WO2018087686A1 - Modular seismic-resistant supporting system for constructions - Google Patents

Modular seismic-resistant supporting system for constructions Download PDF

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Publication number
WO2018087686A1
WO2018087686A1 PCT/IB2017/057002 IB2017057002W WO2018087686A1 WO 2018087686 A1 WO2018087686 A1 WO 2018087686A1 IB 2017057002 W IB2017057002 W IB 2017057002W WO 2018087686 A1 WO2018087686 A1 WO 2018087686A1
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WO
WIPO (PCT)
Prior art keywords
elements
vertical support
support elements
supporting system
profile
Prior art date
Application number
PCT/IB2017/057002
Other languages
French (fr)
Inventor
Raffaele LANDOLFO
Luigi FIORINO
Vincenzo MACILLO
Maria Teresa TERRACCIANO
Original Assignee
Lamieredil Spa
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 Lamieredil Spa filed Critical Lamieredil Spa
Priority to EP17811707.3A priority Critical patent/EP3538717B1/en
Publication of WO2018087686A1 publication Critical patent/WO2018087686A1/en

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
    • E04B2/56—Load-bearing walls of framework or pillarwork; Walls incorporating load-bearing elongated members
    • E04B2/58—Load-bearing walls of framework or pillarwork; Walls incorporating load-bearing elongated members with elongated members of metal
    • 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
    • E04B1/02—Structures consisting primarily of load-supporting, block-shaped, or slab-shaped elements
    • 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
    • E04B1/02—Structures consisting primarily of load-supporting, block-shaped, or slab-shaped elements
    • E04B1/08—Structures consisting primarily of load-supporting, block-shaped, or slab-shaped elements the elements consisting of metal
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
    • E04B2/56—Load-bearing walls of framework or pillarwork; Walls incorporating load-bearing elongated members
    • E04B2/58—Load-bearing walls of framework or pillarwork; Walls incorporating load-bearing elongated members with elongated members of metal
    • E04B2/60—Load-bearing walls of framework or pillarwork; Walls incorporating load-bearing elongated members with elongated members of metal characterised by special cross-section of the elongated members
    • E04B2/62—Load-bearing walls of framework or pillarwork; Walls incorporating load-bearing elongated members with elongated members of metal characterised by special cross-section of the elongated members the members being formed of two or more elements in side-by-side relationship
    • 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
    • E04B1/24—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of metal
    • E04B1/2403—Connection details of the elongated load-supporting parts
    • E04B2001/2415—Brackets, gussets, joining plates
    • 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
    • E04B1/24—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of metal
    • E04B1/2403—Connection details of the elongated load-supporting parts
    • E04B2001/2448—Connections between open section profiles
    • 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
    • E04B1/24—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of metal
    • E04B2001/2496—Shear bracing therefor

Definitions

  • the present invention relates to a modular seismic- resistant supporting system for constructions.
  • the present invention relates to a modular seismic-resistant supporting system for constructions of the type using rods and able to be used in civil construction.
  • the CFS construction systems classified according to the level of prefabrication can be classified as: rod systems (stick-built), systems with panels (panelized construction) and systems with modules (modular construction) .
  • the rods construction system is the most widespread type of construction in the field of constructions and finds its origins in wood construction.
  • Such a system obtained by assembling steel members made of cold formed steel having a prevailing one-dimensional development (known as "studs”, “tracks” and “joints") and covering panels, connected to each other by means of screws, nails and bolts is characterized by rapidity of assembly, possibility to realize different types of buildings, low cost transport, easy work and low construction costs.
  • the assembly of a construction system with rods can take place essentially according to two systems: “platform system” and “balloon system.”
  • the two assembly methods are distinguished by the different conception of the structural system and, therefore, by the way in which the loads are transferred to the foundation.
  • a rod system assembled according to the "Platform system” methodology presents a structure built-up for floor, in such a way that the lower floor will act as a support for the realization of the upper one; the walls are not continuous and the loads are transferred to the walls of the lower floor through the structure of the slab.
  • the walls are continuous for several floors and the slab is connected to them. In it the loads pass from the top to the bottom without affecting the structure of the intermediate soles .
  • Scope of the present invention is to provide a modular seismic-resistant supporting system for constructions, having characteristics such as to overcome the limits which still affect the modular rods construction systems previously described with reference to the prior art .
  • a modular seismic- resistant supporting system 100 for constructions is provided, as defined in claim 1.
  • FIG. 1 shows a three-dimensional schematic view of a modular seismic-resistant supporting system for constructions, according to the invention
  • figure 2 shows a two-dimensional schematic front view of the modular seismic-resistant supporting system for constructions, according to the invention
  • FIG. 3 shows a schematic front view of driving reinforcements of the modular seismic-resistant supporting system for constructions, according to the invention
  • Figure 4 shows a two-dimensional schematic view along the section A-A' of the modular seismic-resistant supporting system for constructions, according to the invention
  • FIG. 5 shows a schematic front view of retaining elements of the modular seismic-resistant supporting system for constructions, according to the invention
  • FIG. 6 shows a two-dimensional schematic view of connecting elements connected to the diagonals of the modular seismic-resistant supporting system for constructions, according to the invention.
  • the modular seismic-resistant supporting system for constructions 100 comprises: a pair of outer vertical support elements 101 delimiting the entire system 100; an upper horizontal guide 102a and a lower horizontal guide 102b fitted between the outer vertical support elements 101; a plurality of inner vertical vertical support elements 103, for example three, comprised between the outer vertical support elements 101 of the ends; transversal elements 104 of intersection between the outer vertical support elements 101 and the inner vertical vertical support elements 103; diagonal elements 105, for example rods, for connecting the ends of the upper guide 102a with the diagonally opposite ends of the lower guide 102b; connecting elements, as hankies, 106 positioned at each intersection of an external vertical upright 101 with the upper guide 102a or lower guide 102b; internal connection elements 107, shown in Figure 4, for connecting the outer support elements 101 and the upper guide 102a and the lower guide 102b; retaining elements 108 placed on the transverse elements 104.
  • the inner vertical support elements 103 are coupled to the upper guide 102a and to the lower guide 102b by insertion of their ends inside the guide upper 102a and the lower guide 102b, having a U-shaped section.
  • connection elements 107 are coupled to the ends of the vertical support elements 101 and are locked with them and with the inner vertical support elements 103 by means of threaded connections, for example bolts not shown in the figures .
  • the internal connection elements 107 allow the module of the system 100 to be mounted on a structure.
  • the outer support elements 101 are pairs of "C” profiles connected to the upper guide 102a and the lower guide 102b on the higher side of the "C" shape (the back-back connection) .
  • the diagonal elements 105 are configured to absorb the transverse loads due to a possible earthquake.
  • a first pair of diagonal elements 105 and the hankies 106 are placed both on a front side and on a rear side of the system 100 assuming a X configuration.
  • the diagonal elements 105 are connected to the lower 102a and upper 102b guide and to the outer support elements 101 by means of the connection hankies 106.
  • the upper 102a and lower 102b guide comprise a plurality of upper reinforcements 102aa and lower reinforcements 102ba, each positioned internally respectively at the upper and lower ends of the vertical vertical support elements 103, and, more specifically, the upper reinforcements 102aa being inserted between the upper guide 102 and the upper ends of the vertical vertical support elements 103 and the lower reinforcements 102ba being inserted between the lower guide 102b and the lower ends of the vertical vertical support elements 103.
  • the reinforcements 102aa, 102ba are C shaped profiles.
  • the inner vertical support elements 103 are connected and kept at a predetermined distance between them by means of the transversal elements 104, placed at half height of the inner vertical support elements 103 and of the support elements 101 on the front and rear side of the system 100.
  • the internal connection elements 107 between the outer support elements 101 and the guides 102a and 102b are configured to guarantee the absorption of the high stresses to which the system 100 is subject when it is in place in work.
  • retaining elements 108 connected between to the transverse elements 104 are also connected between the outer support elements 101 and the inner vertical support elements 103 at mid-height.
  • the retaining elements 108 comprise a "C” shaped first upper profile 108a and a "U” shaped lower profile 108b, the first upper profile 108a being placed over the second lower profile 108b.
  • the transverse elements 104 and the retaining elements 108 are configured to ensure the stability of the system 100.
  • the Applicant performed experimental tests comparing the system 100 to one system representative of the prior art, showing an increase of more than 50% in the strength to the seismic loads acting on the horizontal plane, achieved by introducing the transverse elements 104, the "C” shaped first upper profile 108a, the “U” shaped lower profile 108b, the “C” shaped reinforcements 102aa and 102ba, the hankies 106 of the system 100 according to the invention .
  • the outer support elements 101 2x "C” Shaped Beam sized as 150x60x20x2
  • the diagonal elements 105 sized as 240x2
  • the first configuration according to the prior art showed a strength level to seismic load of 75 [kN] .
  • the outer support elements 101 2x "C” Shaped Beam sized as 150x60x20x1.5
  • the inner vertical support elements 103 2x "C” Shaped Beam sized as 150x60x20x1.5
  • First configuration tested of the system 100 according to the invention comprises:
  • the outer support elements 101 2x "C” Shaped Beam sized as 150x60x20x2
  • the inner vertical support elements 103 "C" Shaped Beam sized as 150x60x20x2
  • the transverse elements 104 sized as 60x2
  • the diagonal elements 105 sized as 240x2
  • the hankies 106 sized as 385x385x2
  • the reinforcements 102aa and 102ba "U" Shaped Beam sized as 150x60x20x2
  • the first configuration of the system 100 according to the invention showed a strength level to seismic load of 152.0 [kN] .
  • the second configuration tested according to the invention comprises: •
  • the inner vertical support elements 103 "C” Shaped Beam sized as 150x60x20x1.5
  • the transverse elements 104 sized as 60x1.5
  • the hankies 106 sized as 300x300x1.5
  • the reinforcements 102aa and 102ba 2x "U" Shaped Beam sized as 150x60x20x1.5
  • the second configuration tested, according to the invention showed a strength level to seismic load of 72.5 [kN] .
  • the strength of the system 100 due to the introduction of innovative components as the transverse elements 104, the "C” shaped first upper profile 108a, the “U” shaped lower profile 108b, the "C” shaped reinforcements 102aa and 102ba, the hankies 106, is largely improved with reference to the prior art, in both configuration tested.
  • the system 100 according to the invention in a first configuration, shows a 103% improvement with reference to prior art (in the first configuration) .
  • the system according to the invention in a second configuration, shows a 67% improvement with reference to prior art (in the second configuration) .
  • the system 100 includes innovative elements in order to improve the structural integrity against horizontal loads in the wall plane and therefore increases the seismic strength of the system 100.
  • the system 100 according to the invention guarantees better performance of the support elements against the overall bending instability with a bending plane parallel to the wall due to the introduction at mid-size of the wall of the transverse elements 104 and of the "C" shaped first upper profile 108a and the "U” shaped lower profile 108b, able to reduce by half the free bending length.
  • This system provides a retain against the overall bending instability of the support elements in the wall plane and therefore by using it allows to increase the carrier capacity of the upright to the axial compression and consequently the overall structural performance of the system against the horizontal loads acting on the plane of the walls.
  • the upper and lower "U” shaped guides are strengthened by adding the "C” shaped guides 102aa and 102ab inside them with self- tapping screws.
  • the profile of the 100 system consists of a rectangular box section which guarantees better behavior against instability, resulting in increased compression strength of the guides and supporting capabilities of the system against the horizontal loads acting on the wall plane.
  • connection hankies 106 allows a better connection of the diagonals to the frame. It is possible to distribute the fastening elements, such as screws, in a more rational way, and also form a medium that allows a more effective connection with the terminal posts and the upper/lower guide.
  • modular seismic-resistant supporting system 100 with such a better of the connection geometry leads to an improvement of its supporting capacity.
  • the system 100 is made of metal.
  • the system 100 is made of light alloy.
  • the modular seismic-resistant supporting system 100 for constructions according to the invention allows to provide modular structures for building use with a suitable strength to seismic events and easily adaptable.
  • Another advantage of the modular seismic-resistant supporting system for constructions according to the invention consists in the ability to realize also complex structures.
  • the modular seismic-resistant supporting system for constructions according to the invention is of low cost.
  • modular seismic-resistant supporting system for constructions is versatile and reconfigurable, being able to vary the strength to seismic events depending on the regulations impositions .

Abstract

Modular seismic-resistant supporting system (100) for constructions comprising: - at least one pair of outer vertical support elements (101); - at least one upper horizontal guide element (102a) and at least one lower horizontal guide element (102b) comprised between the outer vertical support elements (101); - at least one pair of inner vertical support elements (103) comprised between the outer vertical support elements (101), equipped with upper ends housed within said upper horizontal guide element (102a) and lower ends housed within said lower horizontal guide member (102b); - at least one pair of transverse elements (104) at the intersection between the outer vertical support elements (101) and the inner vertical support elements (103); - at least two pairs of connecting elements (106) positioned at the intersections between said outer vertical support elements (101) and said upper and lower horizontal guide elements (102a, 102b); and - 1 - - at least one pair of retaining elements (108) interposed between the outer vertical support elements (101) and the transverse elements (104); characterized in that: - the at least one pair of retaining elements (108) comprises an upper profile (108a) and a lower profile (108b), the upper profile (108a) being overlaid to the lower profile (108b); and - the upper and lower guide elements (102a, 102b) comprise a plurality of upper reinforcement elements (102aa) inserted between the upper guide element (102a) and the upper ends of the inner vertical support elements (103) and a plurality of lower reinforcement elements (102ba) inserted between the lower guide element (102b) and lower ends of the inner vertical support elements (103).

Description

DESCRIPTION
"Modular seismic-resistant supporting system for constructions "
~k ~k ~k
The present invention relates to a modular seismic- resistant supporting system for constructions.
In particular, the present invention relates to a modular seismic-resistant supporting system for constructions of the type using rods and able to be used in civil construction.
As it is known, in the field of European and national residential small and medium-sized construction, in the last few years, constructive systems with cold-formed steel support structure (cold formed steel, CFS) are developing. The interest for this constructive system, which emerges as an alternative to traditional structural systems, is due to the ability to combine high structural performance with lightness, rapidity of implementation, high standards of safety, durability and eco-efficiency .
The CFS construction systems, classified according to the level of prefabrication can be classified as: rod systems (stick-built), systems with panels (panelized construction) and systems with modules (modular construction) . The rods construction system is the most widespread type of construction in the field of constructions and finds its origins in wood construction. Such a system obtained by assembling steel members made of cold formed steel having a prevailing one-dimensional development (known as "studs", "tracks" and "joints") and covering panels, connected to each other by means of screws, nails and bolts is characterized by rapidity of assembly, possibility to realize different types of buildings, low cost transport, easy work and low construction costs.
The need to reduce the realization time of constructions favors the use of systems with panels or modules, based on the planimetric and altimetric assembly of two-dimensional or three-dimensional structural units, which, carried out in the workshop, are assembled by means of mechanical connection organs.
The assembly of a construction system with rods can take place essentially according to two systems: "platform system" and "balloon system." The two assembly methods are distinguished by the different conception of the structural system and, therefore, by the way in which the loads are transferred to the foundation. A rod system assembled according to the "Platform system" methodology presents a structure built-up for floor, in such a way that the lower floor will act as a support for the realization of the upper one; the walls are not continuous and the loads are transferred to the walls of the lower floor through the structure of the slab. In the "balloon" system, instead, the walls are continuous for several floors and the slab is connected to them. In it the loads pass from the top to the bottom without affecting the structure of the intermediate soles .
However, the use of cold-formed steel or "CFS" systems in European countries is still limited due to the reduced familiarity and understanding of such systems by designers and companies in the sector, as well as the inadequate strength to seismic action.
Scope of the present invention is to provide a modular seismic-resistant supporting system for constructions, having characteristics such as to overcome the limits which still affect the modular rods construction systems previously described with reference to the prior art .
According to the present invention, a modular seismic- resistant supporting system 100 for constructions is provided, as defined in claim 1.
For a better understanding of the present invention, a preferred embodiment is now described, purely by way of non-limiting example, with reference to the accompanying drawings in which:
- Figure 1 shows a three-dimensional schematic view of a modular seismic-resistant supporting system for constructions, according to the invention;
figure 2 shows a two-dimensional schematic front view of the modular seismic-resistant supporting system for constructions, according to the invention;
- Figure 3 shows a schematic front view of driving reinforcements of the modular seismic-resistant supporting system for constructions, according to the invention;
Figure 4 shows a two-dimensional schematic view along the section A-A' of the modular seismic-resistant supporting system for constructions, according to the invention;
- Figure 5 shows a schematic front view of retaining elements of the modular seismic-resistant supporting system for constructions, according to the invention;
- Figure 6 shows a two-dimensional schematic view of connecting elements connected to the diagonals of the modular seismic-resistant supporting system for constructions, according to the invention.
With reference to these figures and, in particular, to figures 1 and 2, a modular seismic-resistant supporting system for constructions is shown, according to the invention .
More in details, the modular seismic-resistant supporting system for constructions 100 comprises: a pair of outer vertical support elements 101 delimiting the entire system 100; an upper horizontal guide 102a and a lower horizontal guide 102b fitted between the outer vertical support elements 101; a plurality of inner vertical vertical support elements 103, for example three, comprised between the outer vertical support elements 101 of the ends; transversal elements 104 of intersection between the outer vertical support elements 101 and the inner vertical vertical support elements 103; diagonal elements 105, for example rods, for connecting the ends of the upper guide 102a with the diagonally opposite ends of the lower guide 102b; connecting elements, as hankies, 106 positioned at each intersection of an external vertical upright 101 with the upper guide 102a or lower guide 102b; internal connection elements 107, shown in Figure 4, for connecting the outer support elements 101 and the upper guide 102a and the lower guide 102b; retaining elements 108 placed on the transverse elements 104.
In more detail, the inner vertical support elements 103, having C shaped cross section, are coupled to the upper guide 102a and to the lower guide 102b by insertion of their ends inside the guide upper 102a and the lower guide 102b, having a U-shaped section.
According to an aspect of the invention, the internal connection elements 107 are coupled to the ends of the vertical support elements 101 and are locked with them and with the inner vertical support elements 103 by means of threaded connections, for example bolts not shown in the figures .
Advantageously according to the invention, the internal connection elements 107 allow the module of the system 100 to be mounted on a structure.
Advantageously according to the invention, the outer support elements 101 are pairs of "C" profiles connected to the upper guide 102a and the lower guide 102b on the higher side of the "C" shape (the back-back connection) .
Advantageously according to the invention, the diagonal elements 105 are configured to absorb the transverse loads due to a possible earthquake.
Advantageously according to the invention, a first pair of diagonal elements 105 and the hankies 106 are placed both on a front side and on a rear side of the system 100 assuming a X configuration. Advantageously according to the invention, as shown in Figures 2 and 6, the diagonal elements 105 are connected to the lower 102a and upper 102b guide and to the outer support elements 101 by means of the connection hankies 106.
According to an aspect of the invention, as best shown in Figure 3, the upper 102a and lower 102b guide comprise a plurality of upper reinforcements 102aa and lower reinforcements 102ba, each positioned internally respectively at the upper and lower ends of the vertical vertical support elements 103, and, more specifically, the upper reinforcements 102aa being inserted between the upper guide 102 and the upper ends of the vertical vertical support elements 103 and the lower reinforcements 102ba being inserted between the lower guide 102b and the lower ends of the vertical vertical support elements 103.
Advantageously according to the invention, the reinforcements 102aa, 102ba are C shaped profiles.
Advantageously according to the invention, the inner vertical support elements 103 are connected and kept at a predetermined distance between them by means of the transversal elements 104, placed at half height of the inner vertical support elements 103 and of the support elements 101 on the front and rear side of the system 100. In reference to Figure 4, advantageously according to the invention, the internal connection elements 107 between the outer support elements 101 and the guides 102a and 102b are configured to guarantee the absorption of the high stresses to which the system 100 is subject when it is in place in work.
As previously said, and as best shown in Figures 4 and 5, retaining elements 108 connected between to the transverse elements 104 are also connected between the outer support elements 101 and the inner vertical support elements 103 at mid-height.
More specifically, the retaining elements 108 comprise a "C" shaped first upper profile 108a and a "U" shaped lower profile 108b, the first upper profile 108a being placed over the second lower profile 108b.
Advantageously according to the invention, the transverse elements 104 and the retaining elements 108 are configured to ensure the stability of the system 100.
The Applicant performed experimental tests comparing the system 100 to one system representative of the prior art, showing an increase of more than 50% in the strength to the seismic loads acting on the horizontal plane, achieved by introducing the transverse elements 104, the "C" shaped first upper profile 108a, the "U" shaped lower profile 108b, the "C" shaped reinforcements 102aa and 102ba, the hankies 106 of the system 100 according to the invention .
With reference to the following summary, some experimental data are described as an example, to compare prior art systems to the system 100 according to the present invention. As shown in data below, the introduction of the following structural components in the system 100 grants an increase of more than 50% in the strength to the seismic loads acting on the horizontal plane Rd(kN) .
We will refer to the prior art and the system 100, according to the present invention, as:
1) First configuration according to prior art
2) Second configuration according to prior art 3) First configuration according to invention
4) Second configuration according to invention For each component referring to the systems numbered above, we will describe below the size and shape:
First configuration according to the prior art is made of:
• The outer support elements 101: 2x "C" Shaped Beam sized as 150x60x20x2
• The upper 102a and lower 102b guides: "U" Shaped Beam sized as 154x60x2 • The inner vertical support elements 103: "C" Shaped Beam sized as 150x60x20x2
• The transverse elements 104: None
• The diagonal elements 105: sized as 240x2
• The hankies 106: None
• The "C" shaped first upper profile 108a: None
• The "U" shaped lower profile 108b: None
• The reinforcements 102aa and 102ba: None
The first configuration according to the prior art showed a strength level to seismic load of 75 [kN] .
A second configuration according to the prior art comprises :
• The outer support elements 101: 2x "C" Shaped Beam sized as 150x60x20x1.5
• The upper 102a and lower 102b guides: "U" Shaped Beam sized as 153x60x1.5
• The inner vertical support elements 103: 2x "C" Shaped Beam sized as 150x60x20x1.5
• The transverse elements 104: None
• The diagonal elements 105: sized as 160x1.5
• The hankies 106: None
• The "C" shaped first upper profile 108a: None
• The "U" shaped lower profile 108b: None
• The reinforcements 102aa and 102ba: None The second configuration according to the prior art showed a strength level to seismic load of 43.5 [kN] .
First configuration tested of the system 100 according to the invention comprises:
• The outer support elements 101: 2x "C" Shaped Beam sized as 150x60x20x2
• The upper 102a and lower 102b guides: "U" Shaped Beam sized as 154x60x2
• The inner vertical support elements 103: "C" Shaped Beam sized as 150x60x20x2
• The transverse elements 104: sized as 60x2
• The diagonal elements 105: sized as 240x2
• The hankies 106: sized as 385x385x2
• The "C" shaped first upper profile 108a: "C" Shaped Beam sized as 150x60x20x2
• The "U" shaped lower profile 108b: "U" Shaped Beam 154x60x2
• The reinforcements 102aa and 102ba: "U" Shaped Beam sized as 150x60x20x2
The first configuration of the system 100 according to the invention showed a strength level to seismic load of 152.0 [kN] .
The second configuration tested according to the invention comprises: • The outer support elements 101: 2x "C" Shaped Beam sized as 150x60x20x1.5
• The upper 102a and lower 102b guides: "U" Shaped Beamsized as 153x60x1.5
• The inner vertical support elements 103: "C" Shaped Beam sized as 150x60x20x1.5
• The transverse elements 104: sized as 60x1.5
• The diagonal elements 105: sized as 160x1.5
• The hankies 106: sized as 300x300x1.5
• The "C" shaped first upper profile 108a: "C" Shaped Beam sized as 150x60x20x1.5
• The "U" shaped lower profile 108b: "U" Shaped Beam sized as 153x60x1.5
• The reinforcements 102aa and 102ba: 2x "U" Shaped Beam sized as 150x60x20x1.5
The second configuration tested, according to the invention showed a strength level to seismic load of 72.5 [kN] .
As shown by the experimental data above, the strength of the system 100, due to the introduction of innovative components as the transverse elements 104, the "C" shaped first upper profile 108a, the "U" shaped lower profile 108b, the "C" shaped reinforcements 102aa and 102ba, the hankies 106, is largely improved with reference to the prior art, in both configuration tested.
Advantageously with reference to the performed tests, the system 100 according to the invention, in a first configuration, shows a 103% improvement with reference to prior art (in the first configuration) .
Advantageously with reference to the performed tests, the system according to the invention, in a second configuration, shows a 67% improvement with reference to prior art (in the second configuration) .
Advantageously according to the invention, the system 100 includes innovative elements in order to improve the structural integrity against horizontal loads in the wall plane and therefore increases the seismic strength of the system 100. In particular, the system 100 according to the invention guarantees better performance of the support elements against the overall bending instability with a bending plane parallel to the wall due to the introduction at mid-size of the wall of the transverse elements 104 and of the "C" shaped first upper profile 108a and the "U" shaped lower profile 108b, able to reduce by half the free bending length. This system provides a retain against the overall bending instability of the support elements in the wall plane and therefore by using it allows to increase the carrier capacity of the upright to the axial compression and consequently the overall structural performance of the system against the horizontal loads acting on the plane of the walls.
The forces going through the diagonal components of the frame are heavily loading the upper and lower guides in compression, decreasing their structural strength in supporting the frame.
Advantageously according to the invention, the upper and lower "U" shaped guides are strengthened by adding the "C" shaped guides 102aa and 102ab inside them with self- tapping screws.
Advantageously, the profile of the 100 system consists of a rectangular box section which guarantees better behavior against instability, resulting in increased compression strength of the guides and supporting capabilities of the system against the horizontal loads acting on the wall plane.
Advantageously, the connection hankies 106 allows a better connection of the diagonals to the frame. It is possible to distribute the fastening elements, such as screws, in a more rational way, and also form a medium that allows a more effective connection with the terminal posts and the upper/lower guide. Advantageously, modular seismic-resistant supporting system 100 with such a better of the connection geometry leads to an improvement of its supporting capacity.
According to an aspect of the invention, the system 100 is made of metal.
According to another aspect of the invention, the system 100 is made of light alloy.
Therefore, the modular seismic-resistant supporting system 100 for constructions according to the invention allows to provide modular structures for building use with a suitable strength to seismic events and easily adaptable.
Another advantage of the modular seismic-resistant supporting system for constructions according to the invention consists in the ability to realize also complex structures.
In addition, the modular seismic-resistant supporting system for constructions according to the invention, is of low cost.
Finally, the modular seismic-resistant supporting system for constructions according to the invention is versatile and reconfigurable, being able to vary the strength to seismic events depending on the regulations impositions . Finally, it is apparent that the modular seismic- resistant supporting system for constructions here described and illustrated may be subject to modifications and variations without thereby departing from the scope of the present invention, as defined in the appended claims.

Claims

1. Modular seismic-resistant supporting system (100)onstructions comprising:
- at least one pair of outer vertical support elements (101) ;
- at least one upper horizontal guide element (102a) and at least one lower horizontal guide element (102b) comprised between the outer vertical support elements (101) ;
- at least one pair of inner vertical support elements (103) comprised between the outer vertical support elements (101), equipped with upper ends housed within said upper horizontal guide element (102a) and lower ends housed within said lower horizontal guide member (102b) ;
- at least one pair of transverse elements (104) at the intersection between the outer vertical support elements (101) and the inner vertical support elements (103) ;
- at least two pairs of connecting elements hankies (106) positioned at the intersections between said outer vertical support elements (101) and said upper and lower horizontal guide elements (102a, 102b); and at least one pair of retaining elements (108) interposed between the outer vertical support elements (101) and the transverse elements (104);
characterized in that:
- the at least one pair of retaining elements (108) comprises an upper profile (108a) and a lower profile (108b), the upper profile (108a) being overlaid to the lower profile (108b); and
the upper and lower guide elements (102a, 102b) comprise a plurality of upper reinforcement elements
(102aa) inserted between the upper guide element (102a) and the upper ends of the inner vertical support elements (103) and a plurality of lower reinforcement elements (102ba) inserted between the lower guide element (102b) and lower ends of the inner vertical support elements (103) .
2. Modular seismic-resistant supporting system (100) for constructions according to claim 1, characterized in comprising at least a pair of further internal connection elements (107) positioned between said outer vertical support elements (101) and said upper and lower guide elements (102a, 102b) and blocked with said outer elements (101) and said inner elements (103) .
3. Modular seismic-resistant supporting system (100) for constructions according to claim 1, characterized in that said upper and lower guide elements (102a, 102b) have a "U" shaped profile.
4. Modular seismic-resistant supporting system (100) for constructions according to claim 1, characterized in that said reinforcements elements (102aa, 102ba) have a "C" shaped profile.
5. Modular seismic-resistant supporting system (100) for constructions according to claim 1, characterized in comprising at least one pair of diagonal elements (105) connected to said outer vertical support elements (101) and to the upper and lower guide elements (102a, 102b) by means of the connecting elements hankies (106) .
6. Modular seismic-resistant supporting system (100) for constructions according to claim 1, characterized in that said inner vertical support elements (103) are connected and maintained each other at a predetermined distance by means of said transverse elements (104) .
7. Modular seismic-resistant supporting system (100) for constructions according to claim 1, characterized in that said transverse elements (104) are placed at half height of said inner vertical support elements (103) and of said outer vertical support elements (101) both on a front side and on a rear side of the system (100) .
8. Modular seismic-resistant supporting system (100) for constructions according to claim 1, characterized in that said outer vertical support elements (101) have a "C" shaped profile.
9. Modular seismic-resistant supporting system (100) for constructions according to claim 1, characterized in that said inner vertical support elements (103) have a "C" shaped profile.
10. Modular seismic-resistant supporting system (100) for constructions according to claim 1, characterized in that said upper profile (108a) have a "C" shaped profile and said lower profile (108b) have an "U" shaped profile.
11. Modular seismic-resistant supporting system (100) for constructions according to any one of the preceding claims, characterized in that it is made of a material comprised in the group constituted by:
- Metal;
- Light alloys.
PCT/IB2017/057002 2016-11-09 2017-11-09 Modular seismic-resistant supporting system for constructions WO2018087686A1 (en)

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IT102016000113028A IT201600113028A1 (en) 2016-11-09 2016-11-09 Sismo-resistant modular load-bearing construction system

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111749368A (en) * 2020-06-30 2020-10-09 中冶(上海)钢结构科技有限公司 Assembly type cascade support anti-side system and operation method thereof
CN115387508A (en) * 2022-08-24 2022-11-25 安徽省建筑科学研究设计院 Steel plate shear wall and construction method thereof

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6185898B1 (en) * 1998-07-10 2001-02-13 Robert F. Pratt High strength wall frames and system utilizing same
US20080086963A1 (en) * 2006-06-15 2008-04-17 Proffitt Ray A Jr Hold Down Clip and Wall System

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6185898B1 (en) * 1998-07-10 2001-02-13 Robert F. Pratt High strength wall frames and system utilizing same
US20080086963A1 (en) * 2006-06-15 2008-04-17 Proffitt Ray A Jr Hold Down Clip and Wall System

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111749368A (en) * 2020-06-30 2020-10-09 中冶(上海)钢结构科技有限公司 Assembly type cascade support anti-side system and operation method thereof
CN115387508A (en) * 2022-08-24 2022-11-25 安徽省建筑科学研究设计院 Steel plate shear wall and construction method thereof

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