Standardised Foundation Bolt Kits

Transcription

1 with cages Standardised Foundation Kits Over the last few years, eedi and the Australian Institute of Steel Construction, now the Australian Steel Institute [ASI], in a joint initiative, have worked to establish the standardisation of building column base plates and holding-down bolt for the Australian market. In the past, structural designers did not have the opportunity to select base plates and holding-down bolt conforming to recognised standard patterns that suited a major proportion of the range of the steel sections used for columns in Australia. Traditionally, these items have been custom made to suit each project. The eedi FootiPak range of products allows the designer to select pre-engineered, off-the-shelf kits of foundation bolts, complete with prefabricated cages and base plate templates to suit UB to 61UB, 7WB, UC to 31UC, 76CHS to 5CHS, 89x89 SHS to xshs, and 1x76RHS to xrhs sections. This rationalised range of FootiPak kits, available as stock items, provides a practical and economical alternative to custom made product for a majority of column base applications. Features Pre-engineered Practical size Published design details and Load Tables Available off-the-shelf Compact packaging in knock-down form Fully galvanised Foundation anchoring bolts included Hex nuts and flat washers included [ per bolt] Prefabricated WebLok ligature included Timber template included Simple to assemble Centre lines marked on template s can be turned to allow insertion into rebar cage, then returned to original location WebLok ligature can be repositioned without dis-assembling No welding required Non standard sizes available subject to quote Kit Components (typical bolt FootiPak) Kit Components for each kit 1 Steel template foundation anchoring bolts (in bolt kit) nuts and washers per bolt 1 Weblock ligature Installation guide 1

2 with cages Advantages Participant Structural Engineer Engineering Draftsperson Workshop Detailer Fabricator Builder Advantages Simple selection of suitable design details Load tables give reliable, quick and easy answers Simple reproduction of suitable design details gives quick and easy solution Practical standard design details Easy to detail and use standard items Readily available, economical stock items Cost-effective and practical design details Readily available on short lead times Transport in knock-down form, assemble on site Easily adjusted to avoid reinforcing and services Step 1 Step Step 3 First Notch WebLok Ligature Assemble bolts to template "U" Shaped Tabs Continue wrapping ligature around bolts. Step Step 5 "U" tabs aligned and engaged Ligatures can be adjusted up or down as needed s can be rotated to assist in installation 15

3 FootiPak Designation Number of s Standardised Foundation Kits for Open Sections [UB s and UC s] Nom Diameter Gauge S [] g S [] p To suit column sections Preferred Non - Preferred FPK M UC, UB, UB UB FPK M UC UB, UB FPK 11 M UB, UB FPK 11 M UC UB, 31UB FPK 1 M 31UB, 36UB, 1UB 6UB FPK M 1 1 UC, 31UC FPK 3 M 1 3 6UB, 53UB FPK 3 13 M UB, 7WB 53UB FootiPak Designation Number of s Standardised Foundation Kits for Hollow Sections [SHS, CHS and RHS] Nom Diameter Gauge S [] g S [] p To suit column sections FPK M 89CHS, 76CHS, 89SHS, 75SHS FPK M 176RHS, 5RHS FPK 1818 M RHS, 575RHS, 751RHS, 176RHS, 1CHS, 11CHS, 1CHS, SHS, 89SHS FPK M 5SH S FPK 1818 M 5RHS, 575RHS, 751RHS, 176RHS 1CHS, 11CHS, 1CHS, SHS, 89SHS FPK M 5SH S FPK 1818 M RHS, RHS, 6RHS, 5RHS, SHS FPK M RHS, SHS, 5SHS Note. 1. Four-bolt cages are preferred to provide support to columns during erection - refer to AS 388 Guidelines for the Erection of Building Steelwork.. are based on practical considerations of typical installation and erection requirements. 3. The FootiPak range of products is supplied to change without notice. Nom Diameter Length A [] Cog B [] Standardised Foundation Anchoring s Thread T [] Projection P [] Embedment Depth L [] d Edge Distance A [] e Design L oad Capacity Tension [] M M M M Note. [] 1. s have formed threads.. projections allow for nominal 5 grouting or mortar bedding under base plate, or nominal 75 concrete bedding under base plate. 3. Edge distances are recoended to allow holding- to develop full capacity in 5 MPa normal-class concrete.. Design load capacities have been determined to AS Steel Structures. 5. The cog lengths have been confirmed by detailed testing. The anchorage capacity has been shown to exceed the ultimate design capacities of Grade.6 holding-. 6. The FootiPak range of products is subject to change without notice. Non standard sizes available subject to quote

4 Foundation anchoring bolt for open section bare plates with bolts Foundation anchoring bolt for open section base plates with bolts Foundation anchoring bolt for hollow section base plates with bolts Foundation anchoring bolts Material Finish Grade.6 AS 1111 Galvanised AS/NZS 68 Nuts and Washers Material Finish Grade.6 AS 37 Galvanised AS 5 Foundation anchoring bolt for hollow section base plates with bolts WebLok Ligatures Material AS 1397/G Z75 Concrete Finish Galvanised T B Ae P Ld A Foundation anchoring bolt embedment lengths and minimum edge distances have been determined using the design model given for unreinforced concrete so as to exceed the ultimate design capacities of Grade.6 foundation anchoring bolts. For embedment lengths or edge distances less than these values, fully developed reinforcement must be provided to intercept potential cracking planes. Intersection of overlapping cracking zones has been considered in determining unreinforced concrete capacities for the actual bolt used. FootiPak (Reinforcement where required) 17

5 Standardised Foundation Kits for Open Sections Foundation Anchoring and Base Plate Selector Column Suggested Holding Down s Base Plate Design Load Capacities (AS ) Size FootiPak Gauge Length Width Thick Hole Strength Limit State Combined Actions Designation No. Size tp Compn. Tension Tension UC UC UC UC 31UC UB UB UB UB UB UB UB UB 31UB 31UB 36UB 1UB 6UB 6UB 53UB 53UB 61UB 7WB FPK FPK FPK11 FPK FPK FPK FPK FPK FPK11 FPK FPK11 FPK FPK11 FPK11 FPK1 FPK1 FPK1 FPK1 FPK13 FPK3 FPK313 FPK313 FPK313 M M M M M M M M M M M M M M M M M M M M M3 M3 M Note: 1) Design Load Capacities are applicable for pinned type base plates only where any induced bending moments are neglected ) Ends of columns are assumed to be cold sawn so that axial compression is transmitted by bearing. 3) holes are oversize as this has been shown to be most practical for typical installation and erection requirements. washers may be used under anchoring nuts to satisfy the requirements of AS CI ) forces resisted by holding- have been limited to half the design load capacity of the bolts and linear interaction has been assumed for combined tension and shear loads. This conservative approach reflects the lack of a clear consensus in current research on shear in holding-. 5) Larger shear forces may be resisted by suitable shear keys, or recessing the base plate into the footing. 6) The design model is based on the model detailed in A.I.S.C. Design of Stuctural Connections Section.II - Column Base Plate - Pinned Type Connection. 7) Design load capacities on column sections are based on the capacity of the web section only as the base plates are not detailed to extend to the outer extremities of the flanges in both directions. This conservative approach is used throughout the design model and yields design load capacities which exceed normal design requirements. 8) The yield line method of analysis given in the design model has been used exclusively for calculation of base plate tension capacities. Non standard sizes available subject to quote with holding with holding 18

6 Standardised Foundation Kits for Hollow Sections Foundation Anchoring and Base Plate Selector Column Size Suggested FootiPak Designation Holding Down s Diam. Gauge No. df sg sp Base Plate Length Width Thick tp Hole Design Load Capacities (AS ) Strength Limit State Combined Actions Compn. Tensn. Tensn. 76.1CHS 88.9CHS 11.6CHS 11.6CHS 11.3CHS 11.3CHS 139.7CHS 139.7CHS 5.1CHS 5.1CHS 89X89SHS XSHS XSHS 75X75SHS 89X89SHS XSHS 5X5SHS XSHS 1X76RHS 1X76RHS 7X51RHS 7X51RHS 5X75RHS 5X75RHS X5RHS X5RHS X5RHS X5RHS 15X76RHS XRHS XRHS XRHS Note: FPK FPK FPK1818 FPK1818 FPK1818 FPK1818 FPK1818 FPK1818 FPK FPK FPK1818 FPK1818 FPK1818 FPK FPK FPK1818 FPK FPK FPK FPK1818 FPK1818 FPK1818 FPK1818 FPK1818 FPK1818 FPK1818 FPK FPK1818 FPK1818 FPK1818 FPK1818 FPK ) Design Load Capacities are applicable for pinned type base plates only where any induced bending moments are neglected. ) Ends of columns are assumed to be cold sawn so that axial compression is transmitted by bearing. 3) holes are oversize as this has been shown to be most practical for typical installation and erection requirements. washers may be used under anchoring nuts to satisfy the requirements of AS CI ) forces resisted by holding- have been limited to half the design load capacity of the bolts and linear interaction has been assumed for combined tension and shear loads. This conservative approach reflects the lack of a clear consensus in current research on shear in holding-. 5) Larger shear forces may be resisted by suitable shear keys, or recessing the base plate into the footing. 6) Design load capacities of column sections are based on the capacity of the column section is calculated in accordance with Section 6 of AS. 7) The yield line method of analysis given in the design model has been used exclusively for calculation of base plate tension capacities Non standard sizes available subject to quote with holding with holding 19