Speak with data, BIM technology teaches you how to improve the project cost, When it comes to saving the construction period and saving construction costs, everyone’s first impression would be about unscrupulous enterprises! In fact, there is another powerful technology that has emerged in recent years, which can also save money, that is, BIM technology. The BIM boom has been heating up in the world construction industry in recent years, and BIM technology is gradually showing this development trend.
So can BIM technology save money? Today, Invert LLC will take you to find out.
According to the research on quantitative processing of different methods by the Center for Integrated Facility Engineering (CIFE) of Stanford University, it is concluded that the use of BIM building information model has the following advantages:
1. Eliminate 40% of off-budget changes
2. The cost estimate is controlled within 3% accuracy
3. Cost estimation time is shortened by 80%
4. Reduce contract price by 10% by detecting and resolving conflicts
5. The project time limit is shortened by 7%, and the return on investment is realized early.
so-called saving money is cost control. The application value brought by BIM technology is mainly reflected in the following five aspects:
1. Improve the efficiency and accuracy of engineering quantity calculation
The automated calculation method of BIM technology can liberate engineers from complex and tedious repetitive work, and no longer waste a lot of time in manual calculations. The time and energy saved can be used for more valuable work, such as scheme optimization, On-site management, etc.
In addition, the BIM model can also be understood as a database for storing project component information, which can provide construction personnel with the project component information required for cost preparation. The advantage of this is that it can reduce the need to manually identify component information based on drawings in the two-dimensional era. The workload, and the second is to avoid potential errors caused by manual identification.
Therefore, the intelligent calculation function of BIM technology can make the calculation of engineering quantities get rid of the influence of human factors and obtain more objective data.
At the same time, with the development of artificial intelligence, the calculation system of BIM can automatically conduct a comprehensive inspection of the model by using the cloud library and intelligent algorithms to improve the accuracy of the calculation of the model.
2. Improve the cost control ability in the design stage
First of all, the improvement of the calculation efficiency of the engineering quantity is beneficial to the limit design.
The automatic calculation method based on BIM technology can calculate the construction quantities faster, and giving realistic assumptions for the cost of the design scheme to the designer in time, which is convenient for cost control in the early stage of the design.
Second, the design based on BIM technology can better cope with design changes.
Under the traditional cost accounting method, once a design change occurs, the cost engineer needs to manually check the design change to find the impact on the cost. This process is not only slow, but also unreliable.
The integration of BIM software and cost calculation software makes consistent association of cost and space data, which can automatically detect what has changed, visually display the change results, and feed back the results to designers, so that they can clearly understand the design scheme The impact of changes on costs.
3. Improve engineering dynamic analysis ability
The cost analysis in the engineering cost management in the traditional environment uses 2D drawings to be projected over each other to find the project problems & clashes, then analyze the problems, correct the problems to reduce the engineering cost. this all sounds a good effort but actually it is wasting of time and increasing the error factors because this engineering processes relay only on a 2D analyzes , and may not find many different problems which are hidden in the 3D realistic world, and also solve the clash require to change again the quantities, and analyze the comparison before and after , and all of this is happens manual!
The rich parameter information and multi-dimensional business information of the BIM model can automatically find the clashes and after being solve can assist the cost analysis and control capabilities of different stages and different businesses. At the same time, with the support of a unified 3D model database, the association and binding of different latitude information such as model, cost, flow section, process and time have been carried out from the very beginning.
In the process, statistics, analysis and decision-making can be realized in real time data with the least time, which ensures the efficiency and accuracy of multi-dimensional cost analysis, as well as the effectiveness and pertinence of cost control.
Does BIM technology have this great effinicy power?
Let’s talk with data to see how much money BIM technology can save.
A residential complex building project, total project area: 7500.5㎡, total underground construction area: 2500㎡, 4 floors above ground, 1 floor underground, total building height 15 m, floor height 3.2m.
In the architecture design stage after submitting the workshop drawings, the customer found out that due to changing of the authority rules, the height of the building can be increased to 17 sqm, and this means the architect should add new floor and change the whole project documents from the drawings , 3D , project schedule, and the total cost.
Without a smart BIM processes this change request calculated to be achieved with in 30 days of work with 6 people from the architect side , 1 from the structure , 3 people form the technical engineers, in total of 10 people x 640 working hours , this task calculated with in 15,000 USD.
with BIM process the task has been achieved with 6 people in 15 working day with budget of 4500 usd, with saving amount of 10,500 usd
The advatges of using BIM for the early collisions detection
In the early stage of construction, BIM technology was used to build 3D models of various disciplines. During the modeling process, errors and deviations in the drawing design were found, and they were summarized by major, and then negotiated and communicated with the engineering department and the design institute.
Using BIM technology for collision check and comprehensive pipeline optimization, a total of 1220 collision points were found on the all floor, which required a lot of changes in structure and architecture walls.
There are many collisions between fire fighting, water supply and drainage pipes and bridges.
Through the results of the collision inspection, the Collision Inspection Report and the Plan for Reserving Openings in the Wall were generated, and the construction was carried out in strict accordance with the report and plan, saving 570 man-hours during the pre-embedding of pipes and casings, and the cost saving was 370 × 50 = 28,500 usd.
Through comprehensive pipeline optimization, the elevation of fire protection and water supply and drainage pipelines was changed from 6350 to 3800 usd, the sprinkler pipe was changed from 4320 to 1700, and the structure was changed from 4800 to 3000.
The comprehensive optimization of the pipeline basically solved all the construction difficulties in the early stage of the pipeline construction, greatly improving the construction efficiency. During the professional construction of the installation, the comprehensive pipeline saved 270 labors, and the materials cost was saved by 54,000 usd.
Using BIM technology to accurately arrange pipeline supports and hangers, and accurately budget for the expenditure and structure works, save labor for later installation and construction, and also reduce material waste.
When the original design is constructed to the third floor, the planned consumption of steel bars is 800t, and the planned binding period is 50 days, with an average of 30 people per day, and each person binds 0.5t per day. After using the BIM 3D model for construction, using BIM and the application platform to limit the material collection, BIM model on-site 3D technical disclosure, the actual steel consumption is 794t, saving 6t of steel, and the work is completed in 43 days with quality and quantity, saving 7 days of construction period. Reinforcement construction cost savings: 6×500+30×15×7=6150 usd.
It was originally planned that the work template will consume about 22,000 square meters, and it is planned to be completed in 70 days. The BIM technology is used to understand the key points and difficulties of each construction stage in advance, solve them in time, and improve the work efficiency. It only took 62 days to complete this part of the work task, saving money. 8 days. Cost savings construction: 2000×8=16,000 usd.
When the project reaches the third floor the project have saved 6150+16000= 22150 usd .
Counting the saved labor and construction period, the total cost savings reached more than 77,150 usd + 10,500 in the architecture design stage, then the total is 87,650 usd saving.
It can be seen that the ability of BIM to save engineering expenses and reduce project costs is considerable. And through BIM technology to understand the technical difficulties of the project in advance, to ensure the construction quality.
In the final analysis, BIM technology is just a tool, and we really use the tool. How to use it, how to use it, and what kind of thinking mode is very important. The ultimate goal is to serve us with tools and improve our Productivity, not just building a model.
Finally, I will give you a word: secretly powerful, everything can be expected!
If you want to know in details how the BIM magic can be happens you can click to the link below.
BIM is just a tool and it is important not only using a new tool but using it right
In the final analysis, BIM technology is just a tool, and we really use the tool. How to use it, how to use it, and what kind of thinking mode is very important. The ultimate goal is to serve us with tools and improve our Productivity, not just building a model.
Finally, I will give you a word: secretly powerful, everything can be expected!
If you want to know in details how the BIM magic can be happens you can click to the link below.