DEVELOPMENT OF NEW DESIGN METHOD FOR CONTROL OF CRACKING IN CONTINUOUSLY REINFORCED CONCRETE PAVEMENT. PROCEEDINGS, 4TH INTERNATIONAL CONFERENCE ON CONCRETE PAVEMENT DESIGN AND REHABILITATION, PURDUE UNIVERSITY, APRIL 18-20, 1989
DEVELOPMENT OF NEW DESIGN METHOD FOR CONTROL OF CRACKING IN CONTINUOUSLY REINFORCED CONCRETE PAVEMENT. PROCEEDINGS, 4TH INTERNATIONAL CONFERENCE ON CONCRETE PAVEMENT DESIGN AND REHABILITATION, PURDUE UNIVERSITY, APRIL 18-20, 1989
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连续钢筋混凝土路面裂缝控制新设计方法的开发。
DOI：
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发表时间：
1989
期刊：
影响因子：
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通讯作者：
A. Kawakami
中科院分区：
文献类型：
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作者：
R. Sato;Y. Hachiya;A. Kawakami
本文详细介绍了连续配筋混凝土路面裂缝控制方法。纵向裂纹起源于横向裂纹被认为是CRCP的失效准则。由于裂缝发生的可能性取决于横向裂缝处的荷载传递效率，因此裂缝控制即裂缝宽度和裂缝间距的控制是设计CRCP的重点。本研究包括以下步骤。首先，推导了新的钢筋应力计算公式。利用这些方法可以较准确地估计裂缝间距和裂缝宽度。然后，建造了全尺寸试验路面，并从施工开始连续监测路面的行为。最后，通过试验路面实测数据验证了公式的有效性。应用新公式，证实了该试验路面所采用的加固位置在理论上是合理的。
This paper contains a detailed description of the crack controlling method for continuously reinforced concrete pavement (CRCP). A longitudinal crack originating from the transverse cracks is considered as a failure criteria in CRCP. As the possibility of this cracking depends on the load transfer efficiency at the transverse crack, crack control, namely controlling both crack width and crack spacing, is considered a keystone in designing CRCP. This study consists of the following steps. First, new formulas for calculating stress in the reinforcement have been derived. By using those, crack spacing and crack width can be estimated with accuracy. Then, full scale test pavements have been constructed and the behaviour of the pavements has been monitored continuously from the construction. Finally, the validity of those formulas has been verified by various data obtained in the test pavement. By using the new formulas, it is confirmed that the position of the reinforcement adopted in this test pavement is supported to be theoretically reasonable.