repairstratergiesmrsbyk-150311062940-conversion-gate01.pptx

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REPAIRSTRATERGIES

6/22/16

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Sub.: MAINTAINANCE & REHABILIATION OF STRUCTURES

(3360605)

UNIT-II

Prepared By:

Mr. K.R.THANKI (BE Civil)

LECTURER CIVIL ENGINEERINGEPARTMENT

G!VERNMENT P!L" TECHNIC #$UNAGAH#GU$ARAT%INIA.


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CONTENTS:

Causes of distress in structure

Construction and design failures

Condition assessent and distress

diagnostic tec!ni"ues

Ins#ection and e$aluating daagedstructure.


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T!e reason for distress during ser$ice ist!e lac& of aintenance of t!e building'!ic! results in deterioration/aging ofaterials and structural co#onentsleading to corrosion and crac&ing.

(uildings or structures are daaged atdi)erent grades of daage '!en t!e*e+#erience e+tree loading conditionsli&e in se$ere eart!"ua&es or c*clonic

stors for '!ic! t!e* are not designed.

,actors causing (uilding istress :


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T!e* a* also fail if t!e buildingincluding t!e foundation is not#ro#erl* designed and constructedfollo'ing t!e standard Codes of#ractice. n i#ression e+ists t!attaller structures are seisicall* unsafein co#arison 'it! lo'-rise buildings.

It is to be noted t!at ost li$es 'ere lostin 0ac!c!! u3arat4 eart!"ua&e of

2551 in oneand t'o store*ed asonr*buildings. ence7 all buildings !a$e to



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Inade"uac* of design and #oor "ualit* ofconstruction and aintenance aret!erefore t!e ain reasons for t!edistress seen in buildings duringser$ice or under natural !a9ards.

T!is is because building codes andb*ela's are not conscientiousl*follo'ed in design and "ualit* ofconstruction7 norin aintenance.



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T!e current Indian standard I.S.4;building codes and guidelines in India!a$e been tested and found e)ecti$ein ac!ie$ing safet* of t!e residentsduring t!e last si+ eart!"ua&esUttar&as!i 1


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T!e building !as not s!o'n an* signsof distress and It satis@es all t!e safet*and ser$iceabilit* re"uireentsaccording to rele$ant Codes of#ractice7 !ence no action is neededto'ards retro@tting.

Condition ssessent of (uildings


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(T!e building is seen to be de@cient ordistressed4 but it can be re#aired andstrengt!ened to satisf* t!e Codalsafet* re"uireents or #erforancecriteria set b* t!e user.

Condition ssessent of (uildings


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repairstratergiesmrsbyk-150311062940-conversion-gate01.pptx

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