焊接高手，请进

轴焊接在矩形钢200*100*8的200面上，然后装在轴承座上，轴选的是100的；整个台架重（包括自身）2.5吨，请问这样设计合理么？怎么焊接？需要加筋么？怎么加？<img id="aimg_C7BIi"  class="zoom" file="http://b71.photo.store.qq.com/http_imgload.cgi?/rurl4_b=aa9b3af40f7bba3bda75f9cdd77283d6a5e1584470066bff0ed363b688af514e39ad3b5c5c534803e4f6acd146f2adea7c567d1fc522bf783d3e3c34015437b1d6c8958ff8bb8cd6c6fc835126223ec1f0fafb44"  lazyloadthumb="1" border="0" alt="" />

http://user.qzone.qq.com/290750575/photo/upload/