Optimal prestress design of composite cable-stayed bridges

被引：47
|
作者：
Fabbrocino, F. [1 ]
Modano, Ni. [2 ]
Farina, I. [3 ]
Carpentieri, G. [4 ]
Fraternali, F. [4 ]
机构：
[1] Pegaso Univ, Dept Engn, Piazza Trieste & Trento 48, I-80132 Naples, Italy
[2] Federico II Univ Naples, Dept Civil Engn, Via Claudio 21, I-80125 Naples, Italy
[3] Univ Naples Parthenope, Dept Engn, Ctr Direz Napoli, Isola C4, I-80143 Naples, Italy
[4] Univ Salerno, Dept Civil Engn, Via Giovanni Paolo 2 132, I-84084 Fisciano, SA, Italy
来源：
COMPOSITE STRUCTURES | 2017年 / 169卷
关键词：
Cable-stayed bridges; Composite bridges; Pre-stressing sequence; Force equilibrium method; Optimal bridge design; METALLIC FIBERS; CEMENT MORTARS; MASONRY DOMES; FRP CABLE; REINFORCEMENT; STRENGTH; SURFACE; JOINTS;
D O I：
10.1016/j.compstruct.2016.09.008
中图分类号：
O3 [力学];
学科分类号：
08 ; 0801 ;
摘要：
The present study considers the optimal pre-tensioning design of lattice structures forming composite cable-stayed bridges. With reference to a model problem, a target bending moment distribution over the longitudinal beams is identified, with the aim of achieving an optimized use of the material composing the bridge. Next, a procedure for the optimization of cable forces is developed, in order to achieve the desired bending moment distribution through the application of a self-equilibrated state of stress induced by optimal cable pre-tensioning. Results indicate that the given design approach is suitable for the optimization of the pre-tensioning sequence of arbitrary composite cable-stayed bridges. (C) 2016 Elsevier Ltd. All rights reserved.
引用
收藏
页码：167 / 172
页数：6
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