Cause of the Floor's Crack in the Large Locks Built on Soft Foundations

Abstract

The cause of longitudinal cracks on the top of the large locks built on soft foundations can’t be explained by general design methods. Based on the analysis of influence of foundation elastic rebound and concrete hardening on the response of elastic foundation beam, the paper thinks it is an important cause that designers ignore the above factors of the construction process, and considering the worst case, and suggests designers should ignore the affection of the lock floor’s deadweight when computing the negative moment.