This paper presents a procedure for the assessment of the residual structural capacity of corrosion-affected RC members due to bond deterioration and reduction of the cross-section of the reinforcing steel bars, taking the reinforcement layout and details into account.
It is noticeable that the area of cross-shaped section for the reinforcing steel section is equal to IPB 200 standard steel profile.
Based on a rating scale of 0 4, with 0 being the best condition and 4 being the worst condition, rust staining on the surface of the specimens and the level of section loss in the reinforcing steel were each evaluated.
For example, RS1A is a PSC member that has rectangular section, the sectional area of 192 in2 (120,000 mm2), the reinforcing index of 0.1, and the effective prestress of 0.5 f pu.
The plain language of another section of the statute reinforces this conclusion.
Then, to investigate the effect of the reinforcing steel section, three types of circular and square CFT sections, each reinforced by IPB120, IPB160, and IPB200 have been analyzed.
Under cyclic displacement history, it was observed that the use of cross-shaped reinforcing steel section causes a higher level of energy dissipation and the moment of inertia of the reinforcing steel sections was found to be the most significant parameter affecting the hysteresis behavior of SRCFT columns.
The flanges and webs of the reinforcing steel section can also give some confining effect on the core concrete.
This design is based on adjusting the cross-section's geometry of the reinforced recycled aggregate concrete beam in a way that it is capable of withstanding the same durability-related service life, similar load bearing capacity and within the same limits for deflection according to the serviceability limit state as per EC2.
The superstructure of the bridge consists of a composite section including the reinforced concrete bridge deck supported by ten high performance steel girders.
