US2033689A - Roof structure - Google Patents
Roof structure Download PDFInfo
- Publication number
- US2033689A US2033689A US30218A US3021835A US2033689A US 2033689 A US2033689 A US 2033689A US 30218 A US30218 A US 30218A US 3021835 A US3021835 A US 3021835A US 2033689 A US2033689 A US 2033689A
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- US
- United States
- Prior art keywords
- roof
- joists
- columns
- girders
- disposed
- 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 - Lifetime
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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
- E04B1/34—Extraordinary structures, e.g. with suspended or cantilever parts supported by masts or tower-like structures enclosing elevators or stairs; Features relating to the elastic stability
- E04B1/3416—Structures comprising mainly a central support column and a cantilevered roof
Definitions
- riihis invention relates to roof structures and especially to that type employed in conjunction with railroad platforms, train sheds', andr like structures.
- the object of the present invention is generally to improve and simplify the construction of roof structures such as used in conjunction with railroad platforms, train sheds, and the like; to provide a roof which may be constructed with considerable economy and reduction in weight and yet insure great strength and, .in particular, to provide a roof of the character described which is supported by a series of lo-ngitudinally extending joists; the joists being supported by girders arranged diagonally to the longitudinally extending joists and the girders being in turn supported by and forming the upper arms of a series of longitudinally spaced columns.
- Fig. 1 is a plan View of the structure showing the roof cover removed;
- Fig. 2 is a vertical cross section taken on line II-II of Fig. 1;
- Fig. 3 is an enlarged cross section taken on line III-III of Fig. 1;
- Fig. 4 is a cross section taken on line IV-IV of Fig. 2;
- Fig. 5 is an enlarged side elevation of one of the girder arms
- Fig. 6 is a cross section of line VI-VI of Fig. 5;
- Fig. 7 is a cross section taken on line VII- VII of Fig. 5;
- Fig. 8 is an enlarged side elevation of one of the roof joists.
- Fig. 9 is an end view of the same.
- A indicates a series of supporting columns, which are positioned on the longitudinal center line of the roof and which are spaced apart a considerable distance.
- girder arms B Welded, or otherwise secured, to the upper ends of the columns are girder arms B, which are diagonally positioned with relation to a series of joists indicated at C, D and E.
- the joists C, D and E extend longitudinally of the roof and are supported by the diagonally positioned girders B and on top of the joists is placed a roof covering, which may be constructed of steel or other suitable material, and which is generally indicated at F.
- the columns A are, in this instance, built upV and consist of vertically positioned angle bars 2 disposed at the corners to which arerwelded side plates 3 constructed of steel or a similar material.
- the girders are similarly built up, Vsee Figs. 5, 6 and '7, the upper and lower portions of the girders being formed of channel bars, as shown at and 5, to which are welded side plates 6 5; the girder arms being, in turn, welded or otherwise secured to the columns A as shown.
- the joists are also of the built up type and are best shown in Figs. 8 and 9. They consist of upper and lower T bars, such as indicated at 'l and 3, which are tied together by angle bars 9 diagonally disposed between the same.
- the diagonally disposed girder arms B are welded to the columns A and form an integral part thereof.
- the joists are, in turn, welded to the grder arms and if the steel roof is employed, it will be welded to the joists, thus providing a flat diaphragm to take up torsion and longitudinal or horizontal stresses. If other type of roof covering is used, separate bracing to stay the longitudinal joists must be provided at the top and bottom cords of the joists.
- the load of the roof covering is carried by the joists. These, in turn, transfer the load to the diagonalV girders and these, in turn, to the columns.
- the entire roof is built of structural members of materially reduced Weight and it has been found to decidedly increase the spacing between the supporting columns due to the diagonal placing of the girders with relation to the roof supporting joists.
- the economy of the structure is a function of span and load and the arrangement and spacing of the supporting columns.
- the girders By placing the girders at an angle of 45 with relation to the center line of longitudinal axis of the roof, the joist span is reduced and the size and weight of the individual joists is reduced.
- the combination and arrangement of the several members permit short spans, light load upon each member and consequently reduction in the size of the members, thereby lessening cost of the total construction.
- the arrangement of the diagonal girders provides a cantilever design with all loads carried directly to and centered upon the longitudinally spaced supports, to-wit, the columns.
- a structure of the character described comprising a roof covering, a plurality of joist members disposed longitudinally of the roof and supporting the roof covering, a plurality of spaced supporting columns disposed longitudinally of the roof, and a plurality of girder members secured to each column and diagonally disposed with relation to the joists, said joists being cut into sections and secured between the diagonally disposed girder members.
- a structure of the character described a plurality of spaced columns positioned on the longitudinal center line of a roof, a plurality of girder members secured on the upper end of each column and disposed on an angle of substantially 45 with relation to the longitudinal center line of the roof, a plurality of joist members secured between the girders and disposed parallel to the longitudinal center line of the roof, and a roof covering secured to the joists.
- a structure of the character described a plurality of spaced columns positioned on the longitudinal center line of a roof, a plurality of girder members secured on the upper end of each column and disposed on an angle of substantially 45 with relation to the longitudinal center line of the roof, a plurality of joist members secured between the girders and disposed parallel to the longitudinal center line of the roof, and a roof covering secured to the joists, al1 of said members being welded with relation to each other to form an integral structure.
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Rod-Shaped Construction Members (AREA)
Description
March n; ma. N, E. DAWSQN aww@ ROOF STRUCTURE INVENTOR.
Mwah mi, W36., l N. E. IDASON 'ROOF STRUCTURE Filed July 8, 1935 2 sheets-sheet 2 BY am ATTORNEY.
Patented Mar. 10, 1936 UNITE STATES PATENT vQFFICE 3 Claims.
riihis invention relates to roof structures and especially to that type employed in conjunction with railroad platforms, train sheds', andr like structures.
The object of the present invention is generally to improve and simplify the construction of roof structures such as used in conjunction with railroad platforms, train sheds, and the like; to provide a roof which may be constructed with considerable economy and reduction in weight and yet insure great strength and, .in particular, to provide a roof of the character described which is supported by a series of lo-ngitudinally extending joists; the joists being supported by girders arranged diagonally to the longitudinally extending joists and the girders being in turn supported by and forming the upper arms of a series of longitudinally spaced columns.
The structure is shown by way of illustration in the accompanying drawings, in which- Fig. 1 is a plan View of the structure showing the roof cover removed;
Fig. 2 is a vertical cross section taken on line II-II of Fig. 1;
Fig. 3 is an enlarged cross section taken on line III-III of Fig. 1;
Fig. 4 is a cross section taken on line IV-IV of Fig. 2;
Fig. 5 is an enlarged side elevation of one of the girder arms;
Fig. 6 is a cross section of line VI-VI of Fig. 5;
Fig. 7 is a cross section taken on line VII- VII of Fig. 5;
Fig. 8 is an enlarged side elevation of one of the roof joists; and
Fig. 9 is an end view of the same.
Referring to the drawings in detail, and particularly Figs. l and 2, A indicates a series of supporting columns, which are positioned on the longitudinal center line of the roof and which are spaced apart a considerable distance. Welded, or otherwise secured, to the upper ends of the columns are girder arms B, which are diagonally positioned with relation to a series of joists indicated at C, D and E. The joists C, D and E extend longitudinally of the roof and are supported by the diagonally positioned girders B and on top of the joists is placed a roof covering, which may be constructed of steel or other suitable material, and which is generally indicated at F.
The columns A are, in this instance, built upV and consist of vertically positioned angle bars 2 disposed at the corners to which arerwelded side plates 3 constructed of steel or a similar material. The girders are similarly built up, Vsee Figs. 5, 6 and '7, the upper and lower portions of the girders being formed of channel bars, as shown at and 5, to which are welded side plates 6 5; the girder arms being, in turn, welded or otherwise secured to the columns A as shown. The joists are also of the built up type and are best shown in Figs. 8 and 9. They consist of upper and lower T bars, such as indicated at 'l and 3, which are tied together by angle bars 9 diagonally disposed between the same.
In actual practice the entire structure is assembled by arc Welding, or the like, and it forms one complete unit. The diagonally disposed girder arms B are welded to the columns A and form an integral part thereof. The joists are, in turn, welded to the grder arms and if the steel roof is employed, it will be welded to the joists, thus providing a flat diaphragm to take up torsion and longitudinal or horizontal stresses. If other type of roof covering is used, separate bracing to stay the longitudinal joists must be provided at the top and bottom cords of the joists. The load of the roof covering is carried by the joists. These, in turn, transfer the load to the diagonalV girders and these, in turn, to the columns.
From the foregoing it will be noted that I have provided a roof which may be constructed with considerable economy and yet insure great strength. The entire roof is built of structural members of materially reduced Weight and it has been found to decidedly increase the spacing between the supporting columns due to the diagonal placing of the girders with relation to the roof supporting joists. The economy of the structure is a function of span and load and the arrangement and spacing of the supporting columns. By placing the girders at an angle of 45 with relation to the center line of longitudinal axis of the roof, the joist span is reduced and the size and weight of the individual joists is reduced. The combination and arrangement of the several members permit short spans, light load upon each member and consequently reduction in the size of the members, thereby lessening cost of the total construction. The arrangement of the diagonal girders provides a cantilever design with all loads carried directly to and centered upon the longitudinally spaced supports, to-wit, the columns.
The detailed construction of the columns, the girders, and the joists may, of course, be varied but the arrangement here disclosed is essential to economy of construction.
With a steel covered roof the gutter indicated at G will be arranged centrally of the roof. The gutter construction becomes exceedingly simple when reference is made to Fig. 3, and drainage may be taken care of at the ends or downwardly through the columns, and while this and other features of the invention have been more or less specifically described and illustrated, I wish it understood that various changes may be resorted to within the scope of the appended claims. Similarly, that the materials and inish of the several parts employed may be such as the manufacturer may decide, or varying conditions or uses may demand.
Having thus described my invention, what I claim and desire to secure by Letters Patent is:-
l. A structure of the character described comprising a roof covering, a plurality of joist members disposed longitudinally of the roof and supporting the roof covering, a plurality of spaced supporting columns disposed longitudinally of the roof, and a plurality of girder members secured to each column and diagonally disposed with relation to the joists, said joists being cut into sections and secured between the diagonally disposed girder members.
2. A structure of the character described a plurality of spaced columns positioned on the longitudinal center line of a roof, a plurality of girder members secured on the upper end of each column and disposed on an angle of substantially 45 with relation to the longitudinal center line of the roof, a plurality of joist members secured between the girders and disposed parallel to the longitudinal center line of the roof, and a roof covering secured to the joists.
3. A structure of the character described a plurality of spaced columns positioned on the longitudinal center line of a roof, a plurality of girder members secured on the upper end of each column and disposed on an angle of substantially 45 with relation to the longitudinal center line of the roof, a plurality of joist members secured between the girders and disposed parallel to the longitudinal center line of the roof, and a roof covering secured to the joists, al1 of said members being welded with relation to each other to form an integral structure.
NOBLE E. DAWSON.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US30218A US2033689A (en) | 1935-07-08 | 1935-07-08 | Roof structure |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US30218A US2033689A (en) | 1935-07-08 | 1935-07-08 | Roof structure |
Publications (1)
Publication Number | Publication Date |
---|---|
US2033689A true US2033689A (en) | 1936-03-10 |
Family
ID=21853125
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US30218A Expired - Lifetime US2033689A (en) | 1935-07-08 | 1935-07-08 | Roof structure |
Country Status (1)
Country | Link |
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US (1) | US2033689A (en) |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2636456A (en) * | 1950-03-24 | 1953-04-28 | Cooper Benjamin | Prefabricated canopy for toll collection booths |
US2959826A (en) * | 1956-09-04 | 1960-11-15 | Petroleum Dispense Master Ltd | Storage island motor fueler |
US3233561A (en) * | 1963-01-14 | 1966-02-08 | Stanray Corp | Freight vehicle |
US3242620A (en) * | 1963-11-12 | 1966-03-29 | Heinz W Kaiser | Cantilevered roof structure and supporting means therefor |
US3289360A (en) * | 1963-11-18 | 1966-12-06 | Fenestra Inc | Fabricated folded plate roof structure and support therefor |
US3296753A (en) * | 1963-05-13 | 1967-01-10 | Modenco Ltd | Prefabricated service building |
US3486343A (en) * | 1966-09-15 | 1969-12-30 | Brown & Root | Platform for drilling wells at water locations |
US3504638A (en) * | 1966-06-22 | 1970-04-07 | Nationwide Railroad Leasing In | Freight vehicle |
DE4020962A1 (en) * | 1990-06-30 | 1992-01-09 | Jodag Mobilsysteme Gmbh | ROOM CELL |
DE9113965U1 (en) * | 1991-11-09 | 1992-01-16 | Stewing Beton- Und Fertigteilwerk Gmbh & Co Kg, 4270 Dorsten, De |
-
1935
- 1935-07-08 US US30218A patent/US2033689A/en not_active Expired - Lifetime
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2636456A (en) * | 1950-03-24 | 1953-04-28 | Cooper Benjamin | Prefabricated canopy for toll collection booths |
US2959826A (en) * | 1956-09-04 | 1960-11-15 | Petroleum Dispense Master Ltd | Storage island motor fueler |
US3233561A (en) * | 1963-01-14 | 1966-02-08 | Stanray Corp | Freight vehicle |
US3296753A (en) * | 1963-05-13 | 1967-01-10 | Modenco Ltd | Prefabricated service building |
US3242620A (en) * | 1963-11-12 | 1966-03-29 | Heinz W Kaiser | Cantilevered roof structure and supporting means therefor |
US3289360A (en) * | 1963-11-18 | 1966-12-06 | Fenestra Inc | Fabricated folded plate roof structure and support therefor |
US3504638A (en) * | 1966-06-22 | 1970-04-07 | Nationwide Railroad Leasing In | Freight vehicle |
US3486343A (en) * | 1966-09-15 | 1969-12-30 | Brown & Root | Platform for drilling wells at water locations |
DE4020962A1 (en) * | 1990-06-30 | 1992-01-09 | Jodag Mobilsysteme Gmbh | ROOM CELL |
DE9113965U1 (en) * | 1991-11-09 | 1992-01-16 | Stewing Beton- Und Fertigteilwerk Gmbh & Co Kg, 4270 Dorsten, De |
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