Post-Tensioned Modular Inflated Structures 237 bottom cables cushions cross-braces Fig.22.Composition of deployable inflated bridge-type 1 Deployable inflated bridge-type 2 In general,composition of deployable bridge of typ 2 is the same as for the bridge of type 1.The main difference is in use cushions with variable thickness, instead of cross-braces,Fig.23.Sequence of assembling is the same as for the bridge of type 1. bottom cables cushions with variable thickness Fig.23.Composition of deployable inflated bridge-type 2 Deployable inflated bridge-type 3 Deployable inflated bridge of type 3 is actually a bridge of type 2 with modified method of deployment.The idea is derived from the well-known children's toy “inflated tongue". The bridge is pre-assembled,packed into a bundle and transported on a suitable vehicle.Assembling procedure starts with completely deflated and rolled set of cushions,Fig.24. With progress of inflation,the bridge begins to unroll.At this stage the structure reminds a "scorpion's abdomen",Fig.25.The post-tensioning of the bottom chord starts together with inflation.This allows stabilizing the structure. Completely inflated structure is placed over the obstacle and transporta- tion vehicle is moving off the passage place,Fig.26.Post-Tensioned Modular Inflated Structures 237 Fig. 22. Composition of deployable inflated bridge – type 1 Deployable inflated bridge–type 2 In general, composition of deployable bridge of typ 2 is the same as for the bridge of type 1. The main difference is in use cushions with variable thickness, instead of cross-braces, Fig. 23. Sequence of assembling is the same as for the bridge of type 1. Fig. 23. Composition of deployable inflated bridge – type 2 Deployable inflated bridge – type 3 Deployable inflated bridge of type 3 is actually a bridge of type 2 with modified method of deployment. The idea is derived from the well-known children’s toy “inflated tongue”. The bridge is pre-assembled, packed into a bundle and transported on a suitable vehicle. Assembling procedure starts with completely deflated and rolled set of cushions, Fig. 24. With progress of inflation, the bridge begins to unroll. At this stage the structure reminds a “scorpion’s abdomen”, Fig. 25. The post-tensioning of the bottom chord starts together with inflation. This allows stabilizing the structure. Completely inflated structure is placed over the obstacle and transporta￾tion vehicle is moving off the passage place, Fig. 26