International Journal of Steel Structures最新文献_第8页

Towards a General Design Method for Thin-walled Lipped Channel Columns 薄壁唇形槽柱通用设计方法探讨

IF 1.4 4区工程技术

International Journal of Steel Structures Pub Date : 2026-01-19 DOI: 10.1007/s13296-025-01017-8

Guilherme C. de Salles

{"title":"Towards a General Design Method for Thin-walled Lipped Channel Columns","authors":"Guilherme C. de Salles","doi":"10.1007/s13296-025-01017-8","DOIUrl":"10.1007/s13296-025-01017-8","url":null,"abstract":"<div>This paper develops a unified method to predict the compressive strength of fixed-ended lipped channel columns. Using numerical data from different authors, novel design curves are calibrated for isolated buckling modes failure—local (L), distortional (D|) and global (G) buckling – as well as L-D and L-D-G interactive failure modes. The basis of the method is similar to the Direct Strength Method’s L-G treatment, in which the resistance related to each buckling mode affects the slenderness rate of the next mode to be verified. The main difference are the order of the modes for the calculations, from the mode with most post-buckling reserve (L) to the mode with least post-buckling reserve (G), and the inclusion of the distortional mode in the process. The proposed design curves are then compared to a large data of failure loads from numerical simulations. The preliminary results for 1493 numerical columns show that the proposed set of equations are reliable (average results for fu, numerical/fproposed are 1.014 ± 0.067, resistance factor ϕ = 0.914) and provide a unified procedure to obtain the ultimate strength of columns undergoing different failures modes.</div>","PeriodicalId":596,"journal":{"name":"International Journal of Steel Structures","volume":"26 1","pages":"46 - 56"},"PeriodicalIF":1.4,"publicationDate":"2026-01-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s13296-025-01017-8.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147340479","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Experimental and Numerical Evaluation of Fire Performance in Modular Construction 模块化建筑防火性能的实验与数值评估

IF 1.4 4区工程技术

International Journal of Steel Structures Pub Date : 2026-01-19 DOI: 10.1007/s13296-025-01024-9

Joon-Young Choi, Bong-Ho Cho, Ju-Hyung Kim, Tae-Hyu Ha, Kyu-Hong Han, Seul-Ah Kim

引用次数: 0

Wind-induced Response and Vibration Damping Analysis of Large-span Grid Structures Considering Fluid–structure Interaction 考虑流固耦合的大跨度网架结构风致响应及减振分析

IF 1.4 4区工程技术

International Journal of Steel Structures Pub Date : 2026-01-19 DOI: 10.1007/s13296-025-01023-w

Miao Han, Baoyang Yang, Xianggen Gao, Jinwei Jiang, Rong Han

引用次数: 0

Enhancing Load Resistance of Tubular T-Joints in Offshore Platforms Using Collar Plates and Ring Stiffeners 应用环箍板和环箍加强筋增强海洋平台管状t型接头的抗载荷能力

IF 1.4 4区工程技术

International Journal of Steel Structures Pub Date : 2026-01-19 DOI: 10.1007/s13296-025-01020-z

G. R. Iyappan, P. Sangeetha

{"title":"Enhancing Load Resistance of Tubular T-Joints in Offshore Platforms Using Collar Plates and Ring Stiffeners","authors":"G. R. Iyappan, P. Sangeetha","doi":"10.1007/s13296-025-01020-z","DOIUrl":"10.1007/s13296-025-01020-z","url":null,"abstract":"<div>\u0000 \u0000 This study investigates the ultimate strength and deformation behaviour of tubular T-joints, often used in offshore structures, reinforced with collar plates and external ring stiffeners. The nine T-joints for three different β values, 0.25, 0.5 and 0.75 and with two different strengthening techniques (1) external ring stiffeners and (2) collar plate, were studied under brace compression. The effects of key parameters such as β (brace-to-chord diameter ratio), γ (chord slenderness ratio), and stiffener configurations on joint performance were analysed. Finite Element Analysis (FEA) results demonstrated close agreement with experimental data, showing a variation of less than 4%. Reinforcements significantly enhanced load-carrying capacity, with ring stiffeners increasing strength by up to 36% and collar plates by 39%. The optimal parameters, including β = 0.75 and γ = 20, improved stiffness and minimised deformation. Finite Element Analysis (FEA), and EC3 code predictions were compared, demonstrating close agreement with R2 values of 0.9726 and 0.9577 for collar plate and ring-stiffened joints, respectively. These findings highlight the effectiveness of reinforcements in improving joint strength and structural integrity of offshore platform.\u0000 </div>","PeriodicalId":596,"journal":{"name":"International Journal of Steel Structures","volume":"26 1","pages":"121 - 139"},"PeriodicalIF":1.4,"publicationDate":"2026-01-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147340600","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Fatigue Failure Analysis of SS304/EN24/GI Dissimilar Welded Joint in Application of Automatic Opening Door in City Bus 城市客车自动开门用SS304/EN24/GI异种焊接接头疲劳失效分析

IF 1.4 4区工程技术

International Journal of Steel Structures Pub Date : 2026-01-19 DOI: 10.1007/s13296-025-01011-0

Shivaji G. Chavan, D. N. Raut

{"title":"Fatigue Failure Analysis of SS304/EN24/GI Dissimilar Welded Joint in Application of Automatic Opening Door in City Bus","authors":"Shivaji G. Chavan, D. N. Raut","doi":"10.1007/s13296-025-01011-0","DOIUrl":"10.1007/s13296-025-01011-0","url":null,"abstract":"<div>This paper presents methods for determining the fatigue failure analysis of dissimilar welded joints by applying automatic opening doors in city buses. The paper focuses on the problem of determining and evaluating the fatigue life of selected types of welded joints by the application. The study shows the extent to which the simplest method based on the amplitude of nominal stress can be used for calculating fatigue life based on two selected types of joints with different asymmetry coefficients, R = − 1. Three groups of welded models, MS-SS, SS-GI, and MS-GI specimens were designed according to ASTM E466 standard. The FEM model is developed for dissimilar metal welded joints. The present study aims to experimentally investigate the high cycle fatigue strength of dissimilar welded joints subjected to tension–compression loading and Full capacity uniaxial fatigue machine with load 40% YS for MS-SS, MS-GI, and SS-GI dissimilar welded joint conducted. Numerical model developed in high cycle fatigue failure for dissimilar welded joint subjected tension–compression. The numerical results of the welded joint model have been validated with available literature. It shows that the present mathematical model agrees with Shigley & Mischke (2004). Also, parametric studied the effect on fatigue strength by changing: the welded length and welded thickness. The fatigue failure of dissimilar load cycles has been recorded for different models, MS-SS = 230,830 cycle, MS-GI = 166,362 cycle, and SS-GI = 173,867 cycle respectively. The SEM and EBSD observations in the distinct microstructural features, depending on the extent of mixing of both base metals.</div>","PeriodicalId":596,"journal":{"name":"International Journal of Steel Structures","volume":"26 1","pages":"180 - 196"},"PeriodicalIF":1.4,"publicationDate":"2026-01-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147340483","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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 Effects and Axial Compression Behavior of Lightweight Concrete-Filled Circular Aluminum Alloy Composite Stub Columns 轻量化圆形铝合金复合混凝土短柱的约束效应及轴压性能

IF 1.4 4区工程技术

International Journal of Steel Structures Pub Date : 2026-01-19 DOI: 10.1007/s13296-025-01021-y

Songlin Li, Bing Li, Liangzhi Wang, Bo Zhou

{"title":"Confinement Effects and Axial Compression Behavior of Lightweight Concrete-Filled Circular Aluminum Alloy Composite Stub Columns","authors":"Songlin Li, Bing Li, Liangzhi Wang, Bo Zhou","doi":"10.1007/s13296-025-01021-y","DOIUrl":"10.1007/s13296-025-01021-y","url":null,"abstract":"<div>This study investigates the axial compression behavior of lightweight concrete-filled circular aluminum alloy tubular (LCFAT) stub columns for structural lightweighting applications. Nine groups of specimens with varying parameters were tested to examine the effects of the cross-sectional aluminum ratio and a confinement factor on the load-carrying capacity, axial stiffness, and failure modes. To induce ideal failure patterns under axial loading, the specimens were locally wrapped with carbon fiber reinforced polymer (CFRP) at both ends solely to provide end restraint and ensure uniform load transfer; the CFRP was not part of the load-carrying system. The experimental program is complemented by calibrated three-dimensional finite element analyses, which were further employed to conduct parametric studies on concrete strength, alloy yield strength, and tube wall thickness. Based on classical concrete-filled steel tubular (CFST) theory, a strength design model tailored to the aluminum–lightweight concrete interaction is formulated by introducing an elastic modulus reduction factor and a lateral confinement reduction factor. The proposed model captures the key characteristics of the axial response, and the numerical simulations were used to replicate the observed failure patterns and load–displacement curves, supporting an interpretation of the confinement mechanism and behavioral phases. These results provide a theoretical basis for engineering application and design optimization of lightweight composite columns.</div>","PeriodicalId":596,"journal":{"name":"International Journal of Steel Structures","volume":"26 1","pages":"140 - 154"},"PeriodicalIF":1.4,"publicationDate":"2026-01-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147340637","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Research on the Deterioration of Shear Performance of Stud Connections Under Artificial Seawater Erosion 人工海水侵蚀作用下螺柱连接抗剪性能劣化研究

IF 1.4 4区工程技术

International Journal of Steel Structures Pub Date : 2026-01-19 DOI: 10.1007/s13296-025-01022-x

Xian Liang, Jike Shang, Yangsheng Long, Hongquan He, Tingting Wen

{"title":"Research on the Deterioration of Shear Performance of Stud Connections Under Artificial Seawater Erosion","authors":"Xian Liang, Jike Shang, Yangsheng Long, Hongquan He, Tingting Wen","doi":"10.1007/s13296-025-01022-x","DOIUrl":"10.1007/s13296-025-01022-x","url":null,"abstract":"<div>This study investigates the impact of different erosion environments on the shear performance of stud connectors. A series of push-out tests were conducted to systematically analyze the degradation of shear performance in stud connectors of various diameters under the influence of artificial seawater immersion and wet-dry cycling erosion. By examining failure modes, load–displacement curves, ultimate shear capacity, and peak displacement, the trends and mechanisms of shear performance degradation due to artificial seawater erosion were revealed. The experimental results show that with prolonged erosion time, the failure mode of stud connectors transitions from shear failure to concrete crushing failure, accompanied by a significant reduction in shear capacity and peak displacement. Notably, after 56 days of immersion erosion, the shear capacity of the specimens decreased by 50–60%. Compared to immersion erosion, wet-dry cycling erosion had a more significant impact on the stud connectors, with the shear capacity of specimens under wet-dry cycling conditions being approximately 70% of that under immersion erosion. Moreover, the peak displacement of the specimens decreased significantly under wet-dry cycling erosion, indicating a greater degradation of plasticity and ductility of the bolt connections. Based on the experimental results, this study provides a quantitative assessment for evaluating stud performance degradation in structural engineering design.</div>","PeriodicalId":596,"journal":{"name":"International Journal of Steel Structures","volume":"26 1","pages":"155 - 165"},"PeriodicalIF":1.4,"publicationDate":"2026-01-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147340481","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Effective Length Factor of Flexural Stiffness Released Columns in Sidesway Uninhibited and Inhibited Frames 侧移不受约束和受约束框架中受弯刚度释放柱的有效长度因子

IF 1.4 4区工程技术

International Journal of Steel Structures Pub Date : 2026-01-19 DOI: 10.1007/s13296-025-01016-9

He Zhang, Kun Wang, Junfeng Jia, Liang Cai, Zhongqi Wu, Lei Zhang, Jiachao Liu

{"title":"Effective Length Factor of Flexural Stiffness Released Columns in Sidesway Uninhibited and Inhibited Frames","authors":"He Zhang, Kun Wang, Junfeng Jia, Liang Cai, Zhongqi Wu, Lei Zhang, Jiachao Liu","doi":"10.1007/s13296-025-01016-9","DOIUrl":"10.1007/s13296-025-01016-9","url":null,"abstract":"<div>The column ends’ stiffness is released due to the connection to corner foot joints by bolts or nesting. It makes the actual effective length factor μ of this column higher than the calculated value μ0 according to equations in existing standards and codes. A correction factor γ is proposed and multiplied by μ0. The factor β describes the relative flexural stiffness of each column end. Based on elastic buckling analysis of 2156 sidesway uninhibited columns and 2475 sidesway inhibited columns with different β values, relations between γ, β, the flexural stiffness ratio between beams and columns in each end (K1 and K2) are fitted as equations. The high accuracy of these equations has been proven by the coefficient of determination (r2) and the root mean square error (RMSE). Furthermore, the end connection can be treated as rigid when the flexural stiffness of the column ends is no less than 80 times the flexural stiffness per unit length of column ic for sidesway uninhibited columns, or 200ic for sidesway inhibited columns.</div>","PeriodicalId":596,"journal":{"name":"International Journal of Steel Structures","volume":"26 1","pages":"31 - 45"},"PeriodicalIF":1.4,"publicationDate":"2026-01-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147340485","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Estimating the Shear Capacity of Headed Studs Embedded in Solid Sabs 埋置在实体桥架中的头螺柱抗剪能力估算

IF 1.4 4区工程技术

International Journal of Steel Structures Pub Date : 2026-01-19 DOI: 10.1007/s13296-025-01019-6

Ahed Habib, Zaid A. Al-Sadoon, M. Talha Junaid, Samer Barakat, Mohamed Maalej, Salah Altoubat

{"title":"Estimating the Shear Capacity of Headed Studs Embedded in Solid Sabs","authors":"Ahed Habib, Zaid A. Al-Sadoon, M. Talha Junaid, Samer Barakat, Mohamed Maalej, Salah Altoubat","doi":"10.1007/s13296-025-01019-6","DOIUrl":"10.1007/s13296-025-01019-6","url":null,"abstract":"<div>Reinforced concrete-steel composite systems often rely on headed stud shear connectors to transfer forces in solid slab applications. These components play a significant role in structural integrity, especially in scenarios involving high loads. This study collects 224 experimental test results to develop statistical and data-driven methods that predict the shear capacity of headed studs. In this database, the mean shear capacities ranged from approximately 62 kN to nearly 319 kN. Within the study context, a total of 14 machine learning models, including traditional linear and advanced ensemble regressors, are investigated. The study results indicated that advanced ensemble models demonstrate better predictive accuracy than linear and regularized approaches. The best-performing models achieved R2 values as high as 0.98 on the test subset and root mean square errors below 11 kN. The feature importance analyses highlighted the diameter of the stud shank and the diameter of the weld collar as primary factors influencing capacity predictions, while the tensile strength of studs showed lower relevance. The partial dependence plots confirmed nonlinear relationships between input variables and predicted capacities. The comprehensive framework and findings of this study are expected to guide and help scientists and engineers understand and predict stud shear performance.</div>","PeriodicalId":596,"journal":{"name":"International Journal of Steel Structures","volume":"26 1","pages":"72 - 85"},"PeriodicalIF":1.4,"publicationDate":"2026-01-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147340482","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Performance Assessment of Energy-Efficient Deck Plate-Based Hollow-Core Slab System 基于节能甲板板的空心板系统性能评价

IF 1.4 4区工程技术

International Journal of Steel Structures Pub Date : 2026-01-19 DOI: 10.1007/s13296-025-01014-x

Yun-Chul Choi

{"title":"Performance Assessment of Energy-Efficient Deck Plate-Based Hollow-Core Slab System","authors":"Yun-Chul Choi","doi":"10.1007/s13296-025-01014-x","DOIUrl":"10.1007/s13296-025-01014-x","url":null,"abstract":"<div>The aim of the present study is to address the limitations of conventional voice former-based hollow-core systems, especially those arising from the use of void formers, including the risk of toxic gas release in the event of a fire and insufficient energy efficiency, by replacing such void formers with deck plates. Furthermore, a novel precast concrete (PC) hollow-core slab system, wherein openings were formed in the rib cross-sections of PC members, was proposed, and its structural performance was experimentally evaluated. The number of openings (section loss ratio) and the shear reinforcement arrangement (loop and lattice types) were selected as the primary variables. Two-point bending tests were conducted on a total of four specimens for each case. The experimental results demonstrated that the strength and ductility of the lattice-type shear reinforcement decreased with an increasing number of openings, due to the loss of cross-sectional area. In contrast, the loop-type shear reinforcement exhibited improved ductility and maximum load as the number of openings increased. According to the strain analysis results, the lattice-type specimen exhibited a uniform strain distribution in both concrete and reinforcement, confirming its superior distribution of shear stress. The PC hollow-core slab system proposed in this study is expected to combine excellent structural stability with enhanced energy dissipation performance. A future study will focus on verifying the applicability of the developed system to buildings with thermal energy storage designed to utilize excess energy from wind flow in four directions.</div>","PeriodicalId":596,"journal":{"name":"International Journal of Steel Structures","volume":"26 1","pages":"99 - 109"},"PeriodicalIF":1.4,"publicationDate":"2026-01-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147340601","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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