Stadium & Arena Structural Engineering

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Stadium & Arena Structural Engineering

November 27, 2021
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“Colossus of Rhodes” | Ancient History Encyclopedia

 

One of the marquee assets of many colleges and universities, among the costliest and most publicly visible, is the sports and recreation arena.  Some large research universities have several of them (football, hockey, basketball, track & field, etc.) — with capacities upward of 100,000 seats– which have proven structurally safe owing to the American Society of Civil Engineers Structural Engineering Institute (ASCE SEI) suite of engineering standards; developed in close coupled with the International Code Council (ICC).   Structural engineering is a fairly rarefied space in which much depends upon the inherited wisdom inspiration of generations of mathematically skilled practitioners who make the inspired imagination of an architect a reality.

We began tracking ASCE SEI standards action in 2013 with special attention to the live loading design requirement of libraries (which were dominated by stacks of books) and the replacement of libraries with media centers (with significantly fewer books).    As our legacy workspace* should reveal, we simply raised the question about space usage assumptions.  As we explain in our ABOUT there is no education industry trade association; nor any single education facility unit, that was any authority; nor any advocacy track-record, nor any primary interest in advocating for a coordinated revisit of the structural engineering safety requirements for an occupancy and use patterns that have changed.

We limit our resources to advocating for closer coordination between the ASCE and ICC titles regarding occupancy definitions and space usage.  Noteworthy proposals from the previous revision cycle:

  • Proposal S53-19 | Page 422 | Table 1607 clarifications for stadiums and arena with fixed seats and bleachers
  • Proposal S58-19 | Page 430 | Table 1607.1 regarding folding and telescopic seating and horizontal sway loads
  • Proposal S92-19 | Page 476 Section 1704.6 regarding structural observations for seismic resistance
  • Proposal EB108-19 | Page 888 Section 1106 regarding education facilities — including arenas — as storm shelters (covered here previously in a separate post)

Owners, architects and structural engineers will likely spend less time “figuring out what the code means” with respect to occupancy definition and user usage patterns.   You may read proposals from the previous revision cycle in their entirety by accessing the documents linked below:

Complete Monograph ICC Committee Action Hearings

2019 REPORT OF THE COMMITTEE ACTION HEARINGS ON THE 2018 EDITIONS OF THE GROUP B INTERNATIONAL CODES

We are hard upon the 2021/2022 ICC CODE DEVELOPMENT SCHEDULE so we have time ahead of the January 10, 2021 deadline to read the current code, review the transcripts of the back-and-forth that went into it, and formulate new proposals.  Data-rich proposals are always welcomed.

We maintain this topic on the standing agenda of our Ædificare and Sport colloquia.  See our CALENDAR for the next online meeting, open to everyone.

Issue: [16-169]

Category: Architectural, Facility Asset Management, Space Planning

Colleagues: Mike Anthony, Jack Janveja, Richard Robben, Jerry Schulte

13-68 Structural Design ASCE SEI 7

 


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Workspace / ICC

Drivable path detection system for robotic snow removal

November 22, 2021
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Tshwane University of Technology / Pretoria, South Africa

Performance of drivable path detection system of autonomous robots in rain and snow scenario

Agunbiade O. Yinka -Selemon M. Ngwira – Selemon M. Ngwira – Zuva Tranos
Tshwane University of Technology, Pretoria, South Africa
Prateek S. Sengar
Amity School of Engineering and Technology, Amity University, Noida

 

Abstract: Drivable path detection is an important factor to consider for a successful development of autonomous robot which is characterized as an intelligent vehicle. Researchers using different vision-based techniques have achieved remarkable result toward drivable path detection. Regardless of this achievement, environmental noise such as rain and/or snow can cause misdetection of drivable path which can lead to autonomous robot accident. In this paper, after investigating the effects of rain and/or snow, we introduced into the drivable path detection system a filtering algorithm that addresses the detection and removal of rain and/or snow for the optimization of the system. Experiments were carried out to show the effectiveness of the filter in the system. The results show that filtering algorithm assists the autonomous driving system in navigating perfectly during rain and/or snow scenario with minimal accident.

CLICK HERE for access to the complete paper

 

ऐमिटी युनिवर्सिटी, नॉएडा / Amity University Noida, India

State Energy Codes

November 22, 2021
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Highlandtown Community Association / US Congressional High School Art Competition / Click on image to see entries from all 50 states

 

The U.S. Department of Energy (DOE) has reviewed the 2018 edition of the International Energy Conservation Code and determined the updated edition would improve energy efficiency in buildings subject to the code compared to the 2015 edition.  First. free access to the 2018 edition is linked below:

2018 International Energy Conservation Code (IECC)

Final Determination Regarding Energy Efficiency Improvements in the 2018 International Energy Conservation Code

DOE analysis indicates that buildings meeting the 2018 IECC (as compared with buildings meeting the 2015 IECC) would result in national site energy savings of 1.68 percent, national source energy savings of 1.91 percent, and national energy cost savings of approximately 1.97 percent of residential building energy consumption.  Many colleges and universities have real assets that are classified as residential.

Detailed analysis is linked below:

Energy Savings Analysis: ANSI/ASHRAE/IES Standard 90.1-2019 (64 pages)

Upon publication of this affirmative determination, each State is required by statute to certify that it has reviewed the provisions of its residential building code regarding energy efficiency, and made a determination as to whether to update its code to meet or exceed the 2018 IECC. Additionally, this notice provides guidance on state code review processes and associated certifications.

Public consultation closes December 10, 2021

We maintain this topic on our periodic Energy and E Pluribus Unum (State) colloquia.   See our CALENDAR for the next online meeting; open to everyone.

Click on image for list of state status tabulation.

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