Section 156. Duties of superintendent

In  addition  to the duties of the
  superintendent of buildings prescribed herein, or otherwise by law,  the
  common  council  shall  by  ordinance prescribe his duties, and he shall
  have  such  power  and  authority  in  regard  to  the  supervision  and
  inspection  of the erection, construction or alteration of buildings and
  other structures as shall be conferred by  ordinance,  not  inconsistent
  with  the  other  laws  of the state. The common council shall also have
  power to establish  by  ordinance,  and  from  time  to  time  amend,  a
  "building  code,  "  providing  for all matters concerning, affecting or
  relating to the construction, alteration, repair or removal of buildings
  and  structures  heretofore  or  hereafter  erected;  but  no  ordinance
  amending,  repealing  or  modifying  such building code or any provision
  thereof shall be passed by the common council until  notice  shall  have
  been  published for at least ten days in the official paper or papers of
  the city that on a day stated in such notice, the  common  council  will
  consider  the  adoption  of  a proposed ordinance amending, repealing or
  modifying the building code, or a part thereof, generally or in  respect
  of a specified subject, and that a copy of such proposed ordinance is on
  file in the office of the city clerk.