WEEK 10 JOURNAL ENTRY
ON SITE (TAKE 2)
CONSTRUCTING ENVIRONMENTS
CHAN JOSHUA TIG HAY 638994
OVAL PAVILION VISIT Stage of works Basement of the pavilion is completed, including wall framing, internal walls and mechanical systems such water pipes. Workers are currently focusing on the spectator terrace such as putting in steel bars for reinforced concrete and laying timber partitions between spectator seats.
Materiality Concrete is used for the material for the spectator stands and all primary structural walls due to its strength in compression. Steel is used for beams and steel bars for reinforced concrete walls in order to improve the tensional strength of concrete. (Ching 12.08) Yard lumber is used as structural lumber that has undergone visual inspection and mechanical inspection on the basis of strength and intended use. (Ching 12.13) Structural lumber in this site is present in several columns and beams.
Putting in the steel bars for reinforced concrete for the spectator stands
Timber framework for roof window and ventilation
Black laminated timber finish for the fireplace
Example of laminated timber (Man holding)
Laminated timber is used as the exterior cladding. This material is a type of log that cut by quatersawing which has more even grain patterns and wears more evenly with less raised grain and warping. (Ching 12.11)
CONSTRUCTING ENVIRONMENTS
CHAN JOSHUA TIG HAY 638994
Function The usage of laminated timber as the exterior cladding is for aesthetic purposes. The use of both timber and steel in the post and beam frame was to make sure the frame is able to support the load of the roof and at the same time have a timber finish. The external cladding are put together in pieces using a notch system. This is to enable easy assembly of the individual pieces. (Refer to sketch)
Mix use of steel beam and timber column
Temporary timber framework to hold up retaining walls CONSTRUCTING ENVIRONMENTS
Installation of external cladding pieces (laminated timber) CHAN JOSHUA TIG HAY 638994
Architectural and structural elements The roof feature of the pavilion takes a form of a lookout with large openings which would eventually be windows. This allows the penetration of sunlight into the function room and also acts as a ventilation shaft to allow sufficient air flow within the building. Wood post-and-beam framing is dominant structural framework in the pavilion. Post-and-beam construction utilizes a framework of vertical posts and horizontal beams to carry both floor and roof loads (Ching 5.48). In this case, the horizontal beams are made of steel while the vertical posts are made of structural lumber due to aesthetic values. This post-and-beam framing is therefore regarded as heavy timber construction as the floor and roof structures are supported by non-combustible wood members.
CONSTRUCTING ENVIRONMENTS
Wood post-and-beam framing at the back of the pavilion
Example of steel cross bracing on a timber stud wall
Wooden planks act as the initial cladding of the wall, where plasterboard will be laid later
Steel framing for an opening for a staircase
CHAN JOSHUA TIG HAY 638994
REFERENCES Ching, F.D.K 2008, Building Construction Illustrated, John Wiley & Sons, Inc., New Jersey
CONSTRUCTING ENVIRONMENTS
CHAN JOSHUA TIG HAY 638994