• ASCE/SEI 7-16
• Supplements & Errata

Get your Kindle here, or download a FREE Kindle Reading App. Seismic Analysis of Safety-Related Nuclear Structures (4-16). Of the Codes and Standards Activities Division of the Structural Engineering Institute of ASCE. Load Combinations: ASCE 7-10 LRFD In the United States, ASCE 7-10 is an key part of the building code. It focuses on the requirements for general structural design, as well as providing a means for determining loads (dead, live, soil, flood, snow, rain, ice, earthquake, wind) and their combinations. ASCE rules require a 30 day advance meeting announcement. Please complete this form to request a meeting date and time. Step 3: Public Comment. Public comment – In accordance with ASCE Rules for Standards Committees, ASCE conducts a minimum 45-day Public Comment period on any new, revised, or reaffirmed standard.

ASCE 7-05 Code Information

The ASCE 7 Standard Minimum Design Loads for Buildings and Other Structures is the document the International Building Code (IBC) relies on for its structural and nonstructural requirements. ASCE 7-05, was the standard referenced in the 2006 and 2009 IBC’s, but has now been substituted by ASCE 7-10 in the 2012 IBC. Per the code updates, there are some changes in the nonstructural requirements for commercial building that may affect your project.

• Get your Kindle here, or download a FREE Kindle Reading App. Seismic Analysis of Safety-Related Nuclear Structures (4-16). Of the Codes and Standards Activities Division of the Structural Engineering Institute of ASCE.
• An integral part of building codes in the United States, Minimum Design Loads and Associated Criteria for Buildings and Other Structures (ASCE/SEI 7-16) describes the means for determining dead, live, soil, flood, tsunami, snow, rain, atmospheric ice, earthquake, and wind loads, and their combinations for general structural design.

The differences below are directly from ASCE 7 and pertain to structures in Seismic Design Categories C, D, E and F. They do not account for State or Local code amendments (if any).

1. The single most significant change is the addition of an Omega over-strength factor requirement for anchorages to concrete. The over-strength factor results in a significant reduction in anchorage allowable design capacity to the extent that allowable anchor load may govern maximum allowable brace spacing. Simply put, this reduced anchorage capacity greatly increases the likelihood that anchorage capacity may govern the maximum allowable brace spacing. Reductions in brace spacing vs. that under ASCE 7-05 are likely particularly in areas with high horizontal ground accelerations.
   
2. ELECTRICAL SYSTEMS
   
   • ASCE 7-05: Brace all conduit greater than 2-1/2” trade size and all trapeze supported raceways supporting loads greater than 10 lbs/lf.
   • ASCE 7-10: Brace all conduit equal to or greater than 2-1/2” trade size and all trapeze supported raceways supporting loads equal to or greater than 10 lbs/lf.
     
3. PLUMBING and MECHANICAL PIPING
   
   • ASCE 7-05: Brace all trapeze assemblies designed to support loads greater than 10 lbs/lf.
   • ASCE 7-10: Brace all trapeze assemblies designed to support loads greater than or equal to 10 lbs/lf.
     
4. HVAC DUCT
   
   • ASCE 7-05: Brace all suspended ductwork greater than or equal to 6 Sq Ft. cross-sectional area or weighing greater than 5 lbs/lf.
   • ASCE 7-10: Brace all suspended ductwork greater than or equal to 6 Sq Ft. cross-sectional area or weighing greater than 17 lbs/lf.
   • Brace all duct designed to carry or convey toxic, highly toxic or flammable gases or used for smoke control.

ASCE705W is a spreadsheet program written in MS-Excel for the purpose of wind loading analysis for buildings and structures per the ASCE 7-05 Code. Specifically, wind pressure coefficients and related and required parameters are selected or calculated in order to compute the net design wind pressures.

This program is a workbook consisting of nine (9) worksheets, described as follows:

• Simplified - Analysis using simplified method for low-rise buildings with h <= 60’
• MWFRS (Low-Rise) - Main Wind-Force Resisting System for low-rise buildings with h <= 60’
• MWFRS (Any Ht.) - Main Wind-Force Resisting System for buildings of any height
• Wall C&C - Analysis of wall Components and Cladding
• Roof C&C - Analysis of roof Components and Cladding
• Stacks & Tanks - Analysis of cantilevered chimneys, stacks, and vertical tanks
• Open Structures (no roof) - Analysis of open structures without roofs
• Wind Map - Basic wind speed map (Figure 6-1 of ASCE 7-05 Code)

Program Assumptions and Limitations:

1. Worksheet for 'Simplified' analysis is applicable for low-rise buildings meeting the criteria of Section 6.4.1.

2. In the worksheet for Simplified analysis, the design MWFRS wind load is calculated for each direction. The design MWFRS load is assumed to be the total wind load on either the width or the length of the building respectively.

3. Worksheet for 'MWFRS (Low-Rise)' is applicable for low-rise buildings as defined in Section 6.2.

4. Download game tekken 3 on internet download manager. Worksheets for 'MWFRS (Any Ht.)', 'Wall C&C', and 'Roof C&C' are applicable for buildings with mean roof heights of up to 500 feet.

5. In worksheets for 'MWFRS (Any Ht.)', 'Wall C&C', and 'Roof C&C' the user may opt to utilize user designated steps in height, 'z', in determining the wind pressure distribution.

6. Worksheets for 'MWFRS (Any Ht.)', 'Stacks & Tanks', and 'Open Structures' can handle “rigid” as well as “flexible” buildings and structures. For “rigid” buildings or structures, this program uses the smaller value of either 0.85 or the calculated value from Section 6.5.8.1 of the Code for the gust effect factor, 'G'. For “flexible” buildings or structures, this program calculates the gust effect factor, ‘Gf’, per Section 6.5.8.2 of the Code based on the assumed formula for the fundamental period of vibration from Section 12.8.2.1 of the Code, where the exponent 'x' in the formula T = Ct*h^x is assumed to be 0.75.

7. Worksheets for 'Wall C&C' and 'Roof C&C' are applicable for flat roof buildings, gable roof buildings with roof angles <= 45 degrees, and monoslope roof buildings with roof angles <= 3 degrees.

8. Worksheet for 'Stacks & Tanks' is applicable for cantilevered structures up to 600 feet tall.

9. Worksheet for 'Open Structures' is applicable for open structures without roofs up to 500 feet tall. This can be utilized for open process-type structures as well as pipe/utility racks and bridges.

10. This program uses the equations listed in the reference, “Guide to the Use of the Wind Load Provisions of ASCE 7-02” for determining the external wind pressure coefficients, ‘GCp’, used in the Wall C&C and Roof C&C worksheets. (Note: a version of this document applicable to the ASCE 7-05 Code was not available.)

11. This program contains numerous “comment boxes” which contain a wide variety of information including explanations of input or output items, equations used, data tables, etc. (Note: presence of a “comment box” is denoted by a “red triangle” in the upper right-hand corner of a cell. Merely move the mouse pointer to the desired cell to view the contents of that particular 'comment box'.)

* ASCE705W download link provides freeware version of the software.

ASCE702W is a spreadsheet program written in MS-Excel for the purpose of wind loading analysis for buildings and structures per the ASCE 7-02 Code.

ASCE705S is a spreadsheet program written in MS-Excel for the purpose of flat roof snow loading analysis for buildings and structures per the ASCE 7-05 Code.

ASCE702S is a spreadsheet program written in MS-Excel for the purpose of flat roof snow loading analysis for buildings and structures per the ASCE 7-02 Code.

ASCE705I is a spreadsheet program written in MS-Excel for the purpose of determining ice loading due to freezing rain on structural steel members per the ASCE 7-05 Code.

Analysis of seismic loading per IBC2009 Code (and ASCE 7-05), using Equivalent Lateral Force method.

Stand-alone program for numerical simulations of wind flows in the digital wind tunnel as well as for exporting the generated wind loads to RFEM and RSTAB.

ASCE/SEI 7-16

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