Concrete Pre-faricated Box Girder Formwork

Concrete Pre-faricated Box Girder Formwork

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BOX GIRDER

Brief Introduction

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.

Features

■ 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.

Concrete Pre-faricated Box Girder Formwork

Q:What is the demolition order of the construction template: 1 demolition vertical face template, should be carried out from top to bottom; demolition of the larger span of the beam pillar, should start from the middle, respectively, to the two ends.2 demolition of beams and floor bottom mold, should loosen the wedge or lower bracket, then by block or patch removal

Q:What is a large volume template? How much is the cross section of the beam, belonging to the large volume template?: The above construction total load of more than 10kN/m2, or concentrated line load greater than 15kN/m template support system that belongs to the template, if you do not consider other loads, considering the single weight, according to concrete 25000KG/m3 calculation, then the beam section area of 0.4m2 belongs to the template, such as 400*1000, 300*1350, 500*800 etc.. Central line loads can be calculated in similar ways.

Q:How to calculate the amount of beam template? FiveKL2: cross section size of 0.3*0.6, thickness of the 0.12 beams, 10.9 JingchangAsk: how to calculate the amount of formwork works? How to calculate the height of support?Calculation formula: According to the calculation of the expansion area, the height of support according to the bottom elevation

Q:What is the meaning of the steel beam overhead on the top of the beam formwork: So in the form of the frame up binding, binding with a crane to lift the steel beam, the following overhead with the wood out of the beam of steel on the template

Q:More than the number of square cross-section of the beam high formwork: According to the "dangerous method" sub project safety management of the construction quality of [2009]87, the height of more than 5m, the total construction loads greater than 10kN/m2, or the template support system concentrated line load greater than 15kN/m to prepare special construction scheme

Q:Seeking beam, plate template engineering quantity: Plate template (bottom area): (2.6*3- wall thickness) * (2.4*3- wall thickness) - (2.4*3- wall thickness) *0.2*2 [main beam] - (2.6*3- wall thickness) *0.25*2 [sub beam]

Q:For example, the 0.14 long girder thick 400x600 26 how to calculate the amount of engineering template: Column according to the circumference of the column by column height, Liang Anliang on both sides of the beam after the end of the beam length, according to the net floor area of the room (excluding wall width or Liang Kuan) calculation.

Q:When the main beam and secondary beam connection, calculate the area of the template is good, there is no simple method: From the main beam to break, that is, the secondary beam axis to the axis of the long axis of the main axis of the beam to reduce the length of the beam width

Q:How to calculate the intersection of rectangular column and beam: Plate and beam plate:(1) the calculation of the area of beam and plate according to the area of beam and plate;(2): high beam plate girders according to the amount of height of sheet thickness calculation;(3) a long beam plate girders: beam to column connection, the length of the beam to column side; girder transfer, beam to beam side.(4) the calculation of the area of the plate and column cap without beam(5) the area of the beam connection is not deducted, and the beam head area is not increased

Q:There are times when the beam is not to deduct the secondary beam on the main part of the beam?: The general situation is calculated according to the contact area between the concrete and the template

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