Patent · US Expired

Scaffolding girder for constructing multiple-span bridge structures movable from one bridge to another

US4478773A · kind A · utility

7Cited by

3References

4Claims

0Family size

Assignee

Dyckerhoff & Widmann Aktiengesellschaft · DE

Inventors

Wilhelm Buchler · Haar, DE
Karl-Hermann Mischlau · Munich, DE

Key dates

Filing date	Aug 8, 1980
Grant date	Oct 23, 1984
Priority date	—
Expiry date	Aug 8, 2000

Classification

Technology area (CPC E)Fixed Constructions
CPC primaryE01D2101/28
WIPO fieldCivil engineering
WIPO sectorOther fields

Abstract

In a multiple-span bridge structure with side-by-side bridges, a scaffolding girder-formwork assembly is movable in the longitudinal direction of each bridge for constructing individual sections of the superstructure over support piers. After use on one bridge, the scaffolding girder-formwork assembly is movable to the other bridge by first rotating it about a vertical axis from the longitudinal direction of the bridge to the transverse direction while the assembly is centered over a pier of the one bridge. A support for the assembly is moved over a pier on the other bridge. Then the assembly is moved in the transverse direction until it is centered over the pier of the other bridge. Subsequently, the assembly is rotated into the longitudinal direction of the other bridge in position for constructing sections of the superstructure.

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