THE NATIONAL STRUCTURAL
CODE OF THE PHILIPPINES 7TH
EDITION (NSCP 2015)
AND OTHER REFERRAL CODES
Engr. JUANITO D CUNANAN, M.ASEP, M.PICE
ASEP Director 2012-2018
Member, PICE ISG Committee
Review: Project Life Cycle
PUBLIC SECTOR MANAGEMENT CYCLE
0 +10 point Socioeconomic Agenda
PLANNING
PLANNING
Socioeconomic
Report
Philippine Development Plan
and related documents
Sustainable
Development
Goals Report
Medium Term
Expenditure Framework
Sector/ Program/
Project Evaluation
Report
Organizational
Performance
Indicator
Framework
EVALUATION
EVALUATION
BUDGETING
BUDGETING
RESULTS
National
Expenditure
Program
Official Development
Assistance Review
Monitoring Reports
Agency Accomplished
Reports
MONITORING
IMPLEMENTATION
IMPLEMENTATION
Procurement
Contracting
Disbursement
Note: Framework based on the results-based Public Sector Management (PSM) framework developed
by the Asia-Pacific Community of Practice on Managing for Development Results (APCoP-MfDR).
What Laws are necessary?

Environmental Protection
 1987 Philippine
Constitution
 Clean Air Act of 1999 (RA 8749)
 Ecological Solid Waste Management Act of 2000 (RA
9003)
 Philippine Clean Water Act of 2004 (RA 9275)
 Philippine Environmental Impact Statement System
(PD1586 1978)
 Climate Change Act of 2009 (RA 9729)
 Environmental Awareness and Education Act of 2008
 And many other more
What Laws are necessary?

Regulatory Laws
 PD
1096 or the National Building Code of the
Philipppines
 Sanitation Code of the Philippines (PD 856 of 1975)
 Water Code of the Philippines (PD 1067)
 RA 9514 or the Comprehensive Fire Code of the
Philippines Act of 2008 revising PD 1185
 Consumer Act of the Philippines (RA 7394)
 National Structural Code of the Philippines
DPWH Design Guidelines

DPWH Design Guidelines, Criteria and Standards
 Volume 1:
 Volume 2A:
 Volume 2B:
 Volume 2C:
Investigation
 Volume 3:
 Volume 4:
 Volume 5:
 Volume 6:
Structures
Introduction and Overview
Geohazard Assessment
Engineering Surveys
Geological and Geotechnical
Water Engineering Projects
Highway Design
Bridge Design
Public Building and other Related
DGCS Goal
THE NSCP: STRUCTURAL CODE
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Is a set of rules, provisions, and standards for
structural designers to use a guide in the
design, detailing, and construction of a
structure
Minimum requirements in the design and
detailing of structures
Minimum requirement of the code is for life
safety
Updated based on effect of previous disasters
and best practices
TIMELINE OF NSCP EDITIONS
1970
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1985
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1995
2000
2005
2010
2015
NATIONAL STRUCTURAL CODE FOR BUILDINGS, 1ST EDITION
(NSCB 1972)
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Based on the Uniform Building Code (UBC 1970)
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Wind Pressures are provided in a Table
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Earthquake Force, V = ZKCW
2020
TIMELINE OF NSCP EDITIONS
1970
1975
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1985
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NATIONAL STRUCTURAL CODE FOR BUILDINGS, 2ND EDITION (NSCB 1981)
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Based on the Uniform Building Code (UBC 1979), Earthquake Force, V = ZIKCSW
Introduction of Importance factor, seismic zones (3 zones – Palawan and Tawi-Tawi, Ccentral Visayas
and Western Mindanao, Rest of the Philippines
Use of Wind Zone Map (ZI – 200kPH, ZII – 175kPH, ZIII – 96kPH). Wind pressures are already given
relative to a range of heights
Adaptation of SI/Metric system, Wood was still Chapter 3
Ultimate Strength Design for Concrete and Allowable Stress Design for Steel
TIMELINE OF NSCP EDITIONS
1970
1975
1980
1985
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1995
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2010
2015
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NATIONAL STRUCTURAL CODE OF THE PHILIPPINES, 3RD EDITION
(NSCP 1987)
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Based on the Uniform Building Code (UBC 1985), Earthquake Force, V = ZIKCSW
Introduction of Seismic Zone 4 – adapted to the whole archipelago
Use of Wind Zone Map (ZI – 200kPH, ZII – 175kPH, ZIII – 150kPH). Wind pressures are
already given relative to a range of heights
Ultimate Strength Design for Concrete and Allowable Stress Design for Steel
TIMELINE OF NSCP EDITIONS
1970
1975
1980
1985
1990
1995
2000
2005
2010
2015
2020
NATIONAL STRUCTURAL CODE OF THE PHILIPPINES, 4TH EDITION
(NSCP 1992), Volume I
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Based on the Uniform Building Code (UBC 1988), two seismic zones (II and IV)
Design Base Shear, V = (ZIC/RW)W, S factors based on soil profiles, more specific definition
of structural systems, irregularities, and details of dynamic analysis
Wind Pressures, P = CeCqqsI, Wind Speeds (ZI – 200kPH, ZII – 175kPH, ZIII – 150kPH)
Ultimate Strength Design for Concrete and Allowable Stress Design for Steel
TIMELINE OF NSCP EDITIONS
1970
1975
1980
1985
1990
1995
2000
2005
2010
2015
2020
NATIONAL STRUCTURAL CODE OF THE PHILIPPINES, 5TH EDITION (NSCP 2001)
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Earthquake Load Provisions based on UBC 1997 and inclusion of Active Fault Maps from PHIVOLCS,
inclusion of near source factors, seismic source type, etc.
Wind Load Provisions based on ASCE7-98 and EIA/TIA – 22E
Wind speed (ZI – 250 kPH, ZII – 200 kPH, ZIII – 150 kPH)
Reorganized chapters, provisions for design review and installation of seismic recording instruments,
etc.
Ultimate Strength Design for Concrete and Allowable Stress Design for Steel
TIMELINE OF NSCP EDITIONS
1970
1975
1980
1985
1990
1995
2000
2005
2010
2015
2020
NATIONAL STRUCTURAL CODE OF THE PHILIPPINES, 6TH EDITION (NSCP 2010)
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Earthquake Load Provisions based on UBC 1997 and inclusion of Active Fault Maps from PHIVOLCS,
Spectral Acceleration recognized as an alternative procedure (ASCE/SEI 7-05)
Wind Load Provisions based on ASCE7-05 and EIA/TIA-222-G
Wind Speed (ZI – 250kPH, ZII – 200kPH, ZIII – 250kPH)
Ultimate Strength Design for Concrete and Allowable Strength Design and Load Resistance Factor
Design for Steel
Cold-formed steel is included in Chapter 5 – Structural Steel
TIMELINE OF NSCP EDITIONS
1970
1975
1980
1985
1990
1995
2000
2005
2010
2015
2020
NATIONAL STRUCTURAL CODE OF THE PHILIPPINES, 7TH
EDITION (NSCP 2015)
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Earthquake Load Provisions based on UBC 1997 and updated Active Fault
Maps presented by region (colored)
Wind Load Provisions based on ASCE7-10 and Wind Contour Maps
(colored) for the entire Philippine Archipelago
RECENT NATURAL DISASTERS
2009
2010
2011
2012
2013
160 kph
Typhoon Ondoy (165 kph)
September 2009
200 kph
Typhoon Pedring (215 kph)
September 2011
240 kph
Typhoon Pepeng (250 kph)
October 2009
280 kph
Typhoon Glenda (260 kph)
July 2014
Typhoon Pablo (280 kph)
December 2012
Typhoon Juan (295 kph)
October 2010
320 kph
Typhoon Yolanda (315 kph)
November 2013
2014
2015
RECENT NATURAL DISASTERS
2009
2010
2011
2012
2013
Misamis Oriental EQ (M4.6)
December 2014
M5.0
M5.5
M6.0
M6.5
M7.0
M7.5
M8.0
2014
Valencia City, Bukidnon EQ (M5.2)
November 2011
Surigao EQ (M5.9)
March 2012
Ilocos Region EQ (M6.4)
March 2011
Cotabato EQ (M5.3)
June 2013
Bukidnon EQ (M5.6)
Sultan Kudarat EQ (M5.9)
September2012
Coast of Mindanao EQ (M6.2)
February 2013
Batangas EQ (M5.7)
Zambales EQ (M5.9)
June 2014
December 2014
Surigao Del Norte EQ (M6.1)
July 2015
Negros Oriental EQ (M6.9)
February 2012
Bohol EQ (M7.2)
October 2013
Moro Gulf EQ (M7.3)
July 2010
Samar Coast EQ (M7.8)
August 2012
2015
http://www.preventionweb.net
Climate Change
RELEASE OF THE NSCP 7th Ed.
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The NSCP 7th Edition was scheduled to be released in 2015
DPWH has already reviewed the final draft of the code and
on August 26, 2016, Former DPWH Secretary Rogelio
Singson approved and declared that the NSCP 2015 to be
adopted as a Referral Code of PD 1096
Issue on the inclusion of 2-km near source factor for
Earthquake Load provisions
Based on draft version of ACI 318R-14 published in May
2014 as guide.
Subsequently updated to ACI 318M-14 published only in
March 2015
RELEASE OF THE NSCP 7th Ed.
LAUNCHING OF THE NSCP 7th ED.
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The NSCP 7th Edition was formally launched on
December 7, 2016 at the Marco Polo Hotel, Ortigas
The event was graced by the following:
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USEC Catalina Cabral of DPWH and President-elect of PICE
Christopher Gacutan, Office of Civil Defense
Joselito Guevarra, President of Philippine Association of
Building Officials
Dr. Romeo Estañero, Member of Board of Civil Engineering,
PRC
HIGHLIGHTS OF NSCP 2015 EDITION
UPDATES
OVERVIEW OF UPDATES
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Chapter 1 – General Requirements
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Additional definitions: Failure, Structural Failure, Structural
Engineer, etc.
Additional classification of building/structure to occupancy
categories,
Required structures (occupancy categories) for
soil/foundation investigation
Appendices
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Recommended Guidelines on Structural Design Peer Review of
Structures 2015
Guidelines and Implementing Rules on Earthquake Recording
Instrumentation for Buildings.
OVERVIEW OF UPDATES
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Chapter 2 – Loads and Actions
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Additional Live Loads
2-km near source factor for Earthquake Load Provisions
Faults Maps presented by regions
Wind Loads Provisions updated to ASCE7-10
Introduction of wind contour map of the entire Philippine
archipelago
OVERVIEW OF UPDATES
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Chapter 3 – Earthworks and Foundations
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Updates on some tables and figures, i.e. Table 304-1 –
Allowable Foundation and Lateral Pressures, cut and fill
slope figures
Erosion Control subsections has been expanded (scour
protection)
Subsection on Mechanically Stabilized Earth (MSE)
structures and similar Reinforced Embankments and Fills
Table on the minimum required number of boreholes for
foundation investigation
General pile requirements have been expanded (design of
piles and pile groups subject to lateral loads)
OVERVIEW OF UPDATES
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Chapter 4 – Structural Concrete
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Based on ACI 318-14
Organized as a member-based, i.e. particular member type
will have separate sub-sections for all requirements for
design
Several reference standards and specification have been
updated
New referenced specification from Australia and New
Zealand is added related to qualification on the use of
Quenched Tempered QT/Thermo-Mechanically Treated
Reinforcement
OVERVIEW OF UPDATES
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Chapter 4 – Structural Concrete
Quenched Tempered QT/Thermo-Mechanically
Treated Reinforcement
• Upon rolling, the deformed steel bar is passed
through a quenching line whereby the periphery is
subjected to intense water quenching in a short
time whereas the core remains largely unaffected.
On leaving the quenching system, the core heat is
utilized to temper the quenched outer surface. The
resulting structure is a concentric tempered
martensite periphery with a softer ferrite-pearlite
core
OVERVIEW OF UPDATES
A shell with the specified
strength but core with
less than specified yield
strength of steel rebar
OVERVIEW OF UPDATES
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Chapter 4 – Structural Concrete
Quenched Tempered QT/Thermo-Mechanically
Treated Reinforcement
• Restrictions indicated in Sub-section 420.7.6, on the
use of quenched-tempered thermo-mechanically
treated (QT/TMT) reinforcing bars in structures
located in seismic zone 4 for Grade 420 (or higher)
reinforcement, unless proven in subsequent studies
and tests.
OVERVIEW OF UPDATES
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Chapter 5 – Structural Steel
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No major change from the previous edition
Streamlining of format, i.e. definitions in one section,
figures drawn larger, extraneous user notes are removed,
etc.
Additional sub-sections on Structural Fire, Stability Bracing
for Columns and Beams, and Buckling-Restrained Braced
Frames (BRBF)
OVERVIEW OF UPDATES
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Chapter 6 - Wood
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Although Wood Design is not practiced in the Philippines,
this chapter serves as reference to our designers who will
still be practicing wood design in other countries
Adapted National Design Specification for Wood
Construction (NDS 2015)
Offers a more updated and complete “road map” in wood
design
Easier for designers to navigate and follow
OVERVIEW OF UPDATES
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Chapter 7 - Masonry
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Although Wood Design is not practiced in the Philippines,
this chapter serves as reference to our designers who will
still be practicing wood design in other countries
Adapted National Design Specification for Wood
Construction (NDS 2015)
Offers a more updated and complete “road map” in wood
design
Easier for designers to navigate and follow
OVERVIEW OF UPDATES
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Chapter 7 - Masonry
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No major changes in content. Units are arranged to
conform with SI units
Cross referencing to other references codes were changed
to NSCP sections.
Offers a more updated and complete “road map” in wood
design
Easier for designers to navigate and follow
Flashback of Unwanted Events
Negros Oriental EQ (M6.9) 2012
Negros Oriental EQ (M6.9) 2012
Bohol EQ (M7.2) 2013
Bohol EQ (M7.2) 2013
Bohol EQ (M7.2) 2013
Bohol EQ (M7.2) 2013
Bohol EQ (M7.2) 2013
Surigao EQ (M6.7) 2017
Surigao EQ (M6.7) 2017
Surigao EQ (M6.7) 2017
Surigao EQ (M6.7) 2017
Surigao EQ (M6.7) 2017
Surigao EQ (M6.7) 2017
Surigao EQ (M6.7) 2017
Tainan EQ (M6.9) 2016
Tainan EQ (M6.9) 2016
Tainan EQ (M6.9) 2016