Article
Engineering, Civil
Chenglong Wu, Conglin Ma, Xiujun Wang, Ben Mou, Hao Ding
Summary: Prefabricated reinforced concrete composite structural systems have gained increasing attention in recent years. This study developed a three-dimensional solid model to investigate the influence of axial compression ratio, floor slab width, floor thickness, and floor reinforcement ratio on the hysteretic behavior of prefabricated composite beam joints. The suitability of existing calculation methods for bearing capacity was also evaluated.
Article
Construction & Building Technology
Wu Cheng Long, Kan Jian Cheng, Liu Ji Ming, Mou Ben
Summary: This study investigated the seismic performance of modular prefabricated SRC column to steel beam composite joint (MPCJ) through numerical modeling and analysis of different beam-end connections. The results showed that the MPCJ exhibited good ductility and deformation performance, with the beam end structure significantly influencing bolt tension and stress distribution. A theoretical calculation model was established based on research results, allowing for the design of MPCJs using the proposed formula.
STEEL AND COMPOSITE STRUCTURES
(2021)
Article
Construction & Building Technology
Yu Guo, Ke-jian Ma, Zhuo-qun Liu, Fang Yu, Qiang Fang
Summary: In order to reduce the height and improve the installation efficiency of a novel prefabricated steel-concrete open-web composite floor (SOF), a developed SOF was proposed. Through a full-scale laboratory test and parametric finite element analysis, the load-bearing capacity, failure modes, load-displacement relationship, and strain variations of the structure were explored. The experimental findings indicated good composite behavior between the concrete slab and upper chord, and no interfacial failure was observed. The conclusions drawn from this study can be used as a reference for the design and analysis of spatial composite slab structures.
JOURNAL OF CONSTRUCTIONAL STEEL RESEARCH
(2023)
Article
Construction & Building Technology
Semih Yilmaz, Serhat Demir, Nilhan Vural
Summary: This study presents the experimental performance of a high ductility and energy dissipation capacity connector named notched-slab fastener, which prevents cross-section loss in the timber beam by leaving a notch in the concrete slab, providing stable load carrying behavior with high-energy dissipation, and concentrating damage in the connector instead of concrete.
ADVANCES IN CONCRETE CONSTRUCTION
(2021)
Article
Construction & Building Technology
Cheng Long Wu, Xu Liu, Wei Pan, Ben Mou
Summary: This paper investigates a restoring force model for MPSC joint, proposing a trilinear skeleton curve model which was calibrated by comparing finite element models to demonstrate its high accuracy and applicability to MPSC joint design.
JOURNAL OF BUILDING ENGINEERING
(2021)
Article
Engineering, Civil
Ruyue Liu, Yong Yang
Summary: The study found that the amplitude of fatigue stress on the bottom steel plate directly affected the fatigue life of the composite slab, while the layout of studs and the number of steel plates with openings had little impact on fatigue performance. During the test, all specimens experienced similar fatigue damage development, ultimately failing primarily in fatigue fracture of the steel plate, followed by concrete crush in compression region.
THIN-WALLED STRUCTURES
(2021)
Article
Construction & Building Technology
Weiwei Lin, Nozomu Taniguchi, Takeaki Kubo
Summary: This study experimentally examines the mechanical performance of composite steel and concrete beams with expansion joints in the concrete slab. The test results provide new information for improving the design, construction, management, maintenance, and structural health assessment of such beams.
ADVANCES IN STRUCTURAL ENGINEERING
(2022)
Article
Construction & Building Technology
Chenglong Wu, Jiming Liu, Qihui Wang, Ben Mou, Wei Pan
Summary: The influence of key parameters on the mechanical properties of MPCIJ was investigated through finite element analysis. The shear mechanism and bearing capacity calculation formula were proposed based on test and FEA results. Increasing the axial compression ratio can enhance the bearing capacity and deformation performance of MPCIJ.
JOURNAL OF CONSTRUCTIONAL STEEL RESEARCH
(2021)
Article
Engineering, Civil
Shaochun Ma, Long Chen, Peng Bao, Dongtao Wang
Summary: In this study, a novel shear connector, the prefabricated weld-nut bolt (PWNB), was designed for steel-concrete composite structures. Experimental and numerical analysis were conducted to validate the advantages and disadvantages of the PWNB connector and to optimize its design. The optimized PWNB connector can serve as an economical and reasonable option for improving the shear performance of steel-concrete composite structures.
INTERNATIONAL JOURNAL OF CIVIL ENGINEERING
(2022)
Article
Construction & Building Technology
Xiao-Fang Deng, Teng-Fang Dong, Feng Fu, Yun-Hao Weng
Summary: The progressive collapse resistance of prefabricated concrete frames with hybrid steel-concrete composite connections (HSCC) is rarely studied. Experimental results showed that the failure patterns of prefabricated concrete frames with HSCC are different from that of the RC frame counterpart. Due to the brittle failure of the connections in prefabricated concrete frames, both ultimate bearing capacity and deformation capacity are smaller than the corresponding RC frame.
JOURNAL OF BUILDING ENGINEERING
(2022)
Article
Construction & Building Technology
Il-Seung Yang, Deuckhang Lee, Hyunjin Ju, Se-Jung Lee, Jae-Yuel Oh
Summary: This study presents a unique composite moment frame system with prefabricated permanent steel form, suitable for fast-built and economical constructions. By selectively utilizing the composite mechanism between concrete and steel at the beam-column connection regions, higher strength and ductility demands can be met. Full-scale cyclic loading tests showed that the proposed method fully satisfies the required performances to be accepted as the composite special moment frame specified in the current design code.
JOURNAL OF BUILDING ENGINEERING
(2022)
Article
Construction & Building Technology
Liusheng Chu, Ye Tian, Danda Li, Yuexi He, Hu Feng
Summary: This paper studied and compared the existing calculation methods for shear capacity of SRC column-steel beam joints from different standards. Through experiments, it was found that the main design parameters were axial compression ratio and concrete slab width, with an increase in the axial compression ratio leading to higher shear capacity of the joints. Additionally, the presence of an RC slab greatly increased the shear capacity of the joints.
JOURNAL OF BUILDING ENGINEERING
(2021)
Article
Engineering, Civil
Jinlong Jiang, Zhixiang Zhou, Hongjie Wang, Yang Zou, Zhongya Zhang, Huaping Liang
Summary: CSPC connector is an ideal connector for prefabricated steel-concrete composite beams, with excellent load-slip curve and assembly construction efficiency. Compared to existing connectors, CSPC connector has higher shear stiffness and ductility coefficient. The shear capacity of CSPC connector is not significantly affected by the maturity time of grouting material.
Article
Construction & Building Technology
Abhishek Verma, Dipti Ranjan Sahoo
Summary: Steel plate shear walls (SPSWs) with composite slabs were experimentally tested and numerically analyzed to investigate their load resisting capacities and failure modes under lateral loading. The proposed ductile detailing of beam-column joint ensured stable and high ductility performance of the SPSW specimen, while the presence of composite slabs increased demands on the boundary elements.
JOURNAL OF CONSTRUCTIONAL STEEL RESEARCH
(2022)
Article
Engineering, Geological
Gang Liu, Wei Huang, Chen-Long Zhang, Wei Wang, Zhen-Hui Fan
Summary: Quasi-static tests were performed to study the failure mechanism and seismic behavior of prefabricated steel multi-ribbed composite walls (PSMCW) with cast steel joints. The results showed that PSMCWs connected with cast steel joints displayed a typical shear failure pattern and the cast steel joints remained undamaged. The shear and energy dissipation capacities and stiffness of PSMCW were improved compared to a prefabricated multi-ribbed composite wall (PMCW), while the deformation capacity remained consistent. Numerical simulations using ABAQUS software were in good agreement with test data.
SOIL DYNAMICS AND EARTHQUAKE ENGINEERING
(2023)