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built templatemovement-tolerancewith-tool

Thermal Movement Calc

Calculates the expected thermal movement of a facade or structural member from its length, temperature range, and coefficient of thermal expansion. The template uses the first-principles relationship delta L = alpha L delta T and applies an explicit allowance factor to size movement accommodation.

inputs

4 fields

context

3 archetypes

engine

with-tool

outputs

4 scored fields

contract fields

Parameter Map

4 inputs to 4 scored outputs

  • member_length_mm

    float

    Member length L

    500 to 60000mm

  • temperature_range_c

    float

    Total design temperature range delta T

    10 to 90C

  • coefficient_thermal_expansion_microstrain_c

    floatfrom archetypehidden in hard

    Coefficient of thermal expansion alpha

    4 to 30microstrain/C

  • joint_safety_factor

    float

    Allowance factor applied to calculated movement

    1 to 2
thermal_movement_mmtol 0.03

Total thermal movement over the design temperature range

expansion_movement_mmtol 0.03

Expansion movement from the neutral temperature

contraction_movement_mmtol 0.03

Contraction movement from the neutral temperature

accommodation_required_mmtol 0.03

Movement accommodation required after applying allowance factor

visibility contract

Difficulty Ladder

all_giveneasy

All parameters given for aluminium facade members

all fields visible
all_givenmedium

All parameters given across common facade and frame materials

all fields visible
partialhard

Material coefficient hidden but inferable from component description

coefficient_thermal_expansion_microstrain_c

scenario bands

Archetype Atlas

aluminium_facade_member

2 contexts

Aluminium facade mullion or rail

member_length_mm2500 to 9000
temperature_range_c35 to 70
coefficient_thermal_expansion_microstrain_c22 to 24
joint_safety_factor1.1 to 1.5

commercial-facade / transport-station-facade

steel_frame_member

2 contexts

Exposed steel frame member

member_length_mm3000 to 20000
temperature_range_c25 to 60
coefficient_thermal_expansion_microstrain_c11 to 13
joint_safety_factor1.1 to 1.4

industrial-platform / roof-framing

glass_panel_edge

2 contexts

Glass panel edge allowance check

member_length_mm1000 to 4500
temperature_range_c25 to 55
coefficient_thermal_expansion_microstrain_c8 to 10
joint_safety_factor1.2 to 1.6

curtain-wall-panel / atrium-glazing

rendered task

Generation Preview

commercial-facade-aluminium-facade-member-preview

difficulty
hard
visibility
partial
archetype
aluminium_facade_member
site context
commercial-facade
instruction excerptthermal-movement-calc_calc.py

visible fields

  • member_length_mm2500 to 9000 mm
  • temperature_range_c35 to 70 C
  • joint_safety_factor1.1 to 1.5

withheld schema

coefficient_thermal_expansion_microstrain_cthermal_movement_mmexpansion_movement_mmcontraction_movement_mmaccommodation_required_mm
Aluminium facade mullion or rail. commercial-facade. Required outputs: thermal_movement_mm, expansion_movement_mm, contraction_movement_mm, accommodation_required_mm