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:
The present invention broadly comprises a method and apparatus for constructing a concrete lower. In one embodiment, a tower construction apparatus includes an alignment jig and a pre-cast concrete element located on the alignment jig.
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. A rod forms a joint between the foundation and one of the two legs. The rod is located in the aperture in the upper surface of the foundation and in an aperture in a lower surface in the one of the two legs.
Abstract:
A core component for a base of a tower assembly includes a body of the core component and a flange. The body has an arcuate outer sidewall and an arcuate inner sidewall. The body includes a hole extending from the outer sidewall to a bottom of the body. The flange extends from the arcuate inner sidewall of the body. The flange includes at least one bore hole configured to receive a post-tensioning tendon.
Abstract:
Various implementations include methods and apparatuses for constructing a concrete structure. In one implementation, a structure includes a pre-cast concrete column section and a pre-cast concrete beam section. The column section includes an embedded first assembly with a threaded rod, and the beam section includes an embedded second assembly defining a channel for receiving the threaded rod. Grout is fed through a joint between the column and beam sections into the second assembly to couple the threaded rod with the second assembly. The grout is urged through the joint and the second assembly by gravity and by applying vacuum suction to a grout port defined by the second assembly. The grout port extends between the channel of the second assembly and an external face of the beam section.
Abstract:
The present invention broadly comprises a method and apparatus for constructing a concrete tower. In one embodiment, a tower construction apparatus includes an alignment jig and a pre-cast concrete element located on the alignment jig.
Abstract:
Various implementations comprise a method and apparatus for constructing a concrete structure in stages. In various implementations, an apparatus includes a base, a support column located on the base, and a movable scaffolding rotatably coupled to a top of the support column. According to various other implementations, a method for assembling a tower stage includes: (1) providing a base platform; (2) coupling a pole to the base platform; (3) disposing two or more staves around the pole; (4) coupling the staves together to form the tower stage; and (5) removing the tower stage from the platform.
Abstract:
A method and apparatus for constructing a tower, where the apparatus may include a structure including a foundation including a plurality of hydraulic cylinders; a truss tower located on the foundation and configured to support a tower built on the foundation; and a controller configured to control extension and retraction of the hydraulic cylinders.
Abstract:
A structure includes two legs, a horizontal support, and an adhesive. 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:
The present invention broadly comprises a method and apparatus for constructing a concrete structure, where one embodiment of apparatus includes a pre-cast concrete component and a poured in place concrete surface supported by the pre-cast concrete component.