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    Average compressive concrete bearing stress of anchorages shall not exceed limits set forth in Section 3.1.7 of Post-Tensioning Manual Guide Specifications for Post-Tensioning Materials. 3.

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    Prestressed concrete bridges have many advantages over the reinforced concrete ones and therefore, majority of long span concrete highway bridges are now-a-days being constructed of prestressed …

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    Division 5 Section “Metal Fabrications” for furnishing and installing loose hardware items. ... negative for various parts of the building as required by applicable building code or ASCE 7, including basic wind speed, importance factor, exposure category, and ... Minimum Anchorage Requirement: Not less than 2 anchors per unit of less than

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    Bars & post-tensioning bar systems. ... Stressed or prestressed ground anchors use high-tensile stressbar of grade Y1050 with diameters between 18mm and 75mm; Bar systems are supplied for use in both temporary and permanent applications. ... Buildings. Prestressed beams and columns, which may use prestressed bars or bars of grade S670 to ...

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    Avalanche defences must encompass a whole area of ground and rest their sides against natural spurs. Photo No. 104 Examples of snow bridges with either metal or prestressed concrete frames and superstructures of squared timber.

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    History of Prestressed Concrete in UK. ... During the early part of WWII, a number of prestressed concrete beams were made, to be stored for emergency use. ... Factory at Tiverton in Devon, and the HMSO warehouse at Sighthill in Edinburgh was the forerunner of precast, prestressed building construction. The main beams were pretensioned in a ...

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    Cable and Tension Structures. ... There are many examples of this type of construction used as industrial buildings where the roof structure, either as a single or as a double cantilever, is suspended from cables, which in turn are anchored on robust pylons above the roof level. ... Double-layer prestressed cable truss systems (Figure 2b) (c ...

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    Placing a prestressed slab directly on the ground – known as slab on grade - is the preferred solution for installation in large areas such as container terminals and distribution centres. Use of the slab on grade technique combines economy, long-term durability and a flat finish for smooth vehicle operations.

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    US6082063A - Prestressing anchorage system for fiber reinforced plastic tendons - Google Patents ... Soft-metal overlay. This anchorage is used by Tokyo Rope (1990). The gripping pressure is transferred to the FRP rods through a soft metal tube (sleeve). ... Prestressing anchorage system for fiber reinforced plastic tendons Publications (1 ...

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    Complying with the requirements of the applicable building codes. 1.4 DESIGN A. Prestressed units shall be designed to comply with the latest requirements of ACI 318-95. ... and instructions of anchorage devices to be embedded in other construction. Furnish templates if required for accurate placement. ... A. Provide forms and, where required ...

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    Listed Buildings, folding wedges, raking shore Part Three Builders Plant 152 diesel engine, bulldozer, low loader ... Prestressed concrete 487 tendon, prestressed concrete, anchorage ... Large cast insitu ground floors 602 Shear Strength, galvanised steel, damp-proof

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    This section specifies furnishing, installing, grouting, and stressing tendons in post-tensioned building framing members as shown on the Drawings and described herein.

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    The requirements created a perfect match for the new prestressed-concrete system, which readily turned out quantities of uniform beams, cast in off-site plants, under controlled factory conditions, independent of the weather and site conditions.

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    Professional issues issues affecting the structural engineering profession STRUCTURE magazine Deferred Submittals Part 1: Integrating Responsible Parties By Dean D. Brown, S.E. W e are living in an age of inte- ... pre-engineered metal buildings, prestressed or post-tensioned concrete sys-tems, and some types of curtain walls. ...

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    Prestressed concrete is a form of concrete used in construction which is "pre-stressed" by being placed under ... (e.g. buildings, ground slabs), or; ... threads, external and internal, can be described as male and female. For example, a screw has male threads, while its matching hole has female threads, the helix of a thread can twist in two ...