After receiving the drawings from the design institute, the curtain wall consulting company often finds that the designer did not divide the curtain wall skin or the division size is too large, or the division size does not meet the price of conventional materials, so the consultant company needs to base the curtain wall material on the curtain wall material and the designer's design intention. Carry out curtain wall division in Rhino or Revit. In order to facilitate the docking with the architect, the conventional square curtain wall skin will be divided into local sections using Revit, and then divided into multiple schemes and configurations will be compared. Finally, the overall curtain wall will be divided into sections after being confirmed by the architect. Continuous adjustments are required during the partitioning process. At this time, Revit's powerful parametric function can be revealed. By simply adjusting parameters or curtain wall panel families, the partition size can be adjusted, and the final curtain wall skin model can be formed according to the architect's intention. , this is often referred to as the curtain wall geometry control skin system. Curtain wall geometry control skin system is personally considered to be a very important part in curtain wall engineering design, blanking and construction. Unfortunately, currently, curtain wall designers and engineers have no concept and lack of understanding of the curtain wall geometric control skin system. Due to the structure of the curtain wall, it is often necessary to expand the control surface of the outer skin, which deviates from the expression that the architect wants. From the architect's point of view, this is very unprofessional. From the owner's point of view, the curtain wall skin is expanded outwards, and the architecture The area increases, the floor area ratio increases, and the cost also increases. The rationality of the division of curtain wall panels largely depends on the architect's understanding of the curtain wall and the time when the consultant company participated in the architectural design in the early stage. The deeper the architect's understanding of the curtain wall structure and the earlier the consultant company intervenes, the more time is reserved for There will be more time for curtain wall optimization, so there may not be a problem that the curtain wall geometry control system must be expanded.

In the process of analyzing the curtain walls of special-shaped projects, some panels will involve single or double curved surfaces. There are plasticity problems in the processing of materials. If the curvature is too large or too small, it will have an impact on the processing cost. Moreover, some materials cannot Any curvature. This requires Rhino grasshopper to be used in combination to first analyze the curvature of the panel to determine whether the material can be processed at this curvature, whether the curvature here needs to be optimized, and whether the material here needs to be replaced. This allows architects and owners to more intuitively understand which areas of the project may affect the cost of curtain wall construction. Rhino can be used to hyperbolically optimize single panels and single panel optimization flat panels, thereby achieving the effect of reducing curtain wall construction costs.

After the curtain wall designer designs the nodes of the curtain wall system, the BIM engineer builds a three-dimensional model to carefully verify the overlapping relationship, corner space relationship, and connection relationship with the main structure of the curtain wall system to ensure the feasibility of on-site installation operations.

During the implementation of curtain wall projects, we often encounter curtain wall panels and embedded parts in special-shaped spaces that cannot be accurately positioned through traditional two-dimensional drawings. So how to solve this problem? There are two methods here. The first is to use a combination of Revit Dynamo to output three-dimensional installation positioning points for plates and embedded parts. The second is to use Rhino grasshopper to extract the plates in the BIM model, use parametric software to automatically generate plate installation positioning points and embedded parts installation positioning points, and then export the three-dimensional positioning data in table form to guide the complex-shaped plates on site through three-dimensional points. and positioning and installation of embedded parts. The advantages and disadvantages of these two methods are compared as follows: Using the combination of Revit Dynamo, the installation and positioning information of panels and embedded parts can be imported into the corresponding Revit components through Dynamo. The relevant three-dimensional space installation and positioning information retained on the component attributes can be viewed at any time later without modifying the component position. , which greatly facilitates the use of construction site data. Rhino grasshopper combination method is difficult to retain relevant data, and it is difficult for people who do not understand grasshopper to intuitively see the three-dimensional installation positioning information related to plates and embedded parts. However, Rhino grasshopper combination method is more efficient than Revit Dynamo combination for later modification. The form is much higher, and there are more people using Rhino grasshopper software in curtain wall projects, and they communicate with each other more, which makes Rhino grasshopper technology further deepened in curtain wall applications.

Collision detection is divided into two aspects: collision detection of the curtain wall system itself and collision detection with other professionals. Under the works of mature designers and regular curtain wall systems, it is rare that the curtain wall system itself cannot be installed and assembled. Human space imagination is limited, and collisions often occur in special-shaped space shapes. When working on an exhibition hall project, the two-dimensional expression drawings did not reveal systemic problems with the curtain wall. However, through three-dimensional modeling, it was found that the curtain wall system had spatial misalignment problems at the intersections. It was difficult to splice and install by adjusting the system space, which was consistent with the design. After communication with the designers, the space plates and intersection angles were analyzed, and the curtain wall system was redesigned according to the angle range. Finally, the model was re-modeled to verify that the assembly and splicing installation could be achieved. Through three-dimensional modeling, you can avoid mistakes that may occur when the design is deepened in the later stage and found to be unable to be assembled and installed.

In order to facilitate and intuitively control the entire curtain wall project as a whole, by creating BIM models of the overall and partial curtain wall systems, curtain wall designers can intuitively and clearly grasp the overall effect of the model, key and difficult areas, and system construction and assembly relationships.

In the work of a curtain wall consulting company, one of the important tasks is to estimate the preliminary cost of the curtain wall. The traditional method is to simply calculate the total quantity of materials through CAD, and then estimate the preliminary cost based on the different unit prices of the materials. There are some problems here. It is impossible to identify the true area of ​​some closures or local irregularities. The traditional method of project quantity estimation may produce relatively large errors, resulting in a large difference between the initial cost estimate and the cost estimate of the subsequent construction unit, which affects the owner's curtain wall cost control. Through the creation of the BIM model, firstly, the real curtain wall area can be reflected more accurately; secondly, the project quantities can be calculated separately according to the curtain wall material and difficulty level, so that a more accurate preliminary cost estimate of the curtain wall can be obtained, thus avoiding the need for subsequent There is a huge difference in construction costs.