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The former Callignee Hall, which used to be the centre for the activities of the local community, was destroyed during the Black Saturday fires (BSF) (Latrobe 2009). The BSF have resulted in Australia's highest ever loss of life from a bushfire. This tragedy leads to the death of 173 people (Wikipedia 2010).
ECL is proud to be one of the selected construction companies to participate in this competition. We are sure that our proposal will find the reader's interest. ECL's proposal has been created using advanced Building Information Modelling (BIM) technology based on our extended knowledge and experience developing and managing various construction projects nationwide as well as in the whole Asia-Pacific region.
The construction of the new Callignee Community Centre (CCC) is prestigious in different ways. ECL has a great interest to develop this community centre for various reasons although the company is specialised in the development of large construction projects in the multi-million dollar range.
The use of BIM technology makes this proposal more precise regarding costs and time. LCC can be sure that our proposal includes all work and costs that are necessary to complete the project. Through the use of BIM, risks of unexpected events, such as additional work and therefore additional costs, have been mitigated. Consequently, ECL did not need to add many contingencies to its offer, which leads to a more competitive bid sum, a predictable construction process and the security of a successful project outcome.
BWA's design concept focuses on simple structures. The CC building will be a square with large free spaces. Entrance and exit of the CC are located in the south with connection to the new Callignee Road. Due to the landscape and for design reasons, the entrance situation is framed by concrete outdoor walls. There are two stairways connecting the two floors. Large floor-to-ceiling windows will catch natural light and connect the indoors with the surrounding environment. Especially at the north side of the building BWA's concept includes a large side-to-side window band.
Paragraph 3.4 listed already the client's physical needs regarding the CC. The complete CC includes also outdoor work and facilities such as landscaping, cricket pavilion, public restrooms, car park, BBQ area, patio, enclosed walkway, roadwork and so forth (Latrobe 2010). As mentioned earlier, ECL will only deliver the main structure and main finishes. The building services are not included in this proposal and are a separate trade.
BWA's 3D model has been opened with Vico Constructor. In order to transmit information about the model to Vico Estimator, ECL assigned the same databases to both applications. The databases contain ECL's internal information about recipes, methods and resources. In a next step, ECL assigned recipes to the individual construction elements (e.g. walls, windows, stairways) in Vico Constructor. After completing this task, all information (i.e. model quantities) has been exported to Vico Estimator. Using the Estimator, ECL adjusted and specified information about resources and unit prices in order to create the construction cost estimate.
For optimum and timely use of resources and techniques, we have used BIM for our scheduling. To achieve an effective delivery program we have co-ordinated the elements with the help of BIM, where the methods to different tasks were assigned. This was later given the best achievable program schedule in MS Project. The duration of each tasks/activities is included effectively in our program with the help of BIM. The program included the lead time for deliveries of certain materials specified in the Bill of Quantities (B.O.Q), as obtained from the BIM. Implementing this technique will eliminate the additional cost of the waiting time, helping in economical delivery of project and better cost control. Other effective actions taken by ECL in scheduling process are:
A detailed review process will be undertaken prior to commencement to ensure compliance in terms of site safety for compliance with the OHS Act and Work Cover regulations for safety. These will be implemented for ECL through its internal safety policies. The extension of this policy is not only for personnel or workers involved directly with the site but also assessment of risks potentially involving the safety of external users, community and surrounding amenities.
We, ECL group have found that with BIM as the common language, the entire team of consultants can fulfil their specific tasks coherently and consistently. Through the integrated BIM process we help architects, engineers, builders, and owners to design, analyze, document, and deliver designs from the conceptual phase through the construction phase, and beyond. Our company implemented BIM with the objective to help bring about the following improvements in this project, and ultimately to the industry as a whole:
BIM is a work in progress. The next 5 years are likely to see much broader adoption of basic BIM tools. As the use of BIM in the building industry grows, it will contribute to a higher degree of prefabrication, greater flexibility - more buildable, more predictable, and more sustainable, fewer documents and far from errors, variety in building methods, less waste and types and higher productivity. This will help make the overall construction delivery process faster, less costly, more reliable, and less prone to errors and risks and creates an exciting time to be an architect, engineer or any other AEC professional. (Chuck Eastman et al 2008)
The use of BIM technology makes this proposal more precise regarding costs and time. The future client can be sure that our proposal includes all work and costs that are necessary to complete the project. Through the use of BIM, risks of unexpected events, such as additional work and therefore additional costs, have been mitigated. Consequently, ECL did not need to add contingencies to its offer, which leads to a more competitive bid sum.