A single-use or multi-use prefabricated pier top form for topping a concrete pier comprises a hollow mold with an upper portion in the desired shape of the finished pier top, a stepped-down tapered mid portion, and a lower mating portion for mating with the pier form so that concrete can be continuously poured to fill both the pier form and the pier top form at one time. Use of the prefabricated pier top form results in substantial time and material savings because the top of the pier residing above ground can be formed at the same time as the footer and pier are formed replacing the need to form a separate pier top after the pier and footer have been filled with concrete.

Systems, methods, and articles of manufacture provide for a mold system for molding structures (e.g., sand castles) from one or more various types of molding substances (e.g., sand, clay, snow). In one embodiment, a mold system comprises a split mold comprising at least two mold sections. In one embodiment, a modular mold system allows for different types of mold sections with corresponding joining elements to be joined together to create forms for molding various types of structures. In some embodiments, mold sections are configured to facilitate the breaking of a vacuum created when molding substances are packed into the mold system, thus making it easier to separate a mold from the formed structure.

A multi-axially braided reinforcement sleeve that provides a low cost, simpler method to form strong concrete columns for constructing buildings and other structures. The braided reinforcement sleeve provides structural support and the rebar normally embedded to provide structural support in concrete can be eliminated, preventing the possibility of rebar oxidation which might otherwise undermine the structural integrity of the column. The reinforcement sleeve is lightweight, easy to transport, and can be greatly reduced in size to facilitate transportation. The reinforcement sleeve and construction method can be utilized in many implementations, and can be particularly useful for constructing buildings or other structures in geographic areas that are subject to earthquakes and where low cost is important.

A method of constructing a modular building, the method can include the following sequential steps: constructing a multi-floor building frame by connecting a plurality of like open topped-trays and column assemblies, with the trays forming floors and the column assemblies separating the floors; assembling walls or walls formwork to the frame; and pouring wet concrete into the trays to form the building.

A method of constructing a modular building, the method can include the following sequential steps: constructing a multi-floor building frame by connecting a plurality of like open topped-trays and column assemblies, with the trays forming floors and the column assemblies separating the floors; assembling walls or walls formwork to the frame; and pouring wet concrete into the trays to form the building.

A single-use or multi-use prefabricated pier top form for topping a concrete pier comprises a hollow mold with an upper portion in the desired shape of the finished pier top, a stepped-down tapered mid portion, and a lower mating portion for mating with the pier form so that concrete can be continuously poured to fill both the pier form and the pier top form at one time. Use of the prefabricated pier top form results in substantial time and material savings because the top of the pier residing above ground can be formed at the same time as the footer and pier are formed replacing the need to form a separate pier top after the pier and footer have been filled with concrete.

A single-use or multi-use prefabricated pier top form for topping a concrete pier comprises a hollow mold with an upper portion in the desired shape of the finished pier top, a stepped-down tapered mid portion, and a lower mating portion for mating with the pier form so that concrete can be continuously poured to fill both the pier form and the pier top form at one time. Use of the prefabricated pier top form results in substantial time and material savings because the top of the pier residing above ground can be formed at the same time as the footer and pier are formed replacing the need to form a separate pier top after the pier and footer have been filled with concrete.

A system of reusable components and articles of manufacture for reconstructing, reinforcing, and/or repairing a structure such as columns, piles and the like using adjustable formworks. The reusable articles of manufacture employed in the disclosed system are or, if desired, may be permanently left in place. Same or similar systems and articles of manufacture may be employed to easily construct pipes of any desired diameter in a very short time.

A steel tube supporting construction structure for beam transfer floor in high-rise building and a construction method therefor are provided. The construction structure includes an upper beam formwork, a lower beam formwork, and a stand. The lower beam formwork is provided with a first column formwork on a top wall thereof, the upper beam formwork is detachably provided with a second column formwork on the bottom wall thereof. The second column formwork is detachably provided with a bottom formwork on a lower end of the second column formwork. The second column formwork is provided with a connecting member respectively on an upper end and a lower end thereof for connecting with the upper beam formwork, the lower beam formwork and the bottom formwork. The first column formwork and the second column formwork are each detachably provided with an upright barrel formwork in the vertical direction.

A method and apparatus for forming cemented ground support columns is disclosed. Namely, driving mandrels are provided for the efficient construction of incrementally enlarged diameter support columns. For example, the driving mandrel includes a feed tube that has a top portion and an expansion head portion. The expansion head portion further includes an expansion (or compaction) chamber and a flexible tubular egress port. Further, construction methods are provided of using the driving mandrels for the efficient construction of incrementally enlarged diameter support columns.