Podstawy teorii pełzania ustrojów hiperstatycznych wstępnie sprężonych

The foundations of the theory of creep of statically indeterminate prestressed structures Dealt with in this paper Pare the foundations of a general theory of creep in statically indeterminate prestressed structures, in particular the derivation of systems of equations enabling the determination of...

Full description

Saved in:
Bibliographic Details
Main Author: Czesław EIMER
Format: Article
Language:English
Published: Institute of Fundamental Technological Research 1957-08-01
Series:Engineering Transactions
Online Access:https://et.ippt.pan.pl/index.php/et/article/view/3301
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The foundations of the theory of creep of statically indeterminate prestressed structures Dealt with in this paper Pare the foundations of a general theory of creep in statically indeterminate prestressed structures, in particular the derivation of systems of equations enabling the determination of the redundant quantities as functions of time; a general discussion of methods for solving such equations is included. The considerations are based on the Volterra-Boltzmann general theory of linear creep, leading to systems of linear equations [see the system (2.21)]. On the basis of accurate solutions, consideration is given to the principal ways in which the theory can be simplified. These ways are: simplification of the equations of internal statical indeterminacy (in the case of concentrated reinforcement); simplification of the equations of external statical indeterminacy (continuous beams); transition to a homogeneous system (together with the case of prestressing reinforcement allowed to slide in its channels); and replacement of integral equations by differential equations. No practical examples are solved in this in­vestigation. They will constitute the subject of a separate paper.
ISSN:0867-888X
2450-8071