22 research outputs found
Seismic Performance of an RC Building Using Pushover Analysis : (Case Study: Three-Storey Flat House Building in Padang City)
No full textIndonesia is located in a high seismic risk area, and past earthquakes have caused many death tolls due to building collapses. Therefore, evaluation of the seismic performance of existing buildings is critical to minimize the risk due to earthquake damage. This study is aimed to evaluate the seismic performance of a three-story flat house building in Padang city, Indonesia. The building was designed based on the older seismic design code SNI 1726:2012. Based on a previous study, if the structure is analyzed using the latest seismic design code SNI 1726:2019, the dynamic base shear force increases by about 20%. Therefore, further analysis needs to be conducted using pushover analysis. The pushover analysis results are capacity curve, displacement or drift, performance point, performance level, and plastic hinge mechanism of the building. The analysis results show that the performance level of the building after the pushover analysis in the x and y directions is immediate occupancy with the plastic hinged formed firstly at the end of the beam. This performance level means that the damage due to an earthquake is not so significant, and the stiffness of the building is almost the same as before the earthquake. This result is obtained because of the insignificant increase of the spectrum response parameter in SNI 1726:2019; therefore, the performance level of the building is not affected.Indonesia merupakan daerah rawan gempa dan kejadian gempa sering menyebabkan korban jiwa akibat keruntuhan bangunan. Oleh sebab itu, analisis kinerja seismik bangunan eksisting sangat perlu dilakukan guna meminimalisir resiko yang akan terjadi. Tujuan penelitian ini adalah mengevaluasi kinerja struktur suatu gedung Rusunawa bertingkat tiga di Kota Padang menggunakan metode analisis pushover dengan capacity spectrum menurut ATC-40. Gedung ini didesain berdasarkan peraturan gempa SNI 1726:2012. Berdasarkan penelitian terdahulu, jika dianalisis berdasarkan peraturan gempa terbaru SNI 1726:2019, gedung tersebut mengalami peningkatan gaya geser dinamik sekitar 20%. Oleh karena itu, gedung ini sangat perlu dianalisis lebih lanjut dengan pushover analysis. Hasil analisis pushover ini yaitu berupa kurva kapasitas, displacement atau drift, performance pont, level kinerja dan skema sendi plastis yang terjadi pada gedung tersebut. Hasil analisis menunjukan bahwa level kinerja gedung setelah dilakukan analisis pushover pada arah x dan arah y adalah immediate occupancy dengan pembentukan sendi plastis yang terjadi diawali dari ujung balok. Level kinerja ini berarti keadaan dimana kerusakan yang diakibatkan gempa bumi terhadap suatu bangunan tidak terlalu berarti, kekakuan gedung bisa dikatakan hampir sama saat sebelum terjadinya gempa. Hasil ini terjadi karena peningkatan respon spektrum yang tidak signifikan pada SNI 1726:2019, sehingga tidak berpengaruh pada level kinerja struktur
Seismic Strengthening of RC Exterior Beam-Column Joints with Deficient Beam Rebar Anchorage by Wing Walls
No full text
Seismic Performance of an RC Building Using Pushover Analysis : (Case Study: Three-Storey Flat House Building in Padang City)
No full textIndonesia is located in a high seismic risk area, and past earthquakes have caused many death tolls due to building collapses. Therefore, evaluation of the seismic performance of existing buildings is critical to minimize the risk due to earthquake damage. This study is aimed to evaluate the seismic performance of a three-story flat house building in Padang city, Indonesia. The building was designed based on the older seismic design code SNI 1726:2012. Based on a previous study, if the structure is analyzed using the latest seismic design code SNI 1726:2019, the dynamic base shear force increases by about 20%. Therefore, further analysis needs to be conducted using pushover analysis. The pushover analysis results are capacity curve, displacement or drift, performance point, performance level, and plastic hinge mechanism of the building. The analysis results show that the performance level of the building after the pushover analysis in the x and y directions is immediate occupancy with the plastic hinged formed firstly at the end of the beam. This performance level means that the damage due to an earthquake is not so significant, and the stiffness of the building is almost the same as before the earthquake. This result is obtained because of the insignificant increase of the spectrum response parameter in SNI 1726:2019; therefore, the performance level of the building is not affected.Indonesia merupakan daerah rawan gempa dan kejadian gempa sering menyebabkan korban jiwa akibat keruntuhan bangunan. Oleh sebab itu, analisis kinerja seismik bangunan eksisting sangat perlu dilakukan guna meminimalisir resiko yang akan terjadi. Tujuan penelitian ini adalah mengevaluasi kinerja struktur suatu gedung Rusunawa bertingkat tiga di Kota Padang menggunakan metode analisis pushover dengan capacity spectrum menurut ATC-40. Gedung ini didesain berdasarkan peraturan gempa SNI 1726:2012. Berdasarkan penelitian terdahulu, jika dianalisis berdasarkan peraturan gempa terbaru SNI 1726:2019, gedung tersebut mengalami peningkatan gaya geser dinamik sekitar 20%. Oleh karena itu, gedung ini sangat perlu dianalisis lebih lanjut dengan pushover analysis. Hasil analisis pushover ini yaitu berupa kurva kapasitas, displacement atau drift, performance pont, level kinerja dan skema sendi plastis yang terjadi pada gedung tersebut. Hasil analisis menunjukan bahwa level kinerja gedung setelah dilakukan analisis pushover pada arah x dan arah y adalah immediate occupancy dengan pembentukan sendi plastis yang terjadi diawali dari ujung balok. Level kinerja ini berarti keadaan dimana kerusakan yang diakibatkan gempa bumi terhadap suatu bangunan tidak terlalu berarti, kekakuan gedung bisa dikatakan hampir sama saat sebelum terjadinya gempa. Hasil ini terjadi karena peningkatan respon spektrum yang tidak signifikan pada SNI 1726:2019, sehingga tidak berpengaruh pada level kinerja struktur
Pengaruh Penambahan Zat Aditif Fosroc Conplast R dan Fosroc SP 337 Terhadap Kuat Tekan Beton Dengan Variasi Kadar Air: Effect Of Fosroc Conplast R and Fosroc SP 337 Additives On The Compressive Strength Of Concrete With Variation Of Water-Cement Ratio
No full textFosroc Conplast R and Fosroc SP 337 are additives for the concrete mixture which are used to delay the setting time of the concrete mixture, thus, it can extend the time for the concreting work. Previous studies have verified that the addition of Fosroc SP 337 and/or Fosroc Complast R additives increases the compressive strength of concrete, but no previous studies have investigated the effect of adding these additives on the compressive strength of concrete with variations in water-cement ratio. Therefore, this research is conducted to investigate the effect of adding Fosroc Conplast R and Fosroc SP 337 additives on the compressive strength of concrete with variations in water-cement ratio, by conducting the test on properties of the materials for designing the concrete mixture proportion, then the compressive strength test is conducted and the compressive strength of concrete is compared with the design compressive strength based on SNI 03-2834-2000. The compressive strength test was conducted at the concrete age of 7 and 28. Concrete with the addition of 1% Fosroc Conplast R and 1% Fosroc SP 337 additives, produces a higher compressive strength than the design strength of normal concrete without additives, thus, this additive is applicable to extend the time for the concreting work in the construction fiel
Tinjauan Tipikal Detail Rangka Beton Bertulang Berdasarkan Ketentuan Detailing Sistem Rangka Pemikul Momen Khusus Untuk Bangunan Ruko Bertingkat Dua di Kota Padang
No full textAbstrak Gempa pada tahun 2009 di Kota Padang menyebabkan banyak kerusakan pada bangunan gedung, terutama pada bangunan ruko bertingkat dua. Runtuhnya bangunan ini diakibatkan karena bangunan tersebut sudah tidak bisa menahan beban seismik dan/atau tidak memenuhi ketentuan detailing untuk struktur tahan gempa. Penelitian ini bertujuan untuk mendesain bangunan tipikal ruko yang mampu menahan beban seismik dan memenuhi ketentuan detailing untuk SRPMK (Sistem Rangka Pemikul Momen Khusus), berdasarkan peraturan SNI 1726:2019 dan SNI 2847:2019. Penelitian ini meninjau dua model tipikal gedung ruko dengan panjang bentang yang berbeda dan dianalisis menggunakan aplikasi SAP 2000. Detailing elemen stuktur kolom dan balok didesain manual berdasarkan persyaratan untuk SRPMK. Hasil analisis struktur menunjukkan bahwa untuk kedua model gedung, simpangan antar lantai (drift) kecil dari simpangan izin, yang berarti ukuran penampang elemen beton bertulang yang digunakan telah memenuhi syarat. Dari hasil penelitian ini, didapatkan tipikal desain rangka (kolom dan balok) untuk struktur bangunan bertingkat dua di Kota Padang sebanyak dua model dengan panjang bentang bangunan beragam, yang dapat menjadi pedoman untuk detail struktur untuk tipikal bangunan ruko dua tingkat di Kota Padang. Kata kunci: detailing, kolom kuat balok lemah, rumah toko, sistem rangka pemikul momen khusus, gedung tahan gempa Abstract The 2009 earthquake in Padang city caused severe damage to many buildings, particularly shophouse buildings. The buildings collapsed because they couldnt resist the seismic load and/or didnt satisfy the requirement of detailing for seismic-resistant buildings. This study aims to design a typical shophouse building that can resist the seismic load and satisfy the requirement for the detailing of SMRF (Special Moment Resisting Frame), based on the design codes of SNI 2847:2019 and SNI 1726:2019. This study considers two building models with different span lengths and the structural analysis was conducted using SAP 2000. Detailing for columns and beams was designed based on requirements for SMRF. The results of the structural analysis showed that the story drift of both building models is smaller than the allowable drift, which means that the cross-sectional size of the reinforced concrete elements has met the requirements. The results of this study are the typical frame design (columns and beams) for two-story buildings in the city of Padang for two models with various spans, which can be used as guidelines for structural details for a typical two-story shophouse building in Padang City. Keywords: detailing, strong column weak beam, shophouse, special moment resisting frame, seismic resistant buildin
Analysis of Cash Flow Reports for Management Decision Making at PT. Ira Widya Utama & Group Medan
No full text60 HalamanArus Kas Merupakan Keluar Dah Masuknya Uang Dalam Sebuah Perusahaan Dalam
Satu Periode Tertentu, Atau Yang Sering Disebut Dengan Arus Kas Keluar Dan Masuk Dalam
Suatu Perusahaan. Arus Kas Dalam Perusahaan Dapat J Uga Digunakan Sebagai Dasar
Pengukur Kemampuan Perusahaan Didalam Mengelola Usahanya Apakah Dapat Mengalami
Peningkatan Dari Tahun Ebelumnya Atau Sebaliknya.
Berdasarkan Hasil Anaiisis Dan Evaluasi Atas Data Dan Informasi Yang Diperoleh
Penulis Dari Objek Penelitian Pt. Ira Widya Utama Maka Penulis Berkesimpulan :
Pt. Ira Widya Utama Menggunakan Metode Tidak Langsung Dalam Penyusunan
Laporan Arus Kas Nya, Dalam Hal Ini Dilakukan Dengan Menyesuaikan Jumlah Yang
Dilaporkan Sebagai Laba Bersih. Arus Kas Bersih Mengalami Kenaikan, Ini Disebabkan
Ikarena Arus Kas Masuk Lebih Besar Dibandingkan Dengan Arus Kas Keluar. Arus Kas Dari
Aktivitas Operasi Yang Jumlahnya Relatif Besar Adalah Penggunaan Untuk Piutang Direksi.
Sehubungan Dengan Kesimpulan Tersebut Diatas Penulis Menganjurkan Saran, Yaitu :
Agar Manajemen Perusahaan Memperhatikan Penggunaan Laporan Arus Kas Secara Optimal
Untuk Melakukan Analisis Laporan Arus K:As, Dalam Pendanaan Uang Muka Penjualan
Disarankan Membiayai Dari Hutang Jangka Panjang Dan Bukan Dari Hutang Lancar Karena
Hal Ini Menyebabkan Tingkat Likuiditas Terganggu. Dan Disarankan J Uga Agar Perusahaan
Mengurangi Pemberian Piutang Sehingga Dapat Mengurangi Beban Perusahaan Sehingga
Perusahaan Dapat Mempertahankan Laba Tahun Ini Agar Tidak Mengalami Kerugian Yang
Cukup Besar Seperti Tahun Sebelumnya.
Cash flow is the entry and exit of money in a company
One Certain Period, Or What Is Often Referred To As Cash Flows Out And In
A company. Cash Flow Within The Company Can Also Be Used As A Basis
Measuring the Company's Capability in Managing Its Business Can Experience
An Increase From The Previous Year Or Vice versa.
Based on the results of the analysis and evaluation of the data and information obtained
Author of Pt Research Object. Ira Widya Utama Then the Author Concludes:
Pt. Ira Widya Utama Uses the Indirect Method in Compilation
His Statement of Cash Flows, In This Case Is Done By Adjusting The Amount
Reported as Net Income. Net Cash Flow Has Increased, This Is Caused
This is because the incoming cash flow is greater than the outgoing cash flow. Cash Flow From
Operating Activities, which are relatively large in number, are used for Directors' Receivables.
In connection with the conclusions mentioned above, the author recommends suggestions, namely:
So that Company Management Pays Attention to Optimal Use of Cash Flow Reports
To Perform K:As Flow Statement Analysis, In Sales Advance Funding
It is recommended to finance from long-term debt and not from current debt
This Causing Disturbed Liquidity Levels. And it is also recommended that the company
Reducing the Provision of Receivables So as to Reduce the Company's Expenses
Companies Can Maintain Profits This Year So as Not to Experiencing Losses
Big Enough Like Previous Years
Common Structural Details and Deficiencies in Indonesian RC Buildings: Preliminary Report on Field Investigation in Padang City, West Sumatra
No full textKRITIK TERHADAP PSAK PERBANKAN SYARIAH IAI DAN AAOIFI
No full textThe Conceptual framework for presentation of financial statement of Islamic bank and Accounting standards for Islamic banking have been formulated by Indonesian Asso-ciation of Accountants (cooperated with Bank Indonesia, Indonesia central bank.. The standards are called PSAK (Pemyataan Standard Akuntansi Keuangan). The frame-work and the standards, mainly, has refered to the MOIFI standard for Islamic bank-ing. This paper discusses the the content of the those two promulgations (MOIFI and PSAK) and also criticizes the lack of lawhid" concept in those two. The author argues that those two standards still based on the conventional accounting philosophy in which the capitalist interest is mainly the focus of the information disclosure.Keywords: Islamic accounting, accounting standard, Islamic banking, Indonesian accounting standard (PSAK)</jats:p
