Title: Composite Precast Concrete Connections
Date: April, 1962
Volume: 7
Issue: 2
Page number: 33-48
Author(s): Alfred A. Vee
https://doi.org/10.15554/pcij.04011962.33.48
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Abstract
In the past several years, I have found in Hawaii, that the maintaining of dimensional accuracy in the production of structural concrete units is somewhat of a problem. Since concrete is a heterogenous material and its physical properties can be affected by a great number of variables such as type of aggregate, cement content, curing methods and many other factors, it is not unusual that precast, prestressed members may suffer dimensional discrepancies in length, camber or lateral twist. In addition to this problem, the human factor in the production of these units plays an extremely important role. A misplacement of metal inserts for connections or a mismeasurement of cast lengths can seriously compound the problem, especially where the connection detail depends critically on accuracy. Costly errors both in field and factory due to dimensional inconsistencies can be a discouraging aspect of the rapidly growing prestressed, precast concrete industry. This paper is devoted to the discussion of a type of connection whereby poured-in-place composite concrete is used to fill the gap between and tie-together precast members.