BS 5628-2:1995

Committees responsible
Foreword
Section 1. General
1.1 Scope
1.2 References
1.3 Definitions
1.4 Symbols
1.5 Alternative materials and methods of design and
      construction
Section 2. Material and components
2.1 General
2.2 Structural units
2.3 Steel
2.4 Damp-proof courses
2.5 Wall ties
2.6 Cements
2.7 Aggregate
2.8 Mortars
2.9 Concrete infill and grout
2.10 Colouring agents for mortar
2.11 Admixtures
Section 3. Design objectives and general recommendations
3.1 Basis of design
3.2 Stability
3.3 Loads
3.4 Structural properties and analysis
3.5 Partial safety factors
Section 4. Design of reinforced masonry
4.1 General
4.2 Reinforced masonry subjected to bending
4.3 Reinforced masonry subjected to a combination of
      vertical loading and bending
4.4 Reinforced masonry subjected to axial compressive
      loading
4.5 Reinforced masonry subjected to horizontal forces
      in the plane of the element
4.6 Detailing reinforced masonry
Section 5. Design of prestressed masonry
5.1 General
5.2 Design for the ultimate limit state
5.3 Design for the serviceability limit state
5.4 Design criteria for prestressing tendons
5.5 Detailing prestressed masonry
Section 6. Other design considerations
6.1 Durability
6.2 Fire resistance
6.3 Accommodation of movement
6.4 Spacing of wall ties
6.5 Drainage and waterproofing
6.6 D.p.cs and copings
Section 7. Work on site
7.1 Materials
7.2 Construction
7.3 Quality control
Annexes
A (normative)
   Design methods for walls incorporating bed joint
   reinforcement to enhance lateral load resistance
B (informative)
   Wall tie for high-lift cavity walls
C (informative)
   Estimation of deflection
D (normative)
   Method for determination of characteristic strength
   of brick masonry,fk
E (informative)
   Durability recommendations for various construction
   types
Tables
1 Proportions and mean compressive strengths of mortar
2 Chloride content of mixes
3 Characteristic compressive strength, fk, of masonry
4 Characteristic tensile strength of reinforcing steel,
   fy
5 Elastic modulus for concrete infill, Ec
6 Partial safety factors, ymm, for strength of reinforced
   masonry in direct compression and bending: ultimate
   limit state
7 Partial safety factors ymv, ym, yms; ultimate limit
   state
8 Limiting ratios of span to effective depth for
   laterally-loaded walls
9 Limiting ratios of span to effective depth for beams
10 Values of the moment of resistance factor, Q, for
   various values of fk/ymm and lever arm factor, C
11 Effective height of walls and columns
12 Values of the coefficient j
13 Selection of reinforcement for durability
14 Minimum concrete cover for carbon steel reinforcement
D.1 Value of k
D.2 Value of reduction factor to allow for ratio h/t
E.1 Durability recommendations for various construction
     types
Figures
1 Characteristic compressive strength, fk, of masonry
2 Short-term design stress/strain curve for
   re-inforcement
3 Moment of resistance factor, Q
4 Hooks and bends
5 Typical short-term design stress/strain curves for
   normal and low relaxation tendons
6 Minimum concrete cover in pocket-type walls and in
   reinforced hollow blockwork walls
B.1 Wall tie for high-lift grouted-cavity wall
D.1 Typical prisms for determination of fk
Index
List of references