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学者姓名：曹万林
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Abstract ：
To promote the green development of urban buildings constructed with recycled materials, experimental and numerical studies were conducted on the flexural behavior of high-strength recycled aggregate concrete (HSRAC) slabs in this paper. Six full-scale one-way slabs, compromising of four HSRAC slabs and two high-strength natural aggregate concrete (HSNAC) slabs, were tested under one-way repeated loading. Impacts of varied parameters (steel trusses, concrete type, reinforcement ratio and slab thickness) on the flexural behavior were clarified. The test results indicated that arrangement of steel trusses can effectively limit the crack development and enhance the post-cracking stiffness by a maximum of 20 %. The flexural behavior was comprehensively improved including resistance, deformability, stiffness and restoration capacity as the reinforcement ratio increased by 51 %. Thicker slab (150 mm) performed better flexural resisting capacity (over 50 %) and service stiffness (over 70 %) at a cost of ductility loss. HSRAC slabs possessed comparable performance with the HSNAC counterpart, which is a strong affirmation for the promising application of such slabs. Practical finite element (FE) models were then established and verified with test results, and a detailed parametric study was also conducted to provide reference for designing additional important parameters. Finally, a database of 84 bending members was collected and a comparable analysis was carried out to verify the correctness of the tests with a reliability interval of 92 % and enrich the database. Relevant NAC design specifications were evaluated and proved available for safely and accurately predicting the flexural capacity and yield deflection of the proposed slabs, with a deviation range within 15 %.
Keyword ：
High strength concrete High strength concrete Recycled aggregate concrete slabs Recycled aggregate concrete slabs Flexural performance Flexural performance Finite element models Finite element models Steel trusses Steel trusses Comparable analysis Comparable analysis
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| GB/T 7714 | Zhu, Jian , Dong, Hongying , Cao, Wanlin et al. Flexural behavior of full-scale high-strength recycled aggregate concrete slabs reinforced with steel trusses under one-way repeated loading [J]. | STRUCTURES , 2025 , 73 . |
| MLA | Zhu, Jian et al. "Flexural behavior of full-scale high-strength recycled aggregate concrete slabs reinforced with steel trusses under one-way repeated loading" . | STRUCTURES 73 (2025) . |
| APA | Zhu, Jian , Dong, Hongying , Cao, Wanlin , Zhang, Jie . Flexural behavior of full-scale high-strength recycled aggregate concrete slabs reinforced with steel trusses under one-way repeated loading . | STRUCTURES , 2025 , 73 . |
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Abstract ：
The tailings microcrystalline foamed plate (TMF plate), produced from industrial waste tailings, has limited research regarding its use in high-performance building walls. Its brittleness under stress poses challenges. To improve its mechanical properties, a prefabricated light steel-tailings microcrystalline foamed plate composite wall (LS-TMF composite wall) has been proposed. This LS-TMF composite wall system integrates assembly, sustainability, insulation, and decorative functions, making it a promising market option. To study the in-plane performance of the composite wall, compression and seismic performance tests were conducted. The findings indicate that the light steel keel, steel bar, and TMF plate in the composite wall demonstrated good working performance. Strengthening the TMF plate enhanced the restraint on the light steel keel and improved the composite wall's compressive performance. Increasing the thickness of the light steel keel further improved the compressive stability. Under horizontal cyclic loading, failure occurred at the light steel keel embedding location. Increasing the strength of the TMF plate was beneficial for the seismic performance of the composite wall. This structural configuration-incorporating light steel keels, TMF plates, and fly ash blocks-enhanced thermal insulation and significantly improved in-plane stress performance. However, the splicing plate structure adversely affected the seismic performance of the composite wall.
Keyword ：
tailings microcrystalline foamed plate tailings microcrystalline foamed plate light steel keel light steel keel prefabricated composite wall prefabricated composite wall in-plane mechanical properties test in-plane mechanical properties test
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| GB/T 7714 | Bian, Jinliang , Cao, Wanlin , Chen, Jianwei et al. In-Plane Mechanical Properties Test of Prefabricated Composite Wall with Light Steel and Tailings Microcrystalline Foamed Plate [J]. | BUILDINGS , 2024 , 14 (10) . |
| MLA | Bian, Jinliang et al. "In-Plane Mechanical Properties Test of Prefabricated Composite Wall with Light Steel and Tailings Microcrystalline Foamed Plate" . | BUILDINGS 14 . 10 (2024) . |
| APA | Bian, Jinliang , Cao, Wanlin , Chen, Jianwei , Zhao, Lidong , Yu, Yuanyuan . In-Plane Mechanical Properties Test of Prefabricated Composite Wall with Light Steel and Tailings Microcrystalline Foamed Plate . | BUILDINGS , 2024 , 14 (10) . |
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Abstract ：
Experiments are conducted on five shear wall specimens of varying design and structural measures in order to investigate seismic behaviour of a composite shear wall with the steel reinforced concrete frame and an embedded perforated-steel plate. In addition, low-cyclic load is applied on test specimens that have a shear span ratio of 1.5. Using the experimental data, the bearing capacity, stiffness, ductility, hysteretic energy, and failure characteristics of five specimens are analysed. The results show that the composite shear wall (CSW) with the steel reinforced concrete frame (SRCF) and embedded steel plate (ESP) has higher bearing capacity, better ductility, slower degradation of stiffness, and higher energy dissipation capacity, as compared to an ordinary reinforced concrete shear wall. Moreover, its seismic behaviour can be improved by using the ESP of an appropriate thickness. For the ESPs of identical thickness, the results show that the specimen that uses steel ties exhibits better seismic behaviour than those using welding studs. Finally, a computing model that can calculate the bearing capacity of the CSWs is developed. A comparison of calculated and measured results shows that the results are close to each other.
Keyword ：
composite shear wall composite shear wall embedded steel plate embedded steel plate bearing capacity calculation bearing capacity calculation seismic behaviour seismic behaviour steel reinforced concrete frame steel reinforced concrete frame
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| GB/T 7714 | Zhou, Zhongyi , Cao, Wanlin , Liu, Yan et al. Seismic behaviour of composite shear wall with steel reinforced concrete frame and embedded perforated-steel plate [J]. | GRADEVINAR , 2022 , 74 (5) : 383-392 . |
| MLA | Zhou, Zhongyi et al. "Seismic behaviour of composite shear wall with steel reinforced concrete frame and embedded perforated-steel plate" . | GRADEVINAR 74 . 5 (2022) : 383-392 . |
| APA | Zhou, Zhongyi , Cao, Wanlin , Liu, Yan , Li, Jianhua . Seismic behaviour of composite shear wall with steel reinforced concrete frame and embedded perforated-steel plate . | GRADEVINAR , 2022 , 74 (5) , 383-392 . |
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Abstract ：
Circular concrete-filled steel tube (CFST) columns, which are widely used in high-rise and super high-rise buildings, have good mechanical performance. Low-cyclic loading tests were conducted on eight large-sized specimens with different shear-to-span ratios to investigate the seismic performance of circular CFST stub columns with different inner constructions (an internal circular steel tube, built-in partitions, vertical stiffeners, circumferential stiffeners, and a built-in reinforcement cage). The results show that built-in partitions coordinated the common deformation of the internal and external steel tubes, providing the specimen with the best seismic performance. By setting an internal circular steel tube in circular CFST stub columns, a significant confining effect on the core concrete was generated and the deformation of the external steel tube was well developed, which significantly improved the seismic performance of the specimens. Setting circumferential stiffeners had a significant confining effect on the radial deformation of the steel tube, and placing vertical stiffeners between the circumferential stiffeners had an obvious effect on preventing local buckling and improving the flexural capacity of the steel tube. The energy dissipation capacity of the specimens with different inner constructions was better when the shear-to-span ratio was smaller. A method for calculating the peak bearing capacity of such circular CFST stub columns is proposed, which can accurately predict the peak bearing capacity of the columns and provide a basis for the calculation of their application in practical engineering.
Keyword ：
Seismic behavior Seismic behavior Circular concrete-filled steel tube (CFST) stub Circular concrete-filled steel tube (CFST) stub columns columns Inner constructions Inner constructions Load-bearing capacity Load-bearing capacity Low-cyclic loading test Low-cyclic loading test
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| GB/T 7714 | Dong, Hongying , Liang, Xu , Cao, Wanlin et al. Cyclic behavior of circular CFST stub columns with different inner constructions [J]. | JOURNAL OF BUILDING ENGINEERING , 2022 , 53 . |
| MLA | Dong, Hongying et al. "Cyclic behavior of circular CFST stub columns with different inner constructions" . | JOURNAL OF BUILDING ENGINEERING 53 (2022) . |
| APA | Dong, Hongying , Liang, Xu , Cao, Wanlin , Zhao, Lidong , Zhang, Jianwei . Cyclic behavior of circular CFST stub columns with different inner constructions . | JOURNAL OF BUILDING ENGINEERING , 2022 , 53 . |
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Abstract ：
To improve the seismic performance of circular concrete-filled steel tube (CFST) columns with large dimensions, circumferential stiffeners, vertical stiffeners, and reinforcement cages were suggested to be set in the columns. Seven circular CFST column specimens with four internal constructions and two shear-span ratios were designed and tested under low-frequency cyclic loading. The failure modes, hysteretic behavior, bearing capacity, ductility, stiffness and strength degradation, energy dissipation capacity, and effect on the seismic performance based on different internal constructions and different shear-span ratios were herein discussed and clarified. The test results illustrated that the internal constructions could effectively postpone the local buckling of steel tube and improve the ultimate strength, ductility, and stiffness of circular CFST columns. A finite element (FE) model was developed to carry out the working mechanism and parametric analysis. Finally, a theoretical model to estimate the ultimate bearing capacity of CFST columns with different internal constructions was established, the results obtained from the model were in good agreement with the test results.
Keyword ：
FE analysis FE analysis Internal construction Internal construction Seismic performance Seismic performance Circular CFST columns Circular CFST columns Bearing capacity Bearing capacity Shear-span ratio Shear-span ratio
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| GB/T 7714 | Dong, Hongying , Qin, Jia , Cao, Wanlin et al. Seismic behavior of circular CFST columns with different internal constructions [J]. | ENGINEERING STRUCTURES , 2022 , 260 . |
| MLA | Dong, Hongying et al. "Seismic behavior of circular CFST columns with different internal constructions" . | ENGINEERING STRUCTURES 260 (2022) . |
| APA | Dong, Hongying , Qin, Jia , Cao, Wanlin , Zhao, Lidong . Seismic behavior of circular CFST columns with different internal constructions . | ENGINEERING STRUCTURES , 2022 , 260 . |
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Abstract ：
To meet the requirements of practical engineering, mega steel-reinforced concrete (SRC) columns have been used in super high-rise buildings in recent years. Previous studies on SRC columns primarily focused on simple H-shaped and cruciform steel sections; insufficient attention was paid to mega columns, which are frequently designed with complex steel sections and high-strength concrete. In this study, four 1/6 scaled mega steel-reinforced high-strength concrete (SRHC) rectangular columns with cross-sectional dimensions of 700 mm x 565 mm and various steel ratios and concrete strengths were tested under one-way repeated compression to examine the damage evolution, load-axial deformation response, axial bearing capacity, ductility, stiffness degradation, strain development, restoration, and energy dissipation capacity. The test results indicated that increasing the steel ratio effectively alleviated crack widening and concrete spalling and advanced the bearing capacity, ductility, stiffness, restoration, and energy dissipation capacity. With an increase in concrete strength, the peak load, stiffness, restoration capacity in the elastic-plastic stage, and the energy dissipation capacity in the elastic stage improved, whereas the ductility was sharply impaired, resulting in more abrupt damage. Three provisions were examined to calculate the bearing capacity with conservative estimation. Hence, a theoretical model considering the confinement from the stirrups and steel sections was presented to predict the axial strength with a desirable accuracy. Furthermore, a finite element model was developed to perform the damage evolution and parametric study.
Keyword ：
High -strength concrete High -strength concrete Theoretical model Theoretical model Axial compressive performance Axial compressive performance Finite element model Finite element model Mega steel -reinforced concrete columns Mega steel -reinforced concrete columns
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| GB/T 7714 | Dong, Hongying , Zhu, Jian , Cao, Wanlin et al. Structural behavior of mega steel-reinforced high-strength concrete rectangular columns under axial compression [J]. | JOURNAL OF BUILDING ENGINEERING , 2022 , 61 . |
| MLA | Dong, Hongying et al. "Structural behavior of mega steel-reinforced high-strength concrete rectangular columns under axial compression" . | JOURNAL OF BUILDING ENGINEERING 61 (2022) . |
| APA | Dong, Hongying , Zhu, Jian , Cao, Wanlin , Rao, Yixuan , Liu, Yibin . Structural behavior of mega steel-reinforced high-strength concrete rectangular columns under axial compression . | JOURNAL OF BUILDING ENGINEERING , 2022 , 61 . |
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Abstract ：
With the need for well precast shear walls (PSWs), ensuring sufficient connection joints between precast and castin-place components has become challenging. An innovative grouted joint with button-head bars and a PSW with boundary elements using this joint, called a precast single-row reinforced concrete wall, were proposed in this study. Quasi-static cyclic loading tests of four specimens, including three PSWs and one cast-in-place shear wall (CSW), were carried out, which emphasized verifying the reliability of the grouted joint and PSWs and analyzing the effect of different axial compression ratios and distributions of grouted joints on the seismic performance of this PSW. The bond strength between the button-head bar and grouting and between the grouting and precast components was tested. Additionally, mechanical characteristics in terms of failure characteristics, hysteretic properties, stiffness degradation, energy dissipation, and reinforcement strain were investigated. The theoretical predicted bearing capacity of the PSW containing flexural and shear capacities and the shear strength of the connection interface using different codes was calculated. The results show that the grouted joints with buttonhead bars in this paper had satisfactory bond strength of the interface between different materials and provided adequate strength and stiffness for PSW to prevent connection interface failure early. The PSW had approximately the same hysteresis behaviors as the CSW. The reliable connection method and the cast-in-place concealed column effectively limiting the horizontal wall-foundation slippage, although cracks along the construction joints between the precast members occurred. With the increase in the axial compression ratio, the bearing capacity and cumulative energy dissipation of PSW are improved due to the growth of the area of the concrete compression zone. Reasonable design of the arrangement of the grouted joints was conducive to ductility of the wall and force distribution over the cross-section. The current codes for calculating the CSW reliably predicted the bearing capacity and failure mode of the PSW.
Keyword ：
Seismic performance Seismic performance Precast shear wall Precast shear wall Single-row reinforcements Single-row reinforcements Recycled concrete Recycled concrete Grouted joint with button-head bar Grouted joint with button-head bar
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| GB/T 7714 | Dong, Hongying , Li, Yanna , Cao, Wanlin et al. Seismic performance of precast single-row reinforced concrete shear walls connected by grouted joints with button-head bars [J]. | STRUCTURES , 2022 , 41 : 1655-1671 . |
| MLA | Dong, Hongying et al. "Seismic performance of precast single-row reinforced concrete shear walls connected by grouted joints with button-head bars" . | STRUCTURES 41 (2022) : 1655-1671 . |
| APA | Dong, Hongying , Li, Yanna , Cao, Wanlin , Qin, Chengjie , Liu, Chengwei , Wu, Dingyan . Seismic performance of precast single-row reinforced concrete shear walls connected by grouted joints with button-head bars . | STRUCTURES , 2022 , 41 , 1655-1671 . |
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Abstract ：
This paper proposes a new prefabricated concrete filled steel tube-bordered monolayer reinforced shear wall structure, which is composed of concrete filled steel tube borders and reinforced concrete wallboard. The shear wall can be assembled conveniently by connecting with the beams of the main frame via high-strength bolts, and it can resist horizontal earthquake forces with the frame. Six shear wall specimens were designed and tested under lateral cyclic loads. The effects of the axial compression ratio and rebar support on the seismic performance were analyzed. The test results indicated that the concrete filled steel tube borders and the concrete wallboard work well with each other. The peak load of each specimen increased with increasing axial compression ratio. With rebar support in the wallboard, the peak load, initial stiffness and energy dissipation capacity of the specimens increased. In addition, the deformation capacity of the proposed shear wall structure can meet the requirement of the elastic–plastic interstory drift ratio (1/100) of seismic design in practical engineering. A finite element method analysis was conducted, and the simulation results showed good agreement with the test results. Finally, based on the test and finite element simulation results, a calculation model of the normal section was proposed to predict the bearing capacity of the structures, which was verified by the small errors with calculation results. © 2022 Elsevier Ltd
Keyword ：
Axial compression ratio; Concrete filled steel tube; Prefabricated shear wall; Rebar support; Seismic performance Axial compression ratio; Concrete filled steel tube; Prefabricated shear wall; Rebar support; Seismic performance
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| GB/T 7714 | Yin, F. , Cao, W.-L. , Wang, R.-W. et al. Seismic behavior of prefabricated concrete filled steel tube-bordered monolayer reinforced shear wall [J]. | Journal of Constructional Steel Research , 2022 , 194 . |
| MLA | Yin, F. et al. "Seismic behavior of prefabricated concrete filled steel tube-bordered monolayer reinforced shear wall" . | Journal of Constructional Steel Research 194 (2022) . |
| APA | Yin, F. , Cao, W.-L. , Wang, R.-W. , Weng, H.-F. , Liu, Y.-B. . Seismic behavior of prefabricated concrete filled steel tube-bordered monolayer reinforced shear wall . | Journal of Constructional Steel Research , 2022 , 194 . |
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Abstract ：
An innovative square steel tube confined rubberized concrete column is proposed in this study to alleviate the pollution from waste rubber and improve the mechanical properties of conventional concrete. The axial compressive behavior of square steel tube confined rubberized concrete (RuSTCC) stub column is experimentally studied. A total of thirty-two specimens, including four square steel tube confined concrete (STCC) stub columns and twenty-eight Ru-STCC stub columns, were fabricated and tested. The variables included rubber particle volume replacement ratio, steel tube thickness, rubber particle size and concrete strength grade. The failure mode, axial ultimate compressive strength, rigidity, ductility, strain characteristics, and confinement effects were analyzed. The results show that the failure modes of Ru-STCC specimens were the core concrete shear failure and steel tube buckling. Ultimate axial compressive strength and rigidity were found inversely proportional to the volume replacement ratio, When the volume replacement ratio reached 20%, the ultimate axial compressive strength and rigidity reduced by more than 20%. With the increase of steel tube thickness, the ultimate axial compressive strength increased by more than 10%. Concrete strength grade and rubber particle size have significant effects on rigidity and ductility, respectively. In addition, the differences between square concrete-filled in steel tube (CFST), rubberized concrete-filled in steel tube (Ru-CFST), STCC, and Ru-STCC stub columns were discussed by compressive strength and deformation capacity. The axial ultimate compressive strength of square Ru-STCC specimens was evaluated using various calculation models. The simplified formulae for the prediction of axial ultimate compressive strength were also presented.
Keyword ：
Steel tube confined concrete stub columns Steel tube confined concrete stub columns Rubberized concrete Rubberized concrete Ultimate axial compression Strength Ultimate axial compression Strength Square steel tube Square steel tube Axial compressive behavior Axial compressive behavior
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| GB/T 7714 | Yang Zhaoyuan , Qiao Qiyun , Cao Wanlin et al. Axial compressive behavior of square steel tube confined rubberized concrete stub columns [J]. | JOURNAL OF BUILDING ENGINEERING , 2022 , 52 . |
| MLA | Yang Zhaoyuan et al. "Axial compressive behavior of square steel tube confined rubberized concrete stub columns" . | JOURNAL OF BUILDING ENGINEERING 52 (2022) . |
| APA | Yang Zhaoyuan , Qiao Qiyun , Cao Wanlin , Gao Xiaopeng . Axial compressive behavior of square steel tube confined rubberized concrete stub columns . | JOURNAL OF BUILDING ENGINEERING , 2022 , 52 . |
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Abstract ：
A prefabricated structure composed of a lightweight concrete filled steel tube (CFST) frame and an embedded steel plate (ESP) composite wall is proposed, known as a CFST frame-ESP composite wall. To study the seismic performance of the prefabricated structure, low reversed cyclic loading tests of six full-scale specimens were performed, including five CFST frame-ESP composite walls with different wall details and one bare frame. The failure characteristics, hysteretic characteristics, bearing capacity, stiffness degradation, and energy dissipation capacity of the specimens were compared, and a simplified model was used for the ESP composite wall. Based on OpenSees finite element software, finite element simulation and parameter analysis were performed using a simplified model. The calculated results agree well with the experimental results. The results show that the ESP composite wall can improve the bearing capacity, initial stiffness, and energy dissipation capacity of the CFST frame significantly. The use of a rebar brace decreased the concrete damage and increased the ultimate bearing capacity, initial stiffness, and energy dissipation capacity of the ESP composite wall. The mechanical characteristics of the EPS composite wall is considered in the simplified model. The modeling method presented herein can be used to analyze the abovementioned type of structure.
Keyword ：
Experimental study Experimental study Numerical simulation Numerical simulation Embedded steel plate composite wall Embedded steel plate composite wall Lightweight CFST frame Lightweight CFST frame Prefabricated structure Prefabricated structure
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| GB/T 7714 | Bian, Jinliang , Cao, Wanlin , Qiao, Qiyun et al. Experimental and numerical studies of prefabricated structures using CFST frame and composite wall [J]. | JOURNAL OF BUILDING ENGINEERING , 2022 , 48 . |
| MLA | Bian, Jinliang et al. "Experimental and numerical studies of prefabricated structures using CFST frame and composite wall" . | JOURNAL OF BUILDING ENGINEERING 48 (2022) . |
| APA | Bian, Jinliang , Cao, Wanlin , Qiao, Qiyun , Zhang, Jianwei . Experimental and numerical studies of prefabricated structures using CFST frame and composite wall . | JOURNAL OF BUILDING ENGINEERING , 2022 , 48 . |
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