A photograph captioned by BeckerFraserPhotos, "Demolition workers in the Hotel Grand Chancellor".
Photograph captioned by BeckerFraserPhotos, "Demolition workers up high on the Hotel Grand Chancellor".
Photograph captioned by BeckerFraserPhotos, "Nearly everyone in the vicinity of the Hotel Grand Chancellor is focused upon the demolition activities".
A photograph captioned by BeckerFraserPhotos, "Workers deconstructing the Hotel Grand Chancellor. Panels are being detached and the crane is lowering them to the ground".
A photograph captioned by BeckerFraserPhotos, "Demolition workers in the Hotel Grand Chancellor".
Photograph captioned by BeckerFraserPhotos, "A demolition worker up high on the Hotel Grand Chancellor".
A panel being lowered by a crane during the deconstruction of the Hotel Grand Chancellor.
A panel being lowered by a crane during the deconstruction of the Hotel Grand Chancellor.
A panel being lowered by a crane during the deconstruction of the Hotel Grand Chancellor.
A panel being lowered by a crane during the deconstruction of the Hotel Grand Chancellor.
Photograph captioned by BeckerFraserPhotos, "Demolition workers up high on the Hotel Grand Chancellor".
A pdf copy of the third introductory panel of Guy Frederick's 'The Space Between Words' exhibition. The panel includes discussion on how Frederick and others in Canterbury responded to the 2010 and 2011 Canterbury earthquakes.
A photograph of a gap between two wall panels at the Diabetes Centre on Hagley Avenue.
A photograph of a crack in the wall panelling above a window in the Diabetes Centre.
A photograph of a ceiling in the Diabetes Centre with several missing panels.
A photograph of a displaced roof panel in the Diabetes Centre on Hagley Avenue. The panel was displaced during the 4 September 2010 earthquake.
A video of the panel during the first plenary discussion at the 2016 People in Disasters Conference. The panel is made up of keynote speaker Sir John Holmes and guests David Meates and Arihia Bennett.
Several concrete cladding panels were damaged during the 2011 Christchurch Earthquakes in New Zealand. Damage included partial collapse of panels, rupture of joint sealants, cracking and corner crushing. Installation errors, faulty connections and inadequate detailing were also contributing factors to the damage. In New Zealand, two main issues are considered in order to accommodate story drifts in the design of precast cladding panels: 1) drift compatibility of tieback or push-pull connections and 2) drift compatibility of corner joints. Tieback connections restrain the panels in the out-of-plane direction while allowing in-plane translation with respect to the building frame. Tieback connections are either in the form of slots or oversized holes or ductile rods usually located at the top of the panels. Bearing connections are also provided at the bottom of panels to transfer gravity loads. At the corners of a building, a vertical joint gap, usually filled with sealants, is provided between the two panels on the two orthogonal sides to accommodate the relative movement. In cases where the joint gap is not sufficient to accommodate the relative movements, panels can collide, generating large forces and the likely failure of the connections. On the other hand, large gaps are aesthetically unpleasing. The current design standards appear to recognize these issues but then leave most of the design and detailing to the discretion of the designers. In the installation phase, the alignment of panels is one of the main challenges faced by installers (and/or contractors). Many prefer temporary props to guide, adjust and hold the panels in place whilst the bearing connections are welded. Moreover, heat generated from extensive welding can twist the steel components inducing undesirable local stresses in the panels. Therefore, the installation phase itself is time-consuming, costly and prone to errors. This paper investigates the performance of a novel panel system that is designed to accommodate lateral inter-story drift through a ‘rocking’ motion. In order to gauge the feasibility of the system, six 2m high precast concrete panels within a single-story steel frame structure have been tested under increasing levels of lateral cyclic drift at the University of Canterbury, New Zealand. Three different panel configurations are tested: 1) a panel with return cover and a flat panel at a corner under unidirectional loading, 2) Two adjacent flat panels under unidirectional loading, and 3) Two flat panels at another oblique corner under bidirectional loading. A vertical seismic joint of 25 mm, filled with one-stage joint sealant, is provided between two of the panels. The test results show the ability of the panels with ‘rocking’ connection details to accommodate larger lateral drifts whilst allowing for smaller vertical joints between panels at corners, quick alignment and easy placement of panels without involving extensive welding on site.
A video of the second panel discussion at the 2016 People in Disasters Conference. The panel is made up of keynote speaker Dr Jeanne LeBlanc and guests Dr Penelope Burns and Dr Phil Schroeder.
A pdf copy of the second introductory panel of Guy Frederick's 'The Space Between Words' exhibition. The panel includes a collection of Guy Frederick's memories of the 2010 and 2011 Canterbury earthquakes, as well as discussion on how people experience change.
A pdf copy of the first introductory panel of Guy Frederick's 'The Space Between Words' exhibition. The panel includes a collection of Guy Frederick's memories of the 2010 and 2011 Canterbury earthquakes, as well as discussion on how people experience change.
A video of the panel discussion during the third plenary of the 2016 People in Disasters Conference. The panel is made up of keynote speaker Alexander C. McFarlane and guests Ian Campbell and Duncan Webb.
A video of the panel discussion during the fifth plenary of the 2016 People in Disasters Conference. The panel is made up of keynote speaker Professor Jonathan Davidson, and guests Associate Professor John Vargo and Associate Professor Sarbjit Johal.
A pdf copy of panel 12 of Guy Frederick's 'The Space Between Words' exhibition. The panel includes text from an interview with Wendy Griffiths about her experiences of the 2010 and 2011 Canterbury earthquakes. Above this is an image of Griffiths on a beach.
A photograph of the reception area of the Diabetes Centre on Hagley Avenue. One of the roof panels is missing above the hallway.
The Panel Christmas Special in downtown Auckland atop the Tyler Street Garage, featuring many of the regular panellists from 2011. Due to a Checkpoint special covering the Christchurch earthquake, this was not broadcast.
The aim of this report is to investigate the ductile performance of concrete tilt-up panels reinforced with cold-drawn mesh to improve the current seismic assessment procedure. The commercial impact of the project was also investigated. Engineering Advisory Group (EAG) guidelines state that a crack in a panel under face loading may be sufficient to fracture the mesh. The comments made by EAG regarding the performance of cold-drawn mesh may be interpreted as suggesting that assessment of such panels be conducted with a ductility of 1.0. Observations of tilt-up panel performance following the Christchurch earthquakes suggest that a ductility higher than μ=1.0 is likely to be appropriate for the response of panels to out-of-plane loading. An experimental test frame was designed to subject ten tilt-panel specimens to a cyclic quasi-static loading protocol. Rotation ductility, calculated from the force-displacement response from the test specimens, was found to range between 2.9 and 5.8. Correlation between tensile tests on 663L mesh, and data collected from instrumentation during testing confirmed that the mesh behaves as un-bonded over the pitch length of 150mm. Recommendation: Based on a moment-rotation assessment approach with an un-bonded length equal to the pitch of the mesh, a rotation ductility of μ=2.5 appears to be appropriate for the seismic assessment of panels reinforced with cold-drawn mesh.
A pdf copy of panel 2 of Guy Frederick's 'The Space Between Words' exhibition. The panel includes text from an interview with Louis Harrison-Aydon about his experiences of the 22 February 2011 earthquake. Above this is an image of Harrison-Aydon sitting in a graveyard .
A pdf copy of panel 14 of Guy Frederick's 'The Space Between Words' exhibition. The panel includes text from an interview with Gerard Smythe about his experiences of the 2010 and 2011 Canterbury earthquakes. Above this is an image of Smythe sitting outside the Cathedral of the Blessed Sacrament.
A pdf copy of panel 13 of Guy Frederick's 'The Space Between Words' exhibition. The panel includes text from an interview with Sophie Walton about her experiences of the 2010 and 2011 Canterbury earthquakes. Above this is an image of Walton on the walkway from Taylor's Mistake to Boulder Bay.