P style=”LINE-HEIGHT: 115%; TEXT-ALIGN: justify”>Bolt model is manufactured in steel to withstand the weight of the bolts. The model must be engraved inside centre lines to be placed in the correct position.
The model is flanged on the aluminum formwork beams. The bundles are secure on the shutter of formwork with a Z – Bar holding-down Assembly and wood.
The Centre of the bolts was marked on each side of the forms and a chain line was tense throughout.
Then, we used a plumb bob or spirit level to align the line string with the centers drawn on the model.
To make this position the bolts enough close, but not enough for a use of mines close. Surveyors later will come and check the centers of bolt and each bolt position.
The total weight of the bolt is 480 kg. It is essential for the Assembly positioned as close as possible so that it makes easier to lever in position Spot-On with the surveyor. For security reasons, it was deemed necessary to lift these bolts in one at a time with a crane. After the bolts are, polystyrene Tubes of tolerance must be added to the bottom of the bolts to the proper height. The height was established and engraved on the shutter of formwork, then transferred to the bolts with a spirit level. The shear key has been added then. After bottom fold in the form template has been added. An Assembly was hanging made with wood and z-bars have been used. Z bars were used to liquidate the shear until it but closely key in the wood of the spreader bar holding firmly position.
Z bars are also used to “Crack” shear key, after the concrete lifting anchors is poured. Breaking the shear key, while the concrete is soft (don't wait till the next day).