If your sheet is macro disable then do it enable.This Excel Sheet is The Solution For Different Type of Slab Design.In this Excel Sheet Seen Yellow Cell is the Data that we have to Input Man…Full description
cantilever slabFull description
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tjrel
Waffle Slab
Descripción: slab
this is the spreed sheet prepared in excell in checking shear action in flat slab desing
excel design sheetFull description
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report on waffle slabFull description
this is the spreed sheet prepared in excell in checking shear action in flat slab desing
Real Challenges for Civil Engineers – No.01 Engineering challenge – Introduce a Balcony slab to existing building Client requirement – Parapet wall around the balcony for safety
Bric wall
Bric wall
2lab to introduce
Existing Beam Existing 2lab
Conventional Methods – Option 1
Brea the existing slab to the extent of anchorage length of proposed slab reinforcement Problems Encountered Encountered
!" Breaing of concrete slab and beam may weaen the structure #" $o support for bric wall on top leads to develop cracs on the wall %" &ifficulties in re'concreting (" )ther structures may affect due to vibration while concrete breaing *" Minimum ( days will be taen to complete the tas +" ,dditional supports to be provided for the existing slab for few days -" .is for the /ob 0" 1igh cost incurred at the end of the /ob
Option 2
Provide fabricated cantilevered angle iron frame to support the slab Problems Encountered
!" Problem in fixing of cantilevered frame to the beam #" 3npleasant architectural appearance %" Minimum ( days will be taen to complete the tas (" .is for the /ob *" 1igh cost incurred at the end of the /ob
New Method introduced by the HI!I with the develo"#ent of !echnology &rill holes to the existing concrete beam and fix reinforcement with HI!I RE $00 bonding agent Advantages
!" $o concrete breaing is required #" $o additional support needed to support existing concrete %" $o vibration and hence no chance to develop cracs (" Maximum # days to complete the total tas *" Easy for concreting +" 4ow cost 5 less than .s"!*67' to fix 8!6 bar at nominal embedment depth 9 -" ,pplication is so simple and no chance for mistaes 0" $o ris for the /ob :" Pullout test will be done by HI!I Engineers before concreting to ensure the strength !6" ,ll technical support will be given by HI!I Engineers !!" ,rchitecturally loos lie originally cast slab
Method state#ent !" #" %" (" *"
Consult your structural Engineer for the design of cantilever slab reinforcement Call HI!I Engineer to get instruction for reinforcement fixing &rill holes to specified diameter and depth Clean holes with blow out pump provided Insert HI!I RE $00 chemical with the use of dispenser provided 5 $o hand mixing9 +" Insert the reinforcement bars and eep 0 hrs to cure -" ,rrange reinforcement as usual 0" .oughen the concrete surface and apply any bonding agent if necessary and do the concreting as usual
%a#"le calculation &ssu#"tions ' Consider !m strip of concrete • Concrete grade #*$7mm# • 2lab thicness #66mm at support • 2tructural Engineer recommend to have 8!6 ; !*6 mm c7c • Moment develop at the support of new cantilever slab M < #6 $m7m •
M<=>? where = < ultimate tension develop in the reinforcement at support 5 for !m 9 ? < lever arm < 6"--*d < 6"--*5#66 – #*9 < !%*"+mm = < M7? < #6 7 6"!%+ < !(- $ =ension of single reinforcement < !(-7 5!6667!*69 < ## $
Check for concrete / bond failure ,ccording to the 1I4=I specifications for embedment depth !06mm =ension capacity of 8 !6 bar with .E *66 < !:"- x !067:6 x !"6% x 6": < %+"* @ ## $ 2atisfactory
Check for steel failure =ension capacity of 8!6 < 6"0-fy",s < 6"0- A (+6 A -0"* < %!"( $ 1ence application is satisfactory with 2afety actor of %!"(7## < !"( Hole dia#eter ( 1)## Hole de"th ( 1*0 ## che#ical consu#"tion ( 1* #l
