Design Fabrication and roofing Ward Block

Amount

Preparing the surface of the terrace slab to install base plates of steel columns including removing the brick bat coba, water proofing membrane, I. P. S. , and carting away the debris

Providing and installing anchor rods in drilled holes and fixing with adhesives for anchoring base plates of columns to terrace slab. System of Hilti India shall be used with brand name HIT-RE 500 V3 + HIT-V(5.8) M16 meaning anchor rod nominal diameter 16 mm, embedment depth in RCC 115 mm total length of rod 185 mm. The rod shall be fully threaded for its entire length. The adhesive (injectable mortar) shall be HIT-RE 500 V3. The hole in steel baseplate shall be 18 mm. The hole in RCC shall be 18 mm. diameter. The method of drlling holes, cleaning the holes and injecting the adhesive shall be as specified by Hilti. The tools and equipment such as drill machine, blow pump, injecting gun etc. shall be those prescribed by Hilti. A washer and nut shall be provided. Minor levelling shall be done by providing a thin layer of suitable grout. If existing slab is not in level and major adjustment is required it shall be done in steel work by adjusting the level of purlins. Mode of measuremments : The number of rods installed shall be count.

Providing Hilti chemical anchors for connecting proposed steel rafters to existing RCC columns. Anchor rod HIT-V 5.8 M16X165 with adhesive Injectable mortar HIT RE 500. Suitable for shear loads without tensile force specifications same as for item 3.00 above but with lesser embedment depth in RCC.

Providing structural steel (mild steel as defined in IS 800-2007 clause 2.2)for frame work of the proposed structure including fabricating, cutting, welding, rivetting, bolting, erection and 2 coat enamel painting with one coat of primer.

Providing metal roofing sheets manufactured from zinc/ aluminum alloy colour coated fromn high tensile steel minimum yield strength 550 Mpa; total coated thickness 0.60 mm. profile and colour as approved by the architect ; generally as per DURASHINE Brand marketed by Tata Bluescope steel or equivalent including fixing as per manufacturers recommendations and including flashings and accessories such as ridges, corner flashings, end flashings and galvanised fasteners from reputedmanufacturers such as Mark Fasteners. For correct levelling and alignment of sheets height of purlin tops shall be adjusted as provided in purlin connections. Mode Of Measurements: Plain area in the inclined plane of sheets shall be measured. Nothing extra shall be added for collugations, profile, side laps, end laps etc.

Providing and installing pProviding valleys of 90 cm wide overall in plain G.S. sheet fixed with polymer coated J, or L hooks, bolts and nuts 8 mm dia G.I. limpet and bitumen washers complete : 1.60 mm thick with zinc coating not less than 350 gm/m²

Painting with synthetic enamel paint of approved brand and manufacture to give an even shade : Two or more coats on new work

Water proofing the portion around the base plates including covering the base plates and bolt shafts with chemical based cement : sand mortar

Plain cement concrete at any level (PCC 1:3:6 ) using graced stone aggregate of 20mm / 40mm max. size including consolidation usingvibrator & needle if required finishing, curing, form work shuttering, centering etc. complete all as per specification and in quantity as & when reqquired by the Engineer-in-Charge, Agency can arrange Ultra Tech Ready Mix Concrete if permited by the dept.

Providing and fixing G.I. chain link fabric fencing of required width in mesh size 50x50 mm including strengthening with 2 mm dia wire or nuts, bolts and washers as required complete as per the direction of Engineer-in-charge.

Removing existing terrese water proofing and disposing the debries out of ACTREC premises, cleaing the surface complete as directed & instructed.

New terrace water proofing with Brick bat coba With average thickness of 120 mm and minimum thickness at khurra as 65 mm.

Appointment of registered Structural designer & consultant for preparing Architectural & Structural detailed design & drawings for MS structure & roof covering, including making site visits during construction period and issuing Structural stability cetificate after completion of entire work.

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