Fichas
Study Set 1
Fichas del conjunto (43)
- 12 basic functions of the foundation of a house?1. Protects the house from soil
2. Transition from irregular surface and levels it - 2What are problem soils?1. Clay or silt - become mushy and fluffy
2. Course sand and rocky - need to be consistent throughout the site to avoid movement - 3What should you do when you excavate for a foundation?1. Make sure there is no organic matter on the ground
2. Make sure the soil is undisturbed (not shoved into) so its not fluffy and instead compact - 4What are two ways to test the soil?1. Penetrometer to check pressure (between 1500lb to 2,500lb
2. Steel T-shaped stake that you push in and see how resistive the soil is - 5How to reconsolidate soil?1. Use a jumping jack compactor
2. For clay or silt, add sand or gravel, dampen, and make it 8 in deep to compact - 6What are batter boards?Temporary frames set beyond the corners of the planned foundation at precise elevations
- 7How high should the foundation extend beyond the ground typically?8 inches
- 8How far should you offset the stakes from the marked corners?10 ft. also mark these stakes location with another stake and a red ribbon around it
- 9What 2 basic kinds of levelers are used?1. Optical levelers
2. Lasers - 10What is the actual name of concrete?Reinforced Cement Concrete (RCC) with steel bars
- 11Why do concrete and steel work well together?Concrete is strong in compression and steel is strong in tension
- 12What does M30/20 concrete mean?Concrete with a compressive strength of 30 n/mm2 and a maximum aggregate size of 20mm
- 13What type of connections does concrete usually have? And steel?Concrete has moment connection and steel has hinged connections
- 14What are the common live loads for residential, office, and industrial buildings?Residential: 200 kg/m2
Office: 250 kg/m2
Industrial: 1000 kg/m2 - 15What is the common wind force a building would need to resist?150 kg/m2
- 16What are shear walls? (3 points)1. Very large columns that help take care of the horizontal forces on buildings like wind and earthquake loads
2. Also support vertical loads
3. Only the longer side of the wall is supportive horizontally - 17What are most steel structure made of and what is it?Mild steel, extremely strong
- 18What are the three advantages of steel and one disadvantage?Advantages: Strong, durable (slow bending) quick to build, many different sizes, light, and can use any cladding material. Does not crack
Disadvantage: Bad in fire, prone to corrosion - 19What are three types of steel building construction?1. Conventional Steel Fabrication
2. Bolted Steel Construction
3. Light Gauge Steel Construction - 20What is Conventional Steel Fabrication?When steel fabricators cut members of steel to the correct lengths, and then weld them together to make the final structure. Can be assembled on the construction site or partially in the factory.
- 21What is Bolted Steel Construction?When steel fabricators produce finished and painted steel components, which are shipped to the site and simply bolted into place. Preferred method of construction because of speed, and sizes of components are determined by the transportation. (Example: Pre-engineered buildings)
- 22What is Light Gauge Steel Construction?Type of construction common for residential buildings similar to light wood construction, steel replacing 2x4s
- 23What are the vertical wooden members within the wall of light wood framing?Studs
- 24What is sheathing?Sheets that are nailed over the studs to connect them securely and form the wall surfaces
- 25What is design and build and what buildings is it used for?When the contractor also designs the building- best for warehouses or industrial buildings. Typically pre-engineered buildings
- 26What is the process of building a pre-engineered buildingSteel structures are made in a factory and shipped to the site after the concrete foundation and floors are done. Lifted with a crane and bolted together at end plates of I-beam
- 27How are pre-engineered steel components made?Steel cut at the desired thickness with a CAD drawing and welded together into I-beams all by an industrial robot. Structures are designed to carry exactly the loads envisioned and no more
- 28What is epoxy floor?A type of synthetic resin floor system that is laid on top of concrete as a form of protection and decoration, used in industrial buildings
- 29What types of floors are used in pre-engineered buildings and what are their characteristics? What is the thickness?1. Conventional concrete systems (open foundations)
2. Need to be tied down well because steel is easy to blow away due to wind
3. 8"-12" thickness - 30What is polyurethane flooring and how does it compare to epoxy floors?1. Highly flexible floor coating
2. Softer option and more scratch resistant - 31What are purlins?1. A steel member that rests on the main structural frame and supports the roofing material
2. In pre-engineered buildings, cold formed Z sections are the member of choice for purlins. - 32What cladding is used for pre-engineered buildings?Metal sheeting
- 33What is cast-in-situ concrete?Cast in its actual location, monolithic or continuous
- 34What is precast concrete? What kind of form is it?1. Concrete that is cast at another location, at a building sit or in a factory and then lifted to its final resting place and fixed securely
2. Made of separate pieces that are bolted or connected together - 35What are the advantages of precast concrete?1. Construction is done on the ground rather than at a height
2. Climate controlled
3. Specialized formwork can be built for repeating components
4. Specialized equipment can be used to make, move and pour the liquid concrete
5. High quality
6. Fast - 36What are the disadvantages of precasting?1. Structural system is not continuous like cast-in-situ and joints are discontinuous
2. Joints need to be controlled and waterproofed
3. Cranes required because it is heavy - 37What components are precasting used for ?Beams, columns, floor slabs, foundations, wall or cladding panels, precast pre-stressed elements, components for infrastructure projects, products for sale
- 38When to use a site or factory for precasting concrete?Travel costs - factory is higher quality so if it is close to the site then it is worth it
- 39Where should a concrete casting yard be?Near a highway, heavy and large elements cannot be taken through narrow roads
- 40How to connect precast concrete elements?1. Bolted together with steel connectors embedded during casting
2. Grouted or concreted together with loops of steel reinforcement left protruding out of the members. Tied together and concrete poured in space between - 41What are the advantages of robotic building construction?1. Precision
2. Hours of working and any conditions work
3. Eliminate human problems of labor
4. Work in spaces not suitable for humans (Safety) - 42What are three examples of Robotic building robots?1. SAM - semi-autonomous mason by Construction Robotics used for brick laying
2. Fastbrick Robotics: bricklaying robot
3.MIT Robot: prints foam structures used to make concrete walls - 43What are two problems robots face during construction?1. Site is disorganized and not a controlled environment
2. Human intelligence and dynamic is preferable in terms of variety of jobs you can perform
Información
- Descripción
- Student The Complete Visual Guide to Building a House - Foundation + Understanding Construction Fichas sobre Study Set 1, creado por Lena P el 25/01/2023.
- Creado por
- Lena P
- Visitas
- 3
- Valoración