原文传递
Effect of Joint Stiffness on Deformation of a Novel Hybrid FRP–Aluminum Space Truss System
| 题名： | Effect of Joint Stiffness on Deformation of a Novel Hybrid FRP–Aluminum Space Truss System |
| 正文语种： | 英文 |
| 作者： | Ruijie Zhu1; Feng Li2; Dongdong Zhang3; Jie Tao4 |
| 作者单位： | 1Postgraduate Student, College of Field Engineering, Army Engineering Univ. of PLA, Haifuxiang 1th, Xuanwu District, Nanjing 210000, China. 2Associate Professor, College of Field Engineering, Army Engineering Univ. of PLA, Haifuxiang 1th, Xuanwu District, Nanjing 210000, China (corresponding author). 3Lecturer, College of Field Engineering, Army Engineering Univ. of PLA, Haifuxiang 1th, Xuanwu District, Nanjing 210000, China. 4Postgraduate Student, College of Field Engineering, Army Engineering Univ. of PLA, Haifuxiang 1th, Xuanwu District, Nanjing 210000, China. |
| 关键词： | Hybrid structure; Space truss; Pultruded fiber-reinforced polymer (FRP); Aluminum; Axial stiffness; Finite-element model |
| 摘要： | To achieve light weight, high load-carrying capacity, and corrosion resistance, a novel hybrid FRP-aluminum space truss system is proposed in detail. An advanced pretightened teeth connection (PTTC) and its combined joint–aluminum bolt–ball connecting system (ABCS) were designed to interconnect pultruded FRP elements. In view of the significant effect of the ABCS on structural deformation, the axial stiffness properties of the ABCS were first investigated through experimental tests and numerical simulations. Then, in establishing a structural calculation model for the hybrid space truss, a new combined-line-elements solution was proposed to simulate the complex axial stiffness variation in the ABCS, to which the traditional Timoshenko beam element cannot be applied. Beam elements with different cross sections were adopted to simulate the FRP truss member and the PTTC. The structural calculation model was verified with a previously published case. The design of a hangar structure using this hybrid space truss system is discussed here. The preliminary design was made using the traditional simple-link-system model, and a comparative calculation was made with the new combined-line-elements model. The results indicated that the structural design of this unique hybrid system under a flexural moment is stiffness-driven rather than strength-driven owing to the low elastic modulus of the materials. The conventional simple-link-system model ignores actual differences in component stiffness and thus is dangerous for structural design. Based on the discussion, a design strategy for the hybrid space truss system is proposed. |
| 出版年： | 2019 |
| 期刊名称： | Journal of Structural Engineering |
| 卷： | 145 |
| 期： | 11 |
| 页码： | 1-12 |
相关文献
- Effect of Joint Stiffness on Flexural Performance of a Hybrid FRP-Aluminum Space Truss Structure
- Slender RC Columns Strengthened with a Novel Hybrid Strengthening System of External Longitudinal and Transverse FRPs
- In-Plane Behavior of Timber-Steel Hybrid Floor Diaphragms: Experimental Testing and Numerical Simulation
- Experimental and Numerical Analysis of Prestressed Prefabricated Self-Centering IMS Composite Frame Joints
- Effect of Geometry and Control on the Probability of Breakdown and Capacity at Freeway Merges
- Seismic Performance of Joint between Timber–Concrete Composite Beams and Steel Column with Innovative Semirigid Connections: Experimental and Numerical Studies under Quasi-Static Cyclic Loading Conditions
检索历史
应用推荐
