bluuebunny/crossref_metadata_2025_split huggingface dataset:
Risks of Public Procurement for Construction Works
Authors: Dita A O F , Rohman M A , Nurcahyo C B 
Published: November 2020

Abstract
Conducting a public procurement process is prone to conflict if it deviates from procurement principles. Based on Presidential Regulation number 16 of 2018, the public procurement principles are efficient, effective, transparent, open, competitive, fair, and accountable. Problems in public procurement process may occur at every stage, starting from identifying procurement needs to delivering the results of the completed work. Many problems are likely to occur if risk identification is not implemented at public procurement process. If the risk is not identified early, it will be a potentially significant budget loss of government’s construction projects. This paper is an initial research to discover the risk variables in the public procurement process. The purpose of this study is to identify risks that may arise in the process of public procurement. Research variables in this study were obtained from related literature studies. The data in this study were acquired from questionnaires and interviews with several parties related with the public procurement. Mean and Standard Deviation (SD) were employed to assess the relevant variables from questionnaires. According to the experts’ opinion, there were 13 variables in the Planning and Preparation Stages and 9 variables in the Implementation Stage.
Work breakdown structure (WBS) dictionary and checklist development of stadium architectural and interior works for safety planning
Authors: Amin J T , Sagita L , Latief Y 
Published: November 2020

Abstract
Nowadays, architectural and interior works in stadium construction have become the most critical elements. The stadium is required not only to have excellent sports facilities but also to have a high-level architecture and interior. Therefore, the works need to be more managed and planned so that the stadium project can run better and more effectively. The project planning phase has a crucial role which is when the project plans are documented, the project deliverables and requirements are defined, and subsequently, the project schedule is created, which means the development of Work Breakdown Structure (WBS) and its associated WBS dictionary with the checklist is undoubtedly imperative. The development is defining and breaking down the work into smaller components, which finally become such a project implementation reference in order to minimize the errors and ensure the project’s implementation can be in accordance with the plan. The results of this study describe the details of the development of WBS dictionary and checklist of architectural and interior work in stadium construction for safety planning that includes six (6) levels such as project name, division, sub of work, work package, activity, and resource and other information related.
Development of dictionary and checklist based on Work Breakdown Structure (WBS) at seaport project construction for cost estimation planning
Authors: Ilmi A A , Supriadi L S R , Latief Y , Muslim F 
Published: November 2020

Abstract
A construction project consists of many activities. To be more easily managed, activities are divided into smaller called work packages. The elements of construction project work are relatively similar, and these can be standardized and used as a basis for a universal program for construction project. The WBS standards can be developed into a dictionary and checklist that will help the project planning process and is expected to minimize the occurrence of cost management errors on the project. The purpose of this research is to develop a dictionary and checklist standard based on Work Breakdown Structure (WBS) for planning cost estimates for seaport project construction, identifying sources that can potentially have an impact on a project’s cost overrun. This research method uses a survey method to seaport expert’s validation and interviews using questionnaires to find the WBS-based dictionary and checklist standards. This research is expected to be a standard reference dictionary and checklist based on Work Breakdown Structure (WBS) at seaport construction projects for cost estimation planning. The importance of this research to knowledge is to know the steps of construction work especially at seaport project and to know WBS dictionary and checklist as a format that can be used as a reference base and easy-to-understand guide for seaport project, which provide work methods, activities, and resources.
Critical factors that influence the success of construction projects procurement in Surabaya
Authors: Safitri F A , Rohman M A , Indryani R 
Published: November 2020

Abstract
Construction procurement for public infrastructure projects is important with regard to the national development to fulfil infrastructure needs. As public construction works uses the public budget, its procurement process should be conducted appropriately. Proper procurement process will result the best contractors and consultants. This paper aims to analyze the factors that influence the procurement success of the public construction project in Surabaya. The right procurement process will produce good service providers. There has been a lot of research related to procurement, but only a few have focused on the determinants of construction procurement. Therefore, research is needed related to the critical success factors of construction procurement by reviewing presidential regulation number 16 of 2018. This study attempts to identify factors determining the success of construction procurement based on a literature review and applicable presidential regulations. The preliminary survey was carried out by involving several experts who assessed the variables obtained from the results of related literature studies.
A method to develop performance indicators based on performance criteria of Indonesian National Occupational Competency Standards (SKKNI) for construction safety technician competency
Authors: Okviana A , Latief Y 
Published: November 2020

Abstract
In the Indonesian National Occupational Competency Standards (SKKNI), performance indicators are not described in detail, where performance indicators are important measures for assessing performance achievements. Due to this gap, the researchers intend to propose a method to develop performance indicators based on performance criteria of the Indonesian National Occupational Competency Standards (SKKNI) for the Construction Safety Technician positions. The competency unit to be developed for its performance indicators was the Competency Unit “Hazard Identification and Risk Control”. The researchers propose a method to develop the performance indicators based on the performance criteria of Indonesian National Occupational Competency Standards (SKKNI) for Construction Safety Technician competency. The method was based on competency levels in Bloom’s taxonomy theory which was combined with a functional analysis theory. This method resulted in performance indicators for each performance criterion in three competency domains. By testing the performance indicators Construction Safety Professional and Human Resource Management Professional and also conforming to expert judgments, the results of compiled performance indicators are able to assess any performance achievements of each performance criterion.
4D BIM implementation to improve EPC project performance from contractor’s perspective. A case study
Authors: Piselia M 
Published: November 2020

Abstract
The most significant benefits of 4D BIM are better visualization of construction work, better communication between project teams and improving project time and cost performance. 4D BIM allows stakeholders to visualize construction activities during project duration and identify potential spatial conflicts and schedule conflicts. Although researches related to 4D BIM has proven the benefits of 4D modeling in construction projects, these benefits are still questionable for EPC projects, whether it can compensate the initial costs and efforts to create the model. The implementation strategies across EPC project lifecycle also become fundamental issue. Through literature studies and structured interviews, this research identifies resource requirements, implementation strategies and the benefits of 4D BIM in improving EPC project performance.
Implementation strategy of total quality management and quality culture to increase the competitiveness of contractor companies in Indonesia
Authors: Pinandhita G , Latief Y 
Published: November 2020

Abstract
When compared to the manufacture industry, the construction industry is being a concern because of their poor quality produced. For this reason, many contractor companies adopted and implemented management strategies to improve their product quality. One of management strategy approaches used is Total Quality Management (TQM). Implementation of TQM requires a fundamental change by changing the culture, processes, strategies, and beliefs in a company. This quality orientation is the key to fulfill customer satisfaction and business practices. Quality Culture is a part of organizational culture related to habits, beliefs, values, morals, and behavior to improve quality of the product. In Indonesia, contractor companies are generally weak in many ways. This will cause contractor company in Indonesia have great difficulties to be competitive with foreign contractors. This increasing global competition makes contractor companies in Indonesia have to adopt TQM and Quality Culture as one of the strategies to always make improvements continuously so as to provide competitive advantage and increase company performance. For Indonesian contractor companies to compete with foreign contractors, the alternative strategy is needed. Framework of the alternative strategy is the result of the implementation of TQM and Quality Culture, because they can be seen as a strategy that improves economic conditions and helps companies achieve competitive advantage.
Research on real estate investment trust (REIT) as real estate financing for developers: a methodology review of previous study
Authors: Sari A F , Utomo C , Rahmawati Y 
Published: November 2020

Abstract
Project financing commonly found in Indonesia is conventional project financing, namely financing with own capital and long-term loans with a certain composition. The use of conventional financing often produces an un-optimal and unprofitable cost of capital. Real Estate Investment Trust (REIT) is one of alternative financing that can be applied in global property projects, but the use of this strategy is needed to be further analyzed to be used as a project financing option in Surabaya. The developer companies tend to agree with the development of REIT in Surabaya and also the benefits obtained from the implementation of REIT. However, they are still having doubts about implementing it. The purpose of this study is to examine using REIT as a method of real estate financing for developers. This research is focused on finding the consequences of using REIT from the developer side. Therefore, the literature review method will be carried out.
The effect of parsial granulated blast furnace slag (GBFS) substitution and ashes of the boiler crust of the palm oil shells on paving block
Authors: Yuhanah T , Hidayawanti R , Mayasari D , Wicaksono B 
Published: November 2020

Abstract
Paving block is a building material made of cement, water, and fine aggregate used as an alternative cover or hardening for land surface. It is commonly used for various purposes such as, sidewalks, parking lots, and road pavement. The increasing demand of cement-forming materials is due to the rise in the number of cement users, therefore, an environmentally friendly material is needed to be produced from industrial waste. Generally, Indonesia has extensive oil palm plantations, as a result, excess wastes are produced from the burning of oil palm shells namely, boiler scale ash (contains silica oxides (SiO2), pozzolan, and other compounds present in cement). Smelting and metal refining industries produce wastes from Granulated Blast Furnace Slag (GBFS), which contains silica oxide as their major chemical composition. Therefore, this study aims to determine the compressive strength and the water absorbing capacity of paving blocks using 10% of Palm Boiler Crust Ash as a substitute for fine aggregate/sand, and the percentage variations of Granulated Blast Furnace Slag (GBFS) waste as a cement replacement material. The results showed that the paving block variation V2 had the highest compressive strength (22.83 MPa), while the highest water absorption (5.45%) was found in variation V1, which was higher than the normal paving block (2.39%).
Updating the slope-movement data on the Batu-Kediri road network using digital information
Authors: Wahyudianto E 
Published: November 2020

Abstract
Updating the landslide data or slope movement on the road is needed for the safety of traffic movements. Landslide events on the road must be compiled to measure their characteristics, including the causes thereof. In identifying and assessing landslide events, detailed data related to trigger parameters, time of occurrence, impact, or material loss are absolutely necessary. The utilization of digital media ultimately provides very useful disaster data. However, these data sources have different levels of information depth. To obtain sufficient data to analyze landslides, the data must be sorted according to the depth classification of information. The classification is based on landslide coordinates, impacts on traffic movement, time of occurrence, fatalities, triggers, information providers, and types of landslide material. By utilizing the digital media, updating the record of landslides between 2008-2020 resulted in landslide density values as follows: Batu Municipal 9.93 (n/km), Pujon 3.44 (n/km), Kasembon 1.46 (n/km) and Ngantang (0.91 n/km).
Preliminary 3D numerical pushover analysis of laterally loaded pile groups
Authors: Yuwono A , Prakoso W A , Lase Y 
Published: November 2020

Abstract
This paper reports the results of 3D numerical pushover analyses of laterally loaded pile groups. The effects of pile structural models, soil strengths, and foundations systems are evaluated. Single piles, single pile groups, and multi pile groups are considered in the analyses. The main objective of this paper is to examine important parameters to be considered further. The findings include the overestimation of pile-soil interactions (lower efficiency factors), as well as the highly complex pile internal forces warranting a further examination in the context of high seismic demands in Indonesia.
The comparison of empirical and finite element methods to evaluate soil foundation capacities for coastal dike
Authors: Suyuti  , Misbah Zulkarnain K. , Ardhana Zhafirah M. 
Published: November 2020

Abstract
There are over 6,300km of coastlines in the North Maluku province of Indonesia due to tidal waves which originate from the pacific ocean. The waves deposit finely loosed materials and light soil formations on coastlines, therefore causing abrasion. A common example occurred in Toseho, Tidore, and Archipelago districts. Moreover, the local residence has been faced with this challenge for up to thirty years. For this reason, deliberations to construct a dike became significant, although, the soil properties are vulnerable. This reasearch, therefore, compares the empirical calculation to the finite element method (FEM) to ascertain soil foundation capacities. The results showed the safety factor, Fs, for dike height, Hd, of 3.5 m and width bottom, B1, of 12.5m appeared below 2.0 for soil friction φs of 10∼ 15°, while estimates above 2.0 depicts soil friction φs of 20°. Furthermore, the soil stresses beneath the dike were determined empirically at qmax of 5.97 t/m2 and σs of 4.57 t/m2, while FEM evaluated the deformation elastic at 12.5 cm.
Circular lining behaviour due to earthquake load in MRT Jakarta underground tunnel area CP-106
Authors: Muhammad F , Prakoso W A 
Published: November 2020

Abstract
One solution to traffic congestion in Jakarta is to build a mass transportation system in the form of Mass Rapid Transit (MRT), especially the application of underground tunnel structures. This study examines the modeling of tunnel behavior on the effect of earthquake loads. This study calculates circular tunnel behavior in static and dynamic conditions due to earthquake effects. Static condition analysis using Muir Wood’s theory and dynamic conditions using the theories of Wang (1993) and Panzien (2000) as well as supported by empiric and numeric calculations. The depth of the MRT tunnel in the CP-106 area is at a depth of 11 meters by diverting by clay with NSPT 3-20. The results show that in static condition has tunnel deformation that works at 8.06 mm in empiric and 15.12 mm in numeric. In the dynamic analysis with earthquake acceleration in 300 cm/s2 produces oval deformation at 15.95 mm in empiric and 15.20 mm in numeric. The maximum deformation limit given is 20 mm with a maximum earthquake acceleration value of 400 cm/s2. In conclusion, MRT Jakarta area CP-106 in static condition has a lower deformation than dynamic conditions, but both conditions fulfill the deformation tunnel requirements.
The effect of skirt footings for road settlement on peat soil
Authors: Gautama D A W , Supanji B S , Rahayu W 
Published: November 2020

Abstract
The construction of peat soils is a big challenge in the construction world coupled with the very special nature of peat soil. Road construction on peat soil is a major obstacle because the deformation that occurs on the road is so large. Skirt footings are one of the shallow foundations commonly used for building offshore oil refineries. With the principle of making soil that has a low bearing capacity into a single unit to be able to withstand the burden on it. Skirt footings are placed under the embankment with a parallel position stretching to the width of the road plan. Among the skirt, footings are connected with steel straps so that during the loading process the skirt footings decrease can be controlled. The purpose of this research is to make skirt footings a shallow foundation under a road built on peat soil. Tests were also carried out on two models of shallow foundation to determine the effect produced by skirt footings on the soil. The other two types of shallow foundation models are un-skirted footings and mini piles. Comparison of the results of tests between skirt footings with un-skirted footings, it can be concluded that skirts under circular footings act as a buffer against the effective stress of the soil. While from the comparison of test results between skirt footings with mini piles, it can be concluded that circular footings play a role in reducing the effect of the differential settlement on the soil. The results of this study are that skirt footing can withstand differential settlement patterns and able to increase road stability.
Structural behavior of open truss FRP bridge without side support
Authors: Sidik I , Irawan R 
Published: November 2020

Abstract
Lightweight makes the advantage of Fiber Reinforced Polymer (FRP) as one of the choices of truss bridge without side support materials. The simple shape of the structure and bridge connection system is believed to be the reason the bridge with this type of structure can use in emergencies that require rapid mobilization and installation. However, with the limited choice of FRP structural element profiles available, combined profile preparation was carried out in the structure to be used as a truss bridge structure profile. This paper describes the structural response identification of the use of a combined profile as seen from static and dynamic load testing of a full-scale bridge structure with a 16-meter span that planned to use as a pedestrian and light vehicle bridge. The load is applied in stages to be able to observe changes in the response of the structure and connection system. The results show that the bridge without side support has a load-bearing capacity that is strongly influenced by the stability of the compressive members and connection systems, which is very visible in the dynamic characteristics of the bridge in the lateral direction which is quite far when compared with the tests in other references.
Influence of link spacing on concrete shear capacity: experimental investigations and finite element studies
Authors: Don W , Chong K , Aitken M , Tambusay A , Suryanto B , Suprobo P 
Published: November 2020

Abstract
This paper investigates the influence of varying the spacing of shear reinforcement on the response of six geometrically identical reinforced concrete beams. Each beam was designed with differing longitudinal and transverse reinforcement configurations to provide improved understanding of the importance of providing sufficient shear reinforcement following guidance provided in Eurocode 2. Three different cases of varying transverse reinforcements were tested: one without the presence of shear reinforcement, one with shear reinforcement non-compliant to the design provisions and one where the design of the beams fully complies with the design guidance. In order to verify the experimental results, an open source digital image correlation software was utilised to allow for a computational crack mapping, along with the use of nonlinear finite element analysis software to enable a more thorough investigation of the individual beam response. The results obtained highlighted that shear links non-compliant to Eurocode 2 consequently led to unpredictable modes of failure, whereas beams containing shear links at the required amount and spacings displayed significant improvements in the mode of failure and ductility. Beams with the omittance of shear links resulted in the lowest load capacity, due to the sudden, brittle shear failure.
Nonlinear finite element analysis of reinforced concrete beam-column joints under reversed cyclic loading
Authors: Tambusay A , Suryanto B , Suprobo P 
Published: November 2020

Abstract
This paper presents the application of three-dimensional nonlinear finite element analysis in studying the complex behaviour of reinforced concrete beam-column joints under reversed cyclic loading. Three different joint types were considered: an interior, an exterior, and a corner joint, each representing typical joint configurations in general moment resisting frame structures. These joints’ test data were taken from the experimental investigations carried out by Shiohara and Kusuhara about 15 years ago and used here to showcase the practical application and value of an advanced numerical modelling. It is shown that the numerical models are able to accurately capture the full cyclic hysteretic response, progressive strength and stiffness degradation, cracking and damage evolution under load cycles, and failure mode. It is also shown that the numerical models provide a useful tool to characterise failure processes and behavioural mechanisms.