Compression-bending behavior of corrugated steel-sprayed ECC composite arches

IF 6.4 1区工程技术 Q1 ENGINEERING, CIVIL

Engineering Structures Pub Date : 2025-09-29 DOI:10.1016/j.engstruct.2025.121438

Zhanming Wu , Faqi Liu , Yuyin Wang , Ou Zhao , Changyong Liu

{"title":"Compression-bending behavior of corrugated steel-sprayed ECC composite arches","authors":"Zhanming Wu , Faqi Liu , Yuyin Wang , Ou Zhao , Changyong Liu","doi":"10.1016/j.engstruct.2025.121438","DOIUrl":null,"url":null,"abstract":"<div><div>The corrugated steel-sprayed ECC composite (CSSECCC) arch functions as an innovative structural form, offering excellent ductility and high construction efficiency. Four 6 m-span specimens were tested under different loading conditions and ECC fiber types to study their compression–bending behavior, focusing on failure modes, load–displacement curves, composite effect, and other key mechanical behaviors. Under three-point, mid-span, and <em>L</em>/4 span position loading, the failure locations of CSSECCC arches were observed at 7 <em>L</em>/8, <em>L</em>/2, and <em>L</em>/4 positions, respectively, with cracking occurring in the ECC layer. The CSSECCC arch with smaller eccentricity and cross-sectional bending moment exhibited higher ultimate bearing capacity compared to those with larger eccentricity and bending moment. The CSSECCC arch with PE fibers exhibited a 12.9 % higher ultimate bearing capacity than the one with PP fibers. Furthermore, an extensive parametric analysis was conducted based on the developed refined finite element model. The results indicate that increasing the ECC thickness and strength, as well as the corrugation size of the CS, can significantly enhance the compression-bending bearing capacity of CSSECCC arches. Finally, a method for predicting the compression-bending bearing capacity of CSSECCC arches was introduced.</div></div>","PeriodicalId":11763,"journal":{"name":"Engineering Structures","volume":"345 ","pages":"Article 121438"},"PeriodicalIF":6.4000,"publicationDate":"2025-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Engineering Structures","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0141029625018292","RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ENGINEERING, CIVIL","Score":null,"Total":0}

引用次数: 0

Abstract

The corrugated steel-sprayed ECC composite (CSSECCC) arch functions as an innovative structural form, offering excellent ductility and high construction efficiency. Four 6 m-span specimens were tested under different loading conditions and ECC fiber types to study their compression–bending behavior, focusing on failure modes, load–displacement curves, composite effect, and other key mechanical behaviors. Under three-point, mid-span, and L/4 span position loading, the failure locations of CSSECCC arches were observed at 7 L/8, L/2, and L/4 positions, respectively, with cracking occurring in the ECC layer. The CSSECCC arch with smaller eccentricity and cross-sectional bending moment exhibited higher ultimate bearing capacity compared to those with larger eccentricity and bending moment. The CSSECCC arch with PE fibers exhibited a 12.9 % higher ultimate bearing capacity than the one with PP fibers. Furthermore, an extensive parametric analysis was conducted based on the developed refined finite element model. The results indicate that increasing the ECC thickness and strength, as well as the corrugation size of the CS, can significantly enhance the compression-bending bearing capacity of CSSECCC arches. Finally, a method for predicting the compression-bending bearing capacity of CSSECCC arches was introduced.

查看原文本刊更多论文

波纹钢喷涂ECC复合拱的压弯性能

波纹钢喷涂ECC复合（CSSECCC）拱作为一种创新的结构形式，具有优异的延展性和高施工效率。对4个6 m跨试件在不同加载条件和不同ECC纤维类型下的压弯性能进行了试验研究，重点研究了试件的破坏模式、荷载-位移曲线、复合效应等关键力学行为。在三点、跨中和L/4跨位置荷载作用下，CSSECCC拱的破坏位置分别在7 L/8、L/2和L/4位置，开裂发生在ECC层。偏心距和截面弯矩较小的CSSECCC拱比偏心距和截面弯矩较大的CSSECCC拱具有更高的极限承载力。PE纤维的CSSECCC拱比PP纤维的CSSECCC拱的极限承载力提高了12.9 %。此外，基于所建立的精细化有限元模型进行了广泛的参数分析。结果表明：增加ECC的厚度和强度，增加CS的波纹尺寸，可以显著提高CSSECCC拱的抗压弯曲承载力。最后，介绍了一种预测CSSECCC拱抗压弯曲承载力的方法。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Engineering Structures 工程技术-工程：土木

CiteScore

10.20

自引率

14.50%

发文量

1385

审稿时长

67 days

期刊介绍： Engineering Structures provides a forum for a broad blend of scientific and technical papers to reflect the evolving needs of the structural engineering and structural mechanics communities. Particularly welcome are contributions dealing with applications of structural engineering and mechanics principles in all areas of technology. The journal aspires to a broad and integrated coverage of the effects of dynamic loadings and of the modelling techniques whereby the structural response to these loadings may be computed. The scope of Engineering Structures encompasses, but is not restricted to, the following areas: infrastructure engineering; earthquake engineering; structure-fluid-soil interaction; wind engineering; fire engineering; blast engineering; structural reliability/stability; life assessment/integrity; structural health monitoring; multi-hazard engineering; structural dynamics; optimization; expert systems; experimental modelling; performance-based design; multiscale analysis; value engineering. Topics of interest include: tall buildings; innovative structures; environmentally responsive structures; bridges; stadiums; commercial and public buildings; transmission towers; television and telecommunication masts; foldable structures; cooling towers; plates and shells; suspension structures; protective structures; smart structures; nuclear reactors; dams; pressure vessels; pipelines; tunnels. Engineering Structures also publishes review articles, short communications and discussions, book reviews, and a diary on international events related to any aspect of structural engineering.