DESIGN OF LOAD BEARING WALL PANELS - PCI
cast wall panels as load bearing or struc-tural units. This third paper in the series on de-sign considerations for a precast pre-stressed concrete apartment building deals with the load bearing panel de-sign for the 23-story structure. PRELIMINARY DESIGN CONSIDERATIONS The design process can be greatly simplified by reviewing the major items
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PCI Bridge Design Manual - 3rd Edition, First Release ...
www.pci.org• A 0.035 ksf future wearing surface allowance is included with the load effect distributed evenly to all beams. • For bridges with a cast-in-place concrete deck, the concrete strength is 4.0 ksi. A minimum thickness of 8 in. is used with ½-in. deducted for long-term wear when determining structural properties. For larger
Revised load and resistance factors for the AASHTO LRFD ...
www.pci.orglimit states and corresponding load and resistance factors. Equation (1) is the basic design formula for structural components given in the 2002 AASHTO standard speci˜cations.2 1.3D + 2.17 ... of mean value divided by nominal (design) value, and the coef˜cient of variation V, which is equal to the ratio of the standard deviation and the mean. ...
Recommended Practice for Design and Construction - PCI
www.pci.orgHowever, PCI cannot accept responsibility for any errors or oversights in the use of material or in the preparation of engineering plans. This publication is intended for use by professional personnel competent
Cracks and Crack Control in Concrete Structures
www.pci.orgConcrete can crack due to a number of causes. Some of the most significant causes are discussed in detail. Tensile Strength of Concrete The tensile strength of concrete is a widely scattering quantity. Cracking oc-curs when tensile stresses exceed the tensile strength of concrete. Therefore, to control concrete cracking, the tensile
Control, Structure, Concrete, Crack, Crack control in concrete structures
ARCHITECTURAL PRECAST CONCRETE JOINT DETAILS
www.pci.orgstages is an equalization or expansion chamber which must be vented and drained to the outside. Section 3.3 gives typical details of two-stage joints. It can be seen that the simplest form of a hor-izontal two-stage joint is the well prov-en shiplap joint. The rain barrier prevents most of the rain and airborne water from entering the joint.
Loadbearing Architectural Precast Concrete Wall Panels
www.pci.orghollow-core, or insulated) (see Figs. 1 a and f), window or mullion panels (see Figs. 1 b and c), ribbed panels (Fig. ld), or a double-tee (see Fig. le). Each type of panel will readily accom modate openings for doors and win dows. Fig. I b, c, d and e illustrate var ious types of ribbed panels. The panel shown in Fig.lc is a horizontal
PCI BRIDGE DESIGN MANUAL APPENDIX B AASHTO/PCI …
www.pci.orgPCI BRIDGE DESIGN MANUAL_____APPENDIX B AASHTO/PCI STANDARD PRODUCTS Appendix B ‐7 (Nov 11) AASHTO I‐Beams Dimensions (inches) Type D1 D2 D3 D4 D5 D6 B1 B2 B3 B4 B5 B6 I 28 4 0 3 5 5 12 16 6 3 0 5 II 36 6 0 3 6 6 12 …
Hollow-core slabs with cast-in-place concrete toppings: A ...
www.pci.orgStrength of Cylindrical Concrete Specimens.11 These cylinders were subjected to the same curing conditions as their companion top block. Each hollow-core slab manufacturer provided a total of twelve 4 × 8 in. (100 × 200 mm) concrete cylinders that were fabricated using the same batch of concrete as the bottom blocks. Com-
Recommended Practice for Design, Manufacture, and ... - PCI
www.pci.org1.1.5 Current research and future applications for prestressed concrete piling Section 6 concludes this report by highlighting some of the current issues and future research needs involving the design, manufacture, and installa - tion of prestressed …
Prepared by PCI Committee on Precast Sandwich Wall Panels
www.pci.orgC = coefficient of thermal expansion C u = factored compressive force C w = stud group adjustment factor d p = distance from compression fiber to centroid of pre-stressed reinforcement D = dead load e = eccentricity of panel section at midheight, due to out of plumbness, thermal bow, and load effects, relative to ultimate design load (for P-D ...
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