呂1絲氏4

1 (課程博士(英文))Date of submission (1nonth day, year)

July 06th 2020

Department ofAI'chitecture

StudentlD Numberand civilEn部neerin曾179502

Shoji Nakazawa
SupeTvisors

TaiM saito
YUMhiro Matsumoto

APP11C田〕t's name

AlexKurniawandy

Abstract (Doctor)
Title ofThesis

Astudy ofseismic Evaluation ofExisting BU丑din套 in lndonesia

Approx 80o words

Indonesia has often suff田'ed major damaging eal'thquakes.1t is difficult to
Precisely estimate the magnitude and location of earthquakes that wiⅡ OCCUT
during the life of a buildin今. There are sti11 thousands of buildings in earthquake、prone re牙ions that feqUⅡ'e seismic evaluation and fehabilitation.1n r
ecent years, the struct1Ⅱ'e design code has experienced cl)anges significantly
because of the in仇'eased demand for structural capacity. The revision of tbe
Indonesia hazard n)ap is pToposed by refen'in曾 to the lnternational Buildin
g code where spectral acceleration values at peak 目round acceleration, at o
2 Second and l.o second were applied for 曾eneral buildings. Genefa11y, theanalysis shows the values of pGA relatively higher than in the previous lnd
Onesian code. As a Tesult, the existin号 building's are n0 10n今er meets the standard requirement of applicable eal'thquake standard、The in仇'oduction P飢't in chapter l clarifies the background pfoblems and t
he motives for perfoTming this study. The main objective is to develop a sys
tematic evaluation of existing buildings in lndonesia.1n order to achieve the objective, this resem'CI) is conducted the study of the possibility of screeni
ng evaluation in the pTelimlnary sta今e. There are fi丘eenth buildin今S evaluat
ed in chapter 2. These buildin牙S afe evaluated by Rapid visual scNening(RVS), and then the static nonlinear analysis is used to confirm the result
Of the RVS. This Rvs method can be used for the prelimil)ary evaluation for the lar今e nulnbers of buildings in a city a今ainst the earthquake Tisk.
The next stage of evaluations is a rapid evaluation method. TI)e reliability
Of this method is described in chal〕ter 3 0f this study. The rapid evaluation
has been demonstTated by selecting cases of the 6tb story steel moment'res
istin曾丘'ame system, and the loth story braced 丘'ame system. Nonlinear sta
tic and dynamic analysis is peTfの'med to confirm the result of this method
The resuH of the evaluation, theTe afe deficiencies founded in the basic configufation of the moment 丘'ame buildin男 because of non'con〕pliant in the w
eak and s0丘 Story. The stron今 Column weak beam 仇'iteria are not fulfi11ed in this buildin今.1t is confiTmed by non、1inear static and dynamic analysis,
WheN the story failuTe likely to occur in the same stories with the screening fesult. The same evaluation method is also applied in the brace frame bu

ilding. There is no soft'stoTy effect in this building, but the requb'ement of
the S仇'en今th capacity amon今 the adjacent story is insufficient. This chapter
Shows that rapid evaluation can be implemented to evaluate the existin牙 StrUcture against the risk of an earthquake
An index for evaluating the existing buildin牙 Performance is also proposed in this study. Two existin牙 bU丑dings were evaluated in chapter 4. The firstbuilding consisted of five stories, and the second has four stories. Both buiIdin晉S wefe moment、resistin今 frame system. An index is represented as theSeismic perforn〕ance of the existin今 building by f0110win曾 the Japanese standaTd. The buildin今 A has a seismic index in transversal direction lar号er than in the lon今itudinal direction. Meanwhile, building B has the same seismicindex in both directions. The application of a seismic index based on the J
apanese standard needs some adjustments for other countries.1n this study,
a set proceduTe was proposed to detern〕ine a seismic index based on the result of the pushover analysis. The result of the seismic il〕dex is higher than 北 obtained by the Japanese standard, due to the calculation of structural
Capacity was cmlied out until post elastic conditions.＼入lhile the calculation
based on the Japanese standaTd was based on the avera又e shear stTess on
the resisting elements of lateral force. F(U'tl)ermore, the seislnic demand index is also developed with the same method with f0110wing to target responSe spectrum

The dynamic seisn〕ic index dls and tl)e dynamic ductility il)dex dF of buildings, where located in lndonesia aTe in仇'oduced in this study. Both of theseindexes shoW 今ood accuracy in evaluating the seismic P田'formance of a stru
Cture. A C011ection of simulated ground motions was used in lineaT and nonHnear dynamic analysis, which had lndonesia's response spectTum code as
the tar曾et. The ductility index could be estimated by the estimation method
Without conducting the dynamic analysis in this study. Two estimation met
hods were also introduced that the fn'st was the characteristic displacelnent
response lnethod whicl) formulated from the relationship of the critical duc
tility factor μCr and the ductility index, and the second was the equivalent
Iineanzation method

Fina11y, this study concludes that several stages can be can'ied out to overcomethe problen) in evaluating the P田'fofmance of existing buildin旦S. seismic index
methods such as those conducted in Japan, W北h some adjustments, can be used as
guidelines to be applied in lndonesia to assess the P田'forn〕ance of the building
The dynalnic seismic index and ductility index Can be predicted without
Conducting' the nonlineaT dynamic analysis by using the pfoposed methods, asConfirmed in this study