chapter 1 general requirements (edited by aca 15feb10)

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Chapter 1 ADMINISTRATION

1-6 CHAPTER 1 General Requirements

CHAPTER 1 General Requirements 1-7

Table of Contents

3CHAPTER 1 GENERAL REQUIREMENTS

3SECTION 101 - TITLE, PURPOSE AND SCOPE

3101.1 Title

3101.2 Purpose

3101.3 Scope

3101.4 Alternative Systems

3SECTION 102 - DEFINITIONS

4SECTION 103 - CLASSIFICATION OF BUILDINGS

4103.1 Nature of Occupancy

5SECTION 104 - DESIGN REQUIREMENTS

5104.1 Strength Requirement

5104.2 Serviceability Requirement

5104.2.1 General.

5104.3 Analysis

6104.3.1 Stability Against Overturning.

6104.3.2 Self-Straining Forces.

6104.3.3 Anchorage.

6104.4 Foundation Investigation

6104.5 Design Review

6104. 6 Erection of Structural Framing

7SECTION 105 - POSTING AND INSTRUMENTATION

7105.1 Posting of Live Loads

7105.2 Earthquake Recording Instrumentation

7105.2.1 General.

7105.2.2 Location.

7105.2.3 Maintenance.

7105.2.4 Instrumentation of Selected Buildings.

7SECTION 106 - SPECIFICATIONS, DRAWINGS AND CALCULATIONS

7106.1 General

7106.2 Specifications

7106.3 Design Drawings

7106.3.1 General.

7106.3.2 Required Information.

7106.3.2.1 General Information.

8106.3.2.2 Structural Concrete

8106.3.2.3 Structural Steel

8106.4 Calculations

8106.4.1 General.

8106.4.2 Basis of Design Summary.

8106.4.3 Computer Programs.

9106.4.4 Model Analysis.

9106.5 As-built Drawings

9SECTION 107 - STRUCTURAL INSPECTIONS, TESTS AND STRUCTURAL OBSERVATIONS

9107.1 General

9107.2 Definitions

10107.3 Inspection Program

10107.4 Structural Inspector

10107.4.1 Qualifications.

10107.4.2 Duties and Responsibilities.

10107.5 Types of Work for Inspection

10107.5.1 Concrete.

10107.5.2 Bolts Installed in Concrete.

10107.5.3 Special Moment-Resisting Concrete Frames.

10107.5.4 Reinforcing Steel and Prestressing Steel Tendons.

10107.5.4.1 General.

10107.5.4.2 General.

11107.5.5 Structural Welding.

11107.5.5.1 General.

11107.5.5.2 Special Moment-Resisting Steel Frames.

11107.5.5.3 Welding of Reinforcing Steel.

11107.5.6 High-strength Bolting.

11107.5.7 Structural Masonry.

11107.5.7.1 General.

11107.5.7.2 General.

11107.5.8 Reinforced Gypsum Concrete.

11107.5.9 Insulating Concrete Fill.

12107.5.10 Spray-Applied Fire-Resistive Materials.

12107.5.11 Piling, Drilled Piers and Caissons.

12107.5.12 Shotcrete.

12107.5.13 Special Grading, Excavation and Filling.

12107.5.14 Special Cases.

12107.5.15 Non-Destructive Testing.

12107.6 Approved Fabricators

12107.7 Prefabricated Construction

12107.7.1 General.

12107.7.1.1 Purpose.

12107.7.1.2 Scope.

12107.7.1.3 Definition.

12107.7.2 Tests of Materials.

12107.7.3 Tests of Assemblies.

13107.7.4 Connections.

13107.7.5 Pipes and Conduits.

13107.7.6 Certificate and Inspection.

13107.7.6.1 Materials.

13107.7.6.2 Certificate.

13107.7.6.3 Certifying Agency.

13107.7.6.4 Field Erection.

13107.7.6.5 Continuous Inspection.

13107.8 Non-destructive Testing

13107.8.1 General.

13107.8.2 Testing Program.

13107.8.2.1 General.

14107.8.2.2 General.

14107.8.2.3 General.

14107.8.3 Others.

14107.9 Structural Observation

14107.9.1 General.

14107.9.2 Structural Observer.

14107.9.3 Construction Stages for Observations.

14SECTION 108 EXISTING STRUCTURES

14108.1 General

14108.2 Maintenance

14108.3 Additions, Alterations or Repairs

14108.3.1 General.

14108.3.2 When Allowed by the Building Official.

15108.3.3 Nonstructural.

15108.3.4 Historic Buildings.

15108.4 Change in Use

15SECTION 109 - GRADING AND EARTHWORK

15109.1 General

15109.1.1 Scope.

15109.2 Definitions

16109.3 Permits Required

16109.3.1 Permits Required.

16109.3.2 Exempted Work.

17109.4 Hazards

17109.5 Grading Permit Requirements

17109.5.1 General.

17109.5.2 Grading Designation.

17109.5.3 Engineered Grading Requirements.

18109.5.4 Geotechnical Engineering Report.

18109.5.5 Engineering Geology Report.

18109.5.6 Regular Grading Requirements.

18109.6 Grading Inspection

18109.6.1 General.

18109.6.2 Civil Engineer.

18109.6.3 Geotechnical Engineer.

18109.6.4 Engineering Geologist.

19109.6.5 Permittee.

19109.6.6 Building Official.

19109.6.7 Notification of Noncompliance.

19109.6.8 Transfer of Responsibility.

19109.7 Completion of Work

19109.7.1 Final Reports.

19109.7.2 Notification of Completion.

CHAPTER 1 GENERAL REQUIREMENTS

SECTION 101 - TITLE, PURPOSE AND SCOPE

101.1 Title

These regulations shall be known as the National Structural Code of the Philippines 6th Edition 2010, may be cited as such and will be referred to herein as this code."

101.2 Purpose

The purpose of this code is to provide minimum load requirements for the design of buildings and other structures and minimum standards and guidelines to safeguard life or limb, property and public welfare by regulating and controlling the design, construction, quality of materials pertaining to the structural aspects of all buildings and structures within this jurisdiction.

101.3 Scope

The provisions of this code shall apply to the construction, alteration, moving, demolition, repair, maintenance and use of any building or structure within this jurisdiction, except transmission towers and poles, hydraulic flood control structures, and indigeneous family dwellings.

Special structures such as but not limited to storage silos and liquid product tanks should be referred to special state of practice literature but shall refer to provisions of this code as a minimum wherever applicable.

Following are the different volumes of this code:

Volume I - Buildings, Towers and Other Vertical Structures

Volume II - Bridges

Volume III -Housing

Volume IV -Railways

Volume V-Ports and Harbors

For additions, alterations, maintenance, and change in use of buildings and structures, see Section 108.

Where, in any specific case, different sections of this code specify different materials, methods of construction or other requirements, the most restrictive provisions shall govern except in the case of single family dwellings. Where there is a conflict between a general requirement and a specific requirement, the specific requirement shall be applicable. Wherever in this code reference is made to an appendix, the provisions in the appendix shall not apply unless specifically adopted.

101.4 Alternative Systems

The provisions of this code are not intended to prevent the use of any material, alternate design or method of construction not specifically prescribed by this code, provided any alternate has been permitted and its use authorized by the building official.

Sponsors of any system of design or construction within the scope of this code, the adequacy of which had been shown by successful use and by analysis and test, but which does not conform to or is not covered by this code, shall have the right to present the data on which their design is based to the building official or to a board of examiners appointed by the building official. This board shall be composed of competent structural engineers and shall have authority to investigate the data so submitted, to require tests, and to formulate rules governing design and construction of such systems to meet the intent of this code. These rules, when approved and promulgated by the building official, shall be of the same force and effect as the provisions of this code.

SECTION 102 - DEFINITIONS

For the purpose of this code, certain terms, phrases, words and their derivatives shall be construed as specified in this chapter and elsewhere in this code where specific definitions are provided. Terms, phrases and words used in the singular include the plural and vice versa. Terms, phrases and words used in the masculine gender include the feminine and vice versa.

The following terms are defined for use in this chapter:

ADDITION is an extension or increase in floor area or height of a building or structure.

ALLOWABLE STRESS DESIGN is a method of proportioning structural members such that elastically computed stresses produced in the members by nominal loads do not exceed specified allowable stresses (also called WORKING STRESS DESIGN).

ALTER or ALTERATION is any change, addition or modification in construction or occupancy.

APPROVED as to materials and types of construction, refers to approval by the building official as the result of investigation and tests conducted by the building official, or by reason of accepted principles or tests by recognized authorities, technical or scientific organizations.

AUTHORITY HAVING JURISDICTION is the organization, political subdivision, office or individual charged with the responsibility of administering and enforcing the provisions of this code.

BUILDING is any structure usually enclosed by walls and a roof, constructed to provide support or shelter for an intended use or occupancy.

BUILDING, EXISTING, is a

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