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Flexural Strength, Ductility, and Se...
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Portland State University.
Flexural Strength, Ductility, and Serviceability of Beams that Contain High-strength Steel Reinforcement and High-grade Concrete.
紀錄類型:
書目-電子資源 : Monograph/item
正題名/作者:
Flexural Strength, Ductility, and Serviceability of Beams that Contain High-strength Steel Reinforcement and High-grade Concrete.
作者:
Yosefani, Anas.
出版者:
Ann Arbor : ProQuest Dissertations & Theses, 2018
面頁冊數:
210 p.
附註:
Source: Dissertation Abstracts International, Volume: 79-12(E), Section: B.
附註:
Adviser: Franz Rad.
Contained By:
Dissertation Abstracts International79-12B(E).
標題:
Civil engineering.
電子資源:
http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=10825341
ISBN:
9780438156258
Flexural Strength, Ductility, and Serviceability of Beams that Contain High-strength Steel Reinforcement and High-grade Concrete.
Yosefani, Anas.
Flexural Strength, Ductility, and Serviceability of Beams that Contain High-strength Steel Reinforcement and High-grade Concrete.
- Ann Arbor : ProQuest Dissertations & Theses, 2018 - 210 p.
Source: Dissertation Abstracts International, Volume: 79-12(E), Section: B.
Thesis (Ph.D.)--Portland State University, 2018.
Utilizing the higher capacity steel in design can provide additional advantages to the concrete construction industry including a reduction of congestion, improved concrete placement, reduction in the required reinforcement and cross sections which would lead to savings in materials, shipping, and placement costs. Using high-strength reinforcement is expected to impact the design provisions of ACI 318 code and other related codes.
ISBN: 9780438156258Subjects--Topical Terms:
195981
Civil engineering.
Flexural Strength, Ductility, and Serviceability of Beams that Contain High-strength Steel Reinforcement and High-grade Concrete.
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Flexural Strength, Ductility, and Serviceability of Beams that Contain High-strength Steel Reinforcement and High-grade Concrete.
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Utilizing the higher capacity steel in design can provide additional advantages to the concrete construction industry including a reduction of congestion, improved concrete placement, reduction in the required reinforcement and cross sections which would lead to savings in materials, shipping, and placement costs. Using high-strength reinforcement is expected to impact the design provisions of ACI 318 code and other related codes.
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The Applied Technology Council (ATC-115) report "Roadmap for the Use of High-Strength Reinforcement in Reinforced Concrete Design" has identified key design issues that are affected by the use of high-strength reinforcement. Also, ACI ITG-6, "Design Guide for the Use of ASTM A1035 Grade 100 Steel Bars for Structural Concrete" and NCHRP Report 679, "Design of Concrete Structures Using High-Strength Steel Reinforcement" have made progress towards identifying how code provisions in ACI 318 and AASHTO could be changed to incorporate high-strength reinforcement.
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The current research aims to provide a closer investigation of the behavior of beams reinforced with high-strength steel bars (including ASTM A615 Grade 100 and ASTM A1035 Grades 100 and 120) and high-strength concrete up to 12000 psi. Focus of the research is on key design issues including: ductility, stiffness, deflection, and cracking.
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The research includes an extensive review of current literature, an analytical study and conforming experimental tests, and is directed to provide a number of recommendations and design guidelines for design of beams reinforced with high-strength concrete and high-strength steel. Topics investigated include: strain limits (tension-controlled and compression-controlled, and minimum strain in steel); possible change for strength reduction factor equation for transition zone (&phis;); evaluation of the minimum reinforcement ratio (rho min); recommendations regarding limiting the maximum stress for the high-strength reinforcement; and prediction of deflection and crack width at service load levels. Moreover, this research includes long-term deflection test of a beam made with high grade concrete and high-strength steel under sustained load for twelve months to evaluate the creep deflection and to insure the appropriateness of the current ACI 318 time-dependent factor, lambda, which does not consider the yield strength of reinforcement and the concrete grade.
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