Concrete-made panel and method of fabricating the same
AssigneeJOIST Co., Ltd.
InventorMitsuo Nakamura
Life of this patent
Estimating the term…
Abstract
A pair of first and second concrete layers (1, 2) spaced away from each other by a certain distance are connected to each other through a corrugated plate (3) having a uniform magnitude of amplitude so that there are formed a space between the concrete layers (1, 2). A weight of a concrete-made panel is decreased by this hollow structure. A corrugated plate (3) is designed to have a trapezoidal cross-section of rectangular corrugation. By sinking mountain and valley portions of the corrugated plate into the first and second concrete layers (1, 2), the concrete-made panel can have enhanced compressive strength in a direction of corrugation of the corrugated plate (3), and have enhanced rigidity because of diagonal members of a truss which keeps the concrete-made panel being kept to be a plane.
Claims9
A concrete panel comprising:
- a pair of first and second concrete layers spaced away from each other by a certain distance, and
- a corrugated plate having a cross-section of approximately trapezoidal corrugation with approximately planar summit portions and approximately planar bottom portions,
- wherein the corrugated plate is interposed between the first and second concrete layers and the summit portions project into and are integrally connected with the second layer and the bottom portions project into and are integrally connected with the first layer, and wherein the corrugated plate defines a hollow portion between the first and second layers.
Dependencies are inferred from the claim text.