by With the continuous in-depth development of the construction industry and the promotion and application of various new processes and technologies, the construction cycle of buildings is continuously shortened and the cost business volume is increasing.
How to complete the project measurement, project group price and other related cost work more quickly, efficiently and accurately is the challenge faced by the cost personnel at present—– Author: Huang Wei – Hello ~ Hello.
The brand-new column “product theory”, which has been prepared for a long time, is online.
Each column will give you an in-depth analysis of the value of various products in combination with the actual project.
While learning business, you can also master the latest function points of the product and turn the cost into a simple thing.
In the first issue of “product theory” in 2020, Mr.
Huang Wei, who has rich on-site practical experience in cost, took the actual industrial plant project as an example and combined with the business to share with you how to model efficiently and calculate accurately in Guanglianda civil BIM measurement gtj2021.
Project introduction: the project of a testing base is an industrial plant project, with a total construction area of 40318.92m2 and a building height of 23.8m; Number of floors above ground: 1# plant 4 floors, 2# plant 5 floors; Number of underground floors: 1 floor; The safety level of the building structure of the project is grade II, the design service life is 50 years, the seismic fortification category of the building is class C, the seismic fortification intensity is grade 6, and the structural type is reinforced concrete frame structure.
(the new function of gtj2021 is used only for 1# plant) I.
most of the industrial plants with vertical and horizontal haunching of beam and plate members are long-span structures.
Considering the stress characteristics and stability of the structure, it is common to set haunching in the horizontal and vertical directions of beam and plate.
The software version before the function of haunching in the vertical direction of beam can be handled, but the horizontal haunching is handled Basically by hand, Need to use [table input]: according to the requirements of the drawing, the reinforcement node information is established for each haunching position and input into the software respectively.
The method is shown in the following figure: beam haunching is calculated manually, and plate haunching is calculated manually.
Due to the large number of haunching nodes, the workload of manual calculation by using table input is large and the efficiency is low.
How can the new software handle it efficiently? 1.
Plate structure The processing method of gtj2021 for horizontal haunching of parts ① supports haunching of plate surface and plate bottom, supports single element drawing and batch automatic generation, and improves modeling efficiency.
② The haunch reinforcement provides a variety of anchor nodes to meet the requirements of various drawings.
③ the plate haunch supports three-dimensional reinforcement, which is convenient for inspection and verification.
Combined with the new civil engineering gtj2021, the actual results of plate horizontal haunching are as follows: the drawing requirements software models the three-dimensional field effect of reinforcement.
2.
The treatment method of beam member horizontal haunching gtj2021 ① the functions of “generating beam haunching”, “viewing beam haunching” and “deleting beam haunching” are added in the secondary editing group of beam members.
The location setting of haunching is very flexible, It can efficiently handle the needs of all kinds of beam haunching.
② generate beam haunch supports manual and automatic generation, and provides a variety of reinforcement settings and node settings to meet various needs to the greatest extent.
③ the beam haunch supports the three-dimensional reinforcement, which is convenient for inspection and verification.
Combined with the actual treatment of beam horizontal haunching in the new civil engineering gtj2021, the results are as follows: drawing requirements, software modeling, three-dimensional field effect of reinforcement, II.
Structure of non shaded area of constrained edge components.
Considering the seismic requirements, there is a setting of “structure of non shaded area of constrained edge components” in a few parts of the industrial plant project, which is common in civil residential projects.
There are many locations in civil residential projects, There are many forms of reinforcement (as shown in the figure below), and a member may have several methods to restrict the construction of non shaded areas of edge members [table input] is very inconvenient for manual calculation, and can not display the three-dimensional effect for inspection, so the calculation efficiency is very low and not accurate enough.
Table input is used to calculate the non shaded area structure of constrained edge components one by one.
The processing method of gtj2021 ① add new constrained edge non shaded area components, and provide a variety of different forms of reinforcement parameter diagrams ② when drawing the non shaded area of the constraint edge, the width depends on the shear wall and column, which can automatically adapt to the width of the wall and column, and can be flexibly, conveniently and quickly arranged to generate different section shapes.
③ it can realize three-dimensional reinforcement and facilitate inspection and verification.
In combination with the new civil engineering gtj2021, the results of the actual treatment of components in the non shaded area of the constraint edge are as follows: the user-defined veneer of three beam components is located in the outer wall line modeling position of windows, bay windows, balconies and other outer walls in general buildings.
When calculating the external wall decoration quantities, the line calculation surface cannot be measured as a whole and needs to be split for calculation, Moreover, other decoration methods can not well deal with the output of such components.
In the past, manual calculation of quantities was used to solve this situation, The calculation formula of quantities (as shown in the figure below) must be entered manually at each position, which is cumbersome and not intuitive.
It is not convenient for the inspection of quantities, and it is not possible to quickly judge whether there is a problem of missing calculation of quantities.
The decorative lines are treated with custom veneer in gtj2021 ① the custom veneer is added with new beams and ring beams The layout of (rectangular, parametric and special-shaped) components supports point layout and intelligent layout.
In the intelligent layout, the required primitives are generated in batch by setting the veneer position with one key, which is fast and efficient..
