Week 03 activity

1_EASTERN PRECINT STUDENT CENTRE (LINK BETWEEN BUILDINGS)

Potential construction constraints_ ď Ź

Accessibility: The access to this building - to send all the materials into this building and constuct the building, people need to consider ways to overcome the staircases problems such as putting a wide plank on the steps.

Links to other buildings_ Steel beam and glass as the main links to the DougMcDonell Building.

Also some small part of wooden beams. It is quite a big space.

Construction type_ - Steel frame structure & canopy

Structural System(s)_ - load-bearing steel columns - curtain wall (glass) - wooden beams - two glass doors - separate the indoor and outdoor temperatures

Materials_ Steel, timber, concrete, glass Other relevant comments_ The large area of glass enables the lights to go into the building 2_MSLE BUILDING (LINK BETWEEN BUILDINGS)

Potential construction constraints_

- Accessibility: The roads outside are narrow which makes it hard to send materials - Limited space for workers to construct

Links to other buildings_ - Zinc - copper - glass - fixed-end structure

Construction type_

- steel frame structure (entrance) - cantilever structure (2nd floor bridge) - compression masonry construction (MSLE) - prefabricated construction Structural System(s)_ - load-bearing steel columns - cantilever beams - curtain wall - rubber (floor and baseboard)

Materials_ Steel, Zinc, Copper, concrete, rubber, glass Other relevant comments_ The cantilever bridge with the glass curtain walls allows people to have a good view from inside.

3_QUEENS COLLEGE EXTENTION

Potential construction constraints_ - Accessibility: The road is very narrow between the Queens College and playground. Also, there are many vegetations that constrain the accessibility of materials from outside of university to ths construction site Links to other buildings_ - Vegetation - Concrete Construction type_

- precast concrete, compression construction - truss Structural System(s)_ - beam of truss - curtain wall (glass and steel) - load-bearing wall Materials_ - brick - concrete - timber - steel - glass

Other relevant comments_

4_ORMOND THEOLOGY CENTRE RECEPTION

Potential construction constraints How it is construct to attach to the library Links to other buildings_ Link to the Dalton McCaughey Library Construction type_ - in situ concrete construction - mass structure (glass bricks)

- steel frame construction

Structural System(s)_ - curtain wall (glass) - load-bearing wall (glass bricks) - column Materials_ - glass - timber - concrete - bluestone - copper - aluminium Other relevant comments_ The glass bricks structure allows sunlight to go in the building. It makes the building very hot indoor in summer.

CONSTRUCTING ENVIRONMENTS

ENVS10003

ACTIVITY_CONSTRUCTION WORKSHOP 1_DESCRIPTION (length, width, depth, composition and structural properties) AND PHOTO OF ALL MATERIALS PROVIDED 1. One 1200 X 3.2 X 90 mm Ply It is really thin and flexible but it also has a high quality of standing compression on one point. It has a flat surface without weak points.

2. Three 1200 X 35 X 35 mm Pines They are thick but it has a low quality of standing compression on one point. There are nodes on the pines which are the weakness needed to be avoided.

node

pine

2_PHOTO AND DESCRIPTION OF ALL TOOLS USED

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Drill - used to insert the screws in to connect separate pieces of materials

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Tape - measure the length to make the cutting process accurate

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Bench Hook - used to put underneath when cutting pieces of materials

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Screws - used to be inserted into pieces of materials

ply

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Saw - used to cut materials

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Hammer - used to knock the screw into materials

3_SKETCH OF YOUR DESIGN AND PHOTOS OF ALL FOUR DESIGNS

PROCESS

We cut the pines and ply into same length. Then we used screws to bind the three pines together and underneath the pines we put the ply on. We cut the rest of the ply into half and put them on the two ends of the pines. We put screws at the ends and middle of the structure.

4_PHOTO AND DESCRIPTION OF STRUCTURAL PERFORMANCE AND FAILURE MECHANISM OF ALL FOUR DESIGNS Our Group:

When we planned to do this structure, we considered that ply has a higher ability standing compression so we put it at the bottom of the structure. To make the structure stronger, we binded the three pines together which we considered was useful to share the pressure. We put ply at the ends of the pine combination to make the connection of pines stronger.

When the one-spot pressure was put on the midpoint of the structure, the structure broke as the pictures show.

When we did the constructing, we neglected that the pressure is a one-spot pressure. Therefore, no matter how many pines we attached to the sides of the middle pine, there would not be any pressure sharing occur. Also, we only considered ply’s high quality of standing pressure but forgot that the longer the ply was, the more flexible it would be. Therefore, when the pressure increased, the ply bended a lot thus detached from the pines. In addition, due to the grains of the pines, the inserted screws actually made the structure weaker which made the pines cracked along the grains.

Other Group 1:

Differ from our design, this group cut one of the pines into three pieces and put them perpendicularly underneath the ends and middle of the two pines. From the picture, it seems that the midpoint pressure did not actually stress down on where they put the middle perpendicular pine. That is why the structure broke right beside the middle piece of pine.

Other Group 2:

This group actually had a quite strong structure.They put one pine on the other one and cut the plys into pieces to decrease the disadvange of ply’s bending characteristics and attached them to the sides of the pines. Due to this design, the structure broke slowly, the bottom pine broke first, following by the broken of the top pine. The only weakness was that pieces of ply at the middle of the structure was cut in half.

- steel poles - start from the foundation - Concrete wall: half way

- finished compression masonry construction

- areas that have not been constructed yet