structural engineer

Project video: 125-129 Arthur Street Parramatta

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The ultimate skyscraper is becoming a reality

A key innovation in building the ultimate skyscraper is making the buildings progressively more and more intelligent…

The building on the video is the 70-storey Trump Tower which according to its structural engineer, Ahmad Rahimian is currently the world’s tallest residential tower. It’s 862 feet high or about 263 meters. In order to build a building of that height, there were a lot of new technologies introduced into the building. A key innovation is how it deals with wind, it does more than just resist it. It actually cancels it out. How does it cancel it out? By using an ingenious device called Tuned Mass Damper. A tuned mass damper is in effect a huge counterweight, a massive 600 tonne block of solid steel surrounded by shock absorbers. The device cancel the wind pressures that apply to the building and suppress the building’s motion.

In 100 years, skyscrapers like the Trump Tower have expanded to 1o-storey bricks to 100+storey steel. All of the skyscraper’s weight is eventually transferred down to the ground, this ultimately takes the strain. The buildings of the modern skyscraper begins out of sight, deep below the earth. Today’s skyscrapers can have foundations more than 100-feet deep but the nature of the ground they rest upon is a crucial factor.

But the big change is still to come. We are going to see buildings in the future  progressively become more and more intelligent. The next level of technology is going to be 100+ storeys using active control systems. This technology is already well and truly integrated into our cars, anti-lock brake system, traction control etc. It’s just a matter of time before it becomes standard features to our buildings.

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Project: 278 Bunnerong Road Hillsdale

Work has begun on the project located at 278 Bunnerong Road Hillsdale. Meso Solutions are currently inserting sheet piles and bulk excavation works are set to take place shortly.

Great design by Nick Krikis and the architects at KTA. Bradley and the team at Jebeko have got things well and truly under control. ACSES Engineers are proud to be involved in this terrific development and honoured to be the Project Structural Engineer.

Project Specifications:

*   Three below ground basements
*   Two buildings on a common transfer slab
*   84 Residential Units in total

Our Scope of Works

*   Design and Detail the following:
*   Shoring & bulk excavation solution
*   Foundations solution
*   All concrete slabs
*   All concrete columns & walls
*   Specialist Engineering Assessment Report including full calculations package for Sydney Water
*   Shoring Report including full calculations package for Roads and Maritime Services
*   Dilapidation reports covering public assets and neighbouring properties


278 Bunnerong Road Hillsdale

 

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Project: 538-540 Railway Parade Hurstville

The phone call went exactly like this…

Hello, George speaking…

“George… I just left Council and we are adding two extra levels on top”

But you’re forming up Level 1?

“I know… Architect will send you plans tomorrow”

Yes, but you’re in the process of forming the deck for Level 1?

“Ok cool… Architect will send you plans tomorrow… I’ll call you later”

The line went silent…

So imagine this:
• Foundations were built
• All the Basement 2 and Basement 1 structures were completed
• The Ground Floor main transfer deck was well and truly done
• And the boys on site were in the process of forming up the Level 1 slab

Suddenly we found ourselves needing to support an additional two levels of a structure that was not designed to carry an additional two levels.

This was going to be interesting, to say the least.

Using Finite Element Modelling (FEM), we were able to highlight weak areas of the existing structure that needed reinforcement as well as confirm areas that had sufficient strength to resist the new loads.

From the foundations to the supporting columns and walls to the suspended slabs, ACSES Engineers developed a total solution that enabled the extra levels to be added, while still maintaining the overall safety of the structure.

Below are some images of the carbon fibre reinforcement that were retrofitted to the soffit of the transfer slab. A terrific technology that gave us the extra strength we needed. Other strengthening works included widening and underpinning specific foundations as well as ‘beefing up’ specific columns and walls.

Shane and his team at First Class Building did an amazing job pulling it all together and the end result is a building that is safe, two storeys taller, and just about to be handed over to the various new owners.

Well done to all involved…

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Project: 43-45 Beane Street Gosford

ACSES Engineers are honoured to have been appointed as the Project Structural Engineer for the project located at 43-45 Beane Street Gosford. We are incredibly excited to be part of the design team that will help deliver this exceptional development on the Central Coast.

Project Specifics

  • 3 Levels of Below Ground Basements
  • 1 Level of Commercial Suites
  • 18 Levels of Residential Units

Scope of Works includes the structural design of the following by our in-house Structural, Civil and Geotechnical Engineers:

  • Shoring and Foundation Solution
  • All retaining structures
  • All concrete slabs, stairs, ramps, columns and walls

For more information please contact us anytime.

Boarding House View 43-45 Beane Street Gosford

43-45 Beane Street Gosford Iamge 2

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Project: Chiswick, New South Wales

An absolute joy to have been involved in this project. The client knew exactly what he wanted (and what he didn’t want). The builder was a genius. The architect – PL Projects – was focussed, firm, yet fair. And the team at ACSES Engineers just loved working on it.

ACSES Engineers designed both the bulk excavation solution and the various building structures. Utilising our finite element modelling (FEM) capabilities, we were able to eliminate the need for shoring works by taking advantage of the geotechnical parameters of the site. The FEM analysis verified that our vertical cut solution could safely be carried out without adversely impacting the neighbouring structures.

Again using our FEM expertise, ACSES Engineers designed the superstructure as a concrete framed solution made up of off-form reinforced concrete columns, walls and stairs. To achieve various parameters set by the architect, we designed the suspended slabs as post-tensioned solutions.

The level of detailing required for this master piece was ‘unbelievable’. From the concrete pool rising out of the ground with the infinity edges. To ‘the box’ suspended two levels over the Lower Ground Floor and cantilevering out 5m past its supports. To the off-form concrete walls almost 8m tall that needed to be poured in one go. To the ‘zig-zag’ stairs that could only be 100mm thick or the cantilevered stairs that could be no thicker than 110mm – the end results make all that work well worth the effort.

Congratulations to all involved.

ACSES Engineers are incredibly proud to have been part of the Design Team and honoured to have been the Project Structural Engineer for this development.

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Project: 1 Bede Street Strathfield

The structural frame at 1 Bede Street Strathfield has been completed, and the builder has done an amazing job in an incredibly short time.

General site specs:

  • Five Storey Building
  • Two below ground basements
  • 12 Residential Units

ACSES Engineers designed both the shoring and bulk excavation solutions, as well as the building superstructure.

Given the relative small size of the development, cost was a major driving factor for the client who gave us a very specific project brief – “fast, cheap and safe – make it happen”…

Utilising our finite element modelling capabilities, we were able to minimise the shoring works required to support the two level excavation face. Our modelling took advantage of the geotechnical parameters present at the site and ACSES Engineers were able to design a cantilevered pile wall solution with shotcrete infills.

Again using our FEM expertise, ACSES Engineers designed the superstructures as a concrete framed solutions made up of columns and walls using the Rediwall product wherever possible. This eliminated the need for traditional vertical formwork and resulted in further savings in time and cost. The slabs were all designed as conventionally reinforced slab solutions and the individual units were partitioned using lightweight non-load bearing walls made from fibre cement (Hebel) and framed Gyproc.

The project was architecturally designed by Ghazi Al Ali Architects and ACSES Engineers are proud to be part of the Design Team and honoured to be the Project Structural Engineer for this development.

1 Bede Street Strathfield Image 1

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Project: 5-7 Telegraph Road Pymble

ACSES Engineers designed a shoring and bulk excavation solution that extended four levels below 5-7 Telegraph Road Pymble as well as the superstructures.

Below are some site specs:

  • Two buildings over common basement carparking
  • Three below ground basements
  • Each Basement level is over 2100m2
  • 47 Residential Units

Utilising our finite element modelling capabilities, we significantly reduced the required shoring works at 5-7 Telegraph Road Pymble by designing an anchored pile and shotcrete wall to support the excavated face above the Class IV material, and then vertically cut the rock strata down to the bulk excavation level.

We also designed the crane base, without requiring piles, to bear directly on the Class IV material located higher than the final bulk excavation level. This shoring and bulk excavation solution designed by ACSES Engineers resulted in massive cost and time savings for South West Builders, who must be congratulated on successfully carrying out the detailed works.

Again using our FEM expertise, ACSES Engineers designed the superstructures as a concrete framed solutions made up of columns and walls using the Dincel Wall product wherever possible. This eliminated the need for traditional vertical formwork and resulted in further savings in time and cost for the builder. To partition the units, lightweight non-load bearing walls made from fibre cement (Hebel) and framed Gyproc were used.

The project was architecturally designed by Aleksander Design Group and ACSES Engineers are proud to be part of the Design Team and honoured to be the Project Structural Engineer for this development.

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Here is the 3D Perspective.

5-7 Telegraph Rd Pymble 3D

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Project Location: 35 Devlin Street Ryde

ACSES Engineers designed a shoring and bulk excavation solution that extended four levels below Devlin Street, one of Sydney’s busiest roads.

Site access was limited to only the single carriage laneway at the rear, and large tenanted commercial buildings either side of the development were supported on high-level foundations that needed to be protected as well. Utilising our finite element modelling capabilities, we significantly reduced the required shoring works by designing an anchored pile and shotcrete wall to support the excavated face above the Class IV material, and then vertically cut the rock strata down to the bulk excavation level. This resulted in massive cost and time savings for the builder YTO Constructions, who must be congratulated on successfully carrying out the detailed works. To further reduce construction time, we designed the superstructure as a concrete framed solution made up of columns and walls using the Dincel Wall product, which eliminated the need for traditional vertical formwork where ever possible. ACSES Engineers are proud to be part of the Design Team and honoured to be the Project Structural Engineer for this development.

35 Devlin Street Ryde

Here is the 3D Perspective.

35-37 Devlin St Ryde

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Project Update: 100 Castlereagh Street Liverpool

Thanks for all the fantastic feedback.

Below are some site specs:

  • Four below ground basements
  • Each Basement is over 3300m2
  • 2 Commercial Levels
  • 25 Residential Levels – 298 Units

Here are some more images from the site:

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