Engineering in Practice

Events and Activities

Technical Seminar on Structural Behaviour of Blind-Bolted Connections in Steel-Concrete Composite Building

Technical Seminar:
Structural behaviour of blind-bolted connections in steel-concrete composite building


Date, time & venue

16 August 2023 (Wednesday), 17:00-18:00, Seminar via Zoom Meeting

Organized by

HKIE Civil Division and The Hong Kong Polytechnic University

Programme Highlight

The concrete filled steel tubular (CFST) members have been widely adopted in construction industry due to its superior strength, ductility, and aesthetics. As in practice, the load is transferred from the floors to the column via the beam, it is therefore important to study the connection behaviour between the steel-beam and CFST column. For fabrication of steel I-beam to CFST column connection, the standard bolts are not viable as one cannot access the inside of the hollow tube for tightening, and therefore blind-bolts are adopted. But traditional blind-bolted beam-column connections are referred as pinned connection due to its insufficient stiffness and thus, developing a semi-rigid or rigid moment-resisting bolted connection has always been a challenge in tubular composite construction.  To address this issue, researchers have modified the blind-bolt with extended shank and headed nut to enhance the connection performance. In this regard, laboratory tests have been carried out to investigate the response of anchored blind-bolts with single and group configurations, subjected to tensile and shear loading. The observations from the comprehensive experiments with various design parameters will be discussed. Numerical and analytical findings from the study will also be presented. The conclusions regarding connection strength design influenced by group of anchored blind-bolts, bolt anchorage length and concrete contribution in load transfer will be presented. Lastly, opportunities for using blind-bolted connections in Modular integrated Construction buildings will also be discussed.






Free of Charge.

Prof. Tak-Ming Chan is Professor of Structural Engineering at The Hong Kong Polytechnic University (PolyU) and a Fellow of the Institution of Structural Engineers. He serves as Editor for Thin-Walled Structures and Editorial board member for Steel and Composite Structures. He is the 2022 recipient of the Nishino Prize, awarded by the East Asia-Pacific Conference on Structural Engineering and Construction. He also received the 2021 Faculty Awards for Outstanding Achievement in Teaching (Individual) and in Knowledge Transfer (Team)

Prof. Chan is currently leading a 5-Year (2023 to 2028) Research Impact Fund project entitled “Achieving the Circular Economy in Construction through Deconstruction and Reuse Technologies for Steel and Composite Structures” funded by the Research Grants Council of the Hong Kong Special Administrative Region (HKSAR), China. He is leading a research group at PolyU to develop construction technologies using sustainable practices that supports the HKSAR Government’s “Construction 2.0” vision and the United Nations’ Sustainable Development Goals of - “Sustainable cities and communities”. 

Further information can be found from

Registration & Enquiries

Please complete the on-line registration at The number of participants is limited to 500 on a first-come-first served basis. Priority will be given to members of the Civil Division.

Email registration will not be accepted. Successful applicants will be informed by email and provided a link to the Zoom Meeting at the designated time slot. Participants need to sign in using the membership no. and name entered at the time of registration. A CPD certificate will be issued 3 weeks after the seminar based on this membership no. and name.

For enquiries, please contact Mr. Alan Yan via email: