Building Structures 1 BUS1 Training - cvut.czpeople.fsv.cvut.cz/~lupisant/bus1_8.pdfTypes of...
Transcript of Building Structures 1 BUS1 Training - cvut.czpeople.fsv.cvut.cz/~lupisant/bus1_8.pdfTypes of...
![Page 1: Building Structures 1 BUS1 Training - cvut.czpeople.fsv.cvut.cz/~lupisant/bus1_8.pdfTypes of expansion joints 1 Volume changes •temperature fluctulation •moisture fluctulation](https://reader031.fdocuments.in/reader031/viewer/2022030507/5ab5aec67f8b9a156d8d2363/html5/thumbnails/1.jpg)
Building Structures 1
#8
Antonín Lupíšek
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Drawing #1: 3 variants of load bearing column system
with location of expansion joints
• scale 1:500 or 1:200
• dimensioning of expansion joints sections
• description of expansion joints
Drawing #2: part of plan and section in location of
expansion joint
• scale 1:100
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#1 example
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#1 example
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Drawing #2 Example
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Types of expansion joints 1
Volume changes
• temperature fluctulation
• moisture fluctulation (wooden structures)
• concrete shrinkage and creep
• chemical changes of materials
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Types of expansion joints 2
Settlement joints (differential settlement)
• diverse subsoil
• different foundation loading
• different foundation type
• additional building (different time of realization)
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Types of expansion joints 3
• Vibration transfer precaution (crane, lift)
• Other construction and/or technological
reasons
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EXPANSION JOINTS FOR VOLUME CHANGES
EXPANSION JOINTS ENABLING DIFFERENTIAL
SETTLEMENT
must continuously go through all load-bearing and all
connected non-load-bearing structures
with exception of foundation.
must continuously go through all load-bearing and all
connected non-load-bearing structures
including foundation.
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Thermal linear expansion
l = l α t
l ... linear expansion [m]
l ... element length [m]
α ... coefficient of linear expansion
12 * 10-6 K-1
t ... thermal variation (~ 35°C)
maximum expansion joint width 10 - 30 mm
l = l α t = ... < 30 mm
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Location of expansion joints
• change of shape
• bearing system orientation change
• different heights of buildings
• different loading
• heated / unheated part
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Location of expansion joints
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Principles of solution
• doubled structure
• one side movable support
• simply supported inner part
• cantilever structure
• shift of modular grid of load-bearing structure
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Examples
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Examples
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Examples
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Examples
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Task 1 - Drawing basics
• part of plan and section of typical floor
Task 2 - Load-bearing system
• 2 variants of structural system
• 2 variants of floor structures (formwork,
precasted structure)
• 2 complex details according to selected
bearing system
Task 3 - Expansion joints of load-bearing
structures
• 3 variants of load-bearing system with location
of expansion joints
• part of plan and section in location of
expansion joint credit in
your index
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Thanks for attention