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h1AY 29 '9? 15�17 PLYMOUTH DUNDEE � P.S ; <br /> , . <br />• . • Structuzal Ca�culations �ont. '8-9,9p <br /> � Roaf Beatn �alcu�ation t25' Gazebo Cz�tical) ' <br /> Farmulas: Moment M � vZ�/8 . <br /> 5hear V = v�/2 <br /> DefleCtion D = Swl9/384ET '� <br /> . w ! �l <br /> Allo�rable Moment: M = S x Fb i . <br /> Allowable Shear: V �= 2bdt�'v)I3 � <br /> Allowab�.e Def3ec��.dn: D � ],/240 <br /> S 'of 4nx4p = �.246 in4 I <br /> I of 4 x4 � 12.505 in <br /> Caculations: <br /> � Bending A}.lo�aable � 7.1�6 x ?300 �. 9289 . 8 in--lb� <br /> Max 2aad me�er wi�.}. carry � <br /> i�i�M8/1 � (g289. 8 x 8)/f 6.5 x 12� � ' 352.8 �.bs <br /> 952�5 Ib�/area (Pq3) � 952. 8/19. 54 � �8.�� <br /> Shear A23.oxable � (24.5 in2 x 7S lb/in2�I3 = ��,2.S lbs <br /> Max loac3 �ember yill �arry = <br /> w=v x 2 = 51.�.5 x 2 � 1��5 lbs <br /> 1Z25 lbs/a-ea � 1225/19.5� sf = 62 69 sf <br /> De��ect A�,�.cuable s (6.S x 12 }i 244 � .325 in 'I <br /> Max 3oad menber r�ili ca��y = <br /> w=tD}384(7�) iI)/SW1 � <br /> ( .325} i36�� i1,7.�0,000) (12.505)/�5) k6.5x12?� =� <br /> . 7�3.5 lbs/ar�a � 723.5/29.5�4 sf = 7 sf <br /> 0� tQ�e above, De�l,ect�.on Kill gavern whea deCermining mcur�t of , <br /> a11o+Nabl,e laad soemi�ez w��11 Carry. Allowab�e �.ea,c� a 4"�C9* With <br /> the ��copezty cnaracteYisLic$ g�ven on pg.2 is +equaZ to' .37 lbs/si <br /> 37 lbs/sf tot81 �lo�,d: 3.e�s 5.5 lb/s� dead lo�d (pg.l� , equals <br /> 31.4 lbs/sf live load a13.ow�ble isncW ar wznd} - <br /> Tc c�btain an al�qvable �,ive load o� �0 psE or moze, a ember with <br /> a mqdulus �f elasticity O!` 1�20A�OOE} or mexe must be sed. <br /> Note�: Net uplift due to Wind is �ess than dead laad a �'d live load : <br /> cvmbir.Ed. T2zerefore rafter ben�in5 du� to wind upl�.ft� is not <br /> crit�ica],. � <br /> , � , <br /> ��- � 0� <br /> . <br /> �1� �� '. ��. �y�5� _ <br /> page 4 �.e,�� , ��1r1� <br /> I ' <br />