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Atkin, B L and Gill, E M (1986) CAD and Management of Construction Projects. Journal of Construction Engineering and Management, 112(04), 557–65.
Chang, L (1986) Inferential Statistics for Craftsman Questionnaire. Journal of Construction Engineering and Management, 112(04), 492–9.
Chang, L and Borcherding, J D (1986) Craftsman Questionnaire Sampling. Journal of Construction Engineering and Management, 112(04), 543–56.
Chrzanowski, E N and Johnston, D W (1986) Application of Linear Scheduling. Journal of Construction Engineering and Management, 112(04), 476–91.
De La Garza, J M and Melin, J W (1986) Prepayment Ability to Offset Inflation. Journal of Construction Engineering and Management, 112(04), 514–29.
Hadipriono, F C, Lim, C and Wong, K (1986) Event Tree Analysis to Prevent Failures in Temporary Structures. Journal of Construction Engineering and Management, 112(04), 500–13.
Jaafari, A and Mateffy, V K (1986) Games People Play with Cost Control in Australia. Journal of Construction Engineering and Management, 112(04), 566–81.
Laufer, A and Ledbetter, W B (1986) Assessment of Safety Performance Measures at Construction Sites. Journal of Construction Engineering and Management, 112(04), 530–42.
O'Connor, J T, Larimore, M A and Tucker, R L (1986) Collecting Constructability Improvement Ideas. Journal of Construction Engineering and Management, 112(04), 463–75.
Ramaswamy, S D and Pertusier, E M (1986) Construction of Barrettes for High‐Rise Foundations. Journal of Construction Engineering and Management, 112(04), 455–62.
Tyvand, J and Blachly, A T (1986) Foamed Plastic Absorbs Staged Post‐Tensioning Deflections. Journal of Construction Engineering and Management, 112(04), 582–7.
- Type: Journal Article
- Keywords: Bridges, highway; Crushing; Falsework; Foam; Plastics; Post‐tensioned concrete;
- ISBN/ISSN: 0733-9364
- URL: https://doi.org/10.1061/(ASCE)0733-9364(1986)112:4(582)
- Abstract:
Staged construction of a long, post‐tensioned, concrete highway bridge faces a falsework designer with the alternatives of a costly overdesign of falsework bents for all but a one‐time, short‐term load or the provision for expensive lowering devices. The problem is solved by using crushable foamed plastic support blocks. The support blocks can be designed to safely support the dead load of the superstructure and to crush when post‐tensioning increases the reaction, thus limiting the reaction. While crushing, the blocks continue to provide the necessary support for the superstructure. Stress and strain graphs for foamed isocyanurate are provided, which demonstrate its suitability for this application and provide the basis for design.