International Concrete Abstracts Portal

Showing 1-5 of 13 Abstracts search results

Document: 

SP107-07

Date: 

June 1, 1988

Author(s):

C. H. Murphree

Publication:

Symposium Papers

Volume:

107

Abstract:

Forming economical concrete is discussed from the contractor's viewpoint. Two major concrete projects are used to compare manufactured and job-built systems for economy and quality. The contractor reveals his estimated and actual prices. The re-use of form panels, up to 72 times, produces real economy and achieves quality. The "team approach" in selecting the right system is used and recommended.

DOI:

10.14359/3635


Document: 

SP107-10

Date: 

June 1, 1988

Author(s):

J. M. Shilstone, Jr.

Publication:

Symposium Papers

Volume:

107

Abstract:

A contractor's construction requirements include different factors than are normally considered in concrete mix proportioning. Changes in materials and job conditions during construction can affect concrete and its ability to meet the contractor's construction needs. Computerized analysis of aggregate gradations and concrete mix proportions from project submittals help reveal potential workability problems that will impact pumping, economy, and finishing. Statistical analysis of concrete test results can reduce concrete cost by using the ACI Building Code to determine minimum average strength requirements. Ongoing analysis of changing materials and job conditions can predict and resolve problems rapidly and, therefore, minimize delays. Two computer programs, seeMIX and seeSTAT, are used to demonstrate how computer analysis can aid construction projects.

DOI:

10.14359/3653


Document: 

SP107-01

Date: 

June 1, 1988

Author(s):

W. R. Anthony

Publication:

Symposium Papers

Volume:

107

Abstract:

This text moves from a macro view of the entire building process toward a micro view of the specific details, in an effort to maximize the value of a site-cast concrete building frame. It starts with an economic overview of the development process, including a budget analysis of a concrete framed building. A case is made for three basic principles that lead to constructability, allowing for efficiency during the construction of a site-cast concrete building from a formwork perspective. The text focuses on both horizontal and vertical design strategies, then attempts to integrate these concepts into a total project strategy using a 10-step approach. This paper stresses the need for teamwork. Teamwork is the key to achieving economy in the construction process, and good communications among all parties facilitates the team effort. The text is the product of a collaborative effort by the concrete construction division of a corporation. Their findings and recommendations were organized and integrated by the author. Additional resources are noted at the end of the article.

DOI:

10.14359/3339


Document: 

SP107

Date: 

June 1, 1988

Author(s):

Editor: Ramon J. Cook

Publication:

Symposium Papers

Volume:

107

Abstract:

SP-107 When building a concrete structure, quality and economic efficiency go hand-in-hand. Substantial savings can be achieved by integrating the forming system into the total building process. Forming Economical Concrete Buildings has been especially prepared as an aid to both the designer and contractor. With the cost of formwork sometimes representing over half the cost of construction, it should be fully considered when selecting building designs, layouts, structural member sizes, and construction methods. A collection of 12 papers, Forming Economical Concrete Buildings, offers the reader a variety of ideas which can lead to substantial savings in formwork costs.

DOI:

10.14359/14140


Document: 

SP107-02

Date: 

June 1, 1988

Author(s):

L. E. Svab and W. T. Scott

Publication:

Symposium Papers

Volume:

107

Abstract:

Cast-in-place concrete one-way ribbed slab decks are undergoing an evaluation. Slab thickness established by fire rating requirements and considerations of minimizing formwork labor and maximizing material economy have dictated a departure from the use of traditional 20 and 30 in. wide joist forms. Wider joist forms are being increasingly used to answer these considerations. Wide module joist systems generally have 6 to 8 in. wide ribs at 5 to 6 ft centers with 4-« in. top slabs and are supported by wide beams. The ribs are designed as T-beams rather than joists. ACI 318-83 design requirements are not pinpointed for the evolved slab/joist-beam system. Presented is an attempt to interpret and apply ACI 318-83 design requirements together with detailing and design considerations that are unique to this framing system.

DOI:

10.14359/2916


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