Download Anchorage in Concrete Construction, First edition by R. Eligehausen, R. Mallee, J. F. Silva(auth.) PDF

By R. Eligehausen, R. Mallee, J. F. Silva(auth.)

A entire 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 energy actuated fasteners in concrete. It describes intimately the fastening components in addition to their results and load-bearing capacities in cracked and non-cracked concrete. It extra specializes in corrosion behaviour, fireplace resistance and features with earthquakes and shocks. It finishes off with the layout of fastenings in line with 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 yankee 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 fireplace (pages 249–254):
Chapter 12 Corrosion of anchors (pages 255–258):
Chapter thirteen impact of fastenings at the capability of parts during which they're put in (pages 259–263):
Chapter 14 layout of fastenings (pages 265–342):

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Extra resources for Anchorage in Concrete Construction, First edition

Sample text

This lies roughly between 80 and 200 J/m2 (N/m) depending on concrete strength, maximum aggregate size, and type of aggregate. It is influenced by the same parameters that determine the tensile strength. Fig. 8 applies to rounded gravel concrete and illustrates the relationship between the fracture energy and maximum aggregate size (Fig. 8a) or concrete compressive strength (Fig. 8b). In concrete with bro- 0 a) 2 4 8 16 32 Maximum aggregate size [mm] Fracture energy Gf [N/mm] 200 150 100 CEB Model Code 1990 50 Maximum aggregate size 16 mm 0 0 b) 20 40 60 80 100 120 140 Concrete compressive strength fc [N/mm2] + Bending specimen 100 mm ▫ Bending specimen 150 mm × Tension specimen Fig.

Some plastic anchors are designed to accept a profiled nail instead of a screw. As these anchors generate relatively small expansion forces, their behaviour under load is particularly influenced by inaccuracies during installation. As a consequence, they are generally not permitted in Germany for the anchorage of facade support systems. Plastic anchors are permitted in many countries for the anchorage of facades and comparable a) b) c) Fig. 51 Plastic anchors for fastenings in autoclaved aerated concrete (Eligehausen, Mallée, Rehm (1997)) structural systems provided the anchors are used in a redundant fashion.

When the tensile strength in a given element was exceeded, a zero stress crack was initiated in that element, smeared across the width of the element. The assumed behaviour of concrete in tension matched assumption 2 in Fig. 10. Based on these investigations, Seghezzi (1986) described the failure of torque-controlled expansion anchors as follows (Fig. 11). A hydrostatic pressure condition in the concrete is established in a very small zone around the expansion shell of the anchor. In this region the concrete is severely crushed.

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