| 摘要 |
THE STRUCTURAL COLUMNS (20) OF A BUILDING ARE FORMED BY ARRANGING AND HOLDING PRECAST "PORTALS" (10), (I.E. SINGLE-PIECE ARCH-LIKE STRUCTURES FORMED BY PRECASTING A PAIR OF REINFORCED CONCRETE COLUMNS AND A REINFORCED BEAM) SO THAT THE LEGS (12) OF ADJOINING PORTALS (10) ENCLOSE A COLUMNAR SPACE (20). THE COLUMN (20) IS THEN CAST IN SITU IN PARTIALLY THE SAID COLUMNAR SPACE (20).(FIG 8)
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