The equipment allows direct measurement of the horizontal component of the abutment thrust of a two hinged parabolic arch by using a simple model. It is to be used with ST300 Universal Structural Frame (separately supplied)
A parabolic arch of uniform cross-section has one end of the arch on a fixed hinged pin and the other is on bearings on a horizontal force support. The horizontal movement of the roller end is monitored by a dial indicator. Measurement of horizontal thrust by the roller end is by using a pulley and a load hanger.
|Arch||:||Mild steel 19 x 4.5 (approx) mm. section.|
|:||600 mm. span, 100 mm. rise.|
|Loading point||:||7, equally spaced.|
|ST119 Horizontal Force Support||:||1 ea.|
|ST131 Dial Indicator||:||1 required (separately supplied).|
|Loading hangers||:||7 ea.|