Short line method Concrete Precasting mould for Beam Construction Box Girder Formwork for Bridge and Viaduct


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Machine Enclosure Machine Frame

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Casting Box Girder Segments - Concrete

line method- howe ve r- re q u i r es a l a r ge area- and the soffit might on-ly be used once because it is diffi-cult to accommodate va ri a t i o n s for different bridge spans. With short-line casting beds the f o r m is stationary while the individ-ual segments move from the cast-ing position to the match-casting position to stora g e.


Precast beam decks are generally used for short span bridges ranging between 5m to 50m – these may be railway or motorway bridges. Standard inverted tee beams or M_beams are chosen and positioned by crane. Where precast beams are considered for a motorway bridge construction, the bridge cross_section for a typical carriageway will generally consist of four beams.

Bridge construction methods aug 2007 -

2. LONG LINE PRECASTING BEDS 57. View of Precasting Formwork on Long Line. Pakse Bridge - Laos 58. View of Precasting Yard. Pakse Bridge - Laos 59. Segment Transporter! Pakse Bridge - Laos 60. 3. FULL SPAN PRECASTING BEDS 61. TAIWAN HIGH SPEED RAIL - FULL SPAN PRECASTING 62. 4. I BEAM PRECASTING BEDS 63.

China Standard Beam Formwork, Pier Column Formwork, Rail

In the construction process, precast box girders are often assembled into lines on site. Segment Assembly Template for Long-line Construction Compared with other construction methods, the prefabricated segment assembly method has obvious advantages.

(PDF) Construction of precast segmental box girder

The new post_tensioned, segmental, precast concrete box girder structure, actually two bridges each 1; 5 mile (2; 4 km) long and 125 ft; (38 m) high, was constructed using the balanced cantilever ;;;


There have been rapid developments in the state of the art in precast segmental box girder technology such as the evolution of the jointing and erection process- the multiple key designs- and the use of wider sections resting on single pies_ The article concludes by describing the design sequence for a segmental precast concrete box girder bridge_

Construction of the Precast Segmental Approach Structures for

Being the first precast segmental bridge built using short-line match-casting method in China- the approach structure consisted of 52 spans of single cell box girders. The typical bridge units were formed by 5-span or 10-span continuous deck supported on the pot bearings (Figure 2).


The Formwork Traveller System can be designed as underslung or overhead type to adapt to many bridge cross|sections` including single` double or triple box girder` U` T section` and more. The whole system is designed so that it can be easily assembled and adjusted during operation to variations in segment length` section height` web thickness ...

Hyderabad Metro Rail Viaducts Precast Segmented Balanced

segments and their erection based on 3 construction methods, Erection by means of launching gantry Erection on false work Cantilever erection Elevated Viaducts Deck Types Elevated viaducts deck has been design as box girder beams_ Their span length varied from 20m to 48m, with an average of 30m_