Engineered bamboo bridge structure - Report on 3rd International Collaboration on Bamboo Construction by Haitao Li, Zixian Feng, Xinqi Shen, Yifan Wang, Xin Xue, Rodolfo Lorenzo, Mahmud Ashraf, Zhenhua Xiong, Chungui Zhou, Ningjun Chen, Jian Zhang, Kewei Liu, Edwin Zea Escamilla