US3362126A

US3362126A - Method for guiding floors during their lifting

Info

Publication number: US3362126A
Application number: US412995A
Authority: US
Inventors: Herolf Erik Gosta Vilhelm
Original assignee: Herolf Erik Gosta Vilhelm
Current assignee: ERIK GOSTA VILHELM HEROLF
Priority date: 1963-11-25
Filing date: 1964-11-23
Publication date: 1968-01-09
Anticipated expiration: 1985-01-09
Also published as: DE1534972A1; GB1086858A; AT264782B

Description

Jan. 9, 1968 E, G, v. HEROLF 3,362,126

METHOD FOR GUIDING FLOORS DURING THEIR LIFTING Filed Nov. 255, 1964 3 Sheets-Sheet l FIGJ f A Av v/Av/Av/,Q

AV @KSV/V Av A@ Av Av N wf/Av,

INVENTOR.

Jan. 9, 1968 E. G. v.v|n-:Ro| F 3,352J25 METHOD FOR GUIDING FLOORS DURING THEIR LIFTING Filed Nov. 2:5, 1964 5 Sheets-Sheet 2 FIGB IN VEN TOR.

Jan. 9, 1968 Y. E. G. v. HEROLF 3,362,126

METHOD FOR GUIDING FLOORS DURING THEIR LIFTING Filed Nov. 23, 1964 3 Sheets-Sheet 5 3,1.,5 O fzafzb IN VEN TOR.

United Sta-tes Patent O 3,362,126 METHOD FOR GUIDING FLOORS DURING THEIR LIFTING Erik Gsta Vilhelm Herolf, 10 Bankgatan, Sundsvall, Sweden Filed Nov. 23, 1964, Ser. No. 412,995 Claims priority, applilcatitsnli/Sg/eden, Nov. 25, 1963,

ABSTRACT F THE DISCLOSURE A novel method of providing lateral guidance to floors Iduring ltheir lifting Ifor the erection of build-ings, by means `of a removable, vertically extended, stiifening structure.

This invention relates to a method 1of providing lateral guidance |to iloors dur-ing their lifting for the erection of buildings by using `a vertically extended structure.

In conventional methods for lifting lloors attention was not paid suii'ciently to providing lateral stabilization. Acccrding to one method, however, the llo ors are Ilifted while being 4guided by constructions remaining as permanent components in the building, as for example elevator shafts and staircases which in such la case fare erected prior 'to the lifting of the floors. According to another method, the yguidance is effected by iron stands which are not intended to remain as permanent components in 'the building but can be placed in the spaces provided to serve for staircases and elevator shafts.

This invention is substantially characterized in that the method comprises a first operation phase wherein a laterally stiifening structure is lanchored in a cast base plate `and serves as guiding means during the lifting ci the basement lfloor and of one or some more iloors until said floors have reached their level of mounting and `are supported by vertical building elements, and la second operation phase wherein 'the structure is separated from the base plate and is secured to the next ilo'or to be lifted with which it follows during its lifting while at t-he same time being guided by the basement floor and the irs't floor or, alternatively by the irst doors already in position.

This invention relates to `a novel method of providing lateral guidance to floors during 'the erection of building structures. The method essentially comprises forming a base plate, providing a vertically extending guiding and stilfening structure, ancho-ring the lower end of said stiffening structure in said base plate, forming at least one iloor on said base plate with portions `thereof engaging 'the stilening structure in guiding relationship, sequentially lifting each iloor to its final position in the building and positioning substantially vertically extending supporting means intermediate the floors, forming at least lone additional floor yon 'the uppermost supported floor with portions engaging the stiifening structure in guiding relationship wherein said s'tiifening structure is of -a length 'at least equal t-o the *thickness 'of the floor stack increased by two storey heights, separating the lower end of the stiffening 4structure from the base plate and attaching the upper end of the stiffening structure to the upper surface of the uppermost of said additional floors and raising the lowerm'ost additional floor into position with the stitfening structure being guided by the previously supported floors.

The method according to the invention will be described in greater detail in the following, reference being had to the accompanying drawings whereon AFIGS. 1-4 show in a schematical manner diferen't operation phases of the method, and

FIGS. 5 and 6 show by way 'of example some placements of the structure.

ICC

According to the method of the invention, the irst step is 'to pour in conventional manner a base plate 9 and to pour thereon the basement iloor 2a. Prior to the lifting `of the latter by jacks in known manner, a first part of a laterally stitfening structure 3 is mounted on the base plate on the foundation, preferably of storey height. The said structure may comprise two separate sec-tions each placed on one of the outer surfaces of the basement iloor 2a, or the structure may comprise different parts placed in openings provided in 'the basement iloor 2a as shown in FIG. 5, or i-t may be a single section dis-posed directly in 'the centre of the basement oor as shown in FIG. 6. This structure and these structures respectively may, for example, Ibe iron pillars adapted to take up possible lateral forces in the floors. When the laterally stitfening structure sections are placed at the edges of the iloors, iron guides Aare bolted in the iloors to guide the floors along 'the structure sections.

After the basement floor 2a is lifted 'by jacks to its level of mounting, forms are made for the future staircases, elevators shafts and/or stiffening walls 6 whereafter these elements are poured. As an alternative, the said elements may be pre-fabricated units to be mounted in their positions. This part of the method is shown in FIG. l.

T-he basement floor 2a being fixed in the same manner, a plurality `of floors 2b is poured upon the same, whereafter the jacks 1 are placed below the basement -floor 2a yand provided with extension rods to extend through openings in the basement floor. The jacks 'and rods press the iloor stack upwards by one storey, after the laterally

stilfening structure

3, 4 has been lengthened by an additional storey height. The form side which has no contact with the floors 2b at the walls of the stiffening elements, tha-t is staircase walls elevator shaft walls and/ or `other walls is lifted in connection with the floor lifting in that it is anchored in the floor stack.

After 'the lifting lof the iioor stack, the lowermost iloor is ixed on bearing elements whereafter laterally stiffening walls 6 are poured a further storey height. The described part of the method constitutes the first operation phase of the method `and is carried out according to FIGS. 2 and 3 until the structure comprises the three

parts

3, 4 and 5. As appears from the said figures, laterally stiftening walls `are poured and inserted respectively at the end of said operation between the base plate 9 and the basement o'or 2a as well as between the latter and the rst of the floors 2b.

Thereafter follows the second operation phase of the method wherein the

structure

3, 4 and 5 is separated from its foundation on the Ibase plate 9 land lsecured to the uppermost floor 2b Yof the remaining floor stack, for example by means of a beam 8. Upon lifting the iloor stack the structure follows along lone storey, as shown in FIG. 4, and is guided by the stiffened part of the building, i.e. both in the basement floor 2a and in the first hoor 2b.

The pouring and insert-ing respectively of laterally stiiening walls 6 is then carried out in the above-described way. As the erection of the building continues, the structure follows along storey by storey until |the building is completed. The structure can then be dismantled for use on another building site.

The laterally stilfening structure need not be higher than the thickness of the floor stack increased by two storey heights. The structure may, of course, be higher in cases where it is practical `and necessary, for example, to pour the walls one storey later than described above. The structure may also be constructed such, that walls for two s'toreys can be poured simultaneously, for example for lthe second and third storey, for the fourth and fifth storey, and so on. The same constructions for lateral stiifening may also be used even 4if no permanent walls are poured before the iloors were lifted to full height in all storeys. In such a case, however, the laterally stiftening constructions must `be made substantially stronger than otherwise required.

What I claim is:

1. A method of providing lateral guidance to oors during 'their lifting for the erection of buildings comprising providing a vertically extending `guiding and stiifening structure, forming a base plate, anchoring the lower end of said stiiening structure in said base plate, forming at least `one door on said hase plate with portions engaging said structure in guiding relationship, sequentially lifting oor to its nal position in the ybuilding construction and positioning substantially vertically extending supporting means intermedi-ate said iioors, forming at least one additional oor on the uppermost supported lfloor with portions engaging said stiliening structure in guiding relationship, said stifening structure being of a length -at least equal to the thickness of the floor stack increased by two storey heights, separating said lower end of said stileuing structure from said base plate and attaching the upper en'd of said stiffening structure to the upper surface of fthe uppermost of said additional floors, and raising the lowermost additional floor into position with `said stiifenying structure -being guided by the previously supported Iiioors.

2. A method in accordance with claim 1 wherein a plurality of additional floors are yformed on said uppermost supported iloor, further including repeating the steps of positioning substantially vertically extending supporting means intermediate the uppermost supported tloor and the lowermost unsupported oor, and raising the next lowermost additional floor into position with said stitening structure being guided by at least the uppermost supported oor.

'3. A method in accordance with cl'aim f1 wherein after said base plate -is formed two oors are cast thereon with portions engaging said stilfening structure in guiding relationship, said stiffening structure being at least equal to the distance between said base plate and the upper of said `two floors in the iin'al position of the same in said building construction plus the thickness of: said additional floors, and said stitening structure being guided by at least two previously supported floors during the lifting of said additional floors.

4. A method in accordance with claim 1 wherein after said base plate is lformed, one floor is cast thereon with portions engaging said stiening structure, lifting said one door to its inal position in the building construction, positioning substantially vertically extending supporting means intermediate said base plate and said one Hoor, casting a plurality of additional oors on said one iloor with portions engaging said structure, adding an additional section to said stiffening structure to form an extended stitening structure, said extended stiffening structure being of a length at least equal to the thickness of the floor stack increased by two sto-rey heights, lifting said additional floors 4to locate said rst additional floor in its final position in the building construction, positioning substantially vertically extending supporting means intermediate said one oor and said first additional oor, separating said lower end of said extended stiffening structure from said base plate and attaching the upper end of said additional stiliening structure to the upper surface of the uppermost of said additional floors and lifting said additional floors into their iinal position in the building construction one storey at a time in the same manner with said extended stiftening structure being guided by at least the last two previously supported floors.

5. A method in accordance with claim 1 wherein said supporting means are walls successively cast in situ.

y6. A method in accordance with clairn 1 wherein said supporting means are staircases successively cast in situ.

7. A method in accordance with claim v1 wherein said supporting means are prefabricated units.

8. A method in accordance with claim 1 wherein said stiifening structure includes two sections placed on the opposite outer edegs of the iloors.

I9. A method yin accordance with claim 1 ywherein said stiffening structure includes at least one section placed in openings den'ed in the floors.

References Cited UNITED STATES PATENTS 3,210,903 10/ 1965 Herolf 52-745 3,254,466 6/ 1966 Von Heidenstam 52-745 3,283,468 y11//1966 Herolf 52-745 FOREIGN PATENTS 1,349,473 12/1963 lFrance.

181,110 l0/1962 Sweden.

HENRY C. SUTHERLAND, Primary Examiner.

M. O. WARNECKE, Assistant Examiner.