Temperature & shrinkage effect on structural analysis: 1.Introduction:The deformation of structure can be occurred by stresses caused by external loads. But deformation & volume changes can also occur without any external loading. The most important of these are shrinkage & temperature effect. 2.Reasons for shrinkage: a.By evaporation of water. b.Drying of concrete. c.Increasing of temperature. 3.Temperature & Shrinkage effect: a.It may cause deleterious crack as in slabs,walls etc. b.In structure that are statically indeterminate & most concrete structure, it may cause large & harmful stresses. c.It may cause deformation of total structure. d.It may affect to the fixed joint. 4.Cracks due to temperature & shrinkage effect. 5.shrinkage crack. 6.Crack in wall. 7.Due to accident massive change in temperature of the structure causes the fall of twin tower. 8.Matter of concern during design: a. Careful during selection of material b.By analyzing previous weather report. c.By analyzing previous max temperature record. d. By predicting the future condition. e.The coefficient of thermal expansion & contraction should be within the allowable range. f.By increasing aggregate content. g.By adjusting water content. h.Careful curing is needed.

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PRESENTATION

2. PRESENTATION ON
TEMPERATURE & SHRINKAGE EFFECT ON
STRUCTURAL ANALYSIS

4. Introduction:
The deformation of structure can be
occurred by stresses caused by external
loads. But deformation & volume changes
can also occur without any external loading.
The most important of these are shrinkage
& temperature effect.

5. Structure mainly two types:
1.R.C.C Structure:
2. Steel Structure:

6. Reasons for shrinkage:
1.By evaporation of water.
2.Drying of concrete.
3.Increasing of temperature

7. Temperature & Shrinkage effect:
1.It may cause deleterious crack as in
slabs,walls etc.
2.In structure that are statically
indeterminate & most concrete structure, it
may cause large & harmful stresses.
3.It may cause deformation of total
structure.
4.It may affect to the fixed joint.

8. Cracks due to temperature &
shrinkage effect:

10. Crack in wall:

12. Shrinkage in an unrestrained reinforced
concrete member :

13. Shrinkage in a restrained reinforced
concrete member :

14. Due to accident massive change in
temperature of the structure causes
the fall of twin tower:

15. Matter of concern during
design:
1. Careful during selection of material
2.By analysing previous weather report.
3.By analysing previous max temperature record.
4. By predicting the future condition.
5.The coefficient of thermal expansion &
contraction should be within the allowable range.
6.By increasing aggregate content.
7.By adjusting water content.
8.Careful curing is needed.

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