review of existing precast concrete gravity load floor

Review of Existing Precast Concrete Gravity Load Floor ...

Review of Existing Precast Concrete Gravity Load Floor Framing Systems 52 Stephen Pessiki, Ph.D. Assistant Professor Department of Civil and Environmental Engineering Lehigh University Bethlehem, Pennsylvania Richard Prior Design Engineer Frederic R. Harris, Inc. Philadelphia, Pennsylvania Richard Sause Ph.D., P.E. Assistant Professor

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Assessment of Existing Precast Concrete Gravity Load Floor ...

paper provide a review and assessment of existing precast concrete gravity load floor framing systems suitable for office build­ ings. The companion paper reviews 19 precast structural systems. The assessment presented in this paper treats interactions between

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REVIEW OF EXISTING PRECAST CONCRETE GRAVITY LOAD FLOOR ...

The review was conducted as part of a research project directed towards the development of new precast concrete floor systems for gravity loads for application in occupied office buildings having a regular spacing of columns. A companion paper presents the assessment of these floor systems. The research addresses the need for innovation in the ...

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REVIEW OF EXISTING PRECAST CONCRETE GRAVITY LOAD FLOOR ...

This paper reviews 19 precast structural floor systems from North America and overseas that are suitable for office building construction. This review includes a discussion of the impact of the structural systems. The review was conducted as part of a research project directed towards the development of new precast concrete floor systems for gravity loads for application in occupied office ...

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ASSESSMENT OF EXISTING PRECAST CONCRETE GRAVITY LOAD

This paper and a companion paper provide a review and assessment of existing precast concrete gravity load floor framing systems suitable for office buildings. The companion paper reviews 19 precast structural systems. The assessment presented in this paper treats interactions between the structural, service, and architectural systems that ...

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A new shallow precast/prestressed concrete floor system ...

Feb 01, 2014  Precast concrete floor systems could gain significant advantages over cast-in-place floor systems, if they could be designed as continuous floor systems that minimize the need for shear walls limiting their construction to around stair wells and elevator shafts. ... For gravity load analysis, the beams are designed according to ACI318-11 in ...

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(PDF) Shallow Flat Soffit Precast Concrete Floor System ...

“Review of existing precast concrete gravity load floor framing systems.” PCI J., The writers wish to acknowledge EnCon, Denver, CO and Concrete 40(2), 70–83.

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Lighter, Stronger Precast Concrete Floor System - NPCA

Oct 28, 2013  Stems: The floor panel is comprised of a topping (or deck) supported by a number of parallel, longitudinal concrete stems that extend along the length of the panel. The concrete stems extending between the end blocks are spaced 2 ft on center. Each stem has a depth of 6 in. to 16 in. and a width of 2 in. to 15 in., depending on design loads.

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PERFORMANCE OF PRECAST CONCRETE FLOOR SYSTEMS

of research into the seismic behaviour of precast concrete floor systems, and the observed damage caused to precast floor systems should be compared against the expected levels of performance. Preliminary results of an investigation into the performance of precast concrete floor systems during the Canterbury earthquakes are presented.

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Information Sheet Safe Load Securing of Precast Concrete Loads

hold the load in place. For Precast Concrete loads the use of the ‘Tie-down’ method which relies on the combined friction generated by the weight of the load and the ‘Tie-down’ force of the lashings alone is not recommended. The most appropriate approach to secure Precast Concrete Loads is using a combination of the ‘Tie-down’ and ...

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A new shallow precast/prestressed concrete floor system ...

Feb 01, 2014  Precast concrete floor systems could gain significant advantages over cast-in-place floor systems, if they could be designed as continuous floor systems that minimize the need for shear walls limiting their construction to around stair wells and elevator shafts. ... For gravity load analysis, the beams are designed according to ACI318-11 in ...

get price

(PDF) Shallow Flat Soffit Precast Concrete Floor System ...

“Review of existing precast concrete gravity load floor framing systems.” PCI J., The writers wish to acknowledge EnCon, Denver, CO and Concrete 40(2), 70–83.

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STRUCTURE magazine Creating an Opening in Existing Floors

Aug 27, 2018  Evaluation of Existing Structures. Once the opening is located, relevant existing floor structures must be carefully assessed. The proposed opening may affect existing floor structures in one or all of the following ways: (1) the design live load is increased at the new stair landing area, thereby overloading adjacent portions of the floor; (2) the original structural design assumptions (e.g ...

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Failure Mode and Ultimate Bearing Capacity of Precast ...

Dec 16, 2005  “Review of existing precast concrete gravity load floor framing systems”, PCI Journal, Vol. 40, No. 2, pp. 52 – 68. Google Scholar Crossref Research Group on Integrated Structure of Cast-in-situ and Precast Beams and Slabs ( 1982 ).

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Structural behaviour of ferrocement–brick composite floor ...

Nov 01, 2010  To develop a new floor slab system to overcome the shortcoming in the in situ concrete floor slab and existing precast floor systems is a challenging task for many researchers. As a summary, the main shortcomings in the existing systems could be one or more of the followings: • Long construction time. • Heavy weight. •

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Projects Structural Engineering Design Civil and ...

This precast concrete wall panel system serves as part of the gravity and lateral load resisting system and essentially provides a bearing wall that accepts a regular pattern of holes while allowing for major structural variables as large openings and cantilevers.

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ARCHITECTURAL PRECAST CONCRETE WALL PANELS

Architectural precast concrete has been used since the early 20th century, coming into wide use in the 1960s. The versatility of precast concrete makes it ideal for architectural applications. The exterior surface of a precast concrete piece can vary from a form face finish similar to cast-in-place to an exposed aggregate

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STRUCTURE magazine Load Testing of Concrete Structures

Part 2: Test Protocols and Case Studies. As discussed in Load Testing of Concrete Structures – Part 1 (STRUCTURE ® magazine, April 2014), load testing can be used to determine the ability of a structure to carry additional loads, to establish the safety of structures, to validate strengthening, to gain knowledge on the behavior of a structure, and to supplement, validate or refine ...

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Finite element analysis and structural design of ...

May 05, 2009  Pessiki S, Prior R, Sause R, Slaughter S. Review of existing precast concrete gravity load floor framing systems. PCI Journal, 1995, 40(2): 52–68. Google Scholar 5. Savage J M, Tadros M R, Arumugasaamy P, Fischer L G. Behavior and design of double tees with web openings. PCI Journal, 1996, 41(1): 46–62

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A Beginner's Guide to Lifting Devices - Precast

Jul 11, 2016  Not following the supplier’s recommendations and/or failing to consider all the different loads devices and precast structures will experience during a lift may lead to cracking, spalling or an unsafe situation. Jefferson Concrete will often call a vendor for advice when the product manufactured is

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Loads On Circular Precast Concrete Manholes And Access

Read Free Loads On Circular Precast Concrete Manholes And Access Review of Existing Precast Concrete Gravity Load Floor ... Description: Circular, above ground, open topped, prestressed concrete tank with sprayed on interior PVC membrane. Wall footing and base slab are cast-in-place concrete. The tank walls are precast concrete double-T sections.

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Structural Requirements - Chicago

FLOOR LOAD PLACARDS Structural Floor Load Placards must be obtained for storage and file rooms as well as mercantile, industrial, and technology center uses. • Submit a completed Floor Load Placard Data Sheet for each required location in the building. • Submit structural calculations and building framing plans for a structural review.

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Safe work with precast concrete WorkSafe

Nov 13, 2018  A precast concrete element means any item made of precast concrete (including, for example, a beam, column, floor slab, wall panel, or cladding panel). These guidelines are for persons conducting a business or undertaking (PCBUs) including designers, manufacturers, suppliers, installers and importers, as well as workers and any other people who ...

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Precast Diaphragm Panel Joint Connector Performance

system and to calculate the structural drift, the floor system is assumed to be rigid. Thus the gravity load system is assumed to have the same displacement as the shear wall. Recent research3,4,5, however, indicates that precast diaphragms may be subjected to large deformations under seismic loads. Under these conditions the gravity load

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Loads On Circular Precast Concrete Manholes And Access

Read Free Loads On Circular Precast Concrete Manholes And Access Review of Existing Precast Concrete Gravity Load Floor ... Description: Circular, above ground, open topped, prestressed concrete tank with sprayed on interior PVC membrane. Wall footing and base slab are cast-in-place concrete. The tank walls are precast concrete double-T sections.

get price

Failure Mode and Ultimate Bearing Capacity of Precast ...

Dec 16, 2005  “Review of existing precast concrete gravity load floor framing systems”, PCI Journal, Vol. 40, No. 2, pp. 52 – 68. Google Scholar Crossref Research Group on Integrated Structure of Cast-in-situ and Precast Beams and Slabs ( 1982 ).

get price

STRUCTURE magazine Load Testing of Concrete Structures

Part 2: Test Protocols and Case Studies. As discussed in Load Testing of Concrete Structures – Part 1 (STRUCTURE ® magazine, April 2014), load testing can be used to determine the ability of a structure to carry additional loads, to establish the safety of structures, to validate strengthening, to gain knowledge on the behavior of a structure, and to supplement, validate or refine ...

get price

Projects Structural Engineering Design Civil and ...

This precast concrete wall panel system serves as part of the gravity and lateral load resisting system and essentially provides a bearing wall that accepts a regular pattern of holes while allowing for major structural variables as large openings and cantilevers.

get price

ARCHITECTURAL PRECAST CONCRETE WALL PANELS

Architectural precast concrete has been used since the early 20th century, coming into wide use in the 1960s. The versatility of precast concrete makes it ideal for architectural applications. The exterior surface of a precast concrete piece can vary from a form face finish similar to cast-in-place to an exposed aggregate

get price

Finite element analysis and structural design of ...

May 05, 2009  Pessiki S, Prior R, Sause R, Slaughter S. Review of existing precast concrete gravity load floor framing systems. PCI Journal, 1995, 40(2): 52–68. Google Scholar 5. Savage J M, Tadros M R, Arumugasaamy P, Fischer L G. Behavior and design of double tees with web openings. PCI Journal, 1996, 41(1): 46–62

get price

Safe work with precast concrete WorkSafe

Nov 13, 2018  A precast concrete element means any item made of precast concrete (including, for example, a beam, column, floor slab, wall panel, or cladding panel). These guidelines are for persons conducting a business or undertaking (PCBUs) including designers, manufacturers, suppliers, installers and importers, as well as workers and any other people who ...

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THE CLARENDON TOWER DECONSTRUCTION: LESSONS

The middle bay of floor between the two “gravity” frames is interrupted by the lift, stairs, risers and toilet structures. The walls of these are all framed from lightweight timber/plasterboard and so not contributing to the primary lateral load resisting system. The façade comprises precast concrete panels with punched windows. Fig. 1.

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A Beginner's Guide to Lifting Devices - Precast

Jul 11, 2016  Not following the supplier’s recommendations and/or failing to consider all the different loads devices and precast structures will experience during a lift may lead to cracking, spalling or an unsafe situation. Jefferson Concrete will often call a vendor for advice when the product manufactured is

get price

How to Calculate the Load Bearing of Concrete Hunker

This note reflects the specific mix you will order throughout your project. Write this number down. This is the base load-bearing strength of your concrete. If you are doing a smaller home project with no special accelerants added to your mix, your load-bearing strength per concrete yard will be 3,000 psi. This is the standard psi of a common mix.

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Common Deficiencies And Upgrade Methods - Resisting System

Apr 27, 2021  6.5.1.5. Precast Concrete Diaphragms. Common deficiencies of precast concrete diaphragms include inadequate shear capacity, inadequate chord capacity, and excessive shear stresses at diaphragm openings or plan irregularities. Existing precast concrete slabs constructed using precast tees or cored planks commonly have inadequate shear capacity.

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LANCASTER COUNTY ADULT DETENTION FACILITY Third Level ...

- The typical precast concrete structural design approach would be to design the structural members to carry the actual design loads with little ad-ditional gravity load capacity. To that end no additional load is proposed to be placed on existing structural frame members including the beam members at the perimeter of the new floor infill areas.

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Minimum Design Loads for Buildings and Other Structures

Precast Concrete Box Sections for Jacking in Trenchless Construction ASCE/SEI/SFPE 29-05 Standard Calculation Methods for Structural Fire Protection SEI/ASCE 30-00 Guideline for Condition Assessment of the Building Envelope SEI/ASCE 31-03 Seismic Evaluation of Existing Buildings SEI/ASCE 32-01 Design and Construction of Frost-

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(PDF) Seismic performance and design of precast concrete ...

Another A few common types of pre-cast concrete floors used possibility to support the floor unit in such event can be in New Zealand are discussed: (i) flat slab floor (ii) to design the floor as a T-beam by providing an additional hollow-core concrete slab floor and (iii) double-tee tie at the middle to transfer floor load by providing floor.

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