Title:
Torsion Design Example: Inverted Tee Bent Cap
Author(s):
Camilo Granda Valencia and Eva Lantsoght
Publication:
Symposium Paper
Volume:
344
Issue:
Appears on pages(s):
168-182
Keywords:
bridge, codes, concrete, design, inverted tee bent cap, reinforcement, shear, torsion
DOI:
10.14359/51728296
Date:
10/1/2020
Abstract:
This paper provides a practical example of the torsion design of an inverted tee bent cap of a three-span bridge. A full torsional design following the guidelines of the ACI 318-19 building code is carried out and the results are compared with the outcomes from CSA-A23.3-04, AASHTO-LRFD-17, and EN 1992-1-1:2004 codes.
Then, a summary of the detailing of the cross-section considering the reinforcement requirements is presented. The objective of this paper is to illustrate the application of ACI 318-19 when designing a structural element subjected to large torsional moments.
Related References:
1. ACI Committee 318. 2019. Building Code Requirements for Structural Concrete (ACI 318-19) and Commentary, Farmington Hills, MI
2. American Association of Highway and Transportation Officials. 2017. AASHTO LRFD Bridge Design Specifications, 8th Edition, Washington, D.C.
3. Canada Standards Association. 2004. CSA-A23.3-04 Design of concrete structures, Ontario, Canada
4. European Committee for Standardization. 2004. Eurocode 2: Design of concrete structures - Part 1-1: General rules and rules for buildings, Brussels, Belgium
5. Texas Department of Transportation. 2010. LRFD Inverted Tee Bent Cap Design Example, 1-88
6. Computers & Structures, Inc. 2016. Introduction to CSiBridge
7. Wight, J. 2016. Reinforced concrete: mechanics and design 7ed., Pearson Education, Inc., New Jersey, NJ
8. Mattock, H, A., and Shen, F, J. 1992. Joints Between Reinforced Concrete Members of Similar Depth, ACI Structural Journal, Proceedings, 89(3), 290-295di