Build the strongest bridge (paper bridge) with A4 paper?

After stretching 1/3, it is tightly rolled into a roll, which is similar to a solid paper tube (paper stick) with a diameter of about 1.5-2 cm, and then three such wooden sticks, with a width of more than 50mm and a length of more than 220 mm, can really withstand a barrel 18.9L exceeding/kloc after testing. Fold the paper into a "WW" shape, two for the pier and three for the bridge deck.