公开(公告)号：FR2544355A1

公开(公告)日：1984-10-19

申请号：FR8306022

申请日：1983-04-13

Applicant: BOUYGUES SA

Inventor： RICHARD PIERRE ,  GOULESCO NICOLAS

IPC: E02D23/16 ,  E02D29/06 ,  E02D27/52

公开(公告)号：CA1176071A

公开(公告)日：1984-10-16

申请号：CA390922

申请日：1981-11-25

Applicant: BOUYGUES SA

Inventor： RICHARD PIERRE

IPC: E01D2/00 ,  E01D2/04 ,  E01D19/12 ,  E01D21/00 ,  E04B1/19 ,  E04C2/34 ,  E04C3/20

Abstract: This invention relates to a prestressed concrete structure which behaves like a hollowed out slab. The structure combines a lattice work structure and a prestress by external cable, maximally optimizing the advantages of these two techniques. The Figure represents a part of the floor of a bridge according to the present invention. The floor comprises to tables 6 and 7 which are joined by a lattice work composed of pyramids P. Prestressing cables 8, 8' and 9' pass between the tables outside the concrete of the bars of the pyramids. The present invention is used for the construction of bridges, roofings and floors. Figure 15

公开(公告)号：CA1159608A

公开(公告)日：1984-01-03

申请号：CA390923

申请日：1981-11-25

Applicant: BOUYGUES SA

Inventor： RICHARD PIERRE

IPC: E01D21/00 ,  E01D21/10 ,  E01D1/00

Abstract: This invention relates to the extension of a portion of a deck using deck segments , by means of a cable stayed beam resting on a front hinged support and on a rear support. In a first phase, the overhanging segments are suspended from the beam in a manner known per se and the part 5a of the beam which is downstream of the front support 6 is maintained substantially steady . In a second phase, the segments are joined to said portion by producing a prestress accompanied by a progressive swinging movement by said rear part of the beam. This invention is used for the construction of the deck of a bridge. (Figure 6).

公开(公告)号：FR2494741A1

公开(公告)日：1982-05-28

申请号：FR8024984

申请日：1980-11-25

Applicant: BOUYGUES SA

Inventor： RICHARD PIERRE

IPC: E01D2/00 ,  E01D2/04 ,  E01D19/12 ,  E01D21/00 ,  E04B1/19 ,  E04C2/34 ,  E01D7/02 ,  E01D19/00 ,  E04G21/12

Abstract: This invention relates to a prestressed concrete structure which behaves like a hollowed out slab. The structure combines a lattice work structure and a prestress by external cable, maximally optimizing the advantages of these two techniques. The Figure represents a part of the floor of a bridge according to the present invention. The floor comprises two tables 6 and 7 which are joined by a lattice work composed of pyramids P. Prestressing cables 8, 8' and 9' pass between the tables outside the concrete of the bars of the pyramids. The present invention is used for the construction of bridges, roofings and floors.