Патент USA US2411651код для вставки
Nov. 26, 1946.-’y > w. D. DARBY ' 2,411,651 CATENARY ROOFLIKE CONSTRUCTION AND METHOD OF FORMING IT Filed Jan. 24, 1942 ‘ `1 2 Sheets-Sheet l ` *6 ¿7.4. y f: ` « Y ATTORNEYS. . .,Nov. 26, 1946. w. D. DARBY 2,411,651 f G_ATENARY ROOFLIKE CONSTRUCTION »ÁND METHOD FORMING IT Filed Jan. 24. 1942 ___@ 2 sheets-sheet 2 ' ` Y , INVE'TOR WML/,qm O. @Heey BY . _ » ATTORNEYS . 2,411,651 Patented Nov. 26, 1946 _UNITED vS'v'rATr; S PATENT oFFlCE i' '4 " CATENARY . METHOD or Four/[ING rr> William D. Darby, West Allis, wis. _ v .' >applicati-wn January 24, 1942, serial No. 428,046 ' (c1. 10s-_1) 9 Claims. ",My -invention relates to improvements in cate nary roof-,like constructions and methods of >forming them. struction elements from portions of which cables in a catenary array may extend for the purposes of my invention. Iterm them all suspensors since the -cables are in` catenary suspension be tween them. Furthermore, in the following de scription I use the term “array” to refer to an ' My construction andmethod may be> used for 4other building elements, but are principally useful ’ inbuilding roofs, and the description below will , ‘be'directed particularly to roofs. arrangement of cables in „catenary suspension be 'I'he object of my invention is to provide a tween suspensors, the cables being in such rela tion that a “sheet” of concrete or other construc .roof which may be supported entirely fromv side walls, and without requirement for central sup ports; to yprovide a roof .which will absorb shock >and will~ not collapse. :under bomb attack; to pro vide a roof-like structure in catenary suspension _between spaced suspensors; „and to yprovide a tion material laid :as a roof or floor will include the cables Within ,the thickness of the sheet. Applying the above Lterms to the drawings, it willr be seen that 'I have provided spaced sus pensors I0 in Fig.> 1 comprising walls I I and foot ings I2 in L-shape to sustain the stresses of .cables I3 of my catenary roof I4. The permanent structural elements of the roofincluding the :ar ray of cables I3, any suitable reenforcing means such as rods I6, and cementitious material I1 „method‘of- construction to meet .these vrequire 'ments which will simplify, cheapen and make more satisfactory a- roof-like area. Y - In the drawings: Fig. 1 Lis a verticalsection through my new> catenary roof and showing it suspended between side Wallsr supported upon footings in .accord with Y my invention. ~. , , Y p 2 ing or various spaced supports in many other con form the continuous slab-like roof or fl-oor ele ment of my invention. v The many catenary cables I3 extending be tween suspensors I0 are secured by any suitable A Fig. 2 is a detailed vertical section of la portion of my roof in :course of construction with my spe means, butvI have provided continuous-apertured cial forms in place'and .showing catenary cableY 25' plates vI 8 bearing upon the outside face of the top suspension of my roof from the top portion of the ` of each sus-pen-sor and each ,cable I3 has an eye I9 .spliced in the end «thereof for insertion through wall. ` Fig. 3 vis la, perspective 4of.aninclividual form used in the laying of concrete for my catenary roof. .n _’ Fig. 4 is a‘vertical ‘section'through contiguous portions of two forms Ilocked in position and sus Y pended below V«one of one` of the apertures in the plate I3 to receive an anchor pin 20. The pin bearing upon the mar gins of V»the aperture prevents the release of the cable, and Various cables in the array are of iden my Vcatenary cables. ¿tical length and tensile strength. ‘ Fig..5 isa plan .view of >an alternative »form The -array of catenary cables I3 having `»been Aof my> catenary roof as required for a .circular suspended between the suspensors I0, all of the construction work'to complete my roof is carried ‘ building or other structure 4or curved end for a »building or other structure. ' , Y ' out with the array of cables as the working sup e Fig. 6 is a section on line 6--6of Fig. 5. Fig. 7 is a section on line 'I-T of Fig. 5.' port] During the laying of concrete or other cementitious or moldable ,material to .complete l .Like parts are designated by the same refer- „u ence characters throughout the several views. My .invention is `ofprimary importance v'in struc roof »areal light planking maybe Ilaid on 'the 40 the array for runways for workmen. ’ ‘ tures where central-or- interm-ed-iately-spacedcol _ I provide surfaces for they support of the c'on-v crete inthe form of platforms 25 made up of a fumns or supporting'pillars or arches are detri suitable framework 26 overlaid by a sheet of ply mental to the uses to which the structure is to be ¿ wood Z'I or other suitable concrete form mate put, and where even the use of supporting struc 45 rial. Along the> margins of each platform 25 I ` tures during the .construction periodis undesir provide holes 28;l andas adjacent platforms 25 are brought into position beneath the catenary to my construction method in Whicheven during cables I3, I wire the platforms together and wire `»the period of construction there is no need for the 50 them in position below the catenary cables as building »of soaffolds -or temporary columns,4 pil shown most clearly in Fig. 4 where it will be seen n lars, arches, or trusses. ' ' that the wireA 2‘9Y inserted through the holes 28 . Inv the following description I »have chosen the extends Yabout the adjacent frame members oí 'word “suspensorïto designate the supporting the adjacent platforms v toV bind them, together structure for my -catenaryroof Suchza support and the ‘same length 'of Wire is of sufûcient'length' able or expensive.- My catenary-roof is subject ing structure may'be'the sidewalls ofthe build 2,411,651 4 to extend about one of the cables I3 to position the platforms approximately an inch and one half below the cable. Successive platforms 25 are secured together and hung from the cables catenary curved slab in building construction, said process including the placement of catenary supports, suspension of an array of flexible cat enary members between said supports, placing I3 so that the forms for the entire catenary area are supported from the cables in readiness beneath said array a plurality of forms in con tiguity and connecting said forms suspensarily to said catenary members whereby to preserve for the pouring of the roof sheet 30 of concrete. Any form of reenforcement may be laid upon the catenary curve, and depositing cementitious substance on the forms in suliicient quantity to the catenary cablesv I3 or beneath them, and the concrete is thenfpoured to any suitable depth, embed said catenary members, and permitting but I have found that about a three inch thick« ness of concrete of good quality makes a most the cementitious substance to harden thereabout in a curved form, wherein said catenary members acceptable catenary roof. When the concrete has set `and is sufficiently are maintained in catenary curvature and ten sion. cured, the wires 2B may be clipped to release the 15 4. In a building structure, the combination platforms 25, and it will be found that »my with supporting walls, of a roof entirely free of catenary roof thus constituted has superior support between said walls and comprising a qualities of stability and permanency. series of tension elements connected at their re Waterproof characteristics are hard-lf;7 to be spective ends to said walls and in catenary sus expected of any known terms of concrete or other pension therebetween, the several elements being cementitious or moldable material, and I, there~ surhciently flexible to assume a, catenary curve fore, 'provide the usual' flashings '31 and vrooiing under their weight and the weight of any uni. feit 32' 'to cover .the concrete or molded' vslab of formly applied load imposed thereon, and hav my catenary roof. Where buildings' or other structures have 25 ing an embedding sheet in which a number of >such elements are embedded, said sheet compris curved or circular en'dsie'il or'where buildings or i ing a cementitious substance molded upon said other structures are circular in their general elements while soft, said sheet being rigidifìed in setting, whereby to fix said elements in their ccn'ñguration as indicated 4in Figs. 5, 6,l and '7, „ne walls thereof provide suspensors lil, and ï provide central catenary plate, 42 which is lami nated .as `shown in Fig. '7 'to provide upper lami normal catenary curves. 30 nation 43 andv lower lamination t@ between which~ an anchor 'bolt 4'5 is extended 'so as yto pass through 'an eye of catenary vcable i3 thus com pleting a. 4cat'enary-“dished” roof "55 .following the practices of ,my invention. Obviously, lthe 35 5. The structure of claim 4, in whichsaid walls have integral noor sections extending toward each other beneath said tension elements sufñ ciently to hold said walls upright, said ii'o'or sec tions being spaced from each other. t Y 6, A building construction comprising heavy door sections spaced at opposite .sides of the platformfforms such as those shown at 25 in Fig. building, supporting walls integrally connected '3' must `be 'shaped to conform to the ‘reduire with said iioor sections at points remote from .the `ments of the curves. of> the -,catenaryl `array of cables, butin all other respects the ,principles of 40 inner margins of said floor sections whereby said walls are braced against tilting movement to my invention as shown in Figs. 1 to 4, inclusive, ward each other, a plurality of initially flexible are followed in the construction of the roof for a tension elements connected with said walls. and circular building. Centrally ‘of the lbuilding a suspended in catenary curves substantially un conductor pipe 'i6 for rainwater maybe included. Thus, it lwill "be seen that I' have -provided `a 45 supported between said walls, and a cementitious sheet in which the several elements are embedded floor or'roof construction in slab form without and whereby they are rigidiñed in their natural the -use of `staging or supporting elements other catenary curve assumed while flexible and prior than the suspensors which may form the perrna» to their ñxation by said sheet. nent> walls of the building yand that the entire 7. The process of` building a roo-f which lcom construction operation is ‘carried on `through the 50 prises supporting flexible reenforcing elements >use of catenary cables. at their ends while allowing such elements freely Y to assume natural catenary curves between the l. Acatenary area construction including pe points of support, embedding rthe flexible reen ripheral catenary supports, a `central catenary plate, flexible catenaryv‘members extending be« 55 >forcing elements in a cementitious- roofing sub stance while said substance is soft and'support tween. the plate and' _said peripheral support ing the weight of the cem-entitious substance on whereby to constitute an array' 'of catenary mem~ the reenforcing elements prior to the setting of fbers, yand cementitious material formed upon and such substance, wherebyA the reenf'orcing elements about saidA catenary members whereby to form a may automaticallyachieve their respective cat continuous rigid surface„ said' surface, plate, land I claim: 1 members being substantially wholly suspended; at the endsI or" said membersv from said' supports. 2. The process of forming a roof-like con enary curves accordi-ng to the disposition ,ofjsuch weight thereon, and allowing the cementitious substance to set, about the reenforcing elements and~ substantially' >continuouslyV therebetween, struction in building operations, said process in whereby to Yconstitute a roof wherein said ele cluding the erection of spaced catenary supports, suspension of a plurality of iiexible >catenary 65 ments are fixed in a natural catenary coniigura tion y¿freely assumed by the respective >elements tension members throughout the area and pre asfloaded. serving the catenary curve of each flexible mem~ .8. In a building, structure, the combination with ber adjacent one another in roof-like conñgura 4 tion, supporting forms from said .tension mem bers; and pouring thereon .cernentitious sub 7,0 'stance whereby to encase 'the catenary members and form a rigid roof-like structure in true catenary curve. >3. The processlof forming a. continuous, rigid, v_, _ exterior vertical supporting walls apertured near their upper margins and provided with metal plates -bearing against the outer` surfaces of Vsaid walls , and provided with aperturesV registering with those in the walls,.cable-like 'tension mem bers spanning `the space between said vwalls and extendingV through said. ap'ertured plates,` an 2,411,651 5 choring devices engaged with said tensioning members and bearing against said plates, and a rigid cementitious roof in which the tension members are embedded and having marginal con tact with said vertical walls, said tension mem bers being ñxed by the embedding cementitious ì roof in their natural catenary curves under the load of said roof. 9. In a circular building structure having Ver-_ tical walls and cable-like tension members an chored to said Walls and converging in catenary curves to the central portion of said structure, a metal plate connecting the convergent inner ends of said tension members across the central Ver tical axis of the building structure, and a rigid cementitious roof in which said tension members are embedded in mutually reenforcing relation, the outer margins of said rigid roof being sup ported by said vertical Walls and the extended ends of the tension members anchored thereto. WILLIAM D. DARBY.