Flexural performance of assembly integral floor structure voided with steel mesh boxes

Huang, Yaxin; Yang, Jianjun; Zhong, Changjun

doi:10.1016/j.jobe.2022.104693

Cited by 6 publications

(4 citation statements)

References 24 publications

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“…Huang's [50] study investigated the flexural behavior of two-way slab components filled with wire mesh cages within modular construction frameworks. Utilizing both experimental methods and finite element analysis, they assessed the structure's capacity for bearing vertical loads and resistance to bending, focusing on the distribution of cracks, deformation patterns, and load-bearing capabilities.…”

Section: Introduction To Performance Research On Prefabricated Buildi...mentioning

confidence: 99%

A Comparative Review of Recent Research Progress in Prefabricated Buildings in China and Other Countries

Wu,

Han,

Cui

et al. 2024

Buildings

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Prefabricated building construction has emerged as a transformative technology in construction engineering and the building industries. However, owing to its research characteristics, the relevant literature on prefabricated buildings is diverse and fragmented. This study offers a comparative review of relevant 21st century literature on prefabricated buildings using VOSviewer1.6.18 software. The research progress and future opportunities about prefabricated buildings were comprehensively analyzed, which provides recommendations for its subsequent development. Through keyword searches on the Web of Science, 3214 documents were identified, and an overall analysis of co-citations and co-authorship was conducted. Additionally, a comparative co-occurrence analysis highlighted the differences between China and other countries. Further elaboration of research hotspots is provided, and three future research directions are proposed: (1) energy conservation and reducing the environmental impact of prefabricated buildings, (2) improving the performance of prefabricated building components, and (3) deepening the understanding of the behavior of prefabricated structures under seismic and dynamic conditions. This study provides practitioners and scholars in the field of construction engineering with a comprehensive overview of the literature on prefabricated buildings and paves the way for future advancements in the industry. The findings of this study can be used to promote prefabricated buildings in the architecture, engineering, and construction industries.

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Section: Introduction To Performance Research On Prefabricated Buildi...mentioning

confidence: 99%

A Comparative Review of Recent Research Progress in Prefabricated Buildings in China and Other Countries

Wu,

Han,

Cui

et al. 2024

Buildings

View full text Add to dashboard Cite

show abstract

“…It was found that the horizontal component force of the bent-up ends increased the flexural strength of the joint, whereas the vertical component force of the bent-up ends enhanced the anchorage performance between the precast units and top-covering concrete. To improve the ease of construction of large-span floors, Huang et al [21] developed an assembly integral floor structure voided with steel mesh boxes. Experimental results supported that the design had a high bi-directional vertical bearing capacity.…”

Section: Introductionmentioning

confidence: 99%

Flexural Performances of Novel Wet Joints with Sleeve Connections in Precast Composite Floor System

Zhang,

Feng,

Zeng

et al. 2024

Buildings

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A new type of assembled integral multi-ribbed composite floor system with novel wet joint and steel sleeve connections, which exhibits satisfactory strength and stiffness, was proposed in the previous study. To further study the flexural performances of the joints, six groups of specimens, including two cast in situ concrete slabs and four composite slabs sized 4700 mm × 1200 mm × 300 mm and 2450 mm × 1200 mm × 300 mm, were investigated under four-point flexural tests. Four main influence factors were experimentally studied, i.e., casting methods, joint amounts, shear span lengths, and steel sleeve layout directions, on the failure modes, crack distributions, and deflection–load carrying capacity relationship. Test results indicated that the proposed composite slab system could provide the ultimate bearing capacity lower by 7% than that of the cast in situ concrete slabs, largely exceeding the code-predicted strength. No strain difference between the steel sleeve connections and steel rebars indicated good wet joint connection behavior. More hollow-core sections and long shear spans increased the potential of interfacial splitting cracks, leading to a shorter elastic stage and lower elastic stiffness. A finite element model was further parametrically conducted to explore the structural performances. Finite element results also indicate that the precast concrete slab had a more significant influence on the failure loads than the influences of concrete compressive strength and lap-splice steel rebar strength. These findings indicate that the proposed composite slab systems possess a satisfactory performance in the ultimate bearing capacity and deformability. Thus, such an assembled integral multi-ribbed composite floor system can be widely applied in construction.

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“…This study describes the experimental study, finite element parameters and refined analysis (Zhong, 2021, 2022) of 6A13-T6 aluminium alloy bending beam to obtain the data to solve the above problems. First, 40 tensile specimens were tested to obtain the basic mechanical properties of 6A13-T6.…”

Section: Introductionmentioning

confidence: 99%

6A13-T6 high-strength aluminium alloy beams: Test, finite element analysis and design recommendations

Zhong

Chen

Feng

et al. 2023

Advances in Structural Engineering

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6A13-T6 high-strength aluminium alloy material has excellent mechanical properties, but the lack of research on its mechanical properties is the biggest obstacle to its application in building engineering. This paper reports the test results of material tensile and member bending and finite element simulation to reveal the constitutive curve, failure mode, and ultimate bearing capacity of 6A13-T6 high-strength aluminium alloy. Specifically, the non-proportional yield strength of 6A13-T6 exceeds 340 MPa, the ultimate strength reaches 352 MPa, and the elongation after fracture is 14.5%. All the tested members have an evident bending phenomenon, and the width-to-thickness ratio determines the significant degree of local buckling. The Chinese code takes too much account of the reduction of section thickness and does not consider the plastic development of the section, so the predicted bearing capacity is conservative. The American code does not fully consider the effect of section plasticity, which is also conservative. The finite element modelling technology adopted is reasonable and feasible. The section can provide a greater bearing capacity when it enters the plastic strengthening stage. The local buckling will limit the bearing capacity, while the plate group effect can improve the bearing capacity of the member. It is suggested to increase the section plastic development coefficient in the Chinese code to 1.15. The results of this survey provide a reference for designers and engineers to use 6A13-T6 conveniently.

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Flexural performance of assembly integral floor structure voided with steel mesh boxes

Cited by 6 publications

References 24 publications

A Comparative Review of Recent Research Progress in Prefabricated Buildings in China and Other Countries

A Comparative Review of Recent Research Progress in Prefabricated Buildings in China and Other Countries

Flexural Performances of Novel Wet Joints with Sleeve Connections in Precast Composite Floor System

6A13-T6 high-strength aluminium alloy beams: Test, finite element analysis and design recommendations

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