Article
Construction & Building Technology
Shizhao Sun, Lin Chen, Tao Liu, Daijiang Zhou, Mengqi Yue
Summary: A new type of steel plate-polyurethane foam composite protective structure was proposed, with folded-web specimens showing better energy absorption performance compared to straight-web counterparts, especially when fully filled with foam.
CASE STUDIES IN CONSTRUCTION MATERIALS
(2022)
Article
Engineering, Mechanical
Jianxun Zhang, Yuqing Zhu, Kaikai Li, Hui Yuan, Jinlong Du, Qinghua Qin
Summary: This paper investigates the dynamic response and impact resistance of aluminum honeycomb sandwich plates with GLARE face-sheets under metal foam projectile impact. Experimental and numerical results show that the impact resistance and energy absorption of the sandwich plates can be improved by adjusting parameters such as face-sheet thickness, impulse, and core stiffness, providing guidance for the optimal design of FML sandwich structures under metal foam projectile impact.
INTERNATIONAL JOURNAL OF IMPACT ENGINEERING
(2022)
Article
Engineering, Civil
Jianxun Zhang, Jinlong Du, Fuxing Miao, Haoyuan Guo
Summary: This paper studies the large deflection of the slender circular metal foam-filled tube under transverse loading through theoretical and numerical analysis. The yield criterion and analytical solution for the plastic behavior of the foam-filled tube are proposed, considering the interaction between bending, stretching, and foam strength. The numerical results confirm the accuracy of the analytical model. The influences of various factors on the load-carrying capacity and energy absorption of the foam-filled tubes are discussed in detail.
THIN-WALLED STRUCTURES
(2022)
Article
Engineering, Mechanical
Xuke Lan, Guangyan Huang, Xiaobing Bian, Yan Liu
Summary: In order to improve the impact resistance and energy absorption capacity of hybrid-chiral honeycomb beams, foam-filled hybrid-chiral honeycomb beams were designed and fabricated. The foam-filled beams showed enhanced impact resistance and higher specific energy absorption value compared to the empty beams. The impact resistance of the foam-filled beams can be effectively improved by using a gradient cell-wall thickness arrangement.
INTERNATIONAL JOURNAL OF IMPACT ENGINEERING
(2023)
Article
Engineering, Civil
Yonghui Wang, Rong Zhang, Suntao Liu, Ximei Zhai, Xudong Zhi
Summary: This study developed a novel aluminium foam-filled circular-triangular nested tube (AFCTNT) energy absorber and investigated its energy absorption behavior under impact loading through experimental and numerical studies. It was found that the deformation modes of the AFCTNT energy absorbers were significantly affected by the volume of the aluminium foam filler, and filling aluminium foam improved the energy absorption performances, including higher energy absorption and efficiency. Both experimental and numerical results indicated that the AFCTNT energy absorber with fully-filled aluminium foam outperformed other configurations due to a more significant interaction effect.
Article
Construction & Building Technology
Yanbo Wen, Zhichao Lai, Jiajia Ma, Huan Liu, Yin Wang, Hui Chi, Ruiyuan Huang
Summary: This study experimentally and numerically investigated the dynamic response of high-density rigid polyurethane foam (RPUF). The drop-weight tests were conducted under three impact velocities, and the test results showed that the dent depth and absorbed energy rise as impact velocity increases. A constitutive model for high-density RPUF was proposed based on the measured mechanical properties and it accurately described the dynamic performance of the material under impact loading.
CONSTRUCTION AND BUILDING MATERIALS
(2023)
Article
Mechanics
Tamer A. Sebaey, Dipen Kumar Rajak, Hassan Mehboob
Summary: Fiber reinforced plastics filled with polyurethane foam are widely used as energy absorbers for safety enhancement. The study found that using PU foam inside CFRP composite tubes increases peak load and energy absorption, while internal CFRP reinforcements do not significantly improve energy absorption but do improve peak load.
COMPOSITE STRUCTURES
(2021)
Article
Mechanics
Hao Wang, Suchao Xie, Zhejun Feng, Kunkun Jing, Jing Zhang, Hui Zhou
Summary: To enhance the mechanical properties of Nomex honeycomb, in-situ foaming using rigid polyurethane (PU) foam and flexible polyurethane foam (NHRPU, NHFPU, collectively NHPU) was performed. Mechanical properties were evaluated through tests, theoretical and finite element methods. The results showed that NHRPU and NHFPU significantly improved energy absorption, with NHRPU enhancing the absorption performance and NHFPU enhancing the resilience of the honeycomb.
COMPOSITE STRUCTURES
(2023)
Article
Metallurgy & Metallurgical Engineering
M. Salehi, S. M. H. Mirbagheri, A. Jafari Ramiani
Summary: The study found that the deformation of multilayer foam filled tubes starts from low-strength components and propagates through high-strength components with increasing stress. Graded structures consisting of aluminum and A356 alloy foams exhibit better specific energy absorption, while zinc foam does not show positive effects on crash performance.
TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA
(2021)
Article
Construction & Building Technology
Mohammad Asad, Tatheer Zahra, David P. Thambiratnam, Tommy H. T. Chan, Yan Zhuge
Summary: This paper presents a method for designing and inserting geometrically modified auxetic foam structures in the hollow cores of block masonry walls to mitigate the adverse effects of vehicular impacts. The finite element models of geometrically modified auxetic foams developed in this study show a significant reduction in displacement and change in failure mechanism of masonry walls under high-velocity lateral impacts, contributing to safer masonry buildings along busy road fronts.
CONSTRUCTION AND BUILDING MATERIALS
(2021)
Article
Engineering, Multidisciplinary
Li Wang, Boyi Zhang, Jian Zhang, Yuexin Jiang, Wei Wang, Gaohui Wu
Summary: A new syntactic foam material was prepared by selecting cenospheres from industrial waste fly ash. The size of the cenospheres and the impact velocity were found to affect the mechanical characteristics and energy absorption capacity of the material. It was demonstrated that the syntactic foam-filled tube exhibited a higher effective energy absorption ratio under impact loading.
JOURNAL OF ZHEJIANG UNIVERSITY-SCIENCE A
(2023)
Article
Engineering, Mechanical
J. Jefferson Andrew, Johannes Schneider, Jabir Ubaid, R. Velmurugan, N. K. Gupta, S. Kumar
Summary: This study focuses on the low-velocity impact response of 3D plate-lattices fabricated via stereolithography additive manufacturing. The hybrid lattices were found to attenuate peak impact stress and extend load pulse duration, leading to higher toughness and energy absorption capacity. The distribution of plates in each elementary structure in hybrid configuration plays a crucial role in transforming brittle mode fracture into progressive damage of the plate-lattices.
INTERNATIONAL JOURNAL OF IMPACT ENGINEERING
(2021)
Article
Mechanics
E. Kucukkalfa, G. Isikci, K. Yildiz, H. Cebeci
Summary: 3D weaving of I-beam structures can eliminate delamination and joints, making them more versatile for engineering applications compared to metal or traditional laminated composites. By utilizing polymeric foams and adhesive layers, the mechanical characteristics and structural integrity of the I-beams can be improved without adding significant weight. This study successfully combined polymeric foams with 3D woven glass fiber composites to create high-performance I-beam composites. The results showed that in-situ foaming supported by adhesive layers greatly enhanced the structural integrity under bending.
COMPOSITE STRUCTURES
(2023)
Article
Engineering, Mechanical
Yan-Zuo Liu, Shuang Li, Xin Lin, Jin-Shui Yang, Yue Li, Xiong-Wen Jiang, Yu Tang, Wei Zhang
Summary: In this paper, a composite reinforced hyper-elastic porous polyurethane structure filled with carbon fiber composite circular tubes is designed and fabricated. The dynamic responses and failure modes of the structure under underwater blast loads are investigated through tests and simulations. The results show that adding composite tubes significantly improves the stiffness and energy absorption capacity of the structure. The CRHPPs without reinforcement in the front first layer, whether gradient or uniform in the other layers, show better underwater explosion resistance and protection effect.
INTERNATIONAL JOURNAL OF IMPACT ENGINEERING
(2023)
Article
Engineering, Mechanical
Milad Oloumi Doudaran, Hamed Ahmadi, GholamHossein Liaghat
Summary: The aim of this paper is to investigate the energy absorption behavior of reticulated tubes with different auxetic and non-auxetic wall grid patterns. The results show that the auxetic tubes exhibit a significant increase in various evaluating parameters compared to non-auxetic conventional structures. Filling the structures with polyurethane foam causes symmetric deformation and demonstrates the advantage of the auxetic pattern even under quasi-static loading. A numerical analysis and parametric study further explore the effects of various loading rates.
JOURNAL OF THE BRAZILIAN SOCIETY OF MECHANICAL SCIENCES AND ENGINEERING
(2022)
Article
Engineering, Environmental
Jingyi Lu, Bibo Wang, Pengfei Jia, Wenhua Cheng, Can Liao, Zhoumei Xu, Liang Cheng, Yuan Hu
Summary: In this study, ZHS nanocubes were in-situ fabricated on Ti3C2Tx nanosheets to improve the thermal management capacity and fire safety of EP. The OD-2D hierarchical structure of ZHS@M enhanced the safety of EP by reducing heat release rate and hazardous gases during combustion, while also improving tensile robustness for electronics in thermal management field. This hierarchical EP-ZHS@M composites provide significant benefits in cleaning thermal accumulation, increasing fire safety, and preventing thermal disaster chain formation in modern electronic devices.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Engineering, Multidisciplinary
Jingyi Lu, Pengfei Jia, Can Liao, Zhoumei Xu, Fukai Chu, Mutian Zhou, Bin Yu, Bibo Wang, Lei Song
Summary: The study enhanced the tensile robustness and fire safety of TPU by incorporating SSO nanorods on MXene nanosheets, leading to improved mechanical properties and decreased heat release rate during combustion. The biomimetic leaf vein-inspired structure of TPU-MSSO nanocomposites not only exhibited superior toughness, but also enhanced fire safety, contributing to the prevention of thermal disaster chain formation and enabling further applications in portable devices and flexible electronics packaging.
COMPOSITES PART B-ENGINEERING
(2022)
Article
Green & Sustainable Science & Technology
Jingyi Lu, Can Liao, Liang Cheng, Pengfei Jia, Zhenting Yin, Lei Song, Bibo Wang, Yuan Hu
Summary: This study presents a facile and eco-friendly approach to fabricate flame retardant polyurethane (PU) sponge with exceptional fire safety, smoke suppression capacity, and electromagnetic interference (EMI) shielding effectiveness. The addition of octaammonium-polyhedral oligomeric silsesquioxane (OAPOSS) and titanium carbide (Ti3C2Tx) nanosheets significantly reduces heat release rate, smoke production, and achieves high EMI shielding effectiveness.
JOURNAL OF CLEANER PRODUCTION
(2022)
Article
Chemistry, Physical
Pengfei Jia, Chao Ma, Jingyi Lu, Wenhao Yang, Xin Jiang, Guangyong Jiang, Zhenting Yin, Yong Qiu, Lijun Qian, Xiaoli Yu, Yuan Hu, Weizhao Hu, Bibo Wang
Summary: This study explores the effect of different forms of copper salt modified graphene on enhancing the fire protection efficiency and mechanical property of flexible polyurethane foam (FPUF). It shows that adding copper salt hybrids can significantly reduce the heat release and improve smoke and toxic gases suppression in FPUF, while maintaining its buffering performance and increasing tensile and compressive strength. Overall, the hybrid FPUF exhibits outstanding flame retardant and smoke suppression properties, providing a promising strategy for FPUF preparation.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2022)
Article
Chemistry, Physical
Pengfei Jia, Xiaoli Yu, Jingyi Lu, Xiaodong Zhou, Zhenting Yin, Gang Tang, Tingting Lu, Liying Guo, Lei Song, Bibo Wang, Yuan Hu
Summary: Rare earth stannates were used to enhance the flame retardancy and physical properties of polyolefin/IFR composites, while reducing toxic gas release during combustion.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2022)
Article
Construction & Building Technology
Yonghui Wang, Jingyi Lu, Ximei Zhai, Wenming Wang
Summary: A novel steel-concrete-steel sandwich panel with hybrid connectors was proposed and its flexural behaviors were studied through experiments. The results showed that increasing the steel faceplate thickness and decreasing the shear span significantly improved the flexural resistance and elastic stiffness of the sandwich panel.
JOURNAL OF CONSTRUCTIONAL STEEL RESEARCH
(2022)
Article
Chemistry, Multidisciplinary
Jingyi Lu, Liang Cheng, Can Liao, Pengfei Jia, Lei Song, Bibo Wang, Yuan Hu
Summary: This paper presents a series of EMI shielding materials with mussel byssus-inspired structure, achieved through an efficient vacuum-assisted filtration method. These materials exhibit superior mechanical properties and EMI shielding effectiveness. Additionally, they demonstrate excellent flame-stopping capacity and low temperature endurance. Therefore, this research is of great importance for the development of EMI shielding products with low fire hazards and high endurance in harsh environments.
ADVANCED MATERIALS INTERFACES
(2022)
Article
Engineering, Environmental
Zhenting Yin, Bibo Wang, Qinbo Tang, Jingyi Lu, Can Liao, Pengfei Jia, Liang Cheng, Lei Song
Summary: In this study, a biomimetic-structural MXene derivative was fabricated using in-situ growth technique, resulting in improved interfacial compatibility, mechanical properties, and flame retardancy of epoxy resin nanocomposites.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Automation & Control Systems
Jingyi Lu, Daniel E. Quevedo
Summary: This research considers the joint design of control and scheduling in networked control systems under stochastic Denial-of-Service (DoS) attacks. A sensor measures the system output and sends dynamic state estimates to a remote controller over a packet-dropping link. An attacker aims to degrade control performance by increasing packet-dropout rate with a DoS attack. The study establishes a partially observable stochastic game to derive the optimal joint design of scheduling and control, and employs Nash Q-learning to solve the problem and guarantee an epsilon-Nash equilibrium.
Article
Automation & Control Systems
Jingyi Lu, Daniel E. E. Quevedo, Vijay Gupta, Subhrakanti Dey
Summary: We investigate the maximum information gain that can be obtained by an undetected hacker through hacking. The study focuses on a dynamic process observed by a sensor, where the sensor transmits a local estimate of the system state to a remote estimator using a reference transmission policy across a wireless channel. The hacker eavesdrops on the transmissions and hijacks the sensor to reprogram its transmission policy. It is shown that perfect secrecy can only be achieved for unstable systems when there are no packet dropouts in the acknowledgments channel. In other cases, perfect secrecy is proven to be unattainable regardless of the reference policy and detection methods. A Stackelberg game is proposed to derive the optimal defensive reference policy, and a branch-and-bound algorithm is presented to solve the game.
IEEE TRANSACTIONS ON AUTOMATIC CONTROL
(2023)
Article
Engineering, Mechanical
Yonghui Wang, Jingyi Lu, Ximei Zhai, Xudong Zhi, Hongyuan Zhou
Summary: This study developed a new steel-concrete-steel sandwich panel with energy absorption connectors (SCS-EC) for resisting impact load and investigated its impact responses through tests and simulations. The failure modes of the SCS-EC were classified into two types based on the crushing magnitude of the energy absorption connector (EC). The EC effectively dissipated impact energy through the plastic deformation of pleated steel plates and the compression of aluminum foam fillers, while the SCS panel exhibited global and local deformation under impact loading. Additionally, the effects of pleated plate thickness and angle, aluminum foam filler, and initial momentum on the impact performances of the SCS-EC were quantitatively studied.
INTERNATIONAL JOURNAL OF IMPACT ENGINEERING
(2023)
Article
Engineering, Environmental
Xuefang Lou, Jingyi Lu, Chen Wang, Yanling Song, Luwen Zhu, Yuchan You, Jucong Zhang, Jiahao Hu, Xinyi Xu, Xiaoling Xu, Yongzhong Du
Summary: Iron overload-induced oxidative injury of renal tubular epithelial cells is a crucial factor in the development of ischemia-reperfusion acute kidney injury (IR-AKI). Curcumin, a polyphenolic compound with free radical-scavenging properties, has limited applications due to its poor water solubility and renal distribution. Ferritin, an iron storage protein, has the potential to transport excess iron and prevent further oxidative damage. A nanoplatform called ferritin nanocages loaded with curcumin (FNC/Cur) was developed, which showed effective targeting and reduction of reactive oxygen species (ROS) in injured kidneys. This represents a promising approach for synergistic treatment of IR-AKI.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Automation & Control Systems
Dongmei Wang, Shaoxiong Shi, Jingyi Lu, Zhongrui Hu, Jing Chen
Summary: This paper establishes a digital twin model of a pipeline based on the pressure signal generated by a pipeline leak and researches on pipeline leak detection. An online updating of the twin model is established to update the data of the physical information space and the parameters of the twin model online. A visual model is established to display the spatial data of physical information of pipelines and output data of the digital twin of pipelines in real-time. The method proposed in this paper has high detection accuracy, indicating the feasibility of using digital twin prediction for gas pipeline leakage detection.
SYSTEMS SCIENCE & CONTROL ENGINEERING
(2023)
Article
Automation & Control Systems
Yixuan Hou, Yong Zhang, Jingyi Lu, Nan Hou, Dandi Yang
Summary: This paper introduces an improved multi-strategy MPA-VMD method for pipeline leakage detection. By overcoming the slow convergence speed and the tendency to fall into local optimum of the original marine predator algorithm (MPA), the proposed improved MPA is able to find important parameters in variational mode decomposition (VMD) and select effective modes using dynamic entropy. The algorithm further enhances its ability to escape from local optimum, improves convergence speed, and achieves better denoising effect compared to other existing methods.
SYSTEMS SCIENCE & CONTROL ENGINEERING
(2023)
Article
Green & Sustainable Science & Technology
Henghui Deng, Jingyi Lu, Dunsheng Liang, Xiaomin Wang, Tongyao Wang, Weihao Zhang, Jing Wang, Chaoqun Zhang
Summary: In this study, bio-based waterborne polyurethane-poly(acrylic acid) dispersion and films with an interpenetrating polymer network structure were prepared using thermal induced free radical emulsion polymerization. The properties of the resulting materials were improved by increasing the content of acrylic acid, leading to enhanced mechanical properties and water resistance.
JOURNAL OF RENEWABLE MATERIALS
(2023)
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)
