Study of Effective Length Factor of Frame–Core Wall Structure with Cross-Layer Columns
The aim of this study was to examine the effective length factor of frame–core wall structures with cross-layer columns, which are relevant for current high-rise building construction. Using the finite element method, improved inflection point method (D-value method), and GB50017-2017, the study inv...
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-06-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/13/12/6875 |
| _version_ | 1797596314476740608 |
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| author | Zaigen Mu Yue Xu Yuqing Yang Zhong Fan |
| author_facet | Zaigen Mu Yue Xu Yuqing Yang Zhong Fan |
| author_sort | Zaigen Mu |
| collection | DOAJ |
| description | The aim of this study was to examine the effective length factor of frame–core wall structures with cross-layer columns, which are relevant for current high-rise building construction. Using the finite element method, improved inflection point method (D-value method), and GB50017-2017, the study investigated how the height and distribution of cross-layer columns affect the lateral stiffness ratio, natural vibration period, member internal force, maximum interlayer displacement angle, and effective length factor of the column in the frame–core wall structures. However, the force acting in the frame in the weak axis direction that is considered in GB50017-2017 does not reflect the actual mechanical behavior. Therefore, when determining the effective length factor of cross-layer columns, the interaction between the remaining frames’ sub-structure and cross-layer columns is considered and the effective length factor is modified accordingly. A simplified model of a 140 m frame–core wall structure was established for analysis, and it was assumed that rigid links connect the frame and core wall hinged at both ends. The results show that increasing the height and number of cross-layer columns decreased the lateral stiffness ratio of the structure, and increased the maximum interlayer displacement angle and natural vibration period. Furthermore, the effective length factor of the structure decreased with an increase in height and the number of cross-layer columns. The modified effective length factor agrees well with the results obtained by the finite element method. These findings provide a useful reference for calculating the load-carrying capacity of cross-layer columns in engineering. |
| first_indexed | 2024-03-11T02:49:48Z |
| format | Article |
| id | doaj.art-78fd726f991d4f7e9c7224d0ed5931a3 |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-03-11T02:49:48Z |
| publishDate | 2023-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-78fd726f991d4f7e9c7224d0ed5931a32023-11-18T09:05:46ZengMDPI AGApplied Sciences2076-34172023-06-011312687510.3390/app13126875Study of Effective Length Factor of Frame–Core Wall Structure with Cross-Layer ColumnsZaigen Mu0Yue Xu1Yuqing Yang2Zhong Fan3School of Civil and Resource Engineering, University of Science and Technology Beijing, Beijing 100083, ChinaSchool of Civil and Resource Engineering, University of Science and Technology Beijing, Beijing 100083, ChinaSchool of Civil and Resource Engineering, University of Science and Technology Beijing, Beijing 100083, ChinaChina Architecture Design & Research Group, Beijing 100044, ChinaThe aim of this study was to examine the effective length factor of frame–core wall structures with cross-layer columns, which are relevant for current high-rise building construction. Using the finite element method, improved inflection point method (D-value method), and GB50017-2017, the study investigated how the height and distribution of cross-layer columns affect the lateral stiffness ratio, natural vibration period, member internal force, maximum interlayer displacement angle, and effective length factor of the column in the frame–core wall structures. However, the force acting in the frame in the weak axis direction that is considered in GB50017-2017 does not reflect the actual mechanical behavior. Therefore, when determining the effective length factor of cross-layer columns, the interaction between the remaining frames’ sub-structure and cross-layer columns is considered and the effective length factor is modified accordingly. A simplified model of a 140 m frame–core wall structure was established for analysis, and it was assumed that rigid links connect the frame and core wall hinged at both ends. The results show that increasing the height and number of cross-layer columns decreased the lateral stiffness ratio of the structure, and increased the maximum interlayer displacement angle and natural vibration period. Furthermore, the effective length factor of the structure decreased with an increase in height and the number of cross-layer columns. The modified effective length factor agrees well with the results obtained by the finite element method. These findings provide a useful reference for calculating the load-carrying capacity of cross-layer columns in engineering.https://www.mdpi.com/2076-3417/13/12/6875frame–core wall structurecross-layer columneffective length factormechanical behaviorFEM analysis |
| spellingShingle | Zaigen Mu Yue Xu Yuqing Yang Zhong Fan Study of Effective Length Factor of Frame–Core Wall Structure with Cross-Layer Columns Applied Sciences frame–core wall structure cross-layer column effective length factor mechanical behavior FEM analysis |
| title | Study of Effective Length Factor of Frame–Core Wall Structure with Cross-Layer Columns |
| title_full | Study of Effective Length Factor of Frame–Core Wall Structure with Cross-Layer Columns |
| title_fullStr | Study of Effective Length Factor of Frame–Core Wall Structure with Cross-Layer Columns |
| title_full_unstemmed | Study of Effective Length Factor of Frame–Core Wall Structure with Cross-Layer Columns |
| title_short | Study of Effective Length Factor of Frame–Core Wall Structure with Cross-Layer Columns |
| title_sort | study of effective length factor of frame core wall structure with cross layer columns |
| topic | frame–core wall structure cross-layer column effective length factor mechanical behavior FEM analysis |
| url | https://www.mdpi.com/2076-3417/13/12/6875 |
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