2217 On the Creep Stresses of Statically Indeterminate Prestressed Concrete Structure(Structures)

the effect of taftan pozzolan on the compressive strength of concrete in the environmental conditions of oman sea (chabahar port)

cement is an essential ingredient in the concrete buildings. for production of cement considerable amount of fossil fuel and electrical energy is consumed. on the other hand for generating one tone of portland cement, nearly one ton of carbon dioxide is released. it shows that 7 percent of the total released carbon dioxide in the world relates to the cement industry. considering ecological issu...

Damage in Prestressed Concrete Structures due to Creep and Shrinkage of Concrete

The theory of concrete creep and shrinkage has not been regarded as part of what has been understood as damage mechanics. However, these inelastic phenomena do result in significant damages to structures, including not only distributed cracking, which is damage in classical sense, but also damage in the form of excessive deflection which puts the structure out of service. It is for this reason ...

Prestressed Concrete Piles

A state of the art presentation on prestressed piling as used throughout the world is discussed in this General Report to the FIP Symposium on Mass-Produced Prestressed Precast Elements in Madrid, Spain, May 1968. Historical information, design data and notes along with manufacturing techniques, installation practices, discussion of problems and failures and a complete bibliography are all cove...

Ductility of Prestressed and Partially Prestressed Concrete Beam Sections

D analyses of structures responding elastically to ground motions recorded during severe earthquakes have shown that the theoretical response inertia loads are generally significantly greater than the static design lateral loads recommended by codes. Hence, structures designed for the lateral earthquake loads recommended by codes can only survive severe earthquakes if they have sufficient ducti...

Cracking of Prestressed Concrete Containments