An Overview of High-Rise Buildings in Jakarta since 1967 to 2020

High-rise buildings in big cities are crucial for business, economic, educational, residential, and entertainment activities in recent times. The technology discoveries in various fields that support high-rise building construction such as structure, mechanical, electrical, and materials have opened up opportunities for comfortable and environmentally safe architectural work. The first milestone of high-rise building construction knowledge in Indonesia was the completion of the thirteen-floors Sarinah retail building in 1967. Indonesia, especially in Jakarta, then experienced rapid growth of high-rise buildings construction. However, there is limited research on the development of high-rise building designs in Indonesia, especially from an architectural design perspective. It leads to the lack of literature on high-rise building design in Indonesia. By utilizing a publicly accessible database from the Council of Tall Buildings and Urban Habitat and recent literature called Designing Tall Building by Mark Sarkisian, this paper explores the design development of high-rise buildings in Jakarta from time to time in the aspects of architecture, structure and sustainability.

CASE STUDY: CONSTRUCTABILITY REVIEW PROCESS OF A LARGE PUBLIC TRANSPORTATION AGENCY

Constructability is the optimum use of construction knowledge and experience to plan, design, procure, and manage field operations to achieve project objectives. Although there are many benefits to conducting constructability reviews (CRs) such as reduced cost and schedules, and fewer claims and change orders, current CRs still lack effectiveness in meeting industry demands for delivering construction contract documents promoting buildable projects. In the highway sector, transportation agencies have applied CRs at various levels, starting from the involvement of their own project team to soliciting external input from contractors before the project is even bid out. The objective of this paper is to investigate effective practices used by an agency in soliciting constructability input from contractors, given administrative and legal constraints. This was achieved through a comprehensive literature review of existing CR practices, followed by a case study of a transportation agency that has been implementing CRs involving contractor’s input, as well as content analysis of documents, forms, and tools used during their CR process. The interviews entailed personnel working in various departments, such as preconstruction, program management, construction, and environmental. It also included consultants and contractors working for the agency. The major conclusions drawn are that the Florida Department of Transportation (FDOT) lives up to its reputation of a de-centralized agency in the area of Constructability; FDOT does not routinely customize its CR Process to the details of each project; and FDOT is not one of the more progressive DOTs in the US in the area of Constructability.

Development of a Grey Box Thermal Dynamic Model without Building Construction Knowledge

Model Predictive Controllers (MPC) in building Heating Ventilation and Air Conditioning (HVAC) systems have demonstrated significant energy savings when compared to typical on/off controllers. MPCs require information about the building’s thermal dynamics which is challenging to model, especially for older structures without buildings specifications. This research investigates the ability to develop a grey box thermal dynamic model that can determine the net thermal dynamics, without any building construction information. Sensors were installed within a test cell to monitor the building automation system (BAS) points, and collect building element surface temperature data. The simulation program Simulink was used to develop and test iterations of grey box models. The final model, that relies solely on BAS points, is able to predict the ambient temperature for a 3-hour Prediction Window to within 1.7% accuracy. This model demonstrates the potential for more buildings to implement HVAC MPC systems with grey box thermal dynamic modeling

Development of a Grey Box Thermal Dynamic Model without Building Construction Knowledge

Model Predictive Controllers (MPC) in building Heating Ventilation and Air Conditioning (HVAC) systems have demonstrated significant energy savings when compared to typical on/off controllers. MPCs require information about the building’s thermal dynamics which is challenging to model, especially for older structures without buildings specifications. This research investigates the ability to develop a grey box thermal dynamic model that can determine the net thermal dynamics, without any building construction information. Sensors were installed within a test cell to monitor the building automation system (BAS) points, and collect building element surface temperature data. The simulation program Simulink was used to develop and test iterations of grey box models. The final model, that relies solely on BAS points, is able to predict the ambient temperature for a 3-hour Prediction Window to within 1.7% accuracy. This model demonstrates the potential for more buildings to implement HVAC MPC systems with grey box thermal dynamic modeling

Adoption of seismic-resistant techniques in reconstructed housing in the aftermath of Nepal’s 2015 Gorkha earthquake

Earthquake affected households too often insufficiently apply seismic construction knowledge during reconstruction. This study aims to assess to what degree safety guidelines have found their way to practice in Nepal. Differences are explored between communities in the Gorkha and Okhaldhunga districts, which received differing levels of technical assistance following the 2015 earthquakes. Seismic resistance of houses was assessed 3 years after the earthquakes. Findings from 955 houses in 25 communities show high degrees of adoption of earthquake-resistant construction knowledge in all selected communities. Variation in safer construction across communities differs only slightly for different intensities of humanitarian technical assistance. This finding points toward the need to more closely examine the communication methods employed and motivations of households to build back safer.

Zwischen Schule und Studium – Wissenskommunikation in studentischen Kleingruppen angehender Lehrer*innen

Bridging the gap between theory and practice is an important topic in German teacher education: How can trainee teachers be prepared for the requirements of their future job? One concept that has been discussed in depth is research-based learning: it promises to foster critical thinking and reflexion skills. In our paper, we discuss data from three settings of research-based learning in which students work in small groups of 2–4 persons on empirical data and/or discuss scientific publications. Using a conversation analytic approach, we ask how exactly students bridge the aforementioned gap – how they use biographical and/or professional knowledge from the epistemic domain school, and in what way these referrals are functional for the ongoing interaction in the small groups. We describe three practices and discuss them in terms of identity construction, knowledge communication and ‘doing togetherness’.

Partnership of Learning Construction Through Model Making

Project-based learning offers an engaging instructional method to make learners active constructors of knowledge. This study aims to investigate the effectiveness of learning in two project-based learning of construction through model making in architecture using a case study and by designing. Model making is an innovative and time-consuming approach in teaching construction as this approach rely heavily on student-teacher partnership mimicking the studio learning. Learning construction through model making needs students to take an active role and to be ‘in-charge' of their learning and learning process. The study employs a survey to 78 participants of undergraduate architecture students. The results of this study demonstrated architecture students learn construction effectively using the model making method. This project-based learning allows students to have construction knowledge to consider buildability in their architecture design studio. The result can be used to improve teaching and learning of construction in architectural education.

Critical Risks to Construction Cost Estimation

The prevalence of cost overrun in project delivery suggests an acute dearth of inclusive understanding of the effect of risks on construction cost estimation. In aberrant to the generic assumptions, customary to inquiries in construction risk researches, this paper appraised critical construction estimating risks. The study evaluated the sources, frequency and significance of construction estimating risks, using data from a questionnaire survey of 206 quantity surveyors in Nigeria. The data were analysed using factor analysis, Fussy Set Theory, Terrell Transformation Index (TTI), and Kruskal Wallis H tests. The results showed that estimating risks are correlate seven principal sources, namely: estimating resources, construction knowledge, design information, economic condition, the expertise of estimator, geographic factor, cost data, and project factors (λ, > 0.70 <1.0). Twenty-nine risk factors likewise emerged critical construction estimation risks (TTI, 69-87 > 65 percent) and the top three were low construction knowledge, inaccurate cost information and changes in government regulations (factor scores > 0.60 > 0.50). The awareness and accurate assessment of these risks into project cost estimation would reduce cost overrun. The study, therefore, recommends synergies between projects’ internal/ external environments for proper scoping of these risks into project estimates.