US3744200A - Precast concrete building construction - Google Patents

Precast concrete building construction Download PDF

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US3744200A
US3744200A US00837986A US3744200DA US3744200A US 3744200 A US3744200 A US 3744200A US 00837986 A US00837986 A US 00837986A US 3744200D A US3744200D A US 3744200DA US 3744200 A US3744200 A US 3744200A
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slabs
tendons
vertical
legs
guideways
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E Rice
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    • 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
    • E04B1/348—Structures composed of units comprising at least considerable parts of two sides of a room, e.g. box-like or cell-like units closed or in skeleton form
    • E04B1/34815—Elements not integrated in a skeleton
    • E04B1/34823—Elements not integrated in a skeleton the supporting structure consisting of concrete
    • 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
    • E04B1/04—Structures consisting primarily of load-supporting, block-shaped, or slab-shaped elements the elements consisting of concrete, e.g. reinforced concrete, or other stone-like material
    • E04B1/06—Structures consisting primarily of load-supporting, block-shaped, or slab-shaped elements the elements consisting of concrete, e.g. reinforced concrete, or other stone-like material the elements being prestressed
    • 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
    • E04B1/20—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of concrete, e.g. reinforced concrete, or other stonelike material
    • E04B1/22—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of concrete, e.g. reinforced concrete, or other stonelike material with parts being prestressed

Definitions

  • E04b l/343, E04c 3/20 buikiing units which are positioned side by side and [58] Field of Search ..52/227-229, 223, 236, end to end as we” as stacked to form a multistory 133435, 1 502 structure; the units being secured together by tendons freely threaded through horizontal and vertical chases References Clled provided in the building units, placed under tension UNITED STATES PATENTS and anchored at their extremities.
  • the building units 1,477,665 12/1923 Richman 52/227 y also include Precast beams containing longitudinal 2,340,263 1 1944 Dodson 52/227 at na y t nd ns anch r d at th end xtremities of 3,260,025 7/1966 Van der Lely.... 52/228 each building unit, the units being bolted in end-to-end 3,503,170 3/1970 Shelley 52/227 relation.
  • the crack may widen sufficiently that the localized stress in the reinforcing or tendon exceeds ultimate strength of the steel and a rupture occurs.
  • the building structure may be so arranged that the horizontal and vertical tendons may be removed and the building units separated for removal to another site, reassembled and reconnected by tension elements.
  • the precast building units may include longitudinally extending beams containing tendons disposed in catenary like contour, anchored at the ends of the building units and free to slide therebetween, said units being bolted endto-end.
  • FIG. I is a plan view, showing a deck of the building construction as adapted for use as a multistory parking structure.
  • FIG. 2 is an enlarged fragmentary sectional view, taken in part through 2-2 of FIG. 1 rotated 90, the
  • FIG. 3 is a further enlarged fragmentary sectional view, taken through 33 of FIG. 2, portions being shown in plan.
  • FIG. 4 is an enlarged sectional view, taken through 44 of FIG. 2.
  • FIG. 5 is another sectional view, taken through 55 of FIG. 2.
  • FIG. 6 is a fragmentary elevationsl view, taken from 66 of FIG. 2.
  • FIG. 7 is an enlarged fragmentary sectional view, taken through 7-7 of FIG. 1.
  • FIG. 8 is a fragmentary plan view of the portion of the building structure shown in FIG. 7.
  • FIG. 9 is,an enlarged fragmentary sectional view, taken through 99 of FIG. 1.
  • FIG. 10 is a side view of one of the anchor plates.
  • FIG. 11 is a fragmentary perspective view, showing one of the building units used in the building construction.
  • FIG. 12 is a fragmentary perspective view, showing another of the building units.
  • FIG. 13 is a fragmentary sectional view, showing another of the building units.
  • FIG. 14 is a fragmentary perspective view, showing a supporting leg and a portion of the foundation as well as a vertical tendon, the leg being separated from the foundation to illustrate the construction.
  • FIG. 15 is an enlarged fragmentary sectonal view, taken through 15-15 of FIG. 2.
  • FIG. 16 is an enlarged fragmentary sectional view, taken through 16-16 of FIG. 2.
  • FIG. 17 is an enlarged fragmentary sectionalview, taken through l7l7 of FIG. 2.
  • the building construction illustrated is a multilevel parking garage, and is constructed principally by the assembly of three sets of building units.
  • the first set of building units, designated 1, includes an elongated rectangular slab or deck member 2, formed of reinforced concrete.
  • the slab may also be termed a floor-ceiling slab, as it forms the ceiling of the level below and the floor of the level above.
  • Transverse beams 4 are provided at the ends of the slab. Extending downwardly from the beams, at the corners of the slab, are legs 5.
  • the slab is provided with a set of transverse tendon passages 6.
  • the legs are provided with vertical tendon passages 7.
  • the longitudinal beams 3 are provided with tendon passages 8.
  • tendon passages may be provided in each beam and may merge at their central portions.
  • the passages are curved, essentially in catenary profile.
  • Each passage 8 receives a tendon 9, in the form of a steel cable, which extends through anchor plates 10 set in the ends of the longitudinal beams.
  • the anchor plates are provided with tapered openings which receive anchor wedges 11 that grip the ends of the tendons.
  • the passages 8 may be formed in several ways, such as by 'a sleeve or liner cast in place, or by a rod of elastomeric material capable of being extracted after the concrete has been cast and set; or, the tendon itself may be coated with a lubricant, or encased in a sleeve. Regardless of the method employed, the tendon remains slidable in the passage so that the tendon may be posttensioned by use of conventional pulling tools applied to the exposed extremities of the tendons. Later, the tendons are cut so that grout 12 may fill the recess in which the anchor plate is located.
  • each anchor plate may be provided with a lifting boss 13, which may be grasped by a suitable lifting fitting, or may be internally screwthre'aded to receive a lifting bolt.
  • the protruding ends may receive lifting plates 14, held in place by removable clamping collars 15, all as indicated in FIG. 16.
  • Each of the second set of building units, designated 16, includes a beam 17, similar in depth but of greater width than the longitudinal beams of a first'building unit.
  • Each beam 17 is provided with longitudinal tendon passages, tendons and anchor plates as described in connection with the longitudinal beam 3.
  • Each beam 17 is provided with end legs 18, similar to the corner legs 5, but having approximately twice'the cross section.
  • each beam 17 is provided with side notches l9, intended to accommodate the ends of third building units 20.
  • Each building unit includes a slab 2, corresponding to the first building unit, as well as longitudinal beams 3; that is, the transverse end beams 4 and corner legs 5 are omitted. Also, the ends of thelongitudinal beams are notched, as indicated by 21, in order to fit the notches 19 of the building unit 16.
  • the three sets of building units are assembled by placing members of the first set of building units in endto-end and side-by-side relation. It is impractical to make the building units 1 of sufficient width to provide space for vehicles between the corner legs at each end. However, the length of each building unit 1 is sufficient to accommodate two rows of parked cars and a passageway therebetween.
  • the second building units 16 are placed in lateral alignment with the adjacent ends of selected building units 1, and the building units 20 are placed between the beams l7 of the building units 16 and suitably secured thereto, thereby forming a deck which is a continuation of the deck formed by the slabs 2 of the first building units, as shown in FIGS. 1, 2 and 3.
  • the first building units are secured in end-to-end relation by' tie bolts 22,. which extend through openings 23 provided in the end beams 4.
  • the tie bolts receive load distributing flanges 24.
  • grout 25 is forced in the space between the ends of adjacent units. It is preferred to provide such grout space rather than placing the building units in abutting relation as such spacing compensatesfor tolerance variations.
  • the building units 1 as well as the building units 20 are placed in side-by-side relationship in such a manner that their transverse tendon passages 6 are placed in alignment.
  • the passages 6 may be circular, but to provide tolerance compensation, they may be oval or rectangular.
  • Each aligned row of passages 6 receives a transverse tendon 27, which extends continuously from one outside edge to the opposite outside edge of the building structure.
  • the building units forming such edges are provided with exposedmetal channel members 28 bonded to the concrete as well as secured by suitable reinforcing, not shown.
  • Each end channel is perforated to receive an end of the corresponding tendon.
  • An anchor plate 29, perforated to receive the corresponding tendon, overlies the end channel 28.
  • Mounted on each anchor plate or arranged to bear thereagainst' is a wedge collar 30, which receives a set of conical wedges 31 adapted to grip and hold the ten. don under tension.
  • the sides thereof are not placed in mutual contacting relation, but space is provided therebetween to compensate for tolerance variations. Such spaces also aid in insertion or threading of the tendons 27 into the passages 6. For, in the case of partial misalignment, the end of the tendon may be guided into alignment with a succeeding passage.
  • grout 32 is forced into the spaces between the sides of the building units. Temporary forms may be inserted upwardly between adjacent longitudinal beams 3 so as to retain the grout 32 in the space provided. It should be noted that the tendons 27 are thoroughly greased or otherwise coated so that any bond between the tendons 27 and the grout is minimized.
  • the grout 25 and 12 preferably contains an expansive cement, such as the cement disclosed in US. Pat. Nos. 3,215,701 and 3,303,037.
  • the grout mixture is compounded so that it swells slightly or at least compensates for any shrinkage that would otherwise occur so that on tensioning the tendons 27, there is no significant reduction in the overall distance between the extreme building units.
  • Each anchor plate 29 may also serve to support in part a fence wall unit 33, each fence wall unit consisting essentially of a rectangular concrete slab having sockets 34 to clear the wedge collars 30, and also provided with mounting bolts 35 which are received in slots provided in upper portions of the anchor plates 29, which portions project above the slab 2.
  • mounting plates identical to the anchor plates 29 may be used and may be bolted to the end channel members 28, as indicated in FIG. 9.
  • the buidling units legs 5 and 18 of the lower or first level of building units rest on appropriate foundation piers 36, indicated in FIG. 14.
  • anchor plates 38 are fitted over the protruding upper ends of the vertial tendons and appropriate wedge collars 39 and wedges 40 are applied, and the tendons are tensioned in a conventional manner. It is preferred, of course, to place the anchor plates 38, wedge collars 39 and wedges 40 below the upper surface of the upper deck of the structure so that the upper deck is free for use for parking purposes.
  • the parking structure includes appropriately located ramps 41 which may be formed of modifications of the building units described, or may be conventional in construction. Also, suitable stairways 42 and elevator shafts 43 are provided.
  • each of the buiding units contain conventional reinforcing, not shown, in addition to the tendon reinforcing described.
  • the building units may contain expansive cement capable of stressing the reinforcing, or to compensate for shrinkage, or conventional cement may be used. While use in the individual units of reinforcing bonded to the concrete does create a localized stress condition in the reinforcing, the problem is not as severe as would be the case with the building as a whole.
  • the building construction may be disassembled. That is, the tendons 27 may be removed as well as the bolts 22, and the top anchors 39. Then, the building units may be removed, those units having legs being raised from the tendons 37.
  • the grout 25 and 32 is first removed, or, if it is intended to provide for later disassembly, the contacting surfaces of the building units are provided with a suitable parting agent; or, a non-adhering material is substituted for the grout. In this regard, it should be noted that the grout is maintained under compression so that there is no need for a bond with the building units.
  • a known property of conventional concrete has been that if a concrete slab is sufficiently compressed in two directions within the plane defined by the slab, the slab becomes waterproof; that is, water does not penetrate from one surface through the slab to the opposite surface.
  • the required compressive force has been determined to be about 300 psi in each direction.
  • Such compression has been attained by sets of tendons extending in each direction, which have been posttensioned. If expansive cement, such as that disclosed in US. Pat. Nos. 3,215,701 and. 3,303,037, is used, part of such compression is attained by the interaction of the reinforcing as more fully disclosed in the aforementioned patent application, Ser. No. 662,602. In this case, less supplementary posttensioning force, for example, is required in order to attain the waterproof condition.
  • each building unit may be post-tensioned at any convenient time; further, the building units may be stored for a long period before being assembled into the building structure and subjected to the transverse compression force exerted by the tendons 27 and when finally comp-essed in the order of 300 psi in the two axes, the slab becomes watertight.
  • the grout if this includes a conventional portland cement base with or without expansible ingredients, it has been found that if compressed in the order of 300 psi in a single transverse axis between the ends or the sides of the slabs, it as well as the interfaces between the grout and the slabs becomes watertight.
  • a multiple story garage structure comprising:
  • each unit of the second set including a beam and a leg at each end thereof, the members of the second set of building units being disposed in longitudinal alignment with the rows of legs of the first set at the ends thereof to define transversely extending corridors connecting the access lanes;
  • a third set of precast concrete building units each unit of the third set including a slab and at least one beam thereunder, the ends of the members of the third set of building units resting on the beams of the second set of building units and continuing in side-by-side and end-to-end relation from the slabs of the first set of building units;
  • a building construction as defined in claim 1, wherein:
  • said building units are adapted to be stacked to form a multideck structure; b. said legs are provided with vertical tendon guideways adapted to be aligned when said building units are stacked;
  • said securing means includes vertical tendons slidably received in said aligned vertical guideways, and anchor means are provided at the extremities of said tendons to hold said vertical tendons under tension, thereby to exert a compressive force between the vertically stacked building units, said vertical tendons being freely movable in their respective passageways between their respective anchors whereby tension loads thereon are uniformly distributed along the length of each vertical tendon.
  • each slab defines a plurality of horizontal tendon guideways, disposed in alignement with guideways of adjacent slabs, when the slabs are assembled in side-by-side relation;
  • said securing means includes tendons slidably received in the guideways of a plurality of slabs, and anchors at the remote ends of the tendons to hold said tendons under tension thereby to exert a compressive force between slabs located between said anchors, said tendons being freely movable in said guideways between said anchors whereby tension loads are uniformly distributed along the length of each tendon.
  • the slabs of said building units are initially disposed in spaced relation;
  • grout including expansive cement occupies said spaces to exert an expansive force between said slabs
  • a horizontal multiple deck construction comprismg: 7 a. a set of elongatedconcrete slabs for each deck arranged in coplanar relation with their side edges in contiguous relation to form a plurality of continuous junctures between their side edges;
  • each set of slabs having a plurality of horizontal transversely extending parallel guideways disposed in alignment across the junctures and through a plurality of slabs;
  • the legs extending between the decks being disposed in vertically aligned groups and each leg forming a juncture with a slab of the deck below;
  • each group of legs, the corresponding ends of the beams and the slabs therebetween having vertical guideways extending from the piers therethrough;
  • a multiple story building construction comprising:
  • each unit including a horizontal rectangular concrete slab having a major longitudinal and a minor lateral dimension underlying supporting beams extending longitudinally of the slabs between the ends thereof and spaced vertical concrete legs fixed to the ends of the slabs;
  • foundation means serving to engage and support the lower ends of the vertical legs
  • the units of the second story likewise each including a horizontal rectangular concrete slab having a major longitudinal and a minor lateral dimension underlyingsupporting beams extending longitudinally of the slabs between the ends thereof and spaced vertical concrete legs fixed to the end portions of the slabs;
  • the four units of the second story being assembled with their slabs in a common horizontal plane and with the adjacent ends of the slabs in abutting relation on said first vertical planes and the longitudinal edges of adjacent slabs being in abutting relation on said second vertical plane;
  • the vertical legs for the upper story having their lower ends seated upon end portions of an underlying slab and in vertical alignment with legs for the lower story;
  • the slabs of the units forming both the lower and upper stories having aligned horizontal tendon accommodating guideways extending laterally through the same from one remote longitudinal side edge of a slab to the remote other side edge;
  • each slab of the units forming both the lower and upper stories having a vertical tendon accommodating guideway extending through the same and through a corresponding vertical leg;
  • tensioned horizontal tendons extending through the horizontal guideways of the slabs and tendon anchors at the remote side edges of the slabs thereby serving to apply forces in compression to the slabs causing mutual engagement of their inter mediate longitudinal edges;
  • tensioned vertical tendons extending through the aligned vertical guideways and tendon anchors in the foundation means and upper story serving to apply forces in compression to the vertical legs and to the corresponding portions of the slabs engaged thereby;
  • a multiple deck structure comprising:
  • each module including a horizontally extending slab, at least one beam extending between the ends of the slab, at least onevertically extending leg adjacent each end of the beam;
  • each module having a vertical tendon guideway extending continuously through each leg, beam and slab, the modules being stacked with their respective vertical guideways in vertical alignment, and the modules having areas of mutual engagement between the extremities of their legs and the slabs of vertically adjacent modules;
  • the lower tendon anchoring means includes foundation piers disposed under the legs of the lowermost modules
  • a horizontal deck construction comprising:
  • the slabs having a plurality of parallel, aligned tendon guideways extending continuously through the set of slabs transverse to said junctures;
  • anchoring means engaging the tendons and fixed to the slabs at-the ends of the guideways the anchoring means maintaining predetermined tension loads on the tendons and corresponding compression loads in the slabs, including the junctures therebetween, of sufficient magnitude to secure the slabs against relative movement at their junctures thereby to cause the slabs to resist deflection forces as a unit;
  • said anchoring means are removable from the tendons and the tendons are removable from the slabs to permit disassembly of the slabs thereby to permit removal to another site for reassembly.
  • a. supporting legs extend vertically from the ends of each beam to form with the set of beams and corresponding set of slabs a set of coplanar building units;
  • a first set of tendon anchoring means underlie the supporting legs of the lowermost set of building units
  • junctures are formed between the members of each stack of building units
  • the supporting legs, beamsand slabs of each stack of building units have vertical tendon guideways extending continuously between the tendon anchoring means and the top of the multiple story structure;
  • a plurality of vertical tendons are secured to the first set of tendon anchoring means and are slidable in the vertical guideways;
  • a second set of tendon anchoring means en gage the upper ends of the tendons and are fixed to the top of the multiple story structure to maintain vertical tension loads on the tendons and corresponding vertical compression loads on the members of each stack of building units as well as the junctures therebetween to secure the members against relative movement at their junctures thereby to cause the members of each stack of building units to resist deflection forces as a unit.
  • the tendons dons are removable therefrom, and the tendons are removable from the slabs to permit disassembly; b. at least the second set of anchoring means for the vertical tendons are removable therefrom to permit whereby the building units may be removed to another site for reassembly.

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  • Architecture (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Conveying And Assembling Of Building Elements In Situ (AREA)
  • Reinforcement Elements For Buildings (AREA)
  • Joining Of Building Structures In Genera (AREA)
US00837986A 1969-06-02 1969-06-02 Precast concrete building construction Expired - Lifetime US3744200A (en)

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Cited By (19)

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US3835601A (en) * 1971-08-31 1974-09-17 E Kelbish Modular construction system
US3879914A (en) * 1969-09-23 1975-04-29 Hans Haller Method of making a platform structure
US3882649A (en) * 1971-03-05 1975-05-13 Francis Mah Interlocked modular building system
US3903667A (en) * 1973-06-18 1975-09-09 Lev Zetlin Associates Inc Structural floor system accomodating multi-directional ducts
US4023315A (en) * 1968-07-26 1977-05-17 Elcon A.G. Prefabricated buildings
US4059931A (en) * 1976-01-29 1977-11-29 Mongan William T Building framing system for post-tensioned modular building structures
US4068425A (en) * 1977-04-05 1978-01-17 Permacrete Products Corporation Modular mausoleum
US4144692A (en) * 1977-05-03 1979-03-20 Jonas Gerald L Building unit
EP0009515A1 (en) * 1978-09-05 1980-04-16 Ballast-Nedam Groep N.V. Method of erecting a building structure and building structure erected by the same
US4211043A (en) * 1978-01-06 1980-07-08 Coday Jerry F Precast concrete building module form
US4368607A (en) * 1978-05-16 1983-01-18 Boonman Cornelis J F Anchor construction for prestressing members
US4640070A (en) * 1986-03-21 1987-02-03 Ian Moffat Method of adding extra floors on existing buildings
WO1993003243A1 (en) * 1991-08-06 1993-02-18 Christian Memorial Cultural Center Modular crypt assembly
US5660020A (en) * 1994-08-26 1997-08-26 Engineering Certifiers Limited Method of construction using pre-cast floor units
US6389764B1 (en) * 1998-02-27 2002-05-21 Freyssinet International (Stup) Method for making prefabricated structural elements, and prestressed structure produced with the structural
US20040065030A1 (en) * 2002-10-04 2004-04-08 Sergio Zambelli Device for connecting a beam to pillars or similar supporting structural elements for erecting buildings
US20080016805A1 (en) * 2006-07-19 2008-01-24 Richard Walter Truss lock floor systems and related methods and apparatus
US20230030089A1 (en) * 2016-10-26 2023-02-02 Innovative Design Solutions Llc Modular Precast Concrete Water Storage Device and System
EP4291734A4 (en) * 2021-02-12 2025-01-29 Lodestar Structures Inc. MODULE FOR USE IN THE MANUFACTURE OF A PREFABRICATED STRUCTURE, MANUFACTURING METHOD THEREFOR AND TRANSPORT FRAME

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GB2117025A (en) * 1982-03-17 1983-10-05 R E P S Y Sa Load bearing structure for buildings
FR2550816B1 (fr) * 1983-08-18 1986-01-31 Freyssinet Int Stup Procedes d'assemblage par precontrainte d'elements prefabriques dont certains au moins sont en beton, et constructions obtenues par de tels procedes
DE3932058A1 (de) * 1989-09-26 1991-04-04 Martin Becker Verfahren zum herstellen vorgefertigter flaechen-bauelemente
CN103659351B (zh) * 2012-09-07 2016-12-28 安溪县景宏技术咨询有限公司 锁紧机构
GB201813794D0 (en) * 2018-08-23 2018-10-10 Laing Orourke Plc Precast building construction system

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DE865652C (de) * 1949-08-30 1953-02-02 Hermann Josef Boeyng Bauwerk, insbesondere Wohnhaus, Garage, Behelfsheim od. dgl.
US3260025A (en) * 1960-05-30 1966-07-12 Lely Nv C Van Der Precompressed vertically stacked, prefabricated building elements
US3495367A (en) * 1965-12-21 1970-02-17 Hideya Kobayashi Precast lightweight reinforced concrete plank
US3503170A (en) * 1968-08-14 1970-03-31 Shelley W Shelley Modular post-tensioned overlapped staggered building construction

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US1477665A (en) * 1920-06-16 1923-12-18 Wallace C Richman Concrete building
US2340263A (en) * 1941-01-18 1944-01-25 Leon A Dodson Wall construction
DE865652C (de) * 1949-08-30 1953-02-02 Hermann Josef Boeyng Bauwerk, insbesondere Wohnhaus, Garage, Behelfsheim od. dgl.
US3260025A (en) * 1960-05-30 1966-07-12 Lely Nv C Van Der Precompressed vertically stacked, prefabricated building elements
US3495367A (en) * 1965-12-21 1970-02-17 Hideya Kobayashi Precast lightweight reinforced concrete plank
US3503170A (en) * 1968-08-14 1970-03-31 Shelley W Shelley Modular post-tensioned overlapped staggered building construction

Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4023315A (en) * 1968-07-26 1977-05-17 Elcon A.G. Prefabricated buildings
US3879914A (en) * 1969-09-23 1975-04-29 Hans Haller Method of making a platform structure
US3882649A (en) * 1971-03-05 1975-05-13 Francis Mah Interlocked modular building system
US3835601A (en) * 1971-08-31 1974-09-17 E Kelbish Modular construction system
US3903667A (en) * 1973-06-18 1975-09-09 Lev Zetlin Associates Inc Structural floor system accomodating multi-directional ducts
US4059931A (en) * 1976-01-29 1977-11-29 Mongan William T Building framing system for post-tensioned modular building structures
US4068425A (en) * 1977-04-05 1978-01-17 Permacrete Products Corporation Modular mausoleum
US4144692A (en) * 1977-05-03 1979-03-20 Jonas Gerald L Building unit
US4211043A (en) * 1978-01-06 1980-07-08 Coday Jerry F Precast concrete building module form
US4368607A (en) * 1978-05-16 1983-01-18 Boonman Cornelis J F Anchor construction for prestressing members
EP0009515A1 (en) * 1978-09-05 1980-04-16 Ballast-Nedam Groep N.V. Method of erecting a building structure and building structure erected by the same
US4640070A (en) * 1986-03-21 1987-02-03 Ian Moffat Method of adding extra floors on existing buildings
WO1993003243A1 (en) * 1991-08-06 1993-02-18 Christian Memorial Cultural Center Modular crypt assembly
US5243794A (en) * 1991-08-06 1993-09-14 Christian Memorial Cultural Center Modular crypt assembly
US5660020A (en) * 1994-08-26 1997-08-26 Engineering Certifiers Limited Method of construction using pre-cast floor units
US6389764B1 (en) * 1998-02-27 2002-05-21 Freyssinet International (Stup) Method for making prefabricated structural elements, and prestressed structure produced with the structural
US20040065030A1 (en) * 2002-10-04 2004-04-08 Sergio Zambelli Device for connecting a beam to pillars or similar supporting structural elements for erecting buildings
EP1405958A3 (en) * 2002-10-04 2004-12-08 Sergio Zambelli Device for connecting a beam to pillars or similar supporting structural elements for erecting buildings
US7287358B2 (en) 2002-10-04 2007-10-30 Sergio Zambelli Device for connecting a beam to pillars or similar supporting structural elements for erecting buildings
US20080016805A1 (en) * 2006-07-19 2008-01-24 Richard Walter Truss lock floor systems and related methods and apparatus
US20230030089A1 (en) * 2016-10-26 2023-02-02 Innovative Design Solutions Llc Modular Precast Concrete Water Storage Device and System
EP4291734A4 (en) * 2021-02-12 2025-01-29 Lodestar Structures Inc. MODULE FOR USE IN THE MANUFACTURE OF A PREFABRICATED STRUCTURE, MANUFACTURING METHOD THEREFOR AND TRANSPORT FRAME
AU2022220762B2 (en) * 2021-02-12 2026-04-09 Lodestar Structures Inc. Module for use in preparing a prefabricated structure, method for manufacturing same and transport frame

Also Published As

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NL7008003A (https=) 1970-12-04
DE2025471A1 (de) 1970-12-10
JPS5030933B1 (https=) 1975-10-06
CA918948A (en) 1973-01-16
FR2049750A5 (https=) 1971-03-26
GB1287399A (en) 1972-08-31

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