Vertical Construction
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FOR NCBOC CL-012010NCBTC, NCBDE
CAPT LORENZO I ADECER PN(RET)
(LECTURER)
LT DANTE O ARELLANO PN
(COURSE DIRECTOR)
VERTICAL CONSTRUCTION
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Definition of Construction
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IS THE PROCESS BY WHICH MATERIAL, EQUIPMENT AND MACHINERY ARE ASSEMBLED TOWARDS CREATING A PERMANENT/ SEMI PERMANENT FACILITY
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Design-Build
Contractor, Architect, Engineer, Consultants, Subcontractors
Owner
Design Builder
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Construction Manager
Architect/Engineer – Design services with active CMA participation– Some construction administration/participation
CMA– Preconstruction and construction phase services– Management of subcontractors– “Open book” culture & requirement
Owner
Architect / Engineer
Subcontractors
ContractContractCommunicationCommunication
Consultants
CMAR
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What is Vertical Construction?
Buildings – Includes such facilities medium and high rise buildings, residential, quarters, barracks, dormitories, hospitals, infirmaries, dispensaries, church and chapels, mess halls, theaters, banks, exchanges, shops, administration, recreational, technical, industrial, schools and storage buildings and pier sheds
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STRUCTURES – Includes such facilities as hutments, sheds, tents frames, storage tanks, underground structures for storage and other purposes such as Igl and similar installations, towers, fences, walls, pools and other training facilities
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PERMANENT BUILDINGS AND STRUCTURES
- are those which are laid out and designed to have a degree of
structural adequacy, durability and serviceability to assure a
useful life of 25 years or more under low maintenance and
service expenditures
Classification
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SEMI-PERMANENT BUILDINGS AND STRUCTURES
are those which by the design, use of materials and
equipment and methods of construction will, with normal
maintenance provides structures of an economic life of less
than 25 years and more than 5 years.
Classification
This group of Buildings and Structures includes:
(1) Facilities constructed from the emergency series plans, but of modified emergency materials and
construction
(2) Modified emergency construction
(3) World War vintage mobilization type construction; and
(4) Other types including prefabricated metal structure which meet this criteria
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TEMPORARY BUILDINGS AND STRUCTURES
Are those which by design, use of minimum quality materials equipment and methods of construction will, with minimum maintenance, provide structures of an economic life of 5 years or less.
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Elements of Vertical Construction
Parts of a Building:
Substructure – Parts below ground usually called Foundation, including basement walls
o Superstructure – Parts above the ground
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Both substructure and superstructurehelp support the LOAD of the building
TYPES OF LOAD:
1. DEAD LOAD – TOTAL WEIGHT OF ALL ITS PARTS
2. LIVE LOAD – WEIGHT OF EQUIPMENT, STORED MATERIALS, FURNITURES AND OCCUPANTS
3. WIND LOAD – IF STRUCTURE IS TO WITHSTAND STORMS
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Three (3) Main Types of Foundations
Spread Foundations – are long slabs of reinforced concrete that extend beyond the outer edges of the building
Pier Foundations – are heavy columns of concrete that penetrate down to the loose top soil to a bed of firm rock
Pile Foundations – are long slender columns of steel, concrete or wood
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Management:
• Process of planning, directing and controlling resources to achieve the desired goal.
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The Construction Contractor:
• Is that party who brings together all of the diverse elements and input of the construction process into a single, coordinated effort.
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Classification of Contractors:
• Prime”General” where he is responsible for construction of the entire project.
• Subcontractor”Speciality”where he is responsible for construction a limited aspect of the project etc..
• Plumbing,Heating,Electrical etc.
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Classification of Construction Industry
• 1.By Size• Small Medium Large Mega• 5M 15M 50-200M 200M• 2.By Ownership;• Private, Public, Military• 3.By Use;• Residential• Commercial Can be expanded to more• Industrial• Utility• 4.By Scope (Preferred)
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The Development Process:
• Project development: major steps in the process are:
• 1.Recognition of need and initial concept for the facility.
• 2.Feasibility studies (economic & technical) for the project.
• 3.Detailed plans, specifications & cost estimates.
• 4.Approval of the project by regulatory agencies.
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• 5.Advertizing the project for bid or negotiating with potential contractors.
• 6.Award of prime construction contrac (or various subcontracts, if owner-managed)
• 7.Facility construction and construction contract administration.
• 8.acceptance of completed facility by owner.
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Parties involved in the construction process:
Owner • Designer (A/E)• Contractor• General (Prime)• Subcontractor (Specialty)• Construction Manager :• Agent of owner provides services to
owner.
How Construction is Accomplished?
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1. Owner construction force.
Owner
Construction staff
Projectdirector
Constructionforces
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2. Owner management of construction.
Owner
Construction staff
Projectdirector
Hired laborforce
Contractor (s)
(a)* (b)*
Projectdirector
Hired laborforce
Contractor (s)
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3. Construction by a general 3. Construction by a general contractor.contractor.
Design Firm Prime Contractor
Owner
Sub contractor(s)
Contractor work force
inspection
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4. Construction using a design/build contract(turnkey).
(fig.1-8)
Design/build firm
Owner
Designforce
Constructionforce
Subcontractors)
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5. Construction utilizing a construction management
contract.(fig.1-9)
Design/build firm
Owner
Designfirm
Constructionfirm (s)
Constructionmanager
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Continuity through preconstruction and
construction phases
Ability to “design to cost model”
Attracts higher quality constructors
Prequalification of subcontractors
Bid process managed by constructor
Industry is geared to relationships
Owner Advantages of APDM
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Construction Manager At Risk
Creates “win-win-win” environmentNot suitable for every owner, designer,
builder or legal department– Requires different culture and people– Requires different procurement methods– Requires different processes– Requires different contracts
Focus on quality and value – not low bid– Construction is not a commodity
Opportunity or Threat?
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Enlightenment through Preconstruction Services
Team structure – strategy for success
Develop “Cost Model - Then Design”
Ability to introduce technology; ie., BIM
VE solutions/Life cycle cost studies
Phasing/sequencing plans
Timing of the price (Lump Sum or GMP)
Establishment of contingencies/allowances
Construction Manager At Risk Opportunity or Threat?
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Team Cost Management (Design)
Validate Owner’s Budget through Cost ModelProactive Budget Management during DesignCreate Allowances for Unidentified Items
– “Fill in the Holes”
Create Escalation AccountDevelopment Contingency Accounts
– Design– CMAR– Owner
Construction Manager At Risk Opportunity or Threat?
Contingency Management
Need Identified
Concept Design
Schematic Design
Design Development
Start Construction
Design Complete (Purchasing Complete)
Milestones Construction Complete
Budget / Baseline0
5%
10%
15%
20%
Project Stage
Ap
pro
pri
ate
Co
nti
ng
ency
Lev
el %
(+
/- B
ud
get
)
Escalation
Construction Contingency
Design Contingency
Design & Construction is Intended to be an Integrated Process
“Celebrating Quality & Value”
Alternate Project Delivery in Horizontal Construction
Michael J. Ladino, Esq.– Valley Metro Rail, Inc.
Kenneth A. Reedy, P.E. – City of Glendale
John E. Carlson, DBIA – Sundt Construction, Inc.
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