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The use of renewable energy sources as an alternative to fossil fuels is increasingly present worldwide. In this context, Romania has committed to increasing the share of solar energy at the national level. This is in line with the European Union's concerns about energy efficiency. The lowland and low hills of the southern and south-eastern parts of the country are the most suitable for such an approach. So is the south part of Prahova county, mainly in the plain unit, which occupies the southern third. Prahova Co...

Development of high strength concrete has been continuous over the years, its production becoming available at competitive prices to the construction industry, thus moving away from being a novelty product. Although high-strength concrete properties have been widely studied for nearly 100 years, currently available design standards for concrete structures contain stipulations based on research conducted on concrete with lower grades than those available today. The modulus of elasticity is a very important mechanic...

An innovative concept for design and detailing of precast concrete frame structures is analyzed under accidental seismic-type loading. The new detailing of post-tensioned assembled structures derives from the special hybrid moment frames as defined in the ACI T1.2-03 standard. The alternative detailing of special reinforcements, named modified special hybrid joints, are bondless with respect to both column and beams. The model represents a corner of an actual multistoried structure, cropped in the middle of the be...