Shear performance of H-shaped steel to novel inorganic-bonded bamboo composite connections: Experimental tests and prediction models

IF 5.6 1区工程技术 Q1 ENGINEERING, CIVIL

Engineering Structures Pub Date : 2025-03-01 DOI:10.1016/j.engstruct.2025.119975

Ernian Zhao , Qi Song , Xin Zhang , Shuming Li

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引用次数: 0

Abstract

Hybrid structures comprising steel and engineered wood or bamboo have attracted considerable attention from researchers and engineers worldwide. In this study, a novel inorganic-bonded bamboo (InorgBam) material was introduced, and the shear performance of steel-to-InorgBam composite (SBC) connections was investigated using double symmetric specimens. Bolt and welded grout stud shear connectors were considered. The impact of the slenderness ratio of shear connectors on the load-carrying capacity and shear stiffness of SBCs was discussed. The equations in EC 5 were used to evaluate the load-carrying capacity of the bolted connections. The rope effect in EC 5 was improved by considering the degree of plastic deformation of the bolts; in addition, an improved analytical model was proposed to evaluate the shear performance of the bolted connections. For SBC connections with welded stud connectors, load-carrying mechanisms were first discussed, which proved that the failure mode of welded stud connectors is like that of welded studs in steel-concrete composite structures. Consequently, equations to evaluate the shear capacity of steel-concrete composite structures have been adopted for SBC connections with welded stud connectors. The results indicate that the equations in AISC 360–16 are applicable to SBC connections with stud connectors embedded in grout pockets. These findings are beneficial for promoting the application of novel bamboo-based composites in SBC beams and floor systems.

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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.