Journal of Constructional Steel Research最新文献_第9页

Experimental study on the seismic performance of replaceable links with corrugated webs

IF 4 2区工程技术

Journal of Constructional Steel Research Pub Date : 2025-02-25 DOI: 10.1016/j.jcsr.2025.109443

Guochao Ren , Zhanzhong Yin , Dazhe Feng , Bo Yang , Youtao Zhu

{"title":"Experimental study on the seismic performance of replaceable links with corrugated webs","authors":"Guochao Ren , Zhanzhong Yin , Dazhe Feng , Bo Yang , Youtao Zhu","doi":"10.1016/j.jcsr.2025.109443","DOIUrl":"10.1016/j.jcsr.2025.109443","url":null,"abstract":"<div><div>Separately designed shear links with flat webs are favored due to their stable energy dissipation capacity and superior mechanical properties. However, the welding process between a flat steel web and stiffeners increases the residual stress and reduces the plasticity of the link. Additionally, this welding process increases the amount of steel required and the cost of the specimens. To address these concerns, corrugated plates have been introduced as shear link webs. Corrugated webs provide the expected shear capacity with less thickness and do not require welded stiffening ribs. These corrugated webs increase plastic deformability and mitigate the adverse effects of welding between the web and stiffeners on seismic performance. To investigate the peak load, mechanical properties, hysteresis behavior, and failure mode of shear links with corrugated webs, cyclic loading tests were conducted on seven specimens. The hysteresis curves, energy dissipation coefficients, skeleton curves and shear stress distributions of the specimens were comparatively analyzed. Furthermore, the effects of parameters such as <em>θ, b,</em> and the height of the web on the stiffness, peak load, ductility, and energy dissipation performance of the shear links were investigated. Based on the rotating stress field theory, a model for the peak load of a shear link with a corrugated web was developed. The results showed that the shear links with corrugated webs exhibited good energy dissipation capacity, and the energy dissipation coefficients were all greater than 2.95, with a maximum bearing capacity of 300.69 kN. The maximum difference between the calculated results using the proposed model and the test data was 19.21 %, validating the suitability of the model for predicting the peak load of replaceable shear links with corrugated webs.</div></div>","PeriodicalId":15557,"journal":{"name":"Journal of Constructional Steel Research","volume":"228 ","pages":"Article 109443"},"PeriodicalIF":4.0,"publicationDate":"2025-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143479131","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 behaviour of corroded concrete-filled high-strength steel tubular columns

IF 4 2区工程技术

Journal of Constructional Steel Research Pub Date : 2025-02-24 DOI: 10.1016/j.jcsr.2025.109438

Qingqing Xiong , Xinhua Wang , Yansheng Du , Wang Zhang , Ranran Li

{"title":"Axial compressive behaviour of corroded concrete-filled high-strength steel tubular columns","authors":"Qingqing Xiong , Xinhua Wang , Yansheng Du , Wang Zhang , Ranran Li","doi":"10.1016/j.jcsr.2025.109438","DOIUrl":"10.1016/j.jcsr.2025.109438","url":null,"abstract":"<div><div>This study investigates the degradation of the axial compression performance of concrete-filled high-strength steel tubular (CFHST) columns following chloride corrosion. The morphology of the corroded steel tubes was analyzed before the axial loading test. After 180 days of corrosion exposure, the depth of the corrosion pits ranged between 1.07 mm and 1.58 mm, displaying a normal distribution. Thirteen concrete-filled steel tubular columns, consisting of normal-strength and high-strength steel tubes, were tested under axial loading. The study examined the effects of corrosion ratio, steel tube section, steel tube thickness, and steel strength on the failure mode, bearing capacity, ductility, and confinement effect. The results demonstrated that increased corrosion ratio led to more pronounced local buckling of the external steel tube, resulting in decreased bearing capacity and ductility. Corrosion significantly weakened the CFHST specimens' bearing capacity compared to those with normal-strength steel tubes. Five methods were employed to establish a finite element model of the corroded CFHST columns, among which the method incorporating random pitting damage and the original strength of the steel proved to be the most reasonable. A parametric analysis was conducted to explore the impact of random pitting damage on the bearing capacity of the CFHST columns. Additionally, a comparison of the methods for calculating the peak bearing capacity of axial compression according to various codes indicated that all current codes were conservative. Consequently, a more precise calculating method was proposed to forecast the peak bearing capacity of corroded CFHST columns under axial compression.</div></div>","PeriodicalId":15557,"journal":{"name":"Journal of Constructional Steel Research","volume":"228 ","pages":"Article 109438"},"PeriodicalIF":4.0,"publicationDate":"2025-02-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143479238","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 of rib-to-deck joints repaired by adhesively bonded patches: Tests and models

IF 4 2区工程技术

Journal of Constructional Steel Research Pub Date : 2025-02-23 DOI: 10.1016/j.jcsr.2025.109441

Xudong Wang , Davide Leonetti , Johan Maljaars , Changqing Miao , H.H. (Bert) Snijder

{"title":"Fatigue of rib-to-deck joints repaired by adhesively bonded patches: Tests and models","authors":"Xudong Wang , Davide Leonetti , Johan Maljaars , Changqing Miao , H.H. (Bert) Snijder","doi":"10.1016/j.jcsr.2025.109441","DOIUrl":"10.1016/j.jcsr.2025.109441","url":null,"abstract":"<div><div>Rib-to-deck joints in orthotropic steel decks of bridges are known to be prone to fatigue cracks. Repairing such cracks allows for prolonging the life of the infrastructure, provided that structural safety is guaranteed. The fatigue performance of rib-to-deck joints repaired by adhesively bonded patches is experimentally and numerically studied. Two repair schemes, one including bonding patches on the top of the deck and the other one involving bonding patches between the bottom of the deck and the U-rib, are considered. The patch material, patch size, and load levels are varied. The experiments show that specimens repaired with large patch sizes and high Young's modulus have a longer residual fatigue life than similar specimens with small patch sizes and low Young's modulus. Specimens subjected to low load levels demonstrate better bonding behavior during the test than similar specimens subjected to high load levels. The residual fatigue life of the rib-to-deck joints before and after repair are derived from the tests. A finite element analysis reveals that a thicker patch gives a greater reduction of stress but debonding becomes more likely at the edge of the patch. This study provides guidance to the design and application of adhesively bonded patches in repairing rib-to-deck joints in orthotropic steel decks.</div></div>","PeriodicalId":15557,"journal":{"name":"Journal of Constructional Steel Research","volume":"228 ","pages":"Article 109441"},"PeriodicalIF":4.0,"publicationDate":"2025-02-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143471592","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

SCF formulae of corrugated-web steel girders: Experiments and numerical analysis

IF 4 2区工程技术

Journal of Constructional Steel Research Pub Date : 2025-02-22 DOI: 10.1016/j.jcsr.2025.109445

Guoji Zuo , Lewei Tong , Zhenbei Zhao , Hailin Wang , Weizhou Shi , Yang Yan

{"title":"SCF formulae of corrugated-web steel girders: Experiments and numerical analysis","authors":"Guoji Zuo , Lewei Tong , Zhenbei Zhao , Hailin Wang , Weizhou Shi , Yang Yan","doi":"10.1016/j.jcsr.2025.109445","DOIUrl":"10.1016/j.jcsr.2025.109445","url":null,"abstract":"<div><div>To facilitate the fatigue design of corrugated-web steel girders (CWGs) utilising the hot spot stress method, this study presents an experimental and numerical investigation of the hot spot stress concentration factors (SCFs) of trapezoidal corrugated-web steel girders (TCWGs) and sinusoidal corrugated-web steel girders (SCWGs) under uniform bending. Static test results indicate that the stress concentration on the flange of TCWGs can be effectively diminished by reducing the corrugation angle and length, and increasing the corner radius. The SCF of SCWGs is markedly lower than that of TCWGs, with the measured SCF of the latter being approximately 1.15 to 1.32 times higher than that of the former. Finite element (FE) models of TCWGs and SCWGs with welded seams were developed using ABAQUS software. A method for calculating the dimensions of the hot spot stress extrapolation region was proposed. This method enabled high-quality meshing in the extrapolated region, ensuring that the positions of the test gradient strain gauges were precisely determined in the FE models. Utilising the test-validated FE models, parametric analyses of SCF in the constant bending region of TCWGs and SCWGs were conducted. The parametric studies of the SCFs of TCWGs and SCWGs considered the effects of seven and four dimensionless parameters, respectively. Calculation formulae for SCFs of TCWGs and SCWGs under uniform bending were proposed using regression analysis. The validity of these formulae was confirmed by comparing them with test and FE results.</div></div>","PeriodicalId":15557,"journal":{"name":"Journal of Constructional Steel Research","volume":"228 ","pages":"Article 109445"},"PeriodicalIF":4.0,"publicationDate":"2025-02-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143464605","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 wind-resistant capacity of transmission towers with buckling-restraint-reinforced angle-steel-members (BRR-ASMs)

IF 4 2区工程技术

Journal of Constructional Steel Research Pub Date : 2025-02-21 DOI: 10.1016/j.jcsr.2025.109434

Cong Zeng , Tianyuan Cai , Zhongjian Chen , Zhaoqing Chen , Ning Su

{"title":"Enhancing the wind-resistant capacity of transmission towers with buckling-restraint-reinforced angle-steel-members (BRR-ASMs)","authors":"Cong Zeng , Tianyuan Cai , Zhongjian Chen , Zhaoqing Chen , Ning Su","doi":"10.1016/j.jcsr.2025.109434","DOIUrl":"10.1016/j.jcsr.2025.109434","url":null,"abstract":"<div><div>The collapse of numerous transmission towers highlights the importance of improving the stability of angle steel components. However, the current reinforcement methods for angle steel components of transmission towers often suffer from drawbacks such as installation complexity and the need for damaged reinforcement angle steel. This study proposes a new type of buckling restrained reinforced angle steel member (BRR-ASM) for reinforcing the angle steel on the existing main tower legs of transmission towers. The buckling performance of the proposed BRR-ASMs were investigated based on compression tests. Three different reinforcement types were considered as full-length BRR(F-BRR), half-length BRR(H-BRR), and partial BRR(P-BRR), which can increase the bearing capacity of primary member by 101.3 %, 57.04 %, and 49.80 %, respectively. The corresponding constitutive models of the BRR-ASMs were established for the convenience of finite element analysis on structures with BRR-ASMs. Through wind-induced response analysis on a realistic transmission tower-line system, the enhancement of BRR-ASMs on wind-resistant capacity was evaluated. Consequently, the ultimate wind speed of the transmission tower-line system increased from 34 to 38 m/s. The buckling failure on the main tower leg members is effectively prevented. Considering the high reinforcement efficiency and low economy cost, the P-BRR scheme is recommended for engineering practice.</div></div>","PeriodicalId":15557,"journal":{"name":"Journal of Constructional Steel Research","volume":"228 ","pages":"Article 109434"},"PeriodicalIF":4.0,"publicationDate":"2025-02-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143453893","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

Effect of the employed soil constitutive model on the response of large-span soil steel bridges to soil and truck loading

IF 4 2区工程技术

Journal of Constructional Steel Research Pub Date : 2025-02-21 DOI: 10.1016/j.jcsr.2025.109436

Ahmed Elsawwaf, Hany El Naggar, John Newhook

{"title":"Effect of the employed soil constitutive model on the response of large-span soil steel bridges to soil and truck loading","authors":"Ahmed Elsawwaf, Hany El Naggar, John Newhook","doi":"10.1016/j.jcsr.2025.109436","DOIUrl":"10.1016/j.jcsr.2025.109436","url":null,"abstract":"<div><div>Current design codes and standards recommend refined analysis methods to accurately predict the behaviour of large-span soil-metal bridges. Consequently, the FE modelling of these structures must employ an appropriate constitutive model for the soil capable of mimicking its performance under various loading conditions. This study investigates the influence of different soil constitutive models on the performance of soil-steel arch bridges with spans up to 32.4 m. A comprehensive analysis was performed using a validated 3D finite element model to evaluate the suitability of three widely adopted soil models: the Mohr-Coulomb (MC) model, the Hardening Soil (HS) model, and the Hardening Soil model with small-strain stiffness (HSs). The results indicate that the choice of soil model significantly affects the predicted structural response. The MC model consistently overestimates the settlement and lateral displacement of the foundations, particularly for larger spans, while underestimating upward deformations of the culvert crown during backfilling. Under traffic loading, the MC model underestimated the outward bending moment at the culvert crown by up to 83 % for smaller spans but showed a reduced discrepancy for larger spans. Overall, the HS and HSs models provided more accurate predictions of the vertical and lateral displacements, bending moments, and thrust forces. The findings underscore the importance of selecting an appropriate soil model in finite element analyses to ensure reliable design and safe performance of soil-steel composite structures.</div></div>","PeriodicalId":15557,"journal":{"name":"Journal of Constructional Steel Research","volume":"228 ","pages":"Article 109436"},"PeriodicalIF":4.0,"publicationDate":"2025-02-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143453895","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

Local instability and interactive mechanism analysis of UHTCC-encased rectangular steel tubular columns

IF 4 2区工程技术

Journal of Constructional Steel Research Pub Date : 2025-02-21 DOI: 10.1016/j.jcsr.2025.109444

Yun-Long Chen , Jing-Zhong Tong , Qing-Hua Li , En-Yuan Zhang , Wei Gao , Shi-Lang Xu

{"title":"Local instability and interactive mechanism analysis of UHTCC-encased rectangular steel tubular columns","authors":"Yun-Long Chen , Jing-Zhong Tong , Qing-Hua Li , En-Yuan Zhang , Wei Gao , Shi-Lang Xu","doi":"10.1016/j.jcsr.2025.109444","DOIUrl":"10.1016/j.jcsr.2025.109444","url":null,"abstract":"<div><div>In recent years, the ultra-high toughness cementitious composite (UHTCC) has become a focal point of research owing to its exceptional crack resistance and excellent ductility. These characteristics are particularly beneficial for preventing corrosion resulting from the penetration of chloride ions and water. Building on these advantageous properties, this study introduces a novel UHTCC-encased steel tubular (UEST) column, employing UHTCC as an outer cladding for the hollow steel tube, to achieve both lightweight construction and improved durability. A theoretical model was developed to investigate the local instability of the UEST columns, and the axial resistance of UEST columns can be predicted using the proposed model. Subsequently, finite element (FE) models of UEST columns, equipped with studs or perfobond strips (PBL), were established and validated against the existing experimental data. Additionally, the interactive mechanism of each component (steel and UHTCC layer) of UEST columns was comprehensively investigated using the FE model. The theoretical model achieved high accuracy in predicting the axial resistance of UEST columns with both thick and thin-walled steel tubes, resulting in an average error of 2.4 %. Finally, some practical design recommendations for UEST columns were derived from the theoretical model.</div></div>","PeriodicalId":15557,"journal":{"name":"Journal of Constructional Steel Research","volume":"228 ","pages":"Article 109444"},"PeriodicalIF":4.0,"publicationDate":"2025-02-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143453894","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 cyclic behavior of concrete-filled round-ended stainless steel tubular columns

IF 4 2区工程技术

Journal of Constructional Steel Research Pub Date : 2025-02-21 DOI: 10.1016/j.jcsr.2025.109446

Feng-Wei Shi , Shuo Dong , Hai-Tao Chen

{"title":"Experimental investigation on cyclic behavior of concrete-filled round-ended stainless steel tubular columns","authors":"Feng-Wei Shi , Shuo Dong , Hai-Tao Chen","doi":"10.1016/j.jcsr.2025.109446","DOIUrl":"10.1016/j.jcsr.2025.109446","url":null,"abstract":"<div><div>This paper presents a comprehensive investigation into the cyclic behavior of four concrete-filled round-ended stainless steel tubular (CFRSST) columns and two concrete-filled round-ended carbon steel tubular (CFRCST) columns. Experimental results revealed that the CFRSST specimens exhibited local buckling, steel tube fracture, weld failure, and concrete crushing at the column base. The hysteretic loops were full without significant pinching, indicating excellent ductility and energy dissipation. Compared to CFRSST columns under weak axis bending, those under strong axis bending demonstrated higher initial stiffness, bearing capacity, and superior ductility ratio and energy dissipation. CFRSST columns with stainless steel tubes outperformed CFRCST columns with carbon steel tubes in terms of ductility and energy dissipation, while maintaining similar capacity and initial stiffness. Furthermore, CFRSST columns with hollow sections exhibited higher bearing capacity, initial stiffness, ductility, and energy dissipation under strong axis bending. However, hollow-section CFRSST columns demonstrated lower ductility and energy dissipation than their solid-section counterparts. Refined finite element (FE) models of CFRSST columns were developed and validated against experimental data. Further parametric analyses were conducted to assess the effects of concrete strength, steel tube strength (both outer and inner), and steel tube thickness on the cyclic behavior of CFRSST columns. A predictive method for calculating the bearing capacity of CFRSST columns is proposed, with calculated results closely matching the experimental data.</div></div>","PeriodicalId":15557,"journal":{"name":"Journal of Constructional Steel Research","volume":"228 ","pages":"Article 109446"},"PeriodicalIF":4.0,"publicationDate":"2025-02-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143454711","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

Design of transmission line towers by metaheuristic algorithms: A comparative study

IF 4 2区工程技术

Journal of Constructional Steel Research Pub Date : 2025-02-21 DOI: 10.1016/j.jcsr.2025.109426

Marcos Wilson Ogata , Herbert Martins Gomes , Felipe Schaedler de Almeida

{"title":"Design of transmission line towers by metaheuristic algorithms: A comparative study","authors":"Marcos Wilson Ogata , Herbert Martins Gomes , Felipe Schaedler de Almeida","doi":"10.1016/j.jcsr.2025.109426","DOIUrl":"10.1016/j.jcsr.2025.109426","url":null,"abstract":"<div><div>Latticed towers are essential components of high-voltage transmission lines. Saving resources in their construction is crucial for economic and environmental efficiency, but the safety of these structures under severe loads is of major importance for the reliability of the power distribution system. This work explores optimization techniques to improve the structural design of transmission line towers according to international code specifications and considering loads due to construction, wind, and cable rupture. A self-supporting tower with 52 m high and 1721 members is designed using the proposed methodology, showing that the computational tool obtains competitive solutions. Four metaheuristic algorithms are applied to solve the problem and compared in terms of efficiency and computational cost in extensive tests with more than 1080 independent optimizations with different parameter settings. The Generalized Normal Distribution Optimization greatly outperformed the other methods, raising as a good alternative for the optimization-aided structural design.</div></div>","PeriodicalId":15557,"journal":{"name":"Journal of Constructional Steel Research","volume":"228 ","pages":"Article 109426"},"PeriodicalIF":4.0,"publicationDate":"2025-02-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143464604","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 research on innovative prefabricated artificial plastic hinge joints

IF 4 2区工程技术

Journal of Constructional Steel Research Pub Date : 2025-02-21 DOI: 10.1016/j.jcsr.2025.109440

Chenglong Wu , Haitao Song , Ben Mou , Kexuan Xin , Jinjie Men

{"title":"Experimental and theoretical research on innovative prefabricated artificial plastic hinge joints","authors":"Chenglong Wu , Haitao Song , Ben Mou , Kexuan Xin , Jinjie Men","doi":"10.1016/j.jcsr.2025.109440","DOIUrl":"10.1016/j.jcsr.2025.109440","url":null,"abstract":"<div><div>To address the challenges of limited seismic toughness and complex construction in beam-column joints of prefabricated frame structures, this study introduces innovative artificial plastic hinge joints (HJs). Quasi-static tests were conducted to examine the failure modes, strain distribution, and hysteresis behavior of HJs. The impact of replaceable buckling connection plates (RBCPs) and shear energy dissipation rods (SEDRs) on seismic performance was analyzed, focusing on thickness, strength, and diameter. A stress mechanism for HJs was proposed, and a formula for bending capacity was derived and validated. The results indicate that HJs fail due to beam rotation around the pin, RBCP buckling under compression, and SEDR shear failure. HJs exhibited excellent seismic performance, with ductility coefficients ranging from 3.93 to 8.40 and equivalent viscous damping coefficients between 0.25 and 0.40. The validated finite element model reliably simulates the seismic behavior of HJs, accurately capturing their failure modes, load-bearing capacity, and energy dissipation characteristics. Increased RBCPs thickness and strength significantly enhanced bearing capacity and initial stiffness, while larger SEDRs diameters improved post-yield capacity. The sequential buckling and shear failure of RBCPs and SEDRs effectively function as dual “fuses,” ensuring reliable force transmission.</div><div>The theoretical formula accurately predicts the bending capacity of HJs.</div></div>","PeriodicalId":15557,"journal":{"name":"Journal of Constructional Steel Research","volume":"228 ","pages":"Article 109440"},"PeriodicalIF":4.0,"publicationDate":"2025-02-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143453896","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