2 Story Iconic House Design near Negombo

This two story iconic elongated shaped massive house has designed with  unique aesthetic features.There are two main edges of the house and each edge has a large propped cantilever type feature, which is a huge portion of the house is supported by only one small sized column. A 13 feet long cantilever part has designed beyond the isolated column and on the top of that feature cladding has done with glass to view the entire surroundings. Under that huge propped cantilever part Green Grass Lawns are supposed to be built.

The unique architectural design was done by Architect:Gihan Karunanayake and the Structural Design was done by the Charted structural design engineer, Isuru S. Amarasena.

The foundation was designed with isolated pad foundations and random rubble masonry wall bases and 9"x9" tie beams with 4 number of T12 reinforcement bars. As the building is somewhat closer to the coastal area, ensuring the behavior of the building as a large single mas was very important as it can be lead to differential settlements.

In order to design the large cantilever and propped cantilever parts 9"x16" sized beams with several number of T16 bars were needed and some special type cantilever isolated stepped staircase design was used to impress the architectural features.Special consideration calculations needed to be done for the lateral stability of the building and the frictional drift as it has a narrow strip type shape. Cracking of glass cladding on cantilever slab parts also needed to be taken in to account as they can cause larger deflections.




           

Extension to small house @ Mirihana

Structural design work of this very small extension project was done to an already built house in a 4 perch land by Eng:Isuru S. Amarasena. Construction work was done by Eng:Prashan Ihalagama. Design was cosisted with a new car parking area, a bed room , balcony and water tank area. Though the project was a small one, design was somewhat complicated as the foundation area was interrupted by the service and sewer lines.

3 Story House for a Client @ Hokandara

The Architectural design is done by Architect:Amila Liyanapathirana & Structural design was done by Eng:Isuru S. Amarasena. The house is designed with two car park and a balcony on top of that. A mid size open terrace is also available in the house. Entire foundation system was designed with square type pad footings and 9"*9" tie beams and rubble works for walls.

Filling Station near Gampola

A two story fuel station building near Galaha, Gampola was a kind of simple structure. But, because of an embankment in the back side a retaining wall was deigned and it was also taken as a part of the building. Some beams were designed for torsional loads as they needed them with a circular curved appearance without supporting columns in between.

House of a client in Panadura

This is a two story house with a single car park and inside the house there are four bedrooms and three bathrooms. Living area and Dinning area area situated together in the ground floor and TV lobby in the upper floor is opened to the large void area with double height walls. A simple awesome economical house design. 

Design Review of a 6 Story Commercial Building in Kiribathgoda

We've done a structural review of a six story commercial building due to some stability issues and some public complaints on behalf of the client. We pointed out the problematic places & inadequate element sizes and inadequate reinforcement &  proposed some retrofitting methods too.

Housing project near Malabe town.

This three story house is constructed in Malabe area. The structural design part was done by Eng:Isuru S. Amarasena of Adorable Building Designs team. The project cost was 100 lacks (Excluding doors, windows and tiles) and the total area is 3000 square foot. 

Two Story House in Imbulgoda

This two story house is constructed in Imbulgoda near Kiribathgoda area. The structural design part was done by Eng:Isuru S. Amarasena of Adorable Building Designs team. The project cost was 70 lacks (Excluding doors, windows and tiles) and the total area is 2800 square foot. 

Administration Building (4 Story) of General Hospital, Kaluthara

This was proposed to build very near to the main road and within the premises of General Hospital - Kaluthara. Purpose of the building is to accommodate the administrative staff. Small Auditorium, a library and some storing facility also available inside the building.

Shallow type of foundations such as pad or strip footings were proposed at or below depth of 2.0 meter below the existing ground level. Soil was to be improved by using a compacted quarry dust layer as the bearing capacity of the soil was around 100 kPa. Construction works of this building is done by State Engineering Corporation. The architectural design has done by the Senior Chartered Architect (Mrs.) Dhammika of central Engineering Consultancy Bureau. The structural design has done by Chartered Structural Engineer, Isuru S. Amarasena under the guidance of Senior Structural Engineer, Nimal Premathilake.

Renal Care Unit (8 Story) - General Hospital, Baticaloa.

Twin Houses (2 Story) for one of our clients near Kiribathgoda.

Faculty of Nursing Accommodation Building (6 Story) - Sri Jayawardanapura

The proposed premise is located at Sri Jayawardanapura. The ground water table is not uncounted at the time of doing soil investigation process. Two storied and single storied buildings are at the boundaries.
This building is a six storied building and it is for the accommodation facility for nurses. In one sides the bed rock is founded very near to the surface (about 2 m) and in another sides it was somewhat far(about 10.5 m). So we had to consider the differential settlement and we decided to leave a construction joint across the building. For one side we went for pad and strip footings and in the other side we had to go for a raft foundation. The overburden consists of a very strong lateric formation.

The Structural building modal was developed from the Structural software ETABS of CSI company.
Structural Design work of this building is done by the Structural Engineer, Isuru S. Amarasena.

Accident & Emergency Unit (4 Story) Building - General Hospital, Kaluthara

Kalutara General Hospital is next to Nagoda and is located in Western, Sri Lanka. Proposed project Site was located within the present premises of the General Hospital. Shallow type of foundations such as pad and strip footing were considered at or below depth 1.0m below the EGL for the substructure of this large building. Design Engineers, requires evaluation of sub soil conditions of the proposed Site in order to determine the parameters involved with designing a suitable foundation for proposed structure.  Under the above circumstances, M/s Ground Engineering Consultants (Pvt.) Ltd. (GEC) of No. 24, Station Road, Wattala, were entrusted by the Client, with the sub soil investigations by their Work Order No. AK/2015/06 of 23rd September 2015, after accepting the GEC Quotation of 28th July 2014. The entire Structural Engineering part was done by Structural Engineer, Isuru S. Amarasena under the guidence of Specialist Engineer, Nimal Premathilake(cecb).
The Ground and 1st floor is utilizing for the Accident and Emergency Unit and the above two floors will be utilized as a ward complex. In second and third floors, there are large toilet blocks and the access to the second and third floors is provided by a lift and a staircase constructed separately with a lobby area as the phase2 of the project. The water tanks will be placed on the top of this phase 2 building which is constructed separately by a movement joint with the main building.
This large building will be opened in next 8th of January.

The Structural Modal of this building is developed by the Prokon Software.

Photos below shows the building after the construction works are almost finished.

 Some of the photographs below are taken during the construction stage.

Front View During the Construction Stage

Rear View During the Construction Stage

Site visit of the Minister of health during the construction stage are shown below.