Canadian Long Span Earth Covered Magazines – Design Challenges

22 Fig. a - FEM integrated model for the design/analysis of roof component using
LS-DYNA software (shows elevation, cross section and plan views) Fig. b - FEM D slice model used to analyze sidewall response

23 Fig. c - Shows details of meshing for concrete and surrounding soil mass Fig. d - Shows application of both conventional and blast loads on CLSECM

24 Fig. a - FEM model simulation for the front headwall-door system Fig. b - FEM model simulation of sliding door

25 Fig. c - Cross Section of FEM Model for the front head wall/door system for design/analysis

26 Fig 7
– Effect of earth fill overlap on the integrity and storage capacity of
CLSECM as an ES

27 Fig a
– Push through of door due to shear failure for 7 bar load (before retrofit) Fig b - Interior view of the added retrofit precast block attached to the pilasters at either end

28 Fig c - Headwall and Door model for analysis Fig a - Rotation at door end for various Fig b - Reaction force to be thickness of precast blocks added resisted by precast block to the pilaster

29 Elevation view of Precast block Plan view of Precast block Fig 10 - Door response for 7 bar load with 200 mm precast blocks added to reduce door opening
– no inward movement of door despite yielding of web (after retrofit)

30 Fig 11 - Typical PI diagram response for the Large variant CLSECM components

31

Download 3.12 Mb.

Share with your friends: