A concrete sandwich composite structure of an ultra-high performance concrete wrapped steel tube includes a steel arch, a plurality of connecting members and an ultra-high performance concrete layer. The plurality of connecting members are arranged on an outer wall of the steel arch at intervals, and one end of each connecting member is fixedly connected with the outer wall of the steel arch; and the ultra-high performance concrete layer is arranged on the outer wall of the steel arch and connected with the outer wall of the steel arch through the connecting members, and the ultra-high performance concrete layer can effectively prevent water from being contacted with the steel arch, so that a durability of the steel arch is improved, and an isolating agent is further arranged between the ultra-high performance concrete layer and the outer wall of the steel arch, and an elongated shear nail in the connecting member is wrapped by rubber, so that the interaction between the ultra-high performance concrete layer and a main body structure of the steel arch can be reduced, the effects of releasing a stress of the ultra-high performance concrete layer and reducing a thickness are achieved, and plain concrete can be poured into the steel arch to improve an anti-collision performance.

A lintel system for supporting masonry blocks above an opening in a structure includes a lintel configured to span a width of the opening. The lintel includes a single spanning member having a top edge, a bottom edge, and a side face extending between the top and bottom edge. Supports are disposed at longitudinal ends of the single plate member. A stiffener is attached to the lintel for reinforcing the lintel. The stiffener extends in opposed relation to the side face along at least a portion of the side face.

A lintel system for supporting masonry blocks above an opening in a structure includes a lintel configured to span a width of the opening. The lintel includes a single spanning member having a top edge, a bottom edge, and a side face extending between the top and bottom edge. Supports are disposed at longitudinal ends of the single plate member. A stiffener is attached to the lintel for reinforcing the lintel. The stiffener extends in opposed relation to the side face along at least a portion of the side face.

Methods for manufacturing a composite concrete structure are provided. A method can include utilizing a shell formwork with a displacement piece positioned therein. A first type of concrete can be placed in the shell formwork around the displacement piece. The displacement piece, when removed, leaves a void that is fillable with a second type of concrete for form the composite concrete structure. A reinforcement cage or reinforcement rods can be incorporated into the void prior to placement of the second type of concrete.

Methods for manufacturing a composite concrete structure are provided. A method can include utilizing a shell formwork with a displacement piece positioned therein. A first type of concrete can be placed in the shell formwork around the displacement piece. The displacement piece, when removed, leaves a void that is fillable with a second type of concrete for form the composite concrete structure. A reinforcement cage or reinforcement rods can be incorporated into the void prior to placement of the second type of concrete.

Methods for manufacturing a composite concrete structure are provided. A method can include utilizing a shell formwork with a displacement piece positioned therein. A first type of concrete can be placed in the shell formwork around the displacement piece. The displacement piece, when removed, leaves a void that is tillable with a second type of concrete for form the composite concrete structure. A reinforcement cage or reinforcement rods can be incorporated into the void prior to placement of the second type of concrete.

Methods for manufacturing a composite concrete structure are provided. A method can include utilizing a shell formwork with a displacement piece positioned therein. A first type of concrete can be placed in the shell formwork around the displacement piece. The displacement piece, when removed, leaves a void that is tillable with a second type of concrete for form the composite concrete structure. A reinforcement cage or reinforcement rods can be incorporated into the void prior to placement of the second type of concrete.

A building structure (100) is erected on a concrete slab (105). The structure comprises a rigid beam-and-post frame (110) and a plurality of wall and roof panels (130, 145). A first end of the posts (120) of the frame are secured to the concrete slab. A beam (115) is secured to a second end of the posts. Adjacent wall and roof panels are secured to one-another by interlocking edges joined with adhesive or other fasteners. Wall panels adjacent to the posts of the frame may be secured to the posts. Roof panels are secured to the beam and wall panels. Wall panels are secured to the concrete slab by adhesive sealant (1000), angles (1005), and bolts (1010, 1015). Ceiling panels are secured to the beam by a plurality of bolts (1010), and brackets (1005, 1200). Openings (135) for windows and doors are formed in the wall panels.

Structural frame for supporting at least one slanted section of a high-rise building, the slanted section comprising a perimeter and plurality of floors, wherein the structural frame is arranged at the perimeter of the slanted section; the structural frame closes the perimeter of the slanted section; and at least 85% of the loads of the floors in the slanted section are transferred to the structural frame at the perimeter of the slanted section. A high-rise building comprising at least one slanted section and a support frame for supporting the at least one slanted section is also provided.

A lintel system for supporting masonry blocks above an opening in a structure includes a lintel configured to span a width of the opening. The lintel includes a plurality of elongate splice plates each having opposite longitudinal ends. The splice plates are attached together end to end such that a longitudinal end of each splice plate is attached to a longitudinal end of at least one other splice plate.