2026-09-23T16:30:44Zhttps://openrepository.aut.ac.nz/server/oai/requestoai:openrepository.aut.ac.nz:10292/140772026-06-13T16:18:44Zcom_10292_3col_10292_5
AUT Research Repository
advisor
Zarnani, Pouyan
author
Shabankareh, Seyedmohsen
2021-03-29T01:44:18Z
2021-03-29T01:44:18Z
2021
https://hdl.handle.net/10292/14077
Moment-resisting frames are one of the efficient lateral-load resisting systems in terms of providing architectural freedom in design and widely distributing the seismic forces within the structure and into the foundation. Recent major earthquakes have resulted in significant plastic deformations in the beams, columns and connections causing irrecoverable damage in structures. As a result, engineers have focused on developing new systems which not only provide the life-safety of the residents but also minimise the damage such that the building could be reoccupied quickly after severe events with minimal business interruption and repair costs.
In this research, a self-centring damage avoidance concept using an innovative Resilient Slip Friction Joint (RSFJ) is developed for steel Moment Resisting Frames (MRFs). The RSFJ provides the self-centring behaviour as well as energy dissipation in one compact component requiring no post-event maintenance. In this concept, the beam is connected to the column using a pin assembly at top, and the RSFJs acting in tension and compression at the beam bottom. The RSFJs allow for the gap opening in the connection during loading and re-centre the system upon unloading. Furthermore, a secondary collapse-prevention fuse within the RSFJ is considered to keep maintaining ductile behaviour in the system in case of an event greater than the design earthquake.
In this research, an analytical model was developed to accurately predict the moment-rotation behaviour of this system. The seismic performance of the proposed concept was investigated by a full-scale beam-end connection test. The tests results validate the predictive model and demonstrate the efficiency of this new self-centring system for the seismic damage avoidance design of MRFs.
en
Moment resisting frame
Resilient Slip Friction Joint
Damage Avoidance
Self-Centring
Energy dissipation
Flag-Shaped behavior
Connection
Seismic Damage Avoidance Design of Moment Resisting Frames Using a New SelfâCentering Friction Connection System
Thesis
PHA+PGI+REVDTEFSQVRJT048L2I+PC9wPg0KDQo8cD5UaGlzIHRoZXNpcyBpcyBteSBvd24gd29yayBhbmQsIHRvIHRoZSBiZXN0IG9mIG15IGtub3dsZWRnZSBhbmQgYmVsaWVmLCBpdCBjb250YWluczo8L3A+DQogICA8dWw+DQoJPGxpPiBubyBtYXRlcmlhbCBwcmV2aW91c2x5IHB1Ymxpc2hlZCBvciB3cml0dGVuIGJ5IGFub3RoZXIgcGVyc29uLCBleGNlcHQgd2hlcmUgdGhpczxicj5pcyBleHBsaWNpdGx5IGRlZmluZWQgaW4gdGhlIGFja25vd2xlZGdlbWVudHM7PC9saT4NCiAgICAgICAgPGxpPm5vIG1hdGVyaWFsIHdoaWNoIHRvIGEgc3Vic3RhbnRpYWwgZXh0ZW50IGhhcyBiZWVuIGFjY2VwdGVkIGZvciB0aGUgcXVhbGlmaWNhdGlvbjxicj5vZiBhbnkgb3RoZXIgZGVncmVlIG9yIGRpcGxvbWEgb2YgYSB1bml2ZXJzaXR5IG9yIG90aGVyIGluc3RpdHV0aW9uPGJyPm9mIGhpZ2hlciBsZWFybmluZy48L2xpPg0KICAgPC91bD4NCjxwPjxiPlRoaXJkIFBhcnR5IENvcHlyaWdodCBTdGF0ZW1lbnQ8L3A+PC9iPg0KCTxwPkkgaGF2ZSBlaXRoZXIgdXNlZCBubyBzdWJzdGFudGlhbCBwb3J0aW9ucyBvZiB0aGlyZCBwYXJ0eSBjb3B5cmlnaHQgbWF0ZXJpYWwsIGluY2x1ZGluZzxicj5jaGFydHMsIGRpYWdyYW1zLCBncmFwaHMsIHBob3RvZ3JhcGhzIG9yIG1hcHMsIGluIG15IHRoZXNpcyBvciBJIGhhdmUgb2J0YWluZWQgcGVybWlzc2lvbjxicj5mb3Igc3VjaCBtYXRlcmlhbCB0byBiZSBtYWRlIGFjY2Vzc2libGUgd29ybGR3aWRlIHZpYSB0aGUgaW50ZXJuZXQuIElmIHBlcm1pc3Npb24gaGFzPGJyPm5vdCBiZWVuIG9idGFpbmVkLCBJIGhhdmUgcmVtb3ZlZCB0aGUgdGhpcmQgcGFydHkgY29weXJpZ2h0IG1hdGVyaWFsIGZyb20gdGhlIGRpZ2l0YWwgY29weS48L3A+
URL
https://openrepository.aut.ac.nz/bitstreams/66231a18-9573-4bd1-a73d-f2e0f179af7e/download
File
MD5
69a2f17e02d9069f638435a38c3f1299
4502970
application/pdf
ShabankarehS.pdf
URL
https://openrepository.aut.ac.nz/bitstreams/62fc188d-c690-4573-a8b6-8234293252da/download
File
MD5
24e45cb75a2f66f1ae8ee48ef3581c21
103730
text/plain
ShabankarehS.pdf.txt