case studies - structural engineering firm jakarta indonesia · lateral resistant system: rc...

5/26/2014

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DAVYSUKAMTA & PARTNERSStructural Engineers

Web: www.davysukamta.comEmail: [email protected]

DAVY SUKAMTA & PARTNERS, Structural Engineers


Podium

Tower

Base Isolation

Seismic Gap

Plan and SectionOf Gudang Garam Tower

25-storySeismically Isolated Structure

Separation

Isolationlevel


Plan of Base Isolators

16 nos HDRB HH130 -6R24 nos HDRB HH150-6R

HDRB

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Outrigger

RC core wall

NomorPeriodeGetar Nomor

Periode Getar Faktor Partisipasi Mass (%)

Ragam (detik) Ragam (detik) X-trans Y-trans Rz-rotn1 1.657 1 1.657 0.00 58.08 0.012 1.453 2 1.453 54.97 0.00 0.033 1.012 3 1.012 0.01 0.00 65.31

Fixed-base Structure

Nomor Periode Getar Faktor Partisipasi Mass (%)Ragam (detik) X-trans Y-trans Rz-rotn

1 4.233 0.00 99.05 0.002 4.160 99.20 0.00 0.183 3.454 0.18 0.00 99.81

Base-isolated Structure

Dynamic Characteristic ofBased-Isolated vs Fixed-Base Structure

OutriggerColumn

1.657 sec → 4.233 sec


Lateral Resistant System: RC Corewall+Outriggerand Seismic Steel Moment Frame, with HDRB


Structural Scheme – Typical Floor

Tubular Core WallOutrigger Column


Structural Scheme – Outrigger Floor

Shear Link

Outrigger Beam

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ETABS Model BM Diagram of Core Wall

Shear Link

R1 Factor = 3/8 R

1.0 ≤≤≤≤ R1 ≤≤≤≤ 2.0

RC Core wall with OutriggerR = 3/8 x 6 = 2.25 2.0


Each bearing is tested in the manufacturer’s lab


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DAVY SUKAMTA & PARTNERS, Structural Engineers DAVY SUKAMTA & PARTNERS, Structural Engineers


Analysis Analysis Analysis Analysis ---- ModelingModelingModelingModelingGudangGudangGudangGudang GaramGaramGaramGaram TowerTowerTowerTower

Reference Code : ASCE 7-05Chapter 17 – Seismic Design Requirements for SeismicallyIsolated Structures

17.5 Equivalent Lateral Force

17.6 Dynamic Analysis

17.6.3.4 Response History (Non-Linear)

Earthquake Load:� DBE (475 yr return period) ≥ 2/3MCE� MCE (2475 yr return period)


Dynamic Characteristic of theIsolated Tower

For preliminary analysis we use RSA methodFor final design we use NLRHA methodwith three pairs of GM

Recommended Response SpectraFor 2500-year EQ, 5% damping

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Isolation Interface

Isolation System

1R

VV bS =

DD DkVb max=

superstructure

sub-structure


Point 7: The isolation system meets all of the following criteria


Analysis Analysis Analysis Analysis ---- ModelingModelingModelingModelingGudang Garam TowerGudang Garam TowerGudang Garam TowerGudang Garam Tower



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Fixed Base Structure, GG Analysis Analysis Analysis Analysis ---- ModelingModelingModelingModelingGudangGudangGudangGudang GaramGaramGaramGaram TowerTowerTowerTower


Base Isolated Structure, GGAnalysis Analysis Analysis Analysis ---- ModelingModelingModelingModelingGudangGudangGudangGudang GaramGaramGaramGaram TowerTowerTowerTower

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Ground Motions / Time SeriesFor 3-D Analysis

-Selected GM must represent theEQ mechanism

-Scaled ofr the period of interest


Seismic Sources:1. Subduction Megathrust

Megarthrust Andaman-

Sumatera

Mw=9.2 , a=4.70, b=0.83

Megarthrust Middle1 Sumatera

Mw=8.6 , a=4.71, b=0.88

Megarthrust Middle 2 Sumatera

Mw=8.5 , a=5.35, b=0.97

Megarthrust S Sumatera

Mw=8.2 , a=5.76, b=1.05

Megarthrust Jawa

Mw=8.1 , a=6.14, b=1.10 Megarthrust Sumba

Mw=7.8 , a=6.81, b=1.20

Megarthrust Timor

Mw=7.9 , a=9.09 b=1.60

Megarthrust South Banda Sea

Mw=7.4 , a=7.56 b=1.34

Megarthrust North Banda Sea

Mw=7.9 , a=6.86 b=1.20

Megarthrust North Sulawesi

Mw=8.2 , a=4.28 b=0.91

Megarthrust Philipine

Mw=8.2 , a=4.64 b=0.87

North Papua Thrust

Mw=8.2

East Molucca Sea

Mw=8.1

West Molucca Sea

Mw=7.9

Sulu Thrust

Mw=8.5


5. Toru

6. Angkola

8. Sumpur

1.Seulimeum

13. Dikit

14. Ketaun

11. Suliti 15. Musi

16. Manna

17. Kumering

18.Semangko

19.Sunda

9. Sianok

7. Barumun

4. Renun

2. Aceh3. Tripa

10. Sumani

12. Siulak50. Palu-Koro

53. Poso

58. Lawanopo

57. Gorontalo

52. Walanae 55. Tolo thrust

51. Matano

54. Batui thrust

73. Sorong-Maluku

72. Sula-Sorong

71. Tarera-Aidun

70. Yapen

75. Ransiki74. Sorong

79 Highland thrust belt

77. Manokwari trench

76. Membrano thrust tbelt

78. Lowland34. Wetar back arc

36. Flores back arc

33. Semarang

34. Jogja30. Bumiayu

32. Cimandiri

31. Baribis

2. Active faults (that have been well identified)

Seismic Sources:


Seismic Sources:

3. Shallow Background (0-50 km)

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Selected Ground Motion

Period of interest


Event Characteristic Magnitude,Mw

Distance (km) ScaleFactor

PGA (g) Source

Chi Chi (1999) Megathrust zone 7.62 117 5.3 0.18 PEER

Chi Chi (1999) Benioff zone 7.62 118 5.7 0.26 PEER

Imperial

Valley(1994)

Shallow crustal 6.50 25 1.0 0.42 PEER

Selected Ground Motion


NLRHA for base isolated tower


R=2.0 CD=2.0

R=6.0 CD=5.0

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Seismic design detailings are put in place with strict supervision to the works, starting from foundation:- Confinement of pile steel rebar- Diameter of bend- Length of hook


Base plate with long anchors and shear studs


Installation of lower base plate


Installation of upper base plateTolerance in level is 2mm

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Base plates with long bolts and shear connector


Work on mat foundationfor the tower


Base plates in placeRC Mat ready for casting


Installation of coupling beamWith diagonal reinforcement

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Erection of RC Core Wall


Erection of Steel Structure


Swing Recorder

Connection of Steel Truss to Column


Prequalified Moment Connection:Reduced Beam Section

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Detail of Column to Beam Connectionand RBS

Detail of Column ConnectionWith Full Penetration Weld


During Construction and Completed Project


Opening to facilitatethe transportation of HDRBsshould they be replacedin the future


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Horizontal Displacement MeasurementDuring Final Inspection


Vertical Displacement MeasurementDuring Final Inspection


Surface Temperature MeasurementDuring Final Inspection

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Gap Measurement


Isolated side

Non isolated

Isolated side


Examples of good detailing practice

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PURI MATAHARI TOWER

JAKARTA

27-storyBase-isolated structure


Typical Floor Plan


Section B-B

Isolation Level


Elevation View Section A-A

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Site-Specific response Spectra

Soil Profile


Base Isolation Plan

7 nos.HT070x6R

9 nos.HT120x6R

10nos.HT130x6R

12nos.HT160x6R


Sections at Isolation Level


Area Mode

Periode

Modal Participating Mass Ratios (%Mass)

(detik) Ux-Trans Uy-Trans Rt-trans

Tower

1 1.899 57.90 0.07 0.00

2 1.755 0.06 59.96 1.11

3 1.308 0.01 0.50 65.13

Base-isolated Structure

Fixed-based Structure

1.899sec 3.755sec

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Separation

At ground Floor

B


Section AGap at Basement Floor


Section B Gap at Ground Floor


Elevation View

Separation

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Typical Podium Parking Framing Plan

Honey Comb 800 mm


Outrigger Scheme

Outrigger Beam@ two locations

along the building height


Section (Honey Comb)


Typical Office Floor Framing Plan

Truss Total Depth = 1.3 m

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Section (Office Floor

Truss)


ETABS models for tower and basement


ETABS Model BM Diagram of Core Wall


Alternative Location for Base

Isolation Floor

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Scheme 1


Scheme 2


Fixed-Base Isolated Base

V=77436 kN

V=12906 kN

V=39946 kN

V=19973 kN

Non-linear Push-over Analysis

Direction


Fixed-Base Isolated Base

V=12906 kN

V=77436 kN

V=39946 kN

V=19973 kN

Non-linear Push-over Analysis

Direction

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PURI MATAHARI DJARUM HEAD OFFICE

Under Construction Coming Soon


http://www.davysukamta.com

TTTTHANK YOUHANK YOUHANK YOUHANK YOU

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case studies - structural engineering firm jakarta indonesia · lateral resistant system: rc...

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