The decision of technological equipment for large dimension frameworks lifting

摘要

This publication has recommendation for choosing and applying the technological infrastructure equipment, which can improve the method of large dimension frameworks lifting in buildings and constructions erection. As experimental researches and construction practice showed while increasing the ceiling panel thickness till 350-450 mm the adhesion force is enhanced and can reach 50-70% by ceiling panel mass. In that context the necessity to develop the method of adhesion force determination and find technological equipment for decreasing this force is appeared purposely for enhancing the operational efficiency of load weight-lifting equipment. The experimental researches were occurred for purpose to find out the dependence of adhesion force off amount of factors. The analytic expression, allowing calculating adhesion force, was derived after mathematical elaboration of results.