<?xml version="1.1" encoding="utf-8"?>
<article xsi:noNamespaceSchemaLocation="http://jats.nlm.nih.gov/publishing/1.1/xsd/JATS-journalpublishing1-mathml3.xsd" dtd-version="1.1" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"><front><journal-meta><journal-id journal-id-type="publisher-id">SSSD</journal-id><journal-title-group><journal-title>Scientific and Social Sustainable Development</journal-title></journal-title-group><issn>3066-8964</issn><eissn>3066-8980</eissn><publisher><publisher-name>Art and Technology</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.61369/SSSD.2026050034</article-id><article-categories><subj-group subj-group-type="heading"><subject>Article</subject></subj-group></article-categories><title>再生骨料混凝土梁的有限元分析</title><url>https://artdesignp.com/journal/SSSD/2/5/10.61369/SSSD.2026050034</url><author>张守卫,陈士琳,熊玮,陈同同,张明鑫</author><pub-date pub-type="publication-year"><year>2026</year></pub-date><volume>2</volume><issue>5</issue><history><date date-type="pub"><published-time>2026-03-14</published-time></date></history><abstract>为了解不同再生骨料取代率下，再生混凝土梁的各种性能，建立其有限元模型。模型各项参数由实际实验和公式计算所得，后对再生混凝土梁的支座反力，塑性应力进行分析，得到极限荷载、开裂荷载和荷载- 位移曲线。其分析结果表明：随着再生骨料的而加入，梁的极限荷载降低，位移减少，抗拉能力下降，梁更容易发生脆性破坏。当取代率从40% 到50% 时，梁的极限荷载下降幅度增大。相比较而言，掺量为30% 时与普通混凝土梁差距不大，所以再生骨料取代率为30% 的混凝土梁性价比最高。</abstract><keywords>再生骨料,荷载- 位移曲线,取代率,有限元分析</keywords></article-meta></front><body/><back><ref-list><ref id="B1" content-type="article"><label>1</label><element-citation publication-type="journal"><p>[1] Bairagi N K，Kishore R．Behavior of concrete with different proportions o f n a t u r a l a n d r e c y c l e d a g g r e g a t es，Res o u r c e［J］．Con s e r v a t i o n a n d Recycling,1993,9（3）：109．[2] i̇lker Bekir Top&amp;ccedil;u and Nedim Firat G&amp;uuml;n&amp;ccedil;an. Using waste concrete as aggregate[J]. Cement and Concrete Research, 1995, 25(7) : 1385-1390.[3] Sumaiya B. Huda and M. Shahria Alam. Mechanical and Freeze-Thaw Durability Properties of Recycled Aggregate Concrete Made with Recycled Coarse Aggregate[J]. Journal of Materials in Civil Engineering, 2015, 27(10) : 04015003-04015003.[4] Ji-Liang Peng et al. Stress&amp;ndash;Strain Relationship Model of Recycled Concrete Based on Strength and Replacement Rate of Recycled Coarse Aggregate[J]. Journal of Materials in Civil Engineering, 2019, 31(9) : 04019189-04019189.[5] Marian Sabău and Jes&amp;uacute;s Remolina Duran. Prediction of Compressive Strength of General-Use Concrete Mixes with Recycled Concrete Aggregate[J]. International Journal of Pavement Research and Technology, 2021, : 1-13.[6] Du, T., Wang, W., Liu, Z. et al. The complete stress-strain curve of recycled aggregate concrete under uniaxial compression loading. J. Wuhan Univ. Technol.- Mat. Sci. Edit. 25, 862&amp;ndash;865 (2010). https://doi.org/10.1007/s11595-010-0109-9[7] Haraji M H .Developmen t/ splice strength of reinf orcing bars embedded in pail and fiber reinforced concret e[ J] .ACI Structu ral Journal, 1994, 91( 5) :511.</p><pub-id pub-id-type="doi"/></element-citation></ref></ref-list></back></article>
