By R. Eligehausen, R. Mallee, J. F. Silva(auth.)
A accomplished therapy of present fastening know-how utilizing inserts (anchor channels, headed stud), anchors (metal enlargement anchor, undercut anchor, bonded anchor, concrete screw and plastic anchor) in addition to strength actuated fasteners in concrete. It describes intimately the fastening parts in addition to their results and load-bearing capacities in cracked and non-cracked concrete. It extra specializes in corrosion behaviour, hearth resistance and features with earthquakes and shocks. It finishes off with the layout of fastenings in response to the eu Technical Approval guide (ETAG 001), the ultimate Draft of the CEN Technical Specification 'Design of fastenings to be used in concrete' and the yank criteria ACI 318-05, Appendix D and ACI 349-01, Appendix B.Content:
Chapter 1 creation (pages 1–4):
Chapter 2 Fastening structures (pages 5–31):
Chapter three rules (pages 33–64):
Chapter four Behaviour of headed studs, undercut anchors and steel growth anchors in non?cracked and cracked concrete (pages 65–162):
Chapter five Behaviour of cast?in anchor channels in non?cracked and cracked concrete (pages 163–179):
Chapter 6 Behaviour of bonded anchors in non?cracked and cracked concrete (pages 181–210):
Chapter 7 Behaviour of plastic anchors in non?cracked and cracked concrete (pages 211–222):
Chapter eight Behaviour of energy actuated fasteners in non?cracked and cracked concrete (pages 223–226):
Chapter nine Behaviour of screw anchors in non?cracked and cracked concrete (pages 227–235):
Chapter 10 Behaviour of anchors below seismic loading (pages 237–248):
Chapter eleven Behaviour of anchors in hearth (pages 249–254):
Chapter 12 Corrosion of anchors (pages 255–258):
Chapter thirteen impact of fastenings at the means of parts during which they're put in (pages 259–263):
Chapter 14 layout of fastenings (pages 265–342):
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Additional info for Anchorage in Concrete Construction, First edition
0 Relative crack length a/lc Fig. 14 Relative tension load as a function of relative crack length (Eligehausen, Sawade (1989)) Fig. 15 shows the calculated load-displacement curve. The curve measured in the test by Eligehausen, Sawade (1989) is included for comparison. Although measured and calculated 42 3 Principles N [kN] 150 Test Simulation 100 N 130 50 0 0 1 2 3 Fig. 15 Measured and numerically obtained load-displacement relationship for a headed stud loaded in tension (Ozbolt, Eligehausen (1990)) 4 5 Displacement [mm] Fig.
They are based on similar formulations as capsule systems. In addition hybrid systems are used which contain resin and cement as binding materials. The injection of the components into the drilled hole is accomplished with the aid of Bulk adhesives are typically mixed and delivered using a bulk adhesive mixer in accordance with the specified mix ratio. Bulk mixers require calibration and close monitoring to ensure that the mix ratio is correctly maintained. While a mix ratio that is outside of specified tolerances may still result in hardening of the adhesive components, the final bond strength in-situ will likely be affected.
51c consists of a cone, an expansion sleeve, and a nut and washer. A cylindrical hole is drilled and undercut with the help of a special drill operating without percussive action (Fig. 54). Afterwards, the anchor is inserted and expanded by tightening the nut, whereby the expansion sleeve expands into the undercut. The anchors depicted in Fig. 51 can generally be used only for pre-positioned applications, a) b) Fig. 55 Plastic anchor for in-place installation in autoclaved aerated concrete (Eligehausen, Mallée, Rehm (1997)) a) Plastic anchor and punch for forming hole b) Installed plastic anchor, hole formed with hammer drill since the diameter of the anchor body is greater than the hole in the part to be fastened.