BPM101 Newton Gems Case Study Assignment Questions | SUSS

Published: 02 Apr, 2025
Category Case Study Subject Management
University Singapore University of Social Science Module Title BPM101 Newton Gems Case Study

Group Case Study (GSC01)

This assignment is worth 14% of the final mark for BPM101 Interdisciplinary Studies in Construction.
The cut-off date for this assignment is 24 March 2025, 2355 hrs.

Note to Students:

This is a group-based assignment. You should form a group of a maximum of 3 members from your class to research and answer the questions in the assignment.

Your assignment shall be submitted in the form of a write-up of not more than 3000 words. You may include pictures or illustrations to bring your points across. The group leader shall submit the assignment in MS Word format to “Canvas” on behalf of the group. Each group shall submit ONE (1) report only.

You are to include the following particulars in your submission: Course Code, Title of the TMA, every student’s name and PI No. on the cover page of your assignment.

Presentation:

Prepare no more than 12 slides summarizing the group’s write-up for a class presentation on 25 March 2025. All group members must participate in the presentation, which should not exceed 10 minutes.

Students who are absent during the presentation may fail the assignment if no valid reason is provided.

Topic: Case Study To Newton.Gems Condominium

Singapore's construction industry was hit significantly by COVID-19. The main challenges during the post-Covid era faced by the industry are the increase in labour and material costs and the need to reduce dependence on foreign workers. One of the possible solutions is to adopt the concept of design and assembly with advanced precast technologies, which can improve the efficiency and quality of construction projects.
Project Background (info from BCA)

Background

Newton. Gems is a 30-storey residential development with a basement at Newton Road/Lincoln Road. This project comprises two identical towers with a total of 190 units.

BPM101 Newton Gems Case Study Jan 2025
Site Location

Project Team

Owner: Great Eastern Life Assurance Pte Ltd Main Contractor (D&B): Shimizu Corporation
Architect: Architects 61 Pte Ltd
Structural Engineer: Meinhardt (Singapore) Pte Ltd M&E Engineer: Squire Mech (Pte) Ltd Precast Supplier: Fermold Pte Ltd

Project Data

Contract Sum: $61.8 million Contract Period: 26 months Site Area: 9754.10 m2
Total GFA: 28,818.97 m2
Building Height: 120 m

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Challenges Faced

The site was bounded by private residential buildings and next to the Royal Hotel. The proposed building is rectilinear with a length-to-width ratio of about 4 and has an aspect ratio (that is, height/width ratio) of 8.15. The narrowest and widest sections of the building itself measured about 6m and 14m, respectively, at the typical floor. Apart from the intricate design of such a slender building, the site constraints posed many challenges to the project team.
They were: –

BPM101 Newton Gems Case Study Assignment

Slender elevation of the building

Limited site access

The site had highly restricted access, with only a narrow 6m to 8m wide clear path available on two sides of the building. Coupled with ongoing basement construction activities, the availability of access was at times limited to just one side for the delivery of precast panels and the movement of other heavy vehicles, such as ready-mix trucks.

BPM101 Newton Gems Case Study Assignment

Limited site access for panel delivery

Potential environmental disturbance to local communities

Being “sandwiched” between nearby residential units and a hotel, there was an environmental impact consideration, such as noise and dust. A conventional metal formwork system would generate a relatively high noise level during installation, casting of in-situ concrete and formwork removal. This could lead to restrictions on working hours, potentially impacting the project’s progress.

Design Concept and Considerations

To address the site constraints and design complexities, the team worked together to achieve an optimal combination of precast concrete components with cast in-situ elements. Maximum prefabrication off-site was intended to minimize the need for extensive working space onsite. The adoption of a precast façade and appropriate joint details enabled the installation of precast panels to be done from the interior of the building, eliminating the need to have external scaffolding.

With fewer wet trades and debris generated due to prefabrication, critical access routes remained clear. Additionally, the noise generated during the installation of precast panels was generally within acceptable limits, helping to minimize disturbances to neighbouring residents and hotel occupants.

BPM101 Newton Gems Case Study Assignment
External scaffolding is not required for full precast façades

BPM101 Newton Gems Case Study Assignment

 Floor layout showing the different precast concrete components used 

Vertical Precast Concrete Components

Cast in-situ columns and shear walls were designed and located on the interior of the building for structural stability. Such stability was further enhanced using coupled shear walls via coupling beams to transfer shear. Precast load-bearing elements, including columns, shear walls, and staircase cores, were adopted to form the building envelope supporting structures. Other vertical components, such as precast lift core walls, household shelters, and precast refuse chutes, were used.

BPM101 Newton Gems Case Study Assignment

Bay window integrated with load-bearing vertical elements

BPM101 Newton Gems Case Study

  Isometric view of precast building components used

Horizontal Precast Concrete Components

The transfer of horizontal floor loads was transferred using floor beams. These beams served to stiffen the horizontal plate for lateral resistance of the building. Almost all the horizontal elements were precast: precast beams (including bay window spandrel and coupling beams), precast full slabs and half slabs frames into the columns and walls system. Other horizontal components include precast balconies, air-con ledges, parapets, sunshades, staircase landings and flights

BPM101 Newton Gems Case Study Assignment

Precast beams profiled with drop level

BPM101 Newton Gems Case Study Assignment

Non-load-bearing window wall integrated with beam to form an enclosed window panel

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Variety of Exterior Face Shapes, Profiles and Groove Line Details

Exterior vertical load-bearing elements were profiled with recesses to cater for aluminium curtain walls and the windows interface. Likewise, exterior horizontal elements, including bay window spandrels, were also profiled for weather protection around the window joints. By using the precast system, it would be easier to produce profiled panels to finished dimensions by designing moulds that allow for projecting ledges to be cast with mould face-down. Vertically cast methods as necessitated using in-situ construction would be cumbersome, and frequently, honeycombing occurs around deeply profiled edges and recesses unless formworks are intricately designed.

High-Level Roof Trellis with Intertwined Features

The roof level trellises, or crown structure, measured approximately 15m from the roof level. With a narrow floor slab footprint of about 6m, it would have been a daunting task to put up formwork support and bracing system for constructing high level in-situ columns and trellises without external scaffolding system. The team adopted the use of precast concrete components to overcome this challenge. The whole roof structure was fully prefabricated and erected in a carefully planned sequence.

Construction Considerations

The two towers were almost identical, with minor variations at some corners of a few floors. Precast panels were designed to stay within the tower crane’s transportable limits and lifting capacity of 12 tons within a 20-meter radius. A total of four tower cranes were used with heaviest components weighing 11.5 tons.
Crane time availability was critical as precast components were used for almost the entire building, except for some shear walls and internal columns. At the peak of construction, the cycle time was about 6–8 days per floor. In addition to installing precast panels, cranes were heavily used for casting in-situ walls and columns. Therefore, careful coordination was required to manage these activities in the same zone. For instance, while panel installation was underway in one construction zone, in-situ work that did not require crane usage could be scheduled in other areas, ensuring seamless progress across trades.

Two cranes for each block

In this project, most of the floor slab elements were precast full slabs so that there would be minimal in-situ concreting works. This method allowed for multiple small work units to be carried out simultaneously within the same floor, as the floor plate was immediately usable as a working platform upon installation. The panel jointing work can be divided into several discrete locations.

The mould for the casting of precast full slab. Rebars installed before casting

The installation of precast components adhered to the conventional workflow: vertical elements were installed and propped, followed by horizontal elements installation. Except for some non-structural elements, most components are connected through wet joints to ensure water tightness. Precast works precede in-situ works to allow interfacing sections to be cast together with the in-situ concrete.
For M&E services, conduits and cast-in items such as socket outlets were incorporated into the panels. Service connections were provided for in the false ceiling space. This approach eliminated the need for cast-in conduits within the precast full slabs, avoiding potential damage to the conduits caused by drilling during the anchoring of props for vertical panel installation.
Overall, the project team successfully integrated the use of prefabrication with cast in situ construction. Good design coordination, construction method and site management from the conceptual stage had enabled them to realise the full benefits of precast works.

Try to write up a group study with no more than 3000 words, focusing on the below:

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Task 1

Describe the Industry Transformation Map (ITM) for the built environment in Singapore, including its main objectives and the aspects in the Design, Construction and Operations & Maintenance stages. Provide examples to demonstrate how the construction sector becomes more progressive, efficient, and professional by aligning with the ITM strategies

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