Study of Design of Cast-in-situ Bracket for Ultra-high Cable Tower with Large Span and Large Volume Beam
For the cast-in-place construction of large-span and large volume crossbeams in ultra-high cable towers,the conventional floor standing support system has disadvantages such as complex con-struction,long construction period,high cost,and high safety risks.Its use is limited,and it is nec-essary to optimize it.To address this issue,based on engineering examples,a high-altitude cast-in-place support system is proposed,which consists of large diagonal leg bracket,support crossbeam,specially made Bailey beam and buckle bracket.Numerical simulation and on-site application are used to analyze the stress and application effect of the support system.The results indicate that the strength and stiffness of the support system meet the requirements.Compared with the floor standing support system,it has the advantages of convenient construction,saving time and cost,reducing high-altitude operations,and improving construction safety,with good applicability.
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