International Journal of Steel Structures最新文献_第10页

Fatigue Life Prediction of Prefatigued Welded Q235 Steel Butt-Joints Treated by High Frequency Mechanical Impact 经高频机械冲击处理的预疲劳焊接 Q235 钢对接接头的疲劳寿命预测

IF 1.1 4区工程技术

International Journal of Steel Structures Pub Date : 2024-06-24 DOI: 10.1007/s13296-024-00861-4

Tao Li, Chao Zhang, Guotai Huang, Liuyang Feng

引用次数: 0

Experimental Study for Local Buckling of Curved Special-Shaped Pylon 特殊形状弯曲塔架局部屈曲试验研究

IF 1.1 4区工程技术

International Journal of Steel Structures Pub Date : 2024-06-24 DOI: 10.1007/s13296-024-00857-0

Huili Wang, Feng Nie, Weihe Zhao, Dechang Zhang

{"title":"Experimental Study for Local Buckling of Curved Special-Shaped Pylon","authors":"Huili Wang, Feng Nie, Weihe Zhao, Dechang Zhang","doi":"10.1007/s13296-024-00857-0","DOIUrl":"10.1007/s13296-024-00857-0","url":null,"abstract":"<div><p>This paper presents an investigation of the local buckling of curved special-shaped pylons, which are becoming increasingly common in bridge construction. Three kinds of steel plate specimens with different radii of curvature were selected to study the local buckling of curved special-shaped pylons. Both model tests and finite element analyses were conducted. Modal solutions for elastic buckling analysis of the steel plate specimens were obtained using finite element method (FEM). The relationships between load and deformation, and load and strain were determined through testing. The results showed that the sequence of elastic buckling modes from the FEM was consistent with theoretical solutions, and the trends from the test and FEM were generally consistent. It was observed that an increase in curvature led to a decrease in bearing capacity, and the thickness-to-width ratio (t/b) was found to have a greater effect on the reduction factor than the radius-to-width ratio (R/b). Therefore, the thickness of the curved plate was determined to be critical for ultimate strength. The findings from this study offer insights into the behavior of curved special-shaped pylons under load, and provide a basis for their design and construction.</p></div>","PeriodicalId":596,"journal":{"name":"International Journal of Steel Structures","volume":"24 4","pages":"825 - 838"},"PeriodicalIF":1.1,"publicationDate":"2024-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141549215","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Numerical Free Vibration Analysis of Sandwich Beams with a Steel-Ceramic FGM Core and FG-CNTRC Facesheets 带钢陶瓷 FGM 内核和 FG-CNTRC 面板的三明治梁自由振动数值分析

IF 1.1 4区工程技术

International Journal of Steel Structures Pub Date : 2024-06-23 DOI: 10.1007/s13296-024-00858-z

Hyeong Jin Kim, Jin-Rae Cho

{"title":"Numerical Free Vibration Analysis of Sandwich Beams with a Steel-Ceramic FGM Core and FG-CNTRC Facesheets","authors":"Hyeong Jin Kim, Jin-Rae Cho","doi":"10.1007/s13296-024-00858-z","DOIUrl":"10.1007/s13296-024-00858-z","url":null,"abstract":"<div><p>The sandwich beams composed of a functionally graded material (FGM) core and functionally graded carbon nanotube-reinforced composite (FG-CNTRC) facesheets have been rarely studied. In this context, this study intends to profoundly investigate their free vibration characteristics, by introducing an effective and reliable FE analysis model. The FGM core is made of a steel-ceramic material, while the FG-CNTRC facesheets are manufactured with polymer and carbon nanotubes (CNTs). The effective material properties of the FGM core and FG-CNTRC facesheets are estimated using the linear rule of mixture. A FE analysis model is generated by dividing the beam into a finite number of homogenized sub-layers, and its reliability is secured by comparing its results with the reference solutions. The parametric study is conducted to profoundly investigate the effects of various parameters, such as the volume fraction of base materials, CNT distribution, core-to-face-sheet-thickness ratio, length-to-thickness ratio, and the boundary condition. The numerical results are discussed, and the main conclusions are explained.</p></div>","PeriodicalId":596,"journal":{"name":"International Journal of Steel Structures","volume":"24 4","pages":"734 - 742"},"PeriodicalIF":1.1,"publicationDate":"2024-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141549217","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Experimental Research and Numerical Analysis on the Concrete-Filled Square CFRP Steel Tube Column Under Compressive-Shear Loading 抗压抗剪荷载下混凝土填充方形 CFRP 钢管柱的实验研究与数值分析

IF 1.1 4区工程技术

International Journal of Steel Structures Pub Date : 2024-06-22 DOI: 10.1007/s13296-024-00860-5

Kuan Peng, Qing-li Wang, Yong-bo Shao

{"title":"Experimental Research and Numerical Analysis on the Concrete-Filled Square CFRP Steel Tube Column Under Compressive-Shear Loading","authors":"Kuan Peng, Qing-li Wang, Yong-bo Shao","doi":"10.1007/s13296-024-00860-5","DOIUrl":"10.1007/s13296-024-00860-5","url":null,"abstract":"<div><p>A large number of concrete-filled CFRP steel tube structures are widely used in practical engineering at current. Considering that as a column structure, compressive-shear loading is a more important bearing capacity method. 12 specimens are designed to study the comperssive-shear performance of concrete filled CFRP steel tube. The shear loading- displacement (<i>V</i>-<i>Δ</i>) curves and the collaborative work performance between the steel tube and CFRP are tested. Based on the tests, a numerical simulation method is firstly proposed to estimate the compressive-shear performance of concrete-filled CFRP steel tube stub column, and then validated against the representative tests results.Parametric study is conducted to explore the influence of principle factors on compresive-shear behaviour by verified numerical models. The experimental results show that the steel tube and CFRP can work together. As the axial compression ratio increases, the shear displacement of the specimen is constrained, resulting in increase of bearing capacity. Additionally, the increase of steel ratio, CFRP layers and materials strength for specimens enhance not only the bearing capacity but also the initial stiffness. The simulation results of the established finite element model are in good agreement with the experimental results. Finally, Based on experimental and finite element results, the bearing capacity correlation equation for concrete-filled square CFRP steel tublar stub columns when subjected to compressive-shear loading is presented.</p></div>","PeriodicalId":596,"journal":{"name":"International Journal of Steel Structures","volume":"24 4","pages":"813 - 824"},"PeriodicalIF":1.1,"publicationDate":"2024-06-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141549216","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Correction: Numerical Analysis of RC Frame Reinforced by Steel-Plate Concrete Module System 修正：钢筋混凝土框架钢板混凝土模组系统的数值分析

IF 1.1 4区工程技术

International Journal of Steel Structures Pub Date : 2024-06-17 DOI: 10.1007/s13296-024-00853-4

Hyun-Wook Lim, Daehee Jang, Kangmin Lee

引用次数: 0

A Time-Step-Modified Linear Complementarity Approach for Analysing a Simply Supported Steel Beams Subjected to Far-Field Blast Loading 用于分析承受远场爆破荷载的简支钢梁的时间-步骤-修正线性互补法

IF 1.1 4区工程技术

International Journal of Steel Structures Pub Date : 2024-06-15 DOI: 10.1007/s13296-024-00854-3

Moiz Tariq, Azam Khan, Hammad Anis Khan, Iqra Hussain

引用次数: 0

Investigation on Fracture Behavior of Electroslag Welding Joint with High-Performance Steel 高性能钢电渣焊接接头的断裂行为研究

IF 1.1 4区工程技术

International Journal of Steel Structures Pub Date : 2024-06-13 DOI: 10.1007/s13296-024-00855-2

Hongtao Li, Jun Iyama

{"title":"Investigation on Fracture Behavior of Electroslag Welding Joint with High-Performance Steel","authors":"Hongtao Li, Jun Iyama","doi":"10.1007/s13296-024-00855-2","DOIUrl":"10.1007/s13296-024-00855-2","url":null,"abstract":"<div><p>This study aimed to investigate fracture behavior of electroslag welding (ESW) joint with 590-N/mm<sup>2</sup> class steel using numerical analysis, covering a range of material scales in the structural level. The extended Mohr–Coulomb (EMC) fracture criterion was employed for finite element analysis (FEA). Uniaxial tensile test and three-point bending test were conducted to analyze the fracture behavior from the material scale and calibrate the fracture criterion. The test specimens consisted of the base metal, heat-affected-zone metal, and welding metal obtained from an ESW joint with a 590 N/mm<sup>2</sup> class steel. Subsequently, FEA was conducted for a biaxial tensile test to investigate fracture behavior at a structural scale and verify the feasibility and accuracy of the calibrated fracture criterion. The comparison between the results from the FEA and test suggests that the FEA based on the EMC fracture criterion can accurately predict fracture behavior but tends to overestimate the bearing capacity. Thereafter, the effect of axial force on column was quantitatively investigated. The results suggest that the existence of tensile axial force at column decreases the ductility of ESW joint and shifts the fracture locus from the welding metal to heat-affected zone. However, the force has minimal influence on the pop-in load. Finally, the feasibility of applying the current Japanese specifications designated for the 490 N/mm<sup>2</sup> class steel for the 590 N/mm<sup>2</sup> class steel was examined. The results indicate that the provision can serve as a safe and reliable guideline for the 590 N/mm<sup>2</sup> class steel as well.</p></div>","PeriodicalId":596,"journal":{"name":"International Journal of Steel Structures","volume":"24 4","pages":"882 - 891"},"PeriodicalIF":1.1,"publicationDate":"2024-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s13296-024-00855-2.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141347789","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A Data Fusion Method for Small Sample Model Testing and Finite Element Simulation: Taking π-Shaped Beam Column Nodes as an Example 用于小样本模型测试和有限元模拟的数据融合方法：以π形梁柱节点为例

IF 1.1 4区工程技术

International Journal of Steel Structures Pub Date : 2024-06-11 DOI: 10.1007/s13296-024-00856-1

Wei Ding, Suizi Jia

{"title":"A Data Fusion Method for Small Sample Model Testing and Finite Element Simulation: Taking π-Shaped Beam Column Nodes as an Example","authors":"Wei Ding, Suizi Jia","doi":"10.1007/s13296-024-00856-1","DOIUrl":"10.1007/s13296-024-00856-1","url":null,"abstract":"<div><p>The analysis and research of composite structure specimens depend on test methods. However, due to the high cost, complex test conditions, time-consuming, and other problems, it is difficult to carry out a large number of tests. A large amount of data is often required for parametric analysis and structural optimization of composite structure specimens. Therefore, to solve the problem of insufficient data samples in the analysis and research of specimens. In this paper, a finite element model updating method based on Bayesian theory and a Gaussian process data fusion method is proposed, that is, the amount of data is expanded by the proposed model updating method, and then the experimental and numerical simulation data are fused based on the Gaussian process data fusion method. Finally, the effectiveness of the proposed model updating method and data fusion method is verified by a numerical example of π type beam-column joints. The results show that the method has high generalization ability and prediction accuracy in the case of small samples through the fusion of numerical simulation and experimental data.</p></div>","PeriodicalId":596,"journal":{"name":"International Journal of Steel Structures","volume":"24 4","pages":"719 - 733"},"PeriodicalIF":1.1,"publicationDate":"2024-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141356668","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Strength Evaluation of Flush End-Plate Connection Using Triangular Haunch in Pipe Rack 管架中使用三角缺口的齐平端板连接强度评估

IF 1.1 4区工程技术

International Journal of Steel Structures Pub Date : 2024-06-10 DOI: 10.1007/s13296-024-00851-6

Seong-Hun Kang, Jun-Seop Lee, Hwa-In Park, Hee-Du Lee, Kyung-Jae Shin

{"title":"Strength Evaluation of Flush End-Plate Connection Using Triangular Haunch in Pipe Rack","authors":"Seong-Hun Kang, Jun-Seop Lee, Hwa-In Park, Hee-Du Lee, Kyung-Jae Shin","doi":"10.1007/s13296-024-00851-6","DOIUrl":"10.1007/s13296-024-00851-6","url":null,"abstract":"<div><p>In this paper, cyclic tests and finite element analyses were conducted on the flush end-plate connection of a pipe rack, with the haunch shape attached to the bottom of a beam as a variable. The cyclic test results showed that the moment strength of the connection increased by a maximum of 1.82 times depending on the haunch shape. The results of cyclic tests and finite element analyses revealed that with increasing the length of the welded haunch connected to the beam and expanding the area where the haunch contacted the column, the moment strength of the connection increased. Furthermore, a method to calculate the strength of the flush end-plate connection attached to the haunch was described by determining and calculating the theoretical strengths of each part, including the beam, column, haunch region, column flange, panel zone, and end-plate. When the length of the haunch connected to the beam is ensured and strengths of each element are calculated to be considerably higher than the beam strength, the connection can be configured in an ideal form of a strong column–weak beam.</p></div>","PeriodicalId":596,"journal":{"name":"International Journal of Steel Structures","volume":"24 6","pages":"1290 - 1303"},"PeriodicalIF":1.1,"publicationDate":"2024-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141362691","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

CFT Connections: State-of-the-art Report and Numerical Validation by 3D FEM CFT 连接：最新报告和 3D 有限元数值验证

IF 1.1 4区工程技术

International Journal of Steel Structures Pub Date : 2024-06-07 DOI: 10.1007/s13296-024-00852-5

Jose Wilches, Roberto Leon, Hernán Santa Maria, Anibal Graterol

{"title":"CFT Connections: State-of-the-art Report and Numerical Validation by 3D FEM","authors":"Jose Wilches, Roberto Leon, Hernán Santa Maria, Anibal Graterol","doi":"10.1007/s13296-024-00852-5","DOIUrl":"10.1007/s13296-024-00852-5","url":null,"abstract":"<div><p>Connections between concrete filled members are common in tall buildings, bridges, and offshore structures because of their robust structural performance. While extensive research has been done on isolated concrete-filled structural members, relatively little research has been conducted on composite connection regions. This article first describes a database on experimental/analytical investigations on concrete-filled connections comprising 135 tests. It then develops a generic numerical model capable of capturing the entire range of behavior of these connections, including local buckling of the steel tubes and friction/contact resistance between steel and concrete. The model was calibrated against a single test and its performance was verified against three other very different tests. The results indicate that the four models can track well the strength and stiffness of the specimens up to ultimate and predict well different failure patterns. Comparisons of the experimental and numerical load-deformation curves show very good agreement in predicting the strength and deformations at which different behaviors arise, and that performance is controlled primarily by both the strength of the concrete and the confinement effect of the steel tube in the connection area.</p></div>","PeriodicalId":596,"journal":{"name":"International Journal of Steel Structures","volume":"24 4","pages":"892 - 907"},"PeriodicalIF":1.1,"publicationDate":"2024-06-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s13296-024-00852-5.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141371172","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0