Patent · US Expired

Laminated sectional girder of fiber-reinforced materials

US4177306A · kind A · utility

89Cited by

6References

11Claims

0Family size

Assignee

Messerschmitt Bolkow Blohm GmbH · DE

Inventors

Ralf-Thilo Schulz · Putzbrunn, DE
Klaus Brunsch · Feldkirchen-Westerham, DE
Ludwig Lemmer · Ottobrunn, DE

Key dates

Filing date	May 12, 1977
Grant date	Dec 4, 1979
Priority date	—
Expiry date	May 12, 1997

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/249924
WIPO fieldOther special machines
WIPO sectorMechanical engineering

Abstract

Laminated sectional girders having webs and flanges may be formed to incre the shear stresses thereof by including as a structural part of the girder at least one connecting layer extending through both the flanges and webs of the girder and made of prefabricated sections with additional girder layers being arranged adjacent the sections of the connecting layer. The additional adjacent layers may comprise both fiber-reinforced material layers forming the laminated flanges of the girder as well as the webs thereof. The additional layers may be arranged either between prefabricated sections of the connecting layer or they may be arranged outside of the prefabricated sections.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.