Redeployment of existing coupled three legged twenty mtr height GB MARR Tower from SAI center NEHU Campus to IHM with Tower foundation Tower Erection painting ear thing at IHM Campus Mawkasiang Shillong Meghalaya

Amount

Earth work in excavation by mechanical means (Hydraulic excavator) / manual means over areas (exceeding 30cm in depth, 1.5m in width as well as 10 sqm on plan) including getting out and disposal of excavated earth, lead up to 50m and lift up to 1.5m,as directed by Engineer-in-Charge.All kinds of soil.

Filling available excavated earth (excluding rock) in trenches, plinth, sides of foundations etc. in layers not exceeding 20cm in depth, consolidating each deposited layer by ramming and watering, lead up to 50 m and lift up to 1.5 m.

Providing and laying in position cement concrete of specified grade excluding the cost of centering and shuttering - All work up to plinth level :

a) 1:2:4 (1 cement : 2 coarse sand(zone-III) : 4 graded stone aggregate 20 mm nominal size)

1:4:8 (1 Cement : 4 coarse sand (zone-III) derived from natural sources : 8 graded stone aggregate 40 mm nominal size derived from natural sources).

Providing and laying in position specified grade of reinforced cement concrete, excluding the cost of centering, shuttering, finishing and reinforcement - All work up to plinth level : 1:1.5:3 (1 cement : 1.5 coarse sand (zone-III) : 3 graded stone aggregate 20 mm nominal size).

Centering and shuttering including strutting, propping etc. and removal of form for all heights: Foundations, footings, bases of columns, etc. for mass concrete.

Steel reinforcement for R.C.C. work including straightening, cutting, bending, placing in position and binding all complete up to plinth level. Thermo-Mechanically Treated bars of grade Fe-500 D or more

Smooth finishing of the exposed surface of R.C.C. work with 6 mm thick cement mortar 1:3 (1 Cement : 3 fine sand).

Finishing walls with water proofing cement paint of required shade : New work (Two or more coats applied @ 3.84 kg/10 sqm).

Distempering with 1st quality acrylic distemper (ready mixed) having VOC content less than 50 gram/litre, of approved manufacturer, of required shade and colour all complete : New work (two or more coats) over and including water thinnable priming coat with cement primer having VOC content less than 50 gram/litre

Painting with synthetic enamel paint of approved brand and manufacture of required colour to give an even shade: Two or more coats on new work over an under coat of suitable shade with ordinary paint of approved brand and manufacture.

Demolishing cement concrete manually/ by mechanical means including disposal of material within 50 metres lead as per direction of Engineer - in - charge. Nominal concrete 1:3:6 or richer mix (i/c equivalent design mix)

Providing and fixing 16mm dia mild steel round holding down anchor bolts of 0.95m length including top threaded upto 200mm with double check nuts and washer plates etc., complete as directed by the Engg-in-charge. Rate inclusive of transportation and all taxes. Nothing extra shall be paid on any account.

Fixing bed plates, templates and anchor bolts etc. for stem of tower foundation including necessary scaffolding, working platform alround the perphery of the columns for checking and fixing of bolts,templates upto height of 2.3 Mtr,accurate positioning, levelling etc. and maintaining the position and level till casting of RCC work of columns is over and applying grease to the exposed portion as protection from rusting,etc all complete as per the directions of the Engineer-in-charge.(Note:- Any variation in centre to centre distance of anchor bolt from drawings after casting of concrete,may require dismantling and recasting of columns for accurate positioning of anchor bolts at the cost of agency).

Dismembering of 21 M high coupled 3 nos marr tower comprising structural steel standard tubular/ angular Roof top tower and vertical and horizontal cable gantry and ladder with safety rings, antenna mounts etc., of steelwork in built up sections in angles, tees, flats, channels and pipes including all gusset plates, bolts, nuts, cutting rivets, welding etc. and also the cables/pvc pipes fixed to the gantry, including dismembering, lifting and stacking etc., complete as per the directions of Engineer-in-charge. (NOTE:- The rate includes cost of all operations involved in dismantling, dismembering the tower and connected cable gantry upto the BTS room/ shelter, ladder, etc., and stacking and making arrangements for weighing of tower steel materials and submission of weighing bill, including hire charges and labour charges of tools, plants and machineries, transport to weighing machine and insurance, safety provisions, etc., all complete)

Sorting of tower material at stores or site required for erection of 21.00 m Marr mastTower in orderely manner including listing out the missing material, if any complete as directed by the Engineer-in-Charge. (Payment under this item shall be made only once for a tower material)

Transportation of 21 Metre tower material (Approx. 3 MT weight) from SAI centre (NEHU) to IHM site (approximate distance is 15 KM.) including loading,transportation from store to site,unloading, carriage from road side to work site & stacking the same, making security arrangement against theft/ loss etc.,allied activities all complete as per the directions of the Engineer-incharge.

Errection of 21M high coupled 3 no marr mast,ladders ,Vertical ,Horizontal gantry etc. including assembling, lifting, fitting and fixing in position the fabricated members with the help of bolts, nuts, washer or as directed keeping the verticallity of the errected tower on all sides within + 25mm taking all precautions against damage, accident, obtaining necessary insurance against all risk etc complete as per drawing and direction of Engineer-in-Charge.

Repainting with High Gloss Synthetic Enamel paint (Asian Apcolite / Shalimar/Berger ) in two or more coat on Tower including scrapping with wire brush, sand paper etc and applying zinc chromate yellow primer. The colour of painting shall be of International white & orange. The painting should be done in accordance with IS 1477 part - I & II . The rate includes painting of all the members such as platform, bracing, ties, strut, wave guide, antena and its fixtures, lugs, gusset plate, angle, bolts etc. complete including making necessary arrangement of safety belts, helmets to labours.

Fabricating and supplying of hot dip galvanised iron of minimum 85 microns structural member as per IS- 4759 such as angles, channels, welded lugs, platform, ladder wave guide rack, antenna fixtures, pipe stand for lightening arrester, templates, base plates, cable tray, runway etc.of required length shape and size including drilling holes for bolts etc. in exact conformity with the approved drawings and as per the direction of Engineer-in-charge as per required drawing for mobile tower . All sections are stampped with appropriate Mark Number etc. complete as directed by Engr-in- Charge. NOTES: 1. All tower materials shall be hot dipped Galvanised (Galvanising shall not be less than 85 micron) . The tower materials, fabrication and galvanizing shall be as per relevant BIS and SERC specifications. 2. Measurements: Weight of individual member shall be worked out on the basis of linear measurements and standard coefficients or actual weight. Nuts, bolts and washers shall be measured for payment. 1. All tower materials shall be hot dipped galvanized. The tower materials, fabrication and galvanizing shall be as per relevant BIS and SERC specifications.2. Measurements:Weight of individual member shall be worked out on the basis of linear measurements and standard coefficients. Nuts, bolts and washers shall be measured for payment

Supplying hot dipped Galvanised (Galvanising shall not be less than 85 micron) nuts and bolts of required size and of grade 5.6 and as per IS 12427 including spring washers confirming to IS 3063 & plain washers confirming to IS 2016 & 5369 of required thickness & diameter all complete as per direction of the Engineer - in - charge.

Providing and fixing copper Lightening arrester of 1500mm length, 25mm dia, hollow tube and of wall thickness not less than 1.60 mm including tinning the bottom portion of the spike for a length of not less than 150mm and connecting to the G.I. strip of size 50 x 3mm by means of clamps and 2nos 10mm dia brass bolts and nuts all complete as directed by the Engineer-in-charge. The lightening spike shall be fixed to the tower with Teflon sheet to avoid direct contact with the tower.

Providing and fixing LED aviation obstruction lamp of Saraj, Binoy, Aviads, Litten or equivalent make with light dependent resistance sensor (day and night automatic timer) with necessary MS brackets and MCB switches, clamps etc., complete, all as per directions of Engineer-in-charge.

Supplying & laying of 2x1.5 Sqmm armoured copper conductor Cable "Armoured/ ISI PVC Insulated & sheathed cable" of approved quality and brand including copper terminations/ Lugs etc. all complete as per directions of Engineer- in-charge. Sheath earthing for the armoured cable shall be done at minimum of two points on the tower as per the standards specified.

Supplying & laying Charcoal required for Ring earth as per specification given by the Department in excavated trench in layers of required thickness below and above GI strips as per direction of Engineer in charge.

Supplying & spreading crystal salt required for Ring earth as per specifications given by the Department in excavated trench mixed with charcoal below and above GI strips as per direction of Engineer in charge.

Providing and fixing lead strips of size 50X50X1 mm at joints of GI earthing strips as per direction of Engineer In Charge.

Supply and fixing of Galvanised steel stay wire of min. 8 mm dia. arrangement with fixing accessories and fixing properly to the swag GI poles using GI buckle , anchor etc., complete at work site all complete as per the direction of the Engineer-in-charge.