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学者姓名：李雄彦
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摘要 ：
The LED display, i.e., the center-hung scoreboard, nowadays has become an indispensable display device in large stadiums, and some of which with weight is more than 30t. To investigate the influence of center-hung scoreboard load on the dynamic characteristics of the suspend-dome structure, a 1:20 dynamically scaled model of the Lanzhou Olympic Sports Complex was designed, considering different lifting-lowering heights of the center-hung scoreboard by changing the sling length. Shaking table dynamic characteristics experiment was conducted by using the white noise excitation method for the suspend-dome structure with the sling lengths of 200 mm, 400 mm, and 600 mm individually. The change rule of dynamic characteristic pa-rameters such as natural frequencies and damping ratios was concluded by the Hilbert-Huang Transformation method for modal identification and the transfer function method for checking. With the increase of sling length, the natural frequencies of the center-hung scoreboard become smaller, and the damping ratios become more extensive. Compared with the results of the scaled model without a center-hung scoreboard, the high-order natural frequencies and damping ratios of the overall structure with the center-hung scoreboard are significantly increased, and the coupling effect between the center-hung scoreboard and the structure should not be ignored in the dynamic analysis. The test values were compared with the simulation results of Abaqus as well. It is shown that the test values of the scaled model are essentially consistent with the simulation results, which indicates that the test points are reasonably arranged, the test method is correct, and the finite element modeling method is accurate. The effects of sling stiffness and sling length on the dynamic characteristics of the suspend-dome structure were studied by Abaqus software. The results show that the sling stiffness hardly affect the dynamic characteristics of the overall model. When the sling length is less than 300 mm, the lifting-lowering of the center-hung scoreboard influences the distribution of the natural frequency and the vibration mode of the overall structure. In this range, the lifting-lowering of the center-hung scoreboard should be focused on actual engineering.
关键词 ：
Center-hung scoreboard Center-hung scoreboard Sling stiffness Sling stiffness Suspend-dome structure Suspend-dome structure Dynamic characteristics experiment Dynamic characteristics experiment Sling length Sling length
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| GB/T 7714 | Xue, Suduo , Lu, Zhen , Li, Xiongyan et al. Experimental and numerical investigations on the influence of center-hung scoreboard on dynamic characteristics of suspend-dome structure [J]. | JOURNAL OF BUILDING ENGINEERING , 2022 , 57 . |
| MLA | Xue, Suduo et al. "Experimental and numerical investigations on the influence of center-hung scoreboard on dynamic characteristics of suspend-dome structure" . | JOURNAL OF BUILDING ENGINEERING 57 (2022) . |
| APA | Xue, Suduo , Lu, Zhen , Li, Xiongyan , Liu, Renjie , Zhao, Zetao , Jing, Hui et al. Experimental and numerical investigations on the influence of center-hung scoreboard on dynamic characteristics of suspend-dome structure . | JOURNAL OF BUILDING ENGINEERING , 2022 , 57 . |
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摘要 ：
A new type of cable-strut tension structure named Annular Crossed Cable-truss Structure(ACCTS) comprises a series of planar cable-truss frames crossed each other. To investigate the force mechanism of ACCTS, a cable-truss frame model with 2-bar and 6-cable has been developed, and its initial stiffness formula has been derived as well. The model is further simplified to make it is upper and lower vector heights equal, a nd then the initial stiffness formula and the critical slack load formula are further deduced. Based on ANSYS software and cable-truss frame with a span of 60m, the influences of the number of struts and position of jumped layout on the cable-truss frame are studied. According to the former 60m span cabletruss frame's research results, the jumped layout of ACCTS with a span of 100m is studied. The static and dynamic performances of two schemes, the optimal jumped layout scheme and the original scheme, are systematically studied. It is shown that the number of struts would be about 6 similar to 8 for the planar cable-truss frame and the optimal order of jumped layout is strut 6-7 -> strut 4-5 -> strut 2-3. The optimal order of jumped layout of ACCTS agrees with that of the cable-truss frame, verifying the feasibility of conclusions. In the condition of no variati on in the original structure's static and dynamic performance, the optimal scheme of the jumped layout will lower the steel consumption and enhance the buckling loads. Moreover, it also simplifies structure for easy construction. Copyright (C) 2021 by The Hong Kong Institute of Steel Construction. All rights reserved.
关键词 ：
Annular Crossed Cable-truss structure (ACCTS) Annular Crossed Cable-truss structure (ACCTS) Force mechanism Force mechanism Jumped layout Jumped layout Planar cable-truss frame Planar cable-truss frame Static and dynamic performance Static and dynamic performance
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| GB/T 7714 | Lu, Jian , Li, Xiong-Yan , Xue, Su-Duo et al. STUDY ON FORCE MECHANISM OF CABLE-TRUSS FRAME AND JUMPED LAYOUT OF ANNULAR CROSSED CABLE-TRUSS STRUCTURE [J]. | ADVANCED STEEL CONSTRUCTION , 2021 , 17 (3) : 243-252 . |
| MLA | Lu, Jian et al. "STUDY ON FORCE MECHANISM OF CABLE-TRUSS FRAME AND JUMPED LAYOUT OF ANNULAR CROSSED CABLE-TRUSS STRUCTURE" . | ADVANCED STEEL CONSTRUCTION 17 . 3 (2021) : 243-252 . |
| APA | Lu, Jian , Li, Xiong-Yan , Xue, Su-Duo , Liu, Ren-Jie , Dezhkam, Majid . STUDY ON FORCE MECHANISM OF CABLE-TRUSS FRAME AND JUMPED LAYOUT OF ANNULAR CROSSED CABLE-TRUSS STRUCTURE . | ADVANCED STEEL CONSTRUCTION , 2021 , 17 (3) , 243-252 . |
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摘要 ：
Based on Annular Crossed Cable-truss Structure(ACCTS) model with diameter of 17.15m,the type of membrane roof was firstly studied. Two schemes of membrane roofs, cable-supported membrane roof and skeleton supported membrane roof, were proposed. The form-finding analysis of two types of membrane roof structure was carried out. By comparative study, the strengths and weaknesses of two schemes were given, and the feasibility of skeleton membrane roof was demonstrated. Secondly, skeleton membrane roof was studied by collaborative form-finding and non-collaborative form-finding. The form-finding method being suitable for the structure was given. Finally, load analysis of membrane and non-membrane roof structure were carried out. The results showed skeleton membrane roof had strength to resist to external loads. The studied content has promoted the application of annular crossed cable-truss structure in practical engineering.
关键词 ：
Annular Crossed Cable-truss Structure (ACCTS) Annular Crossed Cable-truss Structure (ACCTS) film-covering effects film-covering effects form-finding form-finding load analysis load analysis membrane roof membrane roof parametric analysis parametric analysis
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| GB/T 7714 | Xue, Suduo , Lu, Jian , Li, Xiongyan et al. Study on Membrane Roof Schemes of Annular Crossed Cable-truss Structure [C] . 2019 : 1712-1719 . |
| MLA | Xue, Suduo et al. "Study on Membrane Roof Schemes of Annular Crossed Cable-truss Structure" . (2019) : 1712-1719 . |
| APA | Xue, Suduo , Lu, Jian , Li, Xiongyan , Liu, Renjie . Study on Membrane Roof Schemes of Annular Crossed Cable-truss Structure . (2019) : 1712-1719 . |
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摘要 ：
The long-span spatial structure is flexible, and the damping ratio of the structure is relatively strong under horizontal and vertical earthquakes, and the uplift force exists at the support. To satisfy the application of seismic isolation of such buildings, the paper proposes an anti-uplift three-dimensional bearing. The bearing is composed of a high damping rubber bearing and an upper disc spring device in series. The horizontal and vertical mechanical properties of the test were studied. In the horizontal direction, the test focuses on the hysteretic behavior of the bearing under simple harmonic excitation, and investigates the influence of shear strain and loading frequency on its horizontal mechanical properties. In the vertical direction, the equivalent stiffness and equivalent damping ratio of the bearing were tested as well. Experimental research was carried out to investigate the effects of different loading amplitudes and different loading frequencies on their vertical hysteresis performance. The results show that the composite isolation bearing has good hysteresis performance in both horizontal and vertical directions. The horizontal equivalent damping ratio is between 12.48% and 14.77%, which decreases with the increase of shear strain, it increases with the loading frequency: the vertical equivalent damping ratio is from 6.67% to 17.76%, vertical loading frequency makes minor effect on it.
关键词 ：
equivalent damping ratio equivalent damping ratio equivalent stiffness equivalent stiffness Hysteresis test Hysteresis test three-dimensional seismic isolation three-dimensional seismic isolation
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| GB/T 7714 | Li, Xiongyan , Liang, Shuanzhu , Xue, Suduo . Experimental research on anti-uplift three-dimensional seismic isolation bearing [C] . 2019 : 2432-2439 . |
| MLA | Li, Xiongyan et al. "Experimental research on anti-uplift three-dimensional seismic isolation bearing" . (2019) : 2432-2439 . |
| APA | Li, Xiongyan , Liang, Shuanzhu , Xue, Suduo . Experimental research on anti-uplift three-dimensional seismic isolation bearing . (2019) : 2432-2439 . |
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摘要 ：
Early-age heat-induced cracking is a potentially fatal problem for critical concrete structures such as liquefied natural gas storage tanks. This paper reports on a novel automatic air-cooling system designed to solve the problem. The system was designed following a series of air-cooling experiments in China on concrete walls during the first 72 h after casting. An air velocity of approximately 12 m/s appears to provide effective cracking control for ambient air temperatures up to 30 degrees C, while the optimal cooling segment length was found to be approximately 14 m. The paper aims to provide a reference for the application of air cooling for any large-scale concrete structures at risk of early-age cracking.
关键词 ：
thermal effects thermal effects field testing & monitoring field testing & monitoring concrete technology & manufacture concrete technology & manufacture
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| GB/T 7714 | Li, Xiongyan , Geng, Yan , Xue, Suduo et al. Automatic air-cooling system for early-age crack control in concrete [J]. | PROCEEDINGS OF THE INSTITUTION OF CIVIL ENGINEERS-CIVIL ENGINEERING , 2019 , 172 (5) : 58-64 . |
| MLA | Li, Xiongyan et al. "Automatic air-cooling system for early-age crack control in concrete" . | PROCEEDINGS OF THE INSTITUTION OF CIVIL ENGINEERS-CIVIL ENGINEERING 172 . 5 (2019) : 58-64 . |
| APA | Li, Xiongyan , Geng, Yan , Xue, Suduo , Li, Jinguang , Song, Yanjie , Kang, Guangbo . Automatic air-cooling system for early-age crack control in concrete . | PROCEEDINGS OF THE INSTITUTION OF CIVIL ENGINEERS-CIVIL ENGINEERING , 2019 , 172 (5) , 58-64 . |
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摘要 ：
Threaded-sleeve connection (TSC) is a new type of semi-rigid connection for spatial grid structures. In this paper, bending behaviour of the TSC was analyzed and a mathematical model for prediction of moment-rotation behaviour was proposed. Firstly, experiments were conducted to investigate the bending performance and damage form of the TSC. The moment-rotation curves of the specimens were obtained as well. Then, solid finite element model was established through ANSYS. Comparing the theoretical analysis and experiments, it was observed that the numerical results agreed well with the experimental data, which indicates the feasibility of the finite element analysis method. Finally, the calculation formul as of the initial moment and the initial rotation of the TSC were obtained through MATLAB curve fitting. The shape parameter n was determined. Based on the Kishi-Chen power model, the moment-rotation model of the TSC was developed. Therefore, it will be possible to take into account semi-rigid analysis for a spatial grid structure with TSC easily and find the more actual behaviour of the structure. Copyright (c) 2019 by The Hong Kong Institute of Steel Construction. All rights reserved.
关键词 ：
Finite element simulation Finite element simulation Mathematical model Mathematical model Experimental test Experimental test Semi-rigid behaviour Semi-rigid behaviour Spatial grid structure Spatial grid structure Thread-sleeve connection Thread-sleeve connection
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| GB/T 7714 | Xue, Su-duo , Li, Si-yao , Li, Xiong-yan et al. BEHAVIOUR AND MATHEMATICAL MODEL FOR SEMI-RIGID THREADED-SLEEVE CONNECTION [J]. | ADVANCED STEEL CONSTRUCTION , 2019 , 15 (2) : 123-128 . |
| MLA | Xue, Su-duo et al. "BEHAVIOUR AND MATHEMATICAL MODEL FOR SEMI-RIGID THREADED-SLEEVE CONNECTION" . | ADVANCED STEEL CONSTRUCTION 15 . 2 (2019) : 123-128 . |
| APA | Xue, Su-duo , Li, Si-yao , Li, Xiong-yan , Yao, Chen . BEHAVIOUR AND MATHEMATICAL MODEL FOR SEMI-RIGID THREADED-SLEEVE CONNECTION . | ADVANCED STEEL CONSTRUCTION , 2019 , 15 (2) , 123-128 . |
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摘要 ：
Air pipe cooling is an emerging technique in dealing with the hydration heat and thermal induced cracking of massive concrete structures. In order to investigate the influence of air pipe cooling on temperature distribution in large-dimension concrete walls, in situ experiments of heat transfer coefficient for internal forced convection were conducted on one experimental wall of 3.6 m x 3.6 m x 0.8 m in dimension with properly embedded corrugated pipes. The relationship between average inlet air velocity and average heat transfer coefficient for internal forced convection was then obtained and fitted to a proposed formula. In addition, air cooling experiments were performed on another three experimental walls to monitor the temperature variations of internal concrete. Meanwhile, finite element (FE) thermal analysis with the proposed formula was carried out and compared with the results of air cooling experiments to verify the accuracy of the proposed FE method. As the comparison results show, the calculated temperature curves are in good agreement with the tested data, with an average deviation of 0.07 degrees C, 0.13 degrees C and 0.19 degrees C under average inlet velocity of 3.78 m/s, 8.12 m/s and 11.64 m/s, respectively. It indicates that the FE analysis with the proposed heat transfer coefficient formula for internal forced convection is effective in estimating concrete temperature variations, providing a reliable fundamental approach for further thermo-mechanical coupling analysis and ventilation design in practical engineering projects. (C) 2018 Elsevier Ltd. All rights reserved.
关键词 ：
Hydration heat Hydration heat Air pipe cooling Air pipe cooling Finite-element thermal analysis Finite-element thermal analysis Large-dimension RC walls Large-dimension RC walls
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| GB/T 7714 | Geng, Yan , Li, Xiongyan , Xue, Suduo et al. Experimental and theoretical internal forced convection investigation on air pipe cooling of large-dimension RC walls [J]. | CONSTRUCTION AND BUILDING MATERIALS , 2019 , 194 : 161-170 . |
| MLA | Geng, Yan et al. "Experimental and theoretical internal forced convection investigation on air pipe cooling of large-dimension RC walls" . | CONSTRUCTION AND BUILDING MATERIALS 194 (2019) : 161-170 . |
| APA | Geng, Yan , Li, Xiongyan , Xue, Suduo , Li, Jinguang , Song, Yanjie . Experimental and theoretical internal forced convection investigation on air pipe cooling of large-dimension RC walls . | CONSTRUCTION AND BUILDING MATERIALS , 2019 , 194 , 161-170 . |
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摘要 ：
Hydration heat and thermal induced cracking have always been a fatal problem for massive concrete structures. In order to study a massive reinforced concrete wall of a storage tank for liquefied natural gas (LNG) during its construction, two mock-ups of 0.8 mx0.8 mx0.8 m without and with metal corrugated pipes were designed based on the actual wall construction plan. Temperature distribution and strain development of both mock-ups were measured and compared inside and on the surface of them. Meanwhile, time-dependent thermal and mechanical properties of the concrete were tested standardly and introduced into the finite-element (FL) software with a proposed hydration degree model. According to the comparison results, the FL simulation of temperature field agreed well with the measured data. Besides, the maximum temperature rise was slightly higher and the shrinkage was generally larger in the mock-up without pipes, indicating that corrugated pipes could reduce concrete temperature and decrease shrinkage of surrounding concrete. In addition, the cooling rate decreased approximately linearly with the reduction of heat transfer coefficient h, implying that a target cooling curve can be achieved by calculating a desired coefficient h. Moreover, the maximum cooling rate did not necessarily decrease with the extension of demoulding time. It is better to remove the formwork at least after 116 hours after concrete casting, which promises lower risk of thermal cracking of early-age concrete.
关键词 ：
strain monitoring strain monitoring LNG storage tank LNG storage tank finite-element simulation finite-element simulation hydration degree hydration degree time-dependent thermal property time-dependent thermal property reinforced concrete reinforced concrete thermal analysis thermal analysis
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| GB/T 7714 | Geng, Yan , Li, Xiongyan , Xue, Suduo et al. Early-age thermal analysis and strain monitoring of massive concrete structures [J]. | COMPUTERS AND CONCRETE , 2018 , 21 (3) : 279-289 . |
| MLA | Geng, Yan et al. "Early-age thermal analysis and strain monitoring of massive concrete structures" . | COMPUTERS AND CONCRETE 21 . 3 (2018) : 279-289 . |
| APA | Geng, Yan , Li, Xiongyan , Xue, Suduo , Li, Jinguang , Song, Yanjie . Early-age thermal analysis and strain monitoring of massive concrete structures . | COMPUTERS AND CONCRETE , 2018 , 21 (3) , 279-289 . |
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摘要 ：
The Annular Crossed Cable-Truss Structure (ACCTS) is a new type of Tensile Spatial Structure with a configuration suitable to cover large-span stadiums. Its configuration has potential to perform well in resisting disproportionate collapse. However, its disproportionate collapse resistance hasn't yet been analyzed in depth. In this study, numerical and experimental research was carried out to investigate the performance of ACCTS under cable rupture. The numerical analysis was done for ten cable-rupture plans using LS-DYNA (explicit method) and the experimental test on an ACCTS with a diameter of 17.15 m was performed for three cable-rupture plans. It is concluded that, while deflections increase with the number of removed cables, an ACCTS does not undergo a disproportionate collapse and it provides a promising structural concept for tensile spatial structures.
关键词 ：
disproportionate collapse disproportionate collapse annular tensile cable-truss structure annular tensile cable-truss structure tensile spatial structure tensile spatial structure
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| GB/T 7714 | Liu, Renjie , Li, Xiongyan , Xue, Suduo et al. Numerical and experimental research on annular crossed cable-truss structure under cable rupture [J]. | EARTHQUAKE ENGINEERING AND ENGINEERING VIBRATION , 2017 , 16 (3) : 557-569 . |
| MLA | Liu, Renjie et al. "Numerical and experimental research on annular crossed cable-truss structure under cable rupture" . | EARTHQUAKE ENGINEERING AND ENGINEERING VIBRATION 16 . 3 (2017) : 557-569 . |
| APA | Liu, Renjie , Li, Xiongyan , Xue, Suduo , Mollaert, Marijke , Ye, Jihong . Numerical and experimental research on annular crossed cable-truss structure under cable rupture . | EARTHQUAKE ENGINEERING AND ENGINEERING VIBRATION , 2017 , 16 (3) , 557-569 . |
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摘要 ：
The threaded-sleeve connection (TSC) is a new type of connection for grid structure, of which the key part situates at the threaded extended end. The simulation models of TSC were established and compared by ANSYS. The compression mechanical property and stress distribution were analyzed firstly. The performance of compression and eccentric compression were tested through experiments. The simulation results were compared with test data to verify the correctness of the FE model. Based on the simulation and experimental results, the theoretical formulas of compression capacity and stiffness of the extended end were developed. It is illustrated that the capacity of TSC under compression is about 63.2% of that of the pipe with same material, diameter and wall thickness. When subjected to large eccentricity, the capacity of TSC decreases to about 83.9% of the axial compressive capacity. The failure form of the specimens under compression or eccentric compression is the buckling of the extended threads. The simulation results agree well with the test results, which illustrates the effectiveness of the FE method, and the theoretical results are also in good agreement with the test data. The TSC shares good compression performance, and the most weakness area exists in the extended part of the threads, the buckling of which will lead to the failure of the connection. © 2016, Editorial Board of Journal of Harbin Institute of Technology. All right reserved.
关键词 ：
Experiments Experiments Finite element method Finite element method Engineering Engineering Mathematical models Mathematical models
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| GB/T 7714 | Li, Siyao , Li, Xiongyan , Xue, Suduo et al. Compression performance of threaded-sleeve connection [J]. | Journal of Harbin Institute of Technology , 2016 , 48 (12) : 62-69 . |
| MLA | Li, Siyao et al. "Compression performance of threaded-sleeve connection" . | Journal of Harbin Institute of Technology 48 . 12 (2016) : 62-69 . |
| APA | Li, Siyao , Li, Xiongyan , Xue, Suduo , Ye, Jihong . Compression performance of threaded-sleeve connection . | Journal of Harbin Institute of Technology , 2016 , 48 (12) , 62-69 . |
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