Article
Engineering, Civil
Junbo Chen, Tak-Ming Chan
Summary: This paper presents an experimental investigation into the compressive behaviour of compact to slender octagonal concrete-filled steel tubular (OctCFST) stub columns. The study demonstrates that the circumcircle method and Chinese standard GB 50936-2014 approach are suitable for predicting cross-sectional strength of OctCFSTs, with recommendations for design advancements.
THIN-WALLED STRUCTURES
(2021)
Article
Construction & Building Technology
Song Xia, Xinyi Wei, Chang He, Faxing Ding, Weizhen Zhang, Jiaye Wu, Sen Yang
Summary: This study investigates the effects of stirrup ratio and connection type of stirrups on the axial compression performance of stirrup-confined CFST stub columns through experiments and numerical modeling. The results show that stirrups significantly improve the axial compressive bearing capacity and ductility of CFST stub columns, with welded stirrups having a more pronounced impact.
CASE STUDIES IN CONSTRUCTION MATERIALS
(2022)
Article
Engineering, Civil
Yudong Ma, Kaize Ma, Xiao Han, Tian Yao
Summary: In this study, the axial compressive properties of FRP-confined HSCFST stub columns were investigated, and the effects of steel tube thickness, FRP type, concrete strength, and number of FRP layers were analyzed. The results showed that increasing the concrete strength, steel tube thickness, and number of FRP layers effectively improved the ultimate strength of the stub columns. GFRP showed a more significant effect on improving the ultimate strength and delaying the stiffness degeneration compared to CFRP. A finite element model was established to accurately simulate the axial compressive behavior of FRP-confined HSCFST stub columns and a calculation method for the peak strain and ultimate strength was developed.
ENGINEERING STRUCTURES
(2023)
Article
Engineering, Civil
Peng Feng, Zhiyuan Li, Yichong Zou, Jia-Qi Yang
Summary: A novel hybrid column, HSSS-CCFST, was proposed to address the low ductility and strength of rectangular/square CFST columns. Through experimental tests, the mechanical behavior and failure modes of CCFFT columns were compared with those of SCFC and CFST columns. The 3D laser scanning and finite element analysis were conducted to obtain deformation modes and validate the results. The influence of strength and dimension parameters on the axial load capacity of CCFST was determined through parametric analysis.
THIN-WALLED STRUCTURES
(2023)
Article
Construction & Building Technology
Zhenzhen Liu, Yiyan Lu, Na Li, Shuai Zong
Summary: This study investigates the axial behavior of slender self-stressing concrete-filled steel tube (SCFST) with initial self-stress using both experimental and computational simulation methods. The results show that the initial self-stress improves the axial strength but reduces the deformability of slender SCFST columns. The benefits of self-stress decrease as the length-to-diameter ratio increases.
JOURNAL OF BUILDING ENGINEERING
(2022)
Article
Engineering, Civil
Xuhong Zhou, Tianxiang Xu, Jiepeng Liu, Xuanding Wang, Y. Frank Chen
Summary: An improved type of CECCs for circular CFST piers is proposed in this paper, and its seismic performance is experimentally investigated. The results show that the proposed CECCs have good energy dissipation capacity and load-bearing capacity.
ENGINEERING STRUCTURES
(2022)
Article
Construction & Building Technology
Minas E. Lemonis, Angeliki G. Daramara, Alexandra G. Georgiadou, Vassilis G. Siorikis, Konstantinos Daniel Tsavdaridis, Panagiotis G. Asteris
Summary: This paper presents a model for predicting the ultimate axial compressive capacity of square and rectangular Concrete Filled Steel Tubes based on an Artificial Neural Network. The model is trained and tested using an experimental database, and compared with existing methodologies from design codes and literature. The proposed model shows improved predictions of the ultimate axial load.
STEEL AND COMPOSITE STRUCTURES
(2022)
Article
Construction & Building Technology
Jingcai Zhang, Yong Ding, Xinchun Guan, Jinping Ou
Summary: A new prefabricated seismic isolation system called FPB-CFST was proposed to enhance the mechanical performance and speed up the construction process of the isolation layer. Unlike traditional FPB-Pier systems, the CFST was used as the main support structure, with a spherical curvature surface (SCS) attached to allow sliding of the superstructure. A construction procedure for the FPB-CFST was proposed and various FPB-CFST specimens with different SCS radii were fabricated. Experimental investigations were conducted on the axial local compressive and compressive shear behaviors of the FPB-CFST. Friction coefficient tests and evaluations on the effects of sliding velocity and equivalent pressure were also performed.
JOURNAL OF BUILDING ENGINEERING
(2023)
Article
Construction & Building Technology
Zhiheng Deng, Jianhua Guo, Junjie Yu, Bing Liu
Summary: The study proposed the combination of concrete and aluminium tube for island construction to improve strength, stiffness, and ductility performance. Results showed that increasing the aluminium ratio can enhance the strength index and stiffness index, while the effect of concrete strength on these performance is less significant. Additionally, the ductility index and composite action are closely correlated to the confinement factor.
CASE STUDIES IN CONSTRUCTION MATERIALS
(2021)
Article
Mechanics
Jun-Jie Zeng, Sheng-Da Liang, Yong-Long Li, Yong-Chang Guo, Guo-Yi Shan
Summary: The study proposes the use of FRP jackets to strengthen ECFST columns, with experimental results showing that increasing FRP thickness enhances the elastic stiffness and ultimate axial load of the columns; the performance of FCECFST columns is significantly better than conventional ECFST columns. A new model for ultimate axial stress and strain is introduced, with verification demonstrating its accuracy.
COMPOSITE STRUCTURES
(2021)
Article
Chemistry, Physical
Tong Zhang, Qianxin Wen, Lei Gao, Qian Xu, Jupeng Tang
Summary: This study investigates the hysteretic behavior of CFST stub columns subjected to sulfate corrosion and freeze-thaw cycles through numerical analysis. The yield strength of steel and the steel ratio have a positive effect on the hysteretic behavior, while the compressive strength of concrete and alternation time significantly decrease the unloading stiffness. The ultimate horizontal load increases with the increasing steel ratio, yield strength of steel, and compressive strength of concrete.
Article
Construction & Building Technology
Peng Dai, Lu Yang, Jie Wang, Keyang Ning, Yi Gang
Summary: Concrete-filled square stainless steel tubes (CFSSST) have great potential in constructional applications due to their large flexural stiffness, high corrosion resistance, and low maintenance cost. This paper presents a comprehensive experimental and numerical study on CFSSST stub columns, investigating their ultimate capacities and comparing results with design guides. The study suggests improved calculation methods that provide more accurate estimations of the ultimate resistances of CFSSST stub columns, validated by comparison with test results.
STEEL AND COMPOSITE STRUCTURES
(2022)
Article
Engineering, Civil
Tianxiang Xu, Sumei Zhang, Jiepeng Liu, Xuanding Wang
Summary: This paper introduces four novel types of column-foundation connections and discusses the design methods and applications. Experimental studies and the development of finite element models provide the basis for the proposed design methods.
ENGINEERING STRUCTURES
(2021)
Article
Engineering, Civil
Ji-nan Ding, Qingxin Ren, Qinghe Wang, Jiahuan Yu, Yongjin Li
Summary: This paper investigates the axial compressive performance of the concrete-encased concrete-filled double-skin steel tube (CECFDST) column. The study analyzes the confinement effects of the CECFDST using characteristic stirrup value and nominal confinement factor as primary variables. The results show that the combined confinement effects significantly impact the behavior and ultimate strength of the CECFDST. A finite element model is established and validated, and a parametric analysis is conducted to explore the influential factors related to confinement effects. The paper proposes a simplified design method based on the superposition principle to predict the ultimate strength of the CECFDST.
ENGINEERING STRUCTURES
(2023)
Article
Engineering, Civil
C. N. Xiong, Y. B. Shao, L. W. Tong, K. S. Dai, Y. X. Luo
Summary: This study investigated the efficiency of carbon fiber reinforced polymer (CFRP) in strengthening preloaded circular concrete-filled steel tube (CFST) stub columns. Thirteen specimens were tested and analyzed to determine the failure mechanism and static strengths. The results showed that preloading had a certain effect on the yield strength, but negligible effect on the ultimate strength. Increasing the number of CFRP layers effectively improved the strengths of the preloaded CFST specimens.
THIN-WALLED STRUCTURES
(2023)
Article
Engineering, Marine
Fa-Cheng Wang, Lin-Hai Han
Article
Engineering, Civil
Kan Zhou, Lin-Hai Han
ENGINEERING STRUCTURES
(2019)
Article
Construction & Building Technology
Dan-Yang Ma, Lin-Hai Han, Xiao-Ling Zhao
JOURNAL OF CONSTRUCTIONAL STEEL RESEARCH
(2019)
Article
Construction & Building Technology
Wei Li, Tao Wang, Lin-Hai Han
JOURNAL OF CONSTRUCTIONAL STEEL RESEARCH
(2019)
Article
Engineering, Civil
You-Xing Hua, Lin-Hai Han, Qing-Li Wang, Chao Hou
THIN-WALLED STRUCTURES
(2019)
Article
Construction & Building Technology
Dengyiding Jin, Chao Hou, Luming Shen, Lin-Hai Han
JOURNAL OF CONSTRUCTIONAL STEEL RESEARCH
(2019)
Article
Construction & Building Technology
Dongxu Li, Zhichao Huang, Brian Uy, Huu-Tai Thai, Chao Hou
JOURNAL OF CONSTRUCTIONAL STEEL RESEARCH
(2019)
Article
Construction & Building Technology
You-Fu Yang, Xue-Meng Bie, Chao Hou, Lin-Hai Han
JOURNAL OF CONSTRUCTIONAL STEEL RESEARCH
(2019)
Article
Construction & Building Technology
Xin Nie, Wei Wang, Yu-Hang Wang, Jie Yu, Chao Hou
JOURNAL OF CONSTRUCTIONAL STEEL RESEARCH
(2019)
Article
Engineering, Civil
Liang Bai, Yilin Li, Chao Hou, Tianhua Zhou, Mingwei Cao
ENGINEERING STRUCTURES
(2020)
Article
Mechanics
Yu-Hang Wang, Yu-Yan Wang, Chao Hou, Xu-Hong Zhou, Ran Deng, Yong-Sen Lan, Wei Luo, Wei-Bo Kong
COMPOSITE STRUCTURES
(2020)
Article
Construction & Building Technology
Silin Chen, Chao Hou, Hao Zhang, Lin-Hai Han, Ting-Min Mu
JOURNAL OF CONSTRUCTIONAL STEEL RESEARCH
(2020)
Article
Construction & Building Technology
Lin-Hai Han, Chao Hou, You-Xing Hua
JOURNAL OF CONSTRUCTIONAL STEEL RESEARCH
(2020)
Article
Construction & Building Technology
Gen Li, Chao Hou, Lin-Hai Han, Luming Shen
STEEL AND COMPOSITE STRUCTURES
(2020)
Article
Construction & Building Technology
Yisu Chen, Chao Hou, Jiahao Peng
STEEL AND COMPOSITE STRUCTURES
(2019)
Article
Construction & Building Technology
Jingzhe Li, Qihan Shen, Jingfeng Wang, Fengqin Wang, Guoqiang Li
Summary: This study investigates the effectiveness of externally bonding carbon-FRP for strengthening concrete-filled steel tube short columns with void defects. It proposes strength prediction formulas and provides insights into the strengthening mechanisms.
JOURNAL OF CONSTRUCTIONAL STEEL RESEARCH
(2024)
Article
Construction & Building Technology
Tianyao Liu, Xudong Qian, Wei Wang, Yiyi Chen
Summary: This article translates the ductile tearing process of welded joints made from circular hollow sections into the load resistance and strain levels, providing an interface between fracture-mechanics based assessments and engineering analysis and monitoring.
JOURNAL OF CONSTRUCTIONAL STEEL RESEARCH
(2024)
Review
Construction & Building Technology
Zhen Zhu, Yuliang Chen, Huiqin Wu, Peihuan Ye
Summary: This study investigated the shear capacity of solid-web H-shaped steel reinforced concrete (HSRC) columns under combined torque. Seven HSRC columns were tested, and the influence of different parameters on the shear capacity was analyzed. The results showed that the addition of H-shaped steel improved the shear capacity, while increasing the axial compression ratio increased the shear capacity. However, increasing the torsion bend ratio and shear span ratio decreased the shear capacity.
JOURNAL OF CONSTRUCTIONAL STEEL RESEARCH
(2024)
Article
Construction & Building Technology
Naizhou Zhang, Huatian Zhao, Lianjin Bao, Feng Zhou, Xiaoming Chen, Sheng Jiang, Gang Shi
Summary: This study focuses on the mechanical properties of butt welds in thick GJ steel plates and analyzes the differences between the weld specimens and the base metals in terms of static and cyclic mechanical properties.
JOURNAL OF CONSTRUCTIONAL STEEL RESEARCH
(2024)
Article
Construction & Building Technology
Xianzhong Zhao, Zhenyu Xu, Shen Yan
Summary: This study aims to reveal the mechanisms that determine the survival of suspended domes when subjected to sudden cable rupture. The results show that the remaining structure can arrest the initial local damage and establish an alternative path for hoop cables, thereby regaining balance. The relaxation of hoop cables can transmit outwards and inwards, causing severe damage and potential structural collapse. The failure of diagonal cables has minimal impact on the structure.
JOURNAL OF CONSTRUCTIONAL STEEL RESEARCH
(2024)
Article
Construction & Building Technology
Kathleen Lauwens, Barbara Rossi
Summary: This paper presents an experimental program that tests the behavior of fabricated stainless steel beams under combined bending and torsion. The test results are compared to elastic theory and highlight the overly conservative nature of current design rules.
JOURNAL OF CONSTRUCTIONAL STEEL RESEARCH
(2024)
Article
Construction & Building Technology
Sima Abolghasemi, Nicholas E. Wierschem, Mark D. Denavit
Summary: Structures susceptible to soft story mechanisms are particularly vulnerable to earthquakes. The strongback has been proposed as a way to prevent soft story mechanisms, but its impact on structural performance considering vertical stiffness irregularities and different arrangements of energy dissipation devices is unclear. This study investigates the effects of strongback on a small-scale four-story elastic structure with varying stiffness irregularities and damper arrangements. The results show that the strongback significantly reduces maximum story drift and makes the structural performance insensitive to damper position and distribution.
JOURNAL OF CONSTRUCTIONAL STEEL RESEARCH
(2024)
Article
Construction & Building Technology
Tran-Van Han, Jeong MoonSook, YongNam Kim, Dongkyu Lee, Nguyen-Vu Luat, Kihak Lee
Summary: This paper presents a new approach for steel modular structures, incorporating the S-CN connector and rectangular hollow section (RHS) steel members. The mechanical behavior of S-CN connectors and their application in beam-column connections under compressive loading are studied numerically and validated experimentally.
JOURNAL OF CONSTRUCTIONAL STEEL RESEARCH
(2024)
Article
Construction & Building Technology
Yong-li Tao, Xue-chun Liu, Xuesen Chen, Wen -bin Cui, Long-xin Guo
Summary: In this study, different weld details were proposed to improve the seismic performance of steel column splicing flange joints. Four full-scale specimens were tested under cyclic loads to analyze the hysteresis behaviors, yield moment, ductility, bolt forces, energy dissipation, stress and strains. Parametric analysis was conducted to discuss the influences of weld details, weld geometries, and flange openings. The results showed that different weld details had advantages in terms of ductility or energy dissipation capacity, bolt tension distribution, stress or strain distributions. Formulas for yield moments were proposed and validated for seismic design of bolted flange joints in prefabricated steel structures.
JOURNAL OF CONSTRUCTIONAL STEEL RESEARCH
(2024)
Article
Construction & Building Technology
Wanqian Wang, Jingfeng Wang, Xiao Peng, Lei Guo
Summary: This paper investigates the overall response of the lightweight EPS-filled cold-formed steel (CFS) shear wall structure to earthquake disasters. A simplified analysis model is established using a strut and tie-equivalent spring model. Nonlinear analysis is conducted to assess the seismic resilience of this type of residence. The research findings provide important guidance for the nonlinear analysis and seismic resilience assessment of this kind of building.
JOURNAL OF CONSTRUCTIONAL STEEL RESEARCH
(2024)
Article
Construction & Building Technology
Hui Zhao, Zhenhe Wang, Wenhao Zhang, Rui Wang, Dongdong Yang, Dennis Lam
Summary: In this study, the post-fire performance of round-ended recycled aggregate concrete-filled steel tubular (RE-RACFST) short columns was investigated through experiments and numerical simulations. The results showed that an increase in the recycled aggregate content led to a decrease in the bearing capacity and elastic stiffness of the RE-RACFSTs, as well as an earlier onset of the confining effect. Finite element models were also established and used to study the effects of key factors on the residual load-carrying capacity. Furthermore, a simplified formula was proposed to estimate the post-fire residual capacity of RERACFST stub columns.
JOURNAL OF CONSTRUCTIONAL STEEL RESEARCH
(2024)
Article
Construction & Building Technology
Chengjun Tan, Tao Sun, Hua Zhao, Lei Tu, Dongqin Qiao, Xudong Shao
Summary: By combining UHPC layer with steel plates and RC structures, the proposed strengthening method effectively enhances the shear capacity of pre-damaged RC beams. The experimental results demonstrate promising applications for strengthening old/defective bridges.
JOURNAL OF CONSTRUCTIONAL STEEL RESEARCH
(2024)
Article
Construction & Building Technology
Shujun Hu, Yuan Liao, Sizhi Zeng, Hai Huang, Yujie Yu
Summary: In this study, a new cross-section-type shear connector connection was proposed to improve the shear resistance in a prefabricated concrete frame-eccentrically steel brace structure. Experimental tests and numerical simulations were conducted, revealing that increasing the concrete strength, connector number, and connector section dimensions can enhance the shear stiffness and strength.
JOURNAL OF CONSTRUCTIONAL STEEL RESEARCH
(2024)
Article
Construction & Building Technology
Yong Wang, Yong Du, Shaojun Zhu, Lei Huang
Summary: This study investigated the influence of temperature on the anti-sliding performance of prestressed parallel wire strand clamps (PWSCs) through experiments and numerical analyses. The study found that the anti-sliding resistance of the clamps decreases at high temperatures, the fire resistance time decreases with higher thrusting load levels, and the bolt pretension also decreases.
JOURNAL OF CONSTRUCTIONAL STEEL RESEARCH
(2024)
Article
Construction & Building Technology
Hongbo Liu, Yixiao Zhou, Fei Wang, Yan Lu, Zhihua Chen
Summary: This study investigates the effects of low temperature and corrosion on the impact toughness of steel structures. It is found that both low temperature and corrosion can reduce the impact energy of the steel, with corrosion having a greater impact at low temperature.
JOURNAL OF CONSTRUCTIONAL STEEL RESEARCH
(2024)
