公开(公告)号：US3577504A

公开(公告)日：1971-05-04

申请号：US3577504D

申请日：1969-02-28

申请人： ABRAHAM ICCHOK LIPSKI

发明人： LIPSKI ABRAHAM ICCHOK

IPC分类号： B28B23/04 ,  B28B23/06 ,  B28B23/22 ,  E04C3/20 ,  E04C3/26 ,  B28B1/02 ,  F04B1/02 ,  F04B1/08

CPC分类号： B28B23/22 ,  B28B23/046 ,  B28B23/06 ,  E04C3/20 ,  E04C3/205 ,  E04C3/26

摘要： A METHOD FOR MANUFACTURING A GIRDER WITH A THIN WEB IN REINFORCED OR PRESTRESSED CONCRETE, THE WEB THICKNESS BEING 2 CM. PLUS 6% OF THE WIDTH UP TO 50 CM. WIDTH AND 5 CM. PLUS 2.5% OF THE WIDTH THEREAFTER. SAID THIN WEB IS PREFABRICATED INDEPENDENTLY OF AT LEAST ONE FLANGE

IN A HORIZONTAL FLAT MOULD. SAID FLANGES ARE THEREAFTER INTEGRATED WITH SAID THIN WEB.