Title:
Design of Concrete Structures for Thermal Effects
Author(s):
J. Pajuhesh
Publication:
Journal Proceedings
Volume:
77
Issue:
2
Appears on pages(s):
74-77
Keywords:
cracking (fracturing); expansion; loads (forces); moments; reinforced
concrete; relaxation (mechanics); stress-strain relationships; structural
design; thermal properties; thermal stresses.
DOI:
10.14359/6992
Date:
3/1/1980
Abstract:
Investigation of the thermal relaxation problem is extended beyond an earlier paper by developing an interaction diagram type of solu tion for design of reinforced concrete sections subject to relaxing-type loading (such as effects of thermal force and moment) in addition to sustained-type loading (such as vertical loads). The formulation is presented for a parabolic stress-strain relation for concrete and a given set of design criteria. The formulation of the solution is generalized to make the interaction diagram approach more readily available, and samples of specific diagrams are shown. Finally, a comparative study is made for a numerical example to indicate the importance of considering thermal effects.