Revolving Dismantled Box Girder 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:What are the building structure of the template
The template of the beam can be completed in two or once. The two is complete, first beam bottom mould, then binding steel beam and plate, and side template; a beam bottom and side is template template and template to support end, then lashing steel beam on the template, binding after the beam falls on the beam within the template, and then tie plate reinforced.
Q:Rules for calculation of plate and beam formwork
Plate side mode *2 is the circumference of the board (minus column protruding part) multiplied by the thickness of the plate 0.1M
Q:According to the experience, who knows the construction area and template, plate, column, beam volume, steel, etc.!
Multi storey residential building structure of each floor area of square meters of content: the template to expand the area of about 2.4 to 2.9 square meters, concrete about 0.42 LiAbout 55 meters, reinforced to 65Kg.Basement floor area per square metre of content: the template to expand the area of about 2.4 to 3 square meters, concrete about 0.8 to 1.1 cubic meters,Steel bar about 125 to 170Kg.
Q:What is the wire mesh in front of the foundation beam
Wood can be used, but the surface is relatively smooth, after pouring, the bond will be worse; in this way, the construction is more convenient, leaving the rough concrete surface.
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:Beam plate template is composed of the bottom template and what
The template will be installed to expand into one piece, each piece of the area is Si=F*A*B, the formula, F coefficient
Q:Cast in situ floor and girder formwork can be removed a few days?
If it is summer side touch about 5-7 days is not a problem, the floor of the bottom mold principle that needs to be kept until the floor block to achieve strong design. After the test block strength test qualified to dismantle the bottom mold testing stations in concrete, but in the bottom die and the support under the premise of more than 7 days can be started in the above line ready on a layer of formwork, about 10 days can start pouring a layer of concrete.
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: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:How to calculate the amount of beam formwork
According to the calculation of the expansion area, the height of support according to the bottom elevation

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