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Civil Engineering Study Program, Faculty Of Engineering, Narotama University Surabaya, Indonesia
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Studi Pengaruh Temperature dan Pembuatan Beton Massa dengan Ketebalan 4 Meter (Studi Kasus : Proyek Gunawangsa Tidar Apartement Surabaya) Wardhani, Fitri Swastika; Koespiadi, Koespiadi
Ge-STRAM: Jurnal Perencanaan dan Rekayasa Sipil Vol 2, No 2: September 2019
Publisher : Department of Civil Engineering, Dr. Soetomo University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (218.002 KB) | DOI: 10.25139/jprs.v2i2.1867

Abstract

Building a building with a large and large number of foundations requires a mass casting method. In mass casting work requires observation and analysis of temperature in order to find out the peak temperature and no thermal cracks occur. In this Final Project aims to determine the effect of mass concrete temperature on the raft foundation of the Surabaya Gunawangsa Tidar Aparment Project. The project has 25 types of raft foundations, but the ones with large dimensions and mass casting are pile cap 114 and pile cap 119. Mass casting is carried out in a full day so after casting it is necessary to observe the effect of concrete temperature. The effect of temperature observed was peak temperature, temperature difference, and statistical hypothesis testing. In general, the peak temperature at ijinkam is 78.20˚ C with a difference in temperature of 20˚C. Observations on pile cap 114 and pile cap 119 are safe and have no thermal cracks.
Studi Pengaruh Temperature dan Pembuatan Beton Massa dengan Ketebalan 4 Meter (Studi Kasus : Proyek Gunawangsa Tidar Apartement Surabaya) Wardhani, Fitri Swastika; Koespiadi, Koespiadi
Ge-STRAM: Jurnal Perencanaan dan Rekayasa Sipil Vol 2 No 2: September 2019
Publisher : Universitas Dr. Soetomo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25139/jprs.v2i2.1867

Abstract

Building a building with a large and large number of foundations requires a mass casting method. In mass casting work requires observation and analysis of temperature in order to find out the peak temperature and no thermal cracks occur. In this Final Project aims to determine the effect of mass concrete temperature on the raft foundation of the Surabaya Gunawangsa Tidar Aparment Project. The project has 25 types of raft foundations, but the ones with large dimensions and mass casting are pile cap 114 and pile cap 119. Mass casting is carried out in a full day so after casting it is necessary to observe the effect of concrete temperature. The effect of temperature observed was peak temperature, temperature difference, and statistical hypothesis testing. In general, the peak temperature at ijinkam is 78.20Ëš C with a difference in temperature of 20ËšC. Observations on pile cap 114 and pile cap 119 are safe and have no thermal cracks.
Studi Pengaruh Temperature dan Pembuatan Beton Massa dengan Ketebalan 4 Meter (Studi Kasus : Proyek Gunawangsa Tidar Apartement Surabaya) Wardhani, Fitri Swastika; Koespiadi, Koespiadi
Ge-STRAM: Jurnal Perencanaan dan Rekayasa Sipil Vol. 2 No. 2: September 2019
Publisher : Universitas Dr. Soetomo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25139/jprs.v2i2.1867

Abstract

Building a building with a large and large number of foundations requires a mass casting method. In mass casting work requires observation and analysis of temperature in order to find out the peak temperature and no thermal cracks occur. In this Final Project aims to determine the effect of mass concrete temperature on the raft foundation of the Surabaya Gunawangsa Tidar Aparment Project. The project has 25 types of raft foundations, but the ones with large dimensions and mass casting are pile cap 114 and pile cap 119. Mass casting is carried out in a full day so after casting it is necessary to observe the effect of concrete temperature. The effect of temperature observed was peak temperature, temperature difference, and statistical hypothesis testing. In general, the peak temperature at ijinkam is 78.20Ëš C with a difference in temperature of 20ËšC. Observations on pile cap 114 and pile cap 119 are safe and have no thermal cracks.
Study Of Column Evaluation Of Capacity On Earthquake Load In Level Building Yoab Orlando Iek; Koespiadi Koespiadi
Journal of World Conference (JWC) Vol. 2 No. 1 (2020): January 2020
Publisher : NAROTAMA UNIVERSITY, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29138/prd.v2i1.133

Abstract

Column play an important role in bulding structure,remembering column failures wil improve the overall structure.other structure,column structural element that are vulnerable to completion failure recive earthquake loads.The structure of this bulding is located in jayapura,including in KDS D with a value of = 0,9 and =0.96 .From the result of structural analysis to the column evaluated,then the dimension of K1 100/100 (28D36,D25-100 mm , D25-150 mm and 8 D25-100 mm) K2 120/120 (28D32, D25-100 mm,D25-150 mm and 8 D25-100 mm) ,K3 130/130 (28 D 32,D25-130 mm, D25-150 and 8D25-130 mm),K4 140/140( 28 D32,D25-130 mm,D25-150 mm and 8D25-130 mm), column WF792x400x30x40, WF 800x400x30x40, WF 808x400x30x40, WF 900x400x30x40 with efficient columns such as column K1 100/100 with low prices Rp Rp.23,065,074,774.000.After analyzing the structure of a tiered bulding using the SRPMK method,it is expected to remain earthquake resisitant and have economic efficiency values
Crashing Analysis on the Construction of The First Its Tower Building Using Time Cost Trade Off Method Lindah Sri Aminingtiyas; Koespiadi; F Rooslan Edy Santosa
Journal of World Conference (JWC) Vol. 3 No. 3 (2021): May 2021
Publisher : NAROTAMA UNIVERSITY, Indonesia

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Abstract

A construction project is a series of activities carried out with a specific scope of work, time and expense according to the agreement between the project owners and the contractors. In the case of a project, it is necessary to file a task so that it can run smoothly and carry out according to plan times. An optimum time and expense analysis of the job involved time cost trade off for case studies of the advanced construction of the tower's 1 (one) located on the campus of ITS Sukolilo - Surabaya. Analysis runs to speed up project time that is tardiness with minimal costs added and should be noted on the other hand that the emphasis on activities that are on critical trajectories and have the lowest cost slope on those tracks. Steps made in this acceleration are identifications of job activity, arranging network diagrams, specifying acceleration scenarios, crashing duration and crashing cost, calculating cost slope, and do the iteration phase. After a time cost trade off analysis, it would provide output with multiple time and cost alternatives to the new project. Of the many alternatives, selected the time and expense of the completion of the project optimum. From the analysis, to complete the work at completion time according to plan, the cost increased by IDR 474.268.897,00 from IDR 9.919.982.348,00 to IDR 10.394.251.245,00 with a 32 day reduction from 180 days to 148 days so that the project could be completed as expected on March 2, 2021.
Comparative Analysis Of Implementation Methods Soldier Pile And Sheet Pile Retaining Wall On The Construction Of Gwt Pt. Ubs Surabaya Muhammad Alfian Eko Buwono; Koespiadi; Julistyana Tistogondo
Journal of World Conference (JWC) Vol. 3 No. 4 (2021): July 2021
Publisher : NAROTAMA UNIVERSITY, Indonesia

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Abstract

Generally, a basement construction requires an appropriate Earth Retaining Wall to support the development process in the area. In the project area of ??PT. UBS Surabaya has the construction of a Soldier Pile which is arranged from Bored Pile and Bentonite Pile, the construction applies the Bottom Up and Dewatering method which means that construction starts from the subgrade level firstly and then the construction work goes up. This research was aimed to examine the existing types of retaining wall (Soldier Pile) with an alternative comparison of Corrugated Concrete Sheet Pile (CCSP). This is aimed to finding the effectiveness retaining wall that has been used with another methods so that it can affect to management in terms of cost and time which has been taken. Based on the comparison result of two methods, it is found that the use of the Soldier Pile method has a cost difference of Rp. 139,533,000,- less than the Sheet Pile method. However, the implementation time of the Sheet Pile method is 28 days faster than the Soldier Pile method, with this comparison, the Sheet Pile method is considered more effectively applied with an implementation time effectiveness ratio of 36.36% considering that the development project area is close to densely populated settlements. Based on the results of the comparison of the two methods, it is found that the use of the Soldier Pile method has a cost difference of Rp. 139,533,000,- less than the Sheet Pile method. However, the implementation time of the Sheet Pile method is 28 days faster than the Soldier Pile method, with this comparison, the Sheet Pile method is considered more effectively applied with an implementation time effectiveness ratio of 36.36% considering that the development project area is close to densely populated settlements.
The Descriptive Study of Gresik Cements Product Quality: Survey on Gresik Cements Users in Surabaya Felly Febianto; Koespiadi
Journal of World Conference (JWC) Vol. 3 No. 4 (2021): July 2021
Publisher : NAROTAMA UNIVERSITY, Indonesia

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Abstract

Cement is a product that is needed in the construction of infrastructure and various kinds of buildings. The function of cement as an adhesive material in the building construction makes cement have a vital position for people. Therefore, cement producers must pay attention to the quality of cement produced to fulfill the cement supply in accordance with development needs, either quantity or quality. There are many cement producers and brands in the market, makes people have many choices of cement products that can be used. This study aims to examine the quality of Gresik cement on cement users in Rungkut District, Surabaya. The research method used is descriptive quantitative research. Data was collected by spreading questionnaire to 79 cement users who are construction workers in Rungkut District, Surabaya. These data is then processed by applying descriptive statistics supported by SPSS for Windows version 20.0 program. The results reveals that the quality of Gresik cement was categorized as good. The highest quality perceived by respondents is reliability, followed by conformance to specifications and product performance. Meanwhile, aspects that are perceived as lower by users are durability, aesthetics, and additional features.
Perencanaan Gedung 38 Lantai dengan Sistem Rangka Pemikul Momen Menengah (SRPMM) dan Bracing, Menggunakan Seismic Isolation Rega Febriana; Koespiadi Koespiadi; Hendro Sutowijoyo
Civilla : Jurnal Teknik Sipil Universitas Islam Lamongan Vol 5, No 2 (2020): September
Publisher : Litbang Pemas - Universitas Islam Lamongan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30736/cvl.v5i2.489

Abstract

Gempa bumi merupakan kejadian baik sifatnya alamiah maupun buatan manusia yang memiliki dampak kerusakan pada area tersebut, khususnya terhadap sebuah konstruksi bangunan. Untuk meminimalisir terjadinya suatu kerusakan akibat gaya gempa pada suatu struktur bangunan saat ini perkembangan yang dibuat memiliki karakteristik beragam, salah satunya merupakan teknologi base isolator lead rubber bearing yang ditempatkan pada fondasi bangunan. Penelitian ini bertujuan untuk mengetahui kemampuan struktur gedung menggunakan material baja dengan tinggi lantai 133 m dalam merespon akibat beban gempa dinamik serta simpangan pada setiap tingkat. Dari hasil analisis akhir diketahui bahwa material property baja menggunakan BJ 50 dengan dimensi profil balok induk WF 500x300, balok anak WF 400x400, kolom WF 900x400 serta breising WF 500x300 dan didapat struktur base isolator akibat beban gempa sebesar 2664.6083 kgf arah x dan arah y sebesar 2644.997 kgf dengan nilai simpangan pada setiap lantai maksimum didapat sebesar 4.862 mm arah x dan arah y 4.862 mm tidak lebih besar dari persyaratan delta izin 52 mm.
Desain Struktur Gedung 24 Lantai, Dengan Sistem Bracing, Berbasis Gaya Menggunakan LRB (Lead Rubber Bearing) Alfian Yudi Pradana Lepar; Koespiadi Koespiadi; Hendro Sutowijoyo
Civilla : Jurnal Teknik Sipil Universitas Islam Lamongan Vol 5, No 2 (2020): September
Publisher : Litbang Pemas - Universitas Islam Lamongan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30736/cvl.v5i2.496

Abstract

Salah satu upaya untuk mengurangi kerusakan akibat gempa adalah dengan menggunakan LRB (Lead Rubber Bearing). Oleh karena itu penggunaan teknologi Lead Rubber Bearing dalam mendesain gedung sangatlah diperlukan. Sistem ini akan mencegah struktur mengalami deformasi yang besar pada arah horizontal. Penelitian dilakukan dengan pemodelan struktur baja yang terdiri dari 24 lantai dengan menggunakan kolom profil WF (Wide Flange) dan balok profil WF. Metode berbasis gaya ini untuk memperkirakan berapa gaya geser saat gempa terjadi. Dalam mendesain dan menganalisis struktur gedung digunakan bantuan software ETABS dan dilakukan perhitungan secara manual berdasarkan SNI 1726:2019 dan SNI 1729:2015. Hasil yang diperoleh yaitu peningkatan periode getar struktur pada penggunaan sistem lead rubber bearing menjadi 2,946 detik dan simpangan antar lantai yang terjadi pada lantai 1 arah Y sebesar 1,769 mm, sedangkan struktur yang menggunakan sistem fixed base periode getar yang didapatkan adalah 2,866 detik dan simpangan antar lantai yang terjadi pada lantai 1 arah Y sebesar 0,71 mm
Desain Apartemen 34 Lantai (Tipe Soho) Dengan Sistem Ganda, Berbasis Gaya, Menggunakan Seismic Isolated Structure Christian Aji Perdana; Koespiadi Koespiadi; Hendro Sutowijoyo
Civilla : Jurnal Teknik Sipil Universitas Islam Lamongan Vol 5, No 2 (2020): September
Publisher : Litbang Pemas - Universitas Islam Lamongan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30736/cvl.v5i2.487

Abstract

Indonesia merupakan negara yang terletak pada daerah rawan gempa, untuk mengurangi dampak tersebut perlu konstruksi bangunan tahan gempa. Perencanaan ini bertujuam untuk mengetahui kekuatan suatu bangunan apartemen terhadap gempa yang terjadi. Dengan adanya perencanaan ini diharapkan dapat mengurangi dampak kerusakan yang sulit diprediksi Perencanaan Gedung struktur memperhitungkan beban hidup , beban gaya dan beban mati, dengan menggunakan Lead Rubber Bearing (LRB) sebagai bantalan yang telah teruji efektif untuk meredam guncangan saat terjadi getaran yang besar dan juga memperbesar periode getar struktur. Struktur dimodelakan dengan dua kondisi yaitu Fixed Base dan Isolated Base. Berdasarkan dengan gaya lateral yang terjadi pada kolom didapatkan dimensi Lead Rubber Bearing , yaitu diameter 600mm, ketebalan 600mm, dan modulus geser 0,385 MPa. Didapatkan kekanikan pada peiode getar sebesar 86% dari sebelum pemasangan Lead Rubber Bearing. Berdasarkan hasil perhitungan struktur ini, dapat disimpulkan bahwa penggunaan Lead Rubber Bearing bekerja dengan baik untuk mereduksi gaya gempa.
Co-Authors Ada Bina Avizan Adhitya Bayu Pratama Alfian Yudi Pradana Lepar Arie Marselino Liang Arthur Daniel Limantara Bayu Arkan Pambudi Christian Aji Perdana Dean Arya W. Mardilan Dermawan Zebua Diah Ayu Restuti Wulandari Dimas Bagas S.A Eva Wahyu Triliah Eva Wahyu Triliyah F Rooslan Edy Santosa Felly Febianto Fredy Kurniawan Harjian Maprilana Hendrik Sulistio Hendrik Sulistio Hendro Sutowijoyo Hendro Sutowijoyo Ice Trisnawati Julistyana Tistogondo Junizia Elsa De Almeida Kelik Dwi Dwi Kresmon Lindah Sri Aminingtiyas Makno Basoeki MHP Primasita Muhamad Ikhsan Setiawan Muhammad Alfian Eko Buwono Pujianto Pujianto PUTU IKA WAHYUNI Rega Febriana Ridwan Dwi Setiawan Rio Kurniawan Budi Soeseno Sarwono Hardjomuljadi Shufiyah Rakhmawati Sita Ramandhani Arumsari Susanto Sri Wiwoho Mudjanarko, Sri Wiwoho Suprayitno Suprayitno Tomi Admanegara Vito Adivta Nugraha Wardhani, Fitri Swastika Wardhani, Fitri Swastika Yoab Orlando Iek Yohana Pricilia