Design of Prestressed Concrete Flexural Members
Properties of Pre- and Post-Tensioned Hybrid Epoxy–Cement Concrete Members for Construction Applications, wiley, ss.111-119, 2026
- Yayın Türü: Kitapta Bölüm / Araştırma Kitabı
- Basım Tarihi: 2026
- Doi Numarası: 10.1002/9781394219384.ch7
- Yayınevi: wiley
- Sayfa Sayıları: ss.111-119
- Anahtar Kelimeler: bonded and unbonded tendons, composite tendons (CFRP, BFRP), crack control, performance-based design, prestress losses, prestressed concrete flexural members, seismic resilience, serviceability, stress balancing, tendon profiling, ultimate flexural strength
- İstanbul Üniversitesi-Cerrahpaşa Adresli: Evet
Özet
The design of prestressed concrete flexural members represents a cornerstone of modern structural engineering, enabling longer spans, slender profiles, and enhanced durability compared to conventional reinforced systems. This chapter examines the principles and methodologies that govern flexural design, emphasizing stress balancing, tendon profiling, and accurate estimation of prestress losses. Serviceability considerations—such as crack control, deflection limits, and long-term performance—are addressed alongside ultimate strength evaluation, where equilibrium, strain compatibility, and material behavior define capacity. The discussion highlights the distinct mechanics of bonded and unbonded tendons, integrating recent refinements such as strain-reduction-coefficient methods for unbonded systems. Advances in materials, including CFRP and BFRP tendons, are explored for their unique stress–strain characteristics and anchorage behavior, requiring updated design models. The chapter also underscores performance-based approaches, particularly for seismic applications, where hybrid prestressed systems demonstrate self-centering and resilience under cyclic loading. By synthesizing classical theory, code provisions, and contemporary research, the chapter establishes a comprehensive framework for designing prestressed flexural members that achieve both strength and ductility, ensuring safety, efficiency, and adaptability in complex infrastructure.