AUXILIARY FORM STRUCTURE OF COLUMN CONNECTION PART IN THIN PC FORM

PROBLEM TO BE SOLVED: To substitute a steel form for a corner part, and simplify a design shape by placing this beam port on steel installing plates in a structure that the beam port is arranged so as to cross a column PC form. SOLUTION: A column PC form 10 is set in a height up to an under part of a beam, and steel installing plates 12 are fixed so as to surround the periphery of its upper part, and corner-shaped forms 14 of a V shape are fixed to four corner parts of its upper part, and rectangular notches 18 to insert beam port parts of beam PC forms 16 are formed between respective steel forms 14 on the column PC form 10. The respective installing plates 12 are fixed to an upper part of the column PC form 10 so as to be mountable and demountable, and the steel forms 14 have lower flanges coincident with upper flanges of the installing plates 12, and are installed on the installing plates 12 through a bolt penetrating through both flanges so as to be easily mountable and demountable. When the beam port parts of the beam PC forms 16 are installed on the installing plates 12 through the notches 18, the beam PC forms 16 are stably supported.