U.S. patent number 3,645,056 [Application Number 04/814,506] was granted by the patent office on 1972-02-29 for connecting horizontal panels and vertical panels in prefabricated buildings.
This patent grant is currently assigned to Construzioni Generali Fazsura-Cogelar S.p.A.. Invention is credited to Luciano Gerola.
United States Patent |
3,645,056 |
Gerola |
February 29, 1972 |
CONNECTING HORIZONTAL PANELS AND VERTICAL PANELS IN PREFABRICATED
BUILDINGS
Abstract
The invention concerns a structure of connected horizontal
panels and vertical panels in prefabricated buildings, wherein the
horizontal panels bear on protrusions on the underlying vertical
panel and in the masonry filled joint all the structural irons are
bound together and welded.
Inventors: |
Gerola; Luciano (Milan,
IT) |
Assignee: |
Construzioni Generali
Fazsura-Cogelar S.p.A. (Milan, IT)
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Family
ID: |
11133855 |
Appl.
No.: |
04/814,506 |
Filed: |
March 26, 1969 |
Related U.S. Patent Documents
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Application
Number |
Filing Date |
Patent Number |
Issue Date |
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635445 |
May 2, 1967 |
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Foreign Application Priority Data
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May 3, 1966 [IT] |
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10068/66 |
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Current U.S.
Class: |
52/259; 52/432;
52/438 |
Current CPC
Class: |
E04C
2/06 (20130101); E04B 1/043 (20130101) |
Current International
Class: |
E04B
1/02 (20060101); E04B 1/04 (20060101); E04C
2/06 (20060101); E04b 002/10 (); E04b 005/02 () |
Field of
Search: |
;52/431,432,434,744,259,438,583 |
References Cited
[Referenced By]
U.S. Patent Documents
Foreign Patent Documents
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1,060,113 |
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1953 |
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FR |
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1,204,820 |
|
1959 |
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FR |
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812,368 |
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1951 |
|
DT |
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980,830 |
|
1965 |
|
GB |
|
594,138 |
|
1959 |
|
IT |
|
687,076 |
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1965 |
|
IT |
|
Primary Examiner: Sutherland; Henry C.
Parent Case Text
CROSS-REFERENCE TO RELATED APPLICATION
This is a continuation of application Ser. No. 635,445, filed May
2, 1967 and now abandoned.
Claims
I claim:
1. A building structure comprising in combination at least three
prefabricated panels including a vertical panel, a horizontal panel
having a plurality of parallel floor joists having reinforcing
structural metal rods positioned through said joists and extending
beyond the ends thereof and having substantially continuous bearing
projections at an edge thereof bearing on the upper edge of said
vertical panel, and a second vertical panel having its edge bearing
on the bearing projections of said horizontal panel, said bearing
projections being substantially perpendicular to said joists and
being substantially continuous but having recesses of limited
length provided therein positioned at the ends of said joists to
permit access to said rod ends, each of said vertical panels having
vertically positioned structural metal rods affixed therein and
extending therefrom, the rods of said first and second vertical
panels being affixed to each other within said recesses at said
joists thereby maintaining said panels in position.
2. A building structure according to claim 1 wherein the
reinforcement rods of said floor joists are connected to the
reinforcement rods of said vertical panels.
3. A building structure according to claim 1 wherein the upper edge
of said lower vertical panel is provided with a longitudinal groove
extending along the center thereof and adapted to have concrete
poured therein to provide locking engagement with another
panel.
4. A building structure according to claim 1 wherein said bearing
projections are positioned at the bottom portion of said horizontal
panels.
5. A building structure according to claim 1 wherein said
horizontal panels are provided with an additional recess for
introducing concrete filling material into the recesses of said
horizontal panel projections.
6. A building structure according to claim 1 wherein said vertical
panels are provided with an additional recess for introducing
concrete filling material into the recesses of said horizontal
panel projections.
Description
BACKGROUND OF THE INVENTION
The present invention relates to the connection of horizontal
panels and vertical panels in prefabricated buildings, and a
structure wherein the panels are joined and held statically prior
to being bonded together with a cementitious filler in the gap
between the panels.
SUMMARY OF THE INVENTION
The main object of the present invention is to join together all
the elements converging to the joint before casting, providing for
an efficient connection between the structural iron protruding from
each element and for the introduction of a longitudinal
reinforcement capable of absorbing the shearing stresses and of
providing a provisional connection adapted to supply such a load
bearing capacity as to use in practice the building parts, allowing
to go on erecting the elements of the subsequent stories without
need of pourings so that it is possible to erect on one another
several stories of the prefabricated building still postponing the
binding pourings.
Bearing of horizontal panel or floor on the load bearing or
vertical lower panel is arranged so as to validly support either
load due to the weight of the floor itself and its overload or load
transmitted to it through the projections on which the upper wall
is bearing and due to said upper wall, also in the presence of
several already erected stories.
Said projections are broken only at the structural irons of the
floor joists where on the contrary there is a recess for making
easier a greater overlap of the irons protruding from the floor,
that is, a better welding of said irons between each other.
Assuming that the lower vertical wall is already erected, floors or
the floor (in the case of a joint at the facade) are placed in
position, then the irons protruding from the floor are welded or
otherwise connected, the longitudinal iron or irons for absorbing
shearing stresses and for connecting all the elements are inserted
and thereafter laying of the upper vertical wall is effected.
When the three or four elements converging to the joint are in this
manner provisionally put in position, it is possible to provide for
welding or other efficient connection of the irons protruding from
the lower and upper parts of the converging walls.
Then it is possible to go on erecting the upper stories of the
buildings, since its bracing is already supplied by the auxiliary
erection elements. Pouring can therefore be effected either at once
or subsequently if there are any difficulties for adverse weather
conditions or other reasons.
The vertical panels or walls have along their upper edge, a
longitudinal central recess so as to allow entrance of mortar or
cement under the floor bearing elements, for warranting continuity
of the final bearing.
The floor edge is shaped so as to have lowered projections,
providing for supporting the upper vertical wall at a level which
is lower than the pouring plane, said projections also allowing
eventual thickness variations for correcting the laying level, and
are arranged so as to give a stable bearing capable of withstanding
the load of additional erected stories.
Recesses are also provided along the floor edge, at the
reinforcement irons of the load bearing joists, said recesses being
adapted to allow either a correct overlap of the irons for their
connection or welding, or the introduction of mortar or cement for
general connection and stiffening.
When flooring is incorporated in the pouring of the floor or
horizontal panel, in order to avoid discontinuance in said
flooring, the plane floor surface extends up to the close proximity
of the vertical wall and from this wall start both the recesses
corresponding to the load bearing joists and the lowered part of
the projections on which the upper vertical wall is supported.
When flooring is of a type which is to be applied on the floor,
both the recesses and the said lowered part will start at a
distance from the edge of the vertical wall, which is sufficient to
effect pouring.
The lower edge of the vertical wall converging to the joint, in the
case of flooring incorporated in the floor, i.e., of recesses and
lowered parts close to the lower edge of said upper vertical wall,
has a cavity at each recess of the floor, for allowing casting.
The height of this cavity generally does not exceed the height of
the socle applied to the wall, so that after filling it is
concealed by said socle.
When the flooring is applied on the floor, the outline of the lower
part of the wall obviously remains continuous and smooth, since
said cavities are provided in the floor and not in the wall.
Considering again the case of the cavities made in the vertical
walls, in order to obtain a greater spacing between each other
along said vertical panel, said cavities are made alternately on
the one or the other side of the panel.
Reinforcement of the vertical panels may be a conventional one,
that is having irons lying on a single vertical central plane and
protruding downwardly and upwardly from the lower and upper edges,
respectively, of the panel, or may be a particular type, i.e., with
vertical straight elements arranged alternately on two planes
inside the panel, which are adjacent to the one or the other
external surface or wall of the panel, so as to form a zigzag
reinforcement, and in this case panel reinforcements terminate near
the upper and lower edges of the panel. In view of this, continuity
of reinforcement at the joint is given by projecting lengths of
irons sufficiently overlapping at the joint for an efficient
connection and these irons are firmly connected to the inner
reinforcement of the vertical panel inside it, in one of the
various known manners applicable to reinforced concrete.
Since at the load bearing joists the supporting structure of the
floor or horizontal panel is weakened by said recesses, efficiency
of the bearing and continuity of the transmission of stresses is
assured by the longitudinal edge irons of the floor.
All the foregoing features are applicable either in a joint between
two vertical walls (a lower one and an upper one in respect of the
joint) and two floors, or in a joint to which only only floor is
converging together with the two vertical walls, e.g., along the
facades, and they are also applicable for both load bearing and
unloaded panels.
BRIEF DESCRIPTION OF THE DRAWINGS
For a better understanding of the hereinbefore mentioned objects,
features and advantages, some preferred embodiments of the
invention will be now described in detail, as nonlimiting examples
only, reference being made to the illustrative accompanying
drawings, in which:
FIG. 1 is a top plan view of the joint zone of two vertical panels
and two horizontal panels;
FIG. 2 is a sectional side view of the same joint zone of FIG. 1,
with the cavity for pouring made along the lower edge of the upper
vertical panel;
FIG. 3 is a view similar to FIG. 2, but showing a joint of two
vertical panels with one horizontal panel only;
FIG. 4 is a view similar to FIG. 2, but showing a cavity for
pouring made in the floor rather than in the vertical wall; and
FIG. 5 is a view similar to FIG. 4, but showing a joint of two
vertical panels with one horizontal panel only.
DESCRIPTION OF THE PREFERRED EMBODIMENTS
With reference first to FIG. 1, reference numerals 1 and 2 indicate
the two horizontal panels or floors, comprised of the conventional
load bearing joists 3 alternated with rows of tiles 4, said joists
3 being defined by protruding irons 5 situated in an outer
peripheral rib along an edge of panels 1 and 2, and which are
connected, preferably by welding 6, to the irons 5 of the
corresponding joists 3 of the other panel, at the joint zone
located at the vertical plane defined by the vertical panels, the
thickness of the lower one being indicated shadowed in the
figure.
Floors 1 and 2 have projections 7 on which the upper wall will
bear, and serving also for bearing in turn on the lower wall. These
projections 7 are broken by recesses 8 in the zone of the irons 5
of joists 3, at which also the irons 9 are protruding from the
lower wall. Said irons 9 will be connected and preferably welded to
the corresponding irons 9 of the upper wall.
Referring now also to FIG. 2, the lower wall 10 has a longitudinal
central lowered part of channel 11 allowing passage of mortar or
cement under projections 7 of the floors 1 and 2, the efficient
bearing of which is given also by the longitudinal edge irons 12 of
said floors.
From FIG. 2 it is also possible to see the insertion into the joint
of the longitudinal continuous iron 13, the lowered level of
projections 7 in respect of the walking or flooring plane of the
floors 1 and 2 for a perfect insertion into the joint of the upper
panel 14, and the interruption of the irons 15 of the inner
reinforcement of the vertical panels 10 and 14, which are not
protruding outside said panels.
It will also be noted that cavities 16 for introducing mortar or
cement into the joint are made along the wall of the upper panel 14
and arranged alternately along the two faces of the panel, so as to
fill said joint with concrete 17.
FIG. 4 is similar to FIG. 2, with the only difference being that
openings 18 for introducing casting are made in the floors 1 and 2,
rather than in the upper vertical panel 14, this being the case of
flooring applied on rather than incorporated in the floor.
FIGS. 3 and 5 are also similar to each other, excepting for
openings provided for concrete casting, which in FIG. 3, like in
FIG. 2, are shown to be made along the vertical panel 14', while in
FIG. 5, like in FIG. 4, are shown to be made in the floor 11.
Said FIGS. 3 and 5 also illustrate the joint of panels 10' and 14',
being in this case facade panels, with one floor 1 only. The system
by which joint is effected is exactly the same as that already
described with reference to FIGS. 2 and 4, while for the outer part
of the joint of the two vertical panels 10' and 14', reference may
be made to the copending application Ser. No. 635,446 filed by the
present applicant on even date hereof, having the title: "Method of
Connecting Prefabricated Panels at the Facades of a Prefabricated
Building."
In these figures it is possible to see some details of the vertical
panels 10' and 14', namely bands 19 and 20 of insulating materials,
the chute 21 for collecting water and moisture, the flexible and
compressible material 22 for the air and water seal, and the
eventual outer facing 23.
Having thus described the invention, it is apparent that the joint
according to the invention wholly solves the problem of connecting
horizontal panels and vertical panels of a prefabricated building,
giving the maximum static safety and allowing also stability of the
structure even before effecting casting, without need of any
falsework.
It is clear that several modifications, variants, additions,
replacements or removals of parts may be made to the elements of
the system hereinbefore disclosed, without departing, however, from
the spirit and scope of the invention or from the appended
claims.
* * * * *