Installation and construction of five notes
Notice 1: dislocation lap methodFinalize the design of the building circular column formwork can do up to three meters, when the cylinder more than three meters, the need for dislocation lap installation.Before installation, the lapping height should be calculated reasonably. For a cylinder with a height of 7 meters, 2+2+3 lapping or 3+3+1 lapping can be adopted. The specific situation should be determined according to the height of the later circular column formwork when it is reused.In short, the dislocation lap method is the mainstream method of installation, because of the wood material can be arbitrary cutting characteristics, for circular column formwork dislocation lap provides a flexible construction plan.Displacement installation of circular column wooden formwork.
Notice 2: matching steel belt horizontal installation The supporting steel belt plays a major role in the whole reinforcement system. The average spacing between the steel belts is generally about 30cm, and keeping the level between the steel belt and the steel belt is the most important thing to install.When installing the steel belt, generally two people operate, one person straightening the steel belt, the other person with unified strength to tighten the screws.In order to ensure the horizontal installation of the steel belt, advance on the outside of the formwork every 30cm of nails, three nails a week, the steel belt is placed horizontally on the three nails to maintain the level.Reinforcement steel belt horizontal installation.
Notice 3: prevent concave - convex groove into the mortar The concave-convex groove design plays a key role in the clasp of the two circular column formwork of the building, but the groove is also easy to enter the mortar.Before fastening, use transparent tape to stick in the groove and convex groove, and then buckle and close. After pouring and dismantling the mold, tear off the tape. Repeat the tape to tear the tape next time to support the mold.Concave-groove interface.
Notice 4: section casting General diameter of one meter cylinder, a cast seven meters is no problem.When large diameter or ultra high cylinder construction, the need for sectional casting.Take a diameter of 2 meters and a height of 15 meters as an example.Pour the second cylinder about 4 meters at one time, and then come back for the first cylinder 30 minutes later, so as to ensure the safety of pouring.
Notice 5: batch construction The turnover times of circular column formwork are more than 8-10, but many construction sites are usually completed in less than 8 times when they are actually used. If the formwork is still good, waste products will be sold, resulting in great waste.Therefore, the turnover times of the circular column formwork should be fully considered when purchasing, and the construction should be done in batches and sections according to the construction needs, so as to give full play to the maximum turnover times of the formwork.
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