The bridge has a span $($distance between the two bases$)$ of $L=200$ meters and a rise $($height of the arch at its highest point$)$ of $H=40$ meters. The bridge is symmetrical about its center.

The deck of the bridge is subjected to a uniform distributed load due to the weight of the vehicles, pedestrians, and the deck structure itself, totaling $w=30k\frac{N}{m}.$

Additionally, consider that there is a concentrated load $P$ due to an abnormally heavy vehicle parked at the middle of the span, with $P=1000kN.$

The truss system and arches are also subjected to a horizontal wind load that can be approximated as a distributed load $w_t=5k\frac{N}{m}$ horizontally along the half$-$span of the arch.

A$.$ Calculate the shear force $V(x)$ in the vertical truss elements at a quarterspan from the base of the bridge.

B$.$ Assess the torsional moment $T$ in the horizontal members of the truss system at the quarter$-$span due to the wind load.