Evaluation of the Structural Performance of a Novel Methodology for Connecting Modular Units Using Straight and Cross-Shaped Connector Plates in Modular Buildings
The strength capacity of modular buildings is determined by the weakest part, and connections between modular units are often weaker than the modular units themselves. Thus, to verify the safety of modular structures, the structural performance of connections between modular units should be evaluate...
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2020-11-01
|
| Series: | Applied Sciences |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2076-3417/10/22/8186 |
| _version_ | 1797547462875938816 |
|---|---|
| author | Sang-Sup Lee Keum-Sung Park Ju-Seong Jung Kang-Seok Lee |
| author_facet | Sang-Sup Lee Keum-Sung Park Ju-Seong Jung Kang-Seok Lee |
| author_sort | Sang-Sup Lee |
| collection | DOAJ |
| description | The strength capacity of modular buildings is determined by the weakest part, and connections between modular units are often weaker than the modular units themselves. Thus, to verify the safety of modular structures, the structural performance of connections between modular units should be evaluated; the practical suitability of connection methods under a range of construction conditions should also be determined. In conventional modular building structures, modular units are generally connected using bolts between connector plates, interlocking devices, or steel plate welding. However, current methods are not technically or practically suitable for all types of modular buildings, such as high-rise modular buildings. Here, we describe a novel technology for connecting modular units to ensure the safety of modular structures. In this study, straight and cross-shaped metal connectors that use rectangular tubular columns and channel beams were proposed for connecting modules. Their structural performance was evaluated through cyclic loading tests by controlling the story drift angle in the width and longitudinal directions. The experimental results demonstrated that all specimens exhibited relatively stable behavior up to a drift angle of 0.04 rad, and there was a superior response in terms of energy absorption capability in the longitudinal direction results compared to the width direction. However, in comparison to the cross-shaped connector plate, the stiffness of the straight connector plate decreased as the drift angle of the column increased. |
| first_indexed | 2024-03-10T14:44:29Z |
| format | Article |
| id | doaj.art-0b10d670a9d44b60b3d2daa10a80fc73 |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-03-10T14:44:29Z |
| publishDate | 2020-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-0b10d670a9d44b60b3d2daa10a80fc732023-11-20T21:28:27ZengMDPI AGApplied Sciences2076-34172020-11-011022818610.3390/app10228186Evaluation of the Structural Performance of a Novel Methodology for Connecting Modular Units Using Straight and Cross-Shaped Connector Plates in Modular BuildingsSang-Sup Lee0Keum-Sung Park1Ju-Seong Jung2Kang-Seok Lee3Korea Institute of Civil Engineering and Building Technology, Goyang 10223, KoreaKorea Institute of Civil Engineering and Building Technology, Goyang 10223, KoreaDepartment of Architectural Engineering, Hanyang University, Ansan 15588, KoreaDepartment of Smart City Engineering, Hanyang University, Ansan 15588, KoreaThe strength capacity of modular buildings is determined by the weakest part, and connections between modular units are often weaker than the modular units themselves. Thus, to verify the safety of modular structures, the structural performance of connections between modular units should be evaluated; the practical suitability of connection methods under a range of construction conditions should also be determined. In conventional modular building structures, modular units are generally connected using bolts between connector plates, interlocking devices, or steel plate welding. However, current methods are not technically or practically suitable for all types of modular buildings, such as high-rise modular buildings. Here, we describe a novel technology for connecting modular units to ensure the safety of modular structures. In this study, straight and cross-shaped metal connectors that use rectangular tubular columns and channel beams were proposed for connecting modules. Their structural performance was evaluated through cyclic loading tests by controlling the story drift angle in the width and longitudinal directions. The experimental results demonstrated that all specimens exhibited relatively stable behavior up to a drift angle of 0.04 rad, and there was a superior response in terms of energy absorption capability in the longitudinal direction results compared to the width direction. However, in comparison to the cross-shaped connector plate, the stiffness of the straight connector plate decreased as the drift angle of the column increased.https://www.mdpi.com/2076-3417/10/22/8186modular structureconnection between modular unitsconnector platebolted connectionstraight-shaped platecross-shaped plate |
| spellingShingle | Sang-Sup Lee Keum-Sung Park Ju-Seong Jung Kang-Seok Lee Evaluation of the Structural Performance of a Novel Methodology for Connecting Modular Units Using Straight and Cross-Shaped Connector Plates in Modular Buildings Applied Sciences modular structure connection between modular units connector plate bolted connection straight-shaped plate cross-shaped plate |
| title | Evaluation of the Structural Performance of a Novel Methodology for Connecting Modular Units Using Straight and Cross-Shaped Connector Plates in Modular Buildings |
| title_full | Evaluation of the Structural Performance of a Novel Methodology for Connecting Modular Units Using Straight and Cross-Shaped Connector Plates in Modular Buildings |
| title_fullStr | Evaluation of the Structural Performance of a Novel Methodology for Connecting Modular Units Using Straight and Cross-Shaped Connector Plates in Modular Buildings |
| title_full_unstemmed | Evaluation of the Structural Performance of a Novel Methodology for Connecting Modular Units Using Straight and Cross-Shaped Connector Plates in Modular Buildings |
| title_short | Evaluation of the Structural Performance of a Novel Methodology for Connecting Modular Units Using Straight and Cross-Shaped Connector Plates in Modular Buildings |
| title_sort | evaluation of the structural performance of a novel methodology for connecting modular units using straight and cross shaped connector plates in modular buildings |
| topic | modular structure connection between modular units connector plate bolted connection straight-shaped plate cross-shaped plate |
| url | https://www.mdpi.com/2076-3417/10/22/8186 |
| work_keys_str_mv | AT sangsuplee evaluationofthestructuralperformanceofanovelmethodologyforconnectingmodularunitsusingstraightandcrossshapedconnectorplatesinmodularbuildings AT keumsungpark evaluationofthestructuralperformanceofanovelmethodologyforconnectingmodularunitsusingstraightandcrossshapedconnectorplatesinmodularbuildings AT juseongjung evaluationofthestructuralperformanceofanovelmethodologyforconnectingmodularunitsusingstraightandcrossshapedconnectorplatesinmodularbuildings AT kangseoklee evaluationofthestructuralperformanceofanovelmethodologyforconnectingmodularunitsusingstraightandcrossshapedconnectorplatesinmodularbuildings |