Based on the static load test of bridge pier with root-type bars,the corresponding fiber Bragg grating(FBG) sensor network is designed.The FBG sensor locations are determined by the finite element method.10 layers of FBG sensors according to soil structure, and each layer consists of 8 FBG strain sensors and 1 temperature compensatation sensor, respectively.The loading tests are achieved by 12 times using self-balanced load test technique, and each load is increased with 2 350 kN and kept for 2 h.The FBG se...