MANOR
HEIGHTS - Apartments & Houses
Manor
Heights is a development by Octagon Developments Ltd on
the site of the 
former
Manor House Hospital on the outskirts of Golders Green. Existing
structures on the site consisted of a series of three-storey framed
and brick buildings accommodating the wards and operating theater's.
The
scheme envisaged, was to provide luxury residential accommodation
together with a nursery building for early learning pupils, an
affordable block of flats for a Housing Association and the prime
development of 16 three-storey town houses and 32 apartments varying
from 4 to 6 storeys.
The
nursery building consisted of a 3 storey steel framed structure
with a masonry envelope. Foundations were piled due to relatively
poor ground conditions requiring reinforced concrete ground beams
and lift shaft to support masonry and the steel frame. The steel
work was engineered in-house using our Masterseries structural
steel analysis and reinforced concrete design programs.
The
houses also provided interesting design problems foremost, the
design of the cantilevered balconies, which supported the front
elevations. Foundations were also piled but in this instance ground
beams were isolated from pile caps by anti-vibration mountings
to dampen vibrations from the Underground Northern Line beneath.
Similar isolation bearings were required for the Affordable Housing
Block.
The
Apartment block was formed on the upper part of the sloping site.
To achieve the required underground car parking, a piled perimeter
wall was incorporated allowing the five meters of surrounding
site to be retained and giving uninterrupted working space.
Foundations
were piled due to the intensity of the loading, requiring multi-group
pile caps. The framework up to ground floor was of reinforced
concrete, with columns, ground floor beams and trough slab. The
design and initial detailing of the substructure was carried out
using Masterseries reinforced concrete design and detail package
although these preliminary drawings were prepared for tendering
purposes. Later drawings were prepared using Autocad for construction
purposes.
The
superstructure, being in part greater than 5 storeys was subject
to A3 progressive collapse. Since the client required traditional
construction, load-bearing masonry was adopted to support the
upper floors. The requirements of the code for A3 were accommodated
using full vertical and horizontal ties. The precast slabs were
preformed to allow ties to be introduced at the edges and vertical
ties were incorporated in the load-bearing masonry.
The
overall concept allowed the contractor to erect the superstructure
with minimal time delay waiting for insitu works to cure prior
to continuing to the next level.
Alan
Hutton Associates, The Slaughterhouse, Farren Court,
The Street, Cowfold, West Sussex, RH13 8BP
Tel: 01403 864455 Fax: 01403 864402 E-mail: aha@alangh.globalnet.co.uk
Copyright © 2002 Alan Hutton Associates, All rights reserved. Site Design
by SolveIT
