silo 3 - U.S. Department of Energy

@
1.4
LOAD LIMITATIONS ON SILO 3
Access and Retrieval Strategy for the Silo 3 Project
Document No. 40430-PL-0002. Rev. 1
September 2003
Figure 1-2 Elevation View of Silo Opening
ELEVATION
LOOWG WEST
The Technical Safety Requirements (TSR) Document for the Operable Unit 4 Silos (FCP
2003) defines the requirements and restrictions for live and dead loads placed on Silo 3.
The engineering design and operation of the Vacuum Wand Management System will be
evaluated to ensure compliance with the DOE-approved TSR document.
The FCP Silos Dome Access Procedure delineates administrative controls to ensure silo
dome loads are evaluated and placed in accordance with the TSR document. In no case
shall loads, other than personnel and personnel-carried portable equipment, be placed on
the silo dome unless evaluated and approved in writing by Silos Project Engineering and
within authorization of the TSR revision approved by DOE. Silos Project Engineering shall
evaluate any components to be connected to the silo for live load and dead load, and
determine when the component is no longer a live load.
Finite element analysis of the silo has been performed to support the design of the
concrete reinforcement at the location of the silo wall opening.
"Critical lift" plans are to be developed for all lifting performed over the silo structure, and
for lifts in which a potential exists to impact the silo structure. The definition of a "critical
lift," as well as the requirements for critical lift plans, are contained in the FCP Hoist and
Rigging Manual (FCP nd).
1.5 SILO ENCLOSURE
A fabric membrane structure will be cons ructed to completely en
protection. The structure has the following features:
. . *. .?. . ,
< r : - : * I .
5
' \
lose Silo 3 for weather
5068
000865