مبادئ تصميم اساسات القواعد الشريطية... - الهندسة ...
#Prestressed # concrete Prestressed concrete is a form of concrete us... ed in construction. It is substantially "prestressed" (compressed) during its fabrication, in a manner that strengthens it against tensile forces which will exist when in service.This compression is produced by the tensioning of high-strength "tendons" located within or adjacent to the concrete and is done to improve the ...