钢结构吊装方案2（Hoisting plan of steel structure 2）.doc

钢结构吊装方案2（Hoisting plan of steel structure 2） When the lifting scheme of the steel structures 2.txt your mother you are not the people who throw up the placenta? Dont put the small shrimp improper seafood. Dont put the small shrimp improper seafood. When the first single lifting roof, the roof hanging from the ground 500mm, then lower roof crane hoisting position, the hook will rise to more than 300mm hanging roof tops, and then slow down to the top of the roof, para. The roof should be para axis positioning buildings shall prevail, before registration should advance building axis with theodolite on top surface. Para, temporary fixed immediately, then the crane hook. We should attach great importance to the temporary fixed roof, because the roof is aligned monolithic structure lateral stiffness is poor. Temporary fixed roof frame first, available four hawsers from both sides hold. If the first lifting wind column can be connected with the wind column roof. Second specimens of each beam truss roof and the roof (available tool support) temporary corrector is fixed on the front of a roof. At least two specimens of each roof truss corrector. 4, roof correction content and finally fixed roof is to check and correct the verticality with the theodolite plumb check calibration roof corrector or cable wind rope. Check the roof with theodolite verticality, the installation of three gauge truss (one installed in the roof of the central, two installed in the roof, since both ends) geometric center truss line 500mm, make a mark in the caliper. Then, from the roof of the ground at the midline 500mm, a theodolite, check the three signs on the caliper is in the same vertical plane. Using vertical ball check roof verticality, setting and theodolite examination method of caliper sign same sign from the geometric center roof line distance 300mm. between the ends of a line through the caliper sign, the sign from the central caliper to hang down the ball, check the mark three caliper is