Journal of Constructional Steel Research最新文献

Experimental investigation and parameter analysis of boltless steel pallet rack beam-to-column connection

IF 4 2区工程技术

Journal of Constructional Steel Research Pub Date : 2025-04-16 DOI: 10.1016/j.jcsr.2025.109578

Nur Azfar Mohamad Rosli , Chee Ghuan Tan , Huzaifa Hashim , N.H. Ramli Sulong

{"title":"Experimental investigation and parameter analysis of boltless steel pallet rack beam-to-column connection","authors":"Nur Azfar Mohamad Rosli , Chee Ghuan Tan , Huzaifa Hashim , N.H. Ramli Sulong","doi":"10.1016/j.jcsr.2025.109578","DOIUrl":"10.1016/j.jcsr.2025.109578","url":null,"abstract":"<div><div>The demand for Steel Pallet Racks (SPR) in the storage and warehousing sectors is escalating. The beam-to-column (BTC) connections are the critical parts of this system. The failure of these parts could lead to the entire collapse of this system. The vulnerability to failure is particularly significant in un-braced, down-aisle BTC connections, which experience higher moment rotation and stress concentration, leading to premature failure. This study addresses these challenges by carrying out an in-depth experimental investigation focusing on the complex behaviour and variety in SPR components and configurations. A total of 42 specimens were experimentally tested under monotonic loading following EN15512 and EN 1993-1-8 testing guidelines. The research delves into failure modes, moment-rotation responses, and the influence of geometric parameters on the bending strength and rotational stiffness of SPR connections. Key findings reveal that SPR BTC connections exhibit partial strength and semi-rigid stiffness. Notably, beams with a height of 150 mm showed a remarkable 113 % increase in stability and a 73 % reduction in deflection. Furthermore, an increase in beam height by 65 mm resulted in a 20 % enhancement in performance. By optimizing component and geometrical configurations, this study offers critical insights into improving the design, safety, and structural integrity of SPR systems, addressing key vulnerabilities in un-braced down-aisle configurations.</div></div>","PeriodicalId":15557,"journal":{"name":"Journal of Constructional Steel Research","volume":"231 ","pages":"Article 109578"},"PeriodicalIF":4.0,"publicationDate":"2025-04-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143833965","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Bond behavior of CFRP-to-steel interfaces with a typical ductile adhesive at low temperatures

IF 4 2区工程技术

Journal of Constructional Steel Research Pub Date : 2025-04-15 DOI: 10.1016/j.jcsr.2025.109577

Guo Dong, Mao Wei-An, Deng Jun, Zhong Min-Ting, Li Xiao-Da

{"title":"Bond behavior of CFRP-to-steel interfaces with a typical ductile adhesive at low temperatures","authors":"Guo Dong, Mao Wei-An, Deng Jun, Zhong Min-Ting, Li Xiao-Da","doi":"10.1016/j.jcsr.2025.109577","DOIUrl":"10.1016/j.jcsr.2025.109577","url":null,"abstract":"<div><div>Externally bonded (EB) carbon fiber-reinforced polymer (CFRP) composites are increasingly used to strengthen aging steel structures. In strengthened structures, the bond interface between CFRP and steel serves as the primary stress transfer pathway but may deteriorate under extreme temperatures. This study investigates the bond behavior between CFRP and steel over a temperature range of −40 °C to 25 °C. Single-lap CFRP-to-steel bonded joints were tested using a newly designed holding device that induced pure mode-II stress at the bonding interface. Load-displacement relationships and CFRP strain distributions were recorded, facilitating the determination of interfacial stress distributions and bond-slip relationships. The results showed that bond-slip characteristics transitioned from a tri-linear (elastic-plastic-softening) to a bi-linear (elastic-softening) configuration as the temperature decreased, accompanied by a continuous increase in interfacial shear stiffness and a reduction in interfacial fracture energy. In addition, the derived bond-slip relationships were used in finite element modeling and validated by their close alignment with experimental data. Finally, the individual effects of thermal stress or bond property variations on the bond strength were analyzed separately utilizing an analytical solution.</div></div>","PeriodicalId":15557,"journal":{"name":"Journal of Constructional Steel Research","volume":"231 ","pages":"Article 109577"},"PeriodicalIF":4.0,"publicationDate":"2025-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143833847","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Axial compressive behavior of tapered CFDST column with large hollow ratio

IF 4 2区工程技术

Journal of Constructional Steel Research Pub Date : 2025-04-14 DOI: 10.1016/j.jcsr.2025.109558

Xiang-Hong Liu , Sital Kumar Dangi , Yu-Hao Pan , Zai-Yu Zhang , Qing Sun , Jian-Tao Wang

{"title":"Axial compressive behavior of tapered CFDST column with large hollow ratio","authors":"Xiang-Hong Liu , Sital Kumar Dangi , Yu-Hao Pan , Zai-Yu Zhang , Qing Sun , Jian-Tao Wang","doi":"10.1016/j.jcsr.2025.109558","DOIUrl":"10.1016/j.jcsr.2025.109558","url":null,"abstract":"<div><div>This study investigates the axial compression performance of tapered large hollow ratio concrete-filled double-skin steel tubular column (TLH-CFDST) with high strength steel through test and finite element analysis. Seven specimens were subjected to axial compression tests to reveal the failure modes that occurred at the top section of the columns. Based on the test results, a validated finite element model (FEM) and parametric analysis were developed to analyze the influence of key parameters on compressive performance. A full-process prediction theory for axial compression, based on continuum mechanics equations with a recommended intermediate principal stress coefficient of b = 0.3 under the unified strength theory (UST), was proposed. It demonstrated high accuracy compared with Tresca and Von-Mises criteria, with mean values (MV) of 0.996 for capacity and 0.963 for stiffness, and coefficients of variation (CV) of 0.023 and 0.056, respectively. Based on the elasto-plastic solution of a thick-walled cylinder under plane strain conditions, a theoretical formula for predicting axial compression capacity was derived with a coefficient of determination (R<sup>2</sup>) of 0.987 and coefficients of variation (CV) of 0.091. The results provide a reliable theoretical and practical basis for the design and application of high-strength TLH-CFDST structures in engineering practice.</div></div>","PeriodicalId":15557,"journal":{"name":"Journal of Constructional Steel Research","volume":"230 ","pages":"Article 109558"},"PeriodicalIF":4.0,"publicationDate":"2025-04-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143825659","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Experimental and theoretical investigation of the high-cycle fatigue failure mechanism of M24 high-strength bolts

IF 4 2区工程技术

Journal of Constructional Steel Research Pub Date : 2025-04-13 DOI: 10.1016/j.jcsr.2025.109560

Jinfeng Jiao , Huijun Du , Jie Deng , Pengcheng Chen , Guoyun Lu

{"title":"Experimental and theoretical investigation of the high-cycle fatigue failure mechanism of M24 high-strength bolts","authors":"Jinfeng Jiao , Huijun Du , Jie Deng , Pengcheng Chen , Guoyun Lu","doi":"10.1016/j.jcsr.2025.109560","DOIUrl":"10.1016/j.jcsr.2025.109560","url":null,"abstract":"<div><div>This study delves into the fatigue failure mechanisms and pivotal fatigue performance parameters of grade 10.9 M24 high-strength bolts, critical components in steel structures. We executed 15 constant-amplitude axial tension high-cycle fatigue tests at a stress ratio of 0.8, complemented by five fatigue crack growth rate tests and three fracture toughness assessments, all utilizing material identical to that of the bolts. The investigation encompassed an analysis of fatigue fracture surface characteristics of representative bolt specimens and a numerical simulation of the bolts' fatigue crack growth life. The study's findings reveal that the <em>S-N</em> curve and constant-amplitude fatigue formula for M24 high-strength bolts have been successfully calibrated. The fatigue performance key parameters—crack growth rate <em>C</em> = 1.26 × 10<sup>−12</sup>, exponent <em>m</em> = 3.35, and fracture toughness <em>K</em><sub>IC</sub> = 106.67 MPa·m<sup>1/2</sup>—were precisely determined. The initial crack morphology characteristics (<em>a/c</em>) and the stress ratio during loading were found to significantly influence the fatigue crack growth life, whereas the stress amplitude's effect on the proportion of the crack growth life within the total life was irregular. Theoretical calculations and numerical simulations, grounded on the fatigue performance parameters, indicate that the crack growth life constitutes an average of 10.13 % to 25.82 % of the total life span, with the initiation phase substantially outweighing the propagation phase, contributing to over 70 % of the overall life.</div></div>","PeriodicalId":15557,"journal":{"name":"Journal of Constructional Steel Research","volume":"230 ","pages":"Article 109560"},"PeriodicalIF":4.0,"publicationDate":"2025-04-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143824091","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Numerical analysis on structural behavior of headed stud-steel block connectors (HSBCs)-UHPC grouting

IF 4 2区工程技术

Journal of Constructional Steel Research Pub Date : 2025-04-12 DOI: 10.1016/j.jcsr.2025.109557

Liyu Feng , Kwok-Fai Chung , Xuanding Wang , Jiepeng Liu , Xuhong Zhou

{"title":"Numerical analysis on structural behavior of headed stud-steel block connectors (HSBCs)-UHPC grouting","authors":"Liyu Feng , Kwok-Fai Chung , Xuanding Wang , Jiepeng Liu , Xuhong Zhou","doi":"10.1016/j.jcsr.2025.109557","DOIUrl":"10.1016/j.jcsr.2025.109557","url":null,"abstract":"<div><div>To investigate the structural behavior of the headed stud-steel block connectors (HSBCs)-UHPC grouting in prefabricated steel-concrete composite beams, a refined finite element (FE) model is established to simulate the push-out test of HSBC. This FE model can effectively simulate the push-out test, including the shear force-slip curve and failure mode. Typical failure characteristics of two failure modes (shear failure and concrete compression failure) are discussed in detail on the verified FE model. Then, the effects of the change in the steel block height (steel block height-to-slab thickness ratio), concrete strength, stud diameter, shear pocket spacing, concrete slab width, and steel block length are elucidated through parametric studies. Based on the typical failure characteristics of failure modes and the parameter analysis results, theoretical analysis models for the two failure modes are established, and the corresponding calculation formulas are proposed. The influence of each parameter is evaluated by fitting with the FE analysis results. These theoretical formulas can effectively predict the shear capacity and the failure mode of HSBC by comparing them with the FE analysis results, with good agreement. Additionally, a three-stage linear shear force-slip curve is proposed, and the predicted results are basically close to the experimental results.</div></div>","PeriodicalId":15557,"journal":{"name":"Journal of Constructional Steel Research","volume":"230 ","pages":"Article 109557"},"PeriodicalIF":4.0,"publicationDate":"2025-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143824092","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Compressive behavior of square steel tube confined lightweight concrete with bamboo scrimber

IF 4 2区工程技术

Journal of Constructional Steel Research Pub Date : 2025-04-11 DOI: 10.1016/j.jcsr.2025.109562

Wei Chen , Zheng Tian , Bing Ma , Xutao Shi , Yusheng Zeng , You Mo , Zuyin Zou

{"title":"Compressive behavior of square steel tube confined lightweight concrete with bamboo scrimber","authors":"Wei Chen , Zheng Tian , Bing Ma , Xutao Shi , Yusheng Zeng , You Mo , Zuyin Zou","doi":"10.1016/j.jcsr.2025.109562","DOIUrl":"10.1016/j.jcsr.2025.109562","url":null,"abstract":"<div><div>Bamboo scrimber, with its lightweight and high-strength properties, has emerged as one of the most promising green building materials. This study integrates bamboo scrimber into Steel Tube Confined Lightweight Aggregate Concrete (STCLAC) to form Square Steel Tube Confined Lightweight Aggregate Concrete Columns with Bamboo Scrimber (BSTCLAC), reducing structural deadweight and concrete usage. To comprehensively investigate the factors influencing the axial compression performance of these columns, key parameters were selected, including bamboo scrimber cross-section size, concrete strength, steel tube thickness, and the steel tube confinement type. A total of 15 specimens were fabricated and subjected to axial static load tests. The damage modes, displacement-load curves, load-strain curves, bearing capacity, and ductility were systematically analyzed. The test results revealed that under axial compression, the specimens primarily failed due to crushing at the structural joints of the steel tube. Bearing capacity increased initially but decreased as the cross-section size of the bamboo scrimber increased, with a maximum increase of 19.99 %. The increase in concrete strength led to a significant enhancement in bearing capacity, with a maximum increase of 37.01 %. Additionally, all BSTCLACs exhibited excellent ductility, with a maximum residual load capacity retention of 97.97 %. The inclusion of bamboo scrimber significantly boosted energy absorption and load-bearing performance under large deformations. Based on experimental data and unified strength theory, an axial compressive load capacity calculation model was proposed, demonstrating high accuracy with results closely matching experimental observations.</div></div>","PeriodicalId":15557,"journal":{"name":"Journal of Constructional Steel Research","volume":"230 ","pages":"Article 109562"},"PeriodicalIF":4.0,"publicationDate":"2025-04-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143817244","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Behavior of GRAC-filled square steel tubular stub column under axial compression

IF 4 2区工程技术

Journal of Constructional Steel Research Pub Date : 2025-04-10 DOI: 10.1016/j.jcsr.2025.109551

Biao Li , Cheng Zhen , Feng Wu , Yang Li , Yaodong Liu , Songbo Wang

{"title":"Behavior of GRAC-filled square steel tubular stub column under axial compression","authors":"Biao Li , Cheng Zhen , Feng Wu , Yang Li , Yaodong Liu , Songbo Wang","doi":"10.1016/j.jcsr.2025.109551","DOIUrl":"10.1016/j.jcsr.2025.109551","url":null,"abstract":"<div><div>Geopolymer recycled aggregate concrete-filled steel tube (GRACFST) is a low-carbon and sustainable structural form. This paper conducted an experimental study on the mechanical behavior of square GRACFST stub columns under axial compression through twenty-two specimens' tests. The concrete type, strength grade, RA substitute rate, and steel tube thickness were considered as the main variables. The results indicated that the major failure mode of the columns is bulking failure, yet it can be alleviated by increasing RA substitute rates and steel tube thicknesses. Compared with cement-based RACFST, using geopolymer concrete leads to higher ultimate strength and initial stiffness of GRACFST, but lower ductility. While, the changing rule for the addition of RA is just on the contrary, with showing reduced ultimate load but improved ductility. The maximum reducing amplitude for ultimate load of GRACFST column is 16.34 %. Moreover, the thicker steel tube greatly enhances the ultimate load, stiffness and post-peak ductility, exhibiting prominent confinement effect on the core GRAC, which is insensitive to the concrete strength and RA substitute rate, but binder type. In addition, codes based on unified theory can provide accurate predictions for the ultimate resistance, and a simplified empirical calculation formula was developed based on test results. Furthermore, a theoretical calculation method using the multi-axial strength criteria of GRAC was proposed with showing improved prediction accuracy for the ultimate load-bearing capacity of GRACFST stub columns.</div></div>","PeriodicalId":15557,"journal":{"name":"Journal of Constructional Steel Research","volume":"230 ","pages":"Article 109551"},"PeriodicalIF":4.0,"publicationDate":"2025-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143817157","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Model factor calibration for FEM-based design of slender steel welded plated structures

IF 4 2区工程技术

Journal of Constructional Steel Research Pub Date : 2025-04-10 DOI: 10.1016/j.jcsr.2025.109559

E. Bärnkopf, B. Kövesdi, A. Horváth

{"title":"Model factor calibration for FEM-based design of slender steel welded plated structures","authors":"E. Bärnkopf, B. Kövesdi, A. Horváth","doi":"10.1016/j.jcsr.2025.109559","DOIUrl":"10.1016/j.jcsr.2025.109559","url":null,"abstract":"<div><div>FEM-based design is getting widely used in the daily design practice of steel structures. A new Eurocode standard – prEN 1993-1-14 is under preparation to regulate its application. The direct resistance check, where numerical model determines the resistance of the structure needs improvement in terms of handling the uncertainties and ensuring the required safety. The FEM-based design should take into account all the uncertainties handled in traditional analytical calculations and the uncertainties of the numerical model, thus ensuring an equivalent level of safety as required by the Eurocode standards. Therefore, the value of the partial factor associated with the uncertainty of the calculation model should be reassessed and the uncertainty and reliability of the numerical models should be examined. A methodology to evaluate the uncertainties on the resistance side is developed and summarized in this paper, which proposes partial safety factors (γ<sub>Rd</sub>, γ<sub>m</sub>, γ<sub>M</sub> and γ<sub>FE</sub>) adapted to the failure probability objectives of the EN 1990 standard. The focus of the study is on a specific failure mode - bending resistance of steel box-section beams - using the results of laboratory experiments. The current paper presents the calculation of the model factor (γ<sub>FE</sub>) for this specific failure mode by using a shell-type numerical model and also compares its application to Monte Carlo simulation-based reliability analysis results to prove the appropriate safety.</div></div>","PeriodicalId":15557,"journal":{"name":"Journal of Constructional Steel Research","volume":"230 ","pages":"Article 109559"},"PeriodicalIF":4.0,"publicationDate":"2025-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143817239","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Model test of double-deck steel truss bridge with arched stiffening chord

IF 4 2区工程技术

Journal of Constructional Steel Research Pub Date : 2025-04-10 DOI: 10.1016/j.jcsr.2025.109555

Zhihua Chen , Yibo Han , Bingzhen Zhao , Yang Liu , Hongbo Liu , Pengfei Li , Yang Li , Anduamlak Tamrat Degefe

{"title":"Model test of double-deck steel truss bridge with arched stiffening chord","authors":"Zhihua Chen , Yibo Han , Bingzhen Zhao , Yang Liu , Hongbo Liu , Pengfei Li , Yang Li , Anduamlak Tamrat Degefe","doi":"10.1016/j.jcsr.2025.109555","DOIUrl":"10.1016/j.jcsr.2025.109555","url":null,"abstract":"<div><div>This study investigated the mechanical performance of double-layer steel truss bridges with arched stiffening chords and their impact on the truss structure. Based on the 1412 m Xi'an Metro Line 10 bridge over the Wei River, a 1:30 scale test model of the three central spans (168 + 300 + 168 m) was established using similarity theory. A model test was conducted to investigate the overall mechanical performance of the double-layer steel truss continuous beam as well as the interaction mechanism and failure modes between the beam and the upper arched stiffening chord. The results indicated that under full-span loading, the upper arched stiffening chords increased the stiffness of the midspan by 37.9 %, effectively reducing the midspan displacement. The addition of arched stiffening chords altered the load path and transferred some forces from the truss structure through the montants at mid-span to the stiffening chords, and finally to the montants above the supports. This results in increased stress in the web members above the supports and reduced stress in the upper chords. The initial failure occurred via buckling of the web members above the supports, followed by yielding of the lower chords, ultimately leading to overall structural failure, at which point the arched stiffening chords remained in the elastic stage.</div></div>","PeriodicalId":15557,"journal":{"name":"Journal of Constructional Steel Research","volume":"230 ","pages":"Article 109555"},"PeriodicalIF":4.0,"publicationDate":"2025-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143817158","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Confinement mechanism of angle steel-corrugated steel plate confined concrete columns under compression

IF 4 2区工程技术

Journal of Constructional Steel Research Pub Date : 2025-04-10 DOI: 10.1016/j.jcsr.2025.109547

Rong Su , Xian Li , Ming Chen , Hong Yan , Yi-Chao Wu

{"title":"Confinement mechanism of angle steel-corrugated steel plate confined concrete columns under compression","authors":"Rong Su , Xian Li , Ming Chen , Hong Yan , Yi-Chao Wu","doi":"10.1016/j.jcsr.2025.109547","DOIUrl":"10.1016/j.jcsr.2025.109547","url":null,"abstract":"<div><div>To enhance steel efficiency and reduce energy consumption in construction, a novel angle steel-corrugated steel plate confined concrete (A-CSC) column has been developed. This composite column is constructed by welding outward-facing angle steel at the corners to side corrugated steel plates, with the core filled with concrete. The angle steel primarily carries axial loads, whereas the corrugated steel plates offer confinement to the concrete and bear shear forces. This study investigates the axial compression behavior of these composite columns through experiments and finite element method (FEM) analyses. The findings indicate that the corrugated steel plates effectively confine the concrete without experiencing local buckling before the columns reach their peak load, even when the corrugated steel plate has a large width-to-thickness ratio. Based on the experimental data, load-axial strain curves for each component were derived using an internal force decomposition method. Subsequently, a constitutive model was proposed for the concrete confined by the corrugated steel plates in fiber model. Finally, an equivalent cross-section analysis was conducted to develop a load-bearing capacity calculation formula applicable to components with varying sectional depth-width ratios.</div></div>","PeriodicalId":15557,"journal":{"name":"Journal of Constructional Steel Research","volume":"230 ","pages":"Article 109547"},"PeriodicalIF":4.0,"publicationDate":"2025-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143817245","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0