ANALISIS PENGARUH VARIABILITAS TANAH PADA VARIABILITAS SPEKTRUM RESPON GEMPABUMI
Item
Title (Dublin Core)
ANALISIS PENGARUH VARIABILITAS TANAH PADA VARIABILITAS SPEKTRUM RESPON GEMPABUMI
Description (Dublin Core)
Salah satu komplek perkantoran yang terletak di Jalan Thamrin, Jakarta, dipilih sebagai lokasi penelitian. Hasil pemodelan data tanah, menghasilkan 3 lapisan tanah yang berbeda dengan kriteria jenis tanahnya cenderung lunak, dengan nilai N-SPT rata–rata = 11,23. Perhitungan percepatan puncak muka tanah (PGA) dan nilai spektrum respon di permukaan tanah menggunakan metoda analisis linier equivalen dengan simulasi Monte Carlo. Program aplikasi SHAKE2000 merupakan alat bantu dalam simulasi, dengan memasukkan beberapa asumsi sebagai data masukan. Data masukan dinamik menggunakan sumber gempabumi Elcentro dan Mexico yang mempunyai kandungan frekuensi berbeda. Asumsi nilai percepatan puncak batuan dasar (PBA) untuk kedua sumber gempabumi tersebut sebesar 0,18 g. Hasil analisis menunjukkan nilai spektrum respon dan percepatan puncak muka tanah sangat bervariasi. Gempabumi Elcentro menghasilkan nilai rata–rata PGA = 0,36 g dengan spektrum responnya = 1,0 g pada Tc = 0,6 detik. Untuk gempabumi Mexico menghasilkan nilai rata–rata PGA = 0,30 g dengan spektrum responnya = 0,9 g pada Tc = 0,6 detik. Artinya, variabilitas jenis tanah sangat berpengaruh tehadap variabilitas spektrum respon di permukaan tanah.
One of the office complex located at Jalan Thamrin, Jakarta, was chosen as the location of the reseach. Results of data modeling soil, produces 3 different soil layers with soil type criteria tend to be soft, with a value of N-SPT average = 11.23. Calculation of peak ground acceleration (PGA) and the value of the response spectrum at ground surface using the method of equivalent linear analysis with Monte Carlo simulation. SHAKE2000 application software is a tool in the simulation, by including some assumptions as input data. Dynamic input data using Elcentro and Mexican earthquakes which have different frequency contents. Assumed value of peak base acceleration (PBA) for the two earthquakes was 0.18 g. The result of analysis was the value of response spectrum and peak ground acceleration is very different variable. Elcentro earthquake result average value of PGA = 0.36 g with the response spectrum = 0.6 sec at Tc = 1.0 g. For Mexican earthquake result average value of PGA = 0.30 g with the response spectrum = 0.6 sec at Tc = 0.9 g. That is , the variability of the soil types was influential affect the variability of the response spectrum at ground surface
One of the office complex located at Jalan Thamrin, Jakarta, was chosen as the location of the reseach. Results of data modeling soil, produces 3 different soil layers with soil type criteria tend to be soft, with a value of N-SPT average = 11.23. Calculation of peak ground acceleration (PGA) and the value of the response spectrum at ground surface using the method of equivalent linear analysis with Monte Carlo simulation. SHAKE2000 application software is a tool in the simulation, by including some assumptions as input data. Dynamic input data using Elcentro and Mexican earthquakes which have different frequency contents. Assumed value of peak base acceleration (PBA) for the two earthquakes was 0.18 g. The result of analysis was the value of response spectrum and peak ground acceleration is very different variable. Elcentro earthquake result average value of PGA = 0.36 g with the response spectrum = 0.6 sec at Tc = 1.0 g. For Mexican earthquake result average value of PGA = 0.30 g with the response spectrum = 0.6 sec at Tc = 0.9 g. That is , the variability of the soil types was influential affect the variability of the response spectrum at ground surface
Creator (Dublin Core)
I Nyoman Sukanta
Widjojo A. Prakoso
Subject (Dublin Core)
jenis tanah
PGA
PBA
analisis linier equivalen
spektrum respon
Meteorology. Climatology
QC851-999
Geophysics. Cosmic physics
QC801-809
Publisher (Dublin Core)
Pusat Penelitian dan Pengembangan Badan Meteorologi Klimatologi dan Geofisika
Date (Dublin Core)
2010-11-01T00:00:00Z
Type (Dublin Core)
article
Identifier (Dublin Core)
1411-3082
2527-5372
10.31172/jmg.v11i2.75
https://doaj.org/article/bd6b71aaebda48b2848c19e9a5af1ec7
Source (Dublin Core)
Jurnal Meteorologi dan Geofisika, Vol 11, Iss 2 (2010)
Language (Dublin Core)
EN
ID
Relation (Dublin Core)
http://puslitbang.bmkg.go.id/jmg/index.php/jmg/article/view/75
https://doaj.org/toc/1411-3082
https://doaj.org/toc/2527-5372
Provenance (Dublin Core)
Journal Licence: CC BY-NC