The Experts below are selected from a list of 159 Experts worldwide ranked by ideXlab platform
Yi Yi Zhou - One of the best experts on this subject based on the ideXlab platform.
-
Determination of a Monitoring Scheme for Controlling Construction Errors of a Cable-strut Tensile Structure
Ksce Journal of Civil Engineering, 2018Co-Authors: Lian-meng Chen, Yi Yi Zhou, Dong Hu, Fu-bo Zhang, Shilin DongAbstract:Construction errors are inevitable in real cable-strut Tensile Structures. Nevertheless, the relevant work, especially the monitoring scheme design work, to control the construction errors is lacking. At present, the monitoring schemes always lay out the monitored members in the places with great internal force or great deformation, do not consider the method to control the construction errors and do not explain the method to lay out the monitored members in fundamental theory. To address this situation, the element length error, which is an important construction error affecting the bearing performance, is considered as the factor variable and the fundamental equation of pre-stress deviation and element length error is derived firstly. Next the methods to express the pre-stress deviation, which are only derived from the active cable length errors or from both the active cable and passive cable length errors, are discussed. After that, based on the condition that the errors can be solved and compensated, the least number of monitored members is determined. Moreover, those members sensitive to cable length deviation of active cables are selected as monitored members. In order to evaluate the effect level caused by passive cable length deviation, two evaluation parameters Δ and ρ are further discussed. Finally, one cable-strut Tensile Structure example is employed to verify the proposed method and the results of the example studies indicate that the least necessary number of monitored members can be achieved for the accurate solution and compensation of active cable length deviations. Different members have different sensitivities to the change of the length in active cables and those members with great sensitivities can be chosen in prior as monitored members. The evaluation parameters Δ and ρ can be used to analyze the source of errors and to evaluate the error effect level caused by the passive cable length deviation.
-
Support node construction error analysis of a cable-strut Tensile Structure based on the reliability theory:
Advances in Structural Engineering, 2018Co-Authors: Lian-meng Chen, Yi Yi Zhou, Dong Hu, Shilin Dong, Fu-bo ZhangAbstract:A support node construction error sensitivity analysis was conducted, and the allowable value of node error was determined in this study based on the reliability theory and using the ANSYS software...
-
Numerical Analysis and Experimental Research on the Element-Length Error Sensitivity of the Cable-Bar Tensile Structure
Applied Mechanics and Materials, 2015Co-Authors: Lian-meng Chen, Xi Guo Ye, Yi Yi ZhouAbstract:According to the element-length errors inevitably existing in the real cable-bar Tensile Structures, numerical analysis on the element-length error sensitivity was firstly carried out with the help of ANSYS software, where the element length change was simulated by imposing the temperature affection. Then a cable-bar Tensile Structure model with the diameter of 5.0m was designed and fabricated. The element-length errors were simulated by adjusting the element length and each member in one unit was elongated 3mm respectively to explore the error sensitivity of each kind of element. The numerical analysis and experimental results indicated that different element has different error sensitivity. The error sensitivity of the hoop cables was the most sensitive, the ridge cables and diagonal cables were lower and the struts were the lowest. The experimental results performed almost consistent with the analytical results, which indicated that the proposed error sensitivity analysis method is accurate and the design of the model is effective.
-
Experimental Research on the Prestress and Static Behavior of a Cable-Strut Tensile Structure Model
Advanced Materials Research, 2014Co-Authors: Lin Fu, Lian-meng Chen, Bin Wu, Zi Hao Zhang, Xi Guo Ye, Yi Yi ZhouAbstract:A cable-strut Tensile Structure model with the diameter of 5.0m was designed and made to study the prestress and static behavior on the base of theory analysis. New schemes of the boundary compression ring, the cables and struts with the adjustable length, the connection nodes were designed and the least square method to fit the element force and strain curve was proposed. The initial prestress distribution and the responses of the model under full-span node load, half-span node load and 1/4-span node load were investigated. The experimental results indicate the cable-strut Tensile Structure will achieve the designed initial prestress while every element was tensioned to designed length. The outer planar stiffness of the Structure is poor and easy to lost stability when subjected to asymmetric loads. The measured values and computed ones are almost consistent, which indicates the validity of the model design and the accuracy of the proposed methods.
Lian-meng Chen - One of the best experts on this subject based on the ideXlab platform.
-
Determination of a Monitoring Scheme for Controlling Construction Errors of a Cable-strut Tensile Structure
Ksce Journal of Civil Engineering, 2018Co-Authors: Lian-meng Chen, Yi Yi Zhou, Dong Hu, Fu-bo Zhang, Shilin DongAbstract:Construction errors are inevitable in real cable-strut Tensile Structures. Nevertheless, the relevant work, especially the monitoring scheme design work, to control the construction errors is lacking. At present, the monitoring schemes always lay out the monitored members in the places with great internal force or great deformation, do not consider the method to control the construction errors and do not explain the method to lay out the monitored members in fundamental theory. To address this situation, the element length error, which is an important construction error affecting the bearing performance, is considered as the factor variable and the fundamental equation of pre-stress deviation and element length error is derived firstly. Next the methods to express the pre-stress deviation, which are only derived from the active cable length errors or from both the active cable and passive cable length errors, are discussed. After that, based on the condition that the errors can be solved and compensated, the least number of monitored members is determined. Moreover, those members sensitive to cable length deviation of active cables are selected as monitored members. In order to evaluate the effect level caused by passive cable length deviation, two evaluation parameters Δ and ρ are further discussed. Finally, one cable-strut Tensile Structure example is employed to verify the proposed method and the results of the example studies indicate that the least necessary number of monitored members can be achieved for the accurate solution and compensation of active cable length deviations. Different members have different sensitivities to the change of the length in active cables and those members with great sensitivities can be chosen in prior as monitored members. The evaluation parameters Δ and ρ can be used to analyze the source of errors and to evaluate the error effect level caused by the passive cable length deviation.
-
Support node construction error analysis of a cable-strut Tensile Structure based on the reliability theory:
Advances in Structural Engineering, 2018Co-Authors: Lian-meng Chen, Yi Yi Zhou, Dong Hu, Shilin Dong, Fu-bo ZhangAbstract:A support node construction error sensitivity analysis was conducted, and the allowable value of node error was determined in this study based on the reliability theory and using the ANSYS software...
-
Numerical Analysis and Experimental Research on the Element-Length Error Sensitivity of the Cable-Bar Tensile Structure
Applied Mechanics and Materials, 2015Co-Authors: Lian-meng Chen, Xi Guo Ye, Yi Yi ZhouAbstract:According to the element-length errors inevitably existing in the real cable-bar Tensile Structures, numerical analysis on the element-length error sensitivity was firstly carried out with the help of ANSYS software, where the element length change was simulated by imposing the temperature affection. Then a cable-bar Tensile Structure model with the diameter of 5.0m was designed and fabricated. The element-length errors were simulated by adjusting the element length and each member in one unit was elongated 3mm respectively to explore the error sensitivity of each kind of element. The numerical analysis and experimental results indicated that different element has different error sensitivity. The error sensitivity of the hoop cables was the most sensitive, the ridge cables and diagonal cables were lower and the struts were the lowest. The experimental results performed almost consistent with the analytical results, which indicated that the proposed error sensitivity analysis method is accurate and the design of the model is effective.
-
Experimental Research on the Prestress and Static Behavior of a Cable-Strut Tensile Structure Model
Advanced Materials Research, 2014Co-Authors: Lin Fu, Lian-meng Chen, Bin Wu, Zi Hao Zhang, Xi Guo Ye, Yi Yi ZhouAbstract:A cable-strut Tensile Structure model with the diameter of 5.0m was designed and made to study the prestress and static behavior on the base of theory analysis. New schemes of the boundary compression ring, the cables and struts with the adjustable length, the connection nodes were designed and the least square method to fit the element force and strain curve was proposed. The initial prestress distribution and the responses of the model under full-span node load, half-span node load and 1/4-span node load were investigated. The experimental results indicate the cable-strut Tensile Structure will achieve the designed initial prestress while every element was tensioned to designed length. The outer planar stiffness of the Structure is poor and easy to lost stability when subjected to asymmetric loads. The measured values and computed ones are almost consistent, which indicates the validity of the model design and the accuracy of the proposed methods.
Fu-bo Zhang - One of the best experts on this subject based on the ideXlab platform.
-
Determination of a Monitoring Scheme for Controlling Construction Errors of a Cable-strut Tensile Structure
Ksce Journal of Civil Engineering, 2018Co-Authors: Lian-meng Chen, Yi Yi Zhou, Dong Hu, Fu-bo Zhang, Shilin DongAbstract:Construction errors are inevitable in real cable-strut Tensile Structures. Nevertheless, the relevant work, especially the monitoring scheme design work, to control the construction errors is lacking. At present, the monitoring schemes always lay out the monitored members in the places with great internal force or great deformation, do not consider the method to control the construction errors and do not explain the method to lay out the monitored members in fundamental theory. To address this situation, the element length error, which is an important construction error affecting the bearing performance, is considered as the factor variable and the fundamental equation of pre-stress deviation and element length error is derived firstly. Next the methods to express the pre-stress deviation, which are only derived from the active cable length errors or from both the active cable and passive cable length errors, are discussed. After that, based on the condition that the errors can be solved and compensated, the least number of monitored members is determined. Moreover, those members sensitive to cable length deviation of active cables are selected as monitored members. In order to evaluate the effect level caused by passive cable length deviation, two evaluation parameters Δ and ρ are further discussed. Finally, one cable-strut Tensile Structure example is employed to verify the proposed method and the results of the example studies indicate that the least necessary number of monitored members can be achieved for the accurate solution and compensation of active cable length deviations. Different members have different sensitivities to the change of the length in active cables and those members with great sensitivities can be chosen in prior as monitored members. The evaluation parameters Δ and ρ can be used to analyze the source of errors and to evaluate the error effect level caused by the passive cable length deviation.
-
Support node construction error analysis of a cable-strut Tensile Structure based on the reliability theory:
Advances in Structural Engineering, 2018Co-Authors: Lian-meng Chen, Yi Yi Zhou, Dong Hu, Shilin Dong, Fu-bo ZhangAbstract:A support node construction error sensitivity analysis was conducted, and the allowable value of node error was determined in this study based on the reliability theory and using the ANSYS software...
Shilin Dong - One of the best experts on this subject based on the ideXlab platform.
-
Determination of a Monitoring Scheme for Controlling Construction Errors of a Cable-strut Tensile Structure
Ksce Journal of Civil Engineering, 2018Co-Authors: Lian-meng Chen, Yi Yi Zhou, Dong Hu, Fu-bo Zhang, Shilin DongAbstract:Construction errors are inevitable in real cable-strut Tensile Structures. Nevertheless, the relevant work, especially the monitoring scheme design work, to control the construction errors is lacking. At present, the monitoring schemes always lay out the monitored members in the places with great internal force or great deformation, do not consider the method to control the construction errors and do not explain the method to lay out the monitored members in fundamental theory. To address this situation, the element length error, which is an important construction error affecting the bearing performance, is considered as the factor variable and the fundamental equation of pre-stress deviation and element length error is derived firstly. Next the methods to express the pre-stress deviation, which are only derived from the active cable length errors or from both the active cable and passive cable length errors, are discussed. After that, based on the condition that the errors can be solved and compensated, the least number of monitored members is determined. Moreover, those members sensitive to cable length deviation of active cables are selected as monitored members. In order to evaluate the effect level caused by passive cable length deviation, two evaluation parameters Δ and ρ are further discussed. Finally, one cable-strut Tensile Structure example is employed to verify the proposed method and the results of the example studies indicate that the least necessary number of monitored members can be achieved for the accurate solution and compensation of active cable length deviations. Different members have different sensitivities to the change of the length in active cables and those members with great sensitivities can be chosen in prior as monitored members. The evaluation parameters Δ and ρ can be used to analyze the source of errors and to evaluate the error effect level caused by the passive cable length deviation.
-
Support node construction error analysis of a cable-strut Tensile Structure based on the reliability theory:
Advances in Structural Engineering, 2018Co-Authors: Lian-meng Chen, Yi Yi Zhou, Dong Hu, Shilin Dong, Fu-bo ZhangAbstract:A support node construction error sensitivity analysis was conducted, and the allowable value of node error was determined in this study based on the reliability theory and using the ANSYS software...
Ma Hong - One of the best experts on this subject based on the ideXlab platform.
-
The Suspendome System and Dynamic Properties Analysis of Suspendome Structure
Construction & Design for Project, 2020Co-Authors: Ma HongAbstract:Suspendome is a new hybrid space Structure,developed on the base of cable-strut Tensile Structure and single-layer dome structre.In this paper,the background and the structural principles of suspendome system are described.The modal analysis and seismic analysis of the Structure are carried out using the ANSYS software and obtained the dynamic features of the suspendome.The dynamic proerties of suspendome are copared in unprestress force and presfess force to suspendome
