Talking about the efficient brick arrangement process of Revit?

The traditional brick arrangement of masonry is carried out by painters using CAD software through two-dimensional imagination. Due to the limitation of two-dimensional graphics, it is difficult to observe whether the layout is reasonable at the corner of the wall, the position where two or more walls bite each other, the position of lintels at the openings of doors and windows, and the structural columns. However, if the layout of masonry in complex areas is wrong, it will often be associated with other working walls on the edge. Once there is a problem, it will inevitably affect the actual construction period and even rework. Using Revit to carry out three-dimensional simulation modeling can check and optimize the traditional CAD layout of masonry, avoid the related problems of on-site masonry, and output bricks immediately after the completion of brick arrangement, avoid the mistakes of traditional statistical calculation and save the time spent in statistics.

This paper will briefly describe the whole process of brick arrangement by using Revit software, and emphatically introduce three technical methods of brick arrangement and their advantages and disadvantages. The process of masonry layout using Revit software is as follows: first, secondary structural optimization → second, foundation model establishment → third, masonry layout and list → fourth, drawing application.

2 Secondary structural optimization Firstly, the following contents are optimized according to the Implementation Manual for Deepening Design of Zhongtian No.5 Building (Final Edition). (1) optimization of cast-in-place small masonry wall battlements: optimize small masonry wall battlements not larger than 200mm. (2) Optimization of masonry wall under window: The optimization of reinforced concrete structural wall must be approved by design. (3) One-time cast-in-place optimization of lintel: optimization can be carried out when the height from the bottom of structural beam to the top of doorway is less than 500mm; The lintel and its upper masonry are optimized as one-time integral casting of concrete structural slab and beam; After optimization, both sides of the concrete structural slab must extend into the masonry wall at the door edge100 mm.

3 Foundation model Before the masonry is deepened, it is necessary to establish the structural frame model, and then set the coping, lintel and constructional column according to the design instructions and specifications, which provides the model basis for the masonry layout. (1) Building civil model Firstly, the structure and building model are established according to the construction drawing, including columns, slabs, beams, structural walls, building walls, doors and windows. Only after checking correctly can you create a block model. Here, there is a trick when building walls. After the wall is drawn, the wall height can be drawn efficiently and accurately by using the Olive Mountain Quick Mould → Wall Beam Plate, and it is not necessary to set or modify the wall height one by one. See figure 1 for details.

Figure 1 Function of "beam to wallboard" in Olive Mountain (2) Creation of lintels and capping beams According to the established civil model, design description or relevant specifications, lintels and capping beams are created in batches with the help of Olive Mountain plug-ins. Civil engineering of Mount Olive → lintel and coping. Learn qq communication group 44642 190. Set the beam height and wall length according to the design instructions (the left part of the figure below is set), and the generation range can be set according to individual needs. There are two options: select by floor (you can choose this option when creating in batches) and select interactively (you can choose this option when creating or modifying only a few parts). The following figure shows the selection of batch settings.

Fig. 2 The function of "setting lintels and capping beams in batches" in Olive Mountain (3) Creation of constructional columns If there are drawings of structural constructional columns, constructional columns can be set according to the drawings. This paper introduces the author's mass production of constructional columns according to the principles of relevant specifications and design instructions. According to the established civil engineering model and design description, constructional columns are created in batches with the help of Olive Hill plug-in. Olive mountain civil engineering → constructional column. Note: The parameter setting of "horse fork spacing" in the structural column family automatically generated by the Olive Mountain plug-in may not meet the application requirements. You can edit the constructional column family manually and load it into the project after modification. Fill in the generation method according to the design instructions or specifications. See Figure 3 below for the creation method.

Fig. 3 function of "automatically generating constructional column" in Olive Mountain (4) Before laying, the model is ready to place the wall that needs brick arrangement on the brick arrangement section. In order to clearly see the created masonry brick family, you can set the wall fade through View → Visibility and Graphic Element Replacement → Model Category → Wall → Transparency, and you can close the doors and windows in the Model Category tab.

Figure 4 Setting Wall Transparency in Revit

4 Masonry layout and list Use Revit software for masonry layout. At this stage, there are three common ways. Here, the author briefly introduces these three ways and analyzes their advantages and disadvantages. (1) Create brick row according to curtain wall system: Step 1: Create curtain wall at the required position according to building → wall → curtain wall, and edit the outline if there are doors and windows. Step 2, divide the curtain wall by using the curtain wall grid function, and arrange the horizontal direction first by using the copy or matrix function (pay attention to the distance of mortar joint). Step 3, then use the Add/Delete Line Segment function in the curtain wall grid to delete the vertical grid. And use the copy function to arrange (be careful not to use the matrix function, which will make the grid group and cannot be modified). Step 4, using metric general model → mullions to create mullions family with the same shape as the mortar joint; Load the family, create a new type in the Project Browser → Curtain Wall Mullion, and then edit the type properties. Step 5, make the shape of the aerated block with the metric curtain wall panel, and make the system panel of the aerated block as above; Select the curtain wall, edit the type, and then select the panels and mullions created earlier. Step 6, make a detailed list (you can label the panel and the corresponding wall, such as Q 1, which is convenient for statistical screening). Advantages and disadvantages analysis: advantages: simple and convenient, using vertical mullion to make mortar joint, the effect is real; You don't need to create a family, you can quickly build a building model. Disadvantages: it can not be realized at the junction of T-shaped masonry wall and cross-shaped masonry wall, which is different from reality; It is difficult to handle the opening of doors and windows. After modifying a certain wall height or hole position, it is necessary to re-divide and modify the grid lines. (2) Create brick rows with window families: Step 1: Create new metric window families and create window families with various brick sizes. Step 2: Draw a wall under the tab of Building → Wall. The third step is to place the created aerated block window family on the wall, control the spacing between families, and use the color of the wall itself as the mortar joint. Fourthly, modifying the width of the aerated block window family and placing aerated blocks with different sizes; With different sections, T-walls and other connecting parts can be placed. Step 5, make a detailed list (you can label the window family and the corresponding wall, such as Q 1, which is convenient for statistical screening). Advantages and disadvantages analysis: Advantages: It is relatively simple to set and list parameters using the Metric Window template; At the junction of T-shaped masonry and cross-shaped masonry, the effect is good, which is consistent with the actual situation. You can create door and window openings according to the actual situation. Disadvantages: it takes a lot of calculation to control the spacing between bricks to achieve the effect of mortar joint; Modification of special parts requires manual one-to-one modification of corresponding bricks. (3) Brick arrangement adopts metric conventional mode. Metric general model can set two main families. One is to make only one brick family by using the Metric General Model family template. The other is to use the family template of "line-based metric general model" to make a wall into a family and put it in the family, which is the whole wall based on the above family. At the same time, because the size and quantity of brick family need to be included in the schedule, shared parameters should be added. This kind of family production process is complicated, and this article only introduces the idea. Advantages and disadvantages analysis: Advantages: The first type is flexible to use and can be used to arrange bricks at joints with complex T-shapes or corners; The second family has a high degree of parameterization and intelligent arrangement, without manual arrangement one by one; Both of them are directly deepened on the model, and there is no need to rebuild the model separately. Disadvantages: too many parameters are set, which involves sharing parameters and is more complicated; The second largest family uses arrays when it is created, and the file may get stuck after it is loaded into the project. (4) Comprehensive analysis of advantages and disadvantages The above three methods have been applied in Wu Jian "Deep Blue Community" project and "Emerald Tianyu Phase II" project. After the feedback from the project personnel, the second method is more efficient and flexible, and the deepening result is most consistent with the site, which greatly improves the efficiency of the project personnel in deepening the design. In addition, at this stage, there is also software similar to Guanglianda bim 5D platform, which has the function of arranging bricks and is more intelligent. However, it is precisely because of its intelligence that its adaptability to more irregular walls is weak, there are many manual adjustments, and the one-time capital investment is too large. There are many softwares with brick arranging function on the market, and readers can make a comparative choice according to the project and capital investment.

I believe that after the above introduction, everyone has a certain understanding of Revit's efficient brick arrangement process. Welcome to Zhong Da for more information.

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