DEMOLISHING METHOD FOR MULTISTORY BUILDING, AND DEMOLISHING LOAD TRANSMISSION STRUCTURE

PROBLEM TO BE SOLVED: To maintain a structure during demolition in a structurally stable condition, even when hit by an earthquake and applied with an air blowing load. SOLUTION: A jack 10 is interposed on all the poles P1 to Pm on a specific lower floor Fv of a building 1 to be demolished, a load transfer structure 40 having a height penetrating through the jack-interposed floor Fv from the foundation B is provided within a section T surrounded by the poles P, and a load transfer beam 45 is removably stretched along the outer faces of the load transfer structure 40, on the peripheral poles P in the section T of the right above floor F (v+1) of the jack-interposed floor Fv. Repeating a contraction step for simultaneously contracting the jacks 10 of all the poles P1 to Pm and an expansion step for expanding the jacks in order by hanging/cutting the poles right above part the jacks, and lowering the respective floors Fj (j>v) above the jacks 10 together with the load transfer beams 45 along the outer faces of the load transfer structures 40. The building frames other than the poles P of the respective lowered floors Fj are demolished in order with the jack-interposed floor Fv, and the load transfer beams 45 are removed from the floors Fj and are attached in order to the peripheral poles P in the section T on the floor F (j+1) right above. COPYRIGHT: (C)2009,JPO&INPIT