BS 4485-4:1996
Current
The latest, up-to-date edition.
Hardcopy , PDF
English
15-08-1996
Committees responsible
Foreword
Section 1. General
1.1 Scope
1.2 References
1.3 Definitions
1.4 Symbols
1.5 Materials and workmanship
1.6 Packing support structures
1.7 Packings, water distribution systems, eliminators
and cladding
1.8 Cooling tower fittings
1.9 Water retaining structures
1.10 Foundations and bases
Section 2. Hyperboloidal cooling towers (type 1 towers)
2.1 Basis of design
2.2 Loading
2.3 Design considerations
2.4 Construction
Section 3. Mechanical draught towers (type 2 towers)
3.1 Characteristic loads
3.2 Design considerations
Annexes
A (normative) Recommendations for stress graded
timber triangular section laths
B (normative) Guidance on the use of plastics
materials
C (informative) Wind tunnel testing
D (informative) Circumferential wind pressure
distribution for hyperboloidal towers
E (normative) Estimation of resonant stresses
F (informative) Derivation of natural frequencies of
hyperboloidal towers
Tables
1 Dimensional deviations of precast components
2 Coatings of metal components
3 Determination of lt and lp
4 Correction factors for stresses due to adjacent
structures
5 Minimum reinforcement in shell
A.1 Permissible knot size for a 38 mm x 38 mm lath
Figures
1 Pressure coefficient distribution for determination
of wind loading
2 Arrangement of reinforcement trimming for openings
in shells
3 Arrangement of reinforcement in the shell
A.1 Splay knot
A.2 Arris knot
A.3 Face knot
F.1 Typical finite element representation of cooling
tower with column supports
List of references
Access your standards online with a subscription
Features
-
Simple online access to standards, technical information and regulations.
-
Critical updates of standards and customisable alerts and notifications.
-
Multi-user online standards collection: secure, flexible and cost effective.