Ruth Shilston RW RWDI Adaptation to Severe Weather Events - PowerPoint PPT Presentation

Ruth Shilston RW RWDI Adaptation to Severe Weather Events

Contents It is our responsibility as engineers to create buildings that are resilient to extreme events, both current and future ones. By attending this session, you will: • Find out how to manage flood risks, including managing risks to assets. • Understand the challenges of designing in extreme climates. • Obtain an overview of the UK Heatwave Plan and understand its implications to building and urban design. This presentation will cover • How do we understand the climate? • Design for extreme climates • Resilience Assessment of existing buildings

How do we understand the climate?

Designing for extreme climates?

46.3 SET 52.5 Qatar 2022 target 26°C 40.5 WBGT Heat risk 29.4°C Qatar 2022 target 26.0°C

How will our existing building stock adapt to a changing climate?

Prioritize Vulnerability Identify Actions Climate Data Collection Yes/No Assessment Analysis Analysis Make Site visits, Rank the recommendations recommendations and interviews, Assign probability Baseline & Remove irrelevant based on best practice place on timeline drawings, GIS and severity scales Forecasted or insignificant interactions

Weather Percent Parameter T ype Increase Maximum in One Day Extreme 152% Precipitation Mean Annual Daily Maximum 79% Maximum in One Day 152% Extreme Rain # of Days with more than 25mm -44% Maximum Daily Temp. 33% Extreme Heat # of Days more than 30°C 230% Minimum Daily Temp. -35% Extreme Cold # of Days less than -10°C -99% # of Days below 0°C -45% # of Degree Days Greater than 24°C 445% Degree Days # of Degree Days Greater than 0°C 41% # of Degree Days Less than 0°C (extra heating required) -85% Maximum (in °C) 19% Humidex Climate # of Days greater than 40°C Analysis 333% Average # of Storms per Year -23% Baseline & Average CAPE (convective energy Storms Forecasted potential) in One Year 7% Average EHI (combination if SRH and CAPE) in One Year 19% http://www1.toronto.ca/city_of_toronto/environment_and_energy/key_priorities/files/pdf/tfwcds-full-report.pdf

Data Collection Site visits, interviews, drawings, GIS Yes/No Analysis Remove irrelevant or insignificant interactions

Probability Likelihood of climate change • State of good repair • Redundancy • Historic Performance Vulnerability • Assessment Assign probability 1 2 3 4 5 6 7 and severity scales

Severity Damage to system • Productivity risk • Health risk • Vulnerability Assessment Assign probability 1 2 3 4 5 6 7 and severity scales

COMPONENTS & SYSTEMS Access Enclosure Elect. Enviro. Mech. Water Site Structure Security Heating Cooling Ventilation APPLICABILITY Temp. & Rain Freeze/Thaw Wind Snow & Ice Humidity Intensity Cycles Intensity 1 2 3 4 5 6 7 PROBABILITY 1 2 3 4 5 6 7 SEVERITY VULERNERABILITY 4

Identify Actions Make recommendations based on best practice

Any questions? cibse.org/b2plive @CIBSE #Build2Perform