Shear Strength of Reinforced Concrete Beams Using Recycled Coarse Aggregates without Stirrups

被引：0

作者：

Kim, Woosuk ^{[1
,2
]}

Kang, Thomas H-K ^{[3
]}

Lee, Deuckhang ^{[4
,5
,6
]}

Choi, Hajin ^{[7
]}

Kwak, Yoon-Keun ^{[8
]}

机构：

[1] Kumoh Natl Inst Technol, Dept Architectural Engn, Gumi, South Korea

[2] Seoul Natl Univ, Seoul, South Korea

[3] Seoul Natl Univ, Struct Engn, Seoul, South Korea

[4] Chungbuk Natl Univ, Dept Architectural Engn, Cheongju, South Korea

[5] Nazarbayev Univ, Astana, Kazakhstan

[6] Univ Illinois, Urbana, IL USA

[7] Soongsil Univ, Seoul, South Korea

[8] Kumoh Natl Inst Technol, Gumi, South Korea

来源：

ACI STRUCTURAL JOURNAL | 2020年 / 117卷 / 06期

基金：

新加坡国家研究基金会;

关键词：

construction waste; design; failure mode; recycled coarse aggregate; shear; strength; POTENTIAL CAPACITY MODEL; PERFORMANCE;

D O I：

10.14359/51728079

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

Given current environmental concerns, attention has been directed toward the use of recycled coarse aggregates (RCAs) as a substitute for natural raw materials commonly consumed in construction. In regard to shear performance, limited studies currently exist. To this end, a total of 56 reinforced concrete beams without stirrups were tested to identify the effect of using RCA on shear strength. Failure governed primarily by shear span-depth ratios and partially by tension reinforcement ratios can significantly affect shear behavior of RCA concrete members. Test results obtained for this study were evaluated using current ACI 318 shear design equations. Overall, crack patterns and failure modes for the RCA concrete test specimens were similar to those of natural coarse aggregates (NCAs). On this basis, it was established that RCA concrete beams can be used in practice with confidence in satisfactory shear performance.

引用

页码：281 / 295

页数：15

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