|
|
|
Çѱ¹µµ·ÎÇÐȸ / v.10, no.3, 2008³â, pp.209-220
|
ÇϺÎÃþ ¸ðµ¨¸µ¿¡ µû¸¥ Áö¹Ý À§ ÄÜÅ©¸®Æ® ½½·¡ºêÀÇ È¯°æÇÏÁß ÇÏÀÇ Äøµ °Åµ¿ ºÐ¼®
( Effect of Underlying Layer Modeling on Curling Behavior of Concrete Slabs on Grade under Environmental Loads ) |
| ±è¼º¹Î;½ÉÀç¼ö;À±µ¿ÁÖ; °æÈñ´ëÇб³ Åä¸ñ°ÇÃà´ëÇÐ Åä¸ñ°øÇÐ;°æÈñ´ëÇб³ Åä¸ñ°ÇÃà´ëÇÐ Åä¸ñ°øÇÐ;°æÈñ´ëÇб³ ´ëÇпø Åä¸ñ°øÇаú;
|
|
|
 |
|
| |
| ÃÊ ·Ï |
| º» ³í¹®Àº Áö¹ÝÀ§¿¡ ³õÀÎ ÄÜÅ©¸®Æ® ½½·¡ºê°¡ ȯ°æÇÏÁß¿¡ ÀÇÇØ Äøµ ÇÒ ¶§ÀÇ °Åµ¿À» ÇØ¼®ÇÒ °æ¿ì¿¡ ÇϺÎÃþÀÇ ¸ðµ¨¸µ ¹æ¹ý¿¡ µû¸¥ ÇØ¼® °á°úÀÇ Â÷À̸¦ ºÐ¼®ÇÑ ³»¿ëÀ» ±â¼úÇÏ¿´´Ù. Áö¹ÝÀ§¿¡ ³õÀÎ ½½·¡ºê ½Ã½ºÅÛÀ» Àüü 3Â÷¿ø ¸ðµ¨, 3Â÷¿ø ½½·¡ºê¿Í ÇϺÎÃþÀ» ½ºÇÁ¸µÀ¸·Î ±¸¼ºÇÑ ¸ðµ¨, ±×¸®°í 2Â÷À© ½½·¡ºê¿Í ÇϺÎÃþÀ» ½ºÇÁ¸µÀ¸·Î ±¸¼ºÇÑ ¸ðµ¨ µîÀ¸·Î °³¹ßÇÏ¿© ÇØ¼®À» ¼öÇàÇÏ¿´´Ù. ¸ÕÀú ÇϺÎÃþÀÌ ´ÜÀÏ ÃþÀ¸·Î ±¸¼ºµÇ¾î ÀÖÀ» °æ¿ì¿¡ ÇϺÎÃþ ¸ðµ¨¸µ ¹æ¹ý¿¡ µû¸¥ Äøµ °Åµ¿ÀÇ Â÷À̸¦ ºÐ¼®ÇÏ¿´´Ù. ±×¸®°í ÇϺÎÃþÀÌ ¼·Î ´Ù¸¥ Àç·á¿Í µÎ²²·Î ±¸¼ºµÇ¾î ÀÖ´Â º¹ÃþÀÏ °æ¿ì¿¡ ÇϺÎÃþ ¸ðµ¨¸µ¿¡ µû¸¥ Äøµ °Åµ¿ÀÇ Æ¯¼ºÀ» ºñ±³ ºÐ¼®ÇÏ¿´´Ù. ¿¬±¸°á°ú ÇϺÎÃþÀ» ¹«ÀÎÀå ½ºÇÁ¸µÀ¸·Î ¸ðµ¨¸µ Çϸé ÇϺÎÃþÀÌ ´ÜÃþÀÏ °æ¿ì¿¡´Â ÀϹÝÀûÀ¸·Î´Â »ó´çÈ÷ Á¤È®ÇÑ ÇØ¼®°á°ú¸¦ ¾òÀ» ¼ö ÀÖÀ¸³ª, ÇϺÎÃþÀÌ º¹ÃþÀÏ °æ¿ì¿¡´Â »óÀ§ÇϺÎÃþÀÇ Åº¼º°è¼ö°¡ Ŭ ¶§, ÇÏÀ§ÇϺÎÃþÀÇ Åº¼º°è¼ö°¡ ÀÛÀ» ¶§, ±×¸®°í »óÀ§ÇϺÎÃþ°ú ÇÏÀ§ÇϺÎÃþÀÇ µÎ²²°¡ µÎ²¨¿ï ¶§´Â Äøµ ½Ã¿¡ ½½·¡ºêÀÇ ¼öÁ÷º¯À§ Â÷À̸¦ °ú´ëÆò°¡ÇÏ°Ô µÇ¸ç ÃÖ´ëÀÀ·ÂÀº °ú¼ÒÆò°¡ÇÏ°Ô µÈ´Ù. |
|
| This paper presents the differences in the analysis results according to the underlying layer modeling methods when analyzing the curling behaviors of the concrete slabs on grade under environmental loads. The models of the slab on grade system considered in this study included a three-dimensional(3D) model, a model composed of 3D slab and springs for underlying layers, and a model composed of 2D slab and springs for underlying layers. First, when the underlying layer consisted of one layer, the curling behaviors according to the different models were compared. Then, the underlying layers that consisted of two different materials and thicknesses were considered. The results of this study showed that the tensionless spring model for the underlying layer gave very accurate results when the underlying layer consisted of one layer. However, when the underlying layers consisted of two layers, the spring model for the underlying layers could overestimate the displacements and underestimate the maximum stress with a large elastic modulus of upper underlying layer, a small elastic modulus of under underlying layer, and thick underlying layers. |
| |
| Ű¿öµå |
| ÄÜÅ©¸®Æ® ½½·¡ºê;ÇϺÎÃþ;Äøµ;Äþ÷;Äôٿî;À¯ÇÑ¿ä¼Ò;concrete slab;underlying layer;curling;curl up;curl down;finite element; |
| |
|
|
 |
|
Çѱ¹µµ·ÎÇÐȸ³í¹®Áý / v.10, no.3, 2008³â, pp.209-220
Çѱ¹µµ·ÎÇÐȸ
ISSN : 1738-7159
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200807653005997)
¾ð¾î : Çѱ¹¾î |
|
| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
|
|
|
|
|
|