Study Guide 1 for Midterm Building Construction Exam | BC 2014, Study notes of Architecture

Download Study Guide 1 for Midterm Building Construction Exam | BC 2014 and more Study notes Architecture in PDF only on Docsity! ARCH 3045 / BC1214 midterm study guide 07 This guide is intended as a study aid only. It does not represent all the material or the balance between subjects that will be covered on the midterm. The midterm will be multiple choice. Project delivery 1. Why do project delivery methods involving more key players (owner, architect, cm advisor, builder…) move slower than those with fewer key players? They move slower because there are more people which mean more decisions move slower. 2. Which project delivery method seems to have the highest satisfaction scores from the participants? Why Negotiated—because the designer and builder communicate with one another and also the owner to make everyone involved and informed on decisions. Design build entity is second in satisfaction scores 3. What acts as the “bridge” in design-build bridging forms of project delivery? The design is the bridge. 4. Who hires the designer and contractors in the cm-agent form of project delivery? Why is this a good thing for the owner? The agent hires the designer and builder. This is a good thing for the owner because the agent is very knowledgeable and will be able to handle things for the owner. 5. What is the advantage of concurrent project flows over sequential project flows? The advantage of concurrent project flow over sequential is that concurrent allows decisions to overlap. When things have to take place on after another things will move slower than if they can overlap. 6. In the CM advisor form of project delivery, does the cm advisor have a contractual relationship to the builder? Who is the cm advisor’s contract with? The CM advisor does not have contractual relationship with the builder. They only have communication with the owner. 7. In the CM-constructor form of project delivery, why is the cm at risk? The CM constructor is at risk because they are the legal agent for the owner. They also hire general, electrical and mechanical contractors so if their men do bad quality work they are at risk. 8. What are the advantages of the design-build entity form of project delivery to an inexperienced owner The design builder has contracts with both the designer and they hire many parts of the building so for the owner, the design builder handles a lot of stuff for the owner. 9. What services does the design build developer offer an owner that a negotiated form of project delivery doesn’t? Concurrent project flow and also someone is there to make sure that the designer and the builder are working how they should. Design build developers sometimes finance and provide the land the project is to be built on. 10. Why are two designers involved in the design-build bridging form of project delivery? There is a preliminary and final design. One designer is familiar with the project because they have done it many times. Zoning/covenants 11. Why would a land developer place covenants on piece of land being subdivided for the first time? Intent is offering early buyers assurance of quality subsequent development. 12. Why does a municipality place restrictions on private property within its borders through zoning ordinances? Land use controls- setbacks, lot coverage %, height restrictions, etc. 13. What is the right reserved by most government entities to take private property for the public good called? Right of Way 14. What is the name of the process used by the government to take private property for the public good? Eminent Domain 15. Why don’t most zoning ordinances allow a neighborhood of houses to be built right up to the sidewalk and right next to each other without side yards? Because they need to anticipate the building of new roads and they need to make sure they can get to the water and sewage pipes under the road. 16. Why do zoning ordinances restrict the height of buildings? For fire and to make sure that houses are not going to be built next to high rise apartments. 17. What is a FAR? Building area 18. Why would an FAR of 3 allow a 30,000 square foot building on a 10,000 square foot lot? Because it can be three stories tall 19. Why are water meters placed in a R.O.W. by a town? So they can be checked without people complaining of them being on their property. 20. If a set of zoning ordinances don’t meet a developers needs for a project, is there an alternative process they can pursue to get approval from the public and the zoning official? What is it called, how does it work? What are the limitations from the developers perspective? Special Use allows innovation in development not foreseen at the time of the laws implementation. Requires two or three public meetings, requires explicit review by department heads of a town’s fire, garbage, police, etc., can be stopped by public opposition, can take up to 90 to 180 days to pass 21. Building codes 22. What is the advantage of the “unified” building code to a builder operating across state lines? It is in place everywhere except for places that use NFPA. 23. What are the three key steps to using the building code? The taller the building is the longer it has to survive, the bigger the building is an area the longer it has to survive, and the less ambulatory the occupants are the longer it has to survive. 24. For a given occupancy, why wouldn’t we use the construction type listed in the far left column of the height and area chart? Because as you move to the left the more expensive the building gets and because it becomes more non combustible e. identify competent person The owner’s design team is pretty sure the building has to be built as close to the property line as possible. There is a neighboring two story brick building pretty close to the property line as well. 48. What do you suggest for shoring? Why? Either a slurry wall or urban shoring because they don’t use vibrations that would harm the buildings beside it, urban shoring is when you support they building beside yours with a support wall 49. How could you get an idea where the neighbor’s footings are? By asking them for the plans or you could test the soil and see how big the footings should be for the certain type of building 50. If the neighbor’s footings are higher than your planned basement, how do you proceed? Insert a shoring wall to support both the soil and the building. 51. The geotechnical reports on your project show the water table is at 8 feet. You need to build a mechanical basement that is going to be twelve feet below grade. There are no buildings within a few hundred feet, what are three ways you could plan to be able to excavate and build the basement? a. dig a trench through the slope and allow water to drain way naturally b. pump water out of the excavation c. well points Foundations: 52. The geotechnical report came back saying that at 10 feet below grade, there was soil that could support 2,000 psf. The structural engineer on your design-build team says the building will weigh about 8,000 pounds per linear foot of exterior wall. How wide should the footing under the wall be? The footing should be twice as wide as the wall. 53. Given the situation in question 52, can the soil support our building on a spread or pad footing? Spread Footing 54. The pouring of a concrete foundation wall requires about 250 cubic yards of concrete to fill the 12 inch wide, 8 foot high wall forms. If the crew can place about 50 cubic yards a day, how many days will it take to place all the concrete for the wall? About five days 55. If a whole concrete foundation wall cannot be poured all at once, how do we stop the pour so we can continue another day and still have the concrete wall structurally behave like it was all one thing? Pour Joint- let reinforcing pass through and act like one thing What are two methods we could use to keep a concrete foundation wall from being pushed off the concrete footing under lateral soil pressure? 56. a. dowels 57. b. key way 58. If neighboring buildings and soils likely to transmit vibration make driving sheet piling too risky, how can we place the piling without pounding on it? Dig down and then place it or use a vibration machine to put it in. 59. If we have to place corrugated sheet piling around the edges of our 24 foot deep excavation to hold back the earth, and the sheet piling is 26 feet long, how do we keep it from tipping over when we excavate to our full depth? Tie backs, cantilevered 60. Why would the excavating sub not recommend H-piles and lagging as a shoring method on a site where we are trying to stop water from entering the excavation from the side? Because you use wood in H piles and water and the wood would not react well together to stop the water and the wood will be infected with bacteria 61. Once the concrete wall is poured, cured and the forms removed, what can we do to keep the basement dry? You can use damp proofing, trowel grade, or the membrane water proof sheets Bituthene-roll of heavy polyethylene backed with a thick layer of sticky mastic protected by paper Volclay panels- sheets of cardboard filled with bentonite clay- clay expands when wet Spray applied bitumen- spray on membrane 62. describe the lowest cost method The lowest cost method would be damp proofing, however not recommended for basements that will have valuables in them 63. describe the most conservative approach The most conservative approach would be the membrane which is completely water proof. 64. In what soil conditions would a person think about using friction piles? Clay 65. Describe how friction piles work. Steam to cycle the cylinder that pounds on the pile 66. What is a low-vibration method to reaching a suitable bearing strata that is 35 to 90 feet below the surface? Caisson 67. In a design-build meeting in the middle of Richmond, one of the foundation designs being considered is an end-bearing pile. The bearing strata is about 90 feet down. What end bearing pile systems or materials would be sensible here? Why? Precast pile, or steel H pile 68. At the ICTAS jobsite on campus, why is a person sent down to the bottom of the caisson to drill a core sample? Cleans at the bottom, and drills a hole to see if there is a cave at the bottom of the caisson 69. What kinds of safety precautions must be in place before sending a person down to the bottom of a caisson? Shoring 70. Which kind of insulation is most suitable for use on the exterior face of a foundation wall 10-12 feet deep? Why? Damp proofing with drainage boards 71. Why does extruded polystyrene perform better thermally than expanded polystyrene? Extruded polystyrene will perform better thermally than expanded polystyrene because extruded polystyrene is a closed cell foam, meaning that it will not let water in. 72. Which has the higher R-value per inch of material thickness? expanded polystyrene extruded polystyrene polyisocyanurate 73. Which has the higher cost? expanded polystyrene 61 cents a sqaure foot extruded polystyrene 75 cents a sqaure foot polyisocyanurate 78 cents a square foot 74. Which might be considered more environmentally friendly? expanded polystyrene extruded polystyrene polyisocyanurate Safety 75. If the direct cost (medical) of a jobsite accident is $100,000.00 what might the indirect (lost time, lost skill, administrative, legal, insurance) costs be? a. $200,000 b. $600,000 c. $900,000 76. What agency enforces the OSHA regulations in Virginia? a. NIOSH b. ASTM c. VOSH d. ANSI 77. What are the key components of a safe scaffold? a. top rail at 42” b. midrail at 21” c. toeboard d. all of the above e. none of the above 78. Describe two approved methods for getting to an upper work platform on a scaffold? a. Stairs that are incorporated into scaffolding b. Approved ladders to get up to scaffolding