It is for construction estimating class Note no hand writing

50. Explain the following (3 pts). a Construction Management b. Design Build c. Design Bid Build 51. Explain an assembly estimate (2 pts)? 52. What is the main problem with project comparison estimates (2 pts]? 53. What is meant by \"Quantity Takeoff\" (2 pts)? 54. What is \"retainage\" and how does it protect the owner (2 pts 55. Gve an example of a specification (2 pts)? 56. What is a site visit critical to the estimate, give an example (2 pts)?

Solution

Ans 50

(a) Construction Management: Construction management is organizing , scheduling ,mobilizing the equipment, materials and person in the performance of construction project from the beginning to its end.

The construction mangement has been done in the following construction

(b) Design Build- Design build is a project delivery system used in construction industry in which one entity-one design build team work undera single contract. It provides design and construction services. It is also called single-source responsibilty. Around the world and across the country design build succcessfully deliver buildings, schools, stadiums, water infrastructures etc. It is the improvement method of traditional apporach of construction projects. Design build answers the client\'s wishes for a single point of responsbility in approach to attempts to reduce risks and overall costs. it gives

(c) Design bid build- Design bid build(D-B-B) is the traditional mehod for project delivery. It provides highest risk of profile to owner. It is the seperate entity for each design and construction part of work. There is no conncetion between the general contractor and architect. due to this it eliminates the opportunity of constructibility input.Each phase implemented separately and can not start work until the previous has been completed. It increase the risk to owner. Design team do es not have access to construction project which cause delay in project.