We need to make a bridge to connect the two sides of a canal.  The canal is 5 meters wide and 2 meters deep.  The villagers constructed this canal as part of the effort to control the flood.  The retaining walls of the canal are made with the rocks on site.  Looking at the abandoned village and the hill and the vegetation that appear extensive, we wanted to create a bridge that is made of a thin steel plate.   

在一条5米宽的人工渠上计划架一座人行桥。渠有2米深，原来住在这里的村民为排洪修的。石头应该是就地取材。荒弃的村庄加上粗放的山和树。我们想做一片薄薄的钢板桥。

The elevations of the two sides of the canal are different, which created a natural arch to stabilize and reinforce the strength of the steel plate.  After consulted with the structure engineer, Yuan Xin, we designed a tension bar underneath of the arch to provide the support to the bridge. 

渠的两岸不一样高。钢板有个弧度可以增加受力，斜挎在一高一低的两岸。咨询结构设计师袁鑫老师，弧下拉杆为弧形的支撑提供受力点。