AJ METRIC HANDBOOK PDF

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First published as AJ Metric Handbook by The Architectural Press Second edition Third edition First published as New Metric Handbook The Metric Handbook is the major handbook of planning and design information for architects and architecture students. Covering basic design data for all the. METRIC HANDBOOK Planning and Design Data EDITED BY David Adler of the Reed Elsevier plc group First published as AJ Metric Handbook by The.


Aj Metric Handbook Pdf

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AJ Metric Handbook Planning & Design data_Partpdf - Download as PDF File .pdf), Text File .txt) or read online. The Metric Handbook is the major handbook of planning and design data for architects and architecture students. Covering basic design data for all the major . Trove: Find and get Australian resources. Books, images, historic newspapers, maps, archives and more.

By using our site you accept the terms of our Cookie Policy. The Metric Handbook is the major handbook of planning and design data for architects and architecture students. Covering basic design data for all the major building types it is the ideal starting point for any project.

For each building type, the book gives the basic design requirements and all the principal dimensional data, and succinct guidance on how to use the information and what regulations the designer needs to be aware of.

As well as buildings the Metric Handbook deals with broader aspects of design such as materials, acoustics and lighting, and general design data on human dimensions and space requirements. The Metric Handbook really is the unique reference for solving everyday planning problems. Post Review. The JCT Contracts edition reflects new payment legislation and makes other changes which include: It provides both a straightforward overview of the key Back in print for the first time in years, the Watts Pocket Handbook renews its commitment to share industry knowledge by providing technical and I accept the terms of our Cookie Policy Accept.

RIBA Bookshops Unrivalled range of the best architecture, design and construction books from around the world. My Account Register Sign in. Basket My basket contains: Search Search Site Search Go. Contact Us Order by phone or for enquiries, call us on: Average Rating: The representation of the dimensional coordination framework should be consistent on all drawings.

On general location drawings a grid representing mm or a multiple of mm may be used.

Assembly details may use grids of or mm. Reference lines Reference lines or grids should be thin, to distinguish them from other, particularly constructional, lines.

Gridded paper and scales Table V gives the recommended range of scales for each type of drawing related to appropriate paper grid sizes. Scale and the increment represented by the grid should be indicated on all gridded sheets.

Dimension lines Different types of dimensions should be distinguished by the type of arrowhead, 1. Running dimensions should be set off from a datum, 1. The symbol at the datum should be as shown.

An arrowhead is sometimes used, but is not the preferred alternative 6. It is subject to setting- out deviations which affect the spaces required for assemblies of components; but this should have been allowed for in the design stage. A planning grid of face controlling lines, 1. The controlling dimensions for spacing structural elements on plan on axial lines are in multiples of mm Table VI.

AJ metric handbook

If a mm square grid is used then axial controlling lines will coincide with the grid, 1. Relating zones to a mm grid If widths of structural zones are multiples of mm, the grid is continuous, 1. If the zone is not a multiple of mm, however, the grid is interrupted by the dimension of that zone, 1.

This is referred to as a neutral zone. Notation, drawing office practice and dimensional coordination Table VI Sizing of zones and heights Key reference planes Range Multiples of size mm mm Horizontal controlling dimensions Widths of zones for columns and loadbearing walls m fast preference second preference Spacing of zones for columns and loadbearing walls From 1 Key reference planes, 1.

Aj metric handbook pdf

Sizes of zones indicated by key reference planes should be selected from Table VI. Where controlling or reference lines bound floor or roof soffits, deflection should be allowed for in the zone.

Vertical controlling dimensions Floor to ceiling heights 2 to to over Heights of zones for floors and roofs to over Floor to floor and roof heights to over Changes in level to above B C A B A C 1. They represent the overlaid grid which does not usually coincide with actual junction lines on the face of the building. They are indicated by open arrowheads. They are indicated by closed arrowheads. Tolerance and fit Joint sizes are critical. Degree of accuracy Designers should identify where fit is critical and where not, or they must assess: They may be uneconomic to produce, limiting the applications of the product to which they apply.

Works Regulation Act 6. Many appear in Chapter 46 of this handbook. In Britain, this involves seeking planning permission from the local authority in whose area the development is proposed. There are a number of circumstances under which permission is not required, and the local authority will, if asked, provide a certificate to that effect in each particular case.

Generally, permission will be required for: Building operations which affect only the interior of a building or which do not materially affect the external appearance of a building do not generally require planning permission. The exception to this is where works on Listed Buildings are involved. In this instance Listed Building Consent is required for both internal and external works, and always where demolition is involved, whether in part or whole. However, some changes from one class to another can be made without permission, e.

Changes permitted in this way are ones which would generally constitute an environmental improvement. The controls in these areas are generally similar to those elsewhere, except with regard to demolition and permitted development rights.

Furthermore, where permission is required, there is a duty that development must not harm the character or appearance of the Conservation Area i. Demolition of buildings or parts of buildings in a Conservation Area requires Conservation Area Consent. This means that some development can take place without permission from the local authority.

The removal of some or all of these rights can be undertaken by the local authority through the issuing of an Article 4 direction. Article 4 directions are generally made where some environmental harm would be caused if these rights were exercised e.

Consult the appropriate planning authority in each case to discover the local controls. Most permitted development rights Part 1: Part 2: Part 3: Part 4: Metric graduation and figuring of instruments for linear measurement BS However, some basic matters are dealt with in later chapters, principally the following: Inevitably it is bound up with statistics, as people vary considerably in most dimensions. Anthropometrics is of crucial importance to architects as the ultimate basis of the design of most buildings must be the size of the people using them.

Average dimensions for British adults are given in 2. This shape is totally definable by the two parameters, mean and standard deviation SD. The mean in this case is the average already discussed. For the purposes of the architect, the standard deviation can be taken as the difference from the mean within which 84 per cent of the population are included.

In each case it is the job of the architect to decide whether in fact this will be acceptable. Table II gives the principal dimensions as shown in 2.

When a survey of a non-cohesive group such as of mixed-age adolescents, or men and women together is taken, a normal distribution curve is not obtained. We cannot predict the percentile dimensions for these populations, and this is why the tables here and elsewhere segregate populations into groups. Within these groups the dimensions are calculable given the mean and the SD, using the formula: The y-axis plots the numbers of men in this example in a group who are the height given on the x-axis within certain limits.

In a normal distribution the average, the mean and the median are all equal 2. X p is the value of the dimension for the pth percentile z is a factor from Table I In the tables the standard deviation is not directly given, but may itself be calculated from the values of the 50th or mean and 95th percentiles: A doorway is to be designed to accommodate The height that will fulfil the In both cases the addition of a further 25 mm would be necessary to allow for footwear see Table III.

Increases due to clothing vary considerably but Table III gives the normally acceptable values.

Table IV gives the range of stature found in various countries. For most purposes other dimensions can be approximately derived by proportionality with Table II, but more accurate figures can be obtained from the References at the end of this chapter. Here proportionality may not give sufficient accuracy, and reference should be made to one of the references for other dimensions.

More significantly, the body tends to be less flexible in regard to adapting to dimensionally unfavourable situations. It is therefore more important that design allows for elderly people where that is appropriate, accepting that younger people may be slightly disadvantaged. Table VI gives dimensions for people between the ages of 65 and Men Women Percentiles Percentiles 5th 50th 95th 5th 50th 95th Standing 1 Stature 95th: These figures are based on surveys of unclothed volunteers, and in using them allowances should be made for the wearing of clothes and shoes see Table III.

Such matters as the space required by people using motorcars, flying aeroplanes and operating machinery come under this heading. Many of the dimensions required for this will be found in Table II. Many believe that this can be caused by working on a surface that is too low, causing stooping. Both when standing and sitting to work, it is important that the worktop should be as fo11ows: Since women are generally shorter in stature than men, the heights of these respective surfaces have tended to reinforce the traditional roles of the sexes: It is possible in factories to provide small moveable platforms to assist women workers, but this type of solution is not available where the worktop is too low for the user.

It can be seen that the standard kitchen worktop height of mm actually seems to suit no-one. The surprising thing is that mm is uncomfortable for 84 per cent of all women! It is customary for sinks to be set into worktops, or fitted with their rims level with them.

Since the effective working surface in this case is the base of the sink, usually about mm lower than the rim, this Basic design data 2.

These assume that the worktop is between 50 mm above and mm below elbow height, and that shoes are worn further worsens the situation. It is recommended that sink surrounds should be fitted at least 75 mm above normal worktop height. This can be in a shop, restaurant or public house, or be a reception counter in an office or a hotel. There is often no good reason why the same height is needed on each side, and it is common for the non-public side to be higher than the other.

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Details of such can be found in the appropriate specialist chapters. Desks for typewriters and word processors where the working min if more than one person serving min if one person only 2. Chairs for sitting workers are now by legislation required to provide for vertical adjustment so that each individual can find the right relationship with the worktop.

However, it is important that the feet remain in contact with the ground, and where this is not possible, footrests should be provided. People often find working at a screen tiring to the eyes. Most VDUs are placed at or above eye level so that normal bifocals do not help. This permits the VDU to be placed between to mm distant from the user. Something frequently forgotten is the need for easy access to certain areas.

It is reasonable to assume that people employed on maintenance work will be sufficiently agile and not greatly above average size. The dimensions shown in 2. The principal disabilities of concern to the architect are those that mean the person has to use a wheelchair for most or all of the time.

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That person is handicapped by this in two significant ways: While people in wheelchairs constitute only about one quarter of one per cent of the population, society has rightly decided that the design of most buildings should take their needs into account. There are other forms of disability that are of importance to the building designer.

Provision for blind people needs to be made in the design of signs, raised letters being preferable to Braille, particularly in lifts. Lifts should ideally provide audible as well as visual indication of floor level. However, most such ramps are difficult to use, both in mounting and in descending.

Except for very short ramps less than 0. For a rise of only mm, therefore, a good ramp would take up a considerable area, 2. The use of a chair lift or of ordinary lifts is therefore often preferable to a ramp, although these suffer from the need for adequate maintenance, and problems arise when they break down.

Details of lifts designed for use by elderly and disabled people are given in Chapter 5. The width of a corridor should not be less than mm for a self-propelled wheelchair, or 1. Basic design data 2.

These dimensions and those in 2. This determines the minimum size of lift cars and circulation spaces in rooms. External doors should preferably be mm, although the mm size has a clear opening just wide enough for most chairs. Where a door opens off a corridor, it may be difficult for a wheelchair to turn sufficiently to go through a minimum width doorway unless the corridor is wide enough.

Where double or single swing doors are used these can be difficult for wheelchair users to open. In certain circumstances, sliding doors can be easiest and are often fitted in housing converted or specially built for wheelchair users. In blocks of flats, offices, etc. These are not only difficult for wheelchair users, but often also for elderly, ambulant disabled and even people with prams.

Consideration should be given to fitting such doors with mechanical opening and closing systems. Other doors often give problems to people in wheelchairs and elderly people with limited strength.

The doors to lavatories designed for disabled people can be particularly difficult. As a rule, However, such people vary greatly. Most people use them for a short time following an accident, and will be inexpert in their use. Users fall into two broad groups: The former can usually negotiate most obstacles such as steps and staircases. However, those who can use only one leg require a handhold wherever there are steps, even a single step at a building threshold. There is little need for this to be provided for them on both sides as two good arms are needed to use crutches.

However, elderly people may also need handholds, and many of these are only able to use one of their hands. Crutch users often find ramps more of a problem than steps. Ideally, all wheelchair ramps should be adjacent to supplementary steps as in 2.

There are a very small number of people who are so large that it is difficult to pass through a narrow doorway. A single door other than a cupboard should not be narrower than a mm doorset with a clear opening width of mm.

In certain buildings such as football stadia, deliberately narrow doorways are used to ensure control over entry. In these cases, and also where turnstiles are used, additional provision for large people should be made. Waiting areas, per cent standing, no cross-flows e.

A very small number of oversize seats or benches could be provided, or a loose seat of appropriate size could be used in a position normally occupied by a wheelchair. Table IX Flow capacities of corridors and staircases General design purposes People moving at good walking pace 1. These are covered in Chapter Increasingly, others relate to the needs of disabled people.

For lifts and escalators see Chapter 5. As a guide to assessing space allowances, the areas listed in Table VII may be used: Some examples of space allowances from Germany are given in 2. The preferred form and dimensions of steps for ambulant disabled and elderly people are shown in 2.

The formula for most staircases of twice the rise plus the going lies between and mm will give a suitable relationship. The rise should not exceed mm, and the going should not be less than mm.

Table VII Minimum areas per person in various types of buildings Occupancy Area per person m 2 Assembly halls closely seated Dance halls Restaurants dining areas Retail shops and showrooms 0. Table XI Design of staircases This table is constructed on the following bases: Rise r is between 75 mm minimum and mm maximum.

Going g is greater than mm minimum. In each box the figures represent: One Continental source recommends that twice the rise plus the going should lie between and mm. Table X summarises the various statutory requirements for internal staircases. Table XI covers the design of common types of staircases. External stairs and steps should not be designed to internal standards, as they will often appear to be precipitous.

See Chapter 6 for these. If the staircase is less than 1 m wide they are not mandatory on both sides, but should if possible be so provided to allow for arthritic hands.

The top of the handrail should be between and mm above the pitch line, landing 2. It is important, particularly for users of crutches, that they should extend at least one tread depth beyond the last riser at both top and bottom of each flight. In a multi-flight staircase, the handrails should be as continuous as possible to assist blind people; they will deduce that a break in the rail indicates a doorway or other way off the stairs.

Where there are likely to be small children, an additional handrail at about mm high may be provided. Care should be taken to avoid designs that facilitate climbing over balustrades.British layout information on a wide range of special laboratory Standards Institution.

Emigration to the US after the Nazi takeover in would have been the logical next step. Post a Review You need to be logged in to post a review Your Name: Part 47 - Appendices and index. The type. Educational and scientific laboratories. The book includes organizational diagrams, recommended minimum measurements for spaces, exact measurements of standard-sized furnishings, and treatises on standard building typologies such as dwellings high-rise and low-rise , factories, schools, and office buildings.

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