where the diameter of the pole 12 is greater than the stays 13 16 the elements 28 serve for maintaining the geometry of the union fig3 3e show views to illustrate the union between the vertical trusses which conform the additional structure and the transversal trusses 23 that give support to the deck 11 dividing the original span into three shorter spans union 24 is formed from two brackets provided with two holes and having the shape shown in fig3 b which is a side view of union 24 this union 24 is also called the aerial point one hole permits the installation of pin 27 which connects the stay 13 with the union 24 the other hole which is much bigger permits the connection of union 24 with transversal truss 23 fig3 shows that the superior chord of the transversal truss 23 passes through the brackets 24 and through the horizontal element 15 element 23a fits exactly inside the tube that forms the superior chord of the transversal truss being a solid bar provided with two holes and a handle these holes permit bolts 25 to get in position this solid bar 23a is used for absorbing the shear forces produced by the brackets and the horizontal elements 15 the handle is used to easily put the solid bar 23a in position and to retire it in case of disassembly of the bridge elements 28 described below serve to maintain the geometry of union 24 fig4 shows a lateral view of the union 16a it is conformed by two brackets with the shape shown the brackets have three holes that serve to connect the stay 16 by means of a pin 27 through the interior another pin passes that connects the union 16a.