Vertical Construction

FOR NCBOC CL-012010NCBTC, NCBDE

CAPT LORENZO I ADECER PN(RET)

(LECTURER)

LT DANTE O ARELLANO PN

(COURSE DIRECTOR)

VERTICAL CONSTRUCTION

2

Definition of Construction

3

IS THE PROCESS BY WHICH MATERIAL, EQUIPMENT AND MACHINERY ARE ASSEMBLED TOWARDS CREATING A PERMANENT/ SEMI PERMANENT FACILITY

4

Design-Build

Contractor, Architect, Engineer, Consultants, Subcontractors

Owner

Design Builder

5

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

6

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

7

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

8

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

9

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

11

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.

12

Elements of Vertical Construction

Parts of a Building:

Substructure – Parts below ground usually called Foundation, including basement walls

o Superstructure – Parts above the ground

13

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

14

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

15

Management:

• Process of planning, directing and controlling resources to achieve the desired goal.

16

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.

17

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.

18

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)

19

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.

20

• 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.

21

22

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?

24

1. Owner construction force.

Owner

Construction staff

Projectdirector

Constructionforces

25

2. Owner management of construction.

Owner

Construction staff

Projectdirector

Hired laborforce

Contractor (s)

(a)* (b)*

Projectdirector

Hired laborforce

Contractor (s)

26

3. Construction by a general 3. Construction by a general contractor.contractor.

Design Firm Prime Contractor

Owner

Sub contractor(s)

Contractor work force

inspection

27

4. Construction using a design/build contract(turnkey).

(fig.1-8)

Design/build firm

Owner

Designforce

Constructionforce

Subcontractors)

28

5. Construction utilizing a construction management

contract.(fig.1-9)

Design/build firm

Owner

Designfirm

Constructionfirm (s)

Constructionmanager

29

30

31

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

32

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?

33

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?

34

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.