Journal of Constructional Steel Research最新文献_第6页

Web-post buckling behaviour of composite beams with large elliptically-based web openings

IF 4 2区工程技术

Journal of Constructional Steel Research Pub Date : 2025-03-14 DOI: 10.1016/j.jcsr.2025.109483

Eduardo Vedovetto Santos , Felipe Piana Vendramell Ferreira , Konstantinos Daniel Tsavdaridis , Carlos Humberto Martins , R. Mark Lawson

{"title":"Web-post buckling behaviour of composite beams with large elliptically-based web openings","authors":"Eduardo Vedovetto Santos , Felipe Piana Vendramell Ferreira , Konstantinos Daniel Tsavdaridis , Carlos Humberto Martins , R. Mark Lawson","doi":"10.1016/j.jcsr.2025.109483","DOIUrl":"10.1016/j.jcsr.2025.109483","url":null,"abstract":"<div><div>Steel beams with elliptically-based web openings have shown higher global shear resistance and increased flexural stiffness compared to those with circular web openings. However, the structural behaviour of steel-concrete composite beams with elliptically-based web openings has yet to be explored. This paper aims to investigate the web-post buckling resistance of steel-concrete composite beams with elliptically-based web openings since this failure mode has become more critical than the Vierendeel mechanism is such perforated beams. A high-fidelity finite element model was developed and a parametric study with 270 models was conducted based on key geometric parameters and various loading conditions. The influence of the geometric parameters of the elliptically-based web opening was examined, and the resistances were presented on bare steel (non-composite) perforated beams in line with previous findings. A previously developed model for predicting the web-post buckling resistance was assessed. The use of the buckling curve ‘c’, as specified by SCI P355 (2011), provided more effective results. However, buckling curve ‘<em>α</em>’ offers better accuracy for calculating the web-post buckling resistance in composite beams with elliptically-based web openings.</div></div>","PeriodicalId":15557,"journal":{"name":"Journal of Constructional Steel Research","volume":"229 ","pages":"Article 109483"},"PeriodicalIF":4.0,"publicationDate":"2025-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143619434","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

Nonlinear analysis of elliptical CFST columns at ambient and elevated temperatures

IF 4 2区工程技术

Journal of Constructional Steel Research Pub Date : 2025-03-13 DOI: 10.1016/j.jcsr.2025.109491

Milan Bursać, Svetlana M. Kostić

{"title":"Nonlinear analysis of elliptical CFST columns at ambient and elevated temperatures","authors":"Milan Bursać, Svetlana M. Kostić","doi":"10.1016/j.jcsr.2025.109491","DOIUrl":"10.1016/j.jcsr.2025.109491","url":null,"abstract":"<div><div>The paper studies the application of the concentrated plasticity 3D beam/column finite element on the nonlinear analysis of elliptical concrete-filled steel tube (CFST) composite columns at both reference temperature and during fire conditions. The element based on the generalized plasticity material model is extended and adjusted to analyze elliptical composite CFST columns. It has plastic hinges at the ends and an elastic component in between and accounts for the gradual cross-section plastification and nonlinear geometry under large displacements. The plastic hinge capacity is described by the yield surface. This study presents a novel, highly accurate polynomial expression for the yield surface of elliptical CFST sections. This expression applies to ambient and elevated temperatures and is validated on a wide range of section parameters. Additionally, the paper discusses the definition and selection of other element parameters, such as elastic component properties and average thermal dilatation definition. Through an extensive validation study that includes 117 beam or column tests and one frame example, the response of the presented model is compared to other experimental or numerical studies. The study confirms the element’s capability to capture the overall behavior of elliptical CFST columns with high accuracy (within the 15% margins) and being on the safe side. Besides, the comparison with the fiber-based beam/column element, referring to the required calculation time, proves its high computational efficiency.</div></div>","PeriodicalId":15557,"journal":{"name":"Journal of Constructional Steel Research","volume":"229 ","pages":"Article 109491"},"PeriodicalIF":4.0,"publicationDate":"2025-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143610422","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

Performance evaluation in connection-head-gapped braced frame: Reduced-scale static test and numerical simulation

IF 4 2区工程技术

Journal of Constructional Steel Research Pub Date : 2025-03-13 DOI: 10.1016/j.jcsr.2025.109477

Daiki Sato , Chengrui Luo , Kazuhiko Kasai , Masaki Minoji , Shugo Takahashi , Dave Montellano Osabel , Alex Shegay , Kazuhiro Saburi , Tatsuhiko Maeda , Hiroyuki Masuda , Kazuki Watai

{"title":"Performance evaluation in connection-head-gapped braced frame: Reduced-scale static test and numerical simulation","authors":"Daiki Sato , Chengrui Luo , Kazuhiko Kasai , Masaki Minoji , Shugo Takahashi , Dave Montellano Osabel , Alex Shegay , Kazuhiro Saburi , Tatsuhiko Maeda , Hiroyuki Masuda , Kazuki Watai","doi":"10.1016/j.jcsr.2025.109477","DOIUrl":"10.1016/j.jcsr.2025.109477","url":null,"abstract":"<div><div>Many existing high-rise buildings in Japan conform to outdated codes and require seismic retrofit to meet current standards. While installing additional seismic devices is a proven solution, these devices usually bring additional stiffness, alter dynamic characteristics of structures and exacerbate uneven stress distribution. This paper proposes a novel connection-head-gapped brace to mitigate such adverse effects and safeguard structures during major earthquake events. The novel device incorporates a gapped connection-head above steel braces. When the earthquake-induced frame displacement is small (gap opens), steel braces remain dormant; when the displacement reaches a predetermined threshold (gap closes), the steel braces engage with frame, enhancing lateral stiffness and limiting further frame displacement. Consequently, the connection-head-gapped brace preserves the dynamic characteristics of structures as much as possible and provides additional stiffness only during major earthquake events. A one-span connection-head-gapped braced frame was designed and subjected to a static cyclic test to validate the performance of the novel brace. This paper details the concept and configuration of the novel brace, along with the reduced-scale static cyclic test and finite element simulation of the connection-head-gapped braced frame. The results demonstrate that only after gap closure the steel braces provide additional stiffness and change stress distribution in frame. The novel connection-head-gapped brace presents a promising retrofit solution for enhancing the seismic resilience of existing buildings.</div></div>","PeriodicalId":15557,"journal":{"name":"Journal of Constructional Steel Research","volume":"229 ","pages":"Article 109477"},"PeriodicalIF":4.0,"publicationDate":"2025-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143610421","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Elastic analytical model of riveted double web angle connections in tension

IF 4 2区工程技术

Journal of Constructional Steel Research Pub Date : 2025-03-13 DOI: 10.1016/j.jcsr.2025.109398

Lynita Sarou , Maël Couchaux , Mohammed Hjiaj , Stéphane Sire , Jean-François Douroux , Alain Desbordes

{"title":"Elastic analytical model of riveted double web angle connections in tension","authors":"Lynita Sarou , Maël Couchaux , Mohammed Hjiaj , Stéphane Sire , Jean-François Douroux , Alain Desbordes","doi":"10.1016/j.jcsr.2025.109398","DOIUrl":"10.1016/j.jcsr.2025.109398","url":null,"abstract":"<div><div>T-stubs and L-stubs loaded in tension are generally assumed to be in contact with a rigid foundation due to symmetry that influences the prying force and stiffness of these components. However, for double web angle riveted connections the angle rests on deformable beam/column web. The objective of the present paper is to take into account the effects of this deformability on the development of the contact area, the rivet forces and the tensile stiffness. For this purpose, an enhanced theory of beam in contact with a tensionless Winkler foundation is adopted in the contact and lift-off areas and the axial/bending flexibility of the rivet are also considered. The two legs of the angle are fully modelled in interaction with rivets. A numerical analysis is also developed with ANSYS in order to conduct a sensitivity study to assess the influence of the horizontal leg thickness. The analytical model determines with a good accuracy the rivet force, initial stiffness, position of the prying forces but also the shape of the contact pressure distribution.</div></div>","PeriodicalId":15557,"journal":{"name":"Journal of Constructional Steel Research","volume":"229 ","pages":"Article 109398"},"PeriodicalIF":4.0,"publicationDate":"2025-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143610518","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 behavior, hysteretic model, and finite-element analysis of a low-prestressed self-centering friction dissipative brace

IF 4 2区工程技术

Journal of Constructional Steel Research Pub Date : 2025-03-12 DOI: 10.1016/j.jcsr.2025.109511

Xiantie Wang, Wenlong Lu, Jiaxin Wu, Wanggeng Liang, Chuandong Xie

{"title":"Experimental behavior, hysteretic model, and finite-element analysis of a low-prestressed self-centering friction dissipative brace","authors":"Xiantie Wang, Wenlong Lu, Jiaxin Wu, Wanggeng Liang, Chuandong Xie","doi":"10.1016/j.jcsr.2025.109511","DOIUrl":"10.1016/j.jcsr.2025.109511","url":null,"abstract":"<div><div>Traditional self-centering energy dissipative (SCED) braces require the initial prestressing force to exceed the damping force of the energy dissipation system for effective recentering, which limits their widespread application. To address this issue, a ratchet device that transfers only tension forces is connected in series with the energy dissipation system, significantly reducing the resistance during the recentering process and lowering the initial prestressing force required for self-centering. This paper proposed a novel low-prestressed self-centering friction energy dissipative (LP-SCFED) brace. The brace utilizes basalt fiber-reinforced polymer (BFRP) tendons to provide recentering capability and incorporates a friction device for energy dissipation. The mechanical properties of the brace were analyzed, and a hysteretic model for the brace was developed and validated. Quasi-static tests were conducted on seven 1/3-scaled specimens to investigate the effects of the initial prestressing force, the total area of BFRP tendons, and friction force on the seismic behavior of the brace. The results show that specimens with friction and prestressing devices exhibited a typical flag-shaped hysteresis curve, stable energy dissipation capacity, and good self-centering ability with the self-centering ratio exceeding 98 % at 2.0 % drift. The ratchet device eliminated the resistance of the friction device during unloading, allowing the brace to recenter with an initial prestressing force of only 3.2 % of the friction force. Besides, the self-centering behavior was insensitive to the initial prestressing force and the total area of the BFRP tendons. Under 3.0 % drift, all components remained elastic, and no damage occurred to the main structural elements. The finite element (FE) model agreed well with the test results, effectively reflecting the mechanical characteristics of the brace.</div></div>","PeriodicalId":15557,"journal":{"name":"Journal of Constructional Steel Research","volume":"229 ","pages":"Article 109511"},"PeriodicalIF":4.0,"publicationDate":"2025-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143601376","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

Response modification factor of high-strength steel frame-tube structures with replaceable shear links

IF 4 2区工程技术

Journal of Constructional Steel Research Pub Date : 2025-03-12 DOI: 10.1016/j.jcsr.2025.109510

Yan Guo , Ming Lian , Mingzhou Su

{"title":"Response modification factor of high-strength steel frame-tube structures with replaceable shear links","authors":"Yan Guo , Ming Lian , Mingzhou Su","doi":"10.1016/j.jcsr.2025.109510","DOIUrl":"10.1016/j.jcsr.2025.109510","url":null,"abstract":"<div><div>In high-strength steel frame-tube structures with replaceable shear links (HSS-FTS-LSL), shear links made of low-yield point steel are placed in the center of deep beams, while the beams and columns are constructed using high-strength steel. During seismic activity, these shear links yield to dissipate energy, while the deep beams and columns either remain elastic or only partially enter the plastic range due to the use of high-strength steel. To investigate the response modification factor of HSS-FTS-LSL structures, three sets of twelve buildings were designed, with variations in the number of floors, the length of the shear links, and their arrangement. An improved pushover analysis method, using a distributed lateral force adjustment approach, was employed to account for the impact of higher modes. The response modification factor (R) and displacement amplification factor (C<sub>d</sub>) for each of the twelve buildings were then calculated using the enhanced capacity spectrum method. The effects of the number of floors, shear link length, and their arrangement on the response modification factors were also studied. Based on these findings, recommended values for R-factor and C<sub>d</sub>-factor are provided. Additionally, a modified design response spectrum was proposed. One of the HSS-FTS-LSL buildings was redesigned following this proposed seismic design response spectrum, and nonlinear dynamic analyses were conducted on both the original and redesigned structures. The comparison of seismic performance and steel usage between the two designs confirmed the accuracy of the suggested R-factor and C<sub>d</sub>-factor values in this study.</div></div>","PeriodicalId":15557,"journal":{"name":"Journal of Constructional Steel Research","volume":"229 ","pages":"Article 109510"},"PeriodicalIF":4.0,"publicationDate":"2025-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143601711","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

Research on out-of-plane cyclic behavior of unilateral stainless steel composite shear walls

IF 4 2区工程技术

Journal of Constructional Steel Research Pub Date : 2025-03-12 DOI: 10.1016/j.jcsr.2025.109498

Lili Wu , Haining Cui , Haipeng Wu , Xingge Wang , Yue Yu

{"title":"Research on out-of-plane cyclic behavior of unilateral stainless steel composite shear walls","authors":"Lili Wu , Haining Cui , Haipeng Wu , Xingge Wang , Yue Yu","doi":"10.1016/j.jcsr.2025.109498","DOIUrl":"10.1016/j.jcsr.2025.109498","url":null,"abstract":"<div><div>To investigate the out-of-plane load-bearing behavior of unilateral stainless steel double steel plate composite shear walls (USCW), a total of eight specimens were designed and divided into two distinct groups based on wall-thickness scale ratios of 1:5 and 1:2.5, with corresponding width-to-thickness ratios of 6 and 4, respectively. The specimens were tested under out-of-plane cyclic loading, where an axial compression ratio of 0.1 was maintained. The failure modes, hysteretic behavior, stiffness degradation, and energy dissipation of USCW were also analyzed, as well as the effects of stud reduction. Results indicated that all specimens primarily presented bending failure modes. There is no significant difference in bearing capacity degradation, ductility, and energy dissipation capacity between USCW and SCW. For USCW specimens with equal-strength steel plates on both sides, the bearing capacity difference between the two loading directions is 2 %, whereas for USCW with equal-thickness steel plates, it reaches 17.8 %. The equal-strength specimens exhibited better symmetry in bearing capacity and ductility. The reduction of the number of studs through increasing the stud spacing by 50 % had a minor impact of less than 10 % on the ductility and load-bearing capacity of USCW. Unilateral heating conditions had a negligible effect on the out-of-plane bearing performance of USCW. Furthermore, when the walls primarily experience flexural-shear failure dominated by bending, a formula for the out-of-plane bending capacity of USCW is proposed. This formula takes into account the influence of the differences in the steel plates on the two sides as well as the shear effect.</div></div>","PeriodicalId":15557,"journal":{"name":"Journal of Constructional Steel Research","volume":"229 ","pages":"Article 109498"},"PeriodicalIF":4.0,"publicationDate":"2025-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143601712","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 investigation on slender concrete-filled double-skin corrugated steel tubes under eccentric compression

IF 4 2区工程技术

Journal of Constructional Steel Research Pub Date : 2025-03-12 DOI: 10.1016/j.jcsr.2025.109499

Bo Lu , Yong Fang , Hua Yang

{"title":"Experimental investigation on slender concrete-filled double-skin corrugated steel tubes under eccentric compression","authors":"Bo Lu , Yong Fang , Hua Yang","doi":"10.1016/j.jcsr.2025.109499","DOIUrl":"10.1016/j.jcsr.2025.109499","url":null,"abstract":"<div><div>Concrete-filled double-skin thin-walled corrugated steel tubes (CFDCSTs) are novel hollow section composite members consisting of outer and inner galvanized corrugated steel tubes (CSTs) with sandwiched reinforced concrete. They have shown great applicability in scenarios such as bridge piers and exposed beam-columns in buildings. While the failure modes, working mechanisms, and load-bearing capacities of short CFDCST members have been studied, their stability performance requires further investigation. Therefore, thirteen large-scale slender CFDCST specimens with effective lengths of 2763 mm and 4263 mm were prepared and tested under eccentric compression in the study. The test variables were the slenderness ratio, eccentricity ratio, hollow ratio, outer CST thickness, and longitudinal reinforcement ratio. The test results indicated that CFDCST specimens failed in a ductile mode and exhibited desirable mechanical performance. As the hollow ratio increased, the bearing capacity decreased while the ductility index increased; the reduction in bearing capacity was less pronounced as the eccentricity ratio and slenderness ratio increased. The thin-walled outer CSTs provided effective confinement, while the thin-walled inner CSTs offered sufficient internal support. Finally, existing design models were modified based on the test results, and their applicability for slender CFDCST members was validated.</div></div>","PeriodicalId":15557,"journal":{"name":"Journal of Constructional Steel Research","volume":"229 ","pages":"Article 109499"},"PeriodicalIF":4.0,"publicationDate":"2025-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143601366","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

Cyclic experiments on screwed connections for corrugated steel sheathed CFS shear walls

IF 4 2区工程技术

Journal of Constructional Steel Research Pub Date : 2025-03-11 DOI: 10.1016/j.jcsr.2025.109493

Zhao Yan , Zhang Wenying , Du Xiuli , Yu Shaole , Yu Cheng

{"title":"Cyclic experiments on screwed connections for corrugated steel sheathed CFS shear walls","authors":"Zhao Yan , Zhang Wenying , Du Xiuli , Yu Shaole , Yu Cheng","doi":"10.1016/j.jcsr.2025.109493","DOIUrl":"10.1016/j.jcsr.2025.109493","url":null,"abstract":"<div><div>This study investigates the hysteretic load-displacement behavior of screwed connections in cold-formed steel (CFS) shear walls sheathed with corrugated steel sheathing (CSS) under cyclic loading. The screwed connection performance of corrugated steel sheathed CFS shear walls is governed by a combination of shear and tensile forces, with a particular focus on the hysteretic response perpendicular to the corrugations in this research. The test results revealed that under negative loading, the peak load of specimens increased with sheathing thickness but decreased with higher corrugation rib. Specimens exhibited slight variations in peak load under positive loading, while substantial stiffness differences were observed among those with different sheathing thicknesses and types. Screw spacing and loading method demonstrated negligible influence on hysteretic responses. Additionally, a constitutive hysteresis model was developed based on experimental data for refined numerical simulations of corrugated steel sheathed shear walls. The work is intended to provide critical missing information for the design of framed shear walls with CSS in multi-storey buildings.</div></div>","PeriodicalId":15557,"journal":{"name":"Journal of Constructional Steel Research","volume":"229 ","pages":"Article 109493"},"PeriodicalIF":4.0,"publicationDate":"2025-03-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143592263","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

A review of experiments on cold-formed steel members at elevated temperatures

IF 4 2区工程技术

Journal of Constructional Steel Research Pub Date : 2025-03-11 DOI: 10.1016/j.jcsr.2025.109482

Jiangyue Xie, Benjamin W. Schafer, Thomas Gernay

{"title":"A review of experiments on cold-formed steel members at elevated temperatures","authors":"Jiangyue Xie, Benjamin W. Schafer, Thomas Gernay","doi":"10.1016/j.jcsr.2025.109482","DOIUrl":"10.1016/j.jcsr.2025.109482","url":null,"abstract":"<div><div>Cold-formed steel assemblies are commonly used for partition walls in buildings, playing a critical role for fire compartmentation, and are also increasingly used as load-bearing structural systems due to their high strength-to-weight ratio and suitability for off-site prefabrication. This evolution leads to a need to characterize the behavior of these systems under the combined action of loading and fire. The objective of this paper is to provide a review of experimental studies on cold-formed steel members and assemblies at elevated temperatures. A comparative overview of testing methods is presented with a focus on the heating and loading procedures, temperature distributions, and end boundary conditions. The review covers experimental tests on lipped channels and built-up sections in compression and flexure, and wall and floor assemblies. The impact of elevated temperature on material properties and member strength is explored. Drawing on data from 30 experimental studies, the review examines the effects of end boundary conditions, section shape, temperature distribution, gypsum sheathing, and internal insulation on the stability and strength of the thin-walled members. Recommendations for future research include member experiments with non-uniform section temperatures and under localized fires, comparisons of steady-state and transient tests, and studies on lipped channel joists. By synthesizing key findings and identifying research gaps, this review aims to guide future experimental studies and support the advancement of building codes and performance-based fire design methods for cold-formed steel structures.</div></div>","PeriodicalId":15557,"journal":{"name":"Journal of Constructional Steel Research","volume":"229 ","pages":"Article 109482"},"PeriodicalIF":4.0,"publicationDate":"2025-03-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143592241","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