[1] Zhu Mingliang, Chen Xueqi, Guo Zhengxing,. Construction analysis on integral lifting of steel structureby the vector form intrinsic finite element [J]. Journal of Southeast University (English Edition), 2016, 32 (4): 451-456. [doi:10.3969/j.issn.1003-7985.2016.04.010]

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Construction analysis on integral lifting of steel structureby the vector form intrinsic finite element()

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Journal of Southeast University (English Edition)[ISSN:1003-7985/CN:32-1325/N]

Volumn:

32

Issue:

2016 4

Page:

451-456

Research Field:

Civil Engineering

Publishing date:

2016-12-20

Info

Title:

Construction analysis on integral lifting of steel structureby the vector form intrinsic finite element

Author(s):

Zhu Mingliang;  Chen Xueqi;  Guo Zhengxing

Key Laboratory of Concrete and Prestressed Concrete Structures of Ministry of Education, Southeast University, Nanjing 210096, China
School of Civil Engineering, Southeast University, Nanjing 210096, China

Keywords:

integral lifting;  vector form intrinsic finite element(VFIFE);  steel gallery;  whole process of construction;  dynamic magnification factor

PACS:

TU393.3;TU745.2

DOI:

10.3969/j.issn.1003-7985.2016.04.010

Abstract:

A new numerical method based on vector form intrinsic finite element(VFIFE)is proposed to simulate the integral lifting process of steel structures. First, in order to verify the validity of the VFIFE method, taking the steel gallery between the integrated building and the attached building of Nanjing Mobile Communication Buildings for example, the static analysis was carried out and the corresponding results were compared with the results achieved by the traditional finite element method. Then, according to the characteristics of dynamic construction of steel structure integral lifting, the tension cable element was employed to simulate the behavior of dynamic construction. The VFIFE method avoids the iterative solution of the stiffness matrix and the singularity problems. Therefore, it is simple to simulate the complete process of steel structure lifting construction. Finally, by using the VFIFE, the displacement and internal force time history curves of the steel structures under different lifting speeds are obtained. The results show that the lifting speed has influence on the lifting force, the internal force, and the displacement of the structure. In the case of normal lifting speed, the dynamic magnification factor of 1.5 is safe and reasonable for practical application.

References:

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Memo

Memo:

Biography: Zhu Mingliang(1982—), male, doctor, lecturer, zhumingliang@seu.edu.cn.
Foundation item: The National Natural Science Foundation of China(No.51308105).
Citation: Zhu Mingliang, Chen Xueqi, Guo Zhengxing. Construction analysis on integral lifting of steel structure by the vector form intrinsic finite element[J].Journal of Southeast University(English Edition), 2016, 32(4):451-456.DOI:10.3969/j.issn.1003-7985.2016.04.010.

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