Abstract: A barrier structure with bolt-down pockets, allowing the structure to be installed as a semi-permanent or permanent structure. The bolt-down pockets are at uniform spacing along the base of the barrier structure and located on opposite sides of the structure. A bolt-down bar extends across and through the base at each pair of bolt-down pockets. Additional reinforcement is provided by rebar bent a generally “U” shape, sometimes called a “hairpin” shape. Toward each end of each bolt-down plate, the base of the “U” shaped rebar is welded to the bolt-down plate near a bolt hole in the bolt-down plate with the legs of the “U” extending at an angle up into the concrete structure. Further reinforcing at the sites of the bolt-down pockets is provided by rebar, sometimes called “stirrups”, bent in a form which generally conforms to the cross-section of the precast concrete structure.

Abstract: A system and method for a secondary water drainage system with street level leak detection positioned between spaced apart prefabricated building panels is disclosed herein. In the space between two adjacent prefabricated building panels, an inner line of caulk is formed from the top to the bottom of the panels. Next, a porous drain strip is positioned adjacent to a first side of the inner line of caulk, also extending vertically from the top to the bottom of the panels. Lastly, an exterior line of caulk if formed adjacent to the porous drain strip extending vertically from the top of the panels to a point just above the bottom of the panels. The porous drain strip is extended through this space formed in the exterior line of caulk and allows the water collected to exit through the same space.

Abstract: A highway crash barrier structure with an improved interlocking system includes a plurality of rigid sections disposed end-to-end in interlocking relationship with one another. The ends of each rigid upright section are provided with a reshaped JJ Hooks® connection. Each hook member has an extending vertical lip which is bent into a “J” shaped cross-section to engage a similar lip on the hook member of the adjacent section such that lateral movement of the respective sections is prevented. However, the respective sections of the system can be easily placed or removed by vertically displacing them. In addition, the interlocking plates at each end of the upright sections are vertically lengthened while the number of bars welded to the plate is increased to reduce the rotational moment of the sections and increase shear transfer between adjacent sections.

Abstract: A mounting and drainage system of a prefabricated building panel. The mounting system includes a first mounting plate mounted to a vertical stud of a frame and a second mounting plate mounted to an adjacent vertical stud of the frame. The first and second mounting plates face one another. A landing pad extends between the first and second mounting plates and is mounted on a landing hook that extends outward from a floor of a building. The landing pad is retained on the landing hook by a retaining plate extending from the landing hook. Welding plates having a slot therein are also provided on other mounting plates and are welded to an edge of the floor. The landing pad is removable once the prefabricated building panel is mounted on the building. A drainage system is also provided. The drainage system includes a drain aperture positioned on a lower track between an inner wall of building and the wall of the prefabricated building panel.

Abstract: An improved post tensioning system for prefabricated building panels in which a concentric uniform radial compression is maintained in the slab. A post tensioning cable is placed in the concrete slab to form a perimeter loop starting from one corner of the slab to a point where the cable entered the slab and at a point turning 90.degree. to follow that portion of the cable in the periphery to a point midway up the Y axis and then turning 90.degree. across the X axis to bisect the slab and cross the opposite parallel portion of the cable to exit out the adjacent side of the slab. This creates a cable pattern with no less than 2.5 parallel cables in any direction.

Abstract: An improved post tensioning system for prefabricated building panels in which a concentric uniform radial compression is maintained in the slab. A post tensioning cable is placed in the concrete slab to form a perimeter loop starting from one corner of the slab to a point where the cable entered the slab and at a point turning 90.degree. to follow that portion of the cable in the periphery to a point midway up the Y axis and then turning 90.degree. across the X axis to bisect the slab and cross the opposite parallel portion of the cable to exit out the adjacent side of the slab. This creates a cable pattern with no less than 2.5 parallel cables in any direction.