RTA_DRAWINGS_VOL1 - General Structural Notes - Structural Design Loads and Requirements

Oct 23, 2026

General structural notes for a building project set out governing structural standards and the design-basis codes for structural design and construction. The document defines roof, wind, earthquake, and snow load inputs, including wind pressure coefficients, seismic analysis methodology, response modification factors, and site class parameters. It also states coordination and conflict-resolution requirements with architectural, mechanical, electrical, and civil disciplines, and clarifies drawing conventions for existing vs. new construction linework and field verification responsibilities.

LanguageEnglish

CategoryResearch & Report

FormatPDF

Pages215

Reading Time9 h 2 min

AccessFree to download

GENERAL STRUCTURAL NOTES

GENERAL REQUIREMENTS

FOUNDATIONS AND SLABS-ON-GROUND

| C:\Users\hooks_a\Documents\[20002-S_adam.hooks@ssainc.com.rvt](20002-S_adam.hooks@ssainc.com.rvt)[ ](20002-S_adam.hooks@ssainc.com.rvt)6/28/202 1 2 :40 : 55 PM | A B C D E F G H I
GENERAL STRUCTURAL NOTES
A. GENERAL REQUIREMENTS
1. STRUCTURAL DESIGN IS AND CONSTRUCTION MUST BE IN ACCORDANCE WITH THE FOLLOWING.
UFC 1-200-01 GENERAL BUILDING REQUIREMENTS, 8 OCTOBER 2019
UFC 3-301-01 STRUCTURAL ENGINEERING, 1 OCTOBER 2019
IBC 2018 2018 INTERNATIONAL BUILDING CODE (AS MODIFIED BY UFC 3-301-01)
ASCE 7-16 MINIMUM DESIGN LOADS AND ASSOCIATED CRITERIA FOR BUILDINGS AND OTHER STRUCTURES ACI 301-10 SPECIFICATIONS FOR STRUCTURAL CONCRETE
ACI 315-99 DETAILS AND DETAILING OF CONCRETE REINFORCEMENT
ACI 318-14 BUILDING CODE REQUIREMENTS FOR STRUCTURAL CONCRETE
AISC 303-16 CODE OF STANDARD PRACTICE FOR STEEL BUILDINGS AND BRIDGES
AISC 360-16 SPECIFICATION FOR STRUCTURAL STEEL BUILDINGS (15TH EDITION MANUAL, LRFD)
AISI S100-12 NORTH AMERICAN SPECIFICATION FOR THE DESIGN OF COLD-FORMED STEEL STRUCTURAL
MEMBERS
AWS D1 .1 AMERICAN WELDING SOCIETY, STRUCTURAL WELDING CODE-STEEL
SJI 100-2015 STEEL JOIST INSTITUTE STANDARD SPECIFICATIONS, LOAD TABLES AND WEIGHT TABLES FOR
STEEL JOISTS AND JOIST GIRDERS, 44TH EDITION
SDI MANUAL STEEL DECK INSTITUTE, DESIGN MANUAL FOR COMPOSITE DECKS, FORM DECKS, AND ROOF
DECKS
2. DESIGN LOADS:
ROOF LOADS
SUPERIMPOSED DEAD LOAD: AS CALCULATED
LIVE LOAD: 20 PSF
WIND LOADS
DESIGN WIND PRESSURE, p = qGCp
RISK CATEGORY II, EXPOSURE C
ULTIMATE DESIGN WIND SPEED (3-SEC. GUST): 107 MPH
NOMINAL DESIGN WIND SPEED = 83 MPH
INTERNAL PRESSURE COEFFICIENT: +/-0 .18
EARTHQUAKE LOADS
ANALYSIS PROCEDURE: EQUIVALENT LATERAL FORCE PROCEDURE PER ASCE 7, 12.8
SEISMIC BASE SHEAR, V = Sds x W / (R/I)
W = DEAD LOAD
RESPONSE MODIFICATION FACTOR R=3
STEEL SYSTEMS NOT SPECIFICALLY DETAILED FOR SEISMIC RESISTANCE
SEISMIC IMPORTANCE FACTOR, I = 1.0
RISK CATEGORY: II
MAPPED SPECTRAL RESPONSE ACCELERATIONS: Ss = 0 .244g, S1 = 0 .093g
SPECTRAL RESPONSE ACCELERATIONS: Sds = 0 .26g, Sd1 = 0 . 15g
SITE CLASS: D
SEISMIC DESIGN CATEGORY: C
SNOW LOADS-GROUND SNOW LOAD = 5 PSF
FUTURE LOADS-NONE
3. THESE GENERAL NOTES APPLY TO ALL STRUCTURAL WORK EXCEPT WHERE THEY CONFLICT WITH DETAILS OR NOTES SPECIFICALLY SHOWN.
4. RESOLVE CONFLICTS ON DRAWINGS AND SPECIFICATIONS WITH THE CONTRACTING OFFICER BEFORE PROCEEDING WITH CONSTRUCTION.
5. THE STRUCTURAL DRAWINGS SHOW ONLY THE BASIC STRUCTURE. THEREFORE, REFER TO ARCHITECTURAL, MECHANICAL, ELECTRICAL, AND CIVIL DRAWINGS FOR NON-STRUCTURAL ITEMS WHICH REQUIRE SPECIAL PROVISIONS DURING CONSTRUCTION.
6. TYPICAL CONDITIONS: WHERE A SECTION OR DETAIL IS SHOWN FOR ONE CONDITION, IT MUST APPLY TO ALL LIKE OR SIMILAR CONDITIONS EVEN THOUGH NOT SPECIFICALLY MARKED ON THE PLANS.
7. REFER TO ARCHITECTURAL DRAWINGS FOR DIMENSIONS NOT SHOWN ON STRUCTURAL PLANS.
8. REFER TO ARCHITECTURAL, MECHANICAL, PLUMBING, TELECOMMUNICATIONS, AND ELECTRICAL DRAWINGS FOR SLEEVES, OPENINGS, ANCHOR BOLTS AND INSERTS, EMBEDDED ITEMS OTHER THAN REINFORCING STEEL, AND ANCHORAGES FOR ATTACHMENT OF NON-STRUCTURAL ITEMS WHICH ARE NOT SHOWN ON STRUCTURAL DRAWINGS.
9. THE SIZES AND LOCATIONS OF ALL EQUIPMENT FOUNDATIONS AND PADS, AND PENETRATIONS THROUGH THE STRUCTURE, MUST BE COORDINATED BY THE GENERAL CONTRACTOR WITH THE MECHANICAL, ELECTRICAL, TELECOMMUNICATIONS, AND PLUMBING CONTRACTORS.
10. SIZES AND LOCATIONS OF PENETRATIONS SHOWN FOR UTILITIES ARE APPROXIMATE. COORDINATE NUMBER, SIZES, AND LOCATIONS OF OPENINGS WITH THE CORRESPONDING TRADES.
11. REFER TO CIVIL DRAWINGS FOR UTILITY STRUCTURES, PAVEMENT, WALKS, AND OTHER
STRUCTURES OUTSIDE THE BUILDING LINE NOT SHOWN ON STRUCTURAL DRAWINGS THAT REQUIRE
REINFORCED CONCRETE WORK.
12. THE CONTRACTOR MUST VERIFY ALL CONDITIONS AND DIMENSIONS OF EXISTING CONSTRUCTION PRIOR TO FABRICATION OF STRUCTURAL AND REINFORCING STEEL ITEMS ATTACHED

FAQs

Which codes and standards govern structural design and construction in the document?

The notes require structural design and construction to comply with UFC 1-200-01, UFC 3-301-01, IBC 2018, ASCE 7-16, and multiple ACI, AISC, AISI, AWS, and industry steel-deck/joi st institute documents listed in the general requirements.

What live, wind, and snow load values are specified for design inputs?

Live load is given as 20 PSF. The document provides design wind pressure parameters including risk category and exposure, plus ultimate and nominal wind speeds, and internal pressure coefficients. Ground snow load is stated as 5 PSF.

How are seismic loads calculated and what key seismic parameters are used?

The analysis procedure uses an equivalent lateral force method per ASCE 7 (12.8). It expresses base shear as V = Sds x W / (R/I), using dead load W, response modification factor R=3, seismic importance factor I=1.0, and specifies risk category and spectral response accelerations.

Oct 23, 2026

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