Structural Timber Design (eBook)
416 Seiten
Ernst & Sohn (Verlag)
978-3-433-61157-9 (ISBN)
Timber construction has been one of the most innovative areas of the building industry for several years. The speed with which new products are introduced into practical application is almost breathtaking compared to the other construction materials in the building industry. As a result, timber construction is continuously increasing its market share in commercial buildings and hall structures, and even in multi-storey construction for residential and office buildings.
This book provides essential knowledge and skills required for the design, detailing, and construction of timber structures. Special emphasis is placed on the specific features of timber and wood-based materials compared to other construction materials. This concerns the numerous advantages, as e.g. the comparatively low weight, the good workability of the high-performance material and the large variety of assembling technologies, but also the challenges resulting from the material anisotropy and from the susceptibility to natural pests.
In each chapter the essential phenomena are explained first and then brought into connection with code regulations. This aims to support the basic understanding of the interrelations and dependencies in timber engineering, which is the fundamental basis of creative engineering.
Werner Seim is a professor for Timber Engineering and Building Rehabilitation at the University of Kassel, Germany, and also an engineer with more than 35 years of experience in design and assessment of timber structures. He holds a Civil Engineering Degree from the University of Stuttgart, received his PhD in 1994 at the Karlsruhe Institute for Technology KIT and conducted postdoctoral studies 1998 at the University of California UCSD, San Diego. His research is focussed on bracing systems for high-rise buildings, timber-concrete-composites and re-use of structures. He is member of several national and international scientific committees. He was invited as a Visiting Professor to UBC Vancouver, EPF Lausanne and FCBA Bordeaux. His commitment to teaching was rewarded in 2020 with the Hessian State Prize.
Symbols and Abbreviations
Latin Upper-case Letters
A | Section area, knottiness |
AC | Action combination |
Aef | Effective contact area, effective cross section (steel rod or rebar) |
Ak | Characteristic exceptional action |
Anet,t, Anet,v | Net area against tension and shear failure |
B | Bending stiffness, B = E·I |
C | Minimum stiffness of bracing elements |
Ecm | Mean modulus of elasticity for concrete |
Emean, E05 | Mean modulus of elasticity, 5% fractile of modulus of elasticity |
Ed | Effects of action, design value |
Ed,fi | Effects of action, design values in case of fire |
Ek | Effects of action, characteristic value |
(EI)ef | Effective stiffness of a composite beam |
F | Force |
F90,Rd | Capacity against tension perpendicular to the grain |
Fax,Rk | Characteristic axial tensile resistance of a single fastener |
Fbs,Rk | Characteristic capacity against block shear |
Fv,w,Rd | Design resistance of light frame wall element against horizontal loading |
Fc,0,d | Design compression force parallel to the grain |
Ftens,k | Characteristic tension capacity of a screw |
Ft,90,d | Design tensile force at the crack plane |
Fv,Ed | Design force applied to the connection; design horizontal force applied to the head of a wall |
Fv,Rk | Characteristic lateral resistance per shear plane of a single fastener |
ΔFv,Rk | Characteristic rope effect contribution to the lateral resistance per shear plane of a single fastener |
Fv,α,Rd | Design resistance for shear connector units |
Fv,α,Rdb | Design resistance of the bolt in a connection with shear plates |
Fv,α,Rdc | Design resistance of the shear plate |
Gmean, G05 | Mean shear modulus, 5% fractile of shear modulus |
Gk | Characteristic self-weight |
Gmean | Mean shear modulus |
GR,mean | Mean rolling shear modulus |
(GA)ef,xz | Effective shear stiffness for out-of-plane-loaded CLT panels |
(GA)ef,xy | Effective shear stiffness for in-plane-loaded CLT panels |
H | Altitude above sea level |
I | Torsional moment of inertia |
Ip | Polar moment of inertia |
Iy, Iz | Moment of inertia related to bending around y-axis and z-axis |
Ief,x, Ief,y | Effective moment of inertia for CLT sections related to stresses in the direction of x-axis and y-axis |
Kser, Ku | Slip modulus, stiffness of translational spring |
Kϕ | Stiffness of a rotational spring |
LDC | Load duration class |
LVL | Laminated veneer lumber |
M | Bending moment, shear centre |
Map,d | Design bending moment at the apex of a double-tapered beam |
Md | Design bending moment |
MD | Torsional moment |
Ms | Bending moment at the centre of a group of connectors |
Mtor | Torsional moment |
My,Rk | Characteristic yield moment of a fastener |
Nd | Design normal force |
Ns | Normal force at the centre of a group of connectors |
OSB | Oriented strand board |
PGA | Peak ground acceleration |
Qk | Characteristic transient action |
Qk,L | Characteristic action, life load |
Qk,S | Characteristic action, snow |
Qk,W | Characteristic action, wind |
Rd | Resistance, design value |
Rk | Resistance, characteristic value |
S | Centroid, soil amplification factor |
Sap,R | Maximum spectral acceleration |
Se, Sd | Spectral acceleration, elastic and design value |
Sy | Static moment related to bending around the y-axis |
T | Torsional stiffness, period |
ULS | Ultimate limit state |
V | Volume |
Vd | Design shear force |
Vle, Vre | Shear force at the left and right side resp. of the support |
Vred | Reduced shear force at the support area |
Vs | Shear force at the centre of a group of connectors |
Vz | Shear force in the z-direction |
Wy, Wz | Section modulus related to bending around y-axis and z-axis |
Wap,netto | Section modulus at the apex of a double-tapered beam, if necessary, considering a weakened cross section |
Wnet | Section modulus of weakened cross section |
Wres | Section modulus of residual cross section above or below an opening |
Latin Lower-case Letters
a | Length of rectangular opening or diameter of round opening, acceleration |
a1, a2 | Spacing parallel and perpendicular to the grain, coefficients for the calculation of the buckling length, protrusion at the contact area |
a3,c, a3,t | Unloaded and loaded end distance parallel to the grain |
a4,c, a4,t | Unloaded and loaded end distance perpendicular to the grain |
afi | Additional dimensions to reach a certain fire resistance for connections |
ar | Distance of ribs, width of a group of connectors |
b | Section width of a member, width of the contact area, length of a wall element |
bfi | Section width after fire exposure |
bnet | Net distance between studs of light frame element |
bw | Width of the web of a beam |
c | Reduction factor for slender walls, damping constant |
d | Diameter of a fastener |
dc | Diameter of a shear connector |
def | Charring depth |
dh | Diameter of the head or the washer |
di | Diameter of knot i |
dn | Diameter of a nail’s head |
dr | Diameter of a glued-in rod |
d0 | Zero strength layer for members under fire exposure |
f | Natural frequency |
fax,k | Characteristic withdrawal strength parameter |
fc,0,d | Design compression strength parallel to the... |
Erscheint lt. Verlag | 5.4.2024 |
---|---|
Sprache | englisch |
Themenwelt | Technik ► Bauwesen |
ISBN-10 | 3-433-61157-2 / 3433611572 |
ISBN-13 | 978-3-433-61157-9 / 9783433611579 |
Haben Sie eine Frage zum Produkt? |
Größe: 83,4 MB
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