Journal of Constructional Steel Research最新文献_第3页

Theoretical and FEA study on shear performance of novel shear connectors 新型剪力连接件抗剪性能的理论与有限元研究

IF 4 2区工程技术

Journal of Constructional Steel Research Pub Date : 2024-11-28 DOI: 10.1016/j.jcsr.2024.109186

Quansheng Yan, Xingyu Chen, Buyu Jia, Xiaolin Yu, Yang Zheng, Zhiyuan Chen

{"title":"Theoretical and FEA study on shear performance of novel shear connectors","authors":"Quansheng Yan, Xingyu Chen, Buyu Jia, Xiaolin Yu, Yang Zheng, Zhiyuan Chen","doi":"10.1016/j.jcsr.2024.109186","DOIUrl":"10.1016/j.jcsr.2024.109186","url":null,"abstract":"<div><div>Shear connectors are essential components for force transfer in composite beams. Compared to conventional welded-bolt connectors, bolted shear connectors offer the advantage of easy removal. However, traditional bolted connectors for steel-concrete composite beams feature threads on the contact surface, reducing the shear cross-sectional area of the bolts. To address this limitation, this paper proposes a novel type of friction-clamping bolt connector, referred to as Connecting Lock Combination Bolts (CLCB<span><span><sup>1</sup></span></span>). The finite element software ABAQUS was used to develop an analytical model for the CLCB, and a comparative analysis was conducted with traditional connectors. The static performance of the new shear connectors was evaluated, and a shear load capacity formula applicable to CLCB connectors was derived. Additionally, linear and exponential functions were employed to fit the load-slip curve of the CLCB connectors. The results indicate that the shear load capacity of CLCB connectors exceeds that of conventional bolted connectors. Moreover, the bolt diameter and concrete strength are the primary factors influencing the ultimate shear load capacity and stiffness of CLCB connectors. The preload on the bolts enhances the shear stiffness, while parameters such as bolt hole clearance, the height of the lower nutted rod, and the clearance between the upper and lower bolt rods are crucial in ensuring the proper functioning of CLCB connectors. Furthermore, the shear capacity formula provides an accurate prediction of CLCB connector performance with an error margin of less than 6 %, and the load-slip curve model effectively illustrates the load-slip relationship under shear.</div></div>","PeriodicalId":15557,"journal":{"name":"Journal of Constructional Steel Research","volume":"225 ","pages":"Article 109186"},"PeriodicalIF":4.0,"publicationDate":"2024-11-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142746240","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 study on crack propagation characteristics of welded high-strength steel Q690CFD joints 高强钢Q690CFD焊接接头裂纹扩展特性试验研究

IF 4 2区工程技术

Journal of Constructional Steel Research Pub Date : 2024-11-28 DOI: 10.1016/j.jcsr.2024.109177

Jin Jiang , W. Bao , Y. Yu , W.Y. Wang

{"title":"Experimental study on crack propagation characteristics of welded high-strength steel Q690CFD joints","authors":"Jin Jiang , W. Bao , Y. Yu , W.Y. Wang","doi":"10.1016/j.jcsr.2024.109177","DOIUrl":"10.1016/j.jcsr.2024.109177","url":null,"abstract":"<div><div>High-strength steel typically refers to steel with a yield strength greater than or equal to 460 MPa. The heterogeneity caused by welding could impact the mechanical properties base material, weld metal and heat-affected zone. In this study, the welding sequence and crack propagation characteristics of welded high-strength steel joints were experimentally analyzed. It is found that the distribution of residual stresses in both the transverse and longitudinal directions exhibit highly nonlinear characteristics. The magnitude of longitudinal residual stresses can exceed 60 % of the nominal yield stress and the magnitude of transverse residual stresses can exceed 50 % of the nominal yield stress in the regions adjacent to the weld. In the early stage of crack propagation, the crack propagation rate in the HAZ and WM regions is significantly faster than in the base metal. The main differences in crack propagation between the base metal, weld metal, and HAZ occur in the initial and final stages of crack growth. In the stable crack propagation stage, there are no significant differences for the base metal, weld metal, and HAZ. Finally, a normalized crack growth prediction model was proposed with validated accuracy.</div></div>","PeriodicalId":15557,"journal":{"name":"Journal of Constructional Steel Research","volume":"225 ","pages":"Article 109177"},"PeriodicalIF":4.0,"publicationDate":"2024-11-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142746244","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

Retarding effect on cracked steel plates strengthened by Fe-SMA and steel sheets 用 Fe-SMA 和钢板加固的开裂钢板的延缓效应

IF 4 2区工程技术

Journal of Constructional Steel Research Pub Date : 2024-11-27 DOI: 10.1016/j.jcsr.2024.109190

Qiudong Wang , Shanchun Shi , Libin Wang , Zhiqiang Wang , Bohai Ji , Jie Liu

{"title":"Retarding effect on cracked steel plates strengthened by Fe-SMA and steel sheets","authors":"Qiudong Wang , Shanchun Shi , Libin Wang , Zhiqiang Wang , Bohai Ji , Jie Liu","doi":"10.1016/j.jcsr.2024.109190","DOIUrl":"10.1016/j.jcsr.2024.109190","url":null,"abstract":"<div><div>To clarify the differences in the retarding effects by employing the steel and Fe-SMA sheet reinforcements, both fatigue tests and finite element (FE) analysis were conducted in the present study. The experimental phenomenon, monitored strain variation, crack propagation, fatigue life, fatigue fracture surface, and SIFs at the crack tip were analyzed. Compared to the steel sheets reinforcement, better retarding effect could be achieved by the Fe-SMA sheets reinforcement since the SIF has further decreased by 18 % and the fatigue failure life has further increased by 43 % and 22 %. Regarding the steel/Fe-SMA sheets composite reinforcement, the fatigue failure life has decreased by 12 % and 9 %, indicating the inefficiency of such reinforcement configuration. The SIF at the crack tip decreases linearly with the increasing activation temperature of the Fe-SMA sheet. In the presence of an activation temperature of approximately 35 °C, a similar retarding effect to the steel sheets reinforcement could be achieved by bonding Fe-SMA sheets, indicating that it is acceptable to apply the not fully activated Fe-SMA sheet to the reinforcement of cracked components in practical engineering.</div></div>","PeriodicalId":15557,"journal":{"name":"Journal of Constructional Steel Research","volume":"225 ","pages":"Article 109190"},"PeriodicalIF":4.0,"publicationDate":"2024-11-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142720422","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

Hysteretic behavior and design methods of concrete-filled double skin stainless steel tubular beam-columns 混凝土填充双层不锈钢管梁柱的滞回行为和设计方法

IF 4 2区工程技术

Journal of Constructional Steel Research Pub Date : 2024-11-26 DOI: 10.1016/j.jcsr.2024.109181

Feng Zhou , Jing Ji , Baiping Dong

{"title":"Hysteretic behavior and design methods of concrete-filled double skin stainless steel tubular beam-columns","authors":"Feng Zhou , Jing Ji , Baiping Dong","doi":"10.1016/j.jcsr.2024.109181","DOIUrl":"10.1016/j.jcsr.2024.109181","url":null,"abstract":"<div><div>A comprehensive investigation is presented on the behavior of concrete-filled double-skin stainless steel tubular (CFDSST) beam-columns with two types of cross sections, i.e., cross section with external and internal circular hollow section (CHS) tubes and cross section with external square hollow section (SHS) and internal CHS tubes, under cyclic loading. Fine finite element (FE) models of CFDSST beam-columns are developed and validated for hysteretic behavior investigation of CFDSST members. Based on FE models, the influence of material strength, axial compression ratio and other parameters on hysteretic behavior is extensively studied. The results showed that the nominal steel ratio and the axial compressive load level are the major design parameters that mostly affect the hysteretic performance of CFDSST beam-columns. Moreover, existing design methods for concrete-filled double-skin steel tubular (CFDST) are evaluated for their use in capacity prediction of CFDSST specimens through regression analysis of large datasets. The results showed the existing methods are overall conservative for CFDSST specimens. Accounting for the strain-hardening effect of stainless steel, modification of existing methods is proposed for accurate and reliable capacity prediction of CFDSST specimens.</div></div>","PeriodicalId":15557,"journal":{"name":"Journal of Constructional Steel Research","volume":"225 ","pages":"Article 109181"},"PeriodicalIF":4.0,"publicationDate":"2024-11-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142720421","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

In-plane stability behaviours of concrete-filled steel tubular catenary arches under different loading conditions 不同荷载条件下混凝土填充钢管悬臂拱的平面内稳定性行为

IF 4 2区工程技术

Journal of Constructional Steel Research Pub Date : 2024-11-26 DOI: 10.1016/j.jcsr.2024.109184

Chenyang Wei , Changyong Liu , Qing Hu , Xinhao Han , Yuyin Wang , Lifeng Wang

{"title":"In-plane stability behaviours of concrete-filled steel tubular catenary arches under different loading conditions","authors":"Chenyang Wei , Changyong Liu , Qing Hu , Xinhao Han , Yuyin Wang , Lifeng Wang","doi":"10.1016/j.jcsr.2024.109184","DOIUrl":"10.1016/j.jcsr.2024.109184","url":null,"abstract":"<div><div>Concrete-filled steel tubular (CFST) catenary arches, renowned for their superior loading-bearing efficiency due to the alignment of the arch axis with the thrust line, have become the predominant choice for large-span arch bridges over the past decade. However, research on CFST catenary arches remains limited, with most studies focusing on the in-plane strength of circular and parabolic arches. And the existing design methods are tailored to a narrow range of loading conditions, which raises concerns about their applicability to CFST catenary arches. Therefore, this paper addresses this gap by designing and testing six CFST catenary arches under three different loading conditions (quarter-point concentrated load, mid-span concentrated load, and five-point concentrated loads). The failure modes, load-displacement curves, cross-sectional strain and stress development, and confinement effects were compared and analysed among the loading conditions. Additionally, the finite element (FE) models using beam elements were developed and verified against the test results to conduct a parametric analysis. The influence of arch axis coefficient, slenderness ratio, rise-to-span ratio, and steel ratio on the in-plane strength of the CFST catenary arches under seven different loading conditions was discussed. Finally, by accounting for the non-uniform distribution of internal forces along the arch rib, a lower-bound design formula for the in-plane strength of CFST catenary arches under various loading conditions was proposed, and comparisons with numerical results show that the proposed method can provide conservative predictions.</div></div>","PeriodicalId":15557,"journal":{"name":"Journal of Constructional Steel Research","volume":"225 ","pages":"Article 109184"},"PeriodicalIF":4.0,"publicationDate":"2024-11-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142701753","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

The development of a component-based model for extended endplate joints in fire-induced progressive collapse scenarios 为火灾诱发的渐进式坍塌情景中的扩展端板连接开发基于组件的模型

IF 4 2区工程技术

Journal of Constructional Steel Research Pub Date : 2024-11-26 DOI: 10.1016/j.jcsr.2024.109182

Zhan Guo , Guokeng Li , Ying Chen , Xiaoyong Zhang

{"title":"The development of a component-based model for extended endplate joints in fire-induced progressive collapse scenarios","authors":"Zhan Guo , Guokeng Li , Ying Chen , Xiaoyong Zhang","doi":"10.1016/j.jcsr.2024.109182","DOIUrl":"10.1016/j.jcsr.2024.109182","url":null,"abstract":"<div><div>This paper develops a generalized component-based model (CBM) for extended endplate (EP) joints designed to be applicable in progressive collapse scenarios induced by fire, which is capable of capturing the nonlinear full-range behavior of EP joints from initial yielding to ultimate failure. Based on refined FE modeling established in preceding studies, a simplified CBM method is established to simulate the collapse resistance of EP joints subjected to fire-induced column removal scenarios. For panel zones of fire-exposed EP joints, a trilinear model is applied to characterize the three-phase force-deformation behaviors of “linear-hardening-unloading” for axial springs, while a relatively large shear stiffness is used to characterize the minor shear deformation at the panel zones. For connecting zones of fire-exposed EP joints, the respective constitutive models and corresponding spring parameters for diverse spring components are established based on the strain distributions and loading transmission mechanisms of equivalent T-stub components. The proposed simplified CBMs with detailed spring parameters as well as their constitutive laws were incorporated into the ABAQUS program to validate against both experimental results and refined FE modeling. A comparative study with test data manifests that the proposed CBM method can precisely capture the collapse response of EP joints at elevated temperatures with high computing efficiency.</div></div>","PeriodicalId":15557,"journal":{"name":"Journal of Constructional Steel Research","volume":"225 ","pages":"Article 109182"},"PeriodicalIF":4.0,"publicationDate":"2024-11-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142701702","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

Seismic performance of the joint between unequal-depth steel beam and CFDST column 不等深钢梁与 CFDST 柱连接处的抗震性能

IF 4 2区工程技术

Journal of Constructional Steel Research Pub Date : 2024-11-26 DOI: 10.1016/j.jcsr.2024.109175

Xueyuan Yan , Anlong Li , Xuhong Liu , Xiaoying Wei , Huimin Mao

{"title":"Seismic performance of the joint between unequal-depth steel beam and CFDST column","authors":"Xueyuan Yan , Anlong Li , Xuhong Liu , Xiaoying Wei , Huimin Mao","doi":"10.1016/j.jcsr.2024.109175","DOIUrl":"10.1016/j.jcsr.2024.109175","url":null,"abstract":"<div><div>Combining the characteristics of concrete-filled double-skin steel tube (CFDST), this paper devised a joint construction form featuring low-beam with haunch partially penetrating into the inner layer of steel tube, thus proposing the joint between unequal-depth steel beam with haunch and CFDST column. This paper conducted finite element analysis of this novel joint under low-cycle reversed loading using ABAQUS software. By taking beam height ratio, axial compression ratio, beam-column width ratio, beam flange width-thickness ratio, and beam web height-width ratios as analysis parameters, the seismic performance of the joint was systematically studied. The results indicated that beam height ratio, axial compression ratio, beam-column width ratio, and beam flange width-thickness ratio have a significant impact on the seismic performance of the joint, while the beam web height -width ratios has a minor effect. Furthermore, through the analysis of the force mechanism and internal force derivation of the core area of the joint between unequal-depth steel beam with haunch and CFDST column, a shear bearing capacity calculation method applicable to such connections was established. This calculation method aligns well with the numerical analysis results and can accurately assess the shear bearing capacity of the core area of this type of joints.</div></div>","PeriodicalId":15557,"journal":{"name":"Journal of Constructional Steel Research","volume":"225 ","pages":"Article 109175"},"PeriodicalIF":4.0,"publicationDate":"2024-11-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142701703","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

Corrosion and mechanical behavior of a new Q450 weathering steel 新型 Q450 耐候钢的腐蚀和机械性能

IF 4 2区工程技术

Journal of Constructional Steel Research Pub Date : 2024-11-25 DOI: 10.1016/j.jcsr.2024.109180

Yaorui Zeng , Chuntao Zhang

{"title":"Corrosion and mechanical behavior of a new Q450 weathering steel","authors":"Yaorui Zeng , Chuntao Zhang","doi":"10.1016/j.jcsr.2024.109180","DOIUrl":"10.1016/j.jcsr.2024.109180","url":null,"abstract":"<div><div>Weather-resistant steel represents a significant advancement in addressing corrosion challenges. Several types of steel with enhanced weather resistance have already been developed and manufactured. Weathering steel has shown excellent anti-corrosion ability over conventional structural steel. However, research on the corrosion and mechanical behavior of this type of steel after corrosion damage is still limited. Therefore, this paper conducts a detailed experimental investigation of the corrosion behavior and tensile strength of a new Q450 weathering steel after an accelerated corrosion test. Several scanning techniques were employed to examine the development of corrosion damage in the new Q450 weathering steels after being subjected to different corrosion times. Vickers hardness and velocity intensity of the corroded specimen were obtained to reveal the corrosion behavior of the Q450 steel. Based on the test data, predictive models were developed to predict the pit size and mechanical properties of Q450 steel after corrosion damage. The results suggest that, as the corrosion time increases, the types and amounts of corrosion products change significantly, which causes the passivation film to become much denser. Meanwhile, the mechanical properties are degraded by the increasing corrosion damage. Ultimately, the proposed predictive models are proven to be accurate and reliable.</div></div>","PeriodicalId":15557,"journal":{"name":"Journal of Constructional Steel Research","volume":"225 ","pages":"Article 109180"},"PeriodicalIF":4.0,"publicationDate":"2024-11-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142701701","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

Seismic design of self-centering rocking core-moment frames with extended displacement-based approach for higher modes 采用基于位移的扩展方法对高模态自定心摇摆核心力矩框架进行抗震设计

IF 4 2区工程技术

Journal of Constructional Steel Research Pub Date : 2024-11-25 DOI: 10.1016/j.jcsr.2024.109179

Nima Rahgozar , Navid Rahgozar

{"title":"Seismic design of self-centering rocking core-moment frames with extended displacement-based approach for higher modes","authors":"Nima Rahgozar , Navid Rahgozar","doi":"10.1016/j.jcsr.2024.109179","DOIUrl":"10.1016/j.jcsr.2024.109179","url":null,"abstract":"<div><div>This paper introduces a novel displacement-based design method specifically tailored for Rocking Core-Moment Frame (RCMF) archetypes. RCMFs integrate the self-centering capabilities of Rocking Cores (RCs) with the energy dissipation capacity of Repairable Moment Frames (RMFs). The proposed design procedure accurately estimates higher-mode demands, which are essential for the capacity design of RCMF members. It emphasizes predicting design forces, by appropriately allocating strength between RMFs and RCs using the cantilever beam analogy. Additionally, a fail-safe mechanism is introduced to the RCMF design, ensuring self-centering at the immediate occupancy level while preventing potential collapse at design level. To validate the proposed approach and analytical formulas, nonlinear dynamic analyses are conducted on RCMFs subjected to far-field ground motions. The procedure concludes with the seismic evaluation of illustrative archetypes, including buildings supported by pinned and stepping cores, with both single and coupled configurations. The outcomes demonstrate the efficiency of the proposed displacement-based design procedure for the rapid analysis and preliminary design of RCMFs.</div></div>","PeriodicalId":15557,"journal":{"name":"Journal of Constructional Steel Research","volume":"225 ","pages":"Article 109179"},"PeriodicalIF":4.0,"publicationDate":"2024-11-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142701687","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

Unified axial compressive bearing capacity model based on Hoek-Brown criterion for concrete filled steel tubular columns with different cross-sectional shapes 基于 Hoek-Brown 准则的不同截面形状混凝土填充钢管柱统一轴向抗压承载力模型

IF 4 2区工程技术

Journal of Constructional Steel Research Pub Date : 2024-11-23 DOI: 10.1016/j.jcsr.2024.109140

Yang Zhang , Ziao Zhou , Qian Li

{"title":"Unified axial compressive bearing capacity model based on Hoek-Brown criterion for concrete filled steel tubular columns with different cross-sectional shapes","authors":"Yang Zhang , Ziao Zhou , Qian Li","doi":"10.1016/j.jcsr.2024.109140","DOIUrl":"10.1016/j.jcsr.2024.109140","url":null,"abstract":"<div><div>As we all know, concrete filled steel tubular columns (CFSTC) have excellent bearing capacity and deformation capacity. Currently, most axial compressive bearing capacity models of CFSTC are empirical models with nonlinear fitting and are suitable for single cross-sectional type and material type, which has obstacles to the calculation of different cross-sectional types and has certain limitations to the application of the models. For this reason, the unified axial compressive bearing capacity model was established based on the Hoek-Brown failure criterion in this paper, considering effective confinement coefficients. The proposed unified model was applied to CFSTC with cross-sections of circle, square, rectangle, and ellipse, considering the slenderness ratio and material type. Finally, the 895 collected test data were used to determine model parameters and evaluate the models established in this paper and the existing models. The evaluation results showed that the model established in this paper can predict the axial compressive bearing capacity of CFSTC with different cross-sectional shapes with high accuracy. The prediction of CFSTC with cross-sections of circle, square, and rectangle had high accuracy, the average value (AV) and integral absolute error (IAE) were 1.008 and 0.095. At the same time, the axial compressive bearing capacity of CFSTC with cross-sections of circle, square, rectangle, and ellipse also can be predicted by the unified model, AV and IAE were 1.008 and 0.096. In a word, the proposed model based on the Hoek-Brown criterion in this paper had superior applicability and accuracy.</div></div>","PeriodicalId":15557,"journal":{"name":"Journal of Constructional Steel Research","volume":"225 ","pages":"Article 109140"},"PeriodicalIF":4.0,"publicationDate":"2024-11-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142701686","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