scholarly journals ANALISIS FAKTOR-FAKTOR PENYEBAB KETERLAMBATAN WAKTU PADA PEKERJAAN BASEMENT GEDUNG BERTINGKAT SEMI TOP-DOWN

2020 ◽  
Vol 3 (4) ◽  
pp. 1335
Author(s):  
Joshua Wangsadiputra ◽  
Jane Sekarsari
Keyword(s):  
Construction Project ◽  
Test Reliability ◽  
Relative Importance ◽  
Top Down ◽  
Building Projects ◽  
Productivity Level ◽  
High Rise ◽  
High Rise Building ◽  
Importance Index ◽  
Building Project

Time delays in construction project will be very detrimental for both the provider and user of construction service because it can cause a conflict which leads to time demand and additional cost. The timeliness in construction of basement is one of the important aspect to gain a success at construction project, remembering basement is an early phase of development at high-rise building project. The purpose of this study is to analyze the factors that can cause time delay in high-rise building semi top-down basement work. The research method used in this study is quantitative and descriptive approach with questionnaire distribution to some high-rise building projects with semi top-down basement. With the help of SPSS software, next step is to analyzing the data in the form of a validity test, reliability test, normality test, and Relative Importance Index (RII) test. The result of this study shows 5 factors that cause the most influence the delay of semi top-down basement work based on the importance ranking is variation and changes of order by owner, low productivity level of labors, leak on the diaphragm wall, repeated changes rebar layout due to space that too narrow, and material delivery delays. ABSTRAKKeterlambatan waktu pada pelaksanaan proyek akan sangat merugikan para pelaku jasa konstruksi karena dapat menyebabkan konflik yang berujung terjadinya tuntutan waktu dan biaya tambahan. Ketepatan waktu pada pekerjaan basement merupakan salah satu aspek penting dalam kelancaran suatu proyek konstruksi, mengingat basement merupakan salah satu pembangunan tahap awal pada proyek gedung bertingkat. Penelitian ini bertujuan untuk menganalisa faktor-faktor yang dapat mempengaruhi keterlambatan waktu pada pekerjaan basement semi-top down. Metode penelitian yang digunakan pada studi ini adalah pendekatan secara deskriptif kuantitatif dengan penyebaran kuesioner kepada beberapa proyek gedung bertingkat dengan basement semi top-down. Selanjutnya, dilakukan pengolahan data dengan bantuan software SPSS berupa uji validitas, uji reliabilitas, uji normalitas, dan Relative Importance Index (RII). Hasil penelitian menunjukkan, terdapat 5 faktor yang paling mempengaruhi keterlambatan pekerjaan basement semi top-down menurut tingkat pengaruhnya yaitu perubahan perintah kerja dan variasi dari owner, produktivitas pekerja lapangan yang rendah, terjadi kebocoran pada Dinding Penahan Tanah (DPT), pengaturan tata letak penyimpanan tulangan yang berulang-ulang akibat lahan yang terlalu sempit, dan pengiriman material yang terlambat.

scholarly journals An Analysis of Construction Failure Factors to Stakeholder Coordinating Performance in the Finishing Phase of High-Rise Building Projects

2020 ◽  
Vol 2020 ◽  
pp. 1-14
Author(s):  
Viet T. Nguyen ◽  
Sy T. Do ◽  
Nhat M. Vo ◽  
Thu A. Nguyen ◽  
Son V. H. Pham
Keyword(s):  
Factor Analysis ◽  
Construction Projects ◽  
Project Planning ◽  
Analysis Method ◽  
Building Projects ◽  
High Rise ◽  
High Rise Building ◽  
Building Project ◽  
Construction Works ◽  
Failure Factors

A poorly coordinated performance among stakeholders in the finishing phase can impair the performance of a high-rise building project. Therefore, it is necessary to analyze construction failure factors (CFFs) to stakeholder coordinating performance (SCP) in the finishing phase of high-rise building projects and to uncover their underlying relationships. CFFs to SCP in construction projects, especially in the finishing phase of high-rise building projects, have not yet been discovered. The study identified 30 CFFs to the SCP and ranked them according to the perspective of the stakeholders, including owners/consultants and contractors/subcontractors. Additionally, four factors of the CFFs, namely, traditional adversarial relationship, poor project planning and organization, incompetent parties, and delays of parties toward construction works were extracted by the factor analysis method. This study fills the gap in knowledge related to the coordination performance in construction projects. The findings could help stakeholders to enhance their coordinating performance in high-rise building projects.

scholarly journals ANALISIS ASPEK SUMBER DAYA MANUSIA TERHADAP KINERJA PEKERJA PROYEK KONSTRUKSI

2020 ◽  
Vol 3 (3) ◽  
pp. 523
Author(s):  
Yohanes Willy ◽  
Jane Sekarsari
Keyword(s):  
Data Analysis ◽  
Human Resources ◽  
Service Providers ◽  
Work Motivation ◽  
Employee Performance ◽  
Construction Project ◽  
Test Reliability ◽  
Relative Importance ◽  
Purposive Sampling ◽  
Importance Index

Human resources is one important things to achieve a successful construction project, because the success of a service provider includes human resources. However, in its implementation, construction service providers pay less attention to it. The aspect of human resources is aspects of work competence, work motivation, work loyalty and work discipline. A purpose of this research is to find how the influence of aspects of human resources on the performance of construction project workers in order to create good employee performance so that construction activities can run optimally and efficiently. The study was conducted by distributing questionnaires using purposive sampling techniques with 30 respondents. The data analysis technique used is SPSS software version 25. Data analysis was carried out from the validity test, reliability test, classic assumption test (normality test), descriptive analysis, and Relative Importance Index (RII). The results of the analysis indicate that aspects of human resources affect the performance of construction project workers and the most influential is aspect of work discipline, then the second is aspect of loyalty, the third is aspect of competence and last is  motivational aspect. Thus construction service providers can pay attention to aspects of human resources in order to improve labor performances.ABSTRAKSumber  daya  manusia  merupakan salah satu hal  penting   untuk  mencapai suatu kesuksesan proyek konstruksi,  karena  keberhasilan  suatu penyedia jasa meliputi  sumber daya manusia juga.  Namun pada pelaksanaannya penyedia  jasa  konstruksi  kurang  memperhatikannya.  Aspek-aspek sumber daya manusia yang dimaksud mencakup  aspek  kompetensi kerja,  motivasi kerja,  loyalitas kerja  serta  disiplin  kerja.  Tujuan  dari  penelitian  ini  yaitu  untuk mendapatkan  seberapa besar   aspek  sumber  daya  manusia  memengaruhi  kinerja  pekerja  proyek  konstruksi agar dapat menciptakan  kinerja pekerja  yang  baik sehingga  kegiatan konstruksi dapat berjalan optimal dan efisien. Penelitian  dilakukan  dengan  penyebaran  kuesioner  dengan menggunakan  teknik  purposive sampling dengan total 30 orang.  Teknik analisis data yang dipakai adalah software SPSS versi 25. Analisis data dilakukan mulai dari uji validitas, uji reliabilitas, uji asumsi klasik yaitu uji normalitas, analisis deskriptif, serta Relative Importance Index (RII). Hasil dari analisis yang dilakukan menunjukkan  bahwa  aspek sumber daya manusia  mmengaruhi kinerja pekerja proyek konstruksi dan yang paling memengaruhi adalah aspek disiplin kerja, kemudian yang  kedua  adalah  aspek  loyalitas , lalu yang  ketiga  adalah  aspek  kompetensi dan yang keempat adalah adalah aspek motivasi.  Dengan  demikian  penyedia jasa  konstruksi  dapat memperhatikan aspek sumber daya manusia  agar dapat memaksimalkan kinerja perkerja.

scholarly journals PENYEBAB CHANGE ORDER PADA PROYEK KONSTRUKSI GEDUNG BERTINGKAT

2020 ◽  
Vol 3 (3) ◽  
pp. 511
Author(s):  
Adi Ananias Ardine ◽  
Hendrik Sulistio
Keyword(s):  
Construction Projects ◽  
Construction Project ◽  
Vertical Direction ◽  
Literature Study ◽  
Change Orders ◽  
Building Projects ◽  
High Rise ◽  
High Rise Building ◽  
Two Factors ◽  
Change Order

The number of high rise building construction projects in Jabodetabek area continues to grow. The main reason is increasing population of the region, so that development in the vertical direction becomes a solution. There are three important criteria in every construction project, namely cost, quality, and time. These criteria must be agreed upon and regulated in the form of a contract. Based on prior research, change orders cannot be avoided in every construction project. Change order can give complex impact and able to harm related parties. To minimize and anticipate the occurrence of change orders, it is necessary to know the factors that can cause changes in a contract. The factors that have been determined from the results of the literature study are compiled into a questionnaire to find out the main causes of change orders. The questionnaire was distributed to owners, contractors and consultants in high rise building projects in Jabodetabek area. PLS-SEM is used as a method for analyzing data in this study with the help of the smartPLS 3.0 program. From the results of the analysis carried out, obtained two factors that have a significant influence on the change order, namely construction factors and administrative factors.  ABSTRAKJumlah proyek konstruksi gedung bertingkat di wilayah Jabodetabek terus bertumbuh. Alasan utama karena kondisi wilayah yang semakin padat, sehingga pengembangan pembangunan ke arah vertikal menjadi solusi. Terdapat tiga kriteria penting yang menjadi fokus dalam setiap proyek konstruksi, yaitu biaya, mutu, dan waktu. Kriteria-kriteria tersebut harus disepakati dan diatur oleh pihak-pihak yang terlibat sesuai dengan ketentuan peraturan yang berlaku dalam bentuk kontrak. Berdasarkan penelitian terdahulu, perubahan atau change order merupakan hal yang umum dan tidak dapat dihindari dalam setiap proyek konstruksi. Change order memberikan dampak yang kompleks, sehingga sangat berpengaruh terhadap kinerja suatu proyek konstruksi dan dapat merugikan pihak-pihak yang terlibat di dalamnya. Untuk meminimalisir serta mengantisipasi terjadinya change order, maka perlu untuk mengetahui faktor-faktor yang dapat menyebabkan perubahan dalam suatu kontrak pada proyek konstruksi gedung bertingkat. Faktor-faktor yang sudah ditentukan dari hasil studi literatur disusun menjadi sebuah kuesioner untuk mengetahui penyebab utama dari change order. Penyebaran kuesioner tersebut dilakukan terhadap owner, kontraktor, dan konsultan pada proyek gedung bertingkat di wilayah Jabodetabek. PLS-SEM digunakan sebagai metode untuk menganalisis data pada penelitian ini dengan bantuan program smartPLS 3.0. Dari hasil analisis yang dilakukan, didapat dua faktor yang memiliki nilai pengaruh signifikan terhadap change order, yaitu faktor konstruksi dan faktor administrasi.

Visibility and Dominance Analysis: Assessing a High-Rise Building Project in Trondheim

2009 ◽  
Vol 36 (4) ◽  
pp. 698-710 ◽  
Author(s):  
Jan Ketil Rød ◽  
Diana van der Meer
Keyword(s):  
Urban Landscape ◽  
Central Area ◽  
Observation Point ◽  
Visibility Analysis ◽  
Entire Study ◽  
Dominance Analysis ◽  
High Rise ◽  
High Rise Building ◽  
Visual Impact ◽  
Building Project

This article presents a GIS-aided visibility and dominance analysis used for a visual-impact assessment of a planned high-rise building located in a central area in Trondheim, Norway. The visibility analysis calculates fields of intervisibility between the high-rise building and locations in the urban landscape. Visual obstacles such as existing buildings and trees are included. The dominance analysis adds to the visibility analysis a measure of how visually dominant the high-rise building would be. The dominance measure is based on the distance to the building and how much of the building would be visible from any observation point. The result is an assessment of visibility and dominance throughout the entire study area as opposed to using photomontages for assessing visibility and dominance from single standpoints.

scholarly journals A review of causes of variation order in the construction of terrace housing projects in Malaysia

2019 ◽  
Vol 277 ◽  
pp. 03013
Author(s):  
Noraziah Mohammad ◽  
Zabidi Hamzah
Keyword(s):  
Construction Industry ◽  
Construction Projects ◽  
Construction Project ◽  
Extensive Literature ◽  
Time Cost ◽  
Construction Time ◽  
Building Projects ◽  
Housing Projects ◽  
Building Project

Variation order refers to any changes from the scope, plan, specification or contract document in the construction project. This changes of work is a common problem in construction projects in Malaysia. It is inevitable in any construction project and this problem can become more serious when variation order causes work progress to be impaired as a results it increased the construction time and cost that affects the construction industry in Malaysia. This paper critically review the causes of variation order in the construction industry on the double-storey terrace housing project in Malaysia. The discussions began with the construction industry in Malaysia and then related parties involved in the construction industry. The extensive local and abroad literature review on the definitions of variation order and analysis of past studies conducted on variation order and the previous study of the prediction model of variation. The extensive literature on variation order in the construction of building project may help to improve the performance in term of time, cost and quality of the construction of building projects in Malaysia.

Study on Mass Concrete Construction Technology of Raft Foundation in Yantai Ocean Development Center

2014 ◽  
Vol 919-921 ◽  
pp. 1421-1425 ◽  
Author(s):  
Jian Zhu ◽  
Yan Bin Zhang ◽  
Xu Feng Du ◽  
Yong Jiang
Keyword(s):  
Temperature Rise ◽  
Mass Concrete ◽  
Construction Technology ◽  
High Rise ◽  
High Rise Building ◽  
Initial Stage ◽  
Building Project ◽  
Development Center ◽  
Technical Measures

Mass concrete is widely being used in the construction field, especially for the foundation of super high-rise building. In the initial stage of pouring completion of mass concrete, lots of heat generated from the cement hydration will lead to a high temperature inside of concrete. When the temperature difference between the inner and outer of concrete exceeds the limited value, thermal stress will be greater than the tensile strength of concrete, which may cause hazardous penetrating cracks of the structure. To ensure the safety and durability of concrete structure, necessary measures should be taken to control the temperature rise and construction quality of concrete. Taking a super high-rise building project as an example, this paper introduces several effective solutions to resolve above problems. The technical measures such as enhancing the concrete quality, controlling temperature rise, strengthening temperature monitoring would be detailed illustrated. Meanwhile, valuable suggestions achieved from this practical project are proposed in order to guide the structural design and on-site construction of similar projects.

Prominent demotivational factors influencing the productivity of construction project managers in Qatar

2014 ◽  
Vol 63 (8) ◽  
pp. 1070-1090 ◽  
Author(s):  
Abdulaziz M. Jarkas ◽  
Milan Radosavljevic ◽  
Liu Wuyi
Keyword(s):  
Construction Project ◽  
Project Managers ◽  
The State ◽  
Relative Importance ◽  
Productivity Level ◽  
Content Type ◽  
Factors Affecting ◽  
Factors Influencing ◽  
Technical Specifications ◽  
The Impact

Purpose – An extensive search of the literature revealed a dearth of research on the demotivational factors affecting the performance and productivity level of site-based construction project managers. Following the announcement of awarding the FIFA 2022 World Cup hosting rights to the State of Qatar, the State is pledging to spend tens of Billions of Dollars on hundreds of new construction projects. Therefore, the purpose of this paper is to identify, explore, and rank the relative importance of the demotivational factors influencing the productivity of the State's construction management force. Design/methodology/approach – A structured questionnaire survey comprising 38 potential demotivational factors, which were shortlisted based on relevant previous studies on the impact of motivation on construction productivity, and numerous interviews with local industry professionals, was distributed to a relatively large sample of site-resident project managers. Using the “Relative Importance Index” technique, the influence ranks of the factors explored were determined. Findings – The results obtained reveal the following as the prominent demotivational factors influencing the productivity of construction project managers: lack of financial incentive schemes; slow decision-making process by owners; remuneration scale; delay in responding to Requests For Information (RFI); shortage of skilled labour force; shortage of materials; clarity and completeness of technical specifications; frequent changing orders during execution; drawings quality level; and rework. Research limitations/implications – It is clear, based on the outcomes, that the cultural background of individuals, and the prevalent practices within the environment in which they operate, are two critical factors in determining their motivation drivers. Hence, it is prudent to explore the dominant culture and values of the management workforce, in addition to the characteristics of the working environment, before trying to apply relevant motivational theories, or even implement new management strategies. Practical implications – The results demonstrate that, within the geographical setting and cultural aspects of the sample surveyed, “tributes” and “pecuniary” may be interpreted to have the largest effect on the productivity of construction project managers. Originality/value – The findings not only contribute to the overall body of knowledge related to the effect of the motivation phenomenon on the productivity of the construction operation, but can also be used to provide industry practitioners with guidance for focusing, acting upon, and controlling the significant demotivational factors affecting the efficiency of the construction project management force practicing in State.

scholarly journals Occupational Health and Safety Performance in High-Rise Building Projects in Pakistan: A Systematic Literature Review

2021 ◽  
Vol 4 (1) ◽  
pp. 99
Author(s):  
Muhammad Tarique Lakhiar ◽  
◽  
Muhammad Tahir Lakhiar ◽  
Abd Halid Abdullah ◽  
◽  
...  
Keyword(s):  
Construction Industry ◽  
Occupational Safety ◽  
Health And Safety ◽  
Building Industry ◽  
Construction Sector ◽  
Building Projects ◽  
Safety Issues ◽  
High Rise ◽  
High Rise Building ◽  
Qualitative Approaches

The building industry contributed an impressive share in Pakistan's growth sector, where the construction industry contributes almost 2.74% of the GDP of Pakistan. In most metropolitan cities, the trend of building multi-story structures is at increase. However, this construction industry is a prominent accident-prone industry where laborers generally work in an unsafe environment. These projects suffer from fatal and non-fatal accidents as labor health and security are not a prime aim in the construction industry despite all employees still dealing with safety issues. This research examines the Occupational safety and health (OSH) performance in High-rise building projects in Pakistan. This review focuses on adopting qualitative approaches, using the comprehensive literature approach for seeking current practice in health and safety and OHS laws in Pakistan's building industry. Finally, it proposes a realistic strategy for developing a safe environment at workplaces. Research indicates that Pakistan's construction sector should consider workers' safety as a priority, update and enforce safety laws at the workplace to enrich OHS conditions in the Pakistani construction sector.

scholarly journals The Measurement of Proaktive and Reaktive Performance towards Occupational Health and Safety Program

2021 ◽  
Vol 921 (1) ◽  
pp. 012081
Author(s):  
H Masiku ◽  
H Parung ◽  
R U Latief ◽  
R Arifuddin
Keyword(s):  
Health And Safety ◽  
Critical Factor ◽  
T Test ◽  
Building Construction ◽  
F Test ◽  
Building Projects ◽  
Performance Variables ◽  
High Rise ◽  
High Rise Building ◽  
Analysis Technique

Abstract The purpose of this study is to analyze the effect of proactive and reactive performance on indicators of the application of OHS in high-rise building construction. The data used in this study were obtained from a questionnaire (primary) and several observations and direct interviews with employees in 20 types of high-rise building projects in Indonesia. The analysis technique used is multiple regression analysis using hypothesis testing, namely the F test and t test. The results showed that simultaneously and partially the independent variables consisting of proactive performance (X1) and reactive performance (X2) had a significant effect on the variable construction K3 program (Y). From the ANOVA or F test, a significant number (Sig) (0.037) is obtained which is below 0.05 and the Fcount is 11.570 where the F count is greater than F table, F table is 3.84. These results indicate that the regression model is feasible to be used to predict the proactive performance and reactive performance variables together to influence the performance of the OHS culture of high-rise building construction. Seeing the performance points of construction project employees can be influenced by many other points from the results of the T Test calculation where the competence of workers obtains T results of 3.098 or the highest among others so that with this we can say that worker competence is a critical factor in improving cultural performance.

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