Unconventional Rhombic Form Traveller

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UNCONVENTIONAL RHOMBIC FORM TRAVELLER

The front tranverse beam gravity height of unconventional rhombic
form traveller is betwwen the height of rhombic form traveler and
triangular form traveler. Comparing with rhombic form traveler and
triangular form traveler, it has the advantages of low gravity height,
more operational space than triangular form traveler, easy operation,
safety during walking and firm anchorage, etc..

● 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:Is hanging basket equipment special equipment? Need to record it?
After the completion of the installation of special equipment, construction safety supervision station shall apply for registration procedures
Q:Tensioning sequence of hanging basket
And then, at the top of the tension plate, the steel strand of the web, and then the residual steel beam of the beam, and finally the vertical finishing steel.
Q:Construction of extra large bridge
The installation span closure section hanging formwork installation, closure segment skeleton, formwork, steel banding, installation of prestressed pipe and the core concrete - span closure section, concrete curing - tension closure segment longitudinal, transverse and vertical prestressed grouting, demolition - span closure segment construction support.
Q:Hanging basket concrete pouring construction control points
Management points:1 the concrete pouring on both sides of the beam should be symmetrical and balanced, and the unbalanced construction load should not be greater than the allowable value;2 concrete should be rapid, continuous construction, in the first pouring of concrete before the first pouring all completed;3 the bottom plate, the web and the roof are symmetrically layered, and the layer thickness should not be greater than 30cm;4 continuously change the height of the hanging basket in the process of concrete pouring;5 the quality of the installation of the prestressed channel, unobstructed inspection and plugging treatment;6 the vibration of concrete should meet the requirements of construction technology, it is appropriate to use high-frequency attachment vibrator with vibration;7 the temperature and air content of concrete in mold meet the design requirements;8 test specimens of concrete strength and elastic modulus.
Q:Construction scheme of hanging basket
The construction scheme of rhombic truss type hanging basket: a brief introduction of the main structure of the main bridge of the North Branch bridge of Nanjing Second Yangtze River Bridge is 90+3*l65+90 (m) of the five span prestressed concrete continuous box girder. The main span of 165m is the first in the same type of bridge in china. According to the design requirements, the construction method needs to use cantilever pouring construction technology and then through the closure and system conversion into continuous beam
Q:Technical requirements for hanging baskets
The design of a hanging basket shall conform to the following requirements in addition to the requirements of strength, rigidity and stability:1 the total weight of the hanging basket shall not exceed 10% of the design weight.2 the safety factor and the safety factor of the self anchored system should not be less than 2 when the concrete is poured into the concrete section.3 protective measures should be taken when using the finishing thread reinforcing steel bar as suspender.
Q:Is there any paperwork and forms a traveler from USA to Dubai should look into?
Sure you need your Passport and Visa for Dubai
Q:The definition of hanging basket construction, historical background
With the development of material science and computer science, a lot of cable-stayed bridges have been built at home and abroad since the Stromsun bridge in 1956 started the apex of modern cable-stayed bridge. The cable-stayed bridge has been developed rapidly because of its advantages such as large span, good structural performance, simple construction, easy maintenance, low cost and attractive appearance.
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:When hanging blue construction, middle span closure, why must the counterweight
According to the previous design experience, the weight of the hanging basket is generally designed to load the 1/4 ~ 1/2, so the existence of the hanging basket will affect the internal force, linear.

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