FIELD: construction.
SUBSTANCE: invention relates to bridge building and can be used for fast arrangement of bridge crossings. In a mobile extensible bridge consisting minimum of two interconnected sections, each of which contains at least two located in parallel planes lateral frame elements in the form of two beams of equal length, pivotally connected to each other in their geometrical centres by “scissors” type, i.e. with a possibility to turn around the axis perpendicular to the common plane formed by them, the upper and lower ends of beams of one side frame element are connected in pairs with top and bottom ends of the other side frame element by means of rigid links; the sections are connected to each other by hinges in the respective ends of side frame elements, while to rigid links, connecting opposite lower ends of beams of two adjacent frame elements, there is attached, providing for a possibility to turn around them, a bridge floor consisting of two parts pivotally connected between themselves along the axis perpendicular to the direction of movement across the bridge. Upper and lower ends of beams in the side frame element can be additionally pivotally connected in pairs by braces, each of which consists of two equal in length parts, pivotally connected with a possibility of fixation in various positions.
EFFECT: invention provides for compactness of the bridge structure in folded state, thereby allowing its mobile delivery to the required place, as well as simplicity and speed of its installation in the place of the crossing arrangement.
2 cl, 2 dwg
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Authors
Dates
2016-06-20—Published
2015-02-26—Filed