WO2016192803A1

WO2016192803A1 - Façade framework

Info

Publication number: WO2016192803A1
Application number: PCT/EP2015/062505
Authority: WO
Inventors: Giacomo SCIMONELLI
Original assignee: Scimonelli Giacomo
Priority date: 2015-06-04
Filing date: 2015-06-04
Publication date: 2016-12-08

Abstract

Modular checkerboard frame used in the field of construction. Stiffening system for external facades, anchored to the carrying skeleton structure of the building; made with adequate vertical and horizontal elements drowned in the laying mortar of the external facade. The system is particularly employed for static aims, and ensures exceptional performances for what concerning the thermal insulation, shrinking considerably thermal bridges. The modularity of the system allow us to satisfy every practical requirement and design need.

Description

FACADE FRAMEWORK

TECHNICAL FIELD: Building and construction

BEST MODE FOR CARRYING OUT THE INVENTION: well anchored the structure to the building INDUSTRIAL APPLICABILITY: Stiffening system of exposed fagades, anchored to the carrying skeleton structure.

Modular mesh employed in the field of civil building, made with different materials, according to the use and the dimension of the structure itself.

the system is a stiffening framework for external facades, that proved to be very useful for solving issues concerning the seismicity and the energy saving of the building.

The stiffening modular checkerboard frame for external facades is also available for ventilated facades. A special element, that has to be inserted in the modular mesh, allows us to sustain the cladding slabs.

The technology presented manages to combine rigidity, durability and energy performance.

In the last decades the need of solving issues concerning thermal bridges, has literally moved the outer cladding outside the framework of reinforced concrete.

Therefore the external face is no longer sustained by the carrying skeleton structure of the building, but instead it is the outer wall that sustains it, with anchor elements. The outer wall has to be sufficiently strong to sustain the forces that act on the masonry. In the case of seismic events, twisting, tilting and detachment of the external facade can happen.

The tilting of the facades is, in fact, one of the most dangerous aftermaths of an earthquake in Italy. Indeed, while the actions that take place in the same plane of the masonry cause damages edgeways (typical X-shaped cracks), and are contrasted only by the resistance of the material and shape of the wall, the actions perpendicular to this plane encounter less resistance, especially in the case of slightly anchored and/or bound masonry. The aftermaths of a collapse of the second type are generally more dangerous than the former one, because they cause the loss of bearing capacity. The break mechanism can be summed in: disintegration of the brickwork and vertical sagging of the wall, which can be considered as a monolithic element between two supports at the inferior and superior end (floor).

Thanks to the construction of the modular grid, made of different uprights and transoms, the external facade is anchored, (and this is the real novelty), directly to the carrying skeleton structure (roofs, beams and pillars) through support plates. The stiffening structure for external facades is inserted inside the outer cladding, drowning it with concrete during the laying of the facade. The uprights are inserted between the elements that form the outer face, properly shaped.

The transoms are drowned in the horizontal spacing that is created between one element and the other, avoiding excessive fixing distances of the coating.

In correspondence of roofs and/or beams, plates with pins are applied to the structure, in order to equally distribute the weight of the load-bearing structure. Pins allow us to adapt the structure to every design need (different thickness of insulation materials).

The use of pin-elements, characterized by a plate with the insertion of screws (properly dimensioned for the weight and/or pull-resistance), enabling us to adapt the structure to every design need (different thickness of insulation materials).

The use of T-shaped elements ensures the perfect stability of the mesh. The placement of the crossbeam in the lintels of the openings solves the issue of stability of the element.

With the present anchor-system of the external face, the designer has to take into account, while calling the structure, the different breaking mechanism, especially tilting and detachment of the masonry. The fastening of the carrying skeleton structure is a critic point because of the problems concerning the thermal bridges. If the structure is built in metal, thermal bridges can be easily eliminated using special dowels with insulating cones that can be found in every specialized retailer, in order to stop the continuous thermic flow through the metallic plate. The plate itself can also be coated by a special insulating membrane (different solutions for it are commercially available). Another solution to avoid thermal bridges can be the realization of the stiffening mesh with insulating material.

The modularity of the system, the properly dimensioned division according to the typology of the building; the simple, fast and easy-to-understand sliding system, make the System of stiffening of exposed fagade the most versatile for every occasions, satisfying every design need both for new buildings and renovations.

Installation Instruction for the stiffening system

step 1

We have first to examine the elevations of the building under consideration.

We design the stiffening mesh, properly dimensioned for the building (see table 1 - picture 1 ) step 2

We need to make marks of the holes for fixing the structure in the building site (see table 2 - picture 2)

It is necessary to find the best place where to lay the anchor plate of the uprights of the mesh, following the plan previously made. The base has to be inserted inside the outer cladding. Mind to check the measures in order to make a correct laying of the base, (see table 2 - picture 3) step 3

Drilling with an electric drilling of the support structure, for the realization of the holes where you will insert the "fisher" of the anchor base, (see table 3 - picture 4)

step 4

Laying of the base-plate (piece 1 - table 12) and bolting of the element to the bearing surface (table 3 - picture 5 / table 4- picture 6)

step 5

Insertion of the vertical "upright" framework (piece 2- picture 7) in the base anchored to the structure of the building (table 5 - picture 7). The upright has to go over the beam and/or the roof above (table 6 - picture 8). The vertical framework inserted in the base, has appropriate size in order to enable the check of the verticality of the structure we are mounting. Check the verticality of the element with a level and the fastening to the structure (roof and/or beam).

step 6

insertion of the T-shaped element in the uprights (piece 3/4 - table 13), for the junction of the "cross" horizontal elements and the fastening (table 7 - picture 9/10).

In the case of ventilated facades, we can use the special support element (table 20 - piece 14/picture 18)

step 7

insertion of the "cross" horizontal framework (piece 5 - table 14; table 8 - figure 1 1 ).

step 8

installation of the external facade. The bricks are properly cut in order to let the framework pass into. Easy to use and to install, (table 8 - picture 12)

step 9

The "cross" beam is let slide until, reached a certain height, is placed in the desired position. The beam is later drowned in the concrete. Check of the horizontality and fixing of the element to the vertical upright, which has different holes in order to enable the fixing of the beam in every desired position, (table 9 - picture 13).

This operation has to be repeated in a modular way, until the reaching of the slab above, step 10

At the height of the slab, we insert the particular plates with the screwing system described, (table 9 - picture 14; piece 6 - table 15; piece 7/8 - table 16).

As an alternative to this, it is also possible to use the plate element with screw pin. (table 21 - piece 15).

We insert the crossbeams, check the horizontality of the mesh and later bolt it.

To stiffening the anchor structure to the slab and/or beams we also insert an appropriate stiffening element, (piece 8/9 - table 17).

step 1 1

We insert at the end of the vertical upright a bolted bar smaller than the upright, whose function is to enable the connection with the new vertical upright that is inserted above, (piece 1 1 - table 18) step 12

the mounting process described above, has to be repeated for every floor of the building, step 13

fixing of the stiffening mesh to the cladding.

For pitched roofs it is better to choose the swivel plate (piece 12/13 - table 19), to better fit the structure to every building's slope. For flat ones we use the base-plate.

Make marks of the holes over the slab/beam (table 10 - figure 15)

step 14

Thanks to an electric drill we hole the structure of the building (table 1 1 - picture 16)

step 15

Positioning of the plate and bolting of the element to the structure of the building (table 1 1 - picture 17)

step 16

Completion of the laying of the external face of the facade.

Claims

PRIORITY CLAIM Stiffening system of exposed facades, anchored to the carrying skeleton structure. Modular mesh used in the field of civil civil building, made with different types of materials, according to the different uses and the dimensions of the structure itself, it is very versatile and suitable to every design need. the system is a stiffening structure for exposed fagade, very useful for solving seismic issues of buildings and energy saving. Claim:

1 . modular checkerboard frame anchored to the carrying skeleton structure

2. reticular modular structure with vertical and horizontal elements, adaptable to every design and building need

3. modular structure suitably dimensioned according to the building and design needs

4. iron, steel or other material framework, according to the static needs, design needs of the building

5. stiffening mesh made of vertical and horizontal elements with different thicknesses and shapes

6. System of stiffening with mesh that prevents the external brickwork of facade from torsion, separation and overturning

7. modular mesh invisible in the facade

8. modular mesh of stiffening inlaid inside the wall surface of the external facade

9. modular mesh drowned in the laying mortar of the the wall surface of the external facade

10. backing plate for the mesh structure anchored to the structure of the building

1 1 . the modular checkerboard frame becomes a singular element, united to the skeleton of the building

12. sliding system, fast and easy to understand and of easy usage and erection

13. sliding element, with poles of easy and effortless mounting

14. "bayonet" element for continuing the structure of effortless mounting

15. backing plate dimensioned on the specific purpose of lying inside the external brickwork of facade

16. backing plate of the structure also suitable for the end of the mesh structure, e.g. for flat roofs

17. ending element with articulating joint for sloping roof, suitable for every slope

18. anchor element for roof/beam with pivot adaptable to every design need

19. anchor element for roof/beam with pivot adaptable, secured with adequate distance, according to every design need

20. anchor element for roof/beam fixed with adequate distance according to every design and building need

21 . anchor screw element to stiffen structure and for more anchoring to the building

22. anchor element with pin adaptable to every design need and to every insulation thickness

23. T-shaped elements for the stability and rigidity of the modular mesh

24. joints adaptable to every design and building need

25. removal of thermal bridges thanks to adequate gaskets

26. removal of thermal bridges thanks to coating over the supporting plate

27. removal of thermal bridges by the structure with adequate materials

28. anchor element for roof/beam with pin and screw adaptable to every building and design need

29. support element for the ventilate facade cladding^*