MODEL INTEGRATION (BIM) FOR MAINTENANCE BUILDING AS INFORMATION AND ACTION PLAN IN LAUNDRY LABORATORY AND KITCHEN LABORATORY OF PETRA SURABAYA CHRISTIAN UNIVERSITY

Maintenance of each building along with every component and its facilities is needed to provide smooth and comfortable activities in the building. Often the building maintenance process/activity has not been able to run properly due to a lot of information such as maintenance records, work drawings (as-built drawings), types of assets, specifications, repair, and maintenance history that have not been recorded or stored properly. Most building maintenance systems currently only focus on existing information or records. The proposed information system is to utilize 3D modeling techniques namely BIM (Building Information Modeling), which through this BIM will be able to capture relevant information according to the data in the building. The technology used is the BIM (Building Information Modeling) technology using the SketchUp program. This method is by making a model of the building and its facilities. Modeling is done by giving visual data in 3D (three dimensions) to resemble the original object. The benefit of 3D (three-dimensional) modeling is that it provides clearer information because the visualization displayed is the same as the original object at the location, so just looking at the 3D model is quite the same as seeing the original object at the location. This research resulted in an information system in the form of three-dimensional visual model images that can be accessed easily. This concludes that an integrated Building Information Modeling (BIM) based system can provide useful functions in building maintenance quickly and accurately.


INTRODUCTION
All existing buildings will always be endeavored to be used in conditions that are safe, comfortable and durable. Over time, the condition of a building will experience a phase of decreased quality, so it is necessary to carry out regular maintenance/maintenance. Building maintenance should be carried out routinely or periodically, especially in supporting facilities such as mechanical, electrical, internet, telephone, air conditioning, and other facilities. Another thing that needs to be a concern also is databases such as asset type data, building specifications, repair, and maintenance history, and all repair data needs to be updated and stored properly. With a good information system, it will be very helpful for maintenance management to perform maintenance on a building better. At this time, 3D visualization technology has become one of the things that can be used in supporting maintenance management tasks. Applications that can be used to do 3D modeling include SketchUp. The object of this research is: 1. Exploring 3D Modeling (3 Dimensions) as an information system that can provide good and directed visualization VOLUME 19 │ NUMBER 02 │ JANUARY 2020 https://ejournal.worldconference.id/index.php/neutron E-ISSN: 2685-3272 | P-ISSN 1412-0860 2. "Sketchup" can describe and show the results of integration in the form of 3D images (3 Dimensions) on objects/components in a building/building well and clearly. 3. The information provided to the maintenance management section will be easily read/understood, so that in carrying out its duties the data can be given in full, fast and directed. The benefits of this research are expected to provide benefits about the general picture that can be applied to make effective and efficient maintenance of buildings in one building using a 3-dimensional (3D) information system commonly referred to as Building Information Modeling.

LITERATURE REVIEW PREVIOUS RESEARCH
Some previous studies which in this case became one of the references of the author is researching so that the author can enrich the theory used to study the research conducted, including the following:  Facility maintenance work is carried out using a BIM model-based process, the building maintenance process will be stronger and more efficient at each sub-process stage.

THEORETICAL BASIS Management of Building Maintenance and Maintenance
VOLUME 19 │ NUMBER 02 │ JANUARY 2020 https://ejournal.worldconference.id/index.php/neutron E-ISSN: 2685-3272 | P-ISSN 1412-0860 Maintenance management of a building is often overlooked because its effects are not felt directly (Mandagi et al., 2017). Management is defined as efforts and activities to achieve a goal by using human resources and other resources effectively and efficiently. Effective means that the planned goals and objectives can be achieved as expected, whereas efficient means achieving optimal results with minimal effort.
Maintenance (Regulation of the Minister of Public Works, 2008) is defined as an activity to repair and/or replace parts of a building, components, building materials, and/or building infrastructure and facilities to maintain proper function. Maintenance (Minister of Public Works Regulation, 2008) is an effort to maintain the condition of the building so that it continues to function as it should or to improve the function of the building and guard against any damage that occurs

Maintenance Achievements Using BIM
The existence of Building Information Modeling Technology (BIM) as a Tool (Liu & Issa, 2014) is expected to be able to bridge between one work activity with other work activities so that the friction that occurs can be prevented/reduced. youtube link (Designs, 2014)

Definition of Building Information Modeling (BIM)
The basic understanding of BIM is the collaboration of many different stakeholders at different phases of the life cycle of facilities to enter, delete, update or modify information in BIM to support and reflect the roles of various stakeholders. Based on some of the definitions mentioned above, it can be concluded that BIM (Abdullah et al., 2014) is not only a technology but also includes a process using products from the right software. youtube link (TV, 2015)

Integration of Building Information Modeling (BIM) with Maintenance Management
In the current era of modern technology, BIM can be used to map the level of functionality of a building and its assets. However, to implement the use of BIM in maintenance (Arayici et al., 2012), several things must be emphasized and handled, according to the BIM Implementation 1. We need to consider how this digital information can be integrated for maintenance management. 2. Need to consider an inventory of all available equipment, this will make it easy to access information either regularly or suddenly if there is damage.
The successful implementation of BIM will depend on the software used, the number of people who will use this BIM technology, the type of information that can be shared and many others. It cannot be denied that BIM offers a higher standard of functionality for the maintenance of a building as an integrated digital system for every component in a building/building. youtube link (Tooley, 2013) VOLUME 19 │ NUMBER 02 │ JANUARY 2020 https://ejournal.worldconference.id/index.php/neutron E-ISSN: 2685-3272 | P-ISSN 1412-0860 Table 4. Flow Chart

Preparation Phase
In this stage, the works include Collection of As-Built Drawing both in hard copy and soft copy, Collection of Specifications data for all materials used, Collection of data for tools used. the next step is to conduct a site inspection and to collect data and measurements at the location to ensure that all those in the location are by the as-built drawings and available inventory data.

Processing Phase
Make sketches and drawings to be a guide in drawing 3D (3 Dimensions), After getting a picture for a picture on location then the next step is to do a 3D depiction using the software "Sketchup"

Final Settlement Stage
Integrating 3D modeling for all objects that have been drawn using SketchUp into one integrase, and processing the 3D modeling into an information system that can be used https://ejournal.worldconference.id/index.php/neutron E-ISSN: 2685-3272 | P-ISSN 1412-0860 as a reference for the building maintenance management unit / Maintenance Building in carrying out maintenance tasks.

RESULTS AND DISCUSSION Discussion
With some of the background above, the authors try to provide several alternatives in solving these problems, including by making 3D images (three dimensions) that are easily understood and understood by the executors in the field in carrying out the maintenance and care of all installations in each Existing Laboratory. Preparation Phase a. As-Built Drawing data collection, namely searching and collecting as-built drawings, both architectural, structural, mechanical, electrical and other work stored in the Campus Physical Planning Unit (UPFK).  c. Data collection of equipment used and review to each laboratory and interviews with staff in each laboratory to ensure all equipment used. d. Site reviews and measurements, as well as field measurements to obtain and ensure that all data that has been obtained is by the conditions on the ground

Processing Phase
After the data collection process is done then the next process is the Model Making Process, following several stages of 3D Modeling processing https://ejournal.worldconference.id/index.php/neutron

CONCLUSIONS Conclusions
1. 3D Modeling Results (3 Dimensions) that have been produced in general can be used as information that can provide a visualization of a building well and directed. 2. Software "Sketchup" as one of the tools used in 3D modeling (three dimensions) in general can describe and show the results of 3D integration (three dimensions) on objects/components in a building/building clearly, 3. 3D Modeling Information System that can be given to the Maintenance Management including among others in the form of images such as floor plans, looks, pieces, details, etc., which are the result of processing 3D images that have been integrated and are expected to be easily read/understood as a reference in the process of work/maintenance activities.