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NI-wide·Technical Booklet D Structure

Single family houses, annexes and small single storey buildings

NI-wide·Technical Booklet D Structure

This Technical Booklet, which takes effect on 31st October 2012, is one of a series that has been prepared by the Department of Finance and Personnel (the Department) for the purpose of providing prac

NI-wide·Technical Booklet D Structure

The guidance contained in this Technical Booklet relates only to the requirements of regulations 30 and 31. The work will also have to comply with all other relevant requirements of the Building Regul

NI-wide·Technical Booklet D Structure

Any building work which is subject to requirements imposed by Part A of the Building Regulations should be carried out in accordance with regulation 23 of those regulations. Guidance on meeting these

NI-wide·Technical Booklet D Structure

The Building Regulations are made for specific purposes, primarily securing the health, safety, welfare and convenience of people and for the conservation of fuel and power. Standards and technical ap

NI-wide·Technical Booklet D Structure

Where this Technical Booklet makes reference to a named standard, the relevant version of the standard is the one listed in the Appendix. However, if this version has been replaced or updated by the i

NI-wide·Technical Booklet D Structure

The diagrams in this Technical Booklet supplement the text. They do not show all the details of construction and are not intended to illustrate compliance with any other requirement of the Building Re

NI-wide·Technical Booklet D Structure

District councils have a duty to take account of the desirability to preserve the character of protected buildings when carrying out their functions under Building Regulations. Therefore, where work i

NI-wide·Technical Booklet D Structure

The provisions of this Technical Booklet relate to the requirements of Building Regulations and do not include measures which may be necessary to meet the requirements of other legislation. Such other

NI-wide·Technical Booklet D Structure

The Construction (Design and Management) Regulations (Northern Ireland) 2007 impose requirements which affect building design. These include, amongst other things, the need for coordination, co-operat

NI-wide·Technical Booklet D Structure

an indication of the proposed construction sequence, if this is not obvious to a competent contractor. This is particularly relevant to refurbishments and new basements to existing buildings.

NI-wide·Technical Booklet D Structure

Note that these regulations apply to non-domestic clients, designers and contractors no matter what the duration or size of the project.

NI-wide·Technical Booklet D Structure

The Workplace Regulations apply to the common parts of flats and similar buildings if people such as cleaners, wardens and caretakers are employed to work in these common parts. Where the requirements

NI-wide·Technical Booklet D Structure

A building shall be designed and constructed so that the combined dead, imposed and wind loads are sustained and transmitted to the ground, taking into account the nature of the ground— (a) safely; an

NI-wide·Technical Booklet D Structure

A building shall be designed and constructed so that in the event of damage occurring to any part of the building, the extent of any resulting collapse will not be disproportionate to the cause of the

NI-wide·Technical Booklet D Structure

It is the view of the Department that the requirements of regulation 30 in Part D will be met when the structure of a building is designed and constructed — (a) so as to ensure the safety of those peo

NI-wide·Technical Booklet D Structure

For all building types, following the recommendations given in the documents listed in paragraphs 2.2 to 2.9 should demonstrate compliance with the requirements of regulation 30 in Part D. However, wh

NI-wide·Technical Booklet D Structure

The safety of a structure depends on the successful combination of design and completed construction, particularly — (a) identification of hazards to which the structure is likely to be subjected and

NI-wide·Technical Booklet D Structure

Actions used in calculations should allow for possible dynamic, concentrated and peak load effects that may occur. The design should ensure that the effects of actions do not cause a situation of irre

NI-wide·Technical Booklet D Structure

For a single family house of not more than 3 storeys in height, an annex or a small single storey building, a designer may wish to follow the guidance given in Section 4 of this Technical Booklet to d

NI-wide·Technical Booklet D Structure

Part 4A of Section 4 provides guidance on the basic requirements for stability.

NI-wide·Technical Booklet D Structure

The guidance in Part 4B of Section 4 is concerned with various timber members. Provisions are given in relation to the strength, loadings, sizes and spacings of those timber members.

NI-wide·Technical Booklet D Structure

Part 4C of Section 4 provides guidance on the design of masonry walls. Provisions are given regarding conditions relating to the building, conditions relating to the wall and wall thickness.

NI-wide·Technical Booklet D Structure

Part 4D of Section 4 provides guidance on the proportions for masonry chimneys above the roof surface.

NI-wide·Technical Booklet D Structure

The guidance in Part 4E of Section 4 is concerned with the design of concrete strip foundations.

NI-wide·Technical Booklet D Structure

It is the view of the Department that the requirements of regulation 31 in Part D will be met when a building is designed and constructed so as to ensure the safety of people in or about the building.

NI-wide·Technical Booklet D Structure

For all building types, following the recommendations given in the documents listed in paragraph 2.10 should demonstrate compliance with the requirements of regulation 31 in Part D. Alternatively, fol

NI-wide·Technical Booklet D Structure

Section 3 gives the procedure to determine the measures required for ensuring that the building is sufficiently robust to sustain a limited extent of damage or failure, depending on the class of the b

NI-wide·Technical Booklet D Structure

The general rules in paragraph 4A.1 should be complied with when using Parts 4B and 4C of Section 4. Sections 3 and 4 may be used independently of each other.

NI-wide·Technical Booklet D Structure

Annex – a single storey adjunct to a house (e.g. a veranda, garage, tool shed, fuel store, lavatory etc.) with dimensions not greater than those given in paragraph 4C.40.

NI-wide·Technical Booklet D Structure

Buttressing wall – a wall designed and constructed to afford lateral support to another wall perpendicular to it, support being provided from the base to the top of the wall.

NI-wide·Technical Booklet D Structure

Cavity width – the horizontal distance between the two leaves of a cavity wall.

NI-wide·Technical Booklet D Structure

Compartment wall – a wall constructed as a compartment wall to meet the requirements of regulation 35(3) in Part E.

NI-wide·Technical Booklet D Structure

Dead load – the load due to the weight of all walls, permanent partitions, floors, roofs and finishes, including services, and all other permanent construction.

NI-wide·Technical Booklet D Structure

Dwelling – has the meaning assigned to it by regulation 2 in Part A of the Building Regulations.

NI-wide·Technical Booklet D Structure

Imposed load – the load assumed to be produced by the intended occupancy or use, including the weight of movable partitions, distributed, concentrated, impact, inertia and snow loads, but excluding wi

NI-wide·Technical Booklet D Structure

Pier – a member which forms an integral part of a wall, in the form of a thickened section at intervals along the wall so as to afford lateral support to the wall to which it is bonded or securely tie

NI-wide·Technical Booklet D Structure

Separating wall – a wall or part of a wall which is common to adjoining buildings, and constructed to meet the requirements of regulation 35(2) in Part E.

NI-wide·Technical Booklet D Structure

Small single storey building – a building that is not a dwelling having dimensions not greater than those given in paragraph 4C.40.

NI-wide·Technical Booklet D Structure

Spacing – the distance between the longitudinal centres of any 2 adjacent timber members of the same type, measured in the plane of floor, ceiling or roof structure of which the members form a part.

NI-wide·Technical Booklet D Structure

Span – the distance measured along the centre line of a member between the centres of any two adjacent bearings or supports. Note: the spans given in Part 4B of Section 4 for floor joists, rafters, p

NI-wide·Technical Booklet D Structure

Supported wall – a wall to which lateral support is afforded by a combination of buttressing walls, piers or chimneys acting in conjunction with floor(s) or roof.

NI-wide·Technical Booklet D Structure

Wind load – the load due to the effect of wind pressure or suction.

NI-wide·Technical Booklet D Structure

This Section is relevant to all building types and lists Codes and Standards for structural design and construction which if followed, should demonstrate compliance with the requirements of regulation

NI-wide·Technical Booklet D Structure

Eurocode 1 - Action on structures BS EN 1991-1-1(1). BS EN 1991-1-3(1). BS EN 1991-1-4(1).

NI-wide·Technical Booklet D Structure

Eurocode 2 - Design of concrete structures BS EN 1992-1-1(1). BS EN 1992-1-2(1).

NI-wide·Technical Booklet D Structure

Eurocode 3 - Design of steel structures BS EN 1993-1-1(1). BS EN 1993-1-2(1). BS EN 1993-1-3(1). BS EN 1993-1-5(1). BS EN 1993-1-8(1). BS EN 1993-1-10(1).

NI-wide·Technical Booklet D Structure

Eurocode 4 - Design of composite concrete and steel structures BS EN 1994-1-1(1). BS EN 1994-1-2(1).

NI-wide·Technical Booklet D Structure

BS EN 1995-1-1(1). BS EN 1995-1-2(1). (1) To be read in conjunction with the associated National Annex and BS EN 1990.

NI-wide·Technical Booklet D Structure

BS EN 1996-1-1(1). BS EN 1996-1-2(1). BS EN 1996-3(1). (1) To be read in conjunction with the associated National Annex and BS EN 1990.