Shear Strength of Steel Fiber-Reinforced Concrete Beams and One-Way Slabs

被引：1

作者：

Alcocer, Sergio M. ^{[1
,2
]}

Almasabha, Ghassan ^{[3
]}

Carrillo, Julian ^{[4
]}

Chao, Shih-Ho ^{[5
]}

Lubell, Adam S. ^{[6
,7
]}

机构：

[1] Natl Autonomous Univ Mexico UNAM, Inst Engn, Mexico City, Mexico

[2] Univ Texas San Antonio, Klesse Coll Engn & Integrated Design, San Antonio, TX 78249 USA

[3] Hashemite Univ, Fac Engn, Dept Civil Engn, Zarqa, Jordan

[4] Univ Mil Nueva Granada, Dept Civil Engn, Bogota, Colombia

[5] Univ Texas Arlington, Arlington, TX USA

[6] Read Jones Christoffersen Ltd, Vancouver, BC, Canada

[7] Univ British Columbia, Vancouver, BC, Canada

来源：

ACI MATERIALS JOURNAL | 2025年 / 122卷 / 01期

关键词：

beams; fiber-volume fraction; lightweight concrete (LWC); minimum shear reinforcement; normalweight concrete (NWC); one-way slabs; shear; size effect; steel fibers;

D O I：

10.14359/51742138

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

Recent research data was evaluated with the aim of extending the applicability of using deformed steel fiber-reinforced concrete (SFRC) to enhance the shear strength of beams and one-way slabs. Experimental results were assessed for influences on the shear strength of SFRC members that do not contain stirrups of factors, including size effect, concrete density (normalweight and lightweight) and compressive strength, fiber-volume fraction (Vf), and the longitudinal steel reinforcement ratio. Estimates of steel stresses in longitudinal bars at the time of shear failure were carried out to identify differences in members with distinct longitudinal steel ratios and bar grades, consistent with the range of flexural design parameters in ACI 318-19. Results of these analyses and a reliability investigation of design equations applicable to members withoutfibers were used forproposing new provisions for the shear design of SFRC beams and one-way slabs based on the ACI318-19 shear-strength model.

引用

页码：103 / 115

页数：40

共 18 条

[1]

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[2]

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[3]

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[4]

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[5]

[Anonymous], 2014, Building code requirements for structural concrete (ACI 318-14)

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[7]

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[8]

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[10]

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