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CVE 4070

CVE 4070. ENG-1000 Intro to Engineering CVE-1000 Intro to Civil Engineering Construction Overview Prof. Ralph V. Locurcio, PE. Class Objectives…. Understand project delivery process Understand the phases of engineering Describe the construction profession Construction contracts & issues

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CVE 4070

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  1. CVE 4070 ENG-1000 Intro to Engineering CVE-1000 Intro to Civil Engineering Construction Overview Prof. Ralph V. Locurcio, PE

  2. Class Objectives… • Understand project delivery process • Understand the phases of engineering • Describe the construction profession • Construction contracts & issues • Tools of the trade – skills you need • Typical jobs in construction • Leadership & management

  3. Construction Intro… • The 4 phases of engineering • Planning & Programming • Design & Engineering • Construction (Manufacturing) • Maintenance

  4. Programming Process Design Process Construction Process Project Delivery Process…

  5. About Construction… • It’s an extremely complex process… • Many players, many variables, many unknowns • Design is never perfect • Unlike manufacturing process… • Teams are variable; not trained on this project • Production site is crude & unprepared • Very large projects – rarely build more than one • Very large risks – owner’s first and last experience • Large penalties for error or contract failure • Money drives all aspects of the process • One chance to get it right • CM goal is to deliver a perfect product

  6. Construction History • The oldest profession? • The master builders… architects? • Growth of Project Management • Growth of Quality Management • Construction Management Emerges

  7. Hammurabi’s Code – 1780 B.C. 228. If a builder build a house for some one and complete it, he shall give him a fee of two shekels in money for each sar of surface. 229. If a builder build a house for some one, and does not construct it properly, and the house which he built fall in and kill its owner, then that builder shall be put to death. 230. If it kill the son of the owner the son of that builder shall be put to death. 231. If it kill a slave of the owner, then he shall pay slave for slave to the owner of the house. 232. If it ruin goods, he shall make compensation for all that has been ruined, and inasmuch as he did not construct properly this house which he built and it fell, he shall re-erect the house from his own means. 233. If a builder build a house for some one, even though he has not yet completed it; if then the walls seem toppling, the builder must make the walls solid from his own means.

  8. Contracting – 487B.C. • Contract for Rent & Repair of a House, One Year Term, Thirty-fifth year of Darius, 487 B.C. This contract is most interesting. Such business methods are not, therefore, altogether modern. • In addition to the rent of the house of Shamash-iddin, son of Rimut, fifteen shekels of money in cash (shall go) to Iskhuya, son of Shaqa-Bel, son of the priest of Agish, for this year. • Because of the payment he shall repair the weakness (of the house), he shall close up the crack of the wall. He shall pay a part of the money at the beginning, a part of the money at the completion. He shall pay it on the day of Bel, the day of wailing and weeping. • In case the house is unfinished by Iskhuya after the first day of Tebet, Shamash-iddin shall receive four shekels of money in cash into his possession at the hands of Iskhuya. • The names of three witnesses and a scribe then follow… • Dated at Shibtu, the twenty-first of Kislimu, the thirty-fifth year of Darius.

  9. Public Construction & Economy!

  10. Construction vs. Engineering • ConstructionEngineering • Mostly outdoor 1. Mostly Indoor • Teamwork 2. Individual work • Business skills 3. Technical skills • Multi-skills 4. Specialized skills • Variable locations 5. Fixed location • Leadership 6. Self-discipline • Total project 7. One component • Large budget 8. Small budget • Great risk 9. Small risk • End product 10. Partial product

  11. Construction skills… • Skills you need in construction • Fundamentals: science, math, business • Contracting: risk, legal issues, changes • Project Controls: schedule, cost, estimates • Construction Operations: responsibility, authority, planning, documents, productivity, quality, documentation, safety, closeout • Leadership: teams, organization, motivation, success, ethics

  12. Planning… Pyramid Construction

  13. Construction Schedule…

  14. Constructing concrete columns

  15. Concrete wall section

  16. Concrete foundation/pier

  17. What’s involved… Construction: read the plans hire the workers organize the site schedule the work form the columns install the rebars purchase the materials satisfy the owner Engineering: design the columns size the rebars draw the plans specify the materials write the contract select the site inspect the work advise the owner

  18. Concrete pump in action

  19. Construction site management

  20. Traffic & environmental impacts

  21. Construction Process • Study the contract • Study the site, labor, materials • Plan the work • What teams are needed • How will they interact in time • Integrate materials & logistics • Diagram the flow of work • Check the timing from start to finish

  22. Class example • Plan the construction of a dog house • What needs to be considered ???

  23. Engineering phase…

  24. Construction phase Cost Timing Quality Safety Labor Weather Siting Transportation Tape measure Hammer Square Circular saw Table saw (optional) Paintbrush Dust mask Goggles Hearing Protection 4'x8' sheet of 5/8" exterior siding 1— 8' 2x4 (to be cut into 2x2's) 1— 10' 2x4, rated for outdoor use Nails—16d for base, 8d for house, and short roofing nails if using shingles Shingles (optional) Finishing material (paint or nontoxic wood preservative) Tools Construction Operations Materials

  25. The customer’s needs!

  26. Time Phased Budget Control

  27. Last Month Payment This Month Request

  28. Payment calculations…pipe Payment Method = Linear Feet of Pipe… plan, delivered, placed? Pipe cost = $150/lf = $47,250 or $60,000 or $48,750???

  29. Hidden Costs

  30. Change order cost estimate… • Study the plans • Organize your estimate • Determine critical dimensions • Determine critical materials & methods • Determine take off quantities • Calculate the cost of each quantity • Add overhead & profit • Negotiate with the contractor

  31. Determine dimensions…

  32. Foundation excavation-1… (7’2”+6’4”+7’2”+7’16” = 27’24”) 29’-6’=23’ (18’10+16”+16 = 18’42”) 3’ 22’ 22’ 19’ 3’ 3’ 3’ 3’ 3’ 4’ (4’ = 7’-18”-18”

  33. Foundation-2… Excav 3’ 3’ Conc. 1.25’ 3’

  34. Foundation excavation-3… • Add the pieces… 3’x22’ 3’x22’ 3’x23’ 3’x19’ 3’x4’ 3’x3’ 3’x3’ Total = 3’ x 96’=288 SF x 3’ depth = 864 CF = 32 CY

  35. Concrete volume… • Add the pieces… 3’x22’ 3’x22’ 3’x23’ 3’x19’ 3’x4’ 3’x3’ 3’x3’ Total = 3’ x 96’=288 SF x 1.25’ depth = 360 CF

  36. Masonry walls… W8 12”CMU 8” CMU Insul Brick W1 W9 W7 W4 W2 W3/W6 W5

  37. Floor slab… FS-1 FS-1=21’X19’=399 SF FS-2 FS-2=7’X19’=133SF

  38. Cost Estimate of Change…

  39. Project Organization…

  40. Project Organization-design

  41. Project Organization-const opns

  42. Jobs in construction • Contractor – owns a company • Contract specialist – interprets contract • Estimator – prepares bid • Project Manager – runs complete job • Project Engineer – approves/orders matl. • Site Engineer – plans site layout • Superintendent – manages crews • Quality control – inspects work

  43. Construction vs. Engineering • ConstructionEngineering • Mostly outdoor 1. Mostly Indoor • Teamwork 2. Individual work • Business skills 3. Technical skills • Multi-skills 4. Specialized skills • Variable locations 5. Fixed location • Leadership 6. Self-discipline • Total project 7. One component • Large budget 8. Small budget • Great risk 9. Small risk • End product 10. Partial product

  44. The goal... happy customers!

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