Proceedings of the 8th China conference on man-machine-environment system engineering Research advance for man-machine-environment systems engineering Proceedings of the 26th national conference on structural engineering Proceedings of the 29th national conference on structural engineering Proceedings of the ninth national conference on structural engineering Proceedings of the eighth national conference on structural engineering Proceedings of the 32nd national conference on structural engineering Proceedings of the ninth national conference on structural engineering Proceedings of the seventh national conference on structural engineering Proceedings of the twenty-second national conference on structural engineering