吊装自成型GFRP弹性网壳的找形方法与施工过程模拟

玻璃钢/复合材料 ›› 2018, Vol. 0 ›› Issue (4): 86-91.

吊装自成型GFRP弹性网壳的找形方法与施工过程模拟

邹乐, 向升, 程斌^*

上海交通大学船舶与建筑工程学院,上海200240

收稿日期:2017-05-24 出版日期:2018-04-25 发布日期:2018-04-20
通讯作者: 程斌(1979-),男,博士,副教授,主要从事钢结构、复合材料结构等方面的研究,cheng_bin@sjtu.edu.cn。
作者简介:邹乐(1993-),男,硕士,研究方向为GFRP材料在网壳结构中的应用。

FROM-FINDING METHOD AND CONSTRUCTION SIMULATION OF HOSTING INDUCED SELF-FORMING GFRP ELASTIC GRIDSHELL

ZOU Le, XIANG Sheng, CHENG Bin^*

School of Naval Architecture, Ocean&Civil Engineering, Shanghai Jiao Tong University, Shanghai 201100, China

Received:2017-05-24 Online:2018-04-25 Published:2018-04-20

摘要/Abstract

摘要： 吊装自成型GFRP弹性网壳结构由统一规格的GFRP长直圆管杆件组成,并利用GFRP材料自重轻、弹性模量低的特点,使得杆件在吊装过程中由于自重作用产生弯曲变形,从而自动形成设计所需曲面。采用有限元方法并结合程序二次开发,针对一种具有单轴对称曲面的GFRP弹性网壳结构进行找形分析,提出相应的找形迭代算法并通过实例验证其有效性,在此基础上开展吊装施工全过程数值模拟。结果表明,找形算法具有很好的计算精度和计算效率,能满足此类网壳结构的设计和施工要求,成型后的网壳结构具有很好的承载能力储备。

关键词: 复合材料, GFRP弹性网壳, 吊装成型, 找形方法, 施工模拟

Abstract: Hoisting induced self-forming GFRP elastic gridshells are made of long-continuous standardized glass fiber reinforced polymer (GFRP) circular tubes with properties of high elastic strain and low modulus. The space surfaces of the gridshells, which mainly behave as the bending deformations of the tubular members, are automatically formed because of the gravity effects during hoisting. By employing finite element method and programming tools, this paper presents a form-finding algorithm for a certain type of elastic gridshell that has the single symmetry plane, followed by the numerical simulation of hosting construction process. The proposed form-finding algorithm is proved to have good calculation accuracy and efficiency to meet the design and construction requirements. The constructed GFRP gridshell structures are found to behave reliable load bearing capacities.

Key words: composite materials, GFRP elastic gridshell, hoisting induced shape forming, form-finding, constriction simulation

中图分类号:

TB332

邹乐, 向升, 程斌. 吊装自成型GFRP弹性网壳的找形方法与施工过程模拟[J]. 玻璃钢/复合材料, 2018, 0(4): 86-91.

ZOU Le, XIANG Sheng, CHENG Bin. FROM-FINDING METHOD AND CONSTRUCTION SIMULATION OF HOSTING INDUCED SELF-FORMING GFRP ELASTIC GRIDSHELL[J]. Fiber Reinforced Plastics/Composites, 2018, 0(4): 86-91.

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