sa Explain the following 3p b Design Build c Design Bid Buil

sa Explain the following 3p 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 ptsj? 53. What is meant by \"Quantity Takeof (2 pts)? S4. What is \"retainage\" and how does it protect the owner (2 pts)P 55. Give an example of a specification (2 pts)? 56. What is a site visit critical to the estimate,give an example (2 pts)

Solution

Answer 50-

Construction management- Construction management is a process of planning, estimation, scheduling, tendering, contracts, equipments etc.

Design build- Design–build is a project delivery system used in the construction industry. It is a method to deliver a project in which the design and construction services are contracted by a single entity known as the design–builder or design–build contractor.

Design bid built-  Design bid build is is a project delivery method in which the agency or owner contracts with separate entities for the design and construction of a project.

Answer 51-

Assembly estimate is a simple, accurate way to create takeoffs. It also streamlines the management of material costs, quotes, and ordering because each assembly includes all the necessary parts and labor to complete a unit of work.

Answer 52-

Cost Committed and Cost Exposure is main problem in project comparison estimation because Estimated cost to completion in each category in divided into firm commitments and estimated additional cost or exposure. Commitments may represent material orders or subcontracts for which firm dollar amounts have been committed.

Answer 53-

Quantity take-offs (QTO) is an in-depth construction estimation of materials and labor required to complete a construction project. An expert develops these estimations throughout the pre-construction section. These measurements are a usual format of a bid on the scope of construction.

Answer 54-

Retainage is a portion of the agreed upon contract price deliberately withheld until the work is substantially complete to assure that contractor or subcontractor will satisfy its obligations and complete a construction project.

The retainage concept has two general purposes: (1) To provide an incentive to the contractor or subcontractor to complete the project; and (2) To give the owner some protection against problems like liens, contractual defaults, delays, and more.

Answer 55-

boring in foundation is a example of specification.

Answer 56-

Site topography is critical to project planning, design and layout.estimation is different for different site.

for example construction in ground surface is easy than construction in hills area.