Concrete Reinforcement Archives | Page 18 of 18

The Laguna Honda Hospital is one of the country’s largest skilled nursing and rehabilitation facilities located in San Francisco, CA serving seniors and adults with disabilities. The facility specializes in providing individualized, patient-focused long-term care, rehabilitation, hospice, and Alzheimer’s and HIV/AIDs care for 765 residents in 13 programs.

The 150-year-old hospital was recently expanded and extensively renovated under a 10-year-long plan that constructed three new state-of-the-art buildings. The large project consisted of 500,000 sq. ft. of new construction and 150,000 sq. ft. of renovations. Care was taken to stay true to some of the historical components of the hospital and the surrounding community as well as retaining a natural environment on the 62-acre campus. Conco was brought in to provide concrete services for the new construction.

The healthcare facility was the first hospital in California to be awarded LEED Silver certification. Construction manager was the Turner Construction Company and the architects were Anshen+Allen Architects and Gordon H Chong & Partners. The engineer was Rutherford & Chekene Consulting Engineers.

The state-of-the-art facility now offers a home-like atmosphere comprised of units in which 15 patients reside. Each unit has a common living area where patients can socialize, and each floor is made up of 4 units that join together to form neighborhoods to create a community of sorts. Given that the average stay at the facility is 17 months, it is essential for patience to have a comfortable environment.

The new Rehabilitation Center contains two therapy pools and two gymnasiums. The Esplanade is an indoor style boulevard that offers services such as “a café, a community theatre, two art studios, a multi-media library with a fireplace, barber and beauty shops, a tropical bird aviary, and a cafeteria with indoor and outdoor seating.”*

*http://lagunahonda.org/Our%20New%20Campus%20From%20Institution%20to%20Community

Discover the experience of working with one of the top professional commercial concrete contractors in the Colorado Springs area. Conco has been in business since 1959 delivering first-rate concrete services and has all the experience and expertise to handle even the most challenging projects.

Coming Out of the Ground in Seattle’s Theatre District

The Holland Partner Group has come out of the ground with a new 40-story apartment building adjacent to the historic Paramount Theatre. This project, with its close proximity to Rapid Ride Transit and Seattle’s retail core, positions itself in the middle of the vibrant downtown. Upon completion this project will consist of 325 apartments, 276 parking stalls, and a restaurant and retail at the ground floor to cater to the theatre clientele.

As part of the Holland Team, Conco is performing all of the cast-in-place concrete, rebar, formwork, shotcrete and concrete pumping for this signature property. The small footprint with minimal lay-down area and five-day form cycle present challenges that require constant communication and coordination with all trades on site. Conco will be utilizing a perimeter protection system and perimeter netting system to ensure the aggressive schedule is met without jeopardizing the workplace. As of August 1, Conco is on schedule having recently completed the 12th floor. Conco will top out the project January 22, 2014.

815 Pine is designed and constructed to achieve LEED Silver status. The project is scheduled to be completed in April, 2015.

The Wafflemat Foundation-Forming System

Wafflemat is one of the most-proven foundation systems ever developed, with millions of square feet of residential and light commercial space built across the United States and Mexico since 1995 – all without a single structural failure.

It is also one of the easiest, and in terms of cycletime, fastest to construct, taking 3 – 4 days vs. 10 – 14 for alternative slabs. Wafflemat conforms to both International Building Code and Post Tension Institute specifications.

To build a Wafflemat foundation, all that’s needed is a clean and level pad, as the system sits directly on grade. No pre-soaking is necessary.

After installing underground utilities, a task made much easier with Wafflemat because the trenching does not have to go under any in-ground ribs or deepened footings, the perimeter formwork is placed directly on the pad.

A series of interlocking Waffleboxes, 8½” or 12” high, 19” x 19” thermal-grade, heat-resistant, patented plastic forms, are then set directly on the ground. Strong enough to walk on, they connect together at the top and bottom with plastic clips supplied with the Wafflemat system and create voids in the foundation. There is only one way Waffleboxes can be installed, ensuring each Wafflemat foundation is laid out correctly – and, to code.

A post tensioned or rebar reinforced concrete slab, usually 4” – 5” thick, is monolithically poured directly over the Waffleboxes. The pour creates concrete beams running throughout the footprint and perimeter. The completed Wafflemat slab then sits on the ground like a raft.

There are two key features that set Wafflemat apart from all other foundations systems, and are the reasons why it delivers superior performance. First, the voids formed by the Waffleboxes act as ‘relief valves’ that absorb heaving soils and eliminate significant structural cracking.

Second, and even though Wafflemat provides one of the stiffest cross sections per cubic yard of concrete, the system has less contact area with the underlying soils when compared with other slabs. And, less contact area means less uplift pressure on the slab when soils heave.

In terms of environmental impact, a Wafflemat foundation uses less concrete and steel, and reduces excavation of soils and accompanying off-haul when compared to other systems. This results not only in lower carbon emissions, but also less erosion and transport of sedimentation in drainage and storm runoff waters ultimately flowing into the ocean. Wafflemat also assists builders in obtaining LEED points, most likely in the categories Energy & Atmosphere, Materials and Resources, and Innovation and Design Process.

Finally, and even though Wafflemat’s track record of reliability is unparalleled, it’s consistently one of the most economical systems in all construction, as reductions in soils prep, materials, and cycletime often produce cost savings of 10% – 20% when compared to other foundations.

Visit our Wafflemat partner for more information.

Contract Award

Turnkey concrete package for Los Angeles Hall of Justice

LA Hall of Justice — L.A. Hall of Justice

The Los Angeles Hall of Justice has been closed since the magnitude 6.7 1994 Northridge earthquake. The 335,000 sq. ft. building stands 14 floors tall in L.A.’s downtown. Originally constructed in 1925, this imposing structure was meant to convey a sense of justice and public importance. The Hall was designed in the classic Italianate style and was constructed with Type I non-combustible building materials including concrete floor slabs, a steel frame structure encased in concrete, granite exterior veneer, and hollow clay tile partitions at the interior. The Hall of Justice also presented a stunning interior with an ornate, barrel-vaulted entry foyer, gold-marble walls, and large ionic columns supporting the exquisitely gilded ceiling.

Although the building was completely abandoned following the earthquake, plans to revive it have been under consideration more than a decade. To date, all hazardous materials have been abated and all interior demolition of infrastructure systems and non-bearing walls have been completed. The building has been prepared for its eventual restoration and re-occupancy as an office building. After many years of designs and budgets, Clark Construction was awarded the job in a design build competition valued at $151,000,000.00.

A key part of the reconstruction is to preserve and restore the historic features of this important structure while bringing the building up to existing seismic codes. In order to accomplish this, shotcrete will be used extensively to reinforce existing concrete walls.

Conco’s scope of work will included all shotcrete, concrete, and rebar. We are also resurfacing the entire existing floor surfaces in the Hall of Justice structure and constructing a new 9 story, 1000 car parking structure on the same site.

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