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HomeMy WebLinkAbout2003 Structure StudyUsing a tight hammer 1 soundedmany of the first and second floor concrete columns The ma �'� the columns did not sound soild_ removed small amounts of;interjor finishes and found the ma columnswerekid,�►"C the spelled due to rinforving steels Using labor and equfprnent shed by y Miller & Solomon, .I had the finishes for several columns on the first,second and third floors re had an interior columnm�o�r+>�d in addition,below the first floor exposed. The results from this phase of the investigation were as bad as my prior limited removal of column finishes.; Concrete'colurnns on the first ers heavily cracked arid second, arid third floors due to Nesting reinforcing steel. The selected demolition revealed more of the original structure, The roof, fourth and third floors of the building are wood jotsburnt � on clay tile exterior wall concrete and � s cvlunsrs, and interior steel beams and wood,beama. The lower floors are supported on concrete beams and columns and tit clay tileexterior walls. Following my Initial site viei alithomtery (Kaco) was retained to take concrete cores ofthe concrete columnsand make compression and chloride tests The results of tee. tests show concrete compressive strength of concrete between 1000 psi to 1300 psi and chloride content that ranged fr'orn 3 lbstyd3 to 28. lnsi . ':.72 hurt %rid: 33/55 Fox: 305/614C-3015* Attachment OriOinel to Copy toFAB "CORE NO. 5 STARTED SNEER/NG AT 8, 000 POUNDS sTARTED SNFFRjNt3 AT f000 POUNDS �les Business 2185 fl ;effi 33'785 7 -2044 Dete s, ,pie Cast:' Date Sample Tested 8103 Airti rt ssxa Chloride =374.i /c rx�. Content: Fri Tel- C Riddle Chloride Content: (2 1 t t� 3. 3 From Tent (2.215 C kipIc.r .. . Mexinhurn Chloride Content 3 752 From Tex: (2.227 Cl Range of Chtoride Co 0.046 A ChJa# (i.t►d d.rra, CI tbs Tc. {P.214 C( ;Tie rr. ) A&s Customsr: I Win_.. The results of tests P Orrriwd a rdair T ion feat methodM with FloridaDepartment � l� are as fs3s: Client ID Number: Mir aVurn,ber FOOT Project Nuttafs class. D1e Stampie Copt Date S trnpie Tested Range cif Chloride Content: Awe Chloride Corrtertt 707 I lbs.lc_y. Wag) beS Minimum Chloride . 7 k .in.). el72 "Fmrh Tit A ('2.179 Ci Middle ChlorideContnt. rrrt j Content. .709 From Test C Maximum Chloride $ / iC} fc a :j or de Content: 23 Fro,,.. Test;B ;r T s : at tests perfohned in to Trek spsrtgAtiory Test t ti!f s � AIM i �s'F� costs, yt4 pertinent c, CTlent 10'Nu.mber: Mix Num. FOOT Project Plumber: 5. From Tot- C 5.438 From Test aR 0,055 5.391 CI ttas.lc.y, The himitte of testa rtaportation Test :Met cars FloridaDe t Cate Sample Cast; [ xte Sample Tasted ...:: Weight id_y:�..;.:::;:. Mtr i .pm .Chloride Content, .: <. Mile Chloride Content.:;:..:;:.: Maximum ChlorideC.0 Range o Color Content Average Chloride Content.:...' bor 2185 Surinyclaie I 33160 `t'1 a x#t.6 of pied , �tcda ort w U Fi!Ln I r citation Test l od FM t 6 !re ;asf�: Client ID Number lac Number FOOT Project Number: - I tee Sample Est Cate Serrtp a Tested:: 5 ei�ttt (Ib$.Jc Min3rraurn Chi Content: From Term A foliddie Chloride Ctrs 4 Fmom Tow:8 Cli�ic,m).: Maximum ChIorkle Content: '�` � �'ra VCi kgfcrr$: j Rye a Chloride Content:. 748 Oa 028 Cl kgic rra.j Average Chloride Content: T suit f taws rmed ` rA;lSpO€t il T Martha F ? s Giant i O N mt or elan Diets Sample E xit Sempw Tested VA/eight Obt,tic.y.): Miimurn Chloride Mkttile Chloride Content: