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EP 0 086 579 B1 |
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EUROPEAN PATENT SPECIFICATION |
(45) |
Mention of the grant of the patent: |
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08.04.1987 Bulletin 1987/15 |
(22) |
Date of filing: 25.01.1983 |
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(54) |
Building structure
Gebäudekonstruktion
Structure de bâtiment
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Designated Contracting States: |
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BE DE FR IT NL |
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Priority: |
25.01.1982 GB 8201973
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Date of publication of application: |
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24.08.1983 Bulletin 1983/34 |
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Applicants: |
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- Soden, Laurence Martin
Stanmore
Middlesex HA7 3LJ (GB)
- West, John Brian
Camberley
Surrey (GB)
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(72) |
Inventors: |
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- Soden, Laurence Martin
Stanmore
Middlesex HA7 3LJ (GB)
- West, John Brian
Camberley
Surrey (GB)
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(74) |
Representative: Wright, Peter David John et al |
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Willowbrook
Winkfield Row GB-Bracknell, Berkshire RG42 6LS GB-Bracknell, Berkshire RG42 6LS (GB) |
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Note: Within nine months from the publication of the mention of the grant of the European
patent, any person may give notice to the European Patent Office of opposition to
the European patent
granted. Notice of opposition shall be filed in a written reasoned statement. It shall
not be deemed to
have been filed until the opposition fee has been paid. (Art. 99(1) European Patent
Convention).
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[0001] This invention concerns permanent building structures and methods of making such
building structures.
[0002] More particularly, the invention provides a permanent, non-transportable building
structure of adjustable dimensions and a method of making such a building structure.
[0003] Such a structure has application in various types of building. For example, it may
be used in industrial buildings offering office or warehouse space. It may also be
employed in buildings for commercial, domestic, horticultural, or leisure purposes.
[0004] There are considerable advantages in being able to vary the dimensions of a permanent
building as desired. Since the size of the building can be adapted to suit the needs
of the occupier, the building will appeal to a wide range of prospective tenants in
the first instance and should be easy to sell or let. And, as far as the inhabitants
of such a building are concerned, they can alter its size as their requirements change
and thereby avoid the problems of finding and moving to different premises.
[0005] According to one aspect of the present invention we provide a method of making a
permanent, non-transportable building structure characterised by:
[0006] constructing on site and from component materials a building comprising a rigid lower
frame defining a lower shell portion which is permanently mounted in foundations,
and a rigid upper frame defining an upper shell portion, the upper shell portion being
vertically movable relative to the lower shell portion between a lowered position
in which the two shell portions overlap to a substantial extent and a raised position
in which the two shell portions overlap to a lesser extent wherein the upper and lower
shell portions are designed to permit use of the building in both the raised and the
lowered position of the upper shell portion, the upper shell portion being arranged
in one of its lowered or raised positions.
[0007] According to another aspect of the present invention we provide a permanent non-transportable
building structure which is constructed on site from component materials characterised
by an outer shell arranged to define a substantially enclosed usable space of adjustable
dimensions, a section at least of the outer shell having a rigid lowerframe permanently
mounted in foundations and defining a lower shell portion, a rigid upper frame defining
an upper shell portion, the upper shell portion being vertically movable relative
to the lower shell portion and being arranged in one of a lowered position in which
the two shell portions overlap to a substantial extent and a raised position in which
the two shell portions overlap to a lesser extent wherein the upper and lower shell
portions are designed to permit use of the building in both the raised and the lowered
position of the upper shell portion and means for fixing the upper shell portion relative
to the lower shell portion in the raised position at least. The outer shell may have
only one adjustable section constituting either the whole or simply a part of the
shell. Alternatively, it may have a plurality of independently adjustable sections.
[0008] Preferably, the lower and upper portions have structural beams, with the beams of
one portion slideably engaging those of the other. In the embodiments described below,
the beams of the upper portion are provided by portal frames and the beams of the
lower portion constitute stanchions mounted in foundations.
[0009] It is a feature of these embodiments that the portal frames and the foundations are
so arranged that jacks can be temporarily inserted between them for raising and lowering
the upper portion of the outer shell.
[0010] The beams may conveniently be H-section in form and, in each engaged pair, the side
of one may be held in slideable engagement with the side of the other by one or more
guides. For example, the free end of at least one of the two beams may have one, or
more than one, guide fixed to itwhich embraces the other beam in sliding or rolling
engagement. Preferably, each guide has a U-shaped section and fits over respective
edges of the two beams.
[0011] Turning to the means for securing the upper and lower portions relative to one another,
these are advantageously employed in the lowered position as well as the raised position
for stability. Bolts and/or clamps can conveniently be used for the purpose.
[0012] In addition to the structural beams, either or both of the upper and lower portions
may also include wind bracing, together with some form of cladding.
[0013] The invention is described further by way of example with reference to the accompanying
drawings in which:
Figure 1 is a perspective view of a first building embodying the invention;
Figures 2 and 3 are fragmentary side views of the building in different conditions;
Figures 4 and 5 are sectional views of the building in different conditions;
Figures 6 and 7 are more detailed sectional views of a portion of the building in
different conditions;
Figures 8 and 9 are sections taken along the line X-X in Figure 6 in different conditions
of the building;
Figure 10 is a side view of one of the guides illustrated in Figures 8 and 9;
Figure 11 is a perspective view of another building embodying the invention;
Figure 12 is perspective view of a further building embodying the invention; and
Figures 13 to 15 are detailed sectional views of a portion of the building shown in
Figure 12 in different conditions.
[0014] Referring initiallyto Figures 1 to 10,theseshowa building comprising an outer shell
10 which is adjustable as a whole to alter the dimensions of the building. The shell
10 has a fixed, rigid lower portion 12, and a rigid upper portion 14 supported by
the lower portion for movement between a lowered position and a raised position.
[0015] In the lowered position, represented in Figures 1, 2, 4 and 6, the two portions overlap
to a substantial extent. They still overlap in the raised position, as illustrated
in Figures 3, 5 and 7, but only to a much lesser extent. Consequently, they define
an interior space which remains permanently substantially enclosed apart from points
of access such as doors and windows.
[0016] The lower portion 12 of the building comprises a plurality of rolled steel stanchions
16 embedded in concrete foundations 18 (see Figures 6 and 7). Braces 20 are mounted
between the stanchions 16 to provide stability, and a conventional form of cladding
22 is supported against the interior sides of the stanchions 16 for weatherproofing.
[0017] Appropriately positioned openings 3 in the cladding 22 serve for doors and windows.
[0018] The stanchions 16 are H-shaped in section and arranged with one side 24 of the H
supporting the cladding and with the other side 26 projecting outwardly beyond the
cladding. The sides 26 are maintained in slideable engagement with corresponding rolled
steel beams 28 forming the limbs of a plurality of portal frames 30. Like the stanchions
16, the beams 28 are H-shaped in section and they are arranged so that one side 32
of the H overlies the side 26 of the associated stanchion 16. The other, exterior,
side 34 and the outer edge of the overhead member 36 of the portal frame 30 carry
a conventional form of cladding 38.
[0019] The upper portion 14 may have braces 40 permanently provided between the beams 28
to give it stability; or it may be devoid of such braces when lowered and only have
them fixed in place when it is in the raised condition.
[0020] Openings 42 in the cladding 38 are supplied for windows and doors. These openings
may be permanent or they may be covered over with cladding 38 and opened up according
to the current needs of the occupier. In any event, however, when the upper portion
14 is in the lowered condition, suitably sited openings 42 are provided to coincide
with the access openings to the lower portion 12.
[0021] In order to locate the portal frames 30 relative to the stanchions 16 at all times,
at least one pair of guides 44 is arranged to act between each stanchion 16 and the
associated beam 28. Since the arrangement is the same in each case, only one will
be described.
[0022] In this instance, the guides 44 are situated at the lower end of the beam 28 so as
to co-operate with its inner side 32 and the outer side 26 of the stanchion 16. Each
guide 44 is in the form of a U-shaped slide as shown in Figures 8 to 10. The slides
44 embrace the sides 26, 32 and are secured to the sides 32 as by welding, but are
not in any way attached to the sides 26.
[0023] Consequently, the slides 44 are arranged to guide the beam 28 for sliding along the
stanchion 16, and to facilitate such movement the longitudinal ends 46 of the portion
of each slide embracing the side 26 are raised away from that side. Additionally,
the slides 44 serve not only to limit movement of the beam 28 outwardly from the stanchions
16 but also to restrict lateral movement of these elements relative to one another.
[0024] For fixing the upper portion 14 in its position, either raised or lowered, one or
more sets of bolts or clamps 48 are fixed between the stanchions 16 and the beams
28 to engage their sides 26 and 32.
[0025] When the upper portion 14 is in its lowered position, the portal frames 30 are supported
on the free upper ends of the stanchions 16, and the bolts or clamps 48 secure the
limbs 28 against the tops and the bottoms of the stanchions 16. In this condition,
the lower ends of the beams 28 are spaced a short distance above portions of the foundations
18.
[0026] In order to raise the upper portion 14, the following procedure is adopted:
Braces are fixed between the portal limbs, if not already present. And any cladding
that needs altering or removing is dealt with.
[0027] Jacks are then temporarily inserted between the foundations 18 and the portal limbs
28 at some or all of the available points around the building. These jacks are fixed
in position, connected up to power supplies and fully tested. Following this, they
are inflated to take the load of the upper portion 14, but not further.
[0028] The guides 44 are then lubricated for ease of sliding and any potential obstructions
are removed.
[0029] Next, the means securing the portal frames 30 to the stanchions 16 are eased, at
the top first, and then at the bottom, after which they are removed.
[0030] The jacks are now inflated simultaneously in one or more stages to raise the upper
portion 14 to the desired position, whereupon the portal frames 30 and stanchions
16 are fixed together again. Finally, the jacks are released.
[0031] Lowering of the upper portion 14 is a similar exercise, although it is preferable
to make any adjustments required in the cladding and bracing at the end.
[0032] The height of the building can thus be adjusted as desired and by making appropriate
alterations in the interior, the building can be converted for example from one to
two stories or from a small to a much increased storage volume.
[0033] Any services are preferably arranged on a ring system, either with freely connectable
extensions or with spare line capacity as appropriate to accommodate alterations.
Additional cladding is also provided to seal between the upper and lower portions
of the building.
[0034] Turning to Figure 11, this illustrates a modified form of the building which has
two independently adjustable sections 50, 52.
[0035] Each of these is constructed in a manner similar to that described with reference
to Figures 1 to 10 and so further explanation is not required except to say that the
upper portion of one section is raised while that of the other remains lowered, as
shown, additional cladding will have to be added to close the vertical gap created
between the two.
[0036] The buildings shown in Figures 1 and 11 each have only a single span. Figures 12
to 15 concern a multispan building, having as many as four independently adjustable
sections 60, 62, 64 and 66.
[0037] The principle of construction and the manner of raising and lowering the upper portions
remains the same, but the region 68 defining the join between the two spans is adapted
to permit alterations in height of sections of one span independently of sections
of the other (see Figures 13 to 15).
[0038] In this region 68, there are a plurality of free standing stanchions 70, which are
H-shaped in cross-section, embedded centrally within foundations 72. Respective limbs
28 of the portals 30 of one span are located by their guides 44 against the stanchions
70 on one side. Likewise, respective limbs 28 of the portals 30 of another span are
located by the guides 44 against the stanchions 70 on the other side. As before, bolts
or clamps 48 serve to secure each limb 28 against the adjacent side of the associated
stanchion 70 in the desired position.
[0039] Each span can be raised or lowered independently of the other simply by placing jacks
on the foundations 72 under some of all of the relevant portal limbs 28. Of course,
if one span is raised while the other remains lowered, it will be necessary to apply
cladding 74 to the raised span as illustrated in Figure 14 for weatherproofing.
[0040] The described structures have a high degree of adaptability, but can still be constructed
simply in a weather-tight manner. They remain rigid and stable in all conditions and
are consequently suitable for industrial, leisure and indeed many other uses.
1. A permanent building structure which is constructed on site from component materials
characterised by an outer shell (10) arranged to define a substantially enclosed usable
space of adjustable dimensions, a section at least of the outer shell (10) having
a rigid lower frame (12) permanently mounted in foundations (18) and defining a lower
shell portion and a rigid upper frame (14) defining an upper shell portion, the upper
shell portion being vertically movable relative to the lower shell portion and being.arranged
in one of a lowered position in which the two shell portions overlap to a substantial
extent and a raised position in which the two shell portions overlap to a lesser extent
wherein the upper and lower shell portions are designed to permit use of the building
in both the raised and the lowered position of the upper shell portion, and means
(48) for fixing the upper shell portion relative to the lower shell portion in the
raised position at least.
2. A structure as claimed in claim 1, characterised in that the upper frame includes
structural beams (28) arranged slidably to engage the structural beams (16) of the
lower frame.
3. A structure as claimed in claim 2, characterised in that the beams (28) of the
upper frame are provided by portal frames (30).
4. A structure as claimed in claim 3, characterised in that the portal frames (30)
and the foundations (18) are arranged for receiving jacks therebetween for raising
and lowering the upper shell portion (14).
5. A structure as claimed in any of claims 2 to 4, characterised in that the beams
(16, 28) comprise H-section beams, and in that the beams are arranged in pairs each
comprising a respective beam of the lower frame and a respective beam of the upper
frame, and in that the side (26) of one beam (16) in each pair is held in slidable
engagement with the side (32) of the other beam (28) in the same pair by guide means
(44).
6. A structure as claimed in claim 5, characterised in that a free end of at least
one of the two beams in each pair is held in slidable engagement with the other beam
in the same pair of the guide means (44).
7. A structure as claimed in claim 5 or 6, characterised in that the guide means (44)
comprise a plurality of guides, each having a substantially U-shaped section and being
arranged to fit over respective edges of the two beams in the associated pair.
8. A structure as claimed in claim 7, characterised in that each guide has one limb
fixed to one (28) of the two beams in the associated pair and the other limb disposed
for sliding or rolling engagement with the other beam (16) in the associated pair.
9. A structure as claimed in any preceding claim, characterised in that the fixing
means (48) are arranged to fix the upper frame (14) relative to the lower frame (12)
in the lowered position.
10. A structure as claimed in any preceding claim, in which the outer shell bracket
(10) has only a single adjustable section providing either a part or the whole of
the outer shell.
11. A structure as claimed in any of claims 2 to 9, in which the outer shell (10)
has a plurality of independently adjustable sections.
12. A method of making a permanent, non-transportable building structure characterised
by: constructing on site and from component materials a building comprising a rigid
lower frame (12) defining a lower shell portion which is permanently mounted in foundations
(18), and a rigid upper frame (14) defining an upper shell portion, the upper shell
portion being vertically movable relative to the lower shell portion between a lowered
position in which the two shell portions overlap to a substantial extent and a raised
position in which the two shell portions overlap to a lesser extent wherein the upper
and lower shell portions are designed to permit use of the building in both the raised
and the lowered position of the uppershell portion, the upper shell portion being
arranged in one of its lowered or raised positions.
13. A method according to claim 12 characterised by:
moving the upper shell portion from its arranged position to the other of its lowered
or raised positions, and
altering the number of storeys in the building structure.
1. Feste Gebäudekonstruktion, die am Bauplatz aus Einzelteilmaterialien aufgebaut
wird, gekennzeichnet durch einen äußeren Gebäudekörper (10), der so ausgebildet ist,
daß er einen im wesentlichen geschlossenen nutzbaren Raum mit einstellbaren Abmessungen
begrenzt, wobei wenigstens ein Teil des äußeren Gebäudekörpers (10) einen starren
unteren Rahmen (12), der fest in Fundamenten aufgebaut ist und einen unteren Gebäudekorperteil
begrenzt, und einen starren oberen Rahmen (14) aufweist, der einen oberen Gebäudekörperteil
begrenzt, wobei der obere Gebäudekörperteil relativ zum unteren Gebäudekörperteil
vertikal bewegbar und in einer abgesenkten Lage, in der die beiden Gebäudekörperteile
sich in einem erheblichen Maß überlappen, oder einer angehobenen Lage angeordnet ist,
in der sich die beiden Gebäudekörperteile in einem geringeren Maß überlappen, und
wobei der obere und untere Gebäudekörperteil so ausgelegt sind, daß'eine Benutzung
des Gebäudes sowohl in der angehobenen als auch in der abgesenkten Lage des oberen
Gebäudekörperteils möglich ist, und Einrichtungen (48) zum Festlegen des oberen Gebäudekörperteils
relativ zum unteren Gebäudekörperteil wenigstens in der angehobenen Lage.
2. Konstruktion nach Anspruch 1 dadurch gekennzeichnet, daß der obere Rahmen Baukonstruktionsträger
(28) enthält, die gleitend verschiebbar angeordnet sind, um die Baukonstruktionsträger
(16) des unteren Rahmens in Eingriff zu nehmen.
3. Konstruktion nach Anspruch 2 dadurch gekennzeichnet, daß die Träger (28) des oberen
Rahmens von Portalrahmen (30) geliefert werden.
4. Konstruktion nach Anspruch 3 dadurch gekennzeichnet, daß die Portalrahmen (30)
und die Fundamente (18) so ausgebildet sind, daß dazwischen Hubeinrichtungen zum Anheben
und Absenken des oberen Gebäudekörperteils (14) aufgenommen werden können.
5. Konstruktion nach einem der Ansprüche 2 bis 4 dadurch gekennzeichnet, daß die Träger
(16, 28) H-Träger umfassen und daß die Träger in Paaren angeordnet sind, von denen
jedes einen jeweiligen Träger des unteren Rahmens und einen Träger des oberen Rahmens
umfaßt, und daß die Seite (26) eines Trägers (16) in jedem Paar in einer Gleitineingriffnahme
mit der Seite (32) des anderen Trägers (28) im selben Paar über eine Führungseinrichtung
(44) gehalten ist.
6. Konstruktion nach Anspruch 5 dadurch gekennzeichnet, daß ein freies Ende wenigstens
eines der beiden Träger in jedem Paar in einer Gleitineingriffnahme mit dem anderen
Träger im selben Paar der Führungseinrichtung (44) gehalten ist.
7. Konstruktion nach Anspruch 5 oder 6 dadurch gekennzeichnet, daß die Führungseinrichtung
(44) eine Vielzahl von Führungen umfaßt, von denen jede einen im wesentlichen U-förmigen
Querschnitt hat und so angeordnet ist, daß sie über die jeweiligen Ränder der beiden
Träger im zugehörigen Paar paßt.
8. Konstruktion nach Anspruch 7 dadurch gekennzeichnet, daß jede Führung mit einem
Schenkel an einem (28) der beiden Träger ihm zugehörigen Paar befestigt und mit dem
anderen Schenkel für eine Gleit- oder Rollineingriffnahme mit dem anderen Träger (16)
im zugehörigen Paar angeordnet ist.
9. Konstruktion nach einem der vorhergehenden Ansprüche dadurch gekennzeichnet, daß
die Festlegungseinrichtungen (48) so angeordnet sind, daß sie den oberen Rahmen (14)
relativ zum unteren Rahmen (12) in der abgesenkten Lage festlegen.
10. Konstruktion nach einem der vorhergehenden Ansprüche, bei der der äußere Gebäudekörperträger
(10) nur einen einzigen einstellbaren Teil hat, der entweder einen Teil des äußeren
Gebäudekörpers oder den gesamten äußeren Gebäudekörper bildet.
11. Konstruktion nach einem der Ansprüche 2 bis 9, bei der der äußere Gebäudekörper
(10) eine Vielzahl von unabhängig einstellbaren Teilen hat.
12. Verfahren zum Erstellen einer festen nicht transportierbaren Gebäudekonstruktion
dadurch gekennzeichnet, daß am Bauplatz und aus Einzelteilmaterialien ein Gebäude
aufgebaut wird, das einen starren unteren Rahmen (12), der einen unteren Gebäudekörperteil
begrenzt, der fest in Fundamenten (18) aufgebaut ist, und einen starren oberen Rahmen
(14) umfaßt, der einen oberen Gebäudekörperteil begrenzt, wobei der obere Gebäudekörperteil
relativ zum unteren Gebäudekörperteil zwischen einer abgesenkten Lage, in der beide
Gebäudekörperteile sich in einem erheblichen Maß überlappen, und einer angehobenen
Lage vertikal bewegbar ist, in der sich die beiden Gebäudekörperteile in einem geringeren
Maß überlappen, und wobei der obere und der untere Gebäudekörperteil so ausgelegt
sind, daß eine Benutzung des Gebäudes sowohl in der angehobenen als auch in der abgesenkten
Lage des oberen Gebäudekörperteils möglich ist, während sich der obere Gebäudekörperteil
in seiner abgesenkten oder in seiner angehobenen Lage befindet.
13. Verfahren nach Anspruch 12 dadurch gekennzeichnet, daß der obere Gebäudekörperteil
von seiner Anordnungslage in seine andere abgesenkte oder angehobene Lage bewegt und
die Anzahl der Stockwerke in der Gebäudekonstruktion geändert wird.
1. Structure de bâtiment permanente qui est construite sur le site à partir de matériaux
constitutifs, caractérisée par une enveloppe extérieure (10) conçue de façon à définir
un espace utilisable substantiellement fermé et de dimensions ajustables, une partie
au moins de l'enveloppe extérieure (10) ayant une ossature inférieure rigide (12)
montée de façon permanente dans des fondations (18) et définissant une partie d'enveloppe
inférieure, et une ossature supérieure rigide (14) définissant une partie d'enveloppe
supérieure, la partie d'enveloppe supérieure étant mobile verticalement par rapport
à la partie d'enveloppe inférieure et étant disposée dans une position abaissée dans
laquelle les deux parties d'enveloppe se chevauchent de manière substantielle ou une
position élevée dans laquelle les deux parties d'enveloppe se chevauchent dans une
moindre mesure, les parties d'enveloppe supérieure et inférieure étant conçues pour
permettre l'utilisation du bâtiment tant dans la position élevée que dans la position
abaissée de la partie d'enveloppe supérieure, et des moyens (48) pour fixer la partie
d'enveloppe supérieure par rapport à la partie d'enveloppe inférieure au moins dans
la position élevée.
2. Structure selon la revendication 1, caractérisée en ce que l'ossature supérieure
comprend des poutres structurelles (28) prévues coulissantes pour qu'elles s'accouplent
avec les poutres structurelles (16) de l'ossature inférieure.
3. Structure selon la revendication 2, caractérisée en ce que les poutres (28) de
l'ossature supérieure sont munies d'ossatures en portique (30).
4. Structure selon la revendication 3, caractérisée en ce que les ossatures en portique
(30) et .les fondations (18) sont disposées de façon à recevoir entre elles des vérins
pour élever et abaisser la partie d'enveloppe supérieure (14).
5. Structure selon l'une quelconque des revendications 2 à 4, caractérisée en ce que
les poutres (16, 28) comprennent des poutres à section en H, en ce que les poutres
sont disposées par paires comprenant chacune une poutre respective de l'ossature inférieure
et une poutre respective de l'ossature supérieure, et en ce que le côté (26) d'une
poutre (16) de chaque paire est accouplée par coulissement avec les côtés (32) de
l'autre poutre (28) de la même paire par des moyens de guidage (44).
6. Structure selon la revendication 5, caractérisée en ce qu'une extrémité libre d'au
moins l'une des deux poutres de chaque paire est accouplée par coulissement avec l'autre
poutre de la même paire par des moyens de guidage (44).
7. Structure selon la revendication 5 ou 6, caractérisée en ce que les moyens de guidage
(44) comprennent plusieurs dispositifs de guidage, chacun présentant une section transversale
en forme de U et étant disposé de façon à recouvrir les bords respectifs des deux
poutres de la paire associée.
8. Structure selon la revendication 7, caractérisée en ce que chaque dispositif de
guidage a une branche fixée à l'une (28) des deux poutres de la paire associée et
l'autre branche disposée pour s'accoupler par coulissement ou roulement avec l'autre
poutre (16) de la paire associée.
9. Structure selon l'une quelconque des revendications précédentes, caractérisé en
ce que les moyens de fixation (48) sont disposés de façon à fixer l'ossature supérieure
(14) par rapport à l'ossature inférieure (12) en position abaissée.
10. Structure selon l'une quelconque des revendications précédentes, dans laquelle
l'enveloppe extérieure (10) ne possède qu'une seule section ajustable constituant
tout ou partie de l'enveloppe extérieure.
11. Structure selon l'une quelconque des revendications 2 à 9, dans laquelle l'enveloppe
extérieure (10) possède plusieurs sections ajustables séparément.
12. Méthode de construction d'une structure de bâtiment permanente et non transportable,
caractérisée par:
la construction, sur le site et avec des matériaux constitutifs, d'un bâtiment comprenant
une ossature inférieure rigide (12) définissant une partie d'enveloppe inférieure
qui est montée de manière permanente dans des foundations (18), et une ossature supérieure
rigide (14) définissant une partie d'enveloppe supérieure, la partie d'enveloppe supérieure
étant mobile verticalement par rapport à la partie d'enveloppe inférieure entre une
position abaissée dans laquelle les deux parties d'enveloppe se chevauchent de manière
substantielle et une position élevée dans laquelle les deux parties d'enveloppe se
chevauchent dans une moindre mesure, les parties d'enveloppe supérieure et inférieure
étant conçues pour permettre l'utilisation du bâtiment tant dans la position élevée
que dans la position abaissée de la partie d'enveloppe supérieure, la partie d'enveloppe
supérieure étant disposée dans l'une de ses positions abaissée ou élevée.
13. Méthode selon la revendication 12, caractérisée par:
le déplacement de la partie d'enveloppe supérieure depuis sa position arrangée jusqu'à
l'autre de ses positions abaissée ou élevée, et
la modification du nombre des niveaux dans la structure du bâtiment.