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I( I <br /> r.' -?.--"..2--'' ''r <br /> pp r `T 2601; l U <br /> : „nr V <br /> The general requirements for the elements that are part of the anchoring base slab are: <br /> Concrete: HA-25, with granulometry of between 30/40 mm and water-cement ratio S. 0.45. <br /> During the setting time, these constructions must be kept damp for 3 days minimum. We do <br /> not recommend the crane erection till the reinforced concrete set and has acquired at least 70 <br /> %of final resistance. <br /> Cage for reinforcement: cage B 500 5,it must be in a good condition and free of rust. <br /> 1.1.CONSTRUCTION OF THE FOUNDATION PAD AND PROCEDURE S17-S21 TO <br /> FOLLOW <br /> 1.- Excavate a hole with the right dimensions according to the technical specifications of the <br /> ground and the reactions that the crane may transmit to the ground,depending on the specific <br /> assembly project of a tower crane. <br /> 2.-Place the foundation anchor in the inside of the hole made,and center it according to the <br /> characteristics of the calculated concrete slab given by the engineering calculations, and <br /> wedge the anchor in order to obtain a perfect leveling. <br /> r, 1 <br /> /'�f <br /> - i..- rf t ;%' <br /> •41 . t,1'1om,.• . :; <br /> it- -,":-- -,, <br /> Z CHAPTER 5A-ERECTION WITH ANCHOR VERSION <br /> February 2015_Rev.0.1 <br />