A casting kit for constructing a foundation which includes a plurality of void forming members, each of which has securing means on its sides to secure to a matched void forming member thereby to define a minor void forming formation and at least one side of each void forming member having a step formation such that a groove is formed between the step formation of adjacent void forming members in a minor void forming formation for receiving tensile elements in the groove.

A cellulose-based structural building panel assembly includes a cross-laminated timber (CLT) core which is reinforced with one or more post-tensioned tendons stressed to a pre-selected tensioning force, following the placement as part of the panel assembly. The tendons are provided within a sleeve which is grouted with a channel formed in an underside of the core and which after post-tensioning of tendons is infilled with a binder securing the tendons in a fully bonded configuration.

A cellulose-based structural building panel assembly includes a cross-laminated timber (CLT) core which is reinforced with one or more post-tensioned tendons stressed to a pre-selected tensioning force, following the placement as part of the panel assembly. The tendons are provided within a sleeve which is grouted with a channel formed in an underside of the core and which after post-tensioning of tendons is infilled with a binder securing the tendons in a fully bonded configuration.

A method for forming a plurality of beams connected in series is provided. The method comprises the following steps: providing a plurality of columns; providing a plurality of pre-assembled bar combinations, wherein each of the plurality of pre-assembled bar combinations comprises a plurality of lower main bars and a plurality of lower stirrups, and at least one end of the plurality of the lower main bars has connection sections extending beyond the plurality of lower stirrups; hoisting each of the bar combinations so that the two ends thereof are placed on top of two adjacent columns of the plurality of columns and the connection sections of the plurality of lower main bars of adjacent plurality of bar combinations overlap; and connecting the plurality of connection sections of the plurality of lower main bars of the adjacent plurality of bar combinations.

An RC lattice beam is provided that can greatly dampen the transfer of vibrations in particular. As the concrete included in the RC lattice beam is polymer concrete that contains a polymer, fine-scale vibrations that may otherwise affect exposure apparatuses may be effectively dampened, while the depth of the conventional lattice beam may be kept the same. Thus, a high-damping RC lattice beam is provided that is capable of maximizing the performance of a precision exposure apparatus by reducing the defect rate and improving productivity.

The present invention relates to a concrete structure for constructing a building floor and a building floor construction structure including the same. The present invention provides a concrete structure for constructing a building floor which forms a building floor foundation, including: a concrete main body to store fire-extinguishing water for fire suppression; and a fire-extinguishing water injection unit to inject the fire-extinguishing water stored in the concrete main body, and a building floor construction structure including the same. According to the present invention, the concrete structure for forming a building floor stores fire-extinguishing water, and thus early fire suppression is possible, building floor construction is facilitated, and excellent inter-floor sound insulation properties are provided.

The invention relates to a lightweight concrete building structure using pre-stressed lightweight structural beams 46 with a lightweight floor panel (48) spanning between beams (46). In a particular arrangement, the parking system using building structure (10) may be about less than half the weight than traditional parking building structures. In accordance with one arrangement of the particular embodiment of the invention, the building structure comprises floor structures having one or more structural beams, and one of more lightweight panels for attachment to the structural beam, wherein the floor structure is defined by joining together the one or more lightweight structural beams and the one of more lightweight panels. This particular arrangement is particularly useful because it permits defining a floor structure capable of sustaining relative large loads (such as a multitude of vehicles) using lightweight floor panels.

A manufactured building panel having a building panel frame that defines a cavity and having an injection aperture in fluid communication with the cavity, and an expanded foam disposed within and filling the cavity. A fabric covers and is bonded to a front surface and a rear surface of the frame to enclose the cavity. The expanded foam is formed by injecting an expandable polymer through the injection aperture and into the cavity, which expands to fill the cavity and permeate the fabric, and to cure to form the expanded foam that bonds to the frame and the fabric.

An isolation block is useful for sealing a flute of a fluted metal deck and a movement joint between the metal deck and an adjacent wall configuration. The isolation block includes a flute sealing portion adapted to snugly fit into one of the flutes of the fluted metal deck, a joint sealing portion for sealing a movement joint, and a corrugation sealing portion for sealing a corrugation between adjacent fluted deck elements or in one of the fluted deck elements.

Formwork for constructing a floor system in a building, the formwork comprising: a plurality of pre-cast concrete joists positioned in a generally parallel arrangement, wherein one or more of the joists comprises: a horizontal base portion; and an upwardly directed portion extending substantially along the length of the joist, the upwardly directed portion having spaced apart surfaces extending upwardly from the base wherein respective shelf portions of the base are located adjacent said upwardly directed portion; a plurality of pre-cast concrete members for extending along a length of the joists for receiving wet concrete; and a supporting arrangement to support opposite ends each of the pre-cast concrete members upon oppositely arranged shelf portions of two adjacent joists.