A bridging system

A method of bridging a space comprising the steps of:

• a) providing a bridging system, a bridge, and a trolley, the bridge comprising a bridge deck having at least two pre-formed bridge sections, each bridge section having structural rigidity provided by at least two stringers connected together by at least one floor beam, and a connector for releasably connecting the at least two bridge sections together, the trolley including a set of wheels with a track width configured such that in use with the trolley located on the bridge deck, at least one wheel contacts one stringer and at least one other wheel contacts another stringer, the system further including guides for maintaining the at least one wheel in contact with the one stringer and for maintaining the at least one other wheel in contact with one of the other at least two stringers such that the trolley and bridge deck remain in contact while moving relative to, or with, one another for the launching of the bridge deck over a space to be bridged, the trolley being configured to carry goods and/or personnel over, and along, the bridge deck after the bridge has been positioned over the space to be bridged;
• b) assembling the bridge on one side of the space to be bridged;
• and
• c) arranging the trolley with the wheels uppermost and sliding the assembled bridge out over the space until the bridge spans the space.

A method of bridging a space comprising the steps of:

• a) providing a bridging system, a bridge, and a trolley, the bridge comprising a bridge deck having at least two pre-formed bridge sections, each bridge section having structural rigidity provided by at least two stringers connected together by at least one floor beam, and a connector for releasably connecting the at least two bridge sections together, the trolley including a set of wheels with a track width configured such that in use with the trolley located on the bridge deck, at least one wheel contacts one stringer and at least one other wheel contacts another stringer, the system further including guides for maintaining the at least one wheel in contact with the one stringer and for maintaining the at least one other wheel in contact with one of the other at least two stringers such that the trolley and bridge deck remain in contact while moving relative to, or with, one another for the launching of the bridge deck over a space to be bridged, the trolley being configured to carry goods and/or personnel over, and along, the bridge deck after the bridge has been positioned over the space to be bridged;
• b) part-assembling the bridge on one side of the space to be bridged;
• and
• c) arranging the trolley with the wheels uppermost and sliding the part-assembled bridge out over the space, and adding further bridge sections, columns, and tensioning members, and further launching the extended bridge structure until the bridge spans the space.