鋼筋混凝土結構具有堅固、耐久、防火性能佳、建造成本低廉的優點，故為目前台灣建築工程中的主流。而工程預算控制是工程專案能否成功的重要程序，傳統工程預算的製作方式係由人力自二維設計圖面中讀取鋼筋基本資料後計算工程數量，其過程繁雜且耗時。目前工程算量軟體已經廣泛運用於工程結構鋼筋量的的計算中，在一定程度上提高工作效率與準確性，然而受限於技術與工作模式中仍存在問題，使得鋼筋算量人員利用現有算量軟體仍須耗費大量時間與精力。然隨著建築資訊模型(Building Information Modeling，BIM)技術的發展應用，價值工程的傳統工作模式受到影響，鋼筋數量計算方式也發生變化。依據BIM之物件化與參數化的特性，應用於鋼筋量計算上，不僅可大幅減少人力與時間的需求外，亦可降低人為錯誤，提升鋼筋數量計算之正確性。在變更設計時，更可快速自動更新鋼筋的配置並重新計算鋼筋量，進而減少變更設計時之工作量。
本研究針對一棟鋼筋混凝土大樓建案作為案例，依照建案之二維設計圖面，應用Revit建立三維建築空間模型與鋼筋結構模型，再應用其Structure中之Extension功能擷取計算鋼筋數量，然後與傳統專業精算方式進行比較，以驗證BIM在工程數量計算上之優勢。
依據鋼筋之需求尺寸與數量。本研究分別利用線性規劃單行（Simplex Method）與自我調適生物共生演算法(Self-tuning SOS)進行鋼筋裁切規劃(Trim planning)，目標函數求解鋼筋裁切後之殘料(Scap)極小化，並分析檢討其數量結果之差異性。

The reinforced concrete structure has the advantages of strongness, durability, good fire resistance and low construction cost, so it is the mainstream in Taiwan's construction projects. Engineering budget control is an important procedure for the success of engineering projects. The traditional engineering budget is produced by manpower reading the basic data from the 2D design drawing and calculating the number of projects. The process is complicated and time consuming. At present, the engineering calculation software has been widely used in the calculation of the amount of steel in the engineering structure, which improves the work efficiency and accuracy to a certain extent. However, it is still limited by the technical and working modes, so that the reinforcement calculation personnel can use the existing calculation. The amount of software still takes a lot of time and effort. However, with the development and application of Building Information Modeling (BIM) technology, the traditional working mode of value engineering is affected, and the calculation method of the amount of steel bars also changes. According to the object-oriented and parameterized characteristics of BIM, it can not only reduce the manpower and time requirements, but also reduce human error and improve the correctness of the calculation of the number of steel bars. When changing the design, you can quickly and automatically update the configuration of the reinforcement and recalculate the amount of reinforcement, thus reducing the amount of work required to change the design.

In this study, a reinforced concrete building was built as a case. According to
the two-dimensional design drawing of the case, Revit was used to build a
three-dimensional building space model and a steel structure model, and then
the Extension function was used to calculate the number of steel bars, and then
the traditional professional actuarial The method is compared to verify the
advantage of BIM in engineering quantity calculation.
According to the size and quantity of steel required. In this study, the simplex
method and the Self-tuning SOS were used to carry out the steel trimming
planning (Trim planning), and the objective function was used to solve the
minimization of the residual material (Scap) after the steel cutting. And analyze
the differences in the quantitative results.

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