Citigroup Centre - Fifteen-Storey Office Building

Fifteen-Storey High-Rise Office Tower

AN EXISTING REINFORCED CONCRETE FRAMED STRUCTURE

Tino Structures was engaged by EQ Struc Limited to provide key technical services on the Citigroup Centre building for the leading NZX-listed property group, Argosy Property Limited. The subject building is an existing fifteen-storey high-rise Reinforced Concrete (RC) framed structure. The scope of our work includes the following:

• Detailed site inspection and investigations to determine the as-built configuration of the building

• 3D linear and non-linear displacement-based analysis of the primary and secondary structural elements of the building for a Detailed Seismic Assessment (DSA)

• Analysis of the deep foundations and the soil-foundation-structure-interactions during a major earthquake

• Technical review and advice on the detailed design of the structural upgrade to improve the seismic performance of the building and strengthen the building for the proposed alterations at the basement and podium levels

WHAT OUR CLIENTS SAY…

“I worked with Dr John on the review and seismic assessment, using non-linear static methods, of an existing multi-storey structure within Central Auckland. Dr John was selected due to his knowledge in this area and the fact he had successfully undertaken assessments on similarly scaled buildings in the past.
Dr John was the main engineer involved with the project and completed the majority of the desktop review and the detailed analysis work. John also interfaced with the client during the project.
The project was completed within a tight timeframe with positive feedback from the client. It provided useful and robust information on the structural capacity and performance of their building. This allowed them to plan for further works within the building. For EQ Struc, it helps to build client rapport by delivering a quality service which Dr John most definitely delivered.  
Dr John is a professional in this conduct and has a significant depth of knowledge in his areas of expertise.
He is technically capable and professional. He can add significant value to very challenging projects.”

— PETER LIU, DIRECTOR OF EQ STRUC LTD, PROFESSIONAL SERVICES FIRM OFFERING TECHNICAL SERVICES IN STRUCTURAL ENGINEERING

“Dr John Jing worked with Argosy on a particularly unusual job at 23 Customs Street. Whilst working with him we found the services very prompt, courteous and obliging. He had a great understanding of what we needed to achieve and although it was a small job it got 100% of his attention.
Dr John is very efficient and good at what he does. Even in the case of urgent jobs, the response time was excellent.
Overall, we got the desired result and would happily use Dr John Jing for structural engineering projects again.”

— GRAHAM RUSSELL, ARGOSY PROPERTY LTD, LEADING NZX-LISTED PROPERTY GROUP