For properties of bamboo read

https://www.bambooimport.com/en/blog/what-are-the-mechanical-properties-of-bamboo

For steel Young modulus you can use a value between 195 GPa and 210 GPa. Steel strength is also variable according to steel grades, you can read

https://www.azom.com/article.aspx?ArticleID=6022

Average density of bamboo is 650kg/m3. Average design strength is say 20-40N/mm2. So It has a similar strength to weight ratio of mild steel.