Method of constructing a concrete shear core multistory building

A method for constructing a multistory concrete shear core building comprising the steps of:

• building a steel erection structure at least seven floors tall comprising a plurality of preassembled segments, each preassembled segment including a first plurality of vertical columns, a first plurality of horizontal beams, and a plurality of steel reinforcing bars, and wherein building the steel erection structure includes lifting each of the plurality of preassembled segments as a unit for placement;
• building a steel framing structure at least seven floors tall, the steel framing structure including a second plurality of vertical columns and a second plurality of horizontal beams;
• installing at least one floor structure that is cooperatively supported by the steel erection structure and the steel framing structure;
• positioning an inner form and an outer form about the steel erection structure such that the inner form and the outer form surround at least a portion of the steel reinforcing bars, the inner form and the outer form defining a volume that is adapted to receive a concrete pour;
• pouring concrete into the defined volume such that the concrete and the steel reinforcing bars form a portion of a concrete shear core for the concrete shear core building;
• vertically extending the steel erection structure and the steel framing structure;
• repositioning the inner form and the outer form to define a second volume directly above the first volume;
• and
• pouring concrete into the second volume, thereby vertically extending the concrete shear core.

A method for constructing a multistory concrete shear core building comprising the steps of:

• preassembling a plurality of steel erection segments, each steel erection segment having a first plurality of vertical columns, a first plurality of horizontal beams, and a plurality of steel reinforcing bars;
• building a steel erection subassembly by lifting each of the plurality of steel erection segments as a unit for placement and assembling the plurality of steel erection segments into a substantially rectangular column;
• building a peripheral structural steel subassembly including a second plurality of vertical columns and a second plurality of horizontal beams;
• installing at least one floor structure that is cooperatively supported by the steel erection subassembly and the peripheral structural steel subassembly;
• positioning an inner form and an outer form about the steel erection subassembly such that the inner form and outer form surround at least a portion of the plurality of steel reinforcing bars, the inner form and outer form defining a volume that is adapted to receive a concrete pour;
• and
• pouring concrete into the defined volume such that the concrete and the plurality of steel reinforcing bars form a portion of a concrete shear core for the concrete shear core building.