BS 5268-2:1996
$215.11
Structural use of timber – Code of practice for permissible stress design, materials and workmanship
| Published By | Publication Date | Number of Pages |
| BSI | 1996 | 186 |
Provides guidance on the structural use of timber, glued laminated timber and wood based panels. Includes quality grade stresses, modification factors, joint design, testing procedures, workmanship, inspection and maintenance.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 1 | BRITISH STANDARD |
| 2 | Committees responsible for this British�Standard |
| 3 | Contents |
| 13 | General Scope References Definitions British grown timber connector connector axis end joint efficiency glued laminated member |
| 14 | grade stress horizontally glued laminated member load-sharing system member permissible stress principal member steel dowel strength class structural unit target size vertically glued laminated member |
| 15 | Symbols |
| 16 | Materials |
| 17 | Design considerations General Loading Accidental damage (including exceptional snow drift loads) |
| 18 | Service classes Moisture content |
| 19 | Duration of loading Section size Load-sharing systems Effective cross-section Structural members Structural frameworks |
| 20 | Floor and roof boarding |
| 21 | Timber General Timber specification Species Dimensions and geometrical properties |
| 22 | Grades |
| 23 | Grade stresses for strength classes and individual species General Service class 3 (wet exposure) stresses |
| 24 | Softwood combinations of species and visual grade which satisfy the requirements for various stre… |
| 25 | North American softwood species/grade combinations which satisfy the requirements for various str… |
| 26 | North American softwood/grade combinations which satisfy the requirements for various strength cl… |
| 27 | North American softwood species/grade combinations Tropical hardwoods which satisfy the requirements for strength classes given in BS�EN 338 when gr… Temperate hardwoods which satisfy the requirements for strength classes graded to BS�5756 |
| 28 | Grade stresses and moduli of elasticity for various strength classes: for service classes�1 and�2 |
| 29 | Grade stresses for softwoods graded in accordance with BS 4978: for service classes�1 and�2 |
| 30 | Grade stresses for Canadian softwoods graded in accordance with NLGA rules: for service classes�1… |
| 31 | Grade stresses for Canadian softwoods graded in accordance with NLGA rules: for service classes�1… |
| 32 | Grade stresses for USA softwoods graded in accordance with NGRDL rules: for service classes 1 and 2 |
| 33 | Grade stresses for USA softwoods graded in accordance with NGRDL rules: for service classes 1 and 2 |
| 34 | Grade stresses for North American softwoods graded in accordance with North American MSR rules:�f… |
| 35 | Grade stresses for North American softwoods graded in accordance with North American MSR rules: f… |
| 36 | Grade stresses for tropical hardwoods graded in accordance with BS�5756 rules: for service classe… Grade stresses for temperate hardwoods graded in accordance with BS�5756 rules: for services clas… |
| 37 | Modification factor Additional properties Duration of loading Modification factor |
| 38 | Load-sharing systems Flexural members General Length and position of bearing Position of end bearing |
| 39 | Modification factor Effective span Shear at notched ends |
| 40 | Notched beams Form factor Depth factor |
| 41 | Deflection and stiffness Lateral support Maximum depth to breadth ratios |
| 42 | Notched beams Built-up beams Trimmer joists and lintels |
| 43 | Compression members General Size factors Effective length Effective length of compression members Slenderness ratio |
| 44 | Members subject to axial compression (without bending) Members subject to axial compression and bending |
| 46 | Notching and drilling Spaced columns Packs for spaced columns |
| 47 | Permissible stresses for spaced columns Modification factor |
| 48 | Compression members in triangulated frameworks Tension members General Width factor |
| 49 | Members subject to axial tension and bending |
| 51 | Glued laminated timber General Grade stresses for horizontally glued laminated members Grade stresses for vertically glued laminated beams |
| 52 | Glued end joints in glued laminated timber Modification factors |
| 53 | Modification factors Modification factors Glued laminated flexural members General Camber Curved glued laminated beams |
| 54 | Pitched cambered softwood beams |
| 56 | Values of constants for determining radial stresses in pitched cambered softwood�beams Glued laminated compression members |
| 57 | Glued laminated tension members Pitched cambered beam |
| 59 | Plywood General Durability |
| 60 | Dimensions and section properties Section properties of American construction and industrial plywood: sanded |
| 61 | Section properties of Canadian Douglas fir and softwood plywood: unsanded Section properties of Finnish birch plywood: sanded |
| 62 | Section properties of Finnish birch-faced plywood: sanded Section properties of Finnish conifer plywood: sanded |
| 63 | Section properties of Swedish softwood plywood: unsanded Section properties of Swedish softwood plywood: sanded |
| 64 | Grades |
| 65 | Grade stresses and moduli Flexural members |
| 67 | Grade stresses and moduli for service classes�1 and�2 for American plywood: C-D grade Exposure 1 |
| 68 | Grade stresses and moduli for service classes�1 and�2 for American plywood: C-D grade Exposure 1 |
| 69 | Grade stresses and moduli for service classes 1 and 2 for American plywood: C-C. Exterior. Group … |
| 70 | Grade stresses and moduli for service classes 1 and 2 for American plywood: A-C and B-C. Exterior… |
| 71 | Grade stresses and moduli for service classes 1 and 2 for American plywood. Underlayment Exposure… |
| 72 | Grade stresses and moduli for service classes 1 and 2 for Canadian softwood plywood: select tight… |
| 73 | Grade stresses and moduli for service classes 1 and 2 for Canadian softwood plywood: select tight… |
| 74 | Grade stresses and moduli for service classes 1 and 2 for Canadian Douglas fir plywood: select ti… |
| 75 | Grade stresses and moduli for service classes 1 and 2 for Canadian Douglas fir plywood: select ti… |
| 76 | Grade stresses and moduli for service classes 1 and 2 for Finnish birch plywood�1.4�mm veneer. Sa… |
| 77 | Grade stresses and moduli for service classes�1 and�2 for Finnish conifer plywood�1.4�mm veneer. … |
| 78 | Grade stresses and moduli for service classes 1 and 2 for Finnish conifer plywood: thick veneer. … |
| 79 | Grade stresses and moduli for service classes 1 and 2 for Finnish combi plywood�1.4�mm veneer. Sa… |
| 80 | Grade stresses and moduli for service classes 1 and 2 for Finnish combi plywood: thick veneer. Sa… |
| 81 | Grade stresses and moduli for service classes 1 and 2 for Finnish mirror plywood�1.4 mm veneer. S… |
| 82 | Grade stresses and moduli for service classes 1 and 2 for Finnish twin plywood 1.4�mm veneer. Sanded |
| 83 | Grade stresses and moduli for service classes 1 and 2 for Swedish softwood plywood: P 30. Spruce…. |
| 85 | Tempered hardboard General Durability Dimensions and section properties Grades Grade stresses |
| 86 | Duration of loading |
| 87 | Flexural members |
| 89 | Joints General |
| 90 | Shear stress in the jointed timber Joint slip Anti-corrosion treatment Nailed joints General |
| 91 | Effective cross-section Nail spacing Timber-to-timber joints |
| 92 | Fastener slip moduli Minimum nail spacings |
| 93 | Basic single shear lateral loads for round wire nails in a timber-to-timber joint Basic withdrawal loads per millimetre of pointside penetration for smooth round wire nails driven… |
| 94 | Steel plate-to-timber joints Plywood-to-timber joints Tempered hardboard-to-timber joints |
| 95 | Particleboard-to-timber joints Basic single shear lateral loads for round wire nails in a plywood-to-timber joint |
| 97 | Basic single shear lateral loads for round wire nails in a tempered hardboard�to�timber joint |
| 98 | Basic single shear lateral loads for round wire nails in a particleboard�to�timber joint |
| 99 | Permissible load for a joint Screwed joints General |
| 100 | Effective cross-section Screw spacing Timber-to-timber joints Steel plate-to-timber joints |
| 101 | Plywood-to-timber joints Basic withdrawal loads per millimetre of pointside penetration for screws turned�at�right angles … |
| 102 | Basic single shear lateral loads for screws inserted into pre-drilled holes in a plywood-to-timbe… |
| 103 | Basic single shear lateral loads for screws inserted into pre-drilled holes in a plywood-to-timbe… |
| 104 | Basic single shear lateral loads for screws inserted into pre-drilled holes in a plywood-to-timbe… |
| 105 | Permissible load for a joint Bolted and dowelled joints General Effective cross-section Bolt spacing |
| 106 | Timber-to-timber joints Steel plate-to-timber joints |
| 107 | Permissible load for a joint Steel dowel joints |
| 109 | Basic single shear loads for one�4.6 grade steel bolt or dowel in a two-member timber-to-timber j… |
| 110 | Basic single shear loads for one 4.6 grade steel bolt or dowel in a two-member timber-to-timber j… |
| 111 | Basic single shear loads for one 4.6 grade steel bolt or dowel in a two-member timber-to-timber j… |
| 112 | Basic single shear loads for one 4.6 grade steel bolt or dowel in a two-member timber-to-timber j… |
| 113 | Basic single shear loads for one 4.6 grade steel bolt or dowel in a two-member timber-to-timber j… |
| 114 | Basic single shear loads for one 4.6 grade steel bolt or dowel in a three-member timber-to-timber… |
| 115 | Basic single shear loads for one 4.6 grade steel bolt or dowel in a three-member timber-to-timber… |
| 116 | Basic single shear loads for one 4.6 grade steel bolt or dowel in a three-member timber-to-timber… |
| 117 | Basic single shear loads for one 4.6 grade steel bolt or dowel in a three-member timber-to-timber… |
| 118 | Basic single shear loads for one 4.6 grade steel bolt or dowel in a three-member timber-to-timber… |
| 119 | Basic single shear loads for one 4.6 grade steel bolt or dowel in a three-member timber-to-timber… |
| 120 | Minimum bolt spacings Toothed-plate connector joints General Effective cross-section Connector spacing |
| 122 | End distances for toothed-plate connectors Edge distances for toothed-plate connectors |
| 123 | Spacing modification factor, |
| 124 | Spacing modification factor, |
| 125 | Connector end and edge distances |
| 126 | Timber-to-timber joints Steel plate-to-timber joints |
| 127 | Permissible load for a joint |
| 128 | Basic loads for one toothed-plate connector unit |
| 129 | Basic loads for one toothed-plate connector unit |
| 130 | Basic loads for one toothed-plate connector unit |
| 131 | Unloaded end distance modification factor, |
| 132 | Loaded end distance modification factor, |
| 133 | Split-ring connector joints General Effective cross-section |
| 134 | Connector spacing Timber-to-timber joints End distances for split-ring and shear-plate connectors Edge distances for split-ring and shear-plate connectors |
| 135 | Spacing modification factor, |
| 136 | Spacing modification factor, |
| 137 | Basic loads for one split-ring connector unit |
| 138 | Permissible load for a joint |
| 139 | End distance modification factor, |
| 140 | Loaded edge distance modification factor, |
| 141 | Shear-plate connector joints General |
| 142 | Dimensions of circular recesses for shear-plate connector units conforming to�BS�1579 |
| 143 | Effective cross-section Connector spacing Timber-to-timber joints Steel plate-to-timber joints |
| 145 | Permissible load for a joint |
| 146 | Limiting values for permissible loads on one shear-plate connector unit Glued joints Laterally loaded joints |
| 147 | Finger joints |
| 149 | Characteristic bending strengths Minimum finger joint efficiencies required |
| 151 | Workmanship, inspection and maintenance General Moisture content General Measurement of moisture content Machining and preparation General Surfaces Treatment of cut surfaces Marking |
| 152 | Joints General Mechanical joints Connectored joints Glued joints Transportation, storage and handling Protection of unfixed materials and components Site storage Handling |
| 153 | Protection of installed materials and components Assembly and erection Treatments Preservative treatments Flame-retardant treatments Decorative treatments Anti-corrosive treatments Inspection Maintenance |
| 155 | Testing General Testing authority Information required Quality and manufacture of test structure Method of testing General |
| 156 | Pre-load Deflection test Strength test for timber and/or plywood structures |
| 157 | Strength test for partly or wholly tempered hardboard structures Strength test for partly or wholly particleboard structures |
| 158 | Acceptance Deflection of timber and/or plywood structures Strength of timber and/or plywood structures |
| 159 | Deflection of partly or wholly tempered hardboard structures Modification factor Strength of partly or wholly tempered hardboard structures |
| 160 | Deflection of partly or wholly particleboard structures Strength of partly or wholly particleboard structures Test report Use of tested structures |
| 163 | Wood particleboard General Durability Dimensions and section properties Grades and marking Grade stresses |
| 164 | Section properties of sanded particleboard Duration of loading Flexural members |
| 165 | Concentrated load capacity of type C5 wood particleboard |
| 166 | Modification factor Modification factors |
| 167 | (normative) Structural timbers (normative) Structural timbers Names and densities of some structural softwoods |
| 168 | Names and densities of some structural softwoods |
| 169 | Names and densities of some structural hardwoods |
| 170 | (normative) Modification factor for compression members (normative) Modification factor for compression members |
| 171 | (normative) Efficiency ratings of glued end joints in softwoods (normative) Efficiency ratings of glued end joints in softwoods (informative) Species of timber used in the manufacture of plywood (informative) Species of timber used in the manufacture of plywood American plywood Canadian plywood Finnish plywood |
| 172 | Swedish plywood Species used in American C-D and�C-C plywood |
| 173 | Species used in Canadian plywood Species used in Finnish plywood |
| 174 | (informative) Grade marks for plywood (informative) Grade marks for plywood American construction and industrial plywoods Canadian Douglas fir and softwood plywoods |
| 175 | Finnish birch, birch-faced and conifer plywoods |
| 176 | Swedish softwood plywood (informative) Modulus of elasticity and shear modulus for tempered hardboard (informative) Modulus of elasticity and shear modulus for tempered hardboard (informative) Derivation of the basic lateral load-carrying capacities referred to in Section 6 (informative) Derivation of the basic lateral load-carrying capacities referred to in Section 6 General |
| 177 | Nailed and screwed joints |
| 178 | Diagram indicating the dimensions Characteristic density of timber at�12�% moisture content Characteristic density of plywood at�12�% moisture content |
| 179 | Bolted and dowelled joints |
| 180 | Bolted/dowelled joints Connectored joints |
| 181 | (normative) Moisture content determination by oven dry method (normative) Moisture content determination by oven dry method (informative) Modulus of elasticity and shear modulus for particleboard (informative) Modulus of elasticity and shear modulus for particleboard |
