Concrete Pre-faricated Box Girder

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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.

Q:nan
According to the different support parts are divided into four kinds
Q:nan
Remove from the ends of beams began to load, is Liang Hezhu nodes under pure shear, a shear deformation from the middle split beam gradually remove support, after the load is gradually increased, the shear in the support under the protection of gradually increasing load, small impact.
Q:nan
Above the control points on the scaffold steel pipe before supporting formwork
Q:The section size of the beam is 200 x 400 the size of the board is 4500 x 4000 plate thickness of the formula for 120 - a rookie
Building template:Building template is a temporary support structure is made according to the design requirements, the concrete structure components, according to the position and size of the provisions of forming, maintaining its correct position, external loads and under construction template gravity and acting on the. The purpose of template engineering is to ensure the quality of concrete engineering and construction safety, speed up the construction progress and reduce the cost of the project.This paper introduces the construction formwork structure of cast-in-place concrete structure construction, which is mainly composed of three parts: the panel, the supporting structure and the connecting parts. The panel is in direct contact with the bearing plates of concrete; supporting structure is a temporary structure supporting panel, concrete and construction load, ensure the construction template are firmly combined, do not deform and damage; the connecting piece is connected to the panel and the supporting parts of the whole structure.Building formwork is the concrete pouring forming shell and support, according to the nature of the material can be divided into building template, building wood plywood, covered with plastic board, multilayer board, double-sided adhesive, double-sided coated building template. According to the construction process, the construction formwork can be divided into the cast in place concrete formwork, the pre assembled template, the large formwork, the jump formwork and so on.
Q:The bottom of the board 12.24*7.44 why not *2 floor 12.24 of the two of the 7.44 also have the plate side mode *2 is * of the two or both
The board side mode *2 is the circumference of the board (minus column protruding part) multiplied by the thickness of the plate 0.1m.
Q:nan
The foundation beam without the beam side template of this code, the foundation beam is not calculated at the bottom of the template, select the basis of the beam on the beam directly to the template area.
Q:Is there a beam plate template that is used to calculate the engineering quantity of the beam formwork or the engineering quantity of the beam and the plate? Urgent thank you
As long as the board and the board together (usually for the plate in the beam), together with the count; not together with the other
Q:For example, a beam 200*400, length 5000Plate thickness 1005000*5000The area of the template is1, (0.2+0.3*2) *5+5*52, 0.3*2*5+5*5Which is right
Floor 12.24*7.44 is the bottom of the entire plate (including the bottom of the beam), and then subtract the column area. Board only need to calculate the bottom and side die on the line, do not use *2.
Q:nan
The beam of the beam plate is made up of 3 face plates, a bottom die and two side moulds
Q:nan
(1) single beam, the support of the template is not deducted, the end of the template does not increase. Beam length(2) when the beam and beam intersect, the area of the main girder is not deducted.(3) beam, plate connection, beam wall template to plate ping.

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