Kohinoor Square

Kohinoor Square is being constructed as an iconic commercial complex in Dadar (W), quite literally in the heart of Mumbai. When completed, the multi-building project, punctuated by two towers a 201m diamond-shaped iconic tower and its 117m fraternal twin tower- will be the most striking and innovative structure in Mumbai. Development, Information Technology Park & World-Class infrastructure has been provided. The Kohinoor Diamond concept continues to inspire the search for abstract patterns reflecting the diamond’s geometry of faceted triangulation. Project Details Project Location: Mumbai Client: Kohinoor CTNL Infrastructure Company Limited Total Site Area: 5 acre Total Built-up Area: 25,50,580 square feet Project Cost: Rs. 700 Crores Project Team Project Management: Fairwood Consultants Private Limited Architect: gkk works, US & SAA Architects, India Structural Engineer: Thornton Tomasetti, US & Mahimtura Consultants, India Vertical Transportation: Lerch Bates, Inc, US Parking: International Parking Design, Inc., US & India Code Analysis: Schirmer Engineering Corporation, US MEP Engineering: Buro Happold Consulting Engineers Limited, UK Spectral Services Consultants Private Limited, India Wind Tunnel Consultant: Rowan Williams Davies & Irwin, Inc., Canada & India Aviation Consultant: Aviacon Principal Contractor: L&T Project Status: On-going

The Project involves commercial real estate development of 14.74 lac sq ft, with the principal high rise tower planned in an exquisite 50 storey diamond shaped office complex. Additionally, a 14 floor public car park with a shorter 18 storey office tower atop and another 6 storey retail space is also proposed. The aggregate cost of the project is estimated at Rs. 2100 crore KCICL is promoted by the Kohinoor Group, who hold a predominant share in the project. IIRF India Realty VII Ltd. (IIRF – 7), the Real Estate Fund advised and managed by IL&FS Investment Managers Limited (“IIML”), holds a 40% share in the project IL&FS Financial Services Ltd (IFIN) has fully tied up debt of Rs 936 cr for ‘Kohinoor Square’, an iconic commercial real estate project being developed by KCICL at at Dadar (West), Mumbai. This is one largest Project Financing achieved in the Indian markets for a commercial real estate project, in recent times. The combined Loan and Security Documents for the Project were executed on June 1, 2010 in Mumbai, with a consortium of Ten Banks participating in the project. State Bank of India is the Lead Bank.

Coupling:The traditional method of connecting reinforcement bars with lap joints continuity in reinforced concrete need not be always appropriate. Advantages of simplicity and economy in lap splicing is limited to smaller diameter bars, mechanical couplers offer the solution for splicing when large diameter bars are involved. Technically Superior: Spliced rebar performs like continuous reinforcement. Splicing develops strength mechanically, independent of concrete. Therefore provides ductility in RCC structures independent of condition of concrete. Proven cyclic performence of spliced rebar offers strength during man-made, seismic or other natural events. The continuity of spliced rebar offers excellent provision for grounding electrical current. coupler reduces rebar congestion and improves concrete flow & consolidation. It offers greater flexibility in design options. The simplicity in detailing of reinforcement, particularly in reinforcement congestion zones minimizes the reinforcement fixing errors, detailing and fixing of seismic reinforcement becomes effortless. Workability with higher steel-to-concrete ratio allows optimum sizing of RCC structural members. coupler offers quality, cost and time saving. Fixing couplers requires no special skills or equipments. Simple mechanical ways in adopting mechanical splicing compared to lapping, accelerates construction schedules for optimum cost and efficiency. Handling the rebar in convenient sizes saves on valuable crane time. It is economical to use couplers for higher diameter rebar as it saves on considerable weight and rebar wastage. Special application for micro-piling, piling, slope protection, pre-cast concrete, slip-forming, formwork protection, top-down construction makes coupler as a part of any major project.

Core Tube Structural system In kohinoor square the method of core tude construction is use.The tube system concept is based on the idea that a building can be designed to resist lateral loads by designing it as a hollow cantilever perpendicular to the ground. In the simplest incarnation of the tube, the perimeter of the exterior consists of closely spaced columns that are tied together with deep spandrel beams through moment connections. This assembly of columns and beams forms a rigid frame that amounts to a dense and strong structural wall along the exterior of the building.[3] This exterior framing is designed sufficiently strong to resist all lateral loads on the building, thereby allowing the interior of the building to be simply framed for gravity loads. Interior columns are comparatively few and located at the core. The distance between the exterior and the core frames is spanned with beams or trusses and intentionally left column-free. This maximizes the effectiveness of the perimeter tube by transferring some of the gravity loads within the structure to it and increases its ability to resist overturning due to lateral loads. In the construction of Kohinoor Square’s core wall self climbing jump form work is usedjump form systems comprise the formwork and working platforms for cleaning/fixing of the formwork, steel fixing and concreting. The formwork supports itself on the concrete cast earlier so does not rely on support or access from other parts of the building or permanent works. Jump form, here taken to include systems often described as climbing form, is suitable for construction of multi-storey vertical concrete elements in high-rise structures, such as shear walls, core walls, lift shafts, stair shafts and bridge pylons. These are constructed in a staged process. It is a highly productive system designed to increase speed and efficiency while minimising labour and crane time. Systems are normally modular and can be joined to form long lengths to suit varying construction geometries. Self-climbing jump form – does not require a crane as it climbs on rails up the building by means of hydraulic jacks, or by jacking the platforms off internal recesses

in the structure. It is possible to link the hydraulic jacks and lift multiple units in a single operation.