A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Strut-And-Tie Models
The chapter deals with Strut-and-Tie (S&T) models for the design of those RC structural elements which are not classifiable as Saint–Venant beams, like rigid spread footings, deep beams, corbels, or those regions of slender beams subjected to nonlinear strain distribution (e.g., at concentrated loads or reactions, at abrupt cross-sectional changes). The mechanical model assumed in S&T models is built by identifying a triangulated truss made of struts and ties, corresponding to compressive and tensile stress fields, respectively. The idea of using S&T models has been first introduced at the end of the nineteenth century and the beginning of the twentieth century by Ritter and Mörsch for the shear design of reinforced concrete beams. Later the use of S&T models has been extended to the design of all reinforced concrete structures by Jörg Schlaich at the University of Stuttgart. According to EC2, S&T models can be used for ULS design of both “continuity” and “discontinuity” regions. Continuity or B-regions are those where the Euler–Bernoulli hypothesis is satisfied (“plane sections remain plane”), while discontinuity or D-regions are characterized by static or geometric discontinuities. S&T models can also be used for the verification of the serviceability limit states (SLS). The chapter includes many case studies about the identification of the S&T geometry and the design of the reinforcement layout for common RC structural members.
Strut-And-Tie Models
The chapter deals with Strut-and-Tie (S&T) models for the design of those RC structural elements which are not classifiable as Saint–Venant beams, like rigid spread footings, deep beams, corbels, or those regions of slender beams subjected to nonlinear strain distribution (e.g., at concentrated loads or reactions, at abrupt cross-sectional changes). The mechanical model assumed in S&T models is built by identifying a triangulated truss made of struts and ties, corresponding to compressive and tensile stress fields, respectively. The idea of using S&T models has been first introduced at the end of the nineteenth century and the beginning of the twentieth century by Ritter and Mörsch for the shear design of reinforced concrete beams. Later the use of S&T models has been extended to the design of all reinforced concrete structures by Jörg Schlaich at the University of Stuttgart. According to EC2, S&T models can be used for ULS design of both “continuity” and “discontinuity” regions. Continuity or B-regions are those where the Euler–Bernoulli hypothesis is satisfied (“plane sections remain plane”), while discontinuity or D-regions are characterized by static or geometric discontinuities. S&T models can also be used for the verification of the serviceability limit states (SLS). The chapter includes many case studies about the identification of the S&T geometry and the design of the reinforcement layout for common RC structural members.
Strut-And-Tie Models
Angotti, Franco (author) / Guiglia, Matteo (author) / Marro, Piero (author) / Orlando, Maurizio (author)
Reinforced Concrete with Worked Examples ; Chapter: 10 ; 587-691
2022-06-05
105 pages
Article/Chapter (Book)
Electronic Resource
English
| Wiley | 2022
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