CA1267265A - Space frame - Google Patents
Space frameInfo
- Publication number
- CA1267265A CA1267265A CA000493428A CA493428A CA1267265A CA 1267265 A CA1267265 A CA 1267265A CA 000493428 A CA000493428 A CA 000493428A CA 493428 A CA493428 A CA 493428A CA 1267265 A CA1267265 A CA 1267265A
- Authority
- CA
- Canada
- Prior art keywords
- transverse
- chords
- truss
- split
- connecting members
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Abstract
SPACE FRAME
Abstract A space frame is made from a plurality of truss modules and transverse chords. The truss modules and transverse chords are interconnected by fasteners contained therein. The truss modules have split longitudinal chords which are abutted to interconnect the truss modules. The transverse chords interconnect with the truss modules which are alternatingly arranged in two parallel planes to form the space frame matrix.
Abstract A space frame is made from a plurality of truss modules and transverse chords. The truss modules and transverse chords are interconnected by fasteners contained therein. The truss modules have split longitudinal chords which are abutted to interconnect the truss modules. The transverse chords interconnect with the truss modules which are alternatingly arranged in two parallel planes to form the space frame matrix.
Description
8~-3-055 CN -1-SPACE FRAME
This invention relates to space frames. More particularly, it relates to space frames of the double layer flat grid type having longitudinal and transverse chords interconnected by a plurality of web members.
Space frames are well known and extensively used in the construction of buildings such as exhibition halls, theatres and the like where large areas are required to be covered, free of supporting columns. For such purposes, architects commonly favor space frames of the double-layer flat grid type, such a structure having an upper square grid assembly of longitudinal and transverse chord members spaced above a lower square grid asse~bly of longitudinal and transverse chord members, intersections of the upper and lower grids being interconnected by diagonal struts or web members so that the space frame consists of a combination of square-base pyramidal shapes.
The economy of space frames of this type is particu-larly sensitive to the cost of the nodal connections of the members comprising the grid. A variety of connector components have been devised for interconnecting: at each node of the structure, the longitudinal and lateral chord members, and the dlagonal struts.
A typical way to make a space frame is to fabricate membars and joints as unique parts and bolt them together in the field. Some systems use pyramidal modules which are field assembled.
There are three main disadvantages to those systems:
l. Costs - Where you have a node and member connection, hardware costs are high.
This invention relates to space frames. More particularly, it relates to space frames of the double layer flat grid type having longitudinal and transverse chords interconnected by a plurality of web members.
Space frames are well known and extensively used in the construction of buildings such as exhibition halls, theatres and the like where large areas are required to be covered, free of supporting columns. For such purposes, architects commonly favor space frames of the double-layer flat grid type, such a structure having an upper square grid assembly of longitudinal and transverse chord members spaced above a lower square grid asse~bly of longitudinal and transverse chord members, intersections of the upper and lower grids being interconnected by diagonal struts or web members so that the space frame consists of a combination of square-base pyramidal shapes.
The economy of space frames of this type is particu-larly sensitive to the cost of the nodal connections of the members comprising the grid. A variety of connector components have been devised for interconnecting: at each node of the structure, the longitudinal and lateral chord members, and the dlagonal struts.
A typical way to make a space frame is to fabricate membars and joints as unique parts and bolt them together in the field. Some systems use pyramidal modules which are field assembled.
There are three main disadvantages to those systems:
l. Costs - Where you have a node and member connection, hardware costs are high.
2. Erection Time and Difficulty - The more pieces you have, the more field assembly time required.
3. Exposed Fasteners - They are unsightly and tend to corrode.
.
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The sp~ce frame of the present invention solves these problems by utilizing a prefabricates truss module in conjunction with transverse chords thereby reducing field assembly -time by minimizing the number of parts. By concealing the few fasteners inside the truss module chord connections, corrosion of the fasteners has been minimized.
Accordingly, the present invention provides a space frame comprising a combination of truss modules and transverse chords being interconnected by transverse fastening means; said transverse chords being parallel to each other; said truss modules being alternatingly by arranged in two parallel planes; each truss module com-prising a plurality of web membersl connecting members~
and split longitudinal chords; said connecting members having interface surfaces; said split longitudinal chords having interface surfaces; said web members and said connecting members being affixed to said split longi-tudinal chords to form said truss modules~ said trussmodules being connected to each other at said interface surfaces of said split longitudinal chords by said transverse fastening maans located within said truss modules interconnected with said transverse chords; and said transverse chords being connected at said first interface surfaces of said connecting members of each truss module by said transverse fastening means to fonn said space frame.
One embodiment of the invention will now be described, by way of example, with reference to the aocompanying drawings in which:
FIG. 1 is a plan view of a space frame o the present embodiment;
FIG. 2 is an elevational view looking along line 2-2 of FIG. l;
.
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FIG. 3 is an elevational view looking along line 3-3 of FIGo 1;
FIG. 4 is an exploded perspective segrnentary view of the space frame shown in FIG. 1 showing the truss module and transverse chord arrangement;
FIG. 5 is an exploded perspective segmentary view of the space frame encircled at 4 in FIG. 1 showing one manner of assembling web sections, split longitudinal chords, and a truss alinement member to form a truss module;
FIG. 6 is an exploded perspective segmentary view of the space frame encircled at 4 in FIG. 1, showing one manner of assembling a transverse chord and two truss modules with a fast~ner;
FIG. 7 is an exploded perspective segmentary view of the space frame encircled at 4 in FIG. 1 showing one manner o assembling a second transverse chord to the two truss modules and transverse chord shown in FIG. 6;
FIG. 3 is an exploded perspective segmentary view of the space frame encircled at 4 in FIG. 1 showing the com-pleted assembly of the space frame components in FIG . 7 .
FIG. 9 is an exploded perspective segmentary view of another embodiment of the space frame encircled at 4 in FIG. 1 showing a transverse chord, two truss modules and a transverse fastener arrangement.
For a better understanding of the present invention, together with other and further objects, advantages and capabilities thereof, reference is made to the following disclosure and appended claims in connection with the above-described drawing.
Shown in FIG. 1 is a space frame 10 comprising a combination of truss modules 20, 21 shown in FIGS. 2, 3 and 4 and transverse chords 30.
Shown in FIGo 4 truss module 20 has a plurality of web members 40, 41, split longitudinal chords 50, 51 and , ~
~L2~P7~:~S
connecting members 60, 61. Also shown in FIG. 4 is truss module 21 which has a plurality oE web membexs 42, 43, split longitudirlal chords 52, 53 and connecting members 62, 63. Shown in FIG~ 5 are web members 40, 41, split longitudinal chords 50, connecting members 60, 61 truss alinement member 70, longitudinal fasteners 71, 72 such as treaded rods with corresponding nuts 80, 81, 82, 83. The split longitudinal chords 50, such as "U" shaped channels, have ~irst interface surfaces 90 and inside surfaces 100.
Connecting plates 110, 111 which have two apertures each are affixed and perpendicular to the inside surfaces 100 of the split longitudinal chords 50.
The connecting members 60 and 61 have foreshorted split transverse chord portions 140, 141 and foreshortened split longitudinal chord portions 120, 121 which have affixed to them alinement members 130, 131 each having two apertures. The foreshortened split transverse chord portions 140~ 141 are affixed perpendicularly to the foreshortened split longitudinal chord portions 120, 121 so that the foreshortened split longitudinal chord portions 120, 121 will aline with the split longitudinal chords 50 and the foreshortened split transverse chord portions 140, 141 will aline with the transverse chord 30 shown in FIG. 6. The truss alinement member 70 has positioning sleeves 150 and 160. Positioning sleeve 160 coacts with the two connecting members 60 and 61 which have half moon openings 170, 171 respectively to receive the positioning sleeve 160O The connecting members 60, 61 have first interface surfaces 180, 181 and second interface surfaces 190, 191.
Shown in FIG. 6, the two split longitudinal chords 50; the two connecting members 60, 61 with webs members 40, 41 affixed to the connecting members 60, 61 and the truss alinement member 70 are assembled and interconnected by the longitudinal fasteners 71, 72 and their corresponding nuts 80, 81, 82, 83 to form a partial :::
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section of the truss modu:Le 20. Also shown in FIG. 6 is a partial section of another truss module 21 made up of split longitudinal chords 52 web members 42, 43, connecting members 62, 63 and a truss alinement member 73.
The split longitudlnal chords 52 have first interface surfaces 92 and the connecting members 62, 63 have Eirst interface surfaces lg2, 183 respectively, The two truss modules 20, 21 are interconnected to each other and the transverse chord 30 is interconnected to the truss module 20 by coacting transverse fastener 200 with treads 31 of transverse chord 30 shown in FIG~ 6.
Hex nut 210 welded to transverse fastener 200 provides a means for turning transverse fastener 200 to engage treads 31 with an appropriate tool. Positioning sleeve 150 of truss alinement member 70 provides a stop for hex nut 210 since hex nut 210 can not pass between longitudinal fasteners 71, 72 because there is not enough clearance between the longitudinal fasteners 71, 72 and hex nut 210.. Once transverse chord 30 is secured to truss module 20 by transverse fastener 200, truss module 21 is positioned to abut matching interface surfaces 90, 180, 181 with interface surfaces 92, 182~ 183 by sliding transverse fastener 200 through positioning sleeves 151, 161 of truss alinement member 73 and coacting truss alinement member 70 with truss alinement member 73 and securing truss module 21 by applying nut 220 to transverse fastener 200.
Shown in FIG. 7 is the engaging of a second transverse chord 30 to the assembly of the first transverse chord 30, truss module 20 and truss module 21 by rotating the second transverse chord 30 to engage treads 240 of the second transverse chord 30 with transverse fastener 200 until the second transverse chord positioning sleeve 250 coacts with truss module 21 forming a completed assembly shown in FIG. 8.
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Shown i.n FIG. 9 is another embodiment of the present invention. Truss modules 300, 310 interconnect with two transverse chords 30 to form a space frame 10. Two of the transverse chords 30 interconnect with truss module 300 and truss module 310 by the engagement of transverse fastener 500 having an affixed nut 510 to transverse chord 30 and the engagement of affixed nut 510 with truss module 300 followed by the engagement of nut 520 with truss module 310 and finally the engagement of the second transverse chord 30 with the transverse fastener 500 as shown in FIG. 9.
Truss module 300 comprises split longitudinal chords 305 which have foreshortened transverse chords 320 affixed perpendicular to them, and two web members 400, ~10 affixed to split longitudinal chords 305.
Truss module 310 comprises split longitudinal chords 315 which have foreshortened transverse chords 330 affixed perpendicular to them, and web members 420, 430 affixed to split longitudinal chords 315.
The transverse fastener 500 has a nut 510 affixed to it so when transverse fastener 500 enyages transverse chord 30 the affixed nut 510 engages the split longitudinal chord 305 forcing the first interface 350 of foreshortened transverse chord 320 to engage transverse chord 30.
~ russ module 310 engages truss module 300 at their respective first interface surfaces 330, 3~0 by the engagement of nut 520 against the split longitudinal chord 315 thereby forcing the two truss modules 300, 310 together and the second transverse chord 30 is attached rotating transverse chord 30 to engage threads 530 of the second transverse chord 30 with the transverse fastener 500 until the second transverse chora 30 is positioned to form a completed assembly.
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__ The sp~ce frame of the present embodiments eliminates most of the connecting hardware (bolts, nodes, pins, field welds) ty~ically required in other space frame systems.
The space frame truss modules of the present inven-tion can be pre-assembled by welding the parts together to form a truss of desired length followed by painting to obtain a high quality paint finish or the truss parts can be painted before shop assembling into the desired truss module lengths. These truss modules can be conveniently stacked for shipment thereby reducing shipping costs.
Typically, the truss of the present invention would have separate parts painted prior to assembly comprising the split longitudinal chords, truss alinement members and web member welded to the connecting members as one piece web sections each having one web and two connecting members, as illustrated in FIG. 4, or the web members can be affixed to the connecting members by other means such as holts after they are painted.
All the separate parts would then be assembled to make the desired truss module.
The transverse chord positioning sleeve i5 designed to prevent damage to the painted sur~aces of the truss module while assembling the pre-painted transverse chord as shown in FIG. 7 by providing a slight gap ~1/16") between the interface surface of the transverse chord and the second interface surfaces of the connecting member of the ~russ module. The transverse chord positioning sleeve is only required at one end of the transverse chord since 3U the other end of the transverse chord not having the positioning sleeve as illustrated in ~IG. 6 interconnects with the truss module without turning the trans~erse chord as is required during the final assembly shown in FIG. 7.
The longitudinal fasteners such as threaded roas, "U"
bolts, turn buckets, etc. and the transverse fasteners are -, 7~ 6~ri 84-3-055 CN -8~
hidden from view once the parts are assembled as shown in FIG. 7.
The space frame end portions can be finished off by bolting end channels having recessed bolt holes to achieve a space frame having an ethically pleasing appearance for less cost while maintaining the ability to carry the same applied loads as other space frame systems.
The material of construction vf the present invention can be of any suitable structural material such as steel, aluminum, magnesium, wood, etc.
The shape of the chords and web members can vary depending upon the structural and esthetic needs, i.e., such as round, square, elliptical, etc.
While there has been shown and described what is at present considered the preferred embodiment of the invention, it will be obvious to those skilled in the art that various changes and modifications may be made therein without departing from the scope of the invention as defined by the appended claims.
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.
.
-:
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The sp~ce frame of the present invention solves these problems by utilizing a prefabricates truss module in conjunction with transverse chords thereby reducing field assembly -time by minimizing the number of parts. By concealing the few fasteners inside the truss module chord connections, corrosion of the fasteners has been minimized.
Accordingly, the present invention provides a space frame comprising a combination of truss modules and transverse chords being interconnected by transverse fastening means; said transverse chords being parallel to each other; said truss modules being alternatingly by arranged in two parallel planes; each truss module com-prising a plurality of web membersl connecting members~
and split longitudinal chords; said connecting members having interface surfaces; said split longitudinal chords having interface surfaces; said web members and said connecting members being affixed to said split longi-tudinal chords to form said truss modules~ said trussmodules being connected to each other at said interface surfaces of said split longitudinal chords by said transverse fastening maans located within said truss modules interconnected with said transverse chords; and said transverse chords being connected at said first interface surfaces of said connecting members of each truss module by said transverse fastening means to fonn said space frame.
One embodiment of the invention will now be described, by way of example, with reference to the aocompanying drawings in which:
FIG. 1 is a plan view of a space frame o the present embodiment;
FIG. 2 is an elevational view looking along line 2-2 of FIG. l;
.
' `
.
~" ;- '' ' ' :
.
~2 672 ~
FIG. 3 is an elevational view looking along line 3-3 of FIGo 1;
FIG. 4 is an exploded perspective segrnentary view of the space frame shown in FIG. 1 showing the truss module and transverse chord arrangement;
FIG. 5 is an exploded perspective segmentary view of the space frame encircled at 4 in FIG. 1 showing one manner of assembling web sections, split longitudinal chords, and a truss alinement member to form a truss module;
FIG. 6 is an exploded perspective segmentary view of the space frame encircled at 4 in FIG. 1, showing one manner of assembling a transverse chord and two truss modules with a fast~ner;
FIG. 7 is an exploded perspective segmentary view of the space frame encircled at 4 in FIG. 1 showing one manner o assembling a second transverse chord to the two truss modules and transverse chord shown in FIG. 6;
FIG. 3 is an exploded perspective segmentary view of the space frame encircled at 4 in FIG. 1 showing the com-pleted assembly of the space frame components in FIG . 7 .
FIG. 9 is an exploded perspective segmentary view of another embodiment of the space frame encircled at 4 in FIG. 1 showing a transverse chord, two truss modules and a transverse fastener arrangement.
For a better understanding of the present invention, together with other and further objects, advantages and capabilities thereof, reference is made to the following disclosure and appended claims in connection with the above-described drawing.
Shown in FIG. 1 is a space frame 10 comprising a combination of truss modules 20, 21 shown in FIGS. 2, 3 and 4 and transverse chords 30.
Shown in FIGo 4 truss module 20 has a plurality of web members 40, 41, split longitudinal chords 50, 51 and , ~
~L2~P7~:~S
connecting members 60, 61. Also shown in FIG. 4 is truss module 21 which has a plurality oE web membexs 42, 43, split longitudirlal chords 52, 53 and connecting members 62, 63. Shown in FIG~ 5 are web members 40, 41, split longitudinal chords 50, connecting members 60, 61 truss alinement member 70, longitudinal fasteners 71, 72 such as treaded rods with corresponding nuts 80, 81, 82, 83. The split longitudinal chords 50, such as "U" shaped channels, have ~irst interface surfaces 90 and inside surfaces 100.
Connecting plates 110, 111 which have two apertures each are affixed and perpendicular to the inside surfaces 100 of the split longitudinal chords 50.
The connecting members 60 and 61 have foreshorted split transverse chord portions 140, 141 and foreshortened split longitudinal chord portions 120, 121 which have affixed to them alinement members 130, 131 each having two apertures. The foreshortened split transverse chord portions 140~ 141 are affixed perpendicularly to the foreshortened split longitudinal chord portions 120, 121 so that the foreshortened split longitudinal chord portions 120, 121 will aline with the split longitudinal chords 50 and the foreshortened split transverse chord portions 140, 141 will aline with the transverse chord 30 shown in FIG. 6. The truss alinement member 70 has positioning sleeves 150 and 160. Positioning sleeve 160 coacts with the two connecting members 60 and 61 which have half moon openings 170, 171 respectively to receive the positioning sleeve 160O The connecting members 60, 61 have first interface surfaces 180, 181 and second interface surfaces 190, 191.
Shown in FIG. 6, the two split longitudinal chords 50; the two connecting members 60, 61 with webs members 40, 41 affixed to the connecting members 60, 61 and the truss alinement member 70 are assembled and interconnected by the longitudinal fasteners 71, 72 and their corresponding nuts 80, 81, 82, 83 to form a partial :::
`"',' .' ' ' '' ~' '. ~, , :
`., . '' ' 26'~
section of the truss modu:Le 20. Also shown in FIG. 6 is a partial section of another truss module 21 made up of split longitudinal chords 52 web members 42, 43, connecting members 62, 63 and a truss alinement member 73.
The split longitudlnal chords 52 have first interface surfaces 92 and the connecting members 62, 63 have Eirst interface surfaces lg2, 183 respectively, The two truss modules 20, 21 are interconnected to each other and the transverse chord 30 is interconnected to the truss module 20 by coacting transverse fastener 200 with treads 31 of transverse chord 30 shown in FIG~ 6.
Hex nut 210 welded to transverse fastener 200 provides a means for turning transverse fastener 200 to engage treads 31 with an appropriate tool. Positioning sleeve 150 of truss alinement member 70 provides a stop for hex nut 210 since hex nut 210 can not pass between longitudinal fasteners 71, 72 because there is not enough clearance between the longitudinal fasteners 71, 72 and hex nut 210.. Once transverse chord 30 is secured to truss module 20 by transverse fastener 200, truss module 21 is positioned to abut matching interface surfaces 90, 180, 181 with interface surfaces 92, 182~ 183 by sliding transverse fastener 200 through positioning sleeves 151, 161 of truss alinement member 73 and coacting truss alinement member 70 with truss alinement member 73 and securing truss module 21 by applying nut 220 to transverse fastener 200.
Shown in FIG. 7 is the engaging of a second transverse chord 30 to the assembly of the first transverse chord 30, truss module 20 and truss module 21 by rotating the second transverse chord 30 to engage treads 240 of the second transverse chord 30 with transverse fastener 200 until the second transverse chord positioning sleeve 250 coacts with truss module 21 forming a completed assembly shown in FIG. 8.
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7~
Shown i.n FIG. 9 is another embodiment of the present invention. Truss modules 300, 310 interconnect with two transverse chords 30 to form a space frame 10. Two of the transverse chords 30 interconnect with truss module 300 and truss module 310 by the engagement of transverse fastener 500 having an affixed nut 510 to transverse chord 30 and the engagement of affixed nut 510 with truss module 300 followed by the engagement of nut 520 with truss module 310 and finally the engagement of the second transverse chord 30 with the transverse fastener 500 as shown in FIG. 9.
Truss module 300 comprises split longitudinal chords 305 which have foreshortened transverse chords 320 affixed perpendicular to them, and two web members 400, ~10 affixed to split longitudinal chords 305.
Truss module 310 comprises split longitudinal chords 315 which have foreshortened transverse chords 330 affixed perpendicular to them, and web members 420, 430 affixed to split longitudinal chords 315.
The transverse fastener 500 has a nut 510 affixed to it so when transverse fastener 500 enyages transverse chord 30 the affixed nut 510 engages the split longitudinal chord 305 forcing the first interface 350 of foreshortened transverse chord 320 to engage transverse chord 30.
~ russ module 310 engages truss module 300 at their respective first interface surfaces 330, 3~0 by the engagement of nut 520 against the split longitudinal chord 315 thereby forcing the two truss modules 300, 310 together and the second transverse chord 30 is attached rotating transverse chord 30 to engage threads 530 of the second transverse chord 30 with the transverse fastener 500 until the second transverse chora 30 is positioned to form a completed assembly.
- , .
~' ' ' `:`: ' .
' .
12672~, ~
__ The sp~ce frame of the present embodiments eliminates most of the connecting hardware (bolts, nodes, pins, field welds) ty~ically required in other space frame systems.
The space frame truss modules of the present inven-tion can be pre-assembled by welding the parts together to form a truss of desired length followed by painting to obtain a high quality paint finish or the truss parts can be painted before shop assembling into the desired truss module lengths. These truss modules can be conveniently stacked for shipment thereby reducing shipping costs.
Typically, the truss of the present invention would have separate parts painted prior to assembly comprising the split longitudinal chords, truss alinement members and web member welded to the connecting members as one piece web sections each having one web and two connecting members, as illustrated in FIG. 4, or the web members can be affixed to the connecting members by other means such as holts after they are painted.
All the separate parts would then be assembled to make the desired truss module.
The transverse chord positioning sleeve i5 designed to prevent damage to the painted sur~aces of the truss module while assembling the pre-painted transverse chord as shown in FIG. 7 by providing a slight gap ~1/16") between the interface surface of the transverse chord and the second interface surfaces of the connecting member of the ~russ module. The transverse chord positioning sleeve is only required at one end of the transverse chord since 3U the other end of the transverse chord not having the positioning sleeve as illustrated in ~IG. 6 interconnects with the truss module without turning the trans~erse chord as is required during the final assembly shown in FIG. 7.
The longitudinal fasteners such as threaded roas, "U"
bolts, turn buckets, etc. and the transverse fasteners are -, 7~ 6~ri 84-3-055 CN -8~
hidden from view once the parts are assembled as shown in FIG. 7.
The space frame end portions can be finished off by bolting end channels having recessed bolt holes to achieve a space frame having an ethically pleasing appearance for less cost while maintaining the ability to carry the same applied loads as other space frame systems.
The material of construction vf the present invention can be of any suitable structural material such as steel, aluminum, magnesium, wood, etc.
The shape of the chords and web members can vary depending upon the structural and esthetic needs, i.e., such as round, square, elliptical, etc.
While there has been shown and described what is at present considered the preferred embodiment of the invention, it will be obvious to those skilled in the art that various changes and modifications may be made therein without departing from the scope of the invention as defined by the appended claims.
' ,~ ' ~ , - - . , . ~: - .
: ~ ~ ' , - :. ' , :
.
Claims (7)
PROPERTY OR PRIVILEGE IS CLAIMED IS DEFINED AS FOLLOWS:
1. A space frame comprising a combination of truss modules and transverse chords being interconnected by transverse fastening means; said transverse chords being parallel to each other; said truss modules being arranged in two parallel planes; each truss module comprising a plurality of web members, connecting members, and split longitudinal chords; said connecting members having interface surfaces; said split longitudinal chords having interface surfaces; said web members and said connecting members being affixed to said split longitudinal chords to form said truss modules; said truss modules being connected to each other at said interface surfaces of said split longitudinal chords by said transverse fastening means located within said truss modules interconnected with said transverse chords; and said transverse chords being connected at said first interface surfaces of said connecting members of each truss module by said transverse fastening means to form said space frame.
2. A space frame in accordance with claim 1 wherein said transverse fastening means comprises a threaded rod coacting with a threaded aperture of each transverse chord;
said threaded rod having a nut affixed to the center portion of said threaded rod to effectuate a turning of said threaded rod with an appropriate tool.
said threaded rod having a nut affixed to the center portion of said threaded rod to effectuate a turning of said threaded rod with an appropriate tool.
3. A space frame in accordance with claim 1 wherein said split longitudinal chords being essentially "U"
shaped.
shaped.
4. A space frame in accordance with claim 1 wherein said web member is affixed to said connecting member by welding.
5. A space frame in accordance with claim 1 wherein said split longitudinal chords are affixed to said connecting member by a longitudinal fastening means.
6. A space frame in accordance with claim 1 wherein said connecting members are foreshortened transverse chord portions affixed perpendicularly to said split longitudinal chords and alined with said transverse chords; said foreshortened transverse chord portions coact with said transverse chords.
7. A space frame comprising a combination of truss modules and transverse chords being interconnected by transverse fastening means; said transverse chords being parallel to each other; said truss modules being arranged in two parallel planes; each truss module comprising a plurality of connecting members, web members being affixed to said connecting members, longitudinal fastening means, and split longitudinal chords; said connecting members having first and second interface surfaces; said split longitudinal chords having first interface surfaces, inside surfaces and connecting means; said connecting means being affixed and perpendicular to said inside surfaces of said split longitudinal chords; said connecting members having foreshortened split longitudinal chord portions and foreshorted split transverse chord portions; said foreshortened split, longitudinal chord portions having alinement members; said foreshortened split transverse chord portions being affixed perpendicularly to said foreshortened split longitudinal chord portions; said foreshortened split longitudinal chord portions alining with said split longitudinal chords and said foreshortened split transverse chord portions alining with said transverse chords; said truss alinement member having positioning sleeves; said positioning sleeves coact with said connecting members; said connecting members having apertures for receiving said positioning sleeves; said connecting members having first interface surfaces and second interface surfaces; said split longitudinal chords, said connecting members having web members affixed to said connecting members, and said truss alinement members being interconnected by said longitudinal fastening means to form said truss modules;
said truss modules being connected to each other at said first interface surfaces of said split longitudinal chords and said first interface surfaces of said connecting members of each truss module by said transverse fastening means located within said connecting members and being connected to said transverse chords at said second interface surfaces of said connecting members of each truss module by said transverse fastening means to form said space frame.
said truss modules being connected to each other at said first interface surfaces of said split longitudinal chords and said first interface surfaces of said connecting members of each truss module by said transverse fastening means located within said connecting members and being connected to said transverse chords at said second interface surfaces of said connecting members of each truss module by said transverse fastening means to form said space frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000493428A CA1267265A (en) | 1985-10-21 | 1985-10-21 | Space frame |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000493428A CA1267265A (en) | 1985-10-21 | 1985-10-21 | Space frame |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1267265A true CA1267265A (en) | 1990-04-03 |
Family
ID=4131675
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000493428A Expired CA1267265A (en) | 1985-10-21 | 1985-10-21 | Space frame |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA1267265A (en) |
-
1985
- 1985-10-21 CA CA000493428A patent/CA1267265A/en not_active Expired
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| DE4304479A1 (en) | Insertable corner piece for frame construction - has holes drilled in arms of standardised diameter and pitch for fixing bolts, all components being interchangeable |
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