Category: Student Week 2

Project: Oriana II Oxford Street

Client: Oriana GP (Land Securities/FREP Joint Venture)

Architect: ESA

Cost Consultants: William Dick Partnership

Project Manager: William Dick Partnership

Structural Engineer: Richard Watkins Partnership

Project Oriana was a major retail refurbishment of a number of historical buildings in the heart of London’s West End shopping district. The scheme involved the demolition of the buildings fronting Oxford Street and the structural alteration of the former Vigin Mega Store.

McLaren were engaged to work with Frogmore and Land Securities to bring the differing collection of buildings into a single 140,00 sq ft shell.

Oriana GP required modern, flexible layouts for rent, the works delivered layouts suited to the needs of high end retail tenants.

The work on site involves the partial demolition and strip out of the existing building, formation of a new basement and the construction of a new multi-storey structural steel frame clad in stone and glass.

The new configuration consists of a tenant escalator and lift voids, in addition to vehicle loading bays to the rear and landlord area. Externally the listed façades underwent extensive restoration to reveal the impressive early 20th century stone features.

The site confines meant that all works had to be contained within the building footprint and logistical procedures involved ongoing consultation with two local authorities, in addition to careful coordination with TFL and the Crossrail works ongoing to Oxford Street & Tottenham Court Road.

Reference:http://www.mclarengroup.com/divisions/construction/market-sectors/retail/project-oriana-oxford-street-london

Building Component: The main components on the buildings in Oxford Street were stones and brick construction. Specifically the use of the red brick, and the “brickwork has been the five courses to the foot instead of the orthodox four courses”. Along all of Oxford street (before the demolishing process) at the shop level the marteial at the front was always red bricks.

Stone components were what then began to replace the red bricks.

 

Beatrice Melli

Building: 5 BroadGate

Architect: Make

Contractor: Mace Structural

Enginer:Burro Happold

Site visit Nov 27 with Anya

 

This building is constructed using a skeleton framing system. Where vertical H columns and horizontal I beams constructed a rectangular grid. This supports the floors.

Building component

The building component I have chosen is a Steel column, which is 2.7 m in height and .4M in width. The column is constructed off site then erected in place.

 

Materials.

These I columns are commonly made out of structural steel. Structural steel is a material formed with a specific shape or cross section. Within each country there is a different regulation for structural steel, The normal yield strength in Europe grades available are 195, 235, 275, 355, 420, and 460

These I columns are constructed off site using a process called “Hot Rolling”. This is done by recrystallizing the structural steel. After the grains deform during this process they recrystallize.

These columns need to be protected from Fire.  These columns, which are currently exposed, will be covered using masonry, plasterboard or sprayed with a coating. If the columns were not been protected in some way a fire could possible weaken the material nature and cause a collapse.But it would take a substantial amount of heat to cause this , around 700C.

The difference between columns and the beams, which are attached to it, is that the goal of the column is to take the compression load from the structure.

 

TS-LiamDenhamer-#1

 

 

PROJECT INFO
Project name – 5 Broadgate
Architects – Make
Engineer – Buro Happold
Contractor – Mace

BUILDING COMPONENT
Cellular beam (aproximately 10 m long by 50 cm deep) – a type of beam with regular web openings

THE MATERIAL – STEEL
Steel is a strong material that is highly resistant to shaping. The method most commonly used for shaping steel is to heat the material to approximately 1,200°C in a reheat furnace and roll the steel (squeezing it between sets of rolls) to give it the desired shape.

FABRICATION OF COMPONENT
Cellular beams are formed by splitting two rolled sections to form two T sections. The two T sections are then welded together to form an I-section with circular-shaped web openings.

Web openings in beams are typically formed to allow services to pass through the beam integrating the services into the structure in order to reduce floor depth.

Project: Windeyer Building – Corner of Cleveland Street and Howland Street

Architect: Ian Ritchie Architects + Engineering: tbc + Construction: Kier Construction

Building Component: Prefabricated Facade Panels The facade is composed of prefabricated, insulated panels. They are made of exterior metal sheets with built in insulation components, most likely a batt insulation. The metal is a zinc/aluminum alloy.
The panels are made of a metal exterior for durability and minimal maintenance. The panels also have built in windows for ease. The panels allow for incredibly efficient and timely construction of the facade in order to begin work on the interior faster. The panels are not structural, in the photo, concrete columns can be seen behind the facade along with concrete floor slabs, which both are structural in this project. The panels are divided into multiple long sheets of metal with slight gaps between them; this is to accommodate for shrinkage and growth of the metal during temperature changes outside.

Metal Thickness: around .5mm – Insulation: around 50 mm

Fitzroy Place

Architect: Lifschutz Davidson Sandilands and Sheppard Robinson

Developer: Ken Shuttleworth, Christian and Nick Candy

Building component: façade – structure – foundation Dimension: 95,000 m2 floor area, 100m*150m construction area

Materials: palette of brick, cast metal, natural stone, reinforced concrete and precast concrete

reinforced concrete: foundation hole is dug out, metal rods are then placed and filled up with concrete. Concrete is a mixture of coarse and fine aggregates with a paste of cement and water. it is suitable for load-bearing members of structures and high density and great strength. The material has good thermal compatibility, durable and strong. However, it has low tensile strength and ductility. Casting concrete with reinforcement such as steel eliminates this problem.

Project: 11 Soho Street – Mixed-use scheme of 70,000 sq ft.

Retail-Offices-Residential

(The retail part of it will be a huge Zara shop, of course).

Architect: Allford Hall Monaghan Morris

Civil & Structural Engineer: The Walsh Group

Mechanical Engineer: MTT

Contractor: GVA Second London Wall

Building Component: Steel formwork for concrete casting. The steel beams are to support wood components, which are placed on top. Both the steel and the wood will be removed once the concrete is set.

The steel formwork is pre-fabricated off-site and is brought in pieces to be assembled quickly. The steel is placed in a grid in which the beams in one direction are thicker than the other. The thicker beams are in the width of about 250mm, and in the height of about 400mm. It looks like each thick beam is actually made of four surfaces creating a cross-section of a hollow rectangle. They are perforated with circles/oval shapes, to reduce weight or perhaps to allow interaction with other building elements. The thinner beams, which are perpendicular, cross through about two thirds of the thicker beams, so their height should be about 250-300mm. Their width – 30mm.

Tottenham Court Road Station Upgrade

Architects/Consultant Designers: Arup, Atkins and Hawkins\Brown

TS-MaterialsW2

 

Project title: Corsham Street Student Housing

Architect: Stephen Marshall Architects

Engineer: t.b.c.

Contractor: HG Construction Limited

Info: 

CORSHAM STREETValue: £30m Client: Scape Construction: Spring 2013 Corsham Street just north of Silicon roundabout in east London will be the new home for the latest INTO University residential/teaching campus. http://www.corshamstreetconstructionnews.co.uk http://www.scapeliving.com/scape-shoreditch   The site is still in its demolition stage, so the analysis applies to the demolished building components of the previous building – The Karen House on Brunswick Place. – Brick load bearing wall panel, spans between two other load bearing wall panels. 300 mm thick, circa 2m high and 5m wide with the maximum weight of 5 tonnes. – Lime-and-sand bricks – C73-10 – crushed quicklime mixed 5-10% with sand and water ( 1:12 ratio of lime to sand) – left to dry for 12 hours – compressed into moulds – the usual shape 9 inches long by 4,6 inches by 2,5 inches at the pressure of 2 tons per square inch, equivalent to about 90 tons on each brick. They are then run into a long steel boiler, where the steam is blown in for four hours at 165 lbs. pressure per square inch at a temperature of about 370 degrees Fahrenheit. Sand-lime has a primary energy content of 190,6 kWh/t. The bricks are stacked together in situ with mortar and can be coated to improve both the insulation as well as the image of the facade.

Fitzroy Place

Architect : Lifschutz Davidson Sandilands / Shepphard Robson

Structural Engineer : Ramboll

Services Engineer :  AECOM

Main Contractor : Sir Robert McAlpine

Precast Contractor : TechRete

Material

Precast Concrete Panels – External walls that continue across the façade – approx. 200mm thick and 1500 in height.

Fabrication

Concrete mix – precast and fabricated in the factory/transported to site – 24 hour curing in stainless steel mould. 1 x cement, 2x fine and 2 x course aggregates.

Properties

3000 psi = 20 mpa

Final

Concrete covered up with reconstructed stone marries for aesthetic purposes

Full document attached

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