Ulma MK Structure, Руководство пользователя

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Construcción Construcción Construcción Construcción
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MK MK MK MK STRUCTURE STRUCTURE STRUCTURE STRUCTURE
1.2.
MK FORM CARRIERS MK FORM CARRIERS MK FORM CARRIERS MK FORM CARRIERS
The following types of form carriers can be erected with the MK system:
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Deck flange form carrier
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Parapet form carrier
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Vertical formwork carrier
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Cut-and-cover tunnel form carrier
1.2.1.
DECK FLANGE FORM CARRIER DECK FLANGE FORM CARRIER DECK FLANGE FORM CARRIER DECK FLANGE FORM CARRIER
In the case of metallic bridges which are made up of pre-cast components or of a pre-cast centre part, it is
common to build the wings in a subsequent stage. This can be done with deck flange form carriers. These are
heavy-duty form carriers as the jacks are able to withstand a maximum load of approximately 360 kN. Due to the
load borne by the structure, the forward-moving of the form carrier is achieved by means of pull or push auxiliary
devices.
A deck flange form carrier with these properties usually consists of the following parts:
o
Main structure: structure bearing the concrete load.
o
Forward-moving structure: secondary structure which effects the movement and bears the forces
during such.
o
Bracing: components that withstand wind effects and transverse movements.
o
Formwork: part in touch with the concrete shaping it, allowing its adjustment and opening if this is
required for the movement of the structure.
o
Rolling and levelling system: components that enable the rolling of the truss and its levelling at a
specific place, as well as its stripping.
o
Safety items and access: walkway platforms, handrails etc., depending on the requirements of each
project.