EP0129347B1 - Procédé pour joindre bout à bout des poutres en bois dans un bâtiment et plaque d'assemblage pour la réalisation du procédé - Google Patents

Procédé pour joindre bout à bout des poutres en bois dans un bâtiment et plaque d'assemblage pour la réalisation du procédé Download PDF

Info

Publication number
EP0129347B1
EP0129347B1 EP19840303450 EP84303450A EP0129347B1 EP 0129347 B1 EP0129347 B1 EP 0129347B1 EP 19840303450 EP19840303450 EP 19840303450 EP 84303450 A EP84303450 A EP 84303450A EP 0129347 B1 EP0129347 B1 EP 0129347B1
Authority
EP
European Patent Office
Prior art keywords
timbers
splice
timber
splice plate
flanges
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.)
Expired
Application number
EP19840303450
Other languages
German (de)
English (en)
Other versions
EP0129347A2 (fr
EP0129347A3 (en
Inventor
Peter Mark Andrews
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.)
PRESS-BAT HOLDINGS Ltd
Original Assignee
PRESS-BAT HOLDINGS Ltd
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 PRESS-BAT HOLDINGS Ltd filed Critical PRESS-BAT HOLDINGS Ltd
Publication of EP0129347A2 publication Critical patent/EP0129347A2/fr
Publication of EP0129347A3 publication Critical patent/EP0129347A3/en
Application granted granted Critical
Publication of EP0129347B1 publication Critical patent/EP0129347B1/fr
Expired legal-status Critical Current

Links

Images

Classifications

    • 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
    • E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
    • E04B1/26—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of wood
    • E04B1/2604—Connections specially adapted therefor
    • E04B1/2612—Joist hangers

Definitions

  • This invention relates to a method of butt jointing timbers and to a method of renovating timbers in a building, and to a splice plate for performing the method.
  • connections are relatively localised and are intended for use in connecting sound timber joists at points of contraflexure within a building, where the total bending moment or force on the joint tends to zero.
  • a method of renovating timbers in a building comprising:-
  • step of cutting a slot into one or more surfaces of the timbers to generate internal surfaces of the timbers against which one or more of said flanges may abut.
  • the timbers may be slotted on a central longitudinal plane.
  • the fasteners preferably comprise nails.
  • the invention also provides a splice plate for securing together timbers in performance of a method set out above, comprising a single sheet metal member having two mutually perpendicular flanges one flange being of a narrow width, less than or equal to one half the thickness of the timbers to be joined, the other flange being of a greater width, less than or equal to one half the width of the timbers, the length of the plate being substantially greater than the width of the timbers, at least the wider flange having a plurality of fastener receiving apertures at each end portion, and stiffening ribs or depressions disposed in a central portion devoid of apertures, whereby abutting end poritons of the timbers to be joined together can be substantially surrounded by a set of four such plates and rigidly secured together by fastening through said pluralities of apertures.
  • the invention also provides a jointing kit comprising four splice plates as set out above.
  • the invention provides a splice plate for securing together timbers comprising a sheet metal member of channel section having two parallel flanges connected by a web of a narrow width equal to the thickness of timbers to be joined, the two parallel flanges being of a greater width, less than or equal to one half the width of the timbers and the length of the plate being substantially greater than the width of the timber, at least the parallel flanges having a plurality of fastener receiving apertures at each end portion, and stiffening ribs or depressions disposed in a central portion devoid of apertures, whereby abutting end portions of the timbers to be joined together can be substantially surrounded by a pair of such plates and rigidly secured together by fastening through said pluralities of apertures.
  • This aspect of the invention further provides a jointing kit comprising two splice plates as set out in the preceding paragraph.
  • a splice plate 10 is made of galvanised steel sheet, stainless steel sheet or other strong and corrosion resistant sheet metal. It comprises a first flange 11 and a narrower second flange 12, meeting at right angles at a junction line 13.
  • each flange is provided with a plurality of apertures 14, to receive nails, which will be used to secure together timbers for renovation. Careful examination of the pattern of apertures will shown that these are arranged so that no three adjacent apertures are aligned. The plate will be subjected to tensile stress in use, and alignment of the apertures could lead to failure by tearing along a line of apertures. The offset pattern of holes helps to prevent such failure. It may also reduce the risk of splitting timbers secured using the splice plate.
  • the central portion 15 mf the splice plate is devoid of apertures. Building Regulations require that timbers should not be nailed within a certain distance of their ends, to reduce risk of splitting, which could make the nails insecure. The central portion 15 will overlie the ends of two abutting timbers in use.
  • stiffening formations in the form of ribs 16 or depressions in the material of the plate, these ribs 16 being made in both first and second flanges 11 and 12.
  • the first difference in the embodiment shown in Figures 7 and 8 is that the narrow second flange 12 does not have apertures similar to the apertures 14 shown in Figure 2 and does not have a central stiffening rib 16. It has been found in practice that these can be omitted without detriment to the functioning of the splice plate to be described below and their omission leads to simpler manufacturing.
  • a second difference is in the shape of the stiffening formations indicated at 26 and 27 in the drawings.
  • a pair of straight stiffening ribs 26, 27 are provided, again lying in the central region of the splice plate which is devoid of apertures.
  • the ribs 26, 27 are located adjacent the junciton line 13 between the first and second flanges 11 and 12. This provides increased stiffening at the point where it is most needed. This will be referred to again in the description of the use of the splice plate below.
  • the ribs 26 and 27 are off-set on opposite sides of the centre line of the splice plate. The reason for this is to avoid the ribs obstructing a hammer which is used to nail fasteners in the group of apertures indicated at 28 which surround the stiffening formation.
  • the stiffening formations are intended to stiffen the splice plate, to make it more resistant to the bending moments and shear forces which will be exerted on it in use.
  • the method of use of the splice plate needs to be considered, in relation to the chosen example of renovation of rotten timber joists adjacent a wall.
  • Figure 9 of the drawings the splice plate of Figures 7 and 8 is shwon in use.
  • Figure 4 shows a section through the plate of Figures 1 to 3 in use. Where a joist has rotted adjacent a wall, the deteriorated portion is cut out. A substitute timber 29 of the same cross-section as the original joist 30 is cut to the same length as the deteriorated original portion which has been removed. The substitute timber is then placed in the same position as that removed, using the same joist hanger 31 if a suitable one is in use or using a new hanger in the original position. As a further alternative, the joist can be built directly into the masonry (not shown).
  • the substitute timber 29 occupies exactly the same position as the deteriorated portion which it replaces and abuts the remaining portion 30 of the original joist, where it is secured by means of the splice plates 10 described.
  • Figure 9 these are in the form shown in Figures 7 and 8 but they could be as shown in Figures 1 to 3.
  • the substitute timber may be swung laterally or downwardly into a position where it is brought into abutment with one or more splice plates 10 secured to the remaining original timber 30, which serve to support it until the other splice plates 10 are added and the assembly is nailed firmly together.
  • the compressive strength of the joint between the joist portions relies mainly on the compressive strength of the joist timbers themselves in their abutting position.
  • the tensile strength is derived from that of the metal splice plates 10.
  • the stiffening ribs are positioned close to the junction 13 of the flanges 11 and 12 to minimise any tendency for the plate to buckle under this loading.
  • Figure 10 illustrates forms of joint which can be secured using the splice plate.
  • the timbers are either abutted at upright faces or at mating oblique faces.
  • the lowest of the three illustrations showing a pair of timbers which merely make contact at the upper faces is acceptable provided that the gap between the lower faces of the timbers is restricted to a fairly small size, for example a maximum of 20 mm for a joist of 98 mm nominal depth.
  • Joints between joists which make contact only at their lower face are not preferred since the performance of the splice joint is reduced. This is because of the reduction in the compressive strength of the joint, which as previously stated relies mainly on the strength of the joist timbers themselves in their abutting position at the upper face of the joint.
  • splice plates shown in Figures 1 to 4 and in Figures 7 and 8 may have particular usefulness in assisting correct positioning of the substitute timber during renovation, other forms of splice plate may be used.
  • Figure 5 shows a modified splice plate 17, similar to that of Figures 1 to 4 except that it has a channel-section, effectively combining two of the splice plates 10.
  • This form of splice plate 17 is of course limited to use with a particular width of timber, since the base 18 must be of the same width as the timber, so that the side flanges 19,20 of the channel abut the side faces of the timber 25.
  • the extra metal width in the horizontal planes of the top and bottom of the joists gives this version of splice plate some extra strength to resist heavy bending moments.
  • the timbers are slotted at 21 on a central upright plane, and a T-shaped splice plate 22 is used, (or two of the angle shaped splice plates 10 are used back-to-back) with the upright web 23 of the T inserted into the slot.
  • the web 23 need not be provided with holes as their positions would not be visible from the face of the timbers. Long nails are driven through the timber, penetrating the web 23 within.
  • This version of splice plate provides extra strength on the central longitudinal axis of the timbers at their junction, without obscuring their side faces and without any limitation to the width of timbers which can be secured together.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Joining Of Building Structures In Genera (AREA)

Claims (9)

1. Procédé de rénovation de pièces de bois dans un bâtiment suivant lequel:
on coupe et dégage une partie détériorée d'une pièce de bois primitive;
on prend une pièce de bois de remplacement de même longueur;
on place la pièce de bois de remplacement dans l'emplacement qu'occupait précédemment la partie détériorée;
on prend un ensemble de plusieurs plaques métalliques d'éclissage;
et on assujettit chaque plaque d'éclissage à la fois à la pièce de boris de remplacement et à la partie restante de la pièce de bois primitive, les extrémités de ladite pièce de bois de remplacement et de ladite partie restante étant en contact l'une avec l'autre;
chaque plaque d'éclissage comportant au moins deux ailes à angle droit l'une par rapport à l'autre, chaque aile venant appuyer contre une surface respective de ladite pièce de bois de remplacement et de ladite partie restante et la plaque d'éclissage étant assujettie par des éléments de fixation traversant au moins l'une desdites ailes et pénétrant directement dans chacune des pièces de bois.
2. Procédé d'assemblage bout à bout de deux pièces de bois dans un bâtiment suivant lequel:
on prend quatre plaques d'éclissage, chaque plaque comportant au moins deux ailes à angle droit l'une par rapport à l'autre;
et on assujettit chaque plaque d'éclissage aux deux pièces de bois avec les extrémités de ces dernières positionées en contact l'une avec l'autre; chaque aile venant appuyer contre une surface respective de chacune desdites pièces de bois: et les plaques d'éclissage étant assujetties par des éléments de fixation tranversant au moins l'une desdites ailes et pénétrant directement dans chacune des pièces de bois.
3. Procédé selon la revendication 1 ou la revendication 2, suivant lequel, en outre, on taille une rainure dans une ou plusieurs surfaces des pièces de bois pour ménager dans les pièces de bois des surfaces internes contre lesquelles l'une ou plusieurs des ailes peuvent prendre appui.
4. Procédé selon la revendications 3 suivant lequel les pièces de bois sont rainurées suivant un plan longitudinal central.
5. Plaque d'éclissage destinée à l'assujettissement de pièces de bois l'une à l'autre lors de la mise en oeuvre des procédés selon l'une quelconque des revendications 1 à 4, comprenant une pièce unique en tôle (10) présentant deux ailes (11, 12) à angle droit l'une par rapport à l'autre, l'une d'elles (12) ayant une faible largeur, inférieure ou égale à la moitié l'épaisseur des pièces de bois (25; 29, 30) devant être raccordées, l'autre (11) ayant une plus grande largeur, inférieure ou égale à la moitié de la largeur des pièces de bois (25; 29, 30), la longueur de la plaque (10) étant sensiblement plus grande que la largeur des pièces de bois, au moins l'aile (11) de plus grande largeur présentant un ensemble de plusieurs trous (14) dans chacune de ses parties terminales pour la réception d'élément de fixation, et des nervures ou dépressions de renforcement (26, 27) disposées dans une partie centrale (15) dépourvue de trous, ce ci de façon que les parties terminales aboutantes des pièces de bois (29, 30) devant être raccordées l'une à l'autre puissent être sensiblement entourées par un ensemble de quatre telles plaques (10) et être assujetties l'une à l'autre de façon rigide par fixation à travers lesdits ensembles de trous (14).
6. Kit de raccordement comprenant quatre plaques d'éclissage selon la revendication 5.
7. Plaque d'éclissage destinée à l'assujettissement de pièces de bois l'une à l'autre lors de la mise en oeuvre d'une procédé selon la revendication 1, comprenant une piéce en tôle (18) profilée en U à deux ailes parallèles (19, 20) reliées par une âme (18) de faible largeur égale à l'épaisseur des pièces de bois (25; 29, 30) devant être raccordées, les deux ailes parallèles (19, 20) étant de plus grande largeur, inférieure ou égale à la moitié de la largeur des pièces de bois (25; 29, 30), et la longueur de la plaque étant sensiblement supérieure à la largeur des pièces de bois, au moins les ailes parallèles (19, 20) présentant un ensemble de plusieurs trous (14) dans chacune de ses parties terminales pour la réception d'éléments de fixation, et des nervures ou dépressions de renforcement (26, 27) disposées dans une partie centrale (15) dépourvue de trous, ceci de façon que les parties terminales aboutantes des pièces de bois devant être raccordées l'une à l'autre puissent être sensiblement entourées par un ensemble de deux telles plaques et être assujetties l'une à l'autre de façon rigide à travers lesdits ensembles de trous.
8. Kit de raccordement comprenant deux plaques d'éclissage selon la revendication 8.
EP19840303450 1983-06-18 1984-05-22 Procédé pour joindre bout à bout des poutres en bois dans un bâtiment et plaque d'assemblage pour la réalisation du procédé Expired EP0129347B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB838316644A GB8316644D0 (en) 1983-06-18 1983-06-18 Butt jointing timbers in building
GB8316644 1983-06-18

Publications (3)

Publication Number Publication Date
EP0129347A2 EP0129347A2 (fr) 1984-12-27
EP0129347A3 EP0129347A3 (en) 1985-05-22
EP0129347B1 true EP0129347B1 (fr) 1987-04-08

Family

ID=10544456

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19840303450 Expired EP0129347B1 (fr) 1983-06-18 1984-05-22 Procédé pour joindre bout à bout des poutres en bois dans un bâtiment et plaque d'assemblage pour la réalisation du procédé

Country Status (4)

Country Link
EP (1) EP0129347B1 (fr)
DE (1) DE3463068D1 (fr)
GB (2) GB8316644D0 (fr)
IE (1) IE55178B1 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8332533D0 (en) * 1983-12-06 1984-01-11 Dinardo & Partners Restoration and strengthening of timber components
GB2233382A (en) * 1989-06-16 1991-01-09 Donald Alexander Payne Repairing or supporting a structural member
DE29921220U1 (de) * 1999-12-02 2000-03-30 Hirz E L Gmbh & Co Kg Dachlattenverlängerung
GB2369852A (en) * 2000-11-18 2002-06-12 Thomas Kelly Loft joist
GB0624066D0 (en) * 2006-12-01 2007-01-10 Reardon Micheal P I beam or timber joist, end support or collar or sleeve or shoe or clip or bracket
ES2505248B1 (es) * 2013-04-08 2015-03-31 Carlos González Bravo Pieza para refuerzo de vigas y viguetas de forjados, pares de cubierta, pies derechos y otros elementos estructurales de madera
JP6532144B2 (ja) * 2015-03-24 2019-06-19 住友林業株式会社 柱の接合構造

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB107080A (fr) *
GB185694A (en) * 1921-12-30 1922-09-14 Baden Robert Rowell Improved joint for floor joists and like weight supporting members
GB1232592A (fr) * 1967-05-15 1971-05-19
GB1179267A (en) * 1967-06-14 1970-01-28 Internat Entpr Inc Roof Framing System with Adjustable Brackets.
GB1417190A (en) * 1971-12-21 1975-12-10 Turner A R Wall framing
GB1414326A (en) * 1972-12-21 1975-11-19 Wilson J M Building constructions
GB2043758A (en) * 1979-03-05 1980-10-08 Hydro Betong Ab Space framework
GB2047320B (en) * 1979-03-22 1983-02-02 Hydro Air International Ltd Joist hangers
IE50239B1 (en) * 1979-09-28 1986-03-05 Press Bat Holdings Ltd A joist support for use in building and a building structure including such a support
GB2070184B (en) * 1980-02-23 1983-09-07 Press Bat Holdings Ltd Cantiliver bracket for joining joists end to end
IE811718L (en) * 1981-07-29 1983-01-29 Vivion James Glynn Building element for fixing structural member
DE3133014C2 (de) * 1981-08-20 1985-03-21 Lömpel-Bautenschutz GmbH + Co KG, 8725 Arnstein Verfahren zur Restaurierung von Holzbalken
GB2126307A (en) * 1982-07-16 1984-03-21 Catnic Components Ltd A purlin or joist connector

Also Published As

Publication number Publication date
GB2141460B (en) 1986-10-08
GB8413077D0 (en) 1984-06-27
IE55178B1 (en) 1990-06-20
GB2141460A (en) 1984-12-19
DE3463068D1 (en) 1987-05-14
IE841300L (en) 1984-12-18
EP0129347A2 (fr) 1984-12-27
GB8316644D0 (en) 1983-07-20
EP0129347A3 (en) 1985-05-22

Similar Documents

Publication Publication Date Title
US4738071A (en) Manufacture of wooden beams
US6688066B1 (en) Construction technique and structure resulting therefrom
US4209265A (en) Connector system for wood structures
US6640516B1 (en) Sheathing tie down
US6510666B1 (en) Sheathing tie down
JPH05295799A (ja) 木造建築用軸組構造及び軸組具
JP2008133719A (ja) 構造用パネルに周囲縁取りを備えた隔壁
US5647186A (en) Steel framing system for walls
US4549381A (en) Composite joist system
US4637194A (en) Wood beam assembly
US4794746A (en) Joist bridging
EP0129347B1 (fr) Procédé pour joindre bout à bout des poutres en bois dans un bâtiment et plaque d'assemblage pour la réalisation du procédé
US6343453B1 (en) Composite wooden beam and method for producing said beam
US4442649A (en) Fabricated beam
EP0026397A2 (fr) Support pour poutre utilisé dans le bâtiment et structure de bâtiment comprenant un tel support
JP3017947B2 (ja) 建物の壁構築方法及びその構造
EP0032417A1 (fr) Dispositif de construction, en particulier pour supporter un coffrage
AU710215B2 (en) Steel framing system for walls
CA1234471A (fr) Fabrication de poutres en bois
JP7377155B2 (ja) Ｉ型ジョイスト部材連結具、ｉ型ジョイスト部材連結具を用いたｉ型ジョイスト部材の連結方法およびｉ型ジョイスト部材連結具を用いた木造建物
AU579827B2 (en) Joining plate for butt-joined timber lengths
JPS6023539A (ja) 屋根パネルの固定構造
JPH06117096A (ja) 縁用桟木とこの縁用桟木を有する型枠パネルとこの型枠パネルを用いたコンクリート型枠の組立方法
JP3178939B2 (ja) 建物ユニットの仮補強構造
JP2505629Y2 (ja) 壁パネルの接合構造

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): BE DE FR GB NL

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Designated state(s): BE DE FR GB NL

17P Request for examination filed

Effective date: 19850504

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): BE DE FR NL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Effective date: 19870408

REF Corresponds to:

Ref document number: 3463068

Country of ref document: DE

Date of ref document: 19870514

ET Fr: translation filed
NLV1 Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act
BERE Be: lapsed

Owner name: PRESS-BAT HOLDINGS LTD

Effective date: 19870531

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Effective date: 19880202

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19880226

26N No opposition filed
REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Effective date: 19890531