This paper presents a detailed state-of-the-art chronological account of past studies dating
back to the late 1980s consisting of an overview of the vast majority of prediction equations …

In this paper, the research goal was the determination of the flexural response of corroded
pre-stressed reinforced concrete beams (PC). A simplified flexural model is bases on the …

In this article, a nonlinear analysis was carried out to develop two different models able to
estimate the performance of partially prestressed concrete flexural members with unbonded …

This paper describes a numerical model developed to predict the full-range nonlinear
response, as well as time-dependent service-load behaviour, of continuous beams …

Predicting the stress increment (Δ fps) and in turn, the total stress (fps) in internally
unbonded steel tendons at ultimate flexural strength of post-tensioned concrete members is …

The unbonded post-tension (UPT) method has been often applied to continuous flexural
members (eg, slabs and beams), where tendons are typically placed continuously through …

A new simplified and yet rational method is proposed to calculate ultimate tendon stress in
internally unbonded prestressed concrete (PC) members in this paper. Firstly, a beam …

A simple approach is proposed to predict the stress at ultimate and the corresponding
incremental stress in unbonded tendons of simply supported post-tensioned beams. To …

This study involves the analysis of the stress increase beyond effective prestress in beams
prestressed with unbonded internal or external tendons at their ultimate limit state, Δf ps, and …

Tendon filler materials serve as a critical layer, protecting a post-tensioned bridge's steel
reinforcement against corrosion and subsequent strength loss. Recent adoption of flexible …