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1. |
Record Nr. |
UNISA996212478703316 |
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Autore |
Goss Ralph |
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Titolo |
Goss's roofing ready reckoner [[electronic resource] ] : metric cutting and sizing tables for timber roof members |
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Pubbl/distr/stampa |
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Oxford ; ; Malden, Mass., : Blackwell, 2008 |
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ISBN |
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1-282-34225-8 |
9786612342257 |
0-470-69778-4 |
0-470-69798-9 |
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Edizione |
[4th ed.] |
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Descrizione fisica |
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1 online resource (194 p.) |
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Altri autori (Persone) |
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MindhamC. N (Chris N.) |
GossRalph |
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Disciplina |
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Soggetti |
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Roofs |
Carpentry - Mathematics |
Roofing |
Engineering mathematics - Formulae |
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Lingua di pubblicazione |
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Formato |
Materiale a stampa |
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Livello bibliografico |
Monografia |
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Note generali |
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Rev. ed. of: Roofing ready reckoner / Ralph Goss. 2001. |
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Nota di bibliografia |
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Includes bibliographical references (p. 177-181) and index. |
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Nota di contenuto |
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GOSS'S ROOFING READY RECKONER; CONTENTS; 1 Introduction; 2 Roofing terminology; 3 Calculating the size of timber members; Strength and section size calculation; How do we calculate the loading on the roof?; Timber member sizing design: example; 4 Calculating the length and cutting angles of timber members: data tables 5-75.; The pitch; Using the tables to cut a common rafter; Hip jack rafters; Hip rafters; Valley jack rafters; The ridge; Purlins; Metric calculation tables; 5 Wall plates - strapping and gable strapping; 6 Wind bracing and openings for dormers and roof windows |
Openings for dormers and roof windows7 Roofing metalwork and fixings; Nails, bolts and screws; 8 Roof coverings - felt, battens and tiles; Underlay; Battens; Insulation and ventilation; Choosing the roof covering; 9 Roof coverings - building detail drawings; Natural slates; Concrete interlocking tiles; Plain and peg tiles; Asphalt shingles; Metal tiles; 10 Tools and equipment; Obtaining information from the drawing; |
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To cut the roof; Setting up the roof structure; Roof coverings; 11 Health & safety considerations; Access to the roof; Basic principles |
Restoration and renovation of existing roof structuresNewly constructed roofs; The roof covering; Conclusion; Bibliography; Index |
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Sommario/riassunto |
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Goss's Roofing Ready Reckoner provides rafter dimensions for timber roofs of any span and pitch. Additional information is provided on wall plate and gable strapping, wind bracing, truss clips and other roofing metalwork, and tools and equipment.This new edition includes roof timber member design tables, information on warm and cold roofs, their ventilation and insulation, plus detailed drawings for tiling, slating and other roof coverings.Also of interestRoof Construction and Loft ConversionFourth EditionC. N. Mindham978 14051 3963 2 |
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2. |
Record Nr. |
UNINA9910135983303321 |
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Autore |
Lin Psang Dain |
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Titolo |
Advanced Geometrical Optics / / by Psang Dain Lin |
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Pubbl/distr/stampa |
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Singapore : , : Springer Nature Singapore : , : Imprint : Springer, , 2017 |
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ISBN |
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Edizione |
[1st ed. 2017.] |
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Descrizione fisica |
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1 online resource (XXIV, 460 p. 222 illus., 193 illus. in color.) |
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Collana |
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Progress in Optical Science and Photonics, , 2363-510X ; ; 4 |
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Disciplina |
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Soggetti |
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Electrodynamics |
Mathematical physics |
Quantum optics |
Lasers |
Classical Electrodynamics |
Theoretical, Mathematical and Computational Physics |
Quantum Optics |
Laser |
Mathematical Methods in Physics |
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Lingua di pubblicazione |
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Formato |
Materiale a stampa |
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Livello bibliografico |
Monografia |
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Nota di bibliografia |
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Includes bibliographical references at the end of each chapters. |
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Nota di contenuto |
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Mathematical Background -- Skew-Ray Tracing of Geometrical Optics |
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-- Geometrical Optical Model -- Ray tracing Equations for Paraxial Optics -- Cardinal Points and Image Equations -- Ray Aberrations -- Jacobian Matrix of Ray Ri with Respect to Incoming ray Ri-1 and Boundary Variable Vector Xi -- Jacobian Matrix of Boundary Variable Vector Xi¬ with Respect to System Variable Vector Xsys -- Prism Analysis -- Prism Design Based on Image Orientation -- Determination of Prism Reflectors to produce required image orientation -- Optically Stable Systems -- Point Spread Function, Caustic Surfaces and Modulation Transfer Function -- Optical Path Length and Its Jacobian Matrix -- Wavefront Aberration and Wavefront Shape -- Hessian Matrix of Ray Ri with Respect to Incoming ray Ri-1 and Boundary Variable Vector Xi -- Hessian Matrix of Boundary Variable Vector Xi with Respect to System Variable Vector Xsys -- Hessian Matrix of Optical Path Length. |
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Sommario/riassunto |
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This book computes the first- and second-order derivative matrices of skew ray and optical path length, while also providing an important mathematical tool for automatic optical design. This book consists of three parts. Part One reviews the basic theories of skew-ray tracing, paraxial optics and primary aberrations – essential reading that lays the foundation for the modeling work presented in the rest of this book. Part Two derives the Jacobian matrices of a ray and its optical path length. Although this issue is also addressed in other publications, they generally fail to consider all of the variables of a non-axially symmetrical system. The modeling work thus provides a more robust framework for the analysis and design of non-axially symmetrical systems such as prisms and head-up displays. Lastly, Part Three proposes a computational scheme for deriving the Hessian matrices of a ray and its optical path length, offering an effective means of determining an appropriate search direction when tuning the system variables in the system design process. |
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