ORD 0143 - Laserfiche WebLink

20 per cent. Concrete, sand lime or other varieties of franle building is a bu;lding or structure who b;jck, used for the same purpose shall have an average walls or a portion ,~hereof are constructed oJ cr'ushing strength of 1500 lvonnds per square inch, and an bnilding sheathed with boards and partially absorption no~z e, xceeding 15 per cent. covered with four inches or less of brick wet Portland cement only shall be used in the mantLfac- tetra co~ta or I~laster shall be deemed to l tare of concrete blocks. The .coarse aggregate shall t3e building. of suitable material graded in size, but in no case shall I~ shall be unlawful for any person to mow the maximum dimension exceed one-fourth the mini- the location of any w. ood ~'ame building ins mum width of any section of the finished block. Con- limits, excep+. to move such building from said crete blocks shall no~ be used ~u construction until they ,c:ec. 10. Wood frame buildings when c have attained lhe age of 28 days, or developed the than five hundred dollars for the complete str strength required in this section. be bui~; without studding. All other wood f The co~npressive strength of bui/diug blocks and for ings shall have all exterior and all bearing hollox~ tile shall in all cases be calculated upon the su'ucted of studding of the size specified in gross area of -~l,e bedding ~aces, no account being taken and 13 hereof. of the cellular spaces. All wood frame build~:_ngs over one story in Hollow bnild~ng tile nsed for exterior or party walls all one story buildings where designed for d~ or piers and designed to he laid normally with the cells poses shall have the studding on all ext ver-~ical. shall ]lave an avert. go compressire strength of ,Aght l:/oarded c,n the weather side. No u~c~ not less than L200 ponnds per square inch when tested d'ng of any bu~.]ding shall be placed against w_'t:h the cells v+~rtical, and not less than 300 pounds per ~.n adjoining b-.ilding or structure. square inch w, hen tested with the cells horizontal ~ec. 1]. The mudsills o~ all buildings The average compressire streng.-h of hollow h;lilding redwood not le.qs ,~han two inches in th~_ckn ti. le designed to be laid normal]>, with the cells horizon- The main sills of all buildings over tal, and: tested: w'~h the cells in that position. shall be heigh~ shall be not less than four inches in not less than 760 pounds per square inch. Girders ~appcrting floor joists shall be n Hollow concrete block or tile used for exterior or party four inches in either dissension and the ve~ x~alIs or piers stroll ha~e an average compressire s'on shall be o2 solid timber. ~rhere the sps strength of not less than 7,00 pennale. per square inch. ports under the: girder exceeds five (5) foot Concrete blocks should be not more than 36 days old depth of the gh-der shall be increased so when tested. The average strength of the blocks as support the loads. here given shall be obtained by te~ing five blocks of ,~ec. 1~. ]~,*.inimum sizes of bearing wall average q'.la]ity. ,qll buildings e'~cept mills, ~actories or ware ']'he allowable xvo~kfng stress on all masonry ,construe- loe as follows: t/on stroll riot exceed one-ten*':h o1~ the required average Studding in top story .................. 2 te~t strength. ,~tudding ,~nlaporttng one story above .... 2 The mortar used for all masoury walls, fire walls, .~tudding sup,netting two stories above. foundation wails, ~'~,alls for skelel~on construction, and all Studding supporting three stor"es above..: walls bnilt of. he]low building tile or concrete block, ~tndding in c. ne-story buildings ....... shall be either Portland cement mortar, or cement.lime Underpining shall comply with the mor,'ar. tile latter in proportions not leaner than one part me, fits. Portland cement, one part lime and six parts sand by Sec. 1~. ~'here the hearing part~!t~ons volnme. twelve feet apart. the studding may be less See. 9. XVOOD FRA~YE CONSTRUCTrON~. A wood side walls. but shall not be less than 2x4 h