B.08 Ejubukweni_Att#4 Preparation of Structural Calculations.pdf
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Department of the Army European Command
About this file
This document is an Engineering Guideline issued by the U.S. Army Corps of Engineers (USACE) Europe District. The guideline provides a standard format for preparing structural calculations for construction projects within the USACE's area of responsibility. It outlines the required elements of the calculations, including a cover sheet, table of contents, preliminary remarks, drawings, load assumptions, calculations, bearing reaction information, and attachments. The guideline aims to ensure structural calculations are self-contained, complete, clearly structured, and reviewable by third parties.
The document also includes details on a related federal contract opportunity for a design-build project to construct and renovate two existing school facilities in Eswatini. The U.S. Army Corps of Engineers is soliciting proposals for this project, which has an estimated contract value between $1,000,000 and $5,000,000 and an anticipated performance period of 480 calendar days. The solicitation will be subject to full and open competition, with no small business set-asides. The document provides information on how interested parties can register to be eligible as a contractor with the U.S. Government.
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Text version
DEPARTMENT OF THE ARMY
U.S. ARMY CORPS OF ENGINEERS
EUROPE DISTRICT
CMR 410, BOX 1
APO AE 09096-0001
CENAU-EC-E July 2016
ENGINEERING GUIDELINE 01/2016
SUBJECT: PREPARATION OF STRUCTURAL CALCULATIONS
I. BACKGROUND
The intent of the Guideline is to provide a standard format to be used for all structural calculations prepared for construction projects within the USACE NAU Area of Responsibility.
The application of this guideline for all Structural Calculation Submittals will guarantee a reviewable and executable structural submittal at a standard quality level.
II. ENGLISH VERSION
A. For all structural calculations, the following requirements apply:
Each calculation must be self-contained and complete.
It must enable further use by third-parties.
It must be clearly and fully structured.
It must be readable and reviewable.
It must be able to be copied and scanned.
Stress and deflection of the loadbearing system is to be verified in a complete, clearly presented and reviewable way for all construction components and connections.
It must contain all information required for the connection design.
Print-outs of digitally supported calculations must be complete, comprehensible and reproducible. They shall clearly define input data such as the magnitude and location of all loads, member sizes, support locations and fixity, and the units of measure.
The essential results of the calculations shall be highlighted (e.g. the internal forces used for follow on calculations)
B. Structural calculations are to be structured as follows:
1. Cover sheet
2. Table of contents
3. Preliminary remarks
4. Overview drawings, position plans,
5. Load assumptions/approaches
6. Calculations and verification, construction sketches
7. Bearing reaction (connection force table)
8. Signed final sheet
9. Attachments
CENAU-EC-E ENGINEERING GUIDELINE 01/2016
C. The following paragraphs provide more detailed descriptions on the outline of the subsequent items:
1. Cover sheet
Project name
Project number
Ordering party / responsible construction agent
Designer
Date
2. Table of contents
3. Preliminary remarks
Short description of the building/structure (dimensions, use, structural systems for the transfer of vertical and horizontal loads, special characteristics of the supporting structure), deflection limits, positioning of expansion joints etc.
Information on the location (e.g. wind load zones, snow load zones, elevation above MSL, special geographic location (e.g. on a mountain top), seismic zone,…
Materials used
Information on subgrade conditions
Standoff distances and applicable explosive weight for blast pressures and impulse loads
Codes and literature used
Computer software used, under indication of the version number and the name of the company
Listing of the drawings that belong to the structural assessment
4. Overview drawings, position plans Drawings that enable the review of the feasibility of the structure and the bracing elements, the location of the designed element positions in the overall supporting structure as well as all structural drawings/sketches:
Well viewable depiction of the structural stability systems
Axis and row denominations as well as height marks (height above datum)
Global coordinate system
System dimensions
Position numbers
Joint layout
5. Load assumptions/approaches
Information on load assumptions/approaches such as self-weight, snow loads, wind loads, seismic loads, live loads etc.
CENAU-EC-E ENGINEERING GUIDELINE 01/2016
6. Calculations, verification and structural sketches
Calculations for all internal forces and deflections as well as the verification of load-bearing capacity, usability, fatigue, position stability etc. The layout shall look as follows for each item:
Indication of the position number and name of the supporting structure components (e.g. eaves purlin, gable wall strut etc.)
System drawing with dimensioning, load-bearing situation and information on bracing quality
List of loads and load combinations
Calculations of structural capacity, if applicable insert computerized/digital print-outs
Assessment of structural capacities
Verifications
Information on cambering
Structural sketches on all verified details
Verification of all connections to include the structural sketches or reference to connection force tables
7. Bearing reaction (connection force tables), delegated design components
If the transfer of loads is interrupted at some point of the design (e.g. designer calculates the structural system and provides loads to another to design the foundations), then the forces to be transferred must be presented in such a way that third parties can conduct corresponding design or review/verification of these loads at all times. These loads shall be presented in foundation load tables and connection force tables for all connections that are not a part of the detailed structural design. Forces for f = 1.0 from each load condition are to be indicated with reference to the global coordinate system.
For delegated design components the design shall provide applicable load and deflection criteria.
8. Final page
Designer’s name plus stamp and signature.
9. Attachment e.g. computerized/digital print-outs
Points of Contact
CENAU POC for this Engineering Guideline 01/2016 is:
Achim Knacksterdt, Chief, Technical Engineering Section
JAMES NOBLE
CHIEF, ENGINEERING BRANCH
CENAU-EC-E
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