Abstract: A structure includes at least one foundation, two legs, a horizontal support, and an adhesive. The two legs are supported by the at least one foundation. Each of the two legs includes at least one aperture. The horizontal support has two ends. A first end is located in an aperture in a first leg of the two legs and a second end of the horizontal support is located in an aperture in a second leg of the two legs. The first end of the horizontal support has a cross-sectional area that is less than a cross-sectional area of the aperture in the first leg and the second end of the horizontal support has a cross-sectional area that is less than a cross-sectional area of the aperture in the second leg. The adhesive is within each aperture and in contact with the horizontal support.

Abstract: In one embodiment, a base structure for a support tower may include a ring foundation pad, a transition piece disposed above the ring foundation pad, and a plurality of staves positioned around the transition piece. Each of the plurality of staves respectively includes a top portion and a bottom portion. The bottom portion of each stave is wider than the top portion of each stave. The bottom portion of each stave is located above the ring foundation pad and the top portion of each stave is respectively secured to the transition piece.

Abstract: A pipe rack and a method for making a pipe rack where the pipe rack may include at least one foundation, two legs, and a horizontal support. The two legs are supported by the at least one foundation. Each of the two legs includes at least one aperture. The horizontal support has two ends. The first end is located in an aperture in a first leg of the two legs and a second end of the horizontal support is located in an aperture in a second leg of the two legs. The first end of the horizontal support has a cross-sectional area that is at most 75% of a cross-sectional area of the aperture in the first leg and the second end of the horizontal support has a cross-sectional area that is at most 75% of a cross-sectional area of the aperture in the second leg.

Abstract: An assembly includes a first block including a first end; and a second block assembled with the first block at a same height as the first block, the second block including a second end facing the first end of the first block. The first block and the second block are connected to the assembly such that there is no structural connection between the second end of the second block facing the first end of the first block.

Abstract: Pre-cast concrete stairs, molds for making pre-cast concrete stairs, and methods of casting pre-cast concrete stairs are provided. The stair is constructed with two beams that are cast with the stair steps as an integral monolithic structure. One of the beams (integral down edge beam) projects below the steps on one side, and the other (integral up edge beam) projects above the steps on the other side. The weight of the stairs and the weight of traffic on the steps creates compression on the tops of the integral down edge beam and integral up edge beam, and tension on the bottoms of the integral down edge beam and integral up edge beam, which enhances the combined strength of the beams. The asymmetric orientation of the members creates a stronger cross-section than if the beams were in the same plane horizontally, allowing greater load handing capability. Lightweight steps are suspended between the two beams.

Abstract: A structure including at least two structural components arranged to form a channel therebetween, a post tensioning element configured to compress the at least two elements with respect to each other, and a thixotropic filler material located within the channel.

Abstract: Disclosed are apparatus and corresponding methodologies for providing a base support, such as including concrete, and used such as for a wind-driven generator. Precast concrete cylinders are stacked in place upon a platform that may be partially precast and partially cast in place during assembly and supported, in certain embodiments, by plural concrete legs, the other ends of which are supported on a unitary or subdivided concrete foundation. In other embodiments, the platform may be supported by ribbed concrete panels. The concrete cylinders are glued together using an epoxy and then secured by an internal vertical post tension system extending from the platform to the upper most cylinder. Methodologies and apparatus for fabrication of concrete structure used in constructing the base support are also disclosed, with a focus on staves and various ring piece constructions.

Abstract: Systems and methods are disclosed for erecting a tower. The subject system includes a tower, which may include a base portion and a plurality of tower sections. The subject system may further include a frame provided on the tower, a crane provided on the frame, and a self-hoist system for elevating and lowering the frame relative to the tower. Erection of the tower is facilitated through use of the self-hoist system to elevate the frame, and use of the crane to provide various tower sections on the base portion and an initial tower section or sections.

Abstract: Disclosed are apparatus and corresponding methodology for providing a base support, such as including concrete, and used such as for a wind-driven generator. Precast concrete cylinders are stacked in place upon a platform that may be partially precast and partially cast in place during assembly and supported, in certain embodiments, by plural concrete legs, the other ends of which are supported on a unitary or subdivided concrete foundation. In other embodiments, the platform may be supported by ribbed concrete panels. The concrete cylinders are glued together using an epoxy and then secured by an internal vertical post tension system extending from the platform to the upper most cylinder. Different types of concrete are used between upper and lower sections of the stacked cylinders. The lower section uses reinforced concrete while the upper section used ultra high performance fiber reinforced concrete.

Abstract: Disclosed are apparatus and corresponding methodology for providing a base support, such as including concrete, and used such as for a wind-driven generator. Precast concrete cylinders are stacked in place upon a platform that may be partially precast and partially cast in place during assembly and supported, in certain embodiments, by plural concrete legs, the other ends of which are supported on a unitary or subdivided concrete foundation. In other embodiments, the platform may be supported by ribbed concrete panels. The concrete cylinders are glued together using an epoxy and then secured by an internal vertical post tension system extending from the platform to the upper most cylinder. Different types of concrete are used between upper and lower sections of the stacked cylinders. The lower section uses reinforced concrete while the upper section used ultra high performance fiber reinforced concrete.

Abstract: Disclosed are apparatus and corresponding methodologies for providing a base support, such as including concrete, and used such as for a wind-driven generator. Precast concrete cylinders are stacked in place upon a platform that may be partially precast and partially cast in place during assembly and supported, in certain embodiments, by plural concrete legs, the other ends of which are supported on a unitary or subdivided concrete foundation. In other embodiments, the platform may be supported by ribbed concrete panels. The concrete cylinders are glued together using an epoxy and then secured by an internal vertical post tension system extending from the platform to the upper most cylinder. Methodologies and apparatus for fabrication of concrete structure used in constructing the base support are also disclosed, with a focus on staves and various ring piece constructions.

Abstract: Disclosed are apparatus and corresponding methodologies for providing a base support, such as including concrete, and used such as for a wind-driven generator. Precast concrete cylinders are stacked in place upon a platform that may be partially precast and partially cast in place during assembly and supported, in certain embodiments, by plural concrete legs, the other ends of which are supported on a unitary or subdivided concrete foundation. In other embodiments, the platform may be supported by ribbed concrete panels. The concrete cylinders are glued together using an epoxy and then secured by an internal vertical post tension system extending from the platform to the upper most cylinder. Methodologies and apparatus for fabrication of concrete structure used in constructing the base support are also disclosed, with a focus on staves and various ring piece constructions.

Abstract: Disclosed are apparatus and corresponding methodology for providing a base support, such as including concrete, and used such as for a wind-driven generator. Precast concrete cylinders are stacked in place upon a platform that may be partially precast and partially cast in place during assembly and supported, in certain embodiments, by plural concrete legs, the other ends of which are supported on a unitary or subdivided concrete foundation. In other embodiments, the platform may be supported by ribbed concrete panels. The concrete cylinders are glued together using an epoxy and then secured by an internal vertical post tension system extending from the platform to the upper most cylinder. Different types of concrete are used between upper and lower sections of the stacked cylinders. The lower section uses reinforced concrete while the upper section used ultra high performance fiber reinforced concrete.

Abstract: Disclosed are apparatus and corresponding methodology for providing a base support, such as including concrete, and used such as for a wind-driven generator. Precast concrete cylinders are stacked in place upon a platform that may be partially precast and partially cast in place during assembly and supported, in certain embodiments, by plural concrete legs, the other ends of which are supported on a unitary or subdivided concrete foundation. In other embodiments, the platform may be supported by ribbed concrete panels. The concrete cylinders are glued together using an epoxy and then secured by an internal vertical post tension system extending from the platform to the upper most cylinder. Different types of concrete are used between upper and lower sections of the stacked cylinders. The lower section uses reinforced concrete while the upper section used ultra high performance fiber reinforced concrete.

Abstract: Disclosed are apparatus and corresponding methodologies for providing a base support, such as including concrete, and used such as for a wind-driven generator. Precast concrete cylinders are stacked in place upon a platform that may be partially precast and partially cast in place during assembly and supported, in certain embodiments, by plural concrete legs, the other ends of which are supported on a unitary or subdivided concrete foundation. In other embodiments, the platform may be supported by ribbed concrete panels. The concrete cylinders are glued together using an epoxy and then secured by an internal vertical post tension system extending from the platform to the upper most cylinder. Methodologies and apparatus for fabrication of concrete structure used in constructing the base support are also disclosed, with a focus on staves and various ring piece constructions.

Abstract: Pre-cast concrete stairs, molds for making pre-cast concrete stairs, and methods of casting pre-cast concrete stairs are provided. The stair is constructed with two beams that are cast with the stair steps as an integral monolithic structure. One of the beams (integral down edge beam) projects below the steps on one side, and the other (integral up edge beam) projects above the steps on the other side. The weight of the stairs and the weight of traffic on the steps creates compression on the tops of the integral down edge beam and integral up edge beam, and tension on the bottoms of the integral down edge beam and integral up edge beam, which enhances the combined strength of the beams. The asymmetric orientation of the members creates a stronger cross-section than if the beams were in the same plane horizontally, allowing greater load handing capability. Lightweight steps are suspended between the two beams.

Abstract: A precast concrete I-deck is provided. The I-deck comprises a bottom slab member, or soffit, with a plurality of I-beams evenly spaced along the width of the soffit, the I-beams being parallel to each other along the length of the soffit. The I-deck has diaphragm members on either end, perpendicular to the I-beams Pre-stress wires are embedded in the soffit and I-beams between the diaphragms. The spaces between the I-beams may be used to run wiring, plumbing, or ducts, or they may be filled with a filling material. The I-deck may be used in bridging and support systems for roofing or flooring.

Abstract: A rail car transporting system is used to transport relatively heavy structures by rail car, particularly prefabricated concrete structures. At least one pair of portable retaining devices are configured to retain the structure on the rail car generally at opposite longitudinal sides thereof. Each retaining device includes a base member positionable under the structure with a vertically extending boss member configured on the base member. This boss member has a shape and size so as to fit into a recess defined in the bottom of the structure. Each of the retaining devices also includes at least one securing device that is configured to secure the retaining device to the rail car such that the structure is retained on the rail car by engagement of the boss members within the recesses.

Abstract: A rail car transporting system is used to transport relatively heavy structures by rail car, particularly prefabricated concrete structures. At least one pair of portable retaining devices are configured to retain the structure on the rail car generally at opposite longitudinal sides thereof. Each retaining device includes a base member positionable under the structure with a vertically extending boss member configured on the base member. This boss member has a shape and size so as to fit into a recess defined in the bottom of the structure. Each of the retaining devices also includes at least one securing device that is configured to secure the retaining device to the rail car such that the structure is retained on the rail car by engagement of the boss members within the recesses.

Abstract: A rail car transporting system is used to transport relatively heavy structures by rail car, particularly prefabricated concrete structures. At least one pair of portable retaining devices are configured to retain the structure on the rail car generally at opposite longitudinal sides thereof. Each retaining device includes a base member positionable under the structure with a vertically extending boss member configured on the base member. This boss member has a shape and size so as to fit into a recess defined in the bottom of the structure. Each of the retaining devices also includes at least one securing device that is configured to secure the retaining device to the rail car such that the structure is retained on the rail car by engagement of the boss members within the recesses.