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STATIC ANALYSIS OF THE LOCK CHAMBER

Kataŕına Tvrdá

Abstract

Lock chambers are structures built on watercourses in places, where it is necessary to overcome sections with a large longitudinal slope. The method of determining the safety of the lock chamber and the static analysis, design and dimensioning of individual structural parts depend mainly on the type of chamber. Different criteria are used for chambers having side walls reinforced by slope, for chambers having walls made of anchored steel sheet piles, for walls on a high pile grate, and again others, for the side walls of the chamber made of heavy gravity walls. This paper deals with a static analysis of very frequently used lock chambers of the semi-frame type, in which stress and the overall stability of a separate part of the chamber, detached by transverse vertical joints, are determined together with determination of stress in the foundation and stress in the whole structure. We must, of course, take into analysis all possible types and ways of loading. Today, commercial programs based primarily on FEM are used for the static analysis of building structures. In this paper, the base plate of the lock chamber is solved by a specific flexibility method named by Zemockin. Due to the static load acting on the lock chamber, we calculated the continuous resistance load, bending moment and force at the edge between infinite and finite bending stiffness of the structure. At the end of the paper, some results of the solution of the half-frame type lock chamber, rested on a flexible subsoil, are presented.

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DOI resolver: doi.org/10.5593/sgem2020/3.1/s12.041

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