Optimal Design of Axially Loaded RC Columns

OPTIMAL PERFORMANCE-BASED SEISMIC DESIGN OF COMPOSITE BUILDING FRAMES WITH RC COLUMNS AND STEEL BEAMS

Composite RCS building frames integrate reinforced concrete columns with structural steel beams to provide an efficient solution for the design and construction of earthquake-resisting structures. In this paper, an optimization framework is developed for performance-based seismic design of planar RCS moment resisting frames. The objective functions are defined as minimizing the construction cos...

Fire behavior of axially loaded slender high strength concrete - filled tubular columns

This paper describes sixteen fire tests conducted on slender circular hollow section columns filled with normal and high strength concrete, subjected to concentric axial loads. The test parameters were the nominal strength of concrete (30 and 80 MPa), the infilling type (plain concrete, reinforced concrete and steel fiber reinforced concrete) and the axial load level (20% and 40%). The columns ...

Axially - Loaded Centrifuge Pile Tests

Optimal Design Methodology for Dividing Wall Columns

The dividing wall column, DWC, is a thermally coupled sequence that can perform the separation of fluid mixtures with reduced energy consumption, but also decreasing the capital costs associated. Several authors have developed design procedures for this kind of sequence, using short methodologies or optimization strategies. The use of short procedures is easy and fast, but, in the most of the c...

Optimal Design Methodology for Azeotropic Distillation Columns

We develop a short and optimal design methodology for multicomponent mixtures, based on the concept of minimum difference in composition. The minimum reflux ratio is calculated through an analytical procedure, which allowing their use in multicomponent mixtures. The procedure also includes a simple criterion to optimize the structural design of the column, without increasing energy consumption....