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Gd. Astawa Diputra
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KARAKTERISTIK MANAJER PROYEK TERHADAP KINERJA KONSTRUKSI GEDUNG DI KABUPATEN BADUNG I Putu Widyarsana; N. Martha Jaya; Gd. Astawa Diputra
JURNAL SPEKTRAN Vol 4 No 2 (2016): Vol. 4, No. 2, Juli 2016
Publisher : Master of Civil Engineering Program Study, Faculty of Engineering, Udayana University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (176.302 KB) | DOI: 10.24843/SPEKTRAN.2016.v04.i02.p01

Abstract

Abstract Badung regency in Bali, where the tourism industry is growing very rapidly. Building continues to grow, such as hotels, villas, resorts, hospitals, and so forth. Implementation of building construction projects in Badung not be separated from the issue of costs, quality of execution and completion time of the project. These problems arise due to lack of skills / competencies project manager of the responsibility to integrate and coordinate all available resources for the achievement of project objectives. In this case the role of Project Manager will determine the success of a project. So, there should be a study of the basic capabilities that must be owned by the Project Manager, among others: Conceptual Skills, Technical Skill, and Soft Skills. Data collection is done by the method of observation and surveys. Factor analysis was conducted to identify factors / characteristics Project Manager that affect the quality of the construction project implementation performance. Multiple linear regression analysis determined the relationship of the performance characteristics of the project manager building construction projects in Badung. Factor analysis resulted in the identification of 22 variables that affect the quality of the building construction project implementation performance. Multiple linear regression analysis determines the characteristics of the Project Manager greatest influence on the quality of the building construction project implementation performance is Social Skills aspect of 33.08% compared to the other two aspects, namely the conceptual skills (32.10%) and Technical (9.40%) . The total value of the influence of the three aspects of the characteristics of the project manager of 74.58% means that there are still approximately 25.42% influenced by other factors, such as the state of nature, the environmental situation, location, and so on, the implementation of building construction projects in Badung.
ANALISIS RISIKO PEMBANGUNAN UNDERPASS DEWA RUCI I Gede Trisna Sura Nata; I G. A Adnyana Putera; Gd. Astawa Diputra
JURNAL SPEKTRAN Vol 4 No 1 (2016): Vol. 4, No. 1, Januari 2016
Publisher : Master of Civil Engineering Program Study, Faculty of Engineering, Udayana University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (202.9 KB) | DOI: 10.24843/SPEKTRAN.2016.v04.i01.p08

Abstract

Abstract:The construction of Dewaruci Underpass was an attempt by the government to improve accessibility to support economic growth as well as to improve social welfare. The construction activities of Dewaruci Underpass can bring a wide range of risks, therefore it was conducted a research to identify the risks, assess the risks by analyzing the level of risk acceptance, risk mitigation and ownership of the dominant risk. This research was conductedbyqualitativedescriptivemethod, namely the field research, based on theliterature reviewandsupporting data. Data was collected bydistributing questionnaires tothe respondentsusingpurposive sampling method, whichsimplyselectingrespondentswho were competentandexperienced(expert) about the possiblerisksthatoccurduring theexecution ofthe construction of Dewaruci Underpass. The study was conductedin the area ofdevelopment projects of Dewaruci Underpass, JalanNgurahRaiBypass, Badung from March 2013toJune 2013. The results showedthat there were99risks identifiedand46(46.46%) of dominantriskcategory. The dominantrisks were most prevalentinthe projectrisks. There were105measuresto mitigatetheriskdominantwith 19mitigationmeasuresatan unacceptablerisk. Mostdominantrisksweretherisks ofcontractorsof41(58.57%) withsevenunacceptable risks.Thedominantrisksfor examples:disruption ofconstructiondue tothe density oftraffic, the mitigation measures were doingtraffic controlalong with the relevant agenciesandcarried out most ofthe majorworksoutsiderush hourtrafficandthe risk wasborne bythe contractor. Groundwater levelswereshallow, the mitigation measureswerepreparingdewateringwellsandthe pumpandput thework onthe drainagechannel, andthe risk wasborne bythe contractor.
APLIKASI LEAN CONSTRUCTION UNTUK MENGIDENTIFIKASI PEMBOROSAN PADA PROSES LOGISTIK PROYEK Sri Sugiantari; I G. A. Adnyana Putera; Gd. Astawa Diputra
JURNAL SPEKTRAN Vol. 3, No. 2, Juli 2015
Publisher : Master of Civil Engineering Program Study, Faculty of Engineering, Udayana University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (289.906 KB) | DOI: 10.24843/SPEKTRAN.2015.v03.i02.p01

Abstract

Construction logistics process hides some non value added activities which are difficult to avoid, those activities have extended leading time which are not only cause the delay of the project completion, but also spend more production expenses that effect to the profit itself. Data rising by questionnaire is conducted in 22 qualified contractors around Denpasar with 3 respondents in each contractor. Data raising by questionnaire is done in 2 stages, first stage is questionnaire which identify wastes. Second stage are questionnaire which determine waste causes. Field observation is aimed to create a value steam mapping of construction logistic process. It had been found 7 types of wasting which often occurs. They are the field inspection, the purchase of one type material in different suppliers, awaiting the instruction of the owner, the delay of the material transportation, the purpose of approval or additional signature, clarification needs, awaiting the instruction of the superior. Afterwards, the cause of each wasting, namely the workers inspected are less skilled, the bad quality of goods given by the suppliers, the owner procedures which require workers await the instruction before working, material loading-unloading and distribution process is too slow, a complicated bureaucratic system and unclear information. And from the observation, it is obtained that there are some non-added activities occurred throughout the value stream of the construction project logistics, among them awaiting the approval of the supervisors, transportation, awaiting the order process which is still done manually and product defects during the material selection. As a wasting reduction, it is necessary to simplify the process, create a standard operation procedure, provide enough training to the workers so they are more independent, use an information technology to ease the delivery of the report, hold a long-term contracts with the suppliers and the internal customers.
HUBUNGAN ANTARA KARAKTERISTIK BETON MENGGUNAKAN AGREGAT KASAR LIGHTWEIGHT EXPANDED CLAY AGGREGATE (LECA) I Ketut Sudarsana; I Gede Astawa Diputra; Ni Made Dwi Ari Astuti
JURNAL SPEKTRAN Vol 6 No 1 (2018): Vol. 6, No. 1, Januari 2018
Publisher : Master of Civil Engineering Program Study, Faculty of Engineering, Udayana University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (4378.591 KB)

Abstract

Lightweight concrete is a concrete made of lightweight aggregates and has a volume weight ranging from 1140-1840 kg/m3. This research was conducted to find out the correlation between concrete characteristics using LECA coarse aggregate that proportioned for lightweight concrete mixture according to SNI 03-3449-2002 standard with target compressive strength of 20 MPa, 25 MPa, and 30 MPa. The studied characteristics of the LECA concrete include the value of slump, volume weight, compressive strength, tensile strength, and modulus of elasticity. Each mix proportion was made 8 cylinder specimens of ASTM standard, so there were 24 test specimens for the three studied mixtures. The proportion of concrete mixture obtained for the target strength of 20 MPa is 1: 1.16: 2.46 with the value of cement water ratio (w/c) of 0.6, for the concrete strength of 25 MPa is 1: 0.91: 1.99 with the w/c of 0.52, and for the quality of the strength of 30 MPa is 1: 0.65: 0.94 with the w/c of 0.4. The test results obtained the mixed slump value of 155 mm, 145 mm, and 120 mm for the target concrete strength of 20 MPa, 25 MPa, and 30 MPa, respectively. The volume-weight value of LECA concrete ranges from 1564-1692 kg/m3 so that it is categorized as a lightweight concrete. The concrete compressive strength is 22 to 42% of the target concrete strength, and is categorized as a non-structural concrete. The split test tensile strength is 12 - 18% of its compressive strength. Increasing the value of LECA concrete compressive strength can also increase in its tensile strength and modulus of elasticity. Keywords: lightweight concrete, LECA aggregate, concrete characteristics, compressive strength, tensile strength.
ANALISIS KUALITAS PELAYANAN PAS BANDARA INTERNASIONAL NGURAH RAI DENGAN MENGGUNAKAN MODEL SERVQUAL I Made Suska V; N. Budiartha R. M.; Gd. Astawa Diputra
JURNAL SPEKTRAN Vol 1, No 1, Januari 2013
Publisher : Master of Civil Engineering Program Study, Faculty of Engineering, Udayana University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (124.665 KB) | DOI: 10.24843/SPEKTRAN.2013.v01.i01.p06

Abstract

Permit to a person to enter the restricted area at Ngurah Rai Airport which is called Airport Pas can be given in accordance with the duties and activities of a person at the airport. On permit service, there are disappointments and complaints of the Pas applicant that can still be found in the Pas service like duration of Pas completion and officer service at the time of application. The different perception and expectation of Pas applicant must remain in the regulation corridors and prioritize security at airports. The purpose of this research is assesing the quality of Pas service in the Airport Authority Region IV by using a SERVQUAL (Service Quality) model. The model is comparing the two main factors, namely real customer perception of the service that they received (Perceived Service) with the actual services expected/desirable (Expected Service) which consists of 5 (five) dimensions, those are Tangibles (physical), Reliability, Responsiveness, Assurance and Empathy (attention). By using these models, it is known that the quality of Pas service in the Airport Authority Region IV is still less than the expectations of the applicant and the most important dimension to enhance is Responsiveness. Gaps between perception and expectation as follows: Responsiveness (-0,2240), Assurance (-0,2171), Reliability (-0,2099), Tangibles (-0,1994), dan Empathy (-0,1373).
PERBANDINGAN BILL OF QUANTITY (BOQ) ANTARA DOKUMEN KONTRAK DENGAN HASIL PERHITUNGAN TEKLA STRUCTURES (STUDI KASUS: PROYEK GEDUNG MALL DI PULAU JAWA) Gede Astawa Diputra; Anak Agung Wiranata; Ariel Kharisma
JURNAL SPEKTRAN Vol 11 No 1 (2023)
Publisher : Master of Civil Engineering Program Study, Faculty of Engineering, Udayana University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/SPEKTRAN.2023.v11.i01.p07

Abstract

Building Information Modelling (BIM) merupakan teknologi yang dapat menggambarkan gedung seakan-akan gedung tersebut telah dibangun. BIM memberikan dorongan agar pertukaran informasi menjadi lebih cepat dan berdampak pada pelaksanaan konstruksi. Konsep BIM menggabungkan hasil dari beberapa perangkat lunak konvensional pada saat yang bersamaan, ini menunjukkan peningkatan efisiensi perencanaan proyek dan mengurangi kesalahan yang dapat terjadi dalam perhitungan volume secara manual. Penelitian ini bertujuan untuk dapat melakukan permodelan, menghitung volume pekerjaan, dan membandingkan hasil estimasi biaya proyek Tekla Structure dengan metode konvensional yang tertera di dokumen kontrak. Pemodelan 3D dilakukan berdasarkan pada gambar kerja menggunakan software Tekla Structures. Model yang telah dikerjakan kemudian dikembangkan sehingga menghasilkan informasi proyek berupa denah, potongan dan detail. Model 3D tersebut juga dapat menghasilkan data volume pada tiap item pekerjaan. Selanjutnya data voleume tersebut dikalikan dengan harga satuan untuk beton campuan dan besi per kilogramnya. Analisa data dilakukan dengan cara membandingkan biaya RAB kontrak dengan hasil estimasi BIM pada tiap item pekerjaan. Biaya yang dihasilkan menggunakan perbandingan software Tekla Structure memiliki nilai yang lebih kecil dari pada biaya RAB kontrak yaitu diperoleh sebesar 5.49%.
Co-Authors Anak Agung Diah Parami Anak Agung Wiranata Ariel Kharisma Dharmayanti, Gusti Ayu Putu Candra Gde Sukaratha I Gede Putra Pradipta I Gede Trisna Sura Nata I Gusti Agung Adnyana Putera I Ketut Sudarsana I Made Sukada Wenten I Made Suska V I Putu Swihendra I Putu Widyarsana I W. Yansen I Wayan Yansen Ida Ayu Cri Vinantya Laksmi Ida Ayu Rai Widhiawati Mayun Nadiasa N. Martha Jaya Ni Made Dwi Ari Astuti Ni Putu Eka Rahayu Damayanthi Nyoman Budiartha R.M. Putu Tegar Manggala Sri Sugiantari Wayan Yansen