Walls Flashcards
Give (5) types of load bearing wall
Precast Concrete wall
Cast-in-place concrete wall
Masonry wall
Pre panelized load bearing metal stud walls
Retaining wall
The structure has beams and slabs but not columns
Load bearing walls
Is adopted for the load-bearing type of wall
Strip foundation
It is a ready-made wall where the wall is cast in the factory and brought to site to install it
Precast Concrete wall
Need to specify the length and height of the wall and then casted and transported to site
Precast concrete wall
This type of wall is preferred where there is limited to space to work and where there is less chance of labor
Precast concrete wall
An important component of the envelope system for precast concrete panels
The connections
The primary purposes of the connection are to (__ __) to the supporting structure and (__ __)
Transfer load
Provide stability
(6) Criteria used to design precast connections
Constructability
Durability
Ductility
Fire resistance
Strength
Volume of change accommodation
Must be maintained to prevent leakage through the precast wall system
The joints
Should consider the structural, thermal, and all other factors that affect the performance and movement of a joint
Joint design
Installation of precast concrete wall (1-10)
Inspection of site
Setting out
Mobilization
Preparation on site
Locate closest grid lines and guide level
Installation shall be done by tower or mobile cranes available on site
Make sure that temporary supports are adequate
Grouting works, bolted or welded joints must comply w applicable requirements in the plan
Field cutting is not permitted without approval of the engineer
Do not use drilled fasteners for attaching accessory to precast unless approved by engr.
Give (6) advantages of precast concrete wall
Aesthetic
Cost effective
Durability
Quality assurance
Safe construction sites
Saves construction time
Give (5) disadvantages of precast concrete wall
High initial investment
Handling difficulties
Transportation issue
Modification
Sensitive connection works
Made with ready-mix concrete placed into removable forms erected on site
Cast-in-place concrete walls