WO1999061718A1 - Beam without a heat bridge - Google Patents
Beam without a heat bridge Download PDFInfo
- Publication number
- WO1999061718A1 WO1999061718A1 PCT/DE1999/001546 DE9901546W WO9961718A1 WO 1999061718 A1 WO1999061718 A1 WO 1999061718A1 DE 9901546 W DE9901546 W DE 9901546W WO 9961718 A1 WO9961718 A1 WO 9961718A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- belts
- carrier
- tension
- belt
- dam
- Prior art date
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
- E04C3/29—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces built-up from parts of different material, i.e. composite structures
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B5/00—Floors; Floor construction with regard to insulation; Connections specially adapted therefor
- E04B5/16—Load-carrying floor structures wholly or partly cast or similarly formed in situ
- E04B5/17—Floor structures partly formed in situ
- E04B5/23—Floor structures partly formed in situ with stiffening ribs or other beam-like formations wholly or partly prefabricated
- E04B2005/232—Floor structures partly formed in situ with stiffening ribs or other beam-like formations wholly or partly prefabricated with special provisions for connecting wooden stiffening ribs or other wooden beam-like formations to the concrete slab
- E04B2005/237—Separate connecting elements
Definitions
- the invention relates to a heat-free, structurally spread carrier with stiffening insulating material between the two tension / compression belts for self-supporting insulating material constructions or for constructions in combination with infilling insulating materials for roofs and walls of houses and processes for its production
- Sandwich panels have been known for a long time.
- the large panels in composite construction which are clad with steel sheet or wood-based materials, meet high dam requirements and can also be used with acceptable profile widths and thickness, thanks to the low local rigidity of the top layer and there is no universal adaptation to the user (statics, window openings, cover layers)
- These elements are only available as flat components, but not as narrow supports.
- Spread supports of general design that are not bound to insulation material have a (more or less) solid web between the upper and lower chord, that supports both belts to each other and forms a warm bridge. The web is either full-walled or designed as a homogeneous rod tension.
- the double-TT supports with wooden belts and wood-based web are sufficiently load-bearing, but have the solid one "Bridge” warm bridges are difficult to make windproof in the dam structure and cannot be produced as sheets.
- Metal lattice girders have a dense and "steep” framework with a considerable thermal bridging effect and are prone to corrosion
- Sandwich carriers with a large distance between the local tension and pressure belts and sufficient spatial reinforcement with insulation materials allow minimal use of materials with a high load-bearing capacity or wide spans
- the outer surfaces of the girders have to absorb considerable localized forces.
- dam materials as stiffening and transmission elements for tensile, compressive and shear stresses between the thermal bridging-free tension / compression belts, all local forces must be distributed evenly over a large area Due to a sufficiently large bending stability of the single belt and due to a large shear area between the insulation material and the belt, the loads are evenly transmitted over the entire length.
- the particular problem of the construction without thermal bridges is the low shear stability of the insulation material integrated between the belts and its long-term stability Significantly to crawl and thus to strong bends
- the outer straps of the carrier are particularly problematic.
- the invention has for its object to provide a separately manageable or component-integrated narrow sandwich carrier of the type mentioned, which is free of thermal bridges, has sufficient shear stability, enables direct, statically stable connections and can also be easily inserted into an insulation bond.
- FIG. 1 of the drawing contains various longitudinal sections of beams that are free of thermal bridges.
- the number 1 designates the belts, the number 2 the stiffening insulation and the number 3 the specially inserted components to increase the shear stress.
- a steel wire (3) with a diameter of 6 mm and a crossed direction of action and a turning point in the middle of the lower flange is fastened in a form-fitting manner to the wooden upper flange with a welding angle plate.
- the lower flange made of sheet steel is tightly connected to the steel wire at three points, the two outer form-fitting brackets being movable for pretensioning the steel wire.
- the steel wire takes on significant shear stresses in the system between the two rigid belts (1).
- the thin steel wire runs inside the insulation material and is so flat that the heat conduction between the belts can be neglected.
- a shear stress reinforcement as steel wire (3) is realized directly on the outer sides of the two wooden belts (1), which was guided in the lower flange over two tension member deflections (4).
- the tension element deflections consist of steel sleeves that are inserted into through holes in the lower flange.
- the wire is folded and also inserted into inserted sleeves in the top chord.
- the steel wire is also non-positively locked in the top chord by an epoxy resin potting compound. Subsequent foaming with the infilling insulation materials in the joint using local foam pre-tensioned the support and permanently connected it.
- glass fiber mesh fabric strips (3) with an orthogonal inner structure and a diagonal structure are glued between the belts.
- the structure run is a mirror image of the center of the beam.
- the thermal bridge effect of the thin mesh fabric enclosed by the insulating material cannot be measured.
- the lattice fabric strips are bonded in a groove in the wooden straps using PU potting compound.
- a steel strand rope (3) is arranged crossed between the belts and received on deflection members (5). At one edge end of the strand, the strand is tightened and pretensioned between the belts. Small pressure stamps ensure the belt spacing. Then the space between the belts is filled in a device or between infill side insulation materials with high-density foam.
- the figure le) shows disk-like shear stress reinforcements in the form of thin wood-based panels (3). The short plate sections are primarily glued in the support area of the carrier between the belts or mechanically connected to the belts.
- loop-like corrugated steel bcton wires (3) are positively inserted into grooves in the wooden belts and anchored therein by means of an epoxy potting compound. In order not to exceed the internal load-bearing capacity of the wood, load distribution elements in the form of through sleeves (6) inserted. Then this support assembly is joined with the stiffening and infilling insulation materials.
- Figure 1 g shows a combination of shear strength increases in a long arcuate support.
- FIG. 2 show different cross sections of construction variants of girders free of thermal bridges.
- the straps (1) consist of wood and sheet steel and the
- Construction panels can be attached to the single-layer connection surface according to the drywall technology, while two layers of sheet metal enable statically stable connections to the supporting structure.
- the lower flange consists of trough-shaped steel sheet with a bevelled outer surface and wedge-shaped slide-in guides on the sides for airtight joining of the ausfache ⁇ den
- the looped glass mesh is in a groove of the
- the stiffening insulation (2) consists of high-density EPS fittings
- 3 a) is expanded metal; 3 c) is a wood-reinforced concrete composite beam.
- FIG. 4 shows wall-integrated beams with different belt material
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Chemical & Material Sciences (AREA)
- Composite Materials (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Building Environments (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19980954T DE19980954D2 (en) | 1998-05-26 | 1999-05-26 | Beam without thermal bridges |
Applications Claiming Priority (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19823267 | 1998-05-26 | ||
DE19823267.5 | 1998-05-26 | ||
DE19850715 | 1998-11-03 | ||
DE19850715.1 | 1998-11-03 | ||
DE19859938.2 | 1998-12-24 | ||
DE19859938 | 1998-12-24 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO1999061718A1 true WO1999061718A1 (en) | 1999-12-02 |
WO1999061718A9 WO1999061718A9 (en) | 2000-04-13 |
Family
ID=27218398
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE1999/001546 WO1999061718A1 (en) | 1998-05-26 | 1999-05-26 | Beam without a heat bridge |
Country Status (3)
Country | Link |
---|---|
DE (1) | DE19980954D2 (en) |
PL (1) | PL344531A1 (en) |
WO (1) | WO1999061718A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL2011601C2 (en) * | 2013-10-11 | 2015-04-14 | Willem Hero Olthof | Reinforced insulated framing member. |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1052891A (en) * | ||||
DE1434058A1 (en) * | 1961-08-17 | 1969-10-23 | Krupp Gmbh | Load-bearing bodies |
US4308700A (en) * | 1979-10-10 | 1982-01-05 | Romig Jr Byron A | Fiberglass structural member of layer construction and method of making same |
WO1985003968A1 (en) * | 1982-09-06 | 1985-09-12 | Sune Persson | Beam |
FR2715680A1 (en) * | 1994-02-01 | 1995-08-04 | Valencot Francois | Lightweight reinforced beam |
WO1995030808A1 (en) * | 1994-05-05 | 1995-11-16 | William John Bernard Ollis | Building elements |
DE4343465C2 (en) | 1993-12-20 | 1996-04-25 | Burkhart Schurig | Reinforced lightweight construction system |
-
1999
- 1999-05-26 DE DE19980954T patent/DE19980954D2/en not_active Expired - Fee Related
- 1999-05-26 PL PL34453199A patent/PL344531A1/en not_active Application Discontinuation
- 1999-05-26 WO PCT/DE1999/001546 patent/WO1999061718A1/en active Application Filing
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1052891A (en) * | ||||
DE1434058A1 (en) * | 1961-08-17 | 1969-10-23 | Krupp Gmbh | Load-bearing bodies |
US4308700A (en) * | 1979-10-10 | 1982-01-05 | Romig Jr Byron A | Fiberglass structural member of layer construction and method of making same |
WO1985003968A1 (en) * | 1982-09-06 | 1985-09-12 | Sune Persson | Beam |
DE4343465C2 (en) | 1993-12-20 | 1996-04-25 | Burkhart Schurig | Reinforced lightweight construction system |
FR2715680A1 (en) * | 1994-02-01 | 1995-08-04 | Valencot Francois | Lightweight reinforced beam |
WO1995030808A1 (en) * | 1994-05-05 | 1995-11-16 | William John Bernard Ollis | Building elements |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL2011601C2 (en) * | 2013-10-11 | 2015-04-14 | Willem Hero Olthof | Reinforced insulated framing member. |
EP2860324A1 (en) | 2013-10-11 | 2015-04-15 | Willem Hero Olthof | Reinforced insulated framing member |
Also Published As
Publication number | Publication date |
---|---|
WO1999061718A9 (en) | 2000-04-13 |
PL344531A1 (en) | 2001-11-05 |
DE19980954D2 (en) | 2001-04-26 |
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