ABPL20033 - CONSTRUCTION ANALYSIS 2016 Assignment 3 - Erika Tantowibowo (755390) - Tutorial 09
CAVE HOUSE
Stage 1 Demolition, Excavation and In-ground Service - Adjusting ground level and type to provide the best support for the house.
- The existing house was demolished, then new soil and gravel were added into the site to accommodate the new house structure.
- The site was then zoned according to the purpose of the house while providing enough access around the house, especially since this Cave House is to be built next to the existing neighborhood properties.
PLAN OF THE EXCAVATION AREA
Stage 2
4. Excavate remaining soil for stage 2 construction, sprayed concrete retaining wall and base footing for the upper part.
45 deg
Basement, Footings, Retention System - After preparing the site, concrete slab was poured into the site for the basement level of the house, along with the installation of buttress footings and other retention systems.
1. Excavating site from the top of the buttress footing while maintaining the batter of 45 degrees.
2. Construct buttress footing, allowing it to set and constructing vertical leg of the buttress.
3. Excavate soil for construction of stage 1 sprayed lower concrete retaining wall.
- Because the retention walls were cured and sprayed in different stages, this results in different colours apparent on the unpolished wall.
Basement Slab
Weep Holes
Masonry Wall
Nylex Strip Drain Pipe
Moisture Barrier
N16 Steel Bars R10 Ligs Steel Bars
N24 Starter Steel Bars
Buttress Footing
STRIP FOOTING DETAILS SECTION (1:5)
Stage 3 Ground Floor Support and Boundary Retention - For safety and practicality reasons, the reinforcing steel rods were capped using rubber product while arranging the concrete blockwork throughout the basement site. - Retaining structure holding up the to-be poured concrete slab for the ground floor structure.
700 Cog to Top Bars
750
Crank Bottom Bars
N24 Steel Reinforcement Bars
Buttress Column N28 Steel Reinforcement Bars
GROUND FLOOR SLAB DETAILS SECTION (1:5)
Steel Caps
Masonry Blockwork filled with grout
DIAGRAM OF THE BASEMENT BLOCKWORK
Stage 4
Pine Seating Plate
Ground Floor Building Frame and Structure
Parallel Flange Channel
Connecting Metal Plate
- Due to its design intent, all the structural beams and columns are arranged in an inward direction so that the facade system of this house could be made continuously covering all levels.
Cleat
LVL Beams
STEEL BEAM DETAILS SECTION (1:5)
Column
20 Nominal Grout Levelling Pad
90x10 Base Plate Aligned in Wall
Embed Chemsets
INTERNAL COLUMN BASE CONNECTION SECTION (1:5) Steel Stair Components
40mm Thick Pavers on Screed
Teckscrew
Door Jamb
STAIRCASE CONNECTION DETAILS SECTION (1:5)
Stage 5
- The floor system supporting the inhabited area such as the bedrooms and bathrooms is the posi-strut joist system which provide greater support and stability for such more permanent activities.
First Storey Floor Frame Structure The floor systems used to support the first level consists of two different types, based on their purposes.
Timber Studs
Floor Beam
Floor Joist
Hanging Steel Strings
POSI-STRUT FLOORING SYSTEM DETAILS SECTION (1:5)
Aluminium Window Frame
Glazed Glass Panels
Floor Beam and Joist
Butynol Membrane on Marine Ply Base
Turpentine Decking on Pine Joists
TIMBER DECK FLOORING SYSTEM DETAILS SECTION (1:5) - The decking flooring system is intended for the open courtyard area in the middle of the house which is more likely to be exposed with water and dirt.
Stage 6 External Walls and External Wall Framing
- Afterwards, timber stud frames and steel beams and columns were installed throughout the first level in order to divide the space and for a better load distribution from the roof structure.
Folded Zinc Capping to Parapet and Perimeter Beyond
Lintel
Metal Decking
R2.5 Batt Insulation
Rendered Fascia
EXTERNAL ROOF STRUCTURE DETAILS SECTION (1:5)
GI Strap for Stud
Pine Nogging Multi Grip
Teckscrew Floor Joist
Framing Bracket Seasoned Timber Pine Seating Plate Floor Beam Facade Wall
STRUCTURAL WALL DETAILS SECTION (1:5)
Stage 7 Roof Structure and External Wall Cladding
- Then, layering of the exterior wall cladding is commenced, where it consists of several layers of wall systems to realize the design idea of pebble cladded structure.
Black Pebble Render
- Afterwards, the roof components started to get installed to provide enough shelter for the built structure at this very stage.
Grey Basecoat Comtex Panels Tyvek Water Proofing Plywood Bracing Timber Stud Framing
fACADE SYSTEM LAYERS DIAGRAM R2.5 Thermal Insulation
Zinc Cladding on Plywood Timber Stud Frame
Facade System
EXTERNAL WALL DETAILS SECTION (1:2)
Stage 8 Roof details Installment - Electrical cords and other services are placed throughout the house in such way that it could later be hidden beneath the cave-like interior ceiling. Batt Insulation
- Water pipes are installed on place, concealed within the structure, aiding for its design intent.
Water Membrane
Spandek Sheet in Gutter Fall Parallel Flange Channel Metal Decking
BOX GUTTER DETAILS SECTION (1:5)
Graded Purlins
Metal Decking Flashing
Flush Shadowline Stopping Bead
Folded Zinc Capping
Zinclume Soaker Tray Timber Stud Frame Batt Insulation
SKYLIGHT DETAILS SECTION (1:5)
Stage 9 Lock Up and Window System
Timber Packing Bolted to Square Hollow Column
Sliding Door Bracket with Two Hangers
Stopping Bead to Plasterboard
- Glass is to be installed in the gap between the external wall cladding and the interior structure, conforming to the design intent of the Cave House.
SECTION THROUGH THE DOOR (1:2)
Painted MDF Semi solid Sliding Door
Strip Flooring Riser and Tread with Pencil Edge Aluminium Channel Between Angles
SLIDING DOOR DETAILS SECTION (1:5)
Stage 10 Fixing and External Services
- The flue of the fireplace goes all the way to the roof, with its extension concealed within the joineries in the first level.
- Coverage of the interior wall with batt insulation, preventing thermal leakage within the house. Medium Density Fibreboard Surrounds Flue
Rebate Hebel Blockwork
Floor Beam and Joists Joinery
50mm Air Gap
Suspended Plasterboard
FIREPLACE CONNECTION DETAILS SECTION (1:5)
Stage 11 Internal Partition Fixing
- Placement of joineries and partitions inside the designated rooms. - Coverage of the interior walls with laminates and paint.
- Installation of the irregular shaped interior ceiling and hanging roof structure within the house, covering the systems and creating a cave-like atmosphere in the space.
FIRST LEVEL CARPET AND JOINERY PLAN (1:200)
Floor Beam and Joist
Flush Painted Villaboard Steel Suspending Strings
Batt Insulation
Facade System Folded Zinc Capping Furring Channel
HANGING ROOF DETAILS SECTION (1:5)
Stage 12 Finishing and Landscape
Glazed Sliding Door Carpet Underlay
Aluminium Sill and Sub-sill Pebbles
- Final refinement of the whole house, including the installation of the complete furniture set, and other landscaping components.
Caulk Between Sub-sill and Drain Concrete Structural Slab
Butynol Membrane
Graded wearing Slab and Spoondrain
BOX GUTTER DETAILS SECTION (1:5)
LANDSCAPING PLAN (1:200)
Section Details Basement Slab
Weep Holes
Masonry Wall
Timber Packing Bolted to Square Hollow Column Nylex Strip Drain Pipe
Aluminium Window Frame
Glazed Glass Panels
Sliding Door Bracket with Two Hangers
Stopping Bead to Plasterboard
Turpentine Decking on Pine Joists
Medium Density Fibreboard Surrounds Flue
Floor Beam and Joists Joinery
Moisture Barrier
SECTION THROUGH THE DOOR (1:2)
Floor Beam and Joist
N16 Steel Bars R10 Ligs Steel Bars
N24 Starter Steel Bars
Buttress Footing
Butynol Membrane on Marine Ply Base
TIMBER DECK FLOORING SYSTEM DETAILS SECTION (1:5) Painted MDF GI Strap for Stud
STRIP FOOTING DETAILS SECTION (1:5) Graded Purlins
Flush Shadowline Stopping Bead
Pine Nogging
Semi solid Sliding Door
Multi Grip
Folded Zinc Capping
Teckscrew Floor Joist
Strip Flooring Riser and Tread with Pencil Edge Framing Bracket Seasoned Timber Pine Seating Plate Metal Decking Flashing
Zinclume Soaker Tray Timber Stud Frame
Floor Beam Facade Wall
Rebate Hebel Blockwork
50mm Air Gap
Suspended Plasterboard
Aluminium Channel Between Angles
FIREPLACE CONNECTION DETAILS SECTION (1:5)
Batt Insulation
SKYLIGHT DETAILS SECTION (1:5)
STRUCTURAL WALL DETAILS SECTION (1:5)
SLIDING DOOR DETAILS SECTION (1:5)
Diagrams and Photographs 1
2
- Adjusting ground level and type to provide the best support for the house.
5
- Because the retention walls were cured and sprayed in different stages, this results in different colours apparent on the unpolished wall.
6
- The floor system supporting the inhabited area such as the bedrooms and bathrooms is the posi-strut joist system which provide greater support and stability for such more permanent activities.
9
- Glass is to be installed in the gap between the external wall cladding and the interior structure, conforming to the design intent of the Cave House.
10
- Coverage of the interior wall with batt insulation, preventing thermal leakage within the house.
3
4
- Retaining structure holding up the to-be poured concrete slab for the ground floor structure.
7
8
- Then, layering of the exterior wall cladding is commenced, where it consists of several layers of wall systems to realize the design idea of pebble cladded structure.
- Electrical cords and other services are placed throughout the house in such way that it could later be hidden beneath the cave-like interior ceiling.
11
12
- Placement of joineries and partitions inside the designated rooms.
Narrative Script
ERIKA PRASETYO TANTOWIBOWO ABPL20033 – ASSIGNMENT 3 TUTOR: ALEXANDRA GOWER – TUTORIAL 9
1. Demolition, Excavation and In-ground Service Firstly, we started off by demolishing the existing building with bulldozer, while protecting the neighboring properties. After the ground was cleared, the depth and inclination of the soil were leveled accordingly, especially preparing for the basement construction. 2. Basement Footings, Retention System - Because this house is to be built right next to the neighboring property, the strip foundation system was chosen to support this house. - The installation of the basement footings to the ground is done by spraying the concrete buttresses securely to the ground by dividing the curing process in different stages. Afterwards, in-ground services were installed and the in-situ concrete slab for the flooring of the basement were poured over the reinforcement. - Then, hollow concrete bricks were arranged over the steel reinforcements and filled with grout to support the concrete slab of the ground floor. 3. Ground Floor Support and Boundary Retention - After completing the masonry work of the basement level, timber and metal supports were placed accordingly to set the steel reinforcements and to set the shape for the in-situ concrete slab of the ground floor. - Because the area of the supports extending from the basement is smaller than the area of the ground floor structure, slabs that does not directly cover the basement were planted unto the ground using concrete reinforcements. 4. Ground Floor Building Frame and Structure - Then, timber frameworks were installed by screwing down the metal cleats into the frames and eventually to the ground throughout the house in order to separate the rooms and support the steel beams and columns. This combination system is used for better load distribution of the structural system in this building. - Since the ground floor of this house is designed to be predominantly covered by curtain wall, steel columns for the window frames were installed as the envelope system of this building, while providing vertical structural support for the next level. 5. First Storey Floor Frame Structure - After the completion of the ground level timber work, a steel stringer staircase with timber steps was arranged for temporary access to the upper storey. - In this stage, it can be seen how the first floor of this house uses two types of flooring systems for the bedroom area and the courtyard. The posi-strut system provides better support for holding up the occupied areas while the latter is more suitable as the outdoor part of this house requires thicker water proofing system than the indoor areas. - LVL beams were used to provide the highest span of support. However, all supporting components are placed and installed inside the house, as this house was designed to have a continuous façade system which runs from the first to the second level. 6. External Walls and External Wall Framing - Then, the timber framing system of the first storey is installed to define the areas inside the house. - In some parts of this building, the arrangement of the exterior timber framing was intentionally made to complement the framing of the hanging roof system which has a fairly irregular shape. - Eventually, the timber and steel beam for the roof was installed to give temporary shelter for the existing system. 7. Roof Structure Next is the installation of steel roof beams, graded timber purlins and rafters in order to preparing for the roof structure installation. Then, vapour barrier, batt insulation, and reflective foils in the wall insulation system for thermal and water proofing were placed accordingly to the structure. While doing so, the external walls were cladded with timber stud frame according to the shape and height of the hanging roof structure. Then, comtex panels are screw fixed unto the timber frame through the plywood bracing before eventually covering the adhesive panel with smooth black colored pebbles. 8. Roof Cover and External Wall Cladding In this stage, roof cover and box gutters are installed and connected to the down pipes. Due to its relatively flat shape, this roof design requires larger rainwater collecting system. Hence, a larger box gutter is used in this house and it is installed upon a steady timber beams and thicker water proofing system. This gutter is connected to the downpipe that is hidden beneath the façade design. Electrical appliances is then installed and concealed within the timber trusses and beams holding up the structure before covering them with timber panels and plasterboards. The skylight glass has been secured by this stage. To accommodate the complicated design, the system used to support the skylight requires impenetrable water proofing quality to prevent leakage from the roof. 9. Lock Up and Window System Door and window frames are then placed on the openings throughout the building. The shape and size of the openings inside this house conforms to the angle and layout of the cave-like design. A number of these frames are covered by the extending plasterboard ceilings, while the exterior components use frameless aluminum sill for the aesthetic purposes of the house. 10. Fixing and Services for Ceiling Structures - In this stage, all of the electrical and both built-in and ‘rough-in’ services such as the air conditioners, electricity and fireplace system are set up, complimented with fuels and seals throughout the openings to prevent thermal loss. - The fireplace in this house was made of hebel blocks and finished with masonry work of similar color scheme with the entire house. As the gas pipe of the system goes up all the way through the first floor, it is then concealed within the joinery unit. 11. Internal Partitions Fixing - Due to its complicated interior ceiling design, strings were used to mark the inclination and length of the designated plasterboard placement process. - In this stage, joineries are finished while laminates and other finishing materials such as wet paints are started to be applied throughout the house. - After all wall treatments are in place, carpets, timber flooring and tiles are arranged accordingly. 12. Finishing and Landscape - The last stage of this construction process is the Installation of smaller details throughout the house such as the hinges, handles and other smaller services as well as the landscaping arrangements.