Download FIB 27: Seismic design of precast concrete building PDF

The purpose of this state-of-art file is to give present practices to be used of precast and prestressed concrete in international locations in seismic areas, to suggest stable perform, and to debate present advancements. The document has been drafted via 30 individuals from 9 various countries.

This state-of-art document covers: nation of the perform in numerous international locations; merits and drawbacks of incorporating precast bolstered and prestressed concrete in development; classes discovered from past earthquakes; development recommendations; layout ways; basic lateral load resisting platforms (precast and prestressed concrete body structures and structural partitions together with twin platforms) diaphragms of precast and prestressed concrete flooring devices; modelling and analytical tools; gravity load resisting structures; foundations; and miscellaneous components (shells, folded plates, stairs and architectural cladding panels). layout equations are pronounced the place worthy, however the emphasis is on rules. traditional cast-in-place strengthened concrete isn't really thought of during this report.

This fib cutting-edge document is meant to aid designers and constructors to supply secure and low in cost purposes of structural precast concrete and whilst to permit innovation in layout and development to proceed.

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Extra info for FIB 27: Seismic design of precast concrete building structures

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Fig. 3-4). They are fast to erect and have the advantage that the complex beam-column joint reinforcement is assembled in the precasting factory, rather than at the job site. Joints are located at the mid-span of the beams, and at mid height of the columns, away from the points of high ductility demand. 38 3 Precast construction concepts Fig. g. Fig. 3-5). g. Fig. 3-6). 1 General The construction of moment resisting frames and structural walls incorporating precast concrete elements usually fall into two broad categories; either “equivalent monolithic” systems, or “jointed” systems.

No consensus yet exists over the exact definition of performancebased engineering, but it implies that designers should be able to design a structure to perform at a selected level in response to an earthquake of a specific hazard level. edu]. 2 Structural performance levels Traditionally, three limit states or performance levels have been used to describe overall structural performance [Paulay and Priestley (1992)]: (1) Immediate occupancy (or serviceability) A structure that can be immediately occupied after an earthquake typically would have no sign of structural distress, and limited non-structural damage.

2 Precast concrete floor units Floor diaphragms may include a composite reinforced concrete structural topping layer to resist seismic shear, or may consist of precast units connected by welded or grouted connections (with a non-structural levelling topping), or may rely on grouted bars to resist diaphragm forces by shear-friction. Some precast floor elements are more suited to use without a structural topping layer than other types (see Table 3-1). Precast floor units must be detailed to accommodate the localised displacements that are likely to be imposed on them by the actions of the primary lateral load resisting system.

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