Vehicular impacts on precast concrete bridge piers with grouted sleeve connections

Sun, Wenjuan; Yang, Cancan; Fan, Wei; Wang, Hongxiang; Su, Huaxiang

doi:10.1016/j.engstruct.2022.114600

Cited by 12 publications

(2 citation statements)

References 42 publications

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“…On the other hand, the remainder of the mesh is a lot more sparsely distributed. The drop hammer deforms very little during the impact, which is close to a rigid body, so it is considered a rigid cube in the finite element simulation 1 , 3 , 36 , 51 , with a cross-sectional size of 80 mm × 30 mm, consistent with the cross-sectional size of the impact body in the test. As a result of this treatment, the analysis time required for the drop hammer contact to RC collision simulations can be reduced by 43%.…”

Section: Numerical Simulation Softwarementioning

confidence: 99%

Numerical study on existing RC circular section members under unequal impact collision

Liu

Al-Bukhaiti

Zhao

et al. 2022

Sci Rep

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Traffic accidents and derailed train-related incidents have occurred more often than ever in recent years, resulting in some economic damage and casualties. Reinforced concrete (RC) constructions often involve derailed train and vehicle accidents. Rarely are such side collisions studied in previous studies. To do this, high-fidelity simulation-based finite-element (FE) models are created in this paper to accurately simulate the collision of circular RC members with a derailed train. The reinforced concrete member structure is common in high-speed railway stations. The impact energy of the impact body is significant, causing structural member failure. It analyses the dynamic behavior of reinforced concrete members under unequal span impact loads. Numerical implementations of impact issues are discussed from the perspective of geometric, contact, and material properties. The reliability and precision of the ABAQUS code to solve impact issues are verified by comparing failure modes, impact, and deflection time history experimental outputs. By analysing the impact response characteristics, used the control variables to study the failure process and mode (including the characteristics of impact and reaction forces, deflection time history curve, impact force–deflection curve, and bearing reaction force–deflection curve). The reinforcement ratio, impact velocity, concrete strength, and slenderness ratio significantly affect shear crack pattern and development. Changes in impact velocity and slenderness ratio also affect member failure modes.

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Section: Numerical Simulation Softwarementioning

confidence: 99%

Numerical study on existing RC circular section members under unequal impact collision

Liu

Al-Bukhaiti

Zhao

et al. 2022

Sci Rep

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show abstract

“…Wu [ 12 ] carried out experimental research on the flexural performance of concrete-filled steel tubular specimens and comparison specimens connected by grouting sleeves, and analyzed their stiffness, ductility, and stress process. For the connection of the grouting sleeve, the inability to accurately control the grouting amount [ 13 ] is likely to lead to the lack of grout at the connection of components, or the increase of the outer contour [ 14 ], which will lead to quality problems in the structure [ 15 ]. In view of this, it is necessary to provide a new connection mode with a high degree of standardization, convenient construction, reasonable mechanical properties, and not susceptible to environmental and anthropic factors, and further realize the diversity of concrete filled steel tube extension.…”

Section: Introductionmentioning

confidence: 99%

Test on Compressive Performance of Concrete Filled Circular Steel Tube Connected by Thread through Inner Lining Tube

2022

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The connection method of lengthening the steel tube of concrete filled circular steel tubes by inner lining tube and threaded connection is proposed. Taking the length, depth, and position of the thread as the basic parameters, 12 concrete filled circular steel tubes connected by thread through inner lining tube were designed and manufactured, and an axial compressive test was carried out. The axial compressive loading-longitudinal compressive displacement curves, axial compressive loading-strain of steel tube curves, and failure mode of the specimens were analyzed, and the effects of different parameters on the axial compressive bearing capacity and stiffness of the specimens were studied. The results show that the axial compressive loading-longitudinal compressive displacement curves of the specimen can be divided into the elastic stage, elasto-plastic stage, and plastic reinforcement stage in the range of parameters studied in this paper. The bearing capacity and stiffness of the specimens connected by thread through inner lining tube are no worse than those of the unconnected specimen or the specimen connected by weld. Bearing capacity and stiffness of the specimen increase with the increase of thread length. The calculation method of the axial compressive bearing capacity of concrete filled circular steel tubes connected by thread through inner lining tube are suggested.

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Segment test to investigate early age movement in grouted connections of offshore wind turbines

Joshua,

Bastian,

Michael

et al. 2024

Construction and Building Materials

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Vehicular impacts on precast concrete bridge piers with grouted sleeve connections

Cited by 12 publications

References 42 publications

Numerical study on existing RC circular section members under unequal impact collision

Numerical study on existing RC circular section members under unequal impact collision

Test on Compressive Performance of Concrete Filled Circular Steel Tube Connected by Thread through Inner Lining Tube

Segment test to investigate early age movement in grouted connections of offshore wind turbines

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