A door is a hinged or otherwise movable barrier that allows ingress (entry) into and egress (exit) from an enclosure. The created opening in the wall is a doorway or portal. A door's essential and primary purpose is to provide security by controlling access to the doorway (portal). Conventionally, it is a panel that fits into the doorway of a building, room, or vehicle. Doors are generally made of a material suited to the door's task. They are commonly attached by hinges, but can move by other means, such as slides or counterbalancing.
A wall is a structure and a surface that defines an area; carries a load; provides security, shelter, or soundproofing; or, is decorative. There are many kinds of walls, including:
Physical security describes security measures that are designed to deny unauthorized access to facilities, equipment, and resources and to protect personnel and property from damage or harm. Physical security involves the use of multiple layers of interdependent systems that can include CCTV surveillance, security guards, protective barriers, locks, access control, perimeter intrusion detection, deterrent systems, fire protection, and other systems designed to protect persons and property.
The windshield or windscreen of an aircraft, car, bus, motorbike, truck, train, boat or streetcar is the front window, which provides visibility while protecting occupants from the elements. Modern windshields are generally made of laminated safety glass, a type of treated glass, which consists of, typically, two curved sheets of glass with a plastic layer laminated between them for safety, and bonded into the window frame.
The Alfred P. Murrah Federal Building was a United States federal government complex located at 200 N.W. 5th Street in downtown Oklahoma City, Oklahoma. On April 19, 1995, at 9:02 a.m. the building was the target of the Oklahoma City bombing by terrorists Timothy McVeigh and Terry Nichols, which killed 168 people. A third of the building collapsed seconds after the truck bomb detonated. The remains were demolished a month after the attack, and the Oklahoma City National Memorial was built on the site.
A curtain wall is an outer covering of a building in which the outer walls are non-structural, designed only to keep the weather out and the people in. Because the curtain wall façade carries no structural load beyond its own dead load weight, it can be made of lightweight materials. The wall transfers lateral wind loads upon it to the main building structure through connections at floors or columns of the building.
This page is a list of construction topics.
A security alarm is a system designed to detect intrusions, such as unauthorized entry, into a building or other areas, such as a home or school. Security alarms protect against burglary (theft) or property damage, as well as against intruders. Examples include personal systems, neighborhood security alerts, car alarms, and prisons.
The Fiat Idea is a car manufactured and marketed by Fiat from 2003 to 2012 over a single generation with one intermediate facelift. It is a five-passenger mini MPV with five doors. It has a front-engine, front-wheel drive layout.
The Special Protection Group (SPG) is an agency of the Government of India whose sole responsibility is protecting the Prime Minister of India and in some cases, his or her family. It was formed in 1988 by an Act of the Parliament of India. The SPG protects the Prime Minister at all times both in India and abroad, as well as the Prime Minister's immediate family members residing with them at their official residence. Family members, however, may decline security.
An awning or overhang is a secondary covering attached to the exterior wall of a building. It is typically composed of canvas woven of acrylic, cotton or polyester yarn, or vinyl laminated to polyester fabric that is stretched tightly over a light structure of aluminium, iron or steel, possibly wood or transparent material. The configuration of this structure is something of a truss, space frame or planar frame. Awnings are also often constructed of aluminium understructure with aluminium sheeting. These aluminium awnings are often used when a fabric awning is not a practical application where snow load as well as wind loads may be a factor.
![<span class="mw-page-title-main">Federal District Metro (Brazil)</span> Rapid transit system in the [[Federal District (Brazil)|Federal District]], [[Brazil]]](https://upload.wikimedia.org/wikipedia/commons/thumb/1/1a/Metro_DF_Galeria.jpg/320px-Metro_DF_Galeria.jpg)
The Federal District Metro is the rapid transit system of the Federal District, in Brazil. It is operated by Companhia do Metropolitano do Distrito Federal and was opened in 2001. Currently, Federal District's Metro has 24 stations on two lines, and it runs for 42.38 kilometers (26.33 mi).
Home security includes both the security hardware placed on a property and individuals' personal security practices. Security hardware includes doors, locks, alarm systems, lighting, motion detectors, and security camera systems. Personal security involves practices like ensuring doors are locked, alarms are activated, owning a Dog, windows are closed, and extra keys are not hidden outside.
Within the context of building construction and building codes, "occupancy" refers to the use, or intended use, of a building, or portion of a building, for the shelter or support of persons, animals or property. A closely related meaning is the number of units in such a building that are rented, leased, or otherwise in use. Lack of occupancy, in this sense, is known as "vacancy".
Tempered or toughened glass is a type of safety glass processed by controlled thermal or chemical treatments to increase its strength compared with normal glass. Tempering puts the outer surfaces into compression and the interior into tension. Such stresses cause the glass, when broken, to shatter into small granular chunks instead of splintering into jagged shards as ordinary annealed glass does. The granular chunks are less likely to cause injury.
Glass fibre reinforced concrete (GFRC) is a type of fibre-reinforced concrete. The product is also known as glassfibre reinforced concrete or GRC in British English. Glass fibre concretes are mainly used in exterior building façade panels and as architectural precast concrete. Somewhat similar materials are fibre cement siding and cement boards.
Safety and security window films are polyester or PET films that are applied to glass and glazing in order to hold them together if the glass is shattered. The main difference between film and laminated glass is that these shatter safe films can be applied to the glass or glazing after manufacture or installation. I.e., these films are retrofit products. These films are used widely all over the world; they can be found on trains, buses, cars, and buildings.
Demarcation of a perimeter, when the protection of assets, personnel or buildings is required, is normally affected by the building of a perimeter fence system. The level of protection offered varies according to the threat level to the perimeter. Different types of perimeter fencing include:
Strudyna, also known as Structural Dynamics Co., Ltd, is a renowned engineering and manufacturer of Stainless Steel Tensile Components for facade structures, with offices and fabrication facilities in the UK, Australia and Thailand, and manufacturing facilities in Thailand.
On 18 February 1991 two Provisional Irish Republican Army (IRA) bombs exploded at London mainline stations, one at Victoria station and the other at Paddington station, killing one person and injuring 38 other people at Victoria station. It was the IRA's second major attack in London in February 1991 after the Downing Street mortar attack eleven days earlier which was an attempt to assassinate the British War cabinet and the British prime minister John Major. It was also the first IRA attack against a civilian target in England since the 1983 Harrods bombing, marking a strategic change in their bombing campaign in England.
