scholarly journals STRUCTURAL OPTIMIZATION OF SUPPORTING STRUCTURE OF SCHOOL GYMNASIUM WITH STEEL ROOF FOR SEISMIC RESPONSE REDUCTION OF BEARING REACTION FORCES

2020 ◽  
Vol 85 (767) ◽  
pp. 61-71
Author(s):  
Toshiaki KIMURA ◽  
Makoto OHSAKI ◽  
Kohei SATO
Keyword(s):  
Structural Optimization ◽  
Seismic Response ◽  
Supporting Structure ◽  
Reaction Forces ◽  
Steel Roof

A Shelved Structure for the Support of An Electron Optical Column

1970 ◽  
Vol 28 ◽  
pp. 366-367
Author(s):  
P.H. McLaughlin
Keyword(s):  
Electron Source ◽  
Floating Platform ◽  
Supporting Structure

A shelved structure for the support of an electron optical column affords advantages both to the designer and the user. A lens may be removed for cleaning for example, without demounting the remaining lenses. A custom device for another example, may be placed on a shelf, substituting for the standard lens perhaps so that some specialized research may be undertaken. Especially advantageous is a shelved arrangement if the column assembly is designed to hang from a supporting structure such as a gas borne floating platform, as is the case with the system described below.As shown on the schematic, a floating platform (I) supports the electron source apparatus (2) and a U-shaped column support shelf (3). The column support shelf acts as a key for locating and supporting three struts (4) which with nuts (5) support the condenser shelf (6), the objective shelf (7), the upper projector shelf (8), and the lower projector shelf (9).

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