Abstract: The invention concerns a floor-to-wall joint connection “BearStop” device for providing both a water-tight seal, as well as load-bearing and flexibility between two closely abutting or adjacent structures, such as the wall and foundation of a storage tank. Embodiments also provide motion or sliding capabilities to accommodate expansion and contraction in the joint area between the wall and the foundation. A knee section provides a testing channel usable for testing the integrity of the seal.

Abstract: A prestressed composite tank has a vertical wall that extends around a storage area. The wall is made up of a substantially vertical, preferably metallic diaphragm and a layer of shotcrete on one or both sides of the diaphragm. The diaphragm is formed from a series of side-by-side panels, each of which panels has a vertically extending edge portion on each side thereof. The adjacent edge portions of each side-by-side pair of panels are in intimate, mechanical interengagement and subsequently sealed to thereby present fluid impervious joints between the adjacent panels.