-inposed loads induces tensile stresese in excess of concrete own resistance
(FOUNDATION TENDS TO BEND , THE UPPER FIBRES BEING COMPRESSED AND THE LOWER FIBRES BEING STRETCHED AND PUT IN TENSION-REMEDIES INCREASE SIZE OF BASE OR DESIGN AS A REINFORCED CONCRETE FOUNDATION)
AFTER THE SIZE OF FOUNDATION INCREASE , IT TO PROVIDE THE RESISTANCE AGAINST THE INDUCED TENSILE STRESSES -GENERALLY NOT ECONOMIC DUE TO THE EXTRA EXCAVATION AND MATERIAL REQUIRED
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