You can use this as a template or a direct submission for a course or technical report.
These properties are calculated based on the structural elements, such as beams, columns, walls, and slabs, that make up the building.
used to verify a building's seismic weight and dynamic characteristics. It provides a tabulated breakdown of the total mass attributed to each floor level, which is essential for calculating seismic base shear and ensuring the accuracy of the structural model. 1. Definition and Source of Mass The values in the story mass summary are derived from the Mass Source defined by the user. Element Self-Mass
Check: Expected $5 \times 600 = 3000 \text kN$. Error = 0.07% → Acceptable.
to include dead loads and a portion of live loads (standard seismic practice often uses 1.0 for Dead/Super Dead and 0.25 for Live Load). Lump Lateral Mass at Story Levels
1. How to Access the Table
Before you can view the mass summary, you must ensure you have defined your mass source correctly (via Define > Mass Source). Once the model is analyzed, follow these steps:
Missing Diaphragms: Mass defined on shells or points might not appear correctly in story summaries if they aren't properly associated with a floor diaphragm. TECH TIPS: Mass Source Definition in ETABS
8. References
- Computers and Structures, Inc. (2023). ETABS 21: Analysis Reference Manual. CSI.
- ASCE/SEI 7-22. (2022). Minimum Design Loads for Buildings and Other Structures. American Society of Civil Engineers.
- Wilson, E. L. (2002). Three-Dimensional Static and Dynamic Analysis of Structures. Computers and Structures, Inc.
Verify Mass Sources: Ensure that the Mass Source (e.g., self-weight, specified dead loads, and a percentage of live loads) is correctly calculated by the software.
Etabs Mass Summary By Story High Quality May 2026
You can use this as a template or a direct submission for a course or technical report.
These properties are calculated based on the structural elements, such as beams, columns, walls, and slabs, that make up the building.
used to verify a building's seismic weight and dynamic characteristics. It provides a tabulated breakdown of the total mass attributed to each floor level, which is essential for calculating seismic base shear and ensuring the accuracy of the structural model. 1. Definition and Source of Mass The values in the story mass summary are derived from the Mass Source defined by the user. Element Self-Mass
Check: Expected $5 \times 600 = 3000 \text kN$. Error = 0.07% → Acceptable.
to include dead loads and a portion of live loads (standard seismic practice often uses 1.0 for Dead/Super Dead and 0.25 for Live Load). Lump Lateral Mass at Story Levels
1. How to Access the Table
Before you can view the mass summary, you must ensure you have defined your mass source correctly (via Define > Mass Source). Once the model is analyzed, follow these steps:
Missing Diaphragms: Mass defined on shells or points might not appear correctly in story summaries if they aren't properly associated with a floor diaphragm. TECH TIPS: Mass Source Definition in ETABS
8. References
- Computers and Structures, Inc. (2023). ETABS 21: Analysis Reference Manual. CSI.
- ASCE/SEI 7-22. (2022). Minimum Design Loads for Buildings and Other Structures. American Society of Civil Engineers.
- Wilson, E. L. (2002). Three-Dimensional Static and Dynamic Analysis of Structures. Computers and Structures, Inc.
Verify Mass Sources: Ensure that the Mass Source (e.g., self-weight, specified dead loads, and a percentage of live loads) is correctly calculated by the software.
