A construction element includes at least one module with a rectangular parallelepiped shape, hollow and made of a composite material. The module is delimited by an enclosure with four panels, two first opposing parallel panels and two second panels perpendicular to the first panels. The second panels include at least one groove parallel to the first panels. Each second panel is extended on one side by an L-shaped profile and on the other side by a flat profile. The profiles are elements protruding outwards, parallel to the groove.

A construction element includes at least one module with a rectangular parallelepiped shape, hollow and made of a composite material. The module is delimited by an enclosure with four panels, two first opposing parallel panels and two second panels perpendicular to the first panels. The second panels include at least one groove parallel to the first panels. Each second panel is extended on one side by an L-shaped profile and on the other side by a flat profile. The profiles are elements protruding outwards, parallel to the groove.

A retention tie system for pre- or post-construction installation to stabilize masonry or composite walls. The system comprises a tie member anchored in an anchor hole bored into the existing foundation and a tensioned against a base plate and a cover plate seated along the top of the wall. A bracing member is used to provide lateral stability to the respective plate members. A tension washer is used to ensure that the tie members are tensioned to the appropriate load. A guide member is installed within the masonry wall to brace the tie members against lateral deflection.

A retention tie system for pre- or post-construction installation to stabilize masonry or composite walls. The system comprises a tie member anchored in an anchor hole bored into the existing foundation and a tensioned against a base plate and a cover plate seated along the top of the wall. A bracing member is used to provide lateral stability to the respective plate members. A tension washer is used to ensure that the tie members are tensioned to the appropriate load. A guide member is installed within the masonry wall to brace the tie members against lateral deflection.

A load indicating washer, or tension washer, for visually indicating pre-determined magnitudes of tension force in a tension tie member. The tension washer comprises a body portion with a deformable, curved annular flange member depending from the body portion. When the tension washer is compressed against a flat bearing surface, the flange member deforms to produce a visual or color indication of the magnitude of load in the tie member.

A load indicating washer, or tension washer, for visually indicating pre-determined magnitudes of tension force in a tension tie member. The tension washer comprises a body portion with a deformable, curved annular flange member depending from the body portion. When the tension washer is compressed against a flat bearing surface, the flange member deforms to produce a visual or color indication of the magnitude of load in the tie member.

A retention tie system for post-construction installation to stabilize masonry or composite walls. The system comprises a tie member anchored in an anchor hole bored into the existing foundation and a tensioned against a base plate and a cover plate seated along the top of the wall. A bracing member is used to provide lateral stability to the respective plate members. A tension washer is used to ensure that the tie members are tensioned to the appropriate load.

A retention tie system for post-construction installation to stabilize masonry or composite walls. The system comprises a tie member anchored in an anchor hole bored into the existing foundation and a tensioned against a base plate and a cover plate seated along the top of the wall. A bracing member is used to provide lateral stability to the respective plate members. A tension washer is used to ensure that the tie members are tensioned to the appropriate load.

A concrete pit for housing the below-floor part of a vehicle lift that is at least partially below floor level is constructed of precast concrete pieces. In one embodiment, a trench is dug slightly bigger than the pit that will be installed, and a precast concrete base slab is placed in the hole. Features around the perimeter of the base slab mate with corresponding features around the bottom of a precast concrete hollow rectangle, which is placed on top of the base slab. Additional precast concrete hollow rectangles may be placed on top. A vehicle lift is placed within the concrete pit and in some embodiments fixed thereto using holes, protrusions, or other features built into the concrete pit. In some embodiments, plumbing, wiring conduit, and other passageways are cast into the pieces of the concrete pit to minimize manual installation work that needs to be done in the pit.

A concrete pit for housing the below-floor part of a vehicle lift that is at least partially below floor level is constructed of precast concrete pieces. In one embodiment, a trench is dug slightly bigger than the pit that will be installed, and a precast concrete base slab is placed in the hole. Features around the perimeter of the base slab mate with corresponding features around the bottom of a precast concrete hollow rectangle, which is placed on top of the base slab. Additional precast concrete hollow rectangles may be placed on top. A vehicle lift is placed within the concrete pit and in some embodiments fixed thereto using holes, protrusions, or other features built into the concrete pit. In some embodiments, plumbing, wiring conduit, and other passageways are cast into the pieces of the concrete pit to minimize manual installation work that needs to be done in the pit.