Analysis Structural analysis such as the analysis for reinforcements and

Analysis structural analysis such as the analysis for

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Analysis Structural analysis, such as the analysis for reinforcements and structural joints. ER Build a detailed structural model (S_ER.2), including the foundation, reinforcements, and structural joints. include the beam, column, foundation, slab, stair, and wall. In the information delivery process, some des- ignated exchange elements are integrated to form an exchange model for other disciplines. – The discipline-specific elements refer to some ele- ments which are only used in the specific task, and not required by other disciplines. The reinforcement is one of discipline-specific elements in the structural model at the detailed design stage, so it is contained in the S_ER.2. Figure 4 illustrates the required structural objects for different ERs. For example, the beams are required by all exchange models. It means that the beams in the struc- tural model must be delivered to architects and MEP en- gineers for collaborative design. In general, the ERs in IDM are manually defined one by one in an Excel table (Lee et al., 2016). It is difficult to reuse these ERs in other scenarios. Based on the required objects in Figure 4, the ERs of structural design informa- tion were documented in a matrix, which was called the ER Matrix for the delivery of structural design informa- tion. A portion of an example of the ER matrix is illus- trated in Figure 5. The ERs in Figure 5 follow the same color-coded as those in Figure 3. The cell with a minus sign (–) means that the object doesn’t have the corresponding attribute. To determine whether the attribute is required or not in the exchange model, three types of options are designed: “R” for the required information, “O” for the optional, and the empty cell for the ones without any requirement.
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564 H. Lai et al. Exchange requirement-based delivery method of structural design information for collaborative design ... Figure 3. Process map of structural design for collaborative design: (a) Overall process map of structural design; (b) Process map of preliminary structural design a) b) Figure 4. Structural objects for different exchange requirements
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Journal of Civil Engineering and Management, 2019, 25(6): 559–575 565 A detailed description of these options is listed as follows: – Required (R): The information must be included in the ER, which forms an exchange model for deliver- ing to downstream applications. – Optional (O): The information is not mandatory in the ER. It means that the exchange model with- out this information still fulfills the requirements of downstream applications. – Empty: The ER doesn’t need the information for delivery. In this case, the exchange model without redundant information will be rapidly delivered to downstream applications, and processed by other software in a more effective way.
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