Precast base, method of manufacturing the precast base and method of installing architectural structure having the precast base

A method for manufacturing a precast base, comprising:

• providing a mold with a space therein, and disposing a plurality of corrugated steel pipes at corners of the periphery of the space;
• disposing in parallel a plurality of first U-shaped reinforcement bars at equal intervals in an X-axis direction, wherein openings of the plurality of first U-shaped reinforcement bars face a bottom of the space;
• disposing in parallel a plurality of second U-shaped reinforcement bars at equal intervals in a Z-axis direction, wherein openings of the plurality of second U-shaped reinforcement bars face the bottom of the space, the plurality of second U-shaped reinforcement bars being substantially perpendicular to the plurality of first U-shaped reinforcement bars;
• disposing at least one third reinforcement bar to surround and fix to the sides of the plurality of first U-shaped reinforcement bars and the plurality of second U-shaped reinforcement bars;
• disposing a lifting part and fixing the lifting part to the plurality of first U-shaped reinforcement bars with a fourth reinforcement bar;
• and
• pouring concrete into the space of the mold.

A method of installing an architectural structure, comprising:

• (a) embedding a plurality of reinforcement bars at a predetermined position in a floor slab, wherein a portion of each of the plurality of reinforcement bars extends out of the floor slab;
• (b) lifting a precast base to the predetermined position, the precast base including a precast concrete body with a top surface and a bottom surface opposite to the top surface, and a plurality of mounting holes, each of the plurality of mounting holes penetrating from the top surface to the bottom surface of the precast concrete body, a plurality of corrugated steel pipes respectively embedded in the plurality of mounting holes, and a lifting part embedded in and close to the center of the top surface of the precast concrete body such that the portion of the plurality of reinforcement bars is respectively inserted into the plurality of mounting holes of the precast base;
• (c) disposing a plurality of elongated support members, wherein a portion of each of the plurality of elongated support members is fixedly inserted into the precast base, and the other portion extends out of the upper surface of the precast base;
• (d) respectively disposing a plurality of first bolts at a first height on the plurality of elongated support members;
• (e) disposing a supporting structure comprising a stand with a plurality of through-holes on the plurality of first bolts, such that the plurality of elongated support members are inserted through the plurality of through-holes of the stand, and a bottom of the stand rests on the plurality of first bolts;
• and
• (f) respectively disposing a plurality of second bolts at a second height on the plurality of elongated support members, and a bottom of the plurality of second bolts rests on the stand.