Triangular Form Traveller

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TRIANGULAR FORM TRAVELLER

Trianngular form traveler has the advantages of low gravity of front
trancerse beam, safe & easy operation, easy fixing, and safty during
walking, etc..
During the designing of the form traveller, we always provide
different modes of traction, such as hydraulic pushing mode or
pulling mode, and chain hoist mode, etc. to the constructors for their
choice.
The design of the form traveller could be divided into two types:
external sliding girder and self-moving exteral formwork according to
de construction conditions. When the site condition does not allow
to remove the form traveller at the closure part which have to go
backwards to segment, the second type is suggested.

● Low gravity of front trancerse beam

● Applicable to large-scale stay-cable cantilever casting bridge with wide bridge deck

● Safe & easy operation, easy fixing, and safty during walking

● Big operational space under the main frame, and easy installation and removal

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Q:Seven techniques of hanging basket
10.4. rack instrument. The control box girder concrete axis and elevation is very important, must set up the theodolite and leveling instrument, to observe at any time by professional technicians, such as the discovery of axis deviation, timely adjustment in the front end of the guide beam hoist by setting. If the elevation deviation is found, it is adjusted by the pull rod on the front crossbeam. The adjustment should be carried out before the initial setting of the concrete;
Q:Management measures of hanging basket
The 3#~10# box girder of the bridge is hanging up and down vertically, so the safety management is more important. In the implementation of safety management, focus on the following work:
Q:Can the vertical prestress of the hanging basket be tensioned after the subsequent section construction?
Prestressed concrete structure, before the load in advance, put pressure on it, in the external load when the concrete tensile stress compressive stress produced in order to offset or reduce the load due to the tensile stress, the structure used in the normal circumstances does not crack or crack late.
Q:What are the key processes of hanging basket construction
5, construction of prestressed beam shape control; 6, 7; and the closure above and the construction of system transformation are met according to arrangement of students problems in practical work and, for reference, if there is a problem, please timely communication.
Q:Construction scheme of hanging basket of cable stayed bridge
Engineering surveyThe main bridge of the Yellow River bridge is a six cable-stayed bridge with a main span of seven towers and double cable planes. The span of the bridge is 85.12+6 * 140+85.12m. The main beam is made up of a single box and three section variable section PC continuous beam, the height of the beam at the fulcrum is 5m, the height of the middle span beam is 2.5m, and the height of the beam is in the range of 1.6 133m in the middle of the span. Dingkuan 37.4m box girder, bottom width by the supports of the 16.5m gradient across the 28.408m.
Q:What is the meaning of hanging basket in construction
Refers to the outdoor decoration of the basket.
Q:When hanging blue construction, middle span closure, why must the counterweight
The carrying capacity of the hanging basket depends on the maximum weight of the cast-in-place section
Q:Summary of hanging basket construction:
Pay attention to the durability of the cable, the necessary measures in the protection.
Q:Is hanging basket equipment special equipment? Need to record it?
Special equipment regulations on safety supervision of special equipment is the safety of life, the risk of large boilers, air compressor and the air storage tank, tunnel construction hoisting machinery (construction elevator, tyre crane, crawler crane, gantry crane, tower crane, bridge machine), hanging basket construction equipment etc..
Q:After the completion of prestressed tension grouting on the basket can move forward
[prestressed grouting is not completed after the hanging basket forward is not allowed] duct grouting has two main purposes: one is to protect the steel wire no rust, prolong the service life of structure, so the grouting be plump and compact; two is as a medium in relaxation steel strand, to transfer beam a part of stress.

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