Mechanical analysis of composite ribbed shell under dynamical loads

DOI

10.2991/icadme-15.2015.265How to use a DOI?

Keywords

composite ribbed shell; step load; seismic analysis; strength failure; dynamic stability

Abstract

Spherical composite ribbed shell is made of thin reinforced concrete shell and composite ribs, which has many advantages such as large span, high rigidity, and large bearing capacity and low cost. It is one of the urgent issues to considering the mechanical performance under dynamic loading. Based on nonlinear finite element theory, a numerical calculation model is built, and then the dynamic response of composite ribbed shell under step load and seismic wave are respectively discussed. The results shows: under the vertical step load, a positive symmetric deformation appeared in unstable status; under horizontal step loads, an anti symmetric deformation emerged. While as the seismic wave was exerting, structural damage caused by thin concrete shell damage and plastic deformation development, namely it was the synthetic action result of structural stiffness weaken and P- effect from geometric nonlinear, so structure damage was the comprehensive effect of strength failure and dynamic instable.

Copyright

© 2015, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Y.Z. Chang
AU  - T. Feng
AU  - Sh. L. Meng
PY  - 2015/10
DA  - 2015/10
TI  - Mechanical analysis of composite ribbed shell under dynamical loads
BT  - Proceedings of the 5th International Conference on Advanced Design and Manufacturing Engineering
PB  - Atlantis Press
SP  - 1434
EP  - 1437
SN  - 2352-5401
UR  - https://doi.org/10.2991/icadme-15.2015.265
DO  - 10.2991/icadme-15.2015.265
ID  - Chang2015/10
ER  -