I need to travel from Xingang port to central Beijing. I am thinking about taking the inter-city train from Tanggu or Tianjin Train Station to the South Beijing station. However, I have quite a bit of luggage. I will be traveling with my wife and 10 year-old child, and we will have three full-sized suitcases, one small suitcase, and three carry-on bags. Are there stairs in the Tanggu or Tianjin Train Stations? Will I have any problem taking this amount of luggage on the bullet train?

Thanks,
Joe