Above is an early plan of my detail.
Here's how it turned out..
Tuesday, June 3, 2008
Tuesday, May 27, 2008
DETAIL!
For the 1:1 detail, i think i have researched enough of hollowcore floor plank technology to feel comfortable with modelling it at life size. there are several options.
This shows a pre-cast concrete beam with reinforced concrete column. The beam is shaped in a way to allow appropriate bearing for the floor planks.
Alternatively, i can design the building with steel intersecting with the pcp planks instead. Which is probably more suitable to the project requirements. will need to find out minimum depth of the steel beam though as no dimensions are specified in the hollow core detailing manual
This shows a pre-cast concrete beam with reinforced concrete column. The beam is shaped in a way to allow appropriate bearing for the floor planks.
Alternatively, i can design the building with steel intersecting with the pcp planks instead. Which is probably more suitable to the project requirements. will need to find out minimum depth of the steel beam though as no dimensions are specified in the hollow core detailing manual
Denny Lacelles renovation
I was directed to visit the Wycombe construction group office of this project right at school on the fourth level by Peter Healy from Hollowcore as an example for the technology. These were the few photos I could take from the side of site as I was not allowed on.
This addition to the building is made entirely of pre-cast members, including hollowcore floor in conjunction with pc beams and columnns.
Sprinkler system is pre-installed. The planks in use here are 300 deep, four core type.
the construction office was very helpful in letting me access documentation drawings that has been really helpful for research and member specifications. I might be modelling my own assignment on the span length and floor planks in this project. I also have been looking at connection details, made up by the engineer. Unfortunately, i can't post them here as they are confidential.
This addition to the building is made entirely of pre-cast members, including hollowcore floor in conjunction with pc beams and columnns.
Sprinkler system is pre-installed. The planks in use here are 300 deep, four core type.
the construction office was very helpful in letting me access documentation drawings that has been really helpful for research and member specifications. I might be modelling my own assignment on the span length and floor planks in this project. I also have been looking at connection details, made up by the engineer. Unfortunately, i can't post them here as they are confidential.
Friday, May 23, 2008
Composite construction in office building
Another building site, this time, compiste construction used in multi-level office complex in North Richmond
Address: Elizabeth St Richmond
A view of the pre-cast concrete shaft that forms a part fo the structure. The ferrules have been covered up, and the panels have been sealed at the joints.
Detail view of end of suspended composite floor. It is trimmed with a pre-cast beam butting directly up against the pre-cast concrete wall. The permanent steel form-work is apparent here. As well as how it relates to future services such as drainage (pipe allowance) and fire sprinklers (red pipe).
Architect: Unknown
Builder: Hickory
Overview of project. The vertical lines of columns can be seen running all the way up the building. For each floor there is a balcony level.
Safety railing is still in place. The photo is a bit dark, but this building uses a steel tray type platform for its floors. (Eg. 'Bondek).
A closer look at the same facade . The floors butt right up against the pre-cast concrete panel shaft on the right, suggesting it is load bearing.
A better view of the columns and the beam the concrete beam they connect to that runs along the whole building. This photo also clearly shows the underside of the floors, made of Bondek.
All this would be covered by the interior fit out, including suspended ceiling.
A view of the pre-cast concrete shaft that forms a part fo the structure. The ferrules have been covered up, and the panels have been sealed at the joints.Detail view of end of suspended composite floor. It is trimmed with a pre-cast beam butting directly up against the pre-cast concrete wall. The permanent steel form-work is apparent here. As well as how it relates to future services such as drainage (pipe allowance) and fire sprinklers (red pipe).
Tuesday, May 20, 2008
Steel construction
I am using steel construction to intersect with pcp flooring in my office building.
Some things:
Engineered details of flexible steel connections. There are many configurations. I've found Francis Ching's Illustrated construction book is also quite comprehensive in connection options, Especially now when i am trying to resolve the connection between beam and column.
This is an example of a shop drawing for a portal frame that i found on the OneSteel website.
Above, photos i have received from Wycombe of existing part of the Denny Lacelles building. Important references are the structrual steel thats been added.
Some things:
Engineered details of flexible steel connections. There are many configurations. I've found Francis Ching's Illustrated construction book is also quite comprehensive in connection options, Especially now when i am trying to resolve the connection between beam and column.
This is an example of a shop drawing for a portal frame that i found on the OneSteel website.
Above, photos i have received from Wycombe of existing part of the Denny Lacelles building. Important references are the structrual steel thats been added.
Thursday, May 15, 2008
Pre-Cast Concrete Construction Site
This is an office development by an unknown architect located on La Trobe Terrace, Geelong. I'll get back on the exact address.
It is a load-bearing pre-cast concrete structure. This structure is used for support along the bondary walls for a curtain-wall facade of glass that will cover the front, street-facing facades. This is what I gathered from the artist's impression.
Overview of the site from across the road:
View of the site from the inside, including internal pcp walls. They are being propped up, with the props resting on the strip footings on the ground. Steel bars are protuding out of the strip footings in preperation for future connections. In the meantime, they are capped with yellow plastic for safety.
You can start seeing servicing already coming up from the ground, especially plumbing. Infill concrete slab beyond.
Side pcp wall. They have not been joined yet and are still being propped up. Each panel is about 1400 wide.
The other side of the same stretch of wall. Shows the proppping in particular, which is directly bolted to walls and evenly distributed at the same height.
The base of a wall panel on the boundary of the site. There is a space 50 mm space, allowing for space to work and finishing floor to be poured later. Importantly, you can see the shim on which the wall rests in order to make accurate placement of the panel easier. It will remain under the panel and have conrete poured over later.
A close up of the ferrule on the pcp that the crane would have hooked onto during installation. This will be covered up flush with the wall surface later.
This view shows the base of the wall. IN this particular section of the building, it is dug down quite deep into the natural ground. Youc an also see where the strip footings end. It is hard to understand why then would not run underneath the wall themselves and it is not clear what the walls are acutally standing on currently!
PCP with doorway is possible. Note here a control join occurs at the opening as it is a place of weakness, esp during movment.
It is a load-bearing pre-cast concrete structure. This structure is used for support along the bondary walls for a curtain-wall facade of glass that will cover the front, street-facing facades. This is what I gathered from the artist's impression.
Overview of the site from across the road:
View of the site from the inside, including internal pcp walls. They are being propped up, with the props resting on the strip footings on the ground. Steel bars are protuding out of the strip footings in preperation for future connections. In the meantime, they are capped with yellow plastic for safety.
You can start seeing servicing already coming up from the ground, especially plumbing. Infill concrete slab beyond.
Side pcp wall. They have not been joined yet and are still being propped up. Each panel is about 1400 wide.
The other side of the same stretch of wall. Shows the proppping in particular, which is directly bolted to walls and evenly distributed at the same height.
The base of a wall panel on the boundary of the site. There is a space 50 mm space, allowing for space to work and finishing floor to be poured later. Importantly, you can see the shim on which the wall rests in order to make accurate placement of the panel easier. It will remain under the panel and have conrete poured over later.
A close up of the ferrule on the pcp that the crane would have hooked onto during installation. This will be covered up flush with the wall surface later.
This view shows the base of the wall. IN this particular section of the building, it is dug down quite deep into the natural ground. Youc an also see where the strip footings end. It is hard to understand why then would not run underneath the wall themselves and it is not clear what the walls are acutally standing on currently!
PCP with doorway is possible. Note here a control join occurs at the opening as it is a place of weakness, esp during movment.
Saturday, May 10, 2008
Timber portal frames
Just thinking about construction types I can use for the major assignment. This article is an example of a church built with this method. I think it achieves a very beautiful effect when the portals are exposed. The use of timber is also encouragable for its environmental benefits.
However, it seems timber portal frames are not so widespread currently. They are an engineered product and each building is one-off as opposed to being quickly commercially designed and produced as is the case with steel portal frames. AS a result, infomration is scarce in comparison.
Go to http://www.timber.org.au/NTEP/resources/08s.pdf for the pdf article.
This building uses LVL portals which can be quite heavy and deep but the effects of the layering is attractive and the strenght of LVL combined overcomes the smaller inevitable defects of each layer.
However, it seems timber portal frames are not so widespread currently. They are an engineered product and each building is one-off as opposed to being quickly commercially designed and produced as is the case with steel portal frames. AS a result, infomration is scarce in comparison.
Go to http://www.timber.org.au/NTEP/resources/08s.pdf for the pdf article.
This building uses LVL portals which can be quite heavy and deep but the effects of the layering is attractive and the strenght of LVL combined overcomes the smaller inevitable defects of each layer.
Subscribe to:
Posts (Atom)
