Insp Office

download Insp Office

of 21

Embed Size (px)

Transcript of Insp Office

  • 8/4/2019 Insp Office


    Building With Bamboo

    Continuing a tradition

    in modern context.



    Cochin, Kerala.

  • 8/4/2019 Insp Office


    ! Building our own office there was the needto take a step in the direction of bringingabout a paradigm shift in the use of materials.The search brought us to bamboo.

    The Context Why Bamboo?

  • 8/4/2019 Insp Office


    Potential of Bamboo

    Bamboo grows very fast and is highly renewable. To build 1000

    houses of bamboo annually, material may be taken from a 60-

    hectare bamboo plantation, which can be replaced in 5-7 years. If

    an equivalent project used timber, it would require 500 hectares

    of forest cover and it would take decades to replace.

    Bamboo, unlike cement and steel, helps in decentralizing the

    construction process which has both economic and more

    importantly ecological advantages.

  • 8/4/2019 Insp Office


    Our Forte

    Shri.KR Datye and

    Shri.Vilas N Gore are

    structural and geo-technicalengineers based in Mumbai,who have done over 20 yearsof research and field tests in

    application of bamboo as astructural material. Weturned to them for technicalsupport.

  • 8/4/2019 Insp Office


    What we wanted to be able to accommodate the

    whole of our multi-faceted staffteam.

    to retain all the trees in thepremises.

    to have optimum natural lightingin every corner during daytime,and good natural ventilation andthermal comfort.

    we were clear that what we aretrying to achieve is a modernbuilding.

  • 8/4/2019 Insp Office



    Considerations the building had to resist 200 kmphcyclonic winds and earth quake of intensitythat can occur in the region.

    weak soil.

    high water table - ground dampness.

    insect, termite and rodent attacks were alsobe prevented.

    to satisfactorily meet all of the aboverequirements at less than market costsprevalent in our area for a building havingso many features.

  • 8/4/2019 Insp Office


    The Design



    The building planning concept is

    woven around openness in plan that

    keeps the communication flowing yetmaintains privacy. The orientation of

    the building is such that the north east

    morning winds blowing over the pond

    gets cooled and flows into office areas.Passages act as buffer zones stopping

    the rain and harsh light from entering


  • 8/4/2019 Insp Office




    The Design

    The spaces can be classified into

    public, semi private, private andexecutive.

  • 8/4/2019 Insp Office




  • 8/4/2019 Insp Office



  • 8/4/2019 Insp Office


    Covering an area of 2750 Sft, our office isprobably the first and largest of its kind and anexperiment where we have attempted todevelop a technology (bamboo and reinforcedplaster) for using bamboo in floors, walls androofs in ways that meet our contemporaryneeds.

    Bamboo is used in combination with RCC(columns), ferro-cement (beams), and a limitedquantity of reinforced plaster so as to arrive at

    an attractive functional and replicablecombination of technologies.

    It is noteworthy that almost 25% of the

    bamboo used in the building was cut from theimmediate premises of the building.

    The Structure

  • 8/4/2019 Insp Office


    The Foundation

    Considering the weak soil andthe high water table thestructure stands on column

    footings about 3 feet deep.

    Standing the structure on stilts

    helped prevent the dampnessfrom seeping in and alsosafeguarded the bamboo fromtermite, insect and rodent


    The maximum load on a column

    is 30 KN and an isolated footingis provided for the foundation.

  • 8/4/2019 Insp Office


    The Floors, Walls and Roofs

    The infill floor, walls and roof of thebuilding are constructed using micro-steel

    reinforced mortar bamboo composite.

    Large glazed windows are given all along the

    inward looking walls which give ample

    protected lighting and ventilation.

    The temperature difference between the

    exterior and the interior averages 4-5degrees on a hot summer day.

  • 8/4/2019 Insp Office



  • 8/4/2019 Insp Office


    Loading The dead load of the composite is 1500 N/ m2 and the live load

    is taken as 4000 N/ m2

    The building is also analyzed for wind and earthquake loads. The

    maximum load taken by one column is 30 KN and an isolated

    footing of size 1m x 1m is provided to take the load.

    The building was monitored for two years on a weekly basis.

    Observations were made in the X, Y and Z axis for displacementand no displacement was observed.

  • 8/4/2019 Insp Office


    Preservative Treatment

    All bamboo used on the building hasbeen given preservative treatment.

    At the time of construction water basedpressure treatment with non-toxicpreservative chemicals was given.A pressure of 3.5 Kg/ cm for one hour

    was found to be sufficient to achieve aretention of more than 8 Kg/ m3

    (dry salt) in split bamboo.

    Presently we are into LOSP cold diptreatment for in-situ bamboo. It is anon-hazardous trichlorophenol

    formulation which can be used toreplace water soluble preservatives.

  • 8/4/2019 Insp Office


    Other Features

    An Anaerobic treatment plant (DEWATS) treats the sewage andwaste water generated in the office. The system consists of ananaerobic baffled reactor, planted gravel filter and polishingpond. The treated water is recycled for gardening.

    Rain water is harvested and the pond acts as a beautifullandscape element. Water proofing for pond: local clay forms

    impermeable lining in wet condition. An LDPE geofabric linerprotects the clay from drying, cracking and leaking.

    In an attempt to minimise river sand mining and itsconsequences, manufactured sand was used instead.

    Pre-cast ferro-cement beams have been used as an alternative toRCC. This reduces both the quantity of steel used and the cost.

  • 8/4/2019 Insp Office


    Significant Achievements

    Bamboo replaces almost 70% of structural cement and steel,

    without compromising on any of the qualities that make use of

    RCC popular.

    The self weight of the building is reduced by around 50% in

    comparison to a conventional building of the same nature, whichcan be very advantageous when used for a multi-storied building

    as the basic building frame can be made much lighter.

    This technology can, with some more effort, be easily adapted

    for standardization and assembly line production of

    prefabricated components.

  • 8/4/2019 Insp Office


    Inspirations award winning entry International

    Bamboo Competition, Hawaii

  • 8/4/2019 Insp Office


  • 8/4/2019 Insp Office



    Inspiration, Opp.Bhavans Vidya Mandir, Eroor (W) P.O., Thripunithura,Cochin 682 306, Kerala, India. Tel: +91-484-2779462/ 70/ 73 Fax: +91-484-2781324