BIM technology should be utilized for determining engineering quantity list items, calculating engineering quantities, pricing sub-items, and computing the total cost in construction drawing budgets.
In the process of applying BIM to construction drawing budgeting, a dedicated budget model can be created based on the construction drawing design model. The engineering quantity list items are identified according to list specifications and consumption quotas (including internal quotas). This allows for accurate calculation of engineering quantities, sub-item pricing, and total price estimation. The output can include bidding list items, bidding control prices, or bidding quotation sheets, as illustrated in the image below.
When creating the construction drawing budget model, adjustments should be made to the imported design model to meet the specific requirements of the construction drawing budget.
During the determination of bill of quantities items and quantity calculations, each component model element should be identified and linked to its corresponding bill of quantities item to ensure accurate quantity measurement.
For sub-item pricing, the comprehensive unit price of each bill of quantities item should be established based on quota specifications or internal enterprise quotas. Subsequently, the cost for each component model element can be calculated accordingly.
Finally, when calculating the total price, the sub-item prices for all component model elements should be summed. Additionally, costs related to measures, regulations, and taxes must be included to obtain the complete total price.
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