WEEK 10 ACTIVITY: ‘DETAILING VOLUME’ (PART TWO)

This is the finalised

looking after the formwork

has been done.

These are the steel

reinforcers.

The retaining wall will

come up 100 meters

high.

Plywood

LBL member

reinforcements

To make in-situ concrete slabs, formwork is the very important part. Firstly, Workers constructed

reinforcements at the area where concrete need to be constructed. Then a box-like formwork is

made by using plywood and LBL members around the reinforcements and concrete will be poured

into the box. When the concrete is stable, the plywood and LBL members will be removed and the

reinforcements will stay inside the concrete. LBL members are similar to ply and can be used for

different veneers. They are cheap, resistant and light.

This pipe keeps water away and

will be put below the ground level.

The main part of the

building is constructed as a

frame structure with 4 main

load-bearing timber

columns. It is a combination

of timber and steel but

timbers are actually the

structural elements. The

roof part is an irregular

shape popping up. The blue

part is the sarking

insulation. Tough glasses

will be attached to the steel

frames to form the facade

on this side of the building.

Temporary Bracings

On the side of the building, the tallest part of the building are constructing by wall cladding. The

timbers are designed with tongue and slot so that pieces of timbers can be connected nice and tight.

Screws are also used to fix the timbers but they are hidden beneath the timbers.

The push props are holding the beam because the member is so heavy and still is not bolted well

yet. These props can be pushed up the satisfied height and supporting members that are not stable

enough. For example, in-situ concrete slab is made in the same way as well. As the formwork is

the work that shaping the slab, props are the things that supporting the formwork’s boxes of the

slabs. For concrete, it takes 28 days to be totally done. The props will be eventually removed when

everything is stable. The wood studs is one of the main elements in timber frame structure. They

protect timber beams from bending and breaking.

Wall Cladding

Wood studs

Push Props

Here is making the formwork for an in-situ wall. There are bracings supporting the formwork. The

black membrane are there to direct water.

Other than these picture. There are also some other important elements such as the cross bracing

used for reinforcing the walls. Cross bracing stop the wall from swaying. There are both ply

bracing and rod bracing. For rod bracing, two rods on diagonal positions having one end fixed by

nuts to the corner are pulled and connected together on the other ends. This method saves both

materials and money. In addition, there are some missing information about bar chairs and so on.

The site manager showed us how the framing

system is constructed. This looks like the Triple

Beam System (Ching, 2008, p.4.15). The members

such as steel beams are the long-spanning

members. The Z shape purlins are the primary

beams and the battens are the secondary beams.

Then insulation and roof will be built on top of

them. He mentioned that Z shape purlins are

chosen due to the long spanning of the buildings.

Instead of C shape purlins, Z shape purlins can lap

on one another thus increase the stiffness of the

structure.

Members

Z shape Purlins

Battens

Bracing

Formwork

Membrane