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学者姓名：王莹
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Abstract ：
Shear walls are widely used as lateral load-resisting systems in high-rise building structures. The design and nonlinear analysis of shear walls under seismic loads for recoverability are complicated and challenging, which demands nonlinear computer modeling procedures. This paper presents a novel finite element named Double Vertical Beam-column with Shell Element (DVBSE) for the nonlinear analysis of complex reinforced concrete shear walls with columns. The DVBSE is implemented in the open-source finite element program OpenSees. The theoretical formulations of DVBSE are described in detail. The accuracy of the developed DVBSE is established by comparing the finite element analysis results with existing experimental data on recoverable steel-GFRP composite bar reinforced concrete shear walls. The comparative study demonstrates that the proposed DVBSE is superior to the commonly used finite element model in simulating the responses of recoverable complex shear walls under seismic loads. These research findings contribute to further advancements in the development of new shear wall elements and lay a solid foundation for the nonlinear numerical simulation of innovative shear walls.
Keyword ：
Double Vertical Beam-column with Shell Double Vertical Beam-column with Shell Element Element Finite element analysis Finite element analysis Numerical simulation Numerical simulation Shear walls Shear walls
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| GB/T 7714 | Guan, Minsheng , Hang, Xiru , Wang, Mengsen et al. Development and implementation of shear wall finite element in OpenSees [J]. | ENGINEERING STRUCTURES , 2024 , 304 . |
| MLA | Guan, Minsheng et al. "Development and implementation of shear wall finite element in OpenSees" . | ENGINEERING STRUCTURES 304 (2024) . |
| APA | Guan, Minsheng , Hang, Xiru , Wang, Mengsen , Zhao, Hanyuan , Liang, Qing Quan , Wang, Ying . Development and implementation of shear wall finite element in OpenSees . | ENGINEERING STRUCTURES , 2024 , 304 . |
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This paper proposed a novel high-strength steel-UHPC-clad steel composite wall (HS-UHPC-CS composite wall) and investigated its axial compressive behavior through experimental and numerical methods. A total of 18 axial compressive tests and finite element (FE) analyses, including parametric studies of 120 cases, were conducted. It was shown that the stud spacing-to-plate thickness ratio and the normalized slenderness ratio notably affected the strength and local buckling, while their influence on the initial stiffness was minor. The strength and initial stiffness were improved, while the ductility was compromised by the presence of ultra-high-performance concrete (UHPC). Steel fiber was critical to the HS-UHPC-CS composite wall, while the lack of steel fiber could trigger premature brittle failure. The influence of the strength of concrete was higher compared to steel plate. The critical buckling stress of the steel plate was calculated using Euler's buckling formula for the clad steel plate of the HS-UHPC-CS composite wall. The results were compared with the ordinary composite wall database. In addition, strength from test results, FE results, and the database were compared were compared with strength calculated by design provisions. It was found that the calculated strength was close but not safe. It was recommended that different concrete contribution coefficients should be applied for HS-UHPC-CS composite walls with different normalized slenderness ratios.
Keyword ：
Clad steel Clad steel Composite wall Composite wall Finite element Finite element High -strength steel High -strength steel UHPC UHPC
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| GB/T 7714 | Wang, Ying , Li, Xiang , Liao, Tianyu et al. Axial compressive behavior of high-strength steel-UHPC-clad steel composite walls [J]. | THIN-WALLED STRUCTURES , 2024 , 197 . |
| MLA | Wang, Ying et al. "Axial compressive behavior of high-strength steel-UHPC-clad steel composite walls" . | THIN-WALLED STRUCTURES 197 (2024) . |
| APA | Wang, Ying , Li, Xiang , Liao, Tianyu , Lai, Zhichao , Fang, Chenxi , Zuo, Junbo . Axial compressive behavior of high-strength steel-UHPC-clad steel composite walls . | THIN-WALLED STRUCTURES , 2024 , 197 . |
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This study experimentally investigated the out -of -plane flexural behavior of assembled composite walls (ACWs). An experimental database was established, and seven specimens were tested. The effects of several parameters were investigated, including steel plate thickness, distance between two steel plates, and external concrete layer thickness. The results showed that ACW specimens exhibited promising out -of -plane flexural strength compared to the reinforced concrete specimen. The ductility increased with increasing distance between two steel plates and increasing thickness of the external concrete layer, while the effect of steel plate thickness was minor. The flexural strength and stiffness of the specimens were improved with increasing values of the three test parameters. Experimental results were used to evaluate the applicability of current design provisions (ACI 349M-06, GB 50936-2014, and JEAC-4618) for estimating flexural strength. It was indicated that the design equations of ACI 349M-06 estimated the out -of -plane flexural strength with reasonable accuracy.
Keyword ：
Assembled composite walls (ACW) Assembled composite walls (ACW) Experimental study Experimental study External concrete layer External concrete layer Out-of-plane flexural behavior Out-of-plane flexural behavior
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| GB/T 7714 | Wang, Ying , Dong, Cuifen , Lai, Zhichao et al. Out-of-plane flexural behavior of assembled composite shear wall [J]. | JOURNAL OF CONSTRUCTIONAL STEEL RESEARCH , 2024 , 215 . |
| MLA | Wang, Ying et al. "Out-of-plane flexural behavior of assembled composite shear wall" . | JOURNAL OF CONSTRUCTIONAL STEEL RESEARCH 215 (2024) . |
| APA | Wang, Ying , Dong, Cuifen , Lai, Zhichao , Fang, Chenxi , Zuo, Junbo , Yang, Yuxing . Out-of-plane flexural behavior of assembled composite shear wall . | JOURNAL OF CONSTRUCTIONAL STEEL RESEARCH , 2024 , 215 . |
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Joints formed between double-skin concrete shear walls (DSCWs) and reinforced concrete (RC) foundations commonly utilize lap-spliced bars to transfer forces. However, the behavior and design of these critical connections have not been thoroughly investigated. This study experimentally analyzes a steel-reinforced DSCW-toRC foundation anchorage joint under monotonic uniaxial tension loading. Seven 1:3 scale specimens were tested to examine the effects of varying lap-spliced bar diameter, steel plate thickness, and stud bolt spacing. Crack propagation, load-displacement response, and reinforcement strain were measured. The results characterize two potential failure modes: ductile steel yielding and brittle stud shearing. Steel strains developed linearly up to yielding, demonstrating uniform transmission of tensile loads. Increased plate thickness and decreased stud spacing enhanced capacity. To mitigate sudden shear failures, the number and strength of studs must exceed the expected tensile demand. New design recommendations are proposed, including minimum stud bolt shear strength and the use of confining tie bars. This study provides an improved understanding of the behavior of DSCW-to-RC foundation lap-spliced connections, enabling resistance to axial demands while avoiding brittle failure modes. The experimental data will inform future analytical models and design provisions for these critical structural joints.
Keyword ：
Axial tension test Axial tension test Force transmission mechanism Force transmission mechanism Lap -spliced connection Lap -spliced connection
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| GB/T 7714 | Wang, Ying , Wei, Jinrui , Zuo, Junbo et al. The axial tensile performance of DSCW-RC joints with lap-spliced bars [J]. | STRUCTURES , 2024 , 62 . |
| MLA | Wang, Ying et al. "The axial tensile performance of DSCW-RC joints with lap-spliced bars" . | STRUCTURES 62 (2024) . |
| APA | Wang, Ying , Wei, Jinrui , Zuo, Junbo , Fang, Chenxi , Lai, Zhichao , Guan, Minsheng et al. The axial tensile performance of DSCW-RC joints with lap-spliced bars . | STRUCTURES , 2024 , 62 . |
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Concrete filled steel tubes (CFST) can fully utilize the advantages of both steel and concrete to achieve superior ductility and strength. Therefore, an increasing number of CFST members are used as truss chords in bridge construction in earthquake zones. However, due to concrete settlement, concrete shrinkage, and temperature shift during service life, spherical-cap gaps may exist inside CFST chords, which will have an unfavorable influence on the seismic behavior of the web-chord connections. In this study, the hysteretic behavior of steel tubular T-joint with concrete-filled bottom chord with spherical-cap gap is experimentally investigated. A total of 24 T-joint specimens were tested with the CFST chord under the constant tensile load and the steel tubular web subjected to cyclic bending. The main testing parameters included spherical-cap gap ratios, chord to web diameter ratios, and chord diameter to thickness ratios. Based on the test results, the failure modes, hysteretic response, load-carrying capacity, stiffness degradation, ductility and energy dissipation characteristics were investigated and analyzed. The effect of spherical-cap gap on the hysteretic behavior of CFST T-joints was compared and discussed. The outcome of this research is expected to provide reference to the evaluation of seismic safety of CFST truss structures.
Keyword ：
Concrete-filled chord Concrete-filled chord Ductility Ductility Hysteretic behavior Hysteretic behavior Spherical-cap gap Spherical-cap gap Steel tubular web-chord T-joint Steel tubular web-chord T-joint
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| GB/T 7714 | Yang, Yuxing , Lin, Jianguang , Liao, Feiyu et al. Hysteretic behavior of steel tubular web-concrete filled chord T-joints with spherical-cap gap under cyclic bending [J]. | STRUCTURES , 2024 , 65 . |
| MLA | Yang, Yuxing et al. "Hysteretic behavior of steel tubular web-concrete filled chord T-joints with spherical-cap gap under cyclic bending" . | STRUCTURES 65 (2024) . |
| APA | Yang, Yuxing , Lin, Jianguang , Liao, Feiyu , Chen, Yufeng , Lin, Xin , Wang, Ying . Hysteretic behavior of steel tubular web-concrete filled chord T-joints with spherical-cap gap under cyclic bending . | STRUCTURES , 2024 , 65 . |
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The flexural behavior of 12 ultra-high-performance concrete (UHPC) encased concrete-filled steel tubular (CFST) beams was experimentally investigated with steel fiber content. The influence of steel fiber content and CFST diameter on the general structural behavior, failure modes, stiffness, and flexural capacity were discussed. The test results showed that the outer UHPC can work in good coordination with the inner CFST, and steel fiber is effective in improving the overall flexural performance of UHPC encased CFST beams. The predictions of flexural stiffness by existing code provisions were compared with the test results. In addition, numerical analysis was conducted to benchmark test results, and to perform an in-depth analysis of the stress development and load distribution between UHPC, steel and core concrete. The applicability of existing equilibrium section method in predicting the flexural strength of UHPC encased CFST beams was then evaluated, and a reduction factor was proposed to calibrate the calculation results. © 2024 Institution of Structural Engineers
Keyword ：
Beam test Beam test Finite element analysis Finite element analysis Flexural strength Flexural strength Simplified model Simplified model Ultra-high-performance concrete encased concrete-filled steel tube Ultra-high-performance concrete encased concrete-filled steel tube
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| GB/T 7714 | Yang, Y. , Huang, X. , Liao, F. et al. Flexural behavior of ultra-high-performance concrete (UHPC) encased concrete-filled steel tubular (CFST) beams [J]. | Structures , 2024 , 69 . |
| MLA | Yang, Y. et al. "Flexural behavior of ultra-high-performance concrete (UHPC) encased concrete-filled steel tubular (CFST) beams" . | Structures 69 (2024) . |
| APA | Yang, Y. , Huang, X. , Liao, F. , Chen, Y. , Lin, Q. , Wang, Y. . Flexural behavior of ultra-high-performance concrete (UHPC) encased concrete-filled steel tubular (CFST) beams . | Structures , 2024 , 69 . |
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The double steel plate concrete composite shear wall (DSCW) structure combines the advantages of steel and concrete, offering high strength, stiffness, and durability. The joint formed by the DSCW and reinforced concrete foundation (RC foundation) was often unavoidable in engineering practice. Research related to the mechanical behavior of the DSCW-RC foundation is limited. This paper investigated the shear performance of DSCW-RC joints with lap-spliced steel bars. A total of seven specimens were designed and tested. The influences of steel plate thickness, steel bar arrangement, and stud spacing on the shear behavior of the joints are elucidated. The test results indicate that the predominant failure mode of the specimens occurred in the upper part of the local steel plate, with reinforcement yielding. While steel bar diameter and stud spacing minimally affected the shear strength, they significantly influenced the failure displacement at the joint interface. The failure deformation increased with increasing steel bar diameter and decreased with increasing stud spacing. Moreover, the thickness of the steel plate profoundly impacted structural shear strength and deformation, with both deformation and bearing capacity increasing with plate thickness. In addition, this study explores the force-transferring mechanism of such joints under shear load, offering a crucial reference for subsequent analyses of the composite force mechanism of DSCW - RC foundation joints. © 2024 Institution of Structural Engineers
Keyword ：
Bars (metal) Bars (metal) Foundations Foundations Fracture mechanics Fracture mechanics Shear strength Shear strength Shear stress Shear stress Steel research Steel research Studs (fasteners) Studs (fasteners) Studs (structural members) Studs (structural members)
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| GB/T 7714 | Wei, Jinrui , Wang, Ying , Wu, Youdong et al. The shear performance of DSCW-RC joints with lap-spliced steel bars [J]. | Structures , 2024 , 69 . |
| MLA | Wei, Jinrui et al. "The shear performance of DSCW-RC joints with lap-spliced steel bars" . | Structures 69 (2024) . |
| APA | Wei, Jinrui , Wang, Ying , Wu, Youdong , Huang, Yong , Yang, Yuxing . The shear performance of DSCW-RC joints with lap-spliced steel bars . | Structures , 2024 , 69 . |
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This paper investigates the axial compressive behavior of assembled composite wall (ACW) which consists of a double steel plate-concrete composite shear wall and two external concrete layers on both sides. 29 ACW specimens and 4 double steel plate-concrete composite shear wall (DSCW) specimens were tested under axial load. ACW demonstrates excellent axial compression performance, with its axial compressive strength and deformation abilities both being superior to DSCW. Test results indicate that: i) the ratio of shear connector spacing-to-plate thickness (s/t) has a significant influence on the axial compressive strength, failure mode and local buckling load of the specimens; ii) the external concrete layers can delay the local buckling of the steel plates and enhance the axial compressive strength of the composite shear wall. The impact of the external concrete layers on the axial compressive behavior of ACW is related to their arrangement form. Finally, three different codes were evaluated, the results show that EC4 and GB/T 51340-2018 calculation results match well with the test results. © 2024 Institution of Structural Engineers
Keyword ：
Buckling Buckling Buckling behavior Buckling behavior Buckling loads Buckling loads Buckling modes Buckling modes Compressive strength Compressive strength Local buckling Local buckling Shear stress Shear stress Shear walls Shear walls
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| GB/T 7714 | Lai, Zhichao , Shen, Yaning , Wang, Ying et al. Experimental study on axial compressive behavior of assembled composite shear wall [J]. | Structures , 2024 , 69 . |
| MLA | Lai, Zhichao et al. "Experimental study on axial compressive behavior of assembled composite shear wall" . | Structures 69 (2024) . |
| APA | Lai, Zhichao , Shen, Yaning , Wang, Ying , Fang, Chenxi , Guan, Minsheng , Yang, Yuxing . Experimental study on axial compressive behavior of assembled composite shear wall . | Structures , 2024 , 69 . |
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This study investigated the flexural performance of corrugated top flange steel-concrete composite beams in the negative moment region by tests and numerical analysis. A total of three static loading tests were conducted, including two specimens with corrugated top flange and one specimen with normal top flange. Test parameters were the type of the top flange and the longitudinal reinforcement ratio. The failure mode, crack pattern, and capacity of the specimens were discussed. The results showed that the failure mode of all three specimens was flexural failure. The capacity and ductility increased using the corrugated top flange, and the improvement in crack resistance by the corrugated top flange was much greater than reinforcement ratio. A calculation method for flexural capacity was proposed according to the tests and analysis. The calculated flexural capacity was in good agreement with the test results with a relative error of less than 10 %. The test results were also used for calibrate numerical models for further parametric study. It was found that the flexural capacity increased with increasing corrugation angle or decreasing the corrugation height, while the effect of corrugation height was higher on the structural performance. Data availability: Data will be made available on request © 2024 Institution of Structural Engineers
Keyword ：
Composite beam Composite beam Corrugated top flange Corrugated top flange Failure mechanism Failure mechanism Flexural capacity Flexural capacity Negative moment Negative moment
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| GB/T 7714 | Zhao, Q. , Xiao, F. , Zhang, H. et al. Flexural performance of corrugated top flange steel-concrete composite beams under the negative moment region [J]. | Structures , 2024 , 67 . |
| MLA | Zhao, Q. et al. "Flexural performance of corrugated top flange steel-concrete composite beams under the negative moment region" . | Structures 67 (2024) . |
| APA | Zhao, Q. , Xiao, F. , Zhang, H. , Fang, X. , Wang, Y. , Yang, Y. . Flexural performance of corrugated top flange steel-concrete composite beams under the negative moment region . | Structures , 2024 , 67 . |
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This study investigated the flexural behavior of prefabricated RC bridge decks with different joint materials, normal strength concrete or UHPC (normal strength concrete for RC deck, while UHPC means ultra-high performance concrete). A total of three specimens were tested and subjected to four-point bending loads. The load-deflection curve, strain curve, load-crack width curve, and failure mode were analyzed. Numerical models with cohesive models were built and verified with test results to explore the force-transferring mechanism. The results show that UHPC effectively improved the crack strength, flexural strength, and failure mode. Compared with the joint with normal-strength concrete, the crack strength and flexural strength increased by 66.7% and 6%, respectively. The failure mode of the specimen with UHPC as joint material changed from a concentrated cracking failure of the joint to a multi-crack development failure. The behavior of the specimen with UHPC as joint material was similar to the monolithically cast specimen. In addition, the application of the current design method was evaluated and compared with test results.
Keyword ：
flexural performance test flexural performance test joint material joint material numerical simulation numerical simulation prefabricated RC bridge deck prefabricated RC bridge deck
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| GB/T 7714 | Zhao, Xiaoming , Xiang, Wei , Yang, Yaofeng et al. Flexural Behavior of Prefabricated RC Bridge Deck with Different Joint Materials [J]. | BUILDINGS , 2023 , 13 (6) . |
| MLA | Zhao, Xiaoming et al. "Flexural Behavior of Prefabricated RC Bridge Deck with Different Joint Materials" . | BUILDINGS 13 . 6 (2023) . |
| APA | Zhao, Xiaoming , Xiang, Wei , Yang, Yaofeng , Wang, Ying , Tao, Jing , Huang, Jinju et al. Flexural Behavior of Prefabricated RC Bridge Deck with Different Joint Materials . | BUILDINGS , 2023 , 13 (6) . |
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