Journal of Constructional Steel Research最新文献

Shape optimisation of metal additive manufacturing connections in lightweight steel structures 轻钢结构中金属增材制造连接的形状优化

IF 4 2区工程技术

Journal of Constructional Steel Research Pub Date : 2026-06-01 Epub Date: 2026-02-14 DOI: 10.1016/j.jcsr.2026.110290

Chuandong Xie , Alireza Bagheri Sabbagh , Ehsan Bakhshivand , Ornella Iuorio

{"title":"Shape optimisation of metal additive manufacturing connections in lightweight steel structures","authors":"Chuandong Xie , Alireza Bagheri Sabbagh , Ehsan Bakhshivand , Ornella Iuorio","doi":"10.1016/j.jcsr.2026.110290","DOIUrl":"10.1016/j.jcsr.2026.110290","url":null,"abstract":"<div><div>The application of metal additive manufacturing (AM) to connections in lightweight side framing structure is explored. Two connection concepts are considered, namely key-wheel (KW) and gear-wheel (GW) connections. To identify the optimal wheel geometries for the proposed KW and GW connections, a genetic algorithm with multiple-objectives optimisation framework was employed. The optimised parameters included wheel radius <span><math><mi>R</mi></math></span>, tooth number <span><math><mi>n</mi></math></span>, along with other geometrical wheel parameters. The optimisation objectives were to maximise the initial rotational stiffness, yield strength and peak strength directly for the connections with Laser Metal Deposition (LMD) process, while an additional constraint of normalising these objectives with respect to material use was introduced for the connection with Wire Arc Additive Manufacturing (WAAM) process. The optimisation results suggest a wheel shape with 12 elongated teeth for the KW connection, and a shallow-tooth wheel shape for the GW connection. The maximum joist deflections of the frame-level analysis are reduced by 14%–20% when employing the optimised connections, while the normalised initial stiffness, yield strength and peak strength are increased by 69.6%–101.2%, 58.7%–212.6%, 48.8%–164.7%, respectively. In general, GW connection exhibits greater level of mechanical properties compared to the KW connection, while both connections offer viable alternatives since each of them showed trade-offs depending on performance requirements and practicality.</div></div>","PeriodicalId":15557,"journal":{"name":"Journal of Constructional Steel Research","volume":"241 ","pages":"Article 110290"},"PeriodicalIF":4.0,"publicationDate":"2026-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146192460","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

Eccentric compression behavior of stainless steel‑carbon steel-UHPC double-skin tubular stub column 不锈钢-碳钢- uhpc双层管状短柱的偏心受压性能

IF 4 2区工程技术

Journal of Constructional Steel Research Pub Date : 2026-06-01 Epub Date: 2026-02-14 DOI: 10.1016/j.jcsr.2026.110296

Huixiang Wang , Xiaoyu Yang , Yu Bian , Ye Liu

{"title":"Eccentric compression behavior of stainless steel‑carbon steel-UHPC double-skin tubular stub column","authors":"Huixiang Wang , Xiaoyu Yang , Yu Bian , Ye Liu","doi":"10.1016/j.jcsr.2026.110296","DOIUrl":"10.1016/j.jcsr.2026.110296","url":null,"abstract":"<div><div>Conventional concrete-filled steel tubular (CFST) and double-skin tubular (DST) columns may exhibit limited confinement efficiency and durability when high-strength concrete and aggressive service environments are involved. To address these limitations, this study investigates a stainless steel–carbon steel–UHPC double-skin tubular (UFDSST) stub column as a high-performance composite solution. Eccentric compression tests on 19 specimens were conducted to characterize failure modes, load–deformation responses, and sectional strain behavior under varying eccentricity ratios and diameter-to-thickness ratios. A refined finite element model was validated against the experiments and further employed for parametric analysis. The results indicate that increasing eccentricity significantly reduces ultimate axial capacity and axial stiffness (up to approximately 65% and 40%, respectively), while enhancing ultimate bending moment and post-peak ductility due to the progressive dominance of tensile steel action. Sectional strain distributions remain approximately linear up to peak load, supporting the applicability of sectional analysis. Based on the combined experimental and numerical database, a practical design method for predicting ultimate eccentric capacity is proposed and shown to provide comparable or improved accuracy relative to existing design codes (mean ratio ≈ 1.03, COV ≈ 0.08). These findings support the application of UFDSST members in durability-sensitive and high-performance structural systems.</div></div>","PeriodicalId":15557,"journal":{"name":"Journal of Constructional Steel Research","volume":"241 ","pages":"Article 110296"},"PeriodicalIF":4.0,"publicationDate":"2026-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146192461","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 modeling and analytical predictions of high-performance CFDST columns 高性能CFDST柱的数值模拟与分析预测

IF 4 2区工程技术

Journal of Constructional Steel Research Pub Date : 2026-06-01 Epub Date: 2026-02-13 DOI: 10.1016/j.jcsr.2026.110294

Przemyslaw Schurgacz , Rebekka Winkler , Markus Knobloch

{"title":"Numerical modeling and analytical predictions of high-performance CFDST columns","authors":"Przemyslaw Schurgacz , Rebekka Winkler , Markus Knobloch","doi":"10.1016/j.jcsr.2026.110294","DOIUrl":"10.1016/j.jcsr.2026.110294","url":null,"abstract":"<div><div>Concrete-filled double-steel tube (CFDST) columns are increasingly used in high-rise buildings and heavily loaded structures due to their excellent strength and deformation capabilities. The use of high-performance materials (ultra-high-strength steel and high-strength concrete) facilitates slender and material-efficient structural column designs. However, current design standards, e.g., Eurocode 4, do not explicitly account for the behavior of such advanced configurations, leading to uncertainties in stability assessment and structural design.</div><div>This study develops and validates two numerical models, a 3D solid model in ABAQUS and a fiber-based model in OpenSees, using large-scale experimental data from slender CFDST columns for validation. The models reproduce load–deformation responses, strain distributions, and failure modes across a broad range of slenderness levels. Parametric studies highlight that high-performance materials significantly enhance load capacity in stocky columns, while their benefits diminish in slender column configurations due to global buckling.</div><div>The post-peak behavior of concrete is shown to critically influence ultimate load predictions, particularly in stocky configurations. Comparisons between results obtained from OpenSees and ABAQUS demonstrate the importance of multiaxial stress states and confinement effects in advanced material systems. Furthermore, a statistical evaluation of a broad parametric finite element dataset indicates that homogeneous CFDST columns align well with existing buckling curve classifications, whereas hybrid configurations exhibit greater scatter.</div><div>These findings support the reliable and efficient use of high-performance materials in CFDST systems, providing design-relevant insights for improving the applicability of current design standards. Future experimental investigations on stocky hybrid configurations are recommended to refine stability classifications and ensure reliable structural assessment.</div></div>","PeriodicalId":15557,"journal":{"name":"Journal of Constructional Steel Research","volume":"241 ","pages":"Article 110294"},"PeriodicalIF":4.0,"publicationDate":"2026-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146192462","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

Movement restriction device with energy dissipation using bolted friction joints 采用螺栓摩擦接头的消能运动限制装置

IF 4 2区工程技术

Journal of Constructional Steel Research Pub Date : 2026-06-01 Epub Date: 2026-02-13 DOI: 10.1016/j.jcsr.2026.110278

Ryo Ninomiya , Yusuke Kobayashi , Nobuhiro Yamazaki , Kunitaro Hashimoto

{"title":"Movement restriction device with energy dissipation using bolted friction joints","authors":"Ryo Ninomiya , Yusuke Kobayashi , Nobuhiro Yamazaki , Kunitaro Hashimoto","doi":"10.1016/j.jcsr.2026.110278","DOIUrl":"10.1016/j.jcsr.2026.110278","url":null,"abstract":"<div><div>This study developed a simple and practical seismic movement restriction device for steel railway bridges by incorporating high-strength bolted friction joints into conventional steel brackets. Full-scale dynamic loading tests demonstrated that untreated hot-dip galvanized surfaces provided stable sliding behavior with minimal post-slip load reduction and significant energy dissipation capacity. Adjusting the number of bolts enables flexible performance control and supports rational seismic design under moderate to severe earthquakes.</div><div>The device was designed to achieve unidirectional energy dissipation through a single, first-occurrence sliding event at the galvanized interface, based on the premise that restoring-force elements are not used. This concept provides a simple and economical retrofit solution that can be installed without interfering with train operations, making the device suitable for existing bridges where bearing replacement is difficult.</div><div>Full-scale loading tests confirmed that post-slip load gradually increased with displacement, primarily due to changes in the galvanized surface condition such as galling and wear. The post-slip force was found to be nearly proportional to the number of bolts, indicating that device capacity can be tuned without significant dependence on bolt arrangement. Time-history response analyses further showed that the high-frequency load fluctuations observed during sliding occurred at frequencies much higher than the natural frequency of bridge components, resulting in negligible influence on structural displacement.</div></div>","PeriodicalId":15557,"journal":{"name":"Journal of Constructional Steel Research","volume":"241 ","pages":"Article 110278"},"PeriodicalIF":4.0,"publicationDate":"2026-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146162055","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-based design model and design-code assessment for axially-loaded hexagonal CFDST short columns 轴向荷载下六角形CFDST短柱基于约束的设计模型及设计规范评定

IF 4 2区工程技术

Journal of Constructional Steel Research Pub Date : 2026-06-01 Epub Date: 2026-02-13 DOI: 10.1016/j.jcsr.2026.110284

Shagea Alqawzai , Nguyen Thi Qui , Aawag Mohsen Alawag , Mohamed Elchalakani , Bo Yang

{"title":"Confinement-based design model and design-code assessment for axially-loaded hexagonal CFDST short columns","authors":"Shagea Alqawzai , Nguyen Thi Qui , Aawag Mohsen Alawag , Mohamed Elchalakani , Bo Yang","doi":"10.1016/j.jcsr.2026.110284","DOIUrl":"10.1016/j.jcsr.2026.110284","url":null,"abstract":"<div><div>Hexagonal concrete-filled steel tube (CFST) and concrete-filled double-skin steel tube (CFDST) columns offer structural efficiency and practical advantages, but current design codes lack specific provisions for their axial resistance, leading to inconsistent and sometimes inaccurate strength estimates. To address this gap, this study presents a confinement-based design model that captures the restraining effects of the hexagonal steel tube and stiffeners on the sandwiched concrete. A comprehensive dataset of experimental and numerical results for axially-loaded hexagonal CFST/CFDST columns was compiled to evaluate the performance of existing international design codes and analytical approaches. The comparative assessment shows that design provisions for circular sections in Eurocode 4, GB-50936-2014, AS/NZS-2327-17, and AIJ-2008 provide reasonably accurate strength estimates, with mean estimation ratios between 1.02 and 1.05, while AISC-360-16 and CSA-S16–19 significantly underestimate axial capacity, and T/CCES-7-2020 and BS-5400 significantly overestimate it. For square and rectangular provisions, Eurocode 4 and AS/NZS-2327-17 remain slightly conservative, but AISC-360-16, CSA-S16–19, and T/CCES-7-2020 produce unreliable and generally unsafe estimations. Although several analytical models provide greater accuracy than the code-based design equations, the proposed confinement-based model achieves the highest predictive accuracy and a reliability index of 2.55. As a result, the proposed model is highly recommended for practical design applications of hexagonal CFST/CFDST columns.</div></div>","PeriodicalId":15557,"journal":{"name":"Journal of Constructional Steel Research","volume":"241 ","pages":"Article 110284"},"PeriodicalIF":4.0,"publicationDate":"2026-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146162057","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

Stress-strain models of austenitic stainless steels produced by advanced 3D printing methods 采用先进的3D打印方法生产的奥氏体不锈钢的应力应变模型

IF 4 2区工程技术

Journal of Constructional Steel Research Pub Date : 2026-06-01 Epub Date: 2026-02-13 DOI: 10.1016/j.jcsr.2026.110286

Ye Yao , Xin-Zhu Liang , Meng Chen , Qiang Zhang

{"title":"Stress-strain models of austenitic stainless steels produced by advanced 3D printing methods","authors":"Ye Yao , Xin-Zhu Liang , Meng Chen , Qiang Zhang","doi":"10.1016/j.jcsr.2026.110286","DOIUrl":"10.1016/j.jcsr.2026.110286","url":null,"abstract":"<div><div>Wire arc additive manufacturing (WAAM) and selective laser melting (SLM) are two advanced three-dimensional (3D) printing manufacturing methods. This paper presents the proposal of the constitutive stress-strain models of austenitic stainless steels produced by advanced WAAM and SLM printing methods. The existing tensile coupon tests of WAAM and SLM austenitic stainless steels were first collected, including a total of 301 WAAM specimens and 85 SLM specimens. It should be noted that the quality of the 3D printed specimens highly relies on the well settings of the critical printing parameters. Therefore, the effects of the critical printing parameters such as specimen test orientation, thickness, welding voltage, welding current, wire feeding rate, layer thickness and inter-layer temperature of WAAM as well as scanning speed, energy density and laser power of SLM on the material properties were then analyzed. Finally, three constitutive stress-strain models are proposed for the machined WAAM, as-built WAAM and SLM austenitic stainless steels, respectively. The proposed stress-strain models only require two basic parameters of 0.2% proof stress and elastic modulus as inputs. Other material parameters of ultimate strain, ultimate stress and strain hardening exponents needed in the proposed material models are determined by using the proposed predictive expressions which are also in terms of the elastic modulus and 0.2% proof stress. The proposed stress-strain models can fit well with test results, which can be used to predict their stress-strain behavior, and are also suitable in the future numerical analysis for the structural response of WAAM and SLM steels.</div></div>","PeriodicalId":15557,"journal":{"name":"Journal of Constructional Steel Research","volume":"241 ","pages":"Article 110286"},"PeriodicalIF":4.0,"publicationDate":"2026-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146162056","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

Enhancing the fatigue behavior of inclined-cracked steel plates using CFRP plates: Test and numerical investigations CFRP增强斜裂纹钢板的疲劳性能：试验与数值研究

IF 4 2区工程技术

Journal of Constructional Steel Research Pub Date : 2026-06-01 Epub Date: 2026-02-13 DOI: 10.1016/j.jcsr.2026.110285

Hai-Tao Wang , Bo Gao , Jing-Yu Lin , Ya-Qiang Yang , Jianzhe Shi

{"title":"Enhancing the fatigue behavior of inclined-cracked steel plates using CFRP plates: Test and numerical investigations","authors":"Hai-Tao Wang , Bo Gao , Jing-Yu Lin , Ya-Qiang Yang , Jianzhe Shi","doi":"10.1016/j.jcsr.2026.110285","DOIUrl":"10.1016/j.jcsr.2026.110285","url":null,"abstract":"<div><div>This study presents combined experimental and numerical investigations into using CFRP plates to enhance the fatigue behavior of steel plates with initial inclined cracks. An efficient numerical simulation framework based on the combined use of ABAQUS and FRANC3D was developed, which significantly improves modeling efficiency compared with conventional ABAQUS simulations. The proposed framework was employed to predict the fatigue behavior of the specimens, identify the dominant parameter governing the fatigue performance, and conduct parametric analyses. Fatigue tests indicate that under tensile fatigue loading, inclined cracks initially propagated under mixed-mode I/II conditions and then rapidly transitioned to Mode-I propagation. The fatigue life of the repaired specimens reached 3.9–4.8 times those of the unrepaired specimens, showing the high effectiveness of CFRP plates in improving fatigue behavior. As the initial angle increased from 0° to 45°, the fatigue life of the unrepaired and CFRP-repaired steel plates increased by 73.4% and 39.7%, respectively. Numerical simulations show that the proposed modeling method can effectively evaluate fatigue life and crack growth behavior, with good agreement with experimental observations. It was further revealed that for the specimens used in this study, the projected crack length was the dominant parameter affecting fatigue performance, whereas the initial angle had a minor influence on the crack propagation and fatigue life. Finally, parametric research was conducted to clarify the effects of initial crack angle, damage level, CFRP thickness, and repair configuration on fatigue behavior.</div></div>","PeriodicalId":15557,"journal":{"name":"Journal of Constructional Steel Research","volume":"241 ","pages":"Article 110285"},"PeriodicalIF":4.0,"publicationDate":"2026-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146192463","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

Path-dependent stress-strain model for SRCFST columns under axial compression 轴压下SRCFST柱的路径依赖应力-应变模型

IF 4 2区工程技术

Journal of Constructional Steel Research Pub Date : 2026-06-01 Epub Date: 2026-02-13 DOI: 10.1016/j.jcsr.2026.110291

Yong Huang , Gengchen Wu , Xia Yang

{"title":"Path-dependent stress-strain model for SRCFST columns under axial compression","authors":"Yong Huang , Gengchen Wu , Xia Yang","doi":"10.1016/j.jcsr.2026.110291","DOIUrl":"10.1016/j.jcsr.2026.110291","url":null,"abstract":"<div><div>Steel-reinforced concrete-filled circular steel tubular (SRCFST) is becoming a competitive and attractive structure in high-rise and super-high-rise buildings owing to its superior mechanical behavior produced by the composite action, which can substantially decrease the size and meanwhile increase the ductility. However, current design specifications for concrete-filled circular steel tubular are not applicable for SRCFST. Meanwhile, few studies have been carried out on SRCFST which leads to an inadequate validity of existing stress-strain models in capturing the full range behavior of SRCFST. In this paper, aiming at simulating the uni-axial performance of SRCFST columns and achieving better design efficiency of SRCFST in complex scenarios, 27 uni-axial compression tests were conducted on the SRCFST columns. A simplified confine model for the core concrete was suggested by taking into account the confinement effects of steel tube and section steel. Through a thorough analysis on the relation between the confining stress and the hoop strains, an enhanced hoop-axial strain model for the SRCFST columns was proposed. Afterwards, a passive confinement constitutive model for the core concrete was proposed through an iterative procedure. Finally, an additional 6 SRCFST columns were tested to validate the effectiveness of the proposed method. The results demonstrate that the analytical method can accurately capture the stress-strain curve of SRCFST columns under compression, as well as the ultimate compressive bearing capacity.</div></div>","PeriodicalId":15557,"journal":{"name":"Journal of Constructional Steel Research","volume":"241 ","pages":"Article 110291"},"PeriodicalIF":4.0,"publicationDate":"2026-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146192932","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

Fatigue assessment framework for steel-concrete-composite bridges considering component-degradation and corrosion coupled effects 考虑构件退化和腐蚀耦合效应的钢-混凝土组合桥梁疲劳评估框架

IF 4 2区工程技术

Journal of Constructional Steel Research Pub Date : 2026-06-01 Epub Date: 2026-02-13 DOI: 10.1016/j.jcsr.2026.110297

Wei Wang , Yuqiang Zhang

{"title":"Fatigue assessment framework for steel-concrete-composite bridges considering component-degradation and corrosion coupled effects","authors":"Wei Wang , Yuqiang Zhang","doi":"10.1016/j.jcsr.2026.110297","DOIUrl":"10.1016/j.jcsr.2026.110297","url":null,"abstract":"<div><div>Existing fatigue assessments of steel-concrete composite girder bridges often neglect the critical interaction between vehicle-induced degradation and environmental corrosion. To address this limitation, this study introduces a comprehensive life-cycle framework designed to elucidate the fatigue damage evolution under these coupled actions. A vehicle-bridge coupled vibration system was first established, in which the vehicle and bridge model were determined based on the AASHTO bridge design specifications. Subsequently, corrosion and degradation models for key structural elements, including road surface condition (RSC), concrete deck, and steel girders, were developed. Building on this foundation, a time-dependent fatigue analysis framework was proposed, which iteratively updates the finite element model based on the coupled system's dynamic responses to capture the synergistic effects of corrosion and vehicle-induced degradation. The results demonstrate that the coupled action induces a severe synergistic acceleration of fatigue damage accumulation (<em>FDA</em>) and reduces bridge service time by at least 45% compared to individual action. Furthermore, the analysis reveals the competing mechanism of component degradation on the stress range and thus on the fatigue damage accumulation of fatigue details. These findings highlight the imperative to integrate coupled mechanical-environmental degradation into fatigue design and maintenance strategies to ensure long-term structural safety and serviceability.</div></div>","PeriodicalId":15557,"journal":{"name":"Journal of Constructional Steel Research","volume":"241 ","pages":"Article 110297"},"PeriodicalIF":4.0,"publicationDate":"2026-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146162058","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

Lateral performance of plywood-sheathed cold-formed steel shear wall: Experimental and numerical investigations 胶合板冷弯型钢剪力墙的横向性能：实验和数值研究

IF 4 2区工程技术

Journal of Constructional Steel Research Pub Date : 2026-05-01 Epub Date: 2026-02-05 DOI: 10.1016/j.jcsr.2026.110279

Xiaofeng Sun , Zhaozhuo Gan , Lie Luo , Zhiyang Cheng

{"title":"Lateral performance of plywood-sheathed cold-formed steel shear wall: Experimental and numerical investigations","authors":"Xiaofeng Sun , Zhaozhuo Gan , Lie Luo , Zhiyang Cheng","doi":"10.1016/j.jcsr.2026.110279","DOIUrl":"10.1016/j.jcsr.2026.110279","url":null,"abstract":"<div><div>Plywood, as an engineered wood product, offers excellent mechanical properties and cost-effectiveness, making it a promising sheathing candidate for cold-formed steel (CFS) shear walls. However, limited research has hindered its application compared to other sheathing materials. This paper presents a comprehensive experimental and numerical investigation into the lateral performance of plywood-sheathed CFS shear walls. Fifteen full-scale specimens were tested to evaluate the effects of sheathing thickness, perimeter screw spacing, screw diameter, and loading protocol. For a configuration with 2.44 × 2.44 m size, 12 mm sheathing, 4.8 mm screws, and 150 mm perimeter screw spacing, the wall exhibited an elastic stiffness of 1.47 kN/mm and a shear strength of 16.1 kN/m. Results indicate that shear performance is governed by connection behavior. Densifying perimeter screws to 50 mm significantly enhanced shear capacity but may lead to a reduction in ductility if the framing is not concurrently strengthened. A detailed finite element model was developed and verified against the experimental data. A subsequent parametric study investigated the effects of stud spacing, stud section size, field screw spacing, and wall aspect ratio on wall performance. Results indicated that increasing stud spacing reduces shear capacity, whereas stud section size has negligible impact on ultimate strength under proper overstrength design, and shear strength per unit length remained relatively constant for aspect ratios up to 2:1.</div></div>","PeriodicalId":15557,"journal":{"name":"Journal of Constructional Steel Research","volume":"240 ","pages":"Article 110279"},"PeriodicalIF":4.0,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146190797","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