US3634989A - Modular tower - Google Patents
Modular tower Download PDFInfo
- Publication number
- US3634989A US3634989A US3764A US3634989DA US3634989A US 3634989 A US3634989 A US 3634989A US 3764 A US3764 A US 3764A US 3634989D A US3634989D A US 3634989DA US 3634989 A US3634989 A US 3634989A
- Authority
- US
- United States
- Prior art keywords
- tubes
- legs
- connector
- tower
- abutting
- 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
Links
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H12/00—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures
- E04H12/02—Structures made of specified materials
- E04H12/08—Structures made of specified materials of metal
- E04H12/10—Truss-like structures
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T403/00—Joints and connections
- Y10T403/57—Distinct end coupler
- Y10T403/5741—Separate screw or pin-type connections
Definitions
- ABSTRACT A prefabricated modular tower structure in which the ends of each of the legs of one module are joined to the legs of an adjacent module by an integral angularly disposed connector tube adapted to receive two bolts.
- the invention relates generally to a modular tower structure and more particularly to a modular tower which utilizes at the ends of each leg angularly disposed tubes which are bolted together to fasten the several modules of the tower together.
- the tower is completely built in lengthwise sections of predetermined height in a prefabricating shop and then shipped to a tower erection site where the sections are assembled, one on top of another, until a desired tower height is obtained.
- Typical patents describing this type tower are: U.S. Pat. Nos. 2,267,638; 2,305,563; 2,462,429; 2,893,521; 3,360,288; 3,156,329; 3,365,853.
- the other method is to transport the tower in small basic components in unassembled condition then, at the job site, assemble the components into a tower.
- Typical patents describing this type are U.S. Pat. Nos. 2,014,784 and 2,060,436.
- towers which are adapted to carry heavy loads are generally constructed, in the field, from precut structural steel form.
- towers intended for supporting lighter loads may be prefabricated in modular units and these modules assembled at the site of the tower construction.
- Another object is to provide a connector joint for a modular tower which avoids passing bolts or other fasteners through the tower legs in a radial direction.
- Still another object is to provide a prefabricated modular tower, the connector joints of which are as sturdy as the legs to the modular sections.
- a further object is to provide a modular tower connector joint which has a minimum amount of play.
- a still further object is to provide a modular tower connector joint which is easy to assemble whereby the amount of assembly labor needed is diminished.
- Another object is to provide a modular tower structure which may be assembled at the erection site by simply connecting the modules with bolts.
- Another object is to provide a modular tower structure which, during assembly, has a self-aligning ability by reason of the unique connector joint.
- Another object is to provide a modular tower structure in which the modules are easily transportable with minimum use of space.
- Another object is to provide a modular tower structure which is economical to manufacture.
- the above and other objects not specifically enumerated are efficiently attained by providing on the ends ofeach leg of the tower an angularly disposed connector tube through which a bolt or other similar fastening means is then passed and tightened.
- the connector tube is preferably welded on the end of the tower leg and so angularly disposed with respect to the leg of the adjacent module and its connector tube so that the bolt may be easily slipped through the cavity of both connector tubes.
- FIG. 1 is a broken front view of an erected modular tower illustrating the manner in which the connectors of the present invention operate. 9
- FIG. 2 is a top view of FIG. 1.
- FIG. 3 is a cross-sectional view of one connected joint through line 3-3 of FIG. 2.
- FIG. 4 is an exploded cross-sectional view of a second embodiment of a joint.
- Each section or module 12 may be of any desired length, usually 8 or 10 feet, so that handling and transporting of the module is made easier.
- the tower sets on a suitable base 14, usually a sound concrete footing of customary design. Its upper end supports a superstructure 16 which may be adapted to support a platform, an antenna system, or a light system or any other high device.
- the tower may be supported by a plurality of standard guy wires (not shown) which may be attached, in any suitable manner, to the tower at various points and to a suitable anchoring means in the ground.
- Each module 12 has a plurality of vertical legs l8 which may either be tubular or solid.
- the module shown in FIG. 1 has three legs in horizontal cross section through the tower which form an equilateral triangle (see FIG. 2.). It is also possible to use a greater number of legs, such as four, five, six, etc. with appropriate change in the cross-sectional configuration such as a rectangle, pentagon, hexagon, etc.
- truss chords 20 are formed into a plurality of W, X or Z shapes which are welded or otherwise attached to legs 18.
- each leg 18 of each module 12 have a connector tube 22 secured thereto, usually by welding.
- the tube 22 of the upper module has the same angular relationship as the mating connector tube of the lower module (see FIGS. 3 & 4) whereby a bolt 24 may be simply passed therethrough to join the upper and lower modules together.
- a nut 26, with or without washers 28 and 30, is threaded on the bolt until the two connector tubes are tight.
- the tubes 22 are shown with abutting end faces 32 angular to a horizontal plane.
- FIG. 4 illustrates the situation where the connector tubes 22 have abutting end faces 34 which are in a horizontal plane.
- the connector tube end face of FIG. 3' is preferred because, in erecting the modules, one upon the other, the angled end faces tend to center" the modules with respect to the one below it. Then by mere insertion of one bolt 24 in one of the mating connector tubes of that module, the entire module is stabilized until the other bolts are inserted in the other connector tubes.
- the cavity in the connector tubes 22 and the diameter of bolts 28 may be of any reasonable dimension.
- a 9i:- inch bolt is used with a l3/32-inch inner diameter connector tube.
- a 36-inch bolt has a sufficiently large root area that it can safely be tightened to develop approximately 12,000 pounds tension. This is normally sufficient to resist normal wind or other loads on a tower.
- a skeleton tower comprising a plurality of vertically stacked, modular sections, each section including a plurality of vertical legs spaced about the periphery thereof, the vertical legs of one section being in aligned, end-abutting relation with the legs of the adjacent section, means connecting the legs together at the abutting ends, said means comprising a connector tube fixedly connected to each end of each leg, the
- said fastening means comprises nut and bolt combination including a bolt positioned on the interior of the pairs of connector tubes, and a nut lockingly engaging one extremity of said bolt so as to be maintained in frictional engagement with one end of one of said tubes, whereby said tubes are maintained in locked, aligned engagement with one another.
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Joining Of Building Structures In Genera (AREA)
Abstract
A prefabricated modular tower structure in which the ends of each of the legs of one module are joined to the legs of an adjacent module by an integral angularly disposed connector tube adapted to receive two bolts.
Description
1] ire States Patent ogers [151 3,634,989 1 Jan. 1, 1972 [54] MODULAR TOWER [72] Inventor: Cyril B. Rogers, 3940 Dora] Drive, Tampa, Fla. 33614 [22] Filed: Jan. 19, 1970 [21] Appl. No.: 3,764
[52] 11.8. CI ..52/584, 52/637, 52/726, 287/54 [51] Int. Cl ..1E04h 12/10 [58] Field of Search ..287/54 E, 54 B, 53.5, 54 C; 52/726, 638, 637, 641, 640, 645, 646, 584; 182/178 [5 6] References Cited UNITED STATES PATENTS 1,846,772 2/1932 Wallis ..52/637 2,857,994 10/1958 Sheard..... 3,354,591 11/1967 Fuller ..52/8l FOREIGN PATENTS OR APPLICATIONS 88,747 7/1958 Netherlands 287/54 B 384,769 12/1932 Great Britain .287/54 C 431,576 1948 Italy ..52/638 765,287 1934 France 287/54 F 1,263,311 1961 France ..52/637 1,408,330 1965 France ..52/8l Primary Examiner-Henry C, Sutherland Att0rney-Stefan M. Stein [57] ABSTRACT A prefabricated modular tower structure in which the ends of each of the legs of one module are joined to the legs of an adjacent module by an integral angularly disposed connector tube adapted to receive two bolts.
4 Claims, 4 Drawing Figures PATENTED JMII 8 B72 INVENTOR. CYRIL B. ROGERS ATTORNEY.
MODULAR TOWER The invention relates generally to a modular tower structure and more particularly to a modular tower which utilizes at the ends of each leg angularly disposed tubes which are bolted together to fasten the several modules of the tower together.
With the ever increasing use of communication systems, lighting systems, scaffolds, etc., there is an established need for a lightweight tower structure which is strong, yet requires minimal storage and transportation volume and can be rapidly and sturdily erected. Presently there are two methods of assembling and erecting towers.
In one method, the tower is completely built in lengthwise sections of predetermined height in a prefabricating shop and then shipped to a tower erection site where the sections are assembled, one on top of another, until a desired tower height is obtained. Typical patents describing this type tower are: U.S. Pat. Nos. 2,267,638; 2,305,563; 2,462,429; 2,893,521; 3,360,288; 3,156,329; 3,365,853. The other method is to transport the tower in small basic components in unassembled condition then, at the job site, assemble the components into a tower. Typical patents describing this type are U.S. Pat. Nos. 2,014,784 and 2,060,436.
The particular form which the tower (or scaffold) takes is generally dictated by its intended use. For instance, towers which are adapted to carry heavy loads are generally constructed, in the field, from precut structural steel form. However, towers intended for supporting lighter loads may be prefabricated in modular units and these modules assembled at the site of the tower construction.
In modular construction, it is common practice to join two sections together by passing bolts, rivets or other similar fastening means through the tubular legs to join them together. The legs commonly overlap each other for a short distance. This type of joint is objectionable in that the holes for the bolt passage usually weaken the legs, particularly when they are placed in tension. Sometimes the fasteners are tightened to such an extent that the tubular leg is flattened. This is particularly true where the tubular leg has a relatively thin wall. Such deformation causes the leg to assume an oval or other cross section and this reduces, in at least one direction, the effective radius of the leg, thus reducing its strength in column action.
It is therefore an object of this invention to provide a novel modular structure which maintains the full working strength of its legs.
Another object is to provide a connector joint for a modular tower which avoids passing bolts or other fasteners through the tower legs in a radial direction.
Still another object is to provide a prefabricated modular tower, the connector joints of which are as sturdy as the legs to the modular sections.
A further object is to provide a modular tower connector joint which has a minimum amount of play.
A still further object is to provide a modular tower connector joint which is easy to assemble whereby the amount of assembly labor needed is diminished.
Another object is to provide a modular tower structure which may be assembled at the erection site by simply connecting the modules with bolts.
Another object is to provide a modular tower structure which, during assembly, has a self-aligning ability by reason of the unique connector joint.
Another object is to provide a modular tower structure in which the modules are easily transportable with minimum use of space.
Another object is to provide a modular tower structure which is economical to manufacture.
Other objects of the invention will in part be obvious and will in part appear hereinafter.
The above and other objects not specifically enumerated are efficiently attained by providing on the ends ofeach leg of the tower an angularly disposed connector tube through which a bolt or other similar fastening means is then passed and tightened. The connector tube is preferably welded on the end of the tower leg and so angularly disposed with respect to the leg of the adjacent module and its connector tube so that the bolt may be easily slipped through the cavity of both connector tubes.
The invention accordingly comprises the features of construction, combination of elements, and arrangement of parts which will be exemplified in the construction hereinafter set forth, and the scope of the invention will be indicated in the claims.
For a fuller understanding of the nature and objects of the invention, reference should be had to the following detailed description in which:
FIG. 1 is a broken front view of an erected modular tower illustrating the manner in which the connectors of the present invention operate. 9
FIG. 2 is a top view of FIG. 1.
FIG. 3 is a cross-sectional view of one connected joint through line 3-3 of FIG. 2.
FIG. 4 is an exploded cross-sectional view of a second embodiment of a joint.
Similar reference characters refer to similar parts throughout the several views of the drawing.
Referring now to FIG. 1, there is shown a prefabricated modular tower 10. Each section or module 12 may be of any desired length, usually 8 or 10 feet, so that handling and transporting of the module is made easier. The tower sets on a suitable base 14, usually a sound concrete footing of customary design. Its upper end supports a superstructure 16 which may be adapted to support a platform, an antenna system, or a light system or any other high device.
The tower may be supported by a plurality of standard guy wires (not shown) which may be attached, in any suitable manner, to the tower at various points and to a suitable anchoring means in the ground.
Each module 12 has a plurality of vertical legs l8 which may either be tubular or solid. The module shown in FIG. 1 has three legs in horizontal cross section through the tower which form an equilateral triangle (see FIG. 2.). It is also possible to use a greater number of legs, such as four, five, six, etc. with appropriate change in the cross-sectional configuration such as a rectangle, pentagon, hexagon, etc.
The ends of each leg 18 of each module 12 have a connector tube 22 secured thereto, usually by welding. The tube 22 of the upper module has the same angular relationship as the mating connector tube of the lower module (see FIGS. 3 & 4) whereby a bolt 24 may be simply passed therethrough to join the upper and lower modules together. A nut 26, with or without washers 28 and 30, is threaded on the bolt until the two connector tubes are tight.
Referring now to FIG. 3, the tubes 22 are shown with abutting end faces 32 angular to a horizontal plane.
FIG. 4 illustrates the situation where the connector tubes 22 have abutting end faces 34 which are in a horizontal plane. The connector tube end face of FIG. 3'is preferred because, in erecting the modules, one upon the other, the angled end faces tend to center" the modules with respect to the one below it. Then by mere insertion of one bolt 24 in one of the mating connector tubes of that module, the entire module is stabilized until the other bolts are inserted in the other connector tubes.
The cavity in the connector tubes 22 and the diameter of bolts 28 may be of any reasonable dimension. Typically, a 9i:- inch bolt is used with a l3/32-inch inner diameter connector tube. Using high strain steel for bolts 24, a 36-inch bolt has a sufficiently large root area that it can safely be tightened to develop approximately 12,000 pounds tension. This is normally sufficient to resist normal wind or other loads on a tower.
It will thus be seen that the objects set forth above, among those made apparent from the preceding description, are efficiently attained and, since certain changes may be made in the above construction without departing from the scope of the invention, it is intended that all matter contained in the above description or shown in the accompanying drawing shall be interpreted as illustrative and not in a limiting sense.
It is also to be understood that the following claims are intended to cover all of the generic and specific features of the invention herein described, and all statements of the scope of the invention, which, as a matter of language, might be said to fall therebetween.
Now that the invention has been described what I claim is:
l. A skeleton tower comprising a plurality of vertically stacked, modular sections, each section including a plurality of vertical legs spaced about the periphery thereof, the vertical legs of one section being in aligned, end-abutting relation with the legs of the adjacent section, means connecting the legs together at the abutting ends, said means comprising a connector tube fixedly connected to each end of each leg, the
tubes at the abutting ends of the legs forming a pair, the longitudinal axes of the tubes being in angular relation to the longitudinal axes of the legs, the pair of connector tubes at the abutting ends of the legs being aligned with each other, and fastening means traversing said tubes and clampingly joining the tubes together.
2. The structure of claim I wherein said fastening means comprises nut and bolt combination including a bolt positioned on the interior of the pairs of connector tubes, and a nut lockingly engaging one extremity of said bolt so as to be maintained in frictional engagement with one end of one of said tubes, whereby said tubes are maintained in locked, aligned engagement with one another.
3. The joint structure of claim 1 wherein said pairs of connector tubes have abutting end faces which are angular to a horizontal plane.
4. The joint structure of claim 1 wherein said pairs of connector tubes have abutting end faces which are in a horizontal plane.
Claims (4)
1. A skeleton tower comprising a plurality of vertically stacked, modular sections, each section including a plurality of vertical legs spaced about the periphery thereof, the vertical legs of one section being in aligned, end-abutting relation with the legs of the adjacent section, means connecting the legs together at the abutting ends, said means comprising a connector tube fixedly connected to each end of each leg, the tubes at the abutting ends of the legs forming a pair, the longitudinal axes of the tubes being in angular relation to the longitudinal axes of the legs, the pair of connector tubes at the abutting ends of the legs being aligned with each other, and fastening means traversing said tubes and clampingly joining the tubes together.
2. The structure of claim 1 wherein said fastening means comprises nut and bolt combination including a bolt positioned on the interior of the pairs of connector tubes, and a nut lockingly engaging one extremity of said bolt so as to be maintained in frictional engagement with one end of one of said tubes, whereby said tubes are maintained in locked, aligned engagement with one another.
3. The joint structure of claim 1 wherein said pairs of connector tubes have abutting end faces which are angular to a horizontal plane.
4. The joint structure of claim 1 wherein said pairs of connector tubes have abutting end faces which are in a horizontal plane.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US376470A | 1970-01-19 | 1970-01-19 |
Publications (1)
Publication Number | Publication Date |
---|---|
US3634989A true US3634989A (en) | 1972-01-18 |
Family
ID=21707470
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US3764A Expired - Lifetime US3634989A (en) | 1970-01-19 | 1970-01-19 | Modular tower |
Country Status (1)
Country | Link |
---|---|
US (1) | US3634989A (en) |
Cited By (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2495275A1 (en) * | 1980-12-01 | 1982-06-04 | Lerc | LATTICE STRUCTURE, ESPECIALLY ANTENNA MAT-SUPPORT |
US4393533A (en) * | 1980-08-21 | 1983-07-19 | Etat Francais | Device for lap-joint engagement of two bridge elements on intrados or extrados and bridge element comprising it |
US4557097A (en) * | 1983-09-08 | 1985-12-10 | The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration | Sequentially deployable maneuverable tetrahedral beam |
US5832688A (en) * | 1996-08-28 | 1998-11-10 | Crissey; Merrill E. | Lightweight, prestressed tower |
US6443656B1 (en) * | 2001-03-30 | 2002-09-03 | Abt, Inc. | Trench forming assembly having removable pin anchoring mechanism |
US20040244327A1 (en) * | 2003-04-25 | 2004-12-09 | William Stonecypher | Trusses |
US20060277843A1 (en) * | 2005-05-13 | 2006-12-14 | Tracy Livingston | Structural tower |
US20070151194A1 (en) * | 2005-12-30 | 2007-07-05 | Tracy Livingston | Lifting system and apparatus for constructing wind turbine towers |
US20080066405A1 (en) * | 2006-09-18 | 2008-03-20 | David Nicholson | Tri-pole transmission tower |
US20080080946A1 (en) * | 2006-10-02 | 2008-04-03 | Tracy Livingston | Expansion pin system for a wind turbine structural tower |
US20080078128A1 (en) * | 2006-10-02 | 2008-04-03 | Tracy Livingston | Lifting system and apparatus for constructing and enclosing wind turbine towers |
US20080078083A1 (en) * | 2006-10-02 | 2008-04-03 | Tracy Livingston | Drive pin system for a wind turbine structural tower |
US20090294219A1 (en) * | 2008-05-30 | 2009-12-03 | David Oliphant | Wind tower service lift |
US20100242406A1 (en) * | 2008-12-15 | 2010-09-30 | Wind Tower Systems, Llc | Structural shape for wind tower members |
GB2480169B (en) * | 2009-10-09 | 2014-03-19 | Fasmetrics Ltd | Antenna mast system and mounting apparatus |
US20140237914A1 (en) * | 2011-10-19 | 2014-08-28 | Mca Tecnologia De Estruturas Ltda | Windbreak supporting tower for reducing the speed of natural wind on open-air ore stacks |
US20150361685A1 (en) * | 2013-02-01 | 2015-12-17 | Seccional Brasil S/A | Lattice tower |
US9273466B2 (en) * | 2014-08-03 | 2016-03-01 | Carlos Anglade | Self supporting communication tower |
RU173912U1 (en) * | 2016-12-26 | 2017-09-19 | федеральное государственное бюджетное образовательное учреждение высшего образования "Донской государственный технический университет" (ДГТУ) | Spatial lattice support |
US20170320664A1 (en) * | 2016-05-03 | 2017-11-09 | Earthbin Inc. | In-ground receptacle and installation thereof |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1846772A (en) * | 1929-09-26 | 1932-02-23 | Wallis Barnes Neville | Frame structure |
GB384769A (en) * | 1931-11-16 | 1932-12-15 | John Charles Moore | Improvements in or relating to tubular framework |
FR765287A (en) * | 1933-12-08 | 1934-06-05 | Improvements made to devices for assembling cylindrical or prismatic parts making any given angle between them | |
US2857994A (en) * | 1954-03-08 | 1958-10-28 | Patent Scaffolding Co Inc | Erection frames for sectional towers |
FR1263311A (en) * | 1960-04-27 | 1961-06-09 | Portenseigne Ets Marcel | Improvements to tube assembly systems |
FR1408330A (en) * | 1964-07-02 | 1965-08-13 | Building roofing in molded plastic elements | |
US3354591A (en) * | 1964-12-07 | 1967-11-28 | Fuller Richard Buckminster | Octahedral building truss |
-
1970
- 1970-01-19 US US3764A patent/US3634989A/en not_active Expired - Lifetime
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1846772A (en) * | 1929-09-26 | 1932-02-23 | Wallis Barnes Neville | Frame structure |
GB384769A (en) * | 1931-11-16 | 1932-12-15 | John Charles Moore | Improvements in or relating to tubular framework |
FR765287A (en) * | 1933-12-08 | 1934-06-05 | Improvements made to devices for assembling cylindrical or prismatic parts making any given angle between them | |
US2857994A (en) * | 1954-03-08 | 1958-10-28 | Patent Scaffolding Co Inc | Erection frames for sectional towers |
FR1263311A (en) * | 1960-04-27 | 1961-06-09 | Portenseigne Ets Marcel | Improvements to tube assembly systems |
FR1408330A (en) * | 1964-07-02 | 1965-08-13 | Building roofing in molded plastic elements | |
US3354591A (en) * | 1964-12-07 | 1967-11-28 | Fuller Richard Buckminster | Octahedral building truss |
Cited By (31)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4393533A (en) * | 1980-08-21 | 1983-07-19 | Etat Francais | Device for lap-joint engagement of two bridge elements on intrados or extrados and bridge element comprising it |
FR2495275A1 (en) * | 1980-12-01 | 1982-06-04 | Lerc | LATTICE STRUCTURE, ESPECIALLY ANTENNA MAT-SUPPORT |
US4557097A (en) * | 1983-09-08 | 1985-12-10 | The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration | Sequentially deployable maneuverable tetrahedral beam |
US5832688A (en) * | 1996-08-28 | 1998-11-10 | Crissey; Merrill E. | Lightweight, prestressed tower |
US6443656B1 (en) * | 2001-03-30 | 2002-09-03 | Abt, Inc. | Trench forming assembly having removable pin anchoring mechanism |
US6533497B2 (en) | 2001-03-30 | 2003-03-18 | Abt, Inc. | Method of using a trench forming assembly having removable pin anchoring mechanism |
US20040244327A1 (en) * | 2003-04-25 | 2004-12-09 | William Stonecypher | Trusses |
US20100226785A1 (en) * | 2005-05-13 | 2010-09-09 | Wind Tower Systems, Llc | Structural tower |
US20060277843A1 (en) * | 2005-05-13 | 2006-12-14 | Tracy Livingston | Structural tower |
US7877934B2 (en) | 2005-12-30 | 2011-02-01 | Wind Tower Systems, Llc | Lifting system and apparatus for constructing wind turbine towers |
US20070151194A1 (en) * | 2005-12-30 | 2007-07-05 | Tracy Livingston | Lifting system and apparatus for constructing wind turbine towers |
US20080066405A1 (en) * | 2006-09-18 | 2008-03-20 | David Nicholson | Tri-pole transmission tower |
US20080080946A1 (en) * | 2006-10-02 | 2008-04-03 | Tracy Livingston | Expansion pin system for a wind turbine structural tower |
US20080078128A1 (en) * | 2006-10-02 | 2008-04-03 | Tracy Livingston | Lifting system and apparatus for constructing and enclosing wind turbine towers |
US20080078083A1 (en) * | 2006-10-02 | 2008-04-03 | Tracy Livingston | Drive pin system for a wind turbine structural tower |
US8069634B2 (en) | 2006-10-02 | 2011-12-06 | General Electric Company | Lifting system and apparatus for constructing and enclosing wind turbine towers |
US20100236161A1 (en) * | 2006-10-02 | 2010-09-23 | Wind Tower Systems, Llc | Lifting system and apparatus for constructing and enclosing wind turbine towers |
US8016268B2 (en) | 2008-05-30 | 2011-09-13 | Wind Tower Systems, Llc | Wind tower service lift |
US20090294219A1 (en) * | 2008-05-30 | 2009-12-03 | David Oliphant | Wind tower service lift |
US20100242406A1 (en) * | 2008-12-15 | 2010-09-30 | Wind Tower Systems, Llc | Structural shape for wind tower members |
US8910446B2 (en) | 2008-12-15 | 2014-12-16 | Ge Wind Energy, Llc | Structural shape for wind tower members |
GB2480169B (en) * | 2009-10-09 | 2014-03-19 | Fasmetrics Ltd | Antenna mast system and mounting apparatus |
US20140237914A1 (en) * | 2011-10-19 | 2014-08-28 | Mca Tecnologia De Estruturas Ltda | Windbreak supporting tower for reducing the speed of natural wind on open-air ore stacks |
US8955274B2 (en) * | 2011-10-19 | 2015-02-17 | Metalvix Engenharia E Consultoria Ltda | Windbreak supporting tower for reducing the speed of natural wind on open-air ore stacks |
US20150361685A1 (en) * | 2013-02-01 | 2015-12-17 | Seccional Brasil S/A | Lattice tower |
US9926717B2 (en) * | 2013-02-01 | 2018-03-27 | Seccional Brasil S/A | Lattice tower |
US10760293B2 (en) | 2013-02-01 | 2020-09-01 | Seccional Brasil S/A | Lattice tower |
US9273466B2 (en) * | 2014-08-03 | 2016-03-01 | Carlos Anglade | Self supporting communication tower |
US20170320664A1 (en) * | 2016-05-03 | 2017-11-09 | Earthbin Inc. | In-ground receptacle and installation thereof |
US9938077B2 (en) * | 2016-05-03 | 2018-04-10 | Earthbin Inc. | In-ground receptacle and installation thereof |
RU173912U1 (en) * | 2016-12-26 | 2017-09-19 | федеральное государственное бюджетное образовательное учреждение высшего образования "Донской государственный технический университет" (ДГТУ) | Spatial lattice support |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US3634989A (en) | Modular tower | |
US3485005A (en) | Structural assembly | |
US3371458A (en) | Structural unit | |
US4577449A (en) | Prefabricated structural connector for steel-frame buildings | |
US3368319A (en) | Tall column structure of connected sections with warren cross-bracing and legs of channel section | |
US4315386A (en) | Portal building structures | |
US4122646A (en) | Equilateral derrick structure | |
US4314434A (en) | Utility line support structure | |
US3922827A (en) | Hyperbolic tower structure | |
US2316560A (en) | Structural element | |
US3417520A (en) | Dome structure and method of fabrication and erection | |
US5802772A (en) | Releaseable joint for joining two construction elements and transportable construction comprising same | |
US5491949A (en) | Cross bracing for wooden structures | |
CN210104967U (en) | Assembled house structure | |
US6578339B1 (en) | Sectional tower with intermediate legs | |
US3676964A (en) | Frame and building structure and method of constructing same | |
US2417825A (en) | Bridge structure | |
EP0104915B1 (en) | Modular unit | |
JP7058892B1 (en) | Steel structure constructed around the existing columnar body and its construction method | |
US4981397A (en) | Lightweight sectional dock system | |
US20160032588A1 (en) | Self supporting communication tower | |
WO1990005220A1 (en) | Adjustable space frames and trusses | |
KR20060002980A (en) | Three-dimensional structure | |
CN215166518U (en) | V-shaped support and beam or column connecting node | |
US9151035B2 (en) | Double axis frame strut |