Expanding MCEC - largest convention and exhibition space in Australia

Author:Tamara Stakic.

位于澳大利亚的墨尔本会展中心（MCEC）正在进行扩张，以帮助世界上最宜居的城市保留其会议和活动资本的地位。

The20,000-square-metre expansion我ncludes 9,000 square metres of:

• 灵活，多功能活动空间
• New exhibition halls
• 额外的会议室
• 宴会屋
• 新的咖啡馆和酒吧

完成后，新空间将使MCEC的位置澳大利亚最大的会议和展览空间，with an increasedtotal size of more than 70,000 square metres.

扩展是南码头扩建项目的一部分，包括新的347室墨尔本南码头和Anew 1,150-space multi-level car park– all fully connected and integrated with existing buildings. The car park is complete, and the new hotel recently opened.

The Victorian Government provided $205 million AUD for the expansion of MCEC, and the State’s partner Plenary and its partners Flagship Property Holdings and Vicinity Centres are investing more than $150 million AUD in the new hotel and car park.

Melbourne-based steel fabricator Stilcon is one of the many local companies working on the project, engaged by the project builder Probuild to manufacture and install the entire steel skeleton for the new exhibition hall, convention centre spaces and the car park.

Stilcon is providing a complete steelwork package– steelwork processing, cambering and painting, transportation to the site, and finally the onsite erection. All this is done from fabrication at their facility in Melbourne’s west.

斯蒂康的核心工作是制造五个85米长的桁架, weighing more than 70 tonnes each. Each truss is comprised of eight 21-metre modules, ranging from 5 to 10 metres in height.

The finished product, comprising of4,300 tonnes of structural steel,结合最高水平的强度，具有结构完整性和机动性，以安全，稳定安装。

提供完整的钢铁套件的渐进方法

STILCON在墨尔本繁忙的中央商业区的速度建立时间并在现场创造更好的安全排除区，采用更加渐进的方法来构建新的四级停车场的钢框架。

The method of steel erection proved to be a crucial time saving aspect allowing the façade contractor and concreter to proceed onsite unconstrained and work in parallel with the steelwork contractor. Stilcon site engineer Adam Tierney explained this ‘vertical method’ focuses on a full-height straight-up build of a section of the structure, which is replicated in turn across the building width adopting the same principal approach.

STILCON采用了允许交易前面进入全高度结构的方法，而钢铁安装机组人员可以前进，而不是更常见的水平落地构建序列。增加建造的海湾数量也在钢结构和后续交易之间提供安全缓冲区，这是该网站上的职业健康和安全（OHS）要求。

“The flatter 'horizontal' approach is how most other multilevel carparks have been traditionally built in steel or concrete which spreads the floor area out wider, limiting the ability for multiple work fronts,”Tierney said.

The vertical build method involved firstly constructing a single square grid bay using full-height (13-metre tall) columns with some temporary propping to achieve plumb erection. All primary and secondary floor members are erected starting from the lowest level, resulting in a complete four-level-high bay of steelwork.

Once the initial bay was completed, secondary bay structures were then built in two directions, allowing a block of bays to be completed sooner by Stilcon to be handed over to follow-on tradespeople.

在这种情况下，金属甲板首先铺设在两个水平上，然后是一个水平。虽然金属甲板铺设在级别上，但加固安置在二级开始。然后将板倒在二级上，在上层和下部结构之间产生安全甲板。

Then steel reinforcement was installed, and concrete poured on level one as well as the steel decking laid for level three by the installer working off the poured level two.

From the ground, up

To provide crucial time savings and accuracy, Stilcon turned to Madigan Surveyors, a professional surveying firm that provides a complete range of services to the construction industry and allied professionals. Madigan Surveyors used Geosystems solutions to precisely set out all steel connections to an existing structure – from ground slabs where the column anchor bolts and base levels are precisely set out to horizontal connections into existing structural slab edges or walls.

Geosystems solutions were used to manage the construction layout for connections to existing structure, ensuring that the construction team were working to the as-built condition rather than the design.

此外capturing as-built conditions, as-built surveys captured newly built structures as part of the qualityassurance procedures还可以为任何成员连接展示现有墙壁。

由于钢结构的灵活性和运动越高，调查范围也包括在内监测主要展厅屋顶桁架。

Trusses were monitored throughout the entire build cycle. During the monitoring stage, the project team captured the defection of the trusses at initial erection stage when the truss is initially under own self weight. Further monitoring was conducted as the roofing, truss cladding and operable wall systems were loaded onto the trusses.

简单的布局，易于设置

STILCON也最近购买了该图标机器人建设的全站仪，因为它能够整齐地系在建立的建筑施工工作流入和rapidly speed up installation preparation and construction tasks.A solution which Andreas Caleta, Stilcon surveyor, favours for itssimplicity and ease of use.

The Leica iCR60 has asimple and guided setup routine designed for minimal use errorto give users the confidence for an error-proof set up routine.

“The iCON robotic total station is the fastest, reliable and easy-to-use layout solution, making it one of the most productive one-person layout solutions for construction professionals who have a need for positioning tasks and bringing design to reality,”Caleta said.