Construction Evaluation (CE) Flashcards
Design-Bid-Build
“Typical” delivery method. Architect assembles a set of drawings, Contractors bid on it using estimates from various subcontractors, the lowest bid typically is awarded the project.
Liability Crisis of the 1980’s
Explosion of lawsuits caused architects to restructure their contracts to mitigate risk and put more liability on the contractor. Large complex projects brought on more disputes between architect and contractor so owners gravitated toward the single-entity design-build model.
Fast-Track
Multiple design packages that are bid as design is completed (called bid packages). Construction Managers are typically brought on to help control this complex project.
Credit Crunch of the late 1970’s
High cost of borrowed money accelerated design-bid-build and created the Fast-Track delivery method to get projects done quickly and at a low cost to the owner.
Integrated Project Delivery (IPD)
Focuses on increased collaboration with all parties along with a more intense presence of BIM.
CM-Advisor
Manages constructibility and cost to the owner but is not the builder.
Owner contracts with Architect, Contractor, and Construction Manager who acts as an advisor (and is not typically contracted directly with arch & contractor).
CM-Agent
Early construction consulting and may help assemble the construction trades but is not the builder.
Fee is typically fixed and assumes no risk of the actual construction cost. Owner assumes savings and overruns.
Owner hires a Construction Manager who contracts directly with the Architect and Contractor but reports to and acts as an agent to the Owner.
CM-Constructor
Begins as a constructibility and cost advisor and is eventually the builder.
Fee is typically a GMP which is usually based off an early set of design documents (DD). CMC is at risk for overruns and benefits from savings.
Similar to the DBB method but the contractor is also the Construction Manager.
Design-Build (Standard)
Typically a contractor that subcontracts with an architect directly. This means the owner has no agent or design advisor for building performance and quality.
Typically fixed fee for both construction and design services.
The owner contracts with a single architect/contractor entity.
Design-Build (Bridging)
Consists of a design architect who establishes design concept and performance parameters and a production architect who generates construction documents and builds the specs. Drawings are passed on to the production architect but the design architect stays on as an advisor to the owner through the remainder of design and construction.
Owner contracts with a design architect and also hires a single architect/contractor entity to carry out construction.
Delivery method if COST is the biggest driver
Design-Bid-Build
Delivery method if QUALITY is the biggest driver
DBB, Negotiated Select Team
Delivery method if SCOPE is the biggest driver
DBB, Cost Plus Fixed Fee
Delivery methods if RISK is the biggest driver
CM-Advisor
CM-Agent
Design Build (standard & bridging)
Delivery method if TIME is the biggest driver
CM-Constructor
In what delivery methods is construction cost determined after design?
Design-Bid-Build
Negotiated Select Team
Design Build (Bridging)
CM-Constructor
In what delivery methods is construction cost determined before design?
Design Build (Standard)
In what delivery methods is construction cost determined at completion?
Cost Plus Fixed Fee
CM-Agent
Negotiated Select Team
A variation of DBB in which the contractor is selected early. Price is determined after design is complete and subcontractors are selected. Great for complex projects.
Cost Plus Fixed Fee
Contractor is awarded the cost of labor and materials plus a fixed fee that does not vary depending on construction cost. There may be incentives baked into the contract to complete the project early or under budget. (Good for contractor - benefits from being under budget and early but does not suffer if project is extended or over budget).
Struggles with forming an IPD Team
It is difficult to find a fit IPL (IP Leader). Mistrust between architects and contractors leads each party to disbelieve thier trade will be considered equal in the process if one were to lead.
Characteristics of an ideal IPL
- Good listener
- Proactive
- Address issues head on
- Manage from the middle (highly engaged)
- Prefer dialogue over debate
- ## Comprehensive responder
Reasons for choosing CMc
Agressive schedule, budget, and unknown scope.
A133
Base agreement between owner and CMc
CMc services during Pre-construction Phase (per A133)
- Evaluate program, schedule, and budget
- Perform consultation on construction, materials, and labor
- Prepare and update schedule
- Provide recs for phased construction
- Provide preliminary cost estimates
- Develope subcontractor and supplier interest
GMP
Guaranteed Maximum Price. includes estimate of the cost of the work, contingencies, and CM fee.
CMc services during Construction (per A133)
- Obtain bids from subcontractors
- Review and accept bids with owner and architect
- Administer the work
- Schedule and conduct progress meetings
- Maintain schedules
- Track the cost against the GMP
How is a CMc selected?
Architect and owner review qualifications and conduct an interview. Architect involvement in selection is crucial for team chemistry.
CMc Contract Coordination
Making sure that roles and responsibilities are clearly laid out and coordinated between owner-architect and owner-construction-manager.
CMc constructability expertise
- Local building conventions
- Building systems
- Site selection
- Scope limitations (staying within budget)
Outline Specifications
Early brainstorming of specifications needed during the SD level.
Performance Specifications
Outlines what performance criteria must be met instead of specifying specific products to be used. Project roadmap
Narrative Specifications
Typically used early on for pricing. Narratives outlining the gist of scope without having to detail it in the drawings.
CMc & LEED
CMc to incorporate the cost of LEED measures as early on as possible - both LEED design and LEED construction.
B103
Designed for large scale projects
B104
Small projects with limited scope
B101
SFAOA most versatile contract
B101, Article I
Owner’s obligations. Establish project descriptions, anticipated milestone dates, procurement (fee structure), delivery method, sustainable objectives (from owner), parties, who other than owner will be reviewing submittals to the owner, etc
E204
Environmental pledge exhibit, signed by owner & architect. Sustainable project objectives.
Architect’s Representative
Authorized person to act as an agent to the owner. Contractor only required to act by arch rep.
Services
Basic services
Additional services
Supplemental services
Supplemental services
Change order to the contract for supplemental service after agreement is executed. Specifically when the initial information is changed.
E203
Rules that parties must follow when transmitting documents.
B101 Article 2
Architect’s obligations
B101 Article 2
Architect’s obligations
Main difficulty (for architects) with Fast Track
Certain details may need to be worked out sooner than usual to help assemble, complete, and respond to questions about the bid packages.
Why should an owner retain a CMc as Chief Estimator
- Experience in material costs
- Knows the market conditions for labor
- They may already be involved in pre-construction services.
- They have an incentive to provide an accurate estimate.
What risk(s) are involved with the CMc Estimator inflating the cost estimate?
Subcontractors may catch wind of the inflation and raise their labor rates / markups.
What risk(s) are involved with the CMc Estimator suppressive cost estimate due to owner pressure?
Scope either needs to be cut out completely or more time must be taken to re-evaluate the quality of design (VE exercise). It can also lead to the CMc making side deals with subcontractors to lower cost which usually results in reduced quality for that trade.
The date the GMP is set
CM prefers to set GMP as far into bid phase as possible so that real construction costs can be used to form the price.
Cost cutting vs. VE
VE is a change to the design with the hopes it will lower the cost. A cost cut is the CM’s attempt to lower cost by going with a cheaper solution that will yield a similar design.
CMc pitfalls (for architect)
- Unrealistic fast schedule
- Cost estimates not based on careful drawings
- Lower GMP that does not reflect design intent.
- Lack of coordination between bid packages
Defining characteristics of IPD
- Binding multiparty agreement (O+A+C)
- Shared risk and reward
- Multi-party involvement in early design & decision making
- Indemnification from litigation for those on project delivery team
10 Fundamental Principles of IPD
- Trust
- Mutual benefit / reward
- Risks identified / accepted early
- Collaborative decision-making
- Involvement of key participants early
- Set goal definitions Early
- Intensified Planning
- Open Communication
- Collaboration Technology
- Organization and Leadership
The IPD Agreement
Multiparty contract between O-A-C based on a relationship of trust and mutual respect. Specifies the obligations that team members have to one another in IPD and the allocation of risk.
IPD Behavioral Principles
Mutual respect & trust, willingness to collaborate, open communication.
Cluster Group
A team within a team on an IPD project. Broken into smaller group to heighten productivity but still required to collaborate with the greater IPD team.
Owner benefits of IPD
Predictability, Reduced Risk, Flexibility in decision making, Elimination of adversarial relationships, Increased value at less risk.
Contractor benefits of IPD
Influence early in the design process, influence construction efficiency, elimination of change orders, more collaboration and better team relationships.
Architect benefits of IPD
Heightened team collaboration, more time to develop a fully coordinated design, participate in more than just design, reduced risk with potentially increased profit, improved building performance.