Lakewood, Colo. Structural Engineer: KL & A, Denver Design-Build Contractor: Haselden Construction, Centennial, Colo. Among the Subcontractors: Trautman & Shreve (mechanical), Denver; Weifield Group (electrical), Denver; Rocky Mountain Prestress (precast concrete), Denver; JR Butler (glazing), Denver; OfficeScapes (modular furniture), Denver; Paxton & Vierling Steel (steel fabricator), Carter Lake, Iowa; Architectural Energy Corp. (LEED, daylighting and commissioning consultant), Boulder, Colo.; Technology
amount of poured concrete. The style was more notable in the mid-1970s and first introduced by Le Corbusier. As an architect and a designer who exhibited a trend of design in its simplest and most raw form, Le Corbusier brought a tantamount of attention to brutalism with the design of his Secretariat Building in India. * Miami Dade College’s campus is composed of brutalism architecture. However, just because the architectural design may contain raw material such as slabs of concrete, does not mean
What is concrete? Concrete is a composite material used widely in the construction industry. Concrete is basically a mixture of cement, water, aggregates and admixture (sometimes). Cement is a fine gray powder that consists of oxidizes calcium, silicon and aluminum. The aggregate used is normally gravel, crushed stone or sand. Admixture is a solid or liquid substance that gives a certain characteristics of the concrete. The cement reacts with water chemically and binds the aggregates together through
reinforced concrete (GFRC) is most suitable for construction because it is a great material for restoration of old buildings and also used for the exterior of the buildings. It is also being used widely for walls and ceilings. GFRC allow almost perfect replication of building terra-cotta and ornaments. It’s very low shrinkage allows molds to be made from existing structural ornamentation, then cast in GFRC to replicate the original designs. GFRC is lightweight compared to other traditional concrete which
except concrete piles, which can also be site-cast in predrilled holes (boring method).
Limitations Of Precast Cantilever Construction Method- In cantilever method construction procedure is very complex. It require great care to maintain stability of structure during construction. Special attention is required for precast segments as they have joints. An epoxy agent is used to the joint before putting it in the superstructure. Size and weight of precast elements are limited by capacity of placing and transportation. Success of this process relies strongly on accurate geometry control
advantages. There has been increasing interest in the use of fabric formwork as an alternative to traditional rigid formworks. This paper presents a brief historical overview, different applications and the advantages of fabric formwork. Introduction Concrete has been cast in rigid formwork since it was invented. The traditional rigid formworks are constructed using flat, straight sheets with uniform section built with 90-degree joints [1]. The resulting forms are simple, uniform cross-section shapes
or by the materials used to make them. A bridge built solely for people to cross over is classified as a pedestrian bridge. Likewise, a bridge made out of wood would be classified as a wooden bridge, while a bridge made out of concrete would be classified as a concrete bridge. However, the most efficient way to classify bridges is according to their structural form (“Bridges,” 2008). The three most basic types of bridge structures are girder bridges, arch bridges, and suspension bridges (“Bridge
three span bridge with 60, 80 and 60. The carriageway is 7 m wide by 1.0 m wide sidewalks along each position. There are in situ diaphragm abutments and pier. The superstructure is built integral with the base. The foundations of the bridge are precast concrete piles with in-situ pile-caps. To avoid unnecessary reactions resulting from thermal expansion of the platform, the abutments are taken as small batteries and flexible enough. Although not enough to fill the back foot diaphragms to resist forces
Status Traffic hazard, coupled with aging and vulnerable infrastructure, pose the potential for damage and loss of resource. Precast prestressed concrete girder bridges appeared as a mean by which more efficient designs can be achieved. They offer many advantages such as the ease of construction and a relatively high durability. The prestressed girders are usually precast of site and transported for erection before pouring composite decks. As a result, full continuity between the girders has generally
WALLS Cladding Systems CONTENTS • 1.0 – Timber Frame Construction in the UK • 1.1 – Current Position • 2.0 – What is a Cladding System? • 2.1 – Materials and Characteristics (Cladding) o 2.1.1 – Masonry Products: Stone, Brick, Poured Concrete and Concrete Block o 2.1.2 – Synthetic Stucco (EIFS, or Exterior Insulation and Finish Systems) o 2.1.3 – Wood Products, Including Shingles and Shakes, Plank Siding, Plywood, OSB, and Hardboard o 2.1.4 – Metal Products, Including Steel and Aluminum
terminal collapsed and the architecture company hired for designing, executing and operating the terminal was sentenced with involuntary homicide charges (John Conway), a new terminal was rebuilt following similar design plans but replacing the faulty concrete blocks with steel and metal structures so to prevent any future similar disaster. The new extension was completed and reopened in March 2008. I. Structure of the terminal The terminal was acclaimed for its innovative design and optimized use of
because I think they are the most suitable for this type of ground because they will proved excellent waterproofing and won’t move. Secant piles Secant piles are made by joining multiple reinforced concrete piles. The concrete piles are reinforced by placing steel beams inside the concrete piles.
lost in a concrete during the operation of cement hydration. A concrete takes a period of time (hours, days, weeks) depending on the types of concrete used in order for it to reach its potential strength and durability. Henceforth, the process of curing is needed. Besides that, there are also a few factors that affecting the curing period, depending on the types of concrete used. For instance, the temperature and the humidity of the atmosphere are dependent on the duration for the concrete to cure
other materials together, when mixed with water it forms a hardening paste of calcium silicate hydrates and calcium aluminates hydrates. it evokes highly diverse reactions. Cement is used in mortar (a combination of sand and roughly burnt gypsum) and concrete (bulk rock-like building material made from aggregate, sand, and water). By modifying the raw material mix and the temperatures utilized in manufacturing, compositional variations can be achieved to produce cements with different qualifications.
Charles River. What is really unique about it is that it has no elevators or resting spots. Sutton 2 Third, the John F. Kennedy Library is one of Boston’s most dramatic architectural buildings. It comprises of a 135,000 square foot library, a precast concrete tower building, a glass-enclosed pavilion, and two 230-seat ori...
foundations The function of the rubble trench foundation is same as the normal foundation which to sustain the load of the structural. Rubble trench foundation is a continuous trench that filled with crushed stone and topped with a certain grade of concrete beam. Rubble trench foundation provides both structural bearing and water drainage in a single foundation system. The width of the trench of the beam is build to determine the bearing capacity against the load. Besides that, the stone filled at the
Self-compacting concrete (SCC) is an innovative concrete that does not require vibration for placing and compaction. It is able to flow under its own weight, completely filling formwork and achieving full compaction, even in the presence of congested reinforcement. The hardened concrete is dense, homogeneous and has the same engineering properties and durability as traditional vibrated concrete. Making concrete structure without compaction has been done in the past. Like placement of concrete underwater
INTRODUCTION Concrete is a product made by using a cementing medium; which is the reaction between hydraulic cement and water. Concrete is made with different types of cements that contain pozzolan, fly ash, blast furnace slag; as well as sulphur, admixtures, polymers and fibres. These concretes can be heated, pressured hydraulically and sprayed. Concrete is made up of water, fine and coarse granular aggregates secure in cement or a binder. The cement will fill up the spaces between the aggregates
This paper evaluates the effect of heat on the compressive strength of concrete by way of comparing the strength of concrete that is subjected to heat treatment with unheated one. Concrete ingredients available locally were obtained for the production of concrete cubes into a dimension of 15x15x15 cm. A total of 12 cubes were casted and then cured at room temperature (28 °C). The cubes were divided into 4 sets. Each set comprised of 3 cubes for each Water-Cement ratio. Two of these sets were cured