0
RESEARCH PAPERS

Strength and Buoyancy Analyses of Floating Roof With Continuous Beams and Dome Frames Under Rainwater Loading

[+] Author and Article Information
Xiushan Sun

Department of Engineering Mechanics, Tsinghua University, Beijing 100084, People’s Republic of Chinasxs@tsinghua.edu.cn

Yinghua Liu1

Department of Engineering Mechanics, Tsinghua University, Beijing 100084, People’s Republic of Chinayhliu@tsinghua.edu.cn

Zhangzhi Cen

Department of Engineering Mechanics, Tsinghua University, Beijing 100084, People’s Republic of Chinademczz@tsinghua.edu.cn

Shutian Lin

Department of Engineering Mechanics, Tsinghua University, Beijing 100084, People’s Republic of Chinademlst@tsinghua.edu.cn

1

Corresponding author.

J. Pressure Vessel Technol 129(1), 73-82 (Mar 27, 2006) (10 pages) doi:10.1115/1.2389007 History: Received December 19, 2005; Revised March 27, 2006

In this paper, the strength and buoyancy problems of the floating roof with continuous beams and dome frames are analyzed by the finite element method (FEM) and model experiment method. The modified-loading method with relationship between deflection and load is developed to carry out the FEM analysis of the floating roof under rainwater loading, and a model experiment is also configured to prove the reasonability of the numerical method and to assist the analysis. The deflections, strains, and sinking problems of the floating roof with continuous beams and dome frames are simulated by the present FEM and tested by the experiment, respectively. The floating roof without beams, ribs, or frames is also simulated by the present FEM. The numerical results are compared to the corresponding experimental ones. According to these results, the problems of strength and buoyancy of the floating roof with continuous beams and dome frames are also investigated and discussed. These results will provide some available references to designs and studies in the industry.

Copyright © 2007 by American Society of Mechanical Engineers
Your Session has timed out. Please sign back in to continue.

References

Figures

Grahic Jump Location
Figure 1

Sketch of the floating roof with continuous beams and dome frames

Grahic Jump Location
Figure 2

Dimension illustration of the floating roof

Grahic Jump Location
Figure 3

Loading model of the floating roof in the FE simulation

Grahic Jump Location
Figure 4

Deflection and water heights of the floating roof

Grahic Jump Location
Figure 5

Flowchart of finite element analysis with modified-loading method

Grahic Jump Location
Figure 6

FE model of the floating roof with continuous beams and dome frames: (a) An eighteenth structure model for strength analysis and (b) Continuous beams and ribs in the eighteenth structure

Grahic Jump Location
Figure 7

Experiment model and test equipments

Grahic Jump Location
Figure 8

Staff gage locations for deflection measurement

Grahic Jump Location
Figure 9

Strain gage configurations and leading wires in the compartment for test

Grahic Jump Location
Figure 10

Deflection of the deck under h0=50mm

Grahic Jump Location
Figure 11

Maximum deflections of the deck under different rainfalls

Grahic Jump Location
Figure 12

Comparison of deflection of the deck for roofs with and without beams (h0=50mm)

Grahic Jump Location
Figure 13

Comparison of maximum deflection of the deck for roofs with and without beams under different rainfalls

Grahic Jump Location
Figure 14

Radial strain in the deck

Grahic Jump Location
Figure 15

Tangential strain in the deck

Grahic Jump Location
Figure 16

Comparison of radial strain in the deck for roofs with and without beams

Grahic Jump Location
Figure 17

Comparison of tangential strain in the deck for roofs with and without beams

Grahic Jump Location
Figure 18

Tangential strain in the inner rim

Grahic Jump Location
Figure 19

Vertical strain in the inner rim

Grahic Jump Location
Figure 20

Comparison of tangential strain in the inner rim for roofs with and without beams

Grahic Jump Location
Figure 21

Comparison of vertical strain in the inner rim for roofs with and without beams

Grahic Jump Location
Figure 22

Radial strain in the bottom plate

Grahic Jump Location
Figure 23

Tangential strain in the bottom plate

Grahic Jump Location
Figure 24

Comparison of radial strain in the bottom plate for roofs with and without beams

Grahic Jump Location
Figure 25

Comparison of tangential strain in the bottom plate for roofs with and without beams

Grahic Jump Location
Figure 26

Uniaxial strain in the bottom continuous radial beams

Grahic Jump Location
Figure 27

Uniaxial strain in the bottom continuous annulus beams

Grahic Jump Location
Figure 28

Uniaxial strain in the upright rib

Grahic Jump Location
Figure 29

Water heights under different rainfalls

Grahic Jump Location
Figure 30

Sinking heights under different rainfalls

Grahic Jump Location
Figure 31

Comparison of water heights for the roofs with and without beams under different rainfalls

Grahic Jump Location
Figure 32

Comparison of sinking heights for the roofs with and without beams under different rainfalls

Grahic Jump Location
Figure 33

Test for deck and two adjacent compartments punctured

Tables

Errata

Discussions

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related Journal Articles
Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In