CAN CSA-A370-2014 Connectors for masonry (Fourth Edition Updated No 1 March 2015).pdf

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39、-A370-14(approved March 2015)National Standard of CanadaCAN/CSA-A370-14 Connectors for masonryMarch 2014 2014 CSA Group 1ContentsTechnical Committee on Masonry Connectors 4Preface 61 Scope 82 Reference publications 93 Definitions 104 Materials and practices 124.1 Materials 124.1.1 General 124.1.2 Fa

40、steners 124.2 Practices 134.2.1 General 134.2.2 Welding 134.2.3 Handling 134.2.4 Identification of wall ties 145 Corrosion protection 145.1 Effective life 145.2 Minimum level of corrosion protection 145.2.1 General 145.2.2 Level 1 corrosion protection 155.2.3 Level 2 corrosion protection 155.2.4 Lev

41、el 3 corrosion protection 155.2.5 Material compatibility 156 Thickness requirements 176.1 Individual connectors 176.2 Continuous connectors 177 Maximum spacing of connectors 187.1 Ties 187.1.1 Maximum spacing of ties 187.1.2 Spacings at openings 187.1.3 Spacings at wall top 187.1.4 Spacings at wall

42、base 187.1.5 Spacing for high-lift grouting and stone masonry 187.2 Wall anchors 197.2.1 General 197.2.2 Spacing for shear wall anchors 197.3 Partition anchors 197.3.1 General 197.3.2 Maximum spacing of horizontal lateral support anchors 197.3.3 Maximum spacing of vertical lateral support anchors 19

43、CAN/CSA-A370-14 Connectors for masonryMarch 2014 2014 CSA Group 28 Minimum strength of connectors 198.1 Ties 198.2 Wall anchors 208.3 Partition anchors 209 Design of connectors 209.1 General 209.2 Ultimate strength 209.2.1 General 209.2.2 Determination of ultimate strength 209.3 Serviceability 229.3

44、.1 Differential movements 229.3.2 Connector rigidity 229.3.3 Tie displacement and mechanical free play 229.3.4 Adjustable connectors 239.4 General design 239.4.1 Design method 239.4.2 Limit states design 249.5 Structural integrity 2410 Prescriptive connectors 2510.1 Connector thickness 2510.2 Connec

45、tor spacing 2510.3 Connector strength and seviceability 2510.4 Cavity width 2610.4.1 Design width 2610.4.2 Constructed width 2610.5 Prescriptive ties 2610.5.1 Corrugated strip ties 2610.5.2 Z-wire ties 2710.5.3 Rectangular wire ties 2710.5.4 Continuous-welded ladder and truss ties/reinforcing 2810.5

46、.5 Dovetail anchor/ties and corrugated dovetail anchor/ties 2910.6 Anchors 3010.6.1 Bar anchors 3010.6.2 Bolt and rod anchors 3110.7 Fasteners 3210.7.1 General 3210.7.3 Fasteners for corrugated strip ties 3210.7.4 Nails 3210.7.5 Powder actuated fasteners 3211 Repair connectors 3211.1 Connector mater

47、ial 3211.2 Connector thickness 3211.3 Connector spacing 3311.4 Connector strength 3311.5 Connector design 3311.6 Determination of connector acceptability 33CAN/CSA-A370-14 Connectors for masonryMarch 2014 2014 CSA Group 311.6.1 General 3311.6.2 Field testing of connectors 3311.6.3 Method of testing

48、3412 Methods of testing connectors 3412.1 Design and development testing 3412.1.1 General 3412.1.2 Apparatus 3512.1.3 Test specimens 3512.1.4 Procedures 3612.1.5 Calculation of ultimate strength, displacement, and mechanical free play 3712.1.6 Report 3812.2 In situ connector testing 3912.3 Test for

49、zinc coating thickness 39Annex A (informative) Connector types and uses 43Annex B (informative) Typical connector details 49Annex C (informative) Corrosion of metal connectors 70Annex D (informative) Resistance to water penetration 80Annex E (normative) Annual driving rain indices for selected locations in Canada 81CAN/CSA-A370-14 Connectors for masonryMarch 2014 2014 CSA Group 4Technical Committee on MasonryConnectorsM. Hatzinikolas Fero Corporation,Edmonton, AlbertaRepresenting Producer InterestChairM.J. Wilson RDH Building Engineering Ltd,Victoria