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STRUCTURAL DESIGN - PART 12

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17. Load combination charts

The following tables list the maximum stresses of the arch and of the spandrels in all the load combinations considered.

We highlight that in two different load combinations the maximum compressive stresses in the crown region of the arch are not localised in the same section. The same yields for the springer regions. Moreover the maximum values at the extrados of the crown region and those at the intrados of the crown region do not occur in the same sections.

Load combination no. 1A		Stresses (kg/cm²)
Left springer region of the arch	extrados	- 5.37
Left springer region of the arch	intrados	- 7.12
Crown region of the arch	extrados	- 6.51
Crown region of the arch	intrados	- 6.69
Right springer region of the arch	extrados	- 5.06
Right springer region of the arch	intrados	- 6.72
Spandrel over the crown region	xxx	- 7.01
Wedge	left	-3.22
Wedge	right	-3.19

Load combination no. 1B		Stresses (kg/cm²)
Left springer region of the arch	extrados	- 6.20
Left springer region of the arch	intrados	- 7.88
Crown region of the arch	extrados	- 7.15
Crown region of the arch	intrados	- 7.45
Right springer region of the arch	extrados	- 6.02
Right springer region of the arch	intrados	- 7.59
Spandrel over the crown region	xxx	- 5.32
Wedge	left	-1.91
Wedge	right	-2.04

Load combination no. 2A		Stresses (kg/cm²)
Left springer region of the arch	extrados	- 5.32
Left springer region of the arch	intrados	- 7.05
Crown region of the arch	extrados	- 6.45
Crown region of the arch	intrados	- 6.56
Right springer region of the arch	extrados	- 4.62
Right springer region of the arch	intrados	- 6.07
Spandrel over the crown region	xxx	- 7.24
Wedge	left	-3.17
Wedge	right	-2.93

Load combination no. 2B		Stresses (kg/cm²)
Left springer region of the arch	extrados	- 6.24
Left springer region of the arch	intrados	- 7.86
Crown region of the arch	extrados	- 7.14
Crown region of the arch	intrados	- 7.33
Right springer region of the arch	extrados	- 5.61
Right springer region of the arch	intrados	- 6.89
Spandrel over the crown region	xxx	- 5.55
Wedge	left	-1.91
Wedge	right	-1.95

Load combination no. 3A		Stresses (kg/cm²)
Left springer region of the arch	extrados	- 7.53
Left springer region of the arch	intrados	- 9.61
Crown region of the arch	extrados	- 8.79
Crown region of the arch	intrados	- 9.03
Right springer region of the arch	extrados	- 6.92
Right springer region of the arch	intrados	- 9.07
Spandrel over the crown region	xxx	- 9.46
Wedge	left	-4.34
Wedge	right	-4.31

Load combination no. 3B		Stresses (kg/cm²)
Left springer region of the arch	extrados	- 8.41
Left springer region of the arch	intrados	- 10.63
Crown region of the arch	extrados	- 9.65
Crown region of the arch	intrados	- 10.09
Right springer region of the arch	extrados	- 8.13
Right springer region of the arch	intrados	- 10.25
Spandrel over the crown region	xxx	- 7.18
Wedge	left	-2.58
Wedge	right	-2.76

Load combination no. 4A		Stresses (kg/cm²)
Left springer region of the arch	extrados	-7.28
Left springer region of the arch	intrados	-9.35
Crown region of the arch	extrados	-8.77
Crown region of the arch	intrados	-9.40
Right springer region of the arch	extrados	-6.62
Right springer region of the arch	intrados	-7.98
Spandrel over the crown region	xxx	-9.90
Wedge	left	-4.26
Wedge	right	-3.93

Load combination no. 4B		Stresses (kg/cm²)
Left springer region of the arch	extrados	-8.64
Left springer region of the arch	intrados	-10.46
Crown region of the arch	extrados	-9.72
Crown region of the arch	intrados	-10.48
Right springer region of the arch	extrados	-7.93
Right springer region of the arch	intrados	-9.24
Spandrel over the crown region	xxx	-7.59
Wedge	left	-2.60
Wedge	right	-2.84

Load combination no. 5A		Stresses (kg/cm²)
Left springer region of the arch	extrados	- 9.58
Left springer region of the arch	intrados	- 8.14
Crown region of the arch	extrados	-11.38
Crown region of the arch	intrados	-23.79
Right springer region of the arch	extrados	- 8.62
Right springer region of the arch	intrados	- 6.92
Spandrel over the crown region	xxx	- 15.42
Wedge	left	-7.10
Wedge	right	-8.02

Load combination no. 5B		Stresses (kg/cm²)
Left springer region of the arch	extrados	- 10.0
Left springer region of the arch	intrados	- 8.43
Crown region of the arch	extrados	- 12.55
Crown region of the arch	intrados	- 27.79
Right springer region of the arch	extrados	- 9.34
Right springer region of the arch	intrados	- 7.34
Spandrel over the crown region	xxx	- 18.86
Wedge	left	-6.91
Wedge	right	-7.90

Load combination no. 6A		Stresses (kg/cm²)
Left springer region of the arch	extrados	- 8.0
Left springer region of the arch	intrados	- 13.29
Crown region of the arch	extrados	- 9.24
Crown region of the arch	intrados	- 10.58
Right springer region of the arch	extrados	- 8.28
Right springer region of the arch	intrados	- 13.63
Spandrel over the crown region	xxx	- 13.94
Wedge	left	-4.71
Wedge	right	-4.75

Load combination no. 6B		Stresses (kg/cm²)
Left springer region of the arch	extrados	- 8.56
Left springer region of the arch	intrados	- 14.67
Crown region of the arch	extrados	- 9.81
Crown region of the arch	intrados	- 11.20
Right springer region of the arch	extrados	- 8.97
Right springer region of the arch	intrados	- 15.32
Spandrel over the crown region	xxx	- 16.47
Wedge	left	-4.04
Wedge	right	-4.02

CREDITS:

Intellectual property of this report and of the design drawings is owned by the University of Florence - Department of Civil Engineering

author of the text: Prof.Eng. Andrea Vignoli � other contributes have been mentioned in related paragraphs

� - General Engineering Workgroup -

SOURCE:

Final Design Report

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