Box Girder Steel Formwork

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BOX GIRDER

External formwork of 32/24 meters post-tensioning concrete pre-faricated box girder is divided into sliding mode and
rolling mode; the side form of the first mode can move from one bottom form to the other one which increases the
utilization rate, and decrease the investment for the formwork during construction; the side form of the second mode
is relatively fixed according to the bottom form, and could be dismantled by revolving, which improve the efficiency
of formwork closure.The side formwork unit is mainly 6 meters, the design of the sructure is compact
and reasonable with beautiful and smooth appearance.

■  All the edges of ecternal formwork panels for the box girder have been milled, which ensure

the assembly precision to avoid the leakage of the concrete

■  The bottom formwork unit is 3 meters to facilitate the installation and anti-arch adjustment

■  The bulkhead is designed to envelop the sideform,which can be wholely assembled, making the removal, installation and adjustment much easier.

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Q:According to the experience, who knows the construction area and template, plate, column, beam volume, steel, etc.!
Shear wall structure (such as small high-rise, high-rise) per square meter area of the content of the building: the template to expand the area of about 3.3 to 3.6 square meters,About 0.5 cubic meters of concrete, steel bar about 60 to 75Kg.
Q:How to calculate the length of the beam, beam template area
The two cross KL76, distance of each cross axis of the pillar width is Jingchang (beam by beam, high *2+ Liang Kuan)
Q:How to calculate the foundation beam, template, and cushion.
Calculation of foundation beam! When the cap is to be deducted beam
Q:Calculation of the area of beam formwork
Wall: exterior wall from the upper surface of the floor to the upper surface of the floor, the inner wall is considered to the upper floor (beam) under the surface, within 0.3 square meters of the area of the hole is not deducted, do not increase the side wall template, the use of large formwork when the hole is not deducted
Q:More than the number of square cross-section of the beam high formwork
For the height of more than 8m, the total load is greater than 15kN/m2, or the central line load greater than 20kN/m of the template support system needs to organize expert demonstration".
Q:What are the middle and side beams in the T beam template?
So there are [side span beam], [cross the middle beam], [medium span beam], [across the edge beam] four kinds of distinction. The amount of concrete, steel is a little different
Q:How to support 6m arc beam template how to set up?
After setting out in accordance with graphics support ah. If the curvature is large, it can be approximated by linear segmentation.
Q:Cast in situ floor and girder formwork can be removed a few days?
When the bottom formwork of the reinforced concrete slab with a span of 5m is removed, the concrete strength should be greater than or equal to 75% of the standard value of concrete cube compressive strength.
Q:What is the formula of beam slab formwork
Si=F*A*B, formula, F coefficient, A, length, B width or height.Such as triangle F=0.5, A for the bottom edge of the length, B is high.
Q:What is the area of the overlap between columns and beams, beams and beams!
Cross beam and beam cross section is not a template overlap

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