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FRAMING GUIDELINES Cutting, Notching, and Boring Lumber Joists Joist Size Maximum Maximum Maximum Hole Notch Depth End Notch 2X4 None None None
FRAMING GUIDELINES Cutting, Notching, and Boring Lumber Joists Joist Size Maximum Maximum Maximum Hole Notch Depth End Notch 2x4 None None None 2x6 11/2 7/8 13/8 2x8 23/8 11/4 17/8 2x10 3 11/2 23/8 2x12 33/4 17/8 27/8 In joists, never cut holes closer than 2 inches to joist edges, nor make them larger than 1/3 the depth of the joist. Also, don’t make notches in the middle third of a span, where the bending forces are greatest. They should also not be deeper than 1/6 the depth of the joist, or 1/4 the depth if the notch is at the end of the joist. Limit the length of notches to 1/3 of the joist’s depth. Use actual, not nominal, dimensions. (“Field Guide to Common Framing Errors,” 10/91) Hole-Cutting Rules for Wood I-Joists Min. Distance from Inside Face of Support to Near Edge of Hole Do not cut holes larger Distance between hole Depth TJI/Pro 2” 3” 4” 5” 6” edges must be 2x (min.) than 11/2" in cantilever length of largest hole; 91/2” 150 1’-0” 1’-6” 3’-0” 5’-0” 6’-6” applies also to 11/2" holes 250 1’-0” 2’-6” 4’-0” 5’-6” 7’-6” L 2 x L 117/8” 150 1’-0” 1’-0” 1’-0” 2’-0” 3’-0” 250 1’-0” 1’-0” 2’-0” 3’-0” 4’-6” 350 1’-0” 2’-0” 3’-0” 4’-6” 5’-6” 550 1’-0” 1’-6” 3’-0” 4’-6” 6’-0” 14” 250 1’-0” 1’-0” 1’-0” 1’-0” 1’-6” 350 1’-0” 1’-0” 1’-0” 1’-6” 3’-0” 550 1’-0” 1’-0” 1’-0” 2’-6” 4’-0” 11/2" holes can be cut 16” 250 1’-0” 1’-0” 1’-0” 1’-0” 1’-0” anywhere in the web (11/2" knockouts Leave 1/8" (min.) of 350 1’-0” 1’-0” 1’-0” 1’-0” 1’-0” provided 12" o.c.) web at top and Min. -
Truss Terminology
TRUSS TERMINOLOGY BEARING WIDTH The width dimension of the member OVERHANG The extension of the top chord beyond the providing support for the truss (usually 3 1/2” or 5 1/2”). heel joint. Bearing must occur at a truss joint location. PANEL The chord segment between two adjacent joints. CANTILEVER That structural portion of a truss which extends PANEL POINT The point of intersection of a chord with the beyond the support. The cantilever dimension is measured web or webs. from the outside face of the support to the heel joint. Note that the cantilever is different from the overhang. PEAK Highest point on a truss where the sloped top chords meet. CAMBER An upward vertical displacement built into a truss bottom chord to compensate for defl ection due to dead load. PLATE Either horizontal 2x member at the top of a stud wall offering bearing for trusses or a shortened form of connector CHORDS The outer members of a truss that defi ne the plate, depending on usage of the word. envelope or shape. PLUMB CUT Top chord cut to provide for vertical (plumb) TOP CHORD An inclined or horizontal member that establishes installation of fascia. the upper edge of a truss. This member is subjected to compressive and bending stresses. SCARF CUT For pitched trusses only – the sloping cut of upper portion of the bottom chord at the heel joint. BOTTOM CHORD The horizontal (and inclined, ie. scissor trusses) member defi ning the lower edge of a truss, carrying SLOPE (PITCH) The units of horizontal run, in one unit of ceiling loads where applicable. -
Pevsner's Architectural Glossary
Glossary pages new extra text:Layout 1 10/9/10 16:22 Page 1 PEVSNER’S ARCHITECTURAL GLOSSARY Glossary pages new extra text:Layout 1 10/9/10 16:22 Page 2 Nikolaus and Lola Pevsner, Hampton Court, in the gardens by Wren's east front, probably c. Glossary pages new extra text:Layout 1 10/9/10 16:22 Page 3 PEVSNER’S ARCHITECTURAL GLOSSARY Yale University Press New Haven and London Glossary pages new extra text:Layout 1 10/9/10 16:22 Page 4 Temple Street, New Haven Bedford Square, London www.pevsner.co.uk www.lookingatbuildings.org.uk www.yalebooks.co.uk www.yalebooks.com for Published by Yale University Press Copyright © Yale University, Printed by T.J. International, Padstow Set in Monotype Plantin All rights reserved. This book may not be reproduced in whole or in part, in any form (beyond that copying permitted by Sections and of the U.S. Copyright Law and except by reviewers for the public press), without written permission from the publishers Glossary pages new extra text:Layout 1 10/9/10 16:22 Page 5 CONTENTS GLOSSARY Glossary pages new extra text:Layout 1 10/9/10 16:22 Page 6 FOREWORD The first volumes of Nikolaus Pevsner’s Buildings of England series appeared in .The intention was to make available, county by county, a comprehensive guide to the notable architecture of every period from prehistory to the present day. Building types, details and other features that would not necessarily be familiar to the general reader were explained in a compact glossary, which in the first editions extended to some terms. -
Put the Pedal to the Metal CONTINUING EDUCATION
2 EDUCATIONAL-ADVERTISEMENT Photo courtesy of Alucobond/Connor Group/Daniel Lunghi Photography CONTINUING EDUCATION CONTINUING Put the Pedal to the Metal CONTINUING EDUCATION Metal roofing and wall systems’ longevity, recyclability, 1 AIA LU/HSW and compatibility with retrofits and rooftop solar Learning Objectives After reading this article, you should be able to: technology present an impressive sustainable scorecard 1. Define the primary advantages that metal and metal roofs offer in delivering a long- Sponsored by Metal Construction Association lasting, energy-efficient building enclosure. 2. Identify the predominant aspects of metal one of the three little pigs built a account of their sustainable attributes. “Many roofing systems that make them highly house out of metal, but it would have metal products in the construction industry compatible with rooftop solar technologies N been a good way to keep away the big, are manufactured with recycled materials,” he and life-cycle benefits. bad wolf. explains. Notably, “it’s an excellent reuse or 3. List key integrated building systems and Sturdy, strong, and sustainable metal walls repurposing of materials that might previously strategies for maximizing energy and and roof panels are known for their durable have ended up in a landfill.” performance savings with metal roofing and green features. Metal is almost unbeatable One-hundred percent recyclable, metal retrofits. among building materials for its recyclable walls and roofs can also be manufactured 4. Discuss case studies illustrating the sustainability of metal roofing and wall properties, and metal walls and roofs contrib- with 40 percent recycled steel. This figure is systems. ute to reduced energy consumption, as their especially impressive in light of the estimated well-known cool roofing properties reflect heat 11 million tons of asphalt shingles that end To receive AIA credit, you are required to read energy and absorb less heat, keeping buildings up in landfills. -
Glossary of Architectural Terms Apex
Glossary of Architectural Terms Apex: The highest point or peak in the gable Column: A vertical, cylindrical or square front. supporting member, usually with a classical Arcade: A range of spaces supported on piers capital. or columns, generally standing away from a wall Coping: The capping member of a wall or and often supporting a roof or upper story. parapet. Arch: A curved construction that spans an Construction: The act of adding to a structure opening and supports the weight above it. or the erection of a new principal or accessory Awning: Any roof like structure made of cloth, structure to a property or site. metal, or other material attached to a building Cornice: The horizontal projecting part crowning and erected over a window, doorway, etc., in the wall of a building. such a manner as to permit its being raised or Course: A horizontal layer or row of stones retracted to a position against the building, when or bricks in a wall. This can be projected or not in use. recessed. The orientation of bricks can vary. Bay: A compartment projecting from an exterior Cupola: A small structure on top of a roof or wall containing a window or set of windows. building. Bay Window: A window projecting from the Decorative Windows: Historic windows that body of a building. A “squared bay” has sides at possess special architectural value, or contribute right angles to the building; a “slanted bay” has to the building’s historic, cultural, or aesthetic slanted sides, also called an “octagonal” bay. If character. Decorative windows are those with segmental or semicircular in plan, it is a “bow” leaded glass, art glass, stained glass, beveled window. -
4.9 Roof Design Guidelines
4.9 Roof Design Guidelines 4.9.1 INTRODUCTION shingles and shakes as well as the detailing of the shingle roof differed according to regional practices. Commonly in urban areas, wooden roofs were replaced with more fire resistant materials, but in rural areas this was not a major concern. On many Victorian A weather-tight roof is basic in the country houses, the practice of wood preservation of a structure, regardless of its shingling survived the technological age, size, or design. In the system that allows a advances of metal roofing in the 19th building to work as a shelter, the roof sheds century, and near the turn of the century the rain, shades from the harsh sun, and enjoyed a full revival in its namesake, the buffers the weather. Shingle Style. The Bungalow styles in the 20th century assured wood shingles a During some periods in the history of place as one of the most fashionable, architecture, the roof imparts much of the domestic roofing materials. architectural character. It defines the style and contributes to the building's aesthetics. The hipped roofs of Georgian architecture, the turrets of Queen Anne and the graceful slopes of the Bungalow designs are examples of the use of roofing as a major design feature. But no matter how decorative the patterning or how compelling the form, the roof is a highly vulnerable element of a shelter that will inevitably fail. A poor or unmaintained roof will permit the accelerated deterioration of WOOD SHINGLES historic interior building materials - masonry, wood, plaster, paint - and will cause general Metal roofing in America is principally a disintegration of the basic structure. -
Room in Roof ('Rir') Trussed Rafters
PRODUCT DATA SHEET Sheet No.1 May 2007 ROOM IN ROOF (‘RIR’) TRUSSED RAFTERS The ‘Room-in-Roof’ (‘RiR’) or attic trussed Fig. 1 Typical 8 metre span conventional trussed rafter rafter is a simple means of providing the structural roof and floor in the same component. This offers considerable 35 x 97 rafter advantages over other forms of living roof construction: • There need be no restrictions on lower floor layouts since 40° the trusses can clear span on to external walls although greater spans and room widths can be achieved by Weight of truss approx 55kg 35 x 97 ceiling tie utilising internal loadbearing walls. • ‘RiR’ trussed rafters are computer designed and factory assembled units, resulting in better quality control. Fig. 2 Typical 8 metre span ‘Room in Roof’ trussed rafter • Complex, labour intensive site joints are not required. • ‘RiR’ trussed rafters can be erected quickly, offering cost savings and providing a weathertight shell earlier. 47 x 197 rafter • Freedom to plan the room layout within the roof space. • A complete structure is provided, ready to receive roof finishes, plaster board and floorboarding. 40° Weight of truss approx 125kg 47 x 197 ceiling joist Comparing an 8 metre span standard trussed rafter (see opposite) with an equivalent 8 metre span ‘RiR’ truss, the external members will increase in width and depth. There are two reasons for this: The ‘RiR’ truss supports approximately 60% more load than a standard truss of the same span and pitch. This difference in load is made up of plasterboard ceilings and wall construction, full superimposed floor loading and floor boarding. -
Trussed Rafter Technical Guide
TRUSSED RAFTERS have proved to be an efficient, safe and economical method for supporting roofs since their introduction into the UK in 1964. They are manufactured by specialised timber engineering companies, who supply to all sections of the construction industry. Developments have been extensive, and today complex roofscapes are easily formed with computer designed trussed rafters. With the continuing trend toward individualism in domestic house styling, let alone the reflection of this in new inner city estates, the facility to introduce variations to the standard designs is vital. The provision of many character differences by designing and then constructing L returns, doglegs and hips for example, satisfies the inherent need for individuality at affordable prices. Economical roofing solutions for many commercial, industrial and agricultural buildings; hospitals, army barracks and supermarket complexes, are achieved by the expeditious installation of trussed rafters. Experienced roof designers and trussed rafter manu- facturers are therefore in an ideal position to assist the architect or specifier in achieving affordable solutions throughout the building industry. Simply provide a brief sketch or description of that being considered, including alternatives, and we will do the rest. The whole roof is designed and specified using state-of-the-art computer aided technology supplied by Wolf Systems. We can also arrange for one of our specialists to visit and advise you. This technical manual highlights some of the basic structural arrangements and assembly information you may require. In addition, we can offer technical expertise and experience in a comprehensive advisory service to clients, from initial sketch to completed trussed rafters. 1 Technical Data Design Trusses are designed in accordance with the current Code of Practice, which is BS 5268: Part 3, and the relevant Building Regulations. -
Permanent Bracing Commentary
Commentary for Permanent Bracing of Metal Plate Connected Wood Trusses John E. Meeks, P.E., Original Author Reviewed by the Engineering Review Committee of the Wood Truss Council of America and the Technical Advisory Committee Wood Truss Council of America of the Truss Plate Institute One WTCA Center 6425 Normandy Lane • Madison, WI 53719-1133 608/274-4849 • 608/274-3329 (fax) www.woodtruss.com • [email protected] Copyright © 1999 Wood Truss Council of America COMMENTARY FOR PERMANENT BRACING OF METAL PLATE CONNECTED WOOD TRUSSES TABLE OF CONTENTS INTRODUCTION ......................................................................................................................................................... 1 DEFINITIONS ............................................................................................................................................................... 1 SCOPE ............................................................................................................................................................................. 2 GENERAL PROCEDURES .................................................................................................................................. 2 Roof or Floor Loads ............................................................................................................................................... 3 Architect and/or Engineer of Record - Building Designer .................................................................................... 3 Approval of Truss Submittals -
Description 1628-1633 Planter Gothic Cathedral. Spire. Chancel and Chapter House Added. 'Rising up Powerfully Above the Steps
Foyle Civic Trust St Columb’s Cathedral Living City Project 2 Map Reference C1 Address St Columb’s Cathedral Name St Columb’s Cathedral Map Reference C1 Plot Number 1 Listed Building yes Reference HB01/19/001 Grade A Conservation Area yes Reference historic city Building at Risk no Reference n/a Date of Construction 1628-1633 Original Use cathedral Present Use cathedral Description 1628-1633 Planter Gothic Cathedral. Spire. Chancel and Chapter House added. ‘Rising up powerfully above the steps of St Columb’s Court where the cathedral comes close to the walls of the court house, it can be seen best as a whole from SW, where its churchyard runs unimpeded by buildings up to the southernmost stretch of the city walls. For all the different dates the materials are the same: rubble schist walls with sandstone trim. The tower and steeple are typical of their date, though more lavish in scale than usual. Four-stage tower with thin clasping buttresses, regular string courses, and octagonal pinnacles that seem to be an early c19 attempt to catch the style of the original c17 church. The spire too has an odd feature in the roll mouldings of the arrises. Beyond the green gabled projections of Drew’s chapter house [Thomas Drew] and vestry – the latter on the site of the original s porch [this statement appears not to be accurate] – the s aisle of 1628 takes over, with late Gothic windows and curious quasi-classical buttresses. The windows are in groups of four lights, cusped, and set within a shallow segmental arch with a segmental hood mould above. -
Appendix G Training Manual
HOLMFIRTH CONSERVATION AREA APPRAISAL Appendix G Training manual 1 HOLMFIRTH CONSERVATION GROUP GUIDANCE FOR COMPLETION OF BUILDINGS SURVEY FORM (Amended 13 June 2016) CONTENTS Completion of Building Survey………………………………………………….. 2-4 Guidance for Authenticity Scoring……………………………………………… 5 Window Styles (as per Kirklees Conservation) Website)…………………………………........... 6 Door Styles (as per Kirklees Conservation Website) …………………………………………… 7 Building Extensions & Dormers (as per Kirklees Conservation Website) ……………………. 8-9 Glossary of Terms……………………………………………………………… 10 - 11 2 GUIDANCE FOR COMPLETION OF BUILDINGS SURVEY FORM 1. BUILDING INDENTIFICATION and How to use it when surveying BUILDING and PHOTO REF No Each property has been given a unique 3 letter reference, which is marked on the “Master Map”. This identifier will be used for all references to a specific building and its related photos Surveying will be allocated to volunteers in batches of between 15 and 35 buildings per volunteer. This may include garages and sheds. You will be provided with a map of the allocated properties to be surveyed, which will be an enlarged section of the conservation area map. The area to be surveyed will be outlined with a purple border. Use the map to identify the property being surveyed and enter its reference into the BUILDING and PHOTO REF No. box. NOTE: Buildings have been given their building ref. as if viewed from above. This means that in the case of “Over & Under” buildings eg some of properties in Norridge Bottom, the map will only show one identifier ref. In such cases you will need to complete surveys for both properties, entering the building ref. on the survey form but also adding a numerical ref. -
National Best Practices Manual for Building High Performance Schools
DAYLIGHTING AND WINDOWS Daylighting forms the cornerstone of resource efficient, high performance design for schools. Affecting individuals on both conscious and subconscious levels, it provides light to see the work environment, a natural rhythm that determines the cycles of days and seasons, and biological stimulation for hormones that regulate body systems and moods. In addition, it offers opportunities for natural ventilation and, if properly integrated with the electric lighting system, can provide tremendous energy savings. The Gentle, diffuse daylight permeates a classroom with both advantages of daylighting translate to higher sidelight and toplight. Note that all surfaces are painted performance in schools. Research has shown that white to distribute light more efficiently and reduce contrast glare. NREL/PIX 11392 children achieve significantly higher test scores in classrooms that are daylit than in those that are not,1 making daylighting one of the best building-related investments for the learning environment. This chapter provides an overview of daylighting and fenestration design. It also presents eight daylighting guidelines for specific sidelighting and toplighting schemes. View Windows (Guideline DL1) High Sidelighting—Clerestory (Guideline DL2) High Sidelighting—Clerestory with Light Shelf or Louvers (Guideline DL3) Classroom Daylighting—Wall Wash Toplighting (Guideline DL4) Central Toplighting (Guideline DL5) Patterned Toplighting (Guideline DL6) Linear Toplighting (Guideline DL7) Tubular Skylights (Guideline DL8) To fully daylight most spaces, the guidelines should be combined with each other or repeated as a pattern across the space. For example, Wall Wash Toplighting (Guideline DL4) on an interior wall could be combined with High Clerestory Sidelighting (Guideline DL2) and View Windows (Guideline DL1) on an 1 Heschong Mahone Group, “Daylighting in Schools—An Investigation into the Relationship between Daylighting and Human Performance,” prepared for Pacific Gas & Electric Company and funded by California utility customers, 1999.