Analysis and modelling of the seismic behaviour of high ... - Ingegneria

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4. SEISMIC RESPONSE OF PARTIAL-STRENGTH COMPOSITE JOINTS The center of the compression is assumed to be in line with the mid-thickness of the compression concrete slab (see Figure 4.31a). MOMENT-ROTATION CHARACTERISTIC FOR SAGGING BENDING MOMENT Components in compression Components in tension Components in bending Concrete Slab in compression Beam flange and web in compression Column web in compression Column web in tension Beam web in tension Bolt in tension Column flange in bending Interior end-plate in bending Exterior end-plate in bending MOMENT-ROTATION CHARACTERISTIC FOR HOGGING BENDING MOMENT Components in compression Components in tension Components in bending Beam flange and web in compression Column web in compression Column web in tension Beam web in tension Bolt in tension Longitudinal slab re-bars in tension Column flange in bending Interior end-plate in bending Table 4.5. The basic components identified in this design for sagging and hogging bending moment Moreover, the design moment resistance Mj,Rd of this rotational spring is determined for hogging moment from: M = F ⋅ z ( 4.27 ) j, Rd j t, j, Rd i 137
4. SEISMIC RESPONSE OF PARTIAL-STRENGTH COMPOSITE JOINTS where: 138 Ft,j,Rd is the effective design tension resistance of the row of reinforcing zj bars or bolts; is the distance from the component j in tension to the center of the compression. The centre of the compression is assumed to be in line with the mid-thickness of the compression flange of the connected beam (see Figure 4.31b). (a) (b) Figure 4.31. Moment resistance Mj,Rd calculation for: a) Sagging bending moment; b) Hogging bending moment Rotational Spring (M, ) kConnL Translational Spring (F, ) kweb Rotational Spring (M, ) kConnR kConnL Translational Spring (F, ) (a) (b) kweb Rotational Spring (M, ) kkConnL ConnR Figure 4.32. Joint configuration for: (a) Exterior joint with HEB 260 Column; (b) Interior joint with HEB 280 Column The effective design tension resistance of a bolt-row is taken as the smallest values of the tension resistances of the basic components (bolts in tension, column web in tension, column web in bending, end-plate in bending, beam web in
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Dipartimento di Ingegneria Meccanic
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UNIVERSITÀ DEGLI STUDI DI TRENTO D
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Ai miei genitori
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INDEX 1 INTRODUCTION...............
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INDEX iii 4.10.3 Results of the PsD
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1.1 Introduction 1 1 INTRODUCTION I
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1. INTRODUCTION imposes precise con
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1. INTRODUCTION joints whilst 2D mo
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7 2 DUCTILITY AND SEISMIC RESPONSE
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2. DUCTILITY AND SEISMIC RESPONSE O
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3. SEISMIC BEHAVIOUR OF BOLTED END
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5. SEISMIC BEHAVIOUR OF RC COLUMNS
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6. SUMMARY, CONCLUSIONS AND FUTURE
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