ST 341 REDUNDANT TRUSS
GENERAL DESCRIPTION

    The equipment allows measurement of deflections and axial forces in pin-jointed truss members when a redundant member is added.

    A wall mounted truss frame has a pinned upper joint and the lower joint a roller bearing on a support. There are 7 truss members and an extra member with an adjustable length. Load is applied by a load hanger and weights. Deflection is measured by an indicator.  Each truss member has a strain gauge which is wired to form a full bridge with temperature compensation and zero adjustment in the strain indicator.

TECHNICAL DATA
Member approximate cross-section : 42 mm2.        
Members with strain gauge bridge : 8 ea.        
ST 131 Dial Indicator : 1 ea.        
ST 152 Strain Indicator : 1 ea.        
Load hanger : 1        
Weights : 1 lot, total 50 N.      
Power supply : 220V 1Ph 50Hz or as required.    
OPTIONAL EQUIPMENT

Dummy member with strain gauge : 1 ea.