International Journal of Steel Structures最新文献_第9页

A Framework for Reliability Assessment and Calibration of Existing Structural Steel Design Codes 现有钢结构设计规范的可靠性评估与标定框架

IF 1.4 4区工程技术

International Journal of Steel Structures Pub Date : 2026-01-19 DOI: 10.1007/s13296-025-01018-7

Arman Kakaie, Mohammad-Rashid Salimi, Azad Yazdani

{"title":"A Framework for Reliability Assessment and Calibration of Existing Structural Steel Design Codes","authors":"Arman Kakaie, Mohammad-Rashid Salimi, Azad Yazdani","doi":"10.1007/s13296-025-01018-7","DOIUrl":"10.1007/s13296-025-01018-7","url":null,"abstract":"<div>\u0000 \u0000 <p>In this paper, a probabilistic framework is proposed to estimate the reliability level of existing structural steel design codes, identify the underperforming safety cases and calibrate partial safety factors. The approach simulates various design scenarios and estimates the reliability index for each using simplified equations. This allows for the analysis of numerous random structural components under different load combinations. The framework identifies critical load combinations from a reliability perspective and pinpoints key factors contributing to reduced safety levels. Load and resistance factors are then recalibrated within these critical combinations to achieve the required safety standards. The method is applied to the National Building Code of Iran, which directly adopts load and resistance factors from North American standards ASCE/SEI 7 and AISC-360, to assess its reliability and recalibrate partial safety factors based on local uncertainties and statistical parameters of resistance and loads. The proposed methodology is simple and straightforward, making it easily applicable to other international and national structural steel design codes.</p>\u0000 </div>","PeriodicalId":596,"journal":{"name":"International Journal of Steel Structures","volume":"26 1","pages":"57 - 71"},"PeriodicalIF":1.4,"publicationDate":"2026-01-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147340638","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

Analytical Study of Inserted Steel Plate Shear Wall for Modular Core System 模块化核心体系插入式钢板剪力墙分析研究

IF 1.4 4区工程技术

International Journal of Steel Structures Pub Date : 2025-12-29 DOI: 10.1007/s13296-025-01013-y

Daehee Jang, Kangmin Lee, Jisu Park, Byungwoo Lee

{"title":"Analytical Study of Inserted Steel Plate Shear Wall for Modular Core System","authors":"Daehee Jang, Kangmin Lee, Jisu Park, Byungwoo Lee","doi":"10.1007/s13296-025-01013-y","DOIUrl":"10.1007/s13296-025-01013-y","url":null,"abstract":"<div><p>This study proposes an inserted steel plate shear wall (I-SPSW) to improve the constructability of modular cores and preliminarily evaluates its structural performance through finite element analysis (FEA) before experimental testing. The proposed system enhances constructability by using H-shaped columns and two C-shaped steel beams, with steel plates inserted between the beams and fastened by bolts. The FEA under cyclic loading was performed on a 1/3-scale, single-span, two-story structure, with variations in aspect ratio, steel plate thickness, and boundary frame–steel plate connection. The results indicate that increasing the aspect ratio slightly improves initial stiffness, strength, and ductility but also increases bending demands and stress concentrations in the boundary frame. Increasing the steel plate thickness enhances stiffness and strength but reduces ductility, introducing excessive deformation and a risk of buckling in the boundary frame. The boundary frame–steel plate connection configuration significantly influenced structural behavior. When the column and steel plate were not connected, stiffness decreased, but stress concentration in the column was mitigated. Partial connections between the steel plate and the boundary frame reduced maximum lateral strength. When the steel plate size was reduced and connected to only part of the beams, the structural response was similar to that of the boundary frame alone, indicating a negligible contribution from the steel plate. Overall, the analysis demonstrates that the I-SPSW exhibits both high structural performance and improved constructability. However, full-scale experiments are required to accurately evaluate the structural performance of the I-SPSW system.</p></div>","PeriodicalId":596,"journal":{"name":"International Journal of Steel Structures","volume":"26 1","pages":"17 - 30"},"PeriodicalIF":1.4,"publicationDate":"2025-12-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147342857","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

An Algebraic Iterative Algorithm for Determining the Equilibrium State of the Completed Suspension Bridge Based on Explicit Calculation of Reasonable Hanger Forces 基于合理吊架力显式计算的已完工悬索桥平衡状态的代数迭代确定算法

IF 1.4 4区工程技术

International Journal of Steel Structures Pub Date : 2025-12-29 DOI: 10.1007/s13296-025-01012-z

Weihua Zhu, Lian Huang, Zhuangpeng Yi, Donghuang Yan, Guoping Huang

{"title":"An Algebraic Iterative Algorithm for Determining the Equilibrium State of the Completed Suspension Bridge Based on Explicit Calculation of Reasonable Hanger Forces","authors":"Weihua Zhu, Lian Huang, Zhuangpeng Yi, Donghuang Yan, Guoping Huang","doi":"10.1007/s13296-025-01012-z","DOIUrl":"10.1007/s13296-025-01012-z","url":null,"abstract":"<div><p>To overcome the limitations of conventional methods in determining suspension bridge equilibrium states, particularly computational complexity and suboptimal hanger forces distribution, this study proposes a novel Explicit Iterative Algorithm Method (EIAM) for rational determination of hanger forces. This method involves the following key steps: (1) development of influence coefficients through bending moment differential equations for analyzing the stiffening girder configuration; (2) establishment of a cable profile-bending moment analogy of a simply supported beam to derive suspension point configurations under a unit concentrated load; (3) formulation of a composite calculation matrix for the completed bridge cable force, which linearly superimposes the influence coefficients for the stiffening girder configuration and those corresponding to concentrated loads on the main cable; and (4) through linear algebraic solutions and iterative tangent stiffness matrix optimization based on elastic catenary theory, the method achieves precise equilibrium state determination. Finally, a case study of a kilometer-scale suspension bridge compared EIAM with the finite element method (FEM) and the rigidly supported continuous beam method (SCBM). The results show that EIAM offers higher accuracy and reliability, aligning closely with FEM, providing more uniform hanger forces than SCBM, ensuring precise main cable alignment at mid-span, and reducing variations in the tower region due to hanger force differences. Overall, EIAM offers better reliability, uniform hanger forces, control in the tower regions, and consistent cable alignment, highlighting its value in optimizing suspension bridge design while balancing efficiency and safety.</p></div>","PeriodicalId":596,"journal":{"name":"International Journal of Steel Structures","volume":"26 1","pages":"1 - 16"},"PeriodicalIF":1.4,"publicationDate":"2025-12-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147342838","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

Incorporating New Generation Cold-Formed High-Strength Steel (CFHSS) to the Conformity of Present Product Standards 新一代冷弯高强度钢（CFHSS）符合现行产品标准

IF 1.4 4区工程技术

International Journal of Steel Structures Pub Date : 2025-12-08 DOI: 10.1007/s13296-025-01009-8

Cher Siang Tan, Philip Chie Hui Ling, Jian Jun Moy

{"title":"Incorporating New Generation Cold-Formed High-Strength Steel (CFHSS) to the Conformity of Present Product Standards","authors":"Cher Siang Tan, Philip Chie Hui Ling, Jian Jun Moy","doi":"10.1007/s13296-025-01009-8","DOIUrl":"10.1007/s13296-025-01009-8","url":null,"abstract":"<div><p>Cold-formed high-strength steel (CFHSS) has been gaining popularity in the construction industry due to its high strength-to-weight ratio. CFHSS is produced with a nominal yield strength of 460 MPa and above, in compliance with the national steel product standard, to assure safety, durability, and quality in use in construction. However, owing to the rapid global production of steel products, a wide range of steel products from different countries, described as ‘foreign steel’, have been shipped worldwide. These steel products have created an imbalance between design guidelines and product standards that differ by country, resulting in unpredictable construction outcomes. The Eurocode 3 and American Standard AISI S100 design codes of practice authorise the use of steel that fulfils the product standards for mechanical and chemical properties, as verified by testing procedure. However, existing steel product standards from Europe, America, Australia, Japan, and Malaysia only deal with steel with a tensile strength of up to 550 MPa. Hence, alternative approach to employ higher grades CFHSS in structural steel design was addressed.</p></div>","PeriodicalId":596,"journal":{"name":"International Journal of Steel Structures","volume":"25 6","pages":"1304 - 1314"},"PeriodicalIF":1.4,"publicationDate":"2025-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s13296-025-01009-8.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145802404","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

Effect of Deoxidation Practice on the Mechanical Properties of Low Alloy Plain Carbon Steel 脱氧工艺对低合金普通碳钢力学性能的影响

IF 1.4 4区工程技术

International Journal of Steel Structures Pub Date : 2025-11-25 DOI: 10.1007/s13296-025-01010-1

Sujith Bobba, Z. Leman

{"title":"Effect of Deoxidation Practice on the Mechanical Properties of Low Alloy Plain Carbon Steel","authors":"Sujith Bobba, Z. Leman","doi":"10.1007/s13296-025-01010-1","DOIUrl":"10.1007/s13296-025-01010-1","url":null,"abstract":"<div><p>The current research work insights the form and distribution of the sulphide inclusions in the steels. The deoxidation practice to the steels alter, the form and the distribution of the sulphide inclusions. In this present study, the effect of deoxidation practice on properties of low alloy and plain carbon steels done using, Aluminum (0.5–2.0 kg/T) and calcium silicide (0.5–2.5 kg/T) as deoxidants, and the comparative study of arc furnace and induction furnace is done. Ca–Si was added along with Al at the bottom of the ladle for the melt of arc furnace, whereas Al and Ca–Si were added separately to the ladle, for the induction furnace melt. The mechanism for the formation and the morphology of non-metallic inclusions were analyzed by determining the oxygen content and microstructure. From the microstructural analysis it has found that aluminium of size 40 μm in diameter produced elongated inclusions which may act as stress concentrators for originating cracks, where calcium–silicide form oxysulphides of spheroidal shape when added with 1.5 kg calcium silicide per ton of steel, which resulted in the rise in the ductility and impact properties.</p></div>","PeriodicalId":596,"journal":{"name":"International Journal of Steel Structures","volume":"25 6","pages":"1271 - 1279"},"PeriodicalIF":1.4,"publicationDate":"2025-11-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145802399","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 Study on the Effect of Multi-Compartment Spreading Fire Scenarios on the Fire Resistance of 3D Steel-Framed Structures 多室蔓延火灾场景对三维钢框架结构耐火性能影响的数值研究

IF 1.4 4区工程技术

International Journal of Steel Structures Pub Date : 2025-11-23 DOI: 10.1007/s13296-025-01004-z

Shipeng Ruan, Jincheng Zhao, Liping Duan, Zhensen Song, Jie Ge

{"title":"Numerical Study on the Effect of Multi-Compartment Spreading Fire Scenarios on the Fire Resistance of 3D Steel-Framed Structures","authors":"Shipeng Ruan, Jincheng Zhao, Liping Duan, Zhensen Song, Jie Ge","doi":"10.1007/s13296-025-01004-z","DOIUrl":"10.1007/s13296-025-01004-z","url":null,"abstract":"<div><p>Fire spreading across compartments or floors have been observed in realistic fires. However, structural responses in multi-compartment spreading fires are still not very clear. Unlike traditional studies focused on isolated compartment fires or uniform heating, this research simulates dynamic fire spread across compartments and evaluates the resulting structural behavior. A validated finite element model based on the full-scale travelling fire experiments was firstly developed using LS-DYNA. The effects of fire curve characteristics (short-hot, mid, long-cool), fire-source compartment location (corner, edge, center), and fire spread timing (simultaneous, delayed) were then systematically studied. Results show that early fire spread led to structural collapse within 160 min, while delayed fire spread extended structural stability beyond 600 min. Long-cool fires induced failure during the cooling phase, particularly in highly loaded central columns such as B2, which yielded at 153 min. Short-span beams formed catenary mechanisms with axial forces exceeding 2000 kN, while redistribution in adjacent columns amplified axial forces up to 2.4 times. This study provides quantified insights into internal force transfer, failure sequences, and collapse propagation under realistic fire conditions. By incorporating spatial–temporal fire dynamics in 3D, the proposed framework offers a significant advancement over prior work based on static, single-compartment scenarios, thereby informing robust performance-based fire design strategies.</p></div>","PeriodicalId":596,"journal":{"name":"International Journal of Steel Structures","volume":"25 6","pages":"1209 - 1223"},"PeriodicalIF":1.4,"publicationDate":"2025-11-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145802405","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

Investigation of Hydrogen Embrittlement in Various Silicon Steels 各种硅钢氢脆的研究

IF 1.4 4区工程技术

International Journal of Steel Structures Pub Date : 2025-11-23 DOI: 10.1007/s13296-025-01007-w

Tomoya Ueki, Mitsuhiro Okayasu

{"title":"Investigation of Hydrogen Embrittlement in Various Silicon Steels","authors":"Tomoya Ueki, Mitsuhiro Okayasu","doi":"10.1007/s13296-025-01007-w","DOIUrl":"10.1007/s13296-025-01007-w","url":null,"abstract":"<div><p>This study examines the hydrogen embrittlement (HE) behavior of silicon steels with different microstructures and internal strains, processed through various heating treatments. Cold-rolled (CR) and annealed (AN) samples exhibited a ferritic phase, while water-quenched (WQ) and bake-hardened (BH) samples displayed a martensitic structure. CR samples had high strain from plastic deformation, whereas WQ and BH showed moderate strain from martensitic transformation. Hardness and ultimate tensile strength (UTS) increased with silicon content, with WQ and BH exhibiting the highest values and AN showing the lowest UTS but highest ductility. Hydrogen charging reduced UTS and significantly decreased fracture strain in CR, while WQ and BH experienced moderate reductions. AN samples remained unaffected. HE susceptibility correlated with diffusible hydrogen content, which was highest in CR and lowest in AN. After hydrogen charging, CR samples exhibited brittle fracture, WQ and BH showed mixed failure modes, and AN retained ductile failure. High silicon content effectively reduced HE, emphasizing its importance in developing HE-resistant silicon steels.</p></div>","PeriodicalId":596,"journal":{"name":"International Journal of Steel Structures","volume":"25 6","pages":"1260 - 1270"},"PeriodicalIF":1.4,"publicationDate":"2025-11-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145802403","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

Buckling Effective Length Factor of Columns in Fast-Disassembling Recycle-Use Steel Container Modular Houses 快速拆解循环使用钢集装箱组合式房屋柱的屈曲有效长度系数

IF 1.4 4区工程技术

International Journal of Steel Structures Pub Date : 2025-11-16 DOI: 10.1007/s13296-025-01008-9

He Zhang, Zi Wang, Kun Wang, Zhongqi Wu, Ruyi Wang, Jiachao Liu

{"title":"Buckling Effective Length Factor of Columns in Fast-Disassembling Recycle-Use Steel Container Modular Houses","authors":"He Zhang, Zi Wang, Kun Wang, Zhongqi Wu, Ruyi Wang, Jiachao Liu","doi":"10.1007/s13296-025-01008-9","DOIUrl":"10.1007/s13296-025-01008-9","url":null,"abstract":"<div><p>To serve important construction projects and scientific explorations in inaccessible areas, the fast-disassembling recycle-use steel container modular house has been proposed. It is a kind of particular frame or braced frame in which beams and columns are connected to corner joints. Connections between columns and corner joints are mostly partially rigid. Sometimes, connections between beams and corner joints are also partially rigid. To provide a calculation method for the buckling effective length factor of columns in container modular houses, 37469 column models have been analyzed. It can be observed that the buckling effective length factor of columns in container modular houses can be calculated by equations of sidesway uninhibited frame column or sidesway inhibited frame that considers the flexural stiffness released of column ends if corner-joints are rigid. Impacts of stiffness of corner-joint are simplified. The corner-joint’s stiffness requirements are found if the corner-joint can be treated as rigid. Furthermore, an equivalent beam stiffness is proposed when beam ends are partially connected with corner-joints.</p></div>","PeriodicalId":596,"journal":{"name":"International Journal of Steel Structures","volume":"25 6","pages":"1245 - 1259"},"PeriodicalIF":1.4,"publicationDate":"2025-11-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145802402","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

Real-Time Strain Field Prediction of Steel Cross Girder Based on Proper Orthogonal Decomposition (POD) and CNN-LSTM 基于固有正交分解（POD）和CNN-LSTM的钢横梁应变场实时预测

IF 1.4 4区工程技术

International Journal of Steel Structures Pub Date : 2025-11-16 DOI: 10.1007/s13296-025-01006-x

Jiabin Zhang, Zhipeng Deng, Zhenqian Xie, Yingfei Dong, Yuanchun Li

{"title":"Real-Time Strain Field Prediction of Steel Cross Girder Based on Proper Orthogonal Decomposition (POD) and CNN-LSTM","authors":"Jiabin Zhang, Zhipeng Deng, Zhenqian Xie, Yingfei Dong, Yuanchun Li","doi":"10.1007/s13296-025-01006-x","DOIUrl":"10.1007/s13296-025-01006-x","url":null,"abstract":"<div><p>To achieve high-accuracy and efficient reconstruction of the internal stress field in steel box girders using limited measurement point data, this study proposes an innovative approach. The method integrates Proper Orthogonal Decomposition (POD) with a CNN-LSTM neural network. The methodology involves two key computational phases. First, strain data from finite element simulations undergo POD. This extracts strain basis functions and the corresponding modal weights <span>(q_{n})</span>, transforming the reconstruction into a linear superposition problem. Next, the CNN-LSTM network establishes a mapping between Mises strain data and <span>(q_{n})</span> at selected measurement points. Modal corrections to the finite element model use measured modal data, enhancing overall system accuracy. Static loading test results show that the CNN-LSTM network has superior convergence and prediction accuracy. The mean values for both MAC and PCC between predicted and theoretical values are 0.85. These findings suggest the proposed method can serve as a lightweight, real-time prediction module for stress–strain field analysis in bridge health monitoring systems.</p></div>","PeriodicalId":596,"journal":{"name":"International Journal of Steel Structures","volume":"25 6","pages":"1233 - 1244"},"PeriodicalIF":1.4,"publicationDate":"2025-11-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145802401","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

On the In-Plane Buckling Safety of Network Arches 网拱面内屈曲安全性研究

IF 1.4 4区工程技术

International Journal of Steel Structures Pub Date : 2025-11-05 DOI: 10.1007/s13296-025-01005-y

Frank Schanack, Óscar Ramón Ramos, Juan Patricio Reyes

引用次数: 0