape; Grid-like formations acting as shell structures; Folded structures
    • E04B7/105—Grid-like structures
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/32—Arched structures; Vaulted structures; Folded structures
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/32—Arched structures; Vaulted structures; Folded structures
    • E04B2001/3235—Arched structures; Vaulted structures; Folded structures having a grid frame
    • E04B2001/3241—Frame connection details
    • E04B2001/3247—Nodes
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/32—Arched structures; Vaulted structures; Folded structures
    • E04B2001/3294—Arched structures; Vaulted structures; Folded structures with a faceted surface

Definitions

  • the invention relates to a single or double-curved single-layer framework made of rods and nodes, which is stiffened by a network of tensioned ropes which cross the nodes and are fixed to them.
  • Such a framework is known in dome form from DE3715228 C2.
  • the latter are stiffened in both diagonals by tensioned ropes, which are anchored in the floor at the edge of the half-timbered dome.
  • the truss dome has a first set of bars which are crossed by bars of a second set, the nodes being formed at the crossing points.
  • a screw bolt is inserted through two rods, each of which intersects at a node, and at its lower end, which protrudes from the rods, also serves to fix two clamping plates for the stiffening cables.
  • the cables used to stiffen the truss or network dome are therefore arranged below the truss rods.
  • the invention is therefore based on the object of simplifying the bracing of single or double curved single-layer truss or lattice works by means of ropes and also to improve the transmission of forces between the ropes and nodes of the truss.
  • each knot has a knot piece made of a flat hollow cylinder or approximated hollow cylinder or cup-shaped body, which is provided with two pairs of diametrically aligned holes, the axes of which cross the longitudinal axis of the knot piece,
  • a rope of the network is passed through each pair of holes in the node piece and can be fixed to the node piece by at least one locking screw arranged perpendicular to one of these holes in the node piece, and
  • the node pieces are massive cylindrical or ball-like bodies with corresponding through holes for the passage of the cables of the stiffening network.
  • Embodiments of the invention can be found in the subclaims.
  • a pair of rope feed-through holes in the axial direction of the node piece is offset from the other pair of rope feed-through holes by at least the diameter of a rope.
  • the cables can be passed straight through the knot at mutual intersection, which facilitates the bracing of cables, in particular with a larger diameter, for wide-span trusses, since the cables then do not rub at the intersection points.
  • a clamping piece is inserted between each locking screw and a rope, which has a concave clamping surface adapted to the rope cross-section, the clamping of the ropes in the node pieces is further improved, so that relatively large forces from the bracing network in the nodes of the truss can be transferred.
  • the embodiment of the invention according to claim 5 is also beneficial.
  • the geometry of the stiffening network can be varied according to the respective requirements.
  • Rope feed-through openings in a plane normal to the longitudinal axis of the node piece can be curved in pairs in the same or opposite sense. Furthermore, the rope leadthrough openings in the node piece can have the same radius of curvature.
  • the screws for fastening the bars of the framework to a node piece are each arranged at a level in the node piece that runs between the cables crossing in the node piece or intersects one of the two cables in the node piece, one obtains node pieces with particularly low overall height.
  • This in turn makes it possible, when using square tubes as truss bars, to keep their edge dimensions equal to the overall height of the node pieces, which also improves the overall appearance of the truss or latticework.
  • FIG. 1 shows a detail from a double-curved, single-layer framework, e.g. B. a truss dome;
  • FIG. 2 shows a plan view of a node of the half-timbered dome of FIG. 1 on an enlarged scale
  • FIG. 3 is a partial section along the line III-III in Fig. 2;
  • FIG. 4 shows a further top view of a knot similar to FIG. 2, but with an extended clamping piece between a locking screw and a rope;
  • Fig. 5 is a partial section along the line V-V in Fig. 4;
  • FIG. 6 is a view of the detail shown in FIG. 5 in the direction of arrow VI;
  • Figure 7 is a top view of the detail shown in Figure 5;
  • FIG. 9 shows a further top view of a knot similar to FIGS. 2 and 4, but with curved cable feedthrough openings in the knot piece;
  • Fig. 10 is a partial section along the line IX-IX in Fig. 9 on an enlarged scale and
  • FIG. 11 is a top view of the detail shown in FIG. 10;
  • FIG. 1 a section from a single-layer truss dome is shown as an exemplary embodiment in FIG. 1, which is composed of bars 10 and knot pieces 11, the bars 10 delimiting square meshes, each of which is in both diagonals by two sets of ropes 12 and 13 are stiffened.
  • the node pieces 11 all consist of essentially hollow cylinders of low overall height, each with four flattened areas 14, against which the rods 10 lie snugly with their ends.
  • cup-shaped bodies or the like could, for example, also be used as node pieces.
  • the rods 10 are, for example, made of square tubes and the overall height of the node pieces 11 preferably corresponds to the edge dimension of the rods 10. This enables the rods 10 to be connected flush with the two end faces of the node pieces 11, which facilitates covering of the truss dome, for example with glass elements.
  • the node pieces 11 and 11 'in the exemplary embodiments according to FIGS. 2 to 7 also contain two pairs of diametrically aligned bores 19 and 20, the axes ⁇ thus the longitudinal axis 21 of each node piece
  • the two bores 20, viewed in the axial direction of the node piece 11, 11 ', are arranged offset downwards by the diameter of one of the cables 12, 13 with respect to the two bores 19.
  • the cables 12 extend through the pairs of bores 19 in the knot pieces 11, 11 'and the run through the pairs of bores 20 in the knot pieces 11, 11' Ropes 13. Because of the arrangement of the bores 19 and 20 described above, the ropes 12, 13 intersect on the longitudinal axis 21 of the node pieces 11, each in a straight line, which is important when bracing the ropes 12 and 13 for stiffening the truss dome .
  • the screws 15 for fastening the rods 10 to the knot pieces 11 can run in a plane normal to the longitudinal axis 21 of the knot piece 11 and this plane preferably extends between the ropes 12, 13 which cross each other in the knot pieces 11, 11 '.
  • the ropes Due to the above arrangement, 12 and 13 run between the bars 10, specifically along the two diagonals of the square meshes of the truss dome delimited by four bars 10 each.
  • each node piece 11, 11 ' is provided with four threaded bores 21, the axes of which perpendicularly cross the axes of the bores 19 and 20.
  • Locking screws 22 are screwed into the threaded bores 21 and engage the cables 12 and 13 via interposed clamping pieces 23.
  • the clamping pieces 23 are provided with a concave clamping surface adapted to the cable cross section.
  • FIGS. 4 to 7 corresponds essentially to that of FIGS. 1 to 3, but in contrast to the latter, the clamping pieces 23 'switched on between the locking screws 22 and cables 12, 13 are of a length which corresponds to the wall thickness de Corresponds to the node piece 11 'outside of the flats 14. This creates a larger clamping area and even more reliable fixation of the ropes 12, 13 to the node pieces 11 '.
  • the bores 19 and 20 'in the node piece 11', through which the cables 12, 13 are passed, are correspondingly widened or milled upward to make room for the clamping pieces
  • the truss dome shown in each case as an exemplary embodiment in FIGS. 8, 8a also has a latticework made of bars 10 which are connected to one another by nodes 11 * '.
  • the network consisting of two groups of ropes 12 and 13 also serves to stiffen the single-layer truss dome.
  • FIGS. 8, 8a to 11 also essentially corresponds to that of FIGS. 4 to 7 and the same parts are therefore identified by the same reference numbers.
  • curved cable feed-through openings 19''and20'' are provided for the cables 12 and 13 in the knot piece 11''.
  • the cable feedthrough openings 19 ′′ and 20 ′′ are curved in pairs in a plane normal to the longitudinal axis of the node piece 11 ′′ in the opposite sense. However, they could also be curved in the same sense.
  • the cable feedthrough openings 19 ′′ and 20 ′′ all have, for example, the same half-radius of curvature.
  • the geometry of the stiffening network can the ropes 12 and 13 varied and the respective geometry of the truss dome from the rods 10 and node pieces 11 '* are adapted.
  • the shape of the square mesh of the truss dome delimited by the bars 10 can change considerably depending on their geometry. This requires the deflection of the cables 12 and 13 shown in FIGS. 9 and 11.
  • the clamping pieces 23 ′′ between the cables 12, 13 and the locking screws 22 are designed with the same radius of curvature as the cable through openings 19 ′′ and 20 ''. Their function otherwise corresponds to that of the clamping pieces 23 * in the execution orm according to FIGS. 4 to 7.
  • the node pieces 11 ′′ with their curved cable feedthrough openings 19 ′′ and 20 ′′ are preferably produced using the casting technique.
  • the ropes 12, 13 used for stiffening are preferably spiral ropes made of high-strength steel.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Reinforcement Elements For Buildings (AREA)
  • Rod-Shaped Construction Members (AREA)
  • Braiding, Manufacturing Of Bobbin-Net Or Lace, And Manufacturing Of Nets By Knotting (AREA)

Abstract

Afin de pouvoir stabiliser des treillis monocouches à courbure simple ou double, formé de barres et d'éléments nodaux, la manière classique consiste à les renforcer à l'aide d'un système réticulé de câbles mis en tension au préalable. Un système réticulé classique comprend à cet effet des paires de câbles qui doivent croiser les éléments nodaux de manière excentrique, du fait qu'ils doivent passer par une vis centrale de fixation sur les éléments nodaux du réseau réticulé correspondant. Les paires de câbles de ce type augmentent cependant le coût du réseau réticulé. En outre, le réseau réticulé de renforcement suspendu en dessous du treillis comporte des éléments nodaux qui sont relativement très saillants. Selon l'invention, il est prévu que les éléments nodaux (11) soient constitués de cylindres creux plats comportant chacun deux paires de trous (19, 20) diamétralement opposés dont les axes croisent, par conséquent, l'axe longitudinal (21) de chaque élément nodal (11). Des câbles (12, 13) du réseau réticulé de renforcement passent par chacune des paires de trous (19, 20). Les câbles (12, 13) peuvent être fixés à l'élément nodal (11) par l'intermédiaire de vis d'arrêt (22) vissées dans l'élément nodal (11). Les barres (10) du réseau réticulé sont vissées à l'élément nodal (11) entre les trous (19, 20) par lesquels passent les câbles (12, 13).
EP94909928A 1993-03-04 1994-03-04 Treillis monocouche a courbure simple ou double, forme de barres et d'elements nodaux Ceased EP0646205A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19934306746 DE4306746A1 (de) 1993-03-04 1993-03-04 Einfach oder doppeltgekrümmtes einlagiges Fachwerk aus Stäben und Knöten
DE4306746 1993-03-04
PCT/EP1994/000646 WO1994020698A1 (fr) 1993-03-04 1994-03-04 Treillis monocouche a courbure simple ou double, forme de barres et d'elements nodaux

Publications (1)

Publication Number Publication Date
EP0646205A1 true EP0646205A1 (fr) 1995-04-05

Family

ID=6481910

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94909928A Ceased EP0646205A1 (fr) 1993-03-04 1994-03-04 Treillis monocouche a courbure simple ou double, forme de barres et d'elements nodaux

Country Status (4)

Country Link
EP (1) EP0646205A1 (fr)
JP (1) JPH07506646A (fr)
DE (1) DE4306746A1 (fr)
WO (1) WO1994020698A1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19641147C2 (de) * 1996-10-05 2002-09-19 Seele Gmbh Stehendes, bogenförmiges Glasdach
DE10112313B4 (de) * 2000-03-17 2011-11-24 Simon Bauer Netzartiges Raumtragwerk
DE102004023727A1 (de) * 2004-05-11 2005-12-22 Mero-Tsk International Gmbh & Co.Kg Flächentragwerk
CN101881050B (zh) * 2010-06-11 2011-07-27 北京工业大学 一种索撑节点连接装置
CN103898992B (zh) * 2014-04-13 2017-02-08 山东建筑大学 索支撑五、六边形网格单层网壳的节点及安装施工方法
IT201700069255A1 (it) * 2017-06-21 2018-12-21 Univ Pisa Nodo strutturale per il collegamento di elementi di involucro edilizio, e struttura reticolare comprendente detto nodo

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1238308A (fr) * 1959-06-27 1960-08-12 Organes d'assemblage pour charpente, en particulier pour l'industrie du bâtiment
US3333375A (en) * 1964-10-08 1967-08-01 Western Electric Co Frame for supporting a dome shaped building
US3898777A (en) * 1970-05-08 1975-08-12 Tancho D Georgiev Dome and vault construction
US4183190A (en) * 1978-05-01 1980-01-15 Roper Corporation Space frame construction system
GB8523741D0 (en) * 1985-09-26 1985-10-30 Higson M T Structural unit
DE3715228A1 (de) * 1987-05-07 1988-11-17 Schlaich Joerg Verfahren zur herstellung eines gekruemmten, insbesondere doppelt gekruemmten durch staebe gebildeten fachwerks mit dreieckigen maschen
US5230196A (en) * 1990-09-05 1993-07-27 World Shelters, Inc. Polyhedron building system
DE4224663C2 (de) * 1992-07-25 1996-02-15 Mero Raumstruktur Gmbh & Co Knotenstück für zweifach gekrümmte Gittertragkonstruktionen, insbesondere in einlagiger Ausführung

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9420698A1 *

Also Published As

Publication number Publication date
DE4306746A1 (de) 1994-09-08
WO1994020698A1 (fr) 1994-09-15
JPH07506646A (ja) 1995-07-20

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