The Optimal Design of an Arch Girder of Variable Curvature and Stiffness by Means of Control Theory

Table 1

Boundary conditions and explicit interior point conditions for state variables.

State variable; for each	Characteristic point
	P0	P1		P2		P3		P4		P5		P6		P7
		Left; (-)	Right; (+)	Left; (-)	Right; (+)	Left; (-)	Right; (+)	Left; (-)	Right; (+)	Left; (-)	Right; (+)	Left; (-)	Right; (+)
	-	-	-	-	-	-	-	-	-	-	-	-	-	-
	-	-	-	-	-	-	-	-	-	-	-	-	-	-
	-													-
	0													0
	0													0
	0													0
	0													0
	-													-
	0													-