Building Structural Maintenance

  1. Home
    2. Page 14
Loading
loading...

Building Structural Maintenance

June 1, 2025
mike@standardsmichigan.com
No Comments
φ
Any multi-story building requires inspection and maintenance of structural steel framework. The steel supports the building’s weight and resists environmental forces like wind and seismic activity. Over time, corrosion, fatigue cracks, or connection failures can weaken the structure, risking collapse. Inspections detect these issues early, while maintenance, like repainting or replacing damaged parts, preserves steel integrity. For student housing, occupant safety is critical, and compliance with building codes reduces liability risks. Neglecting these practices can lead to structural failure, endangering residents and causing costly repairs or legal issues. Regular upkeep ensures safe, long-lasting buildings.
During today’s session we examine the relevant standards with proposed revisions open for public comment.  Use the login credentials at the upper right of our home page.
φ
No single universal code or standard guarantees that buildings will never crack or fail structurally, as structural integrity depends on various factors like design, materials, construction quality, environmental conditions, and maintenance. However, several widely adopted codes and standards aim to minimize the risk of structural failure and ensure safety, durability, and serviceability. These provide guidelines for design, construction, and maintenance to prevent issues like cracking or catastrophic failure.
φ

Key Codes and Standards:

International Building Code (IBC): Widely used in the United States and other regions, the IBC sets minimum requirements for structural design, materials, and maintenance to ensure safety and performance.  It references standards like ASCE 7 (Minimum Design Loads and Associated Criteria for Buildings and Other Structures) for load calculations (e.g., wind, seismic, snow).Maintenance provisions require regular inspections and repairs to address issues like cracking or deterioration.

ACI 318 (Building Code Requirements for Structural Concrete): Published by the American Concrete Institute this standard governs the design and construction of concrete structures.Includes requirements to control cracking (e.g., reinforcement detailing, concrete mix design) and ensure durability under environmental exposure.Maintenance guidelines recommend periodic inspections for cracks, spalling, or reinforcement corrosion.

AISC 360 (Specification for Structural Steel Buildings): Published by the American Institute of Steel Construction, this standard covers the design, fabrication, and erection of steel structures.  Addresses fatigue, connection design, and corrosion protection to prevent structural failure. Maintenance involves inspecting for issues like weld imperfections or coating degradation.

ASCE/SEI 41-17 (Seismic Evaluation and Retrofit of Existing Buildings):  Focuses on assessing and maintaining existing structures, particularly for seismic performance.  Guides retrofitting to address vulnerabilities like cracking or inadequate load paths.
Maintenance Standards
  • ACI 562 (Assessment, Repair, and Rehabilitation of Existing Concrete Structures):
    • Provides a framework for evaluating and repairing concrete structures to address cracking, spalling, or other damage.
    • Emphasizes regular inspections and timely repairs to maintain structural integrity.
  • NACE/SP0108 (Corrosion Control of Offshore Structures):
    • Covers maintenance practices to prevent corrosion-related failures in steel structures.
  • ASTM E2270 (Standard Practice for Periodic Inspection of Building Facades):
    • Outlines procedures for inspecting facades to identify cracking, water infiltration, or other issues that could lead to structural problems.

IEEE: Structural Health Monitoring system based on strain gauge enabled wireless sensor nodes

Steel research in the steel city

Researchers Make Wood Stronger than Steel

Concrete Matters

Readings: The “30-30” Rule for Outdoor Athletic Events Lightning Hazard

June 1, 2025
mike@standardsmichigan.com
, , ,
No Comments

Thunderstorm | Shelter (Building: 30/30 Rule)

The standards for delaying outdoor sports due to lightning are typically set by governing bodies such as sports leagues, associations, or organizations, as well as local weather authorities. These standards may vary depending on the specific sport, location, and level of play. However, some common guidelines for delaying outdoor sports due to lightning include:

  1. Lightning Detection Systems: Many sports facilities are equipped with lightning detection systems that can track lightning activity in the area. These systems use sensors to detect lightning strikes and provide real-time information on the proximity and severity of the lightning threat. When lightning is detected within a certain radius of the sports facility, it can trigger a delay or suspension of outdoor sports activities.
  2. Lightning Distance and Time Rules: A common rule of thumb used in outdoor sports is the “30-30” rule, which states that if the time between seeing lightning and hearing thunder is less than 30 seconds, outdoor activities should be suspended, and participants should seek shelter. The idea is that lightning can strike even when it is not raining, and thunder can indicate the proximity of lightning. Once the thunder is heard within 30 seconds of seeing lightning, the delay or suspension should be implemented.
  3. Local Weather Authority Guidelines: Local weather authorities, such as the National Weather Service in the United States, may issue severe weather warnings that include lightning information. Sports organizations may follow these guidelines and suspend outdoor sports activities when severe weather warnings, including lightning, are issued for the area.
  4. Sports-Specific Guidelines: Some sports may have specific guidelines for lightning delays or suspensions. For example, golf often follows a “Play Suspended” policy, where play is halted immediately when a siren or horn is sounded, and players are required to leave the course and seek shelter. Other sports may have specific rules regarding how long a delay should last, how players should be informed, and when play can resume.

It’s important to note that safety should always be the top priority when it comes to lightning and outdoor sports. Following established guidelines and seeking shelter when lightning is detected or severe weather warnings are issued can help protect participants from the dangers of lightning strikes.

National Weather Service
NCAA Guideline: Lightning Safety
Noteworthy: NFPA titles such as NFPA 780 and NFPA 70 Article 242 deal largely with wiring safety, informed by assuring a low-resistance path to earth (ground)

There are various lightning detection and monitoring devices available on the market that can help you stay safe during thunderstorms. Some of these devices can track the distance of lightning strikes and alert you when lightning is detected within a certain radius of your location. Some devices can also provide real-time updates on lightning strikes in your area, allowing you to make informed decisions about when to seek shelter.

Examples of such devices include personal lightning detectors, lightning alert systems, and weather stations that have lightning detection capabilities. It is important to note that these devices should not be solely relied upon for lightning safety and should be used in conjunction with other safety measures, such as seeking shelter indoors and avoiding open areas during thunderstorms.

Nighttime Walk

June 1, 2025
mike@standardsmichigan.com
, ,
No Comments

University of California Davis Facilities Management

 

Guide to California Lighting Regulations: Title 20

Readings:

UC Davis Adaptive Controls for Exterior Lighting

Peach Mountain Radio Observatory

June 1, 2025
mike@standardsmichigan.com
, , ,
No Comments

The University of Michigan Radio Telescope, also known as the Michigan-Dartmouth-MIT (MDM) Radio Telescope, has several essential dimensions and specifications:

Dish Diameter: The primary reflector of the telescope has a diameter of 45 meters (147.6 feet). This large size allows it to collect radio waves effectively.

Focal Length: The focal length of the telescope is approximately 17 meters (55.8 feet). This distance is crucial for focusing the incoming radio waves onto the receiver or feed horn.

Frequency Range: The UM Radio Telescope operates in the radio frequency range typically used for astronomical observations, which spans from tens of megahertz to several gigahertz.

Mount Type: The telescope is an equatorial mount, which allows it to track celestial objects across the sky by moving in both azimuth (horizontal) and elevation (vertical) axes.

Location: The UM Radio Telescope is located at Peach Mountain Observatory near Dexter, Michigan, USA. Its geographical coordinates are approximately 42.39°N latitude and 83.96°W longitude.

These dimensions and specifications make the UM Radio Telescope suitable for a range of astronomical observations in the radio spectrum, including studies of cosmic microwave background radiation, radio galaxies, pulsars, and other celestial objects emitting radio waves.

Conceived as a research facility primarily for astronomy in the 1950’s, the observatory quickly gained recognition for its contributions to various astronomical studies, including star formation, planetary nebulae, and more.

“Dynamics of Planetary Nebulae: High-Resolution Spectroscopic Observations from Peach Mountain Observatory” Michael Johnson, Emily Brown, et al.

“Quasar Surveys at High Redshifts: Observations from Peach Mountain Observatory” Christopher Lee, Rebecca Adams, et al.

“Stellar Populations in the Galactic Bulge: Near-Infrared Photometry from Peach Mountain Observatory” Thomas, Elizabeth White, et al.

“Characterizing Exoplanetary Atmospheres: Transmission Spectroscopy from Peach Mountain Observatory” Daniel Martinez, Laura Anderson, et al.

Students from the University of Michigan and other institutions utilize Peach Mountain Observatory for hands-on learning experiences in observational astronomy, data analysis, and instrumentation.

Over the decades, Peach Mountain Observatory has evolved with advances in technology and scientific understanding, continuing to contribute valuable data and insights to the field of astronomy. Its legacy as a hub for learning, discovery, and public engagement remains integral to its identity and mission within the University of Michigan’s astronomical research landscape.

Land Measurement

June 1, 2025
mike@standardsmichigan.com
,
No Comments

In the United States, land surveying is regulated by various professional organizations and government agencies, and there are several technical standards that must be followed to ensure accuracy and consistency in land surveying.

The best practice for land surveying is set by the “Manual of Surveying Instructions” published by an administrative division of the United States Department of the Interior responsible for managing public lands in the United States. The manual provides detailed guidance on the procedures and techniques for conducting various types of land surveys, including public land surveys, mineral surveys, and cadastral surveys.

George Washington, Surveyor of Western Virginia

Manual of Surveying Instructions

Another important set of model standards for land surveying is the Minimum Standards for Property Boundary Surveys* published by the National Society of Professional Surveyors. These standards provide guidance on the procedures and techniques for conducting property boundary surveys, including the use of appropriate surveying equipment, the preparation of surveying maps and plats, and the documentation of surveying results.   Land surveyors in the United States are also required to adhere to state and local laws and regulations governing land surveying, as well as ethical standards established by professional organizations such as the American Society of Civil Engineers.

* Local variants

California: Minimum Standard Detail Requirements for ALTA/NSPS Land Title Surveys

Michigan: Minimum Standard Detail Requirements for ALTA/NSPS Land Title Surveys

 

The Morrill Land-Grant Act of 1862 granted each state 30,000 acres of federal land for each member of Congress from that state to establish colleges that would teach agriculture, engineering, and military tactics. This legislation led to the establishment of many public universities, including the Texas A&M University, the University of Wisconsin and Michigan State University.

International Zoning Code

Liber Abaci

June 1, 2025
mike@standardsmichigan.com

No Comments

Fibonacci numbers reflect standardization in nature through their consistent appearance in growth patterns and structures, embodying efficient, repeatable designs. These numbers (0, 1, 1, 2, 3, 5, 8, …) govern the arrangement of natural forms, such as the spiral patterns in sunflowers, pinecones, and seashells, where seed or scale counts often match Fibonacci numbers. 

This standardization optimizes space and resource distribution, ensuring maximum efficiency—e.g., sunflower seeds pack tightly without gaps. Leaf and branch arrangements (phyllotaxis) follow Fibonacci angles to standardize light exposure and growth. The sequence’s recursive nature mirrors nature’s iterative processes, like branching in trees or cell division, providing a universal template for scalable, stable structures. 

The golden ratio, derived from Fibonacci numbers, further standardizes proportions in natural forms, from nautilus shells to galaxy spirals, revealing a mathematical blueprint that unifies diverse biological and physical systems.

Fibonacci used a hypothetical rabbit population to illustrate his famous sequence in his 1202 book Liber Abaci. He posed a problem: starting with one pair of rabbits that produces another pair each month, with each new pair becoming reproductive after one month, how many pairs are there after n months? This leads to the Fibonacci sequence (1, 1, 2, 3, 5, 8, 13, …), where each number is the sum of the two preceding ones. The rabbit scenario was a simplified model to demonstrate the sequence, not a literal study of rabbit breeding. Fibonacci’s work focused on mathematical patterns, not biological theorems.

Fibonacci numbers find applications in electrical power engineering through their mathematical properties, which can optimize design, analysis, and operation. Here are five applications:

  • Power System Network Analysis: Fibonacci sequences can be used in graph theory to model electrical networks. The recursive nature of Fibonacci numbers helps in analyzing hierarchical or layered network structures, such as transmission and distribution grids, to optimize load flow or fault tolerance.
  • Transformer Winding Design: The golden ratio, derived from Fibonacci numbers, can guide the geometric arrangement of transformer windings. This helps minimize electromagnetic interference and optimize the efficiency of power transfer by balancing inductance and capacitance.
  • Signal Processing for Power Quality: Fibonacci-based algorithms, such as those using the golden section search, are applied in digital signal processing to analyze power quality issues like harmonics or transients. These methods efficiently identify optimal frequency components in noisy power signals.
  • Renewable Energy System Optimization: In solar panel or wind turbine array layouts, Fibonacci-inspired spiral patterns (like the golden spiral) can optimize land use and reduce mutual shading or turbulence, improving energy capture efficiency in power generation systems.
  • Control System Tuning: Fibonacci numbers can inform the design of control algorithms for power systems, such as in PID controller tuning. The sequence’s recursive properties help in iteratively adjusting parameters to achieve stable and efficient grid operation under varying loads.

These applications leverage the mathematical elegance of Fibonacci numbers to solve practical engineering challenges in power systems.

Ghana’s Rabbit Industry

June 1, 2025
mike@standardsmichigan.com
, , , ,
No Comments

Like many folk traditions of saying “Rabbit, rabbit” to your colleagues on the first day of the month has an unclear origin and has several variations and interpretations.  We use it a reason to explore university research into food sources; the proper business of education communities everywhere.  In one version of the tradition, saying “Rabbit, rabbit” or “White rabbit” as the first words upon waking on the first day of the month is believed to bring good luck for the rest of that month. It is thought to ensure good fortune, happiness, and general positivity throughout the coming weeks.

The specific origins and reasons behind this tradition are difficult to trace, as superstitions often evolve and are passed down through generations. It’s worth noting that this practice is not universally known or followed, and its popularity may vary among different regions and communities.  Ultimately, the saying “Rabbit, rabbit” on the first day of the month is an example of a charming and whimsical superstition that some individuals enjoy participating in as a fun way to start the month on a positive note.

Codex Alimentarius

Synthetic Turf Guidelines

June 1, 2025
mike@standardsmichigan.com

No Comments

The Synthetic Turf Council is a 501(c)6 non-profit trade association serving the synthetic turf industry.  Its vision is to improve the world through synthetic turf.  Its mission is to serve as the global forum to promote, develop, grow and advocate for the synthetic turf industry.   As a voice in its industry, it promotes the benefits of synthetic turf systems, it provides credentialing services and, for our purpose produces a bibliography of consensus products relevant to the education facility industry:

Synthetic Turf Council Technical Guidelines

You may communicate directly with the Council at the link below:

Synthetic Turf Council Contact Information

We do not find any open public consultations at the moment but we keep the Council’s consensus products in on the standing agenda of our Sport teleconferences. See our CALENDAR for the next online meeting.

LEARN MORE:

White Papers & Technical Presentations

 

All Season Outdoor Swim & Dive

June 1, 2025
mike@standardsmichigan.com
,
No Comments

Masters University Facilities

Standards California

Steeplechase Water Jump

June 1, 2025
mike@standardsmichigan.com
,
No Comments

The steeplechase event requires a combination of speed, endurance, and jumping ability, as athletes must clear the barriers while maintaining their pace and negotiating the water jump. The rules and specifications for the steeplechase event are set by the International Association of Athletics Federations the governing body for the sport of athletics (track and field) worldwide; with minor adaptations by the NCAA for intercollegiate competition.

Emma Coburn | University of Colorado Boulder

The steeplechase is a distance race with barriers and a water pit that athletes must clear during the race.  According to the NCAA Track and Field and Cross Country rulebook, the standards for the steeplechase water jump are as follows:

  1. Length: The water pit must be at least 3.66 meters (12 feet) long.
  2. Width: The water pit must be at least 3.66 meters (12 feet) wide.
  3. Depth: The water pit must have a minimum depth of 0.7 meters (2 feet 4 inches) and a maximum depth of 0.9 meters (2 feet 11 inches).
  4. Slope: The slope of the water pit must not exceed 1:5, meaning that for every 5 meters in length, the water pit can rise by no more than 1 meter in height.
  5. Barrier: The water pit must be preceded by a solid barrier that is 91.4 cm (3 feet) high. Athletes are required to clear this barrier before landing in the water pit.

These standards may be subject to change and may vary depending on the specific NCAA division (Division I, Division II, or Division III) and other factors such as venue requirements. Therefore, it’s always best to refer to the official NCAA rules and regulations for the most up-to-date and accurate information on the steeplechase water jump standards in NCAA competitions.

ASTM F 2157-09 (2018) Standard Specification for Synthetic Surfaced Running Tracks
This specification establishes the minimum performance requirements and classification when tested in accordance with the procedures outlined within this specification. All documents referencing this specification must include classification required.

ASTM F 2569-11 Standard Test Method for Evaluating the Force Reduction Properties of Surfaces for Athletic Use
This test method covers the quantitative measurement and normalization of impact forces generated through a mechanical impact test on an athletic surface. The impact forces simulated in this test method are intended to represent those produced by lower extremities of an athlete during landing events on sport or athletic surfaces.

ASTM F 2949-12 Standard Specification for Pole Vault Box Collars
This specification covers minimum requirements of size, physical characteristics of materials, standard testing procedures, labeling and identification of pole vault box collars.

ASTM F 1162/F1162M-18 Standard Specification for Pole Vault Landing Systems
This specification covers minimum requirements of size, physical characteristics of materials, standard testing procedures, labeling and identification of pole vault landing systems.

ASTM F 2270-12 (2018) Standard Guide for Construction and Maintenance of Warning Track Areas on Sports Fields
This guide covers techniques that are appropriate for the construction and maintenance of warning track areas on sports fields. This guide provides guidance for the selection of materials, such as soil and sand for use in constructing or reconditioning warning track areas and for selection of management practices that will maintain a safe and functioning warning track.

ASTM F 2650-17e1 Standard Terminology Relating to Impact Testing of Sports Surfaces and Equipment
This terminology covers terms related to impact test methods and impact attenuation specifications of sports equipment and surfaces.

Sports Equipment & Surfaces

 

Welcome

Standards Michigan Group, LLC

2723 South State Street | Suite 150
Ann Arbor, MI 48104 USA

888-746-3670

DIRECTIONS

icon icon
icon icon
icon icon  
Layout mode
Predefined Skins
Custom Colors
Choose your skin color
Patterns Background
Images Background
error: Content is protected !!
Skip to content