| ²é¿´: 650 | »Ø¸´: 2 | |||
| ±¾Ìû²úÉú 1 ¸ö ·ÒëEPI £¬µã»÷ÕâÀï½øÐв鿴 | |||
11211121½ð³æ (СÓÐÃûÆø)
|
[½»Á÷]
ÇóÖú£ºËÄܰïæ·Ò»ÏÂÕªÒª£¬Ð»Ð»£¡
|
||
| Ëæ×ÅÁ¬ÐøÁººÍÁ¬Ðø¸Õ¹¹¹ã·ºµÄÓ¦Ó㬷¢ÏÖһЩÇÅÁºÔÚÊ©¹¤¹ý³ÌÖи¹°å³öÏÖÁÑ·ì¡£±¾ÎÄÔËÓõ¯ÐÔÁ¦Ñ§¼ÆËã»ìÄýÍÁ¸¹°åÈýÏòÊÜÁ¦Çé¿öϵÄÖ÷ÀÓ¦Á¦£¬²¢¶Ô±È¸¹°åÄÚ×î´óÖ÷ÀÓ¦Á¦Óë»ìÄýÍÁ¿¹ÀÇ¿¶ÈµÄ¹ØÏµ£¬ÓÉ´Ë˵Ã÷¸¹°å²úÉúÁÑ·ìµÄÔÒò¡£½áºÏʵ¼ÊÇÅÁº£¬ÔËÓÃansys½¨Á¢ÈýάʵÌåÄ£ÐÍÄ£ÄâÁ¬ÐøÁº¡¢Á¬Ðø¸Õ¹¹ÇÅÔÚ²ÉÓÃÐü±ÛÏÖ½½·¨Ê©¹¤Ê±ËÄÖÖ¹¤¿öÏ»ìÄýÍÁ¸¹°åÊÜÁ¦×´Ì¬£¬¼ÆËãµÃ³ö×î´óÖ÷ÀÓ¦Á¦·Ö±ðΪ£º1.04MPa¡¢3.93MPa¡¢2.81MPaºÍ-0.47MPa¡£Òò´Ë˵Ã÷ÊúÏòÔ¤Ó¦Á¦ÄÜÓÐЧ¿ØÖƸ¹°å»ìÄýÍÁµÄÖ÷ÀÓ¦Á¦£¬ÎªÔ¤·À»ìÄýÍÁ¸¹°åÄÚ²¿Ö÷ÀÓ¦Á¦³¬¹ý»ìÄýÍÁ¿¹ÀÇ¿¶È£¬Ó¦ÔÚÊ©¹¤Ê±ÏÈÕÅÀÊúÏòÔ¤Ó¦Á¦£¬Æä´ÎÕÅÀˮƽԤӦÁ¦¸Ö½î£¬×îºóÔÚÕÅÀÊúÍäÔ¤Ó¦Á¦¸Ö½î¡£ |
» ²ÂÄãϲ»¶
֮ǰÈÃһ˶ʿÉúË®ÁË7¸ö·¢Ã÷רÀû£¬ÏÖÔÚÕâ7¸ö»ñÅú·¢Ã÷רÀûµÄά»¤·Ñ¿É´ÓÄĶùÖ§³ö¹þ£¿
ÒѾÓÐ5È˻ظ´
²©Ê¿¶ÁÍêδÀ´Ò»¶¨»áºÃÂð
ÒѾÓÐ29È˻ظ´
²©Ê¿ÉêÇë¶¼ÊÇÄÚ¶¨µÄÂð£¿
ÒѾÓÐ5È˻ظ´
µ½Ðµ¥Î»ºó£¬»»ÁËеÄÑо¿·½Ïò£¬Ã»ÓÐÍŶӣ¬³ÖÐø»ýÀÛ2ÇøÒÔÉÏÂÛÎÄ£¬ÄÜÉêÇëµ½ÃæÉÏÂð
ÒѾÓÐ12È˻ظ´
Ͷ¸å¾«Ï¸»¯¹¤
ÒѾÓÐ4È˻ظ´
¸ßÖ°µ¥Î»Í¶¼ÆËã»úÏà¹ØµÄ±±ºË»òSCIËÄÇøÆÚ¿¯ÍƼö£¬ÇóÖ§ÕУ¡
ÒѾÓÐ4È˻ظ´
µ¼Ê¦ÏëÈÃÎÒ´Ó¶ÀÁ¢Ò»×÷±ä³ÉÁ˹²Ò»µÚÒ»
ÒѾÓÐ9È˻ظ´
¶Á²©
ÒѾÓÐ4È˻ظ´
JMPT ÆÚ¿¯Í¶¸åÁ÷³Ì
ÒѾÓÐ4È˻ظ´
ÐÄÂöÊÜËð
ÒѾÓÐ5È˻ظ´
jmxnqred
гæ (СÓÐÃûÆø)
- ·ÒëEPI: 6
- Ó¦Öú: 0 (Ó×¶ùÔ°)
- ½ð±Ò: 18.2
- Ìû×Ó: 89
- ÔÚÏß: 9.3Сʱ
- ³æºÅ: 1017702
- ×¢²á: 2010-05-13
- רҵ: ¶¯Á¦Ñ§Óë¿ØÖÆ
¡ï ¡ï
sirljz(½ð±Ò+2):ÈÕÓïµÄ 2010-06-09 23:30:16
sirljz(½ð±Ò+2):ÈÕÓïµÄ 2010-06-09 23:30:16
| ¸Õ¹¹Á¬¾AÁº¤ÈßB¾A¤Ë?¾¤Ã¤Æ¡¢¤¤¤¯¤Ä¤«¤Î?êÓäϡ¢ŽÚ¤¯Ê¹¤ï¤ì¤Æ¤¤¸¹°åÇÅÁºÊ©¹¤¹ý³Ì¤ÎÖФË?wÁѤ¬Èë¤Ã¤¿¤È¤¤¤¦¡£±¾ÎĤϸ¹°å?ŽÁ¦ÐÔ¤ÎÁ¦Ñ§¤ò¼ÆË㤹¤ë¥³¥ó¥¯¥ê©`¥È¤ò¥¹¥È¥ì¥¹¤ÎÇé¿ö¤ÎϤǤÎÈý¤È¤ÏŒ?ÕյĤÀ¤·¡¢¥á¥¤¥ó¤Î¥¹¥È¥ì¥¹¤ò¸¹°å¥á¥¤¥ó¤Î¥¹¥È¥ì¥¹¤ä¥³¥ó¥¯¥ê©`¥È¤Îévϵ¤ò?Š¶È¿¹¸¹°å¤Ë˵Ã÷¤·¤Æ¤¤¤¿¤³¤È¤«¤é¡¢¤ÎÔÒò¤È¤Ê¤ê¤Þ¤¹¡£Œg¼Ê¡¢˜ò¤òÄ£Ä⤹¤ë3´ÎÔª¤ÎŒgÌå¤ÎÄ£ÐͤòansysÁº¡¢ßB¾A¤ÇÁ¬¾A¸Õ¹¹ÇÅÐü±Û¤«¤Ö¤ë·¨¤ò²ÉÓäµ¤ì¤Æ¤¤¤Þ¤¹¹¤¿ö½¨ºBÖФÇ4ÖÖÀà¤Î״̬¡¢¥¹¥È¥ì¥¹¸¹°å¥³¥ó¥¯¥ê©`¥È¤Î¥á¥¤¥ó¤Î¥¹¥È¥ì¥¹¤òËã³ö¤¹¤ë×î´ó10¤ÏÉϤ«¤é혤ˡ¢1.04 mpa 3.93 2.81 mpa¤ä¡¢mpa mpa¤ä- 0.47¡£ËµÃ÷¤¹¤ë¤¿¤á¤Ë¤âÓЄ¿¤ÊÔ¤Ó¦Á¦¤â¸¹°å¥³¥ó¥¯¥ê©`¥È¤Î¥á¥¤¥ó¥¹¥Æ©`¥¸¤òÖÆÓù¤¹¤ë¤³¤È¤¬¤Ç¤¸¹°å¥¹¥È¥ì¥¹¤Ï¡¢¥á¥¤¥ó¤ÎÓè·À¥³¥ó¥¯¥ê©`¥È¤òÄÚ²¿¤Ë¥¹¥È¥ì¥¹¤òÒý¤¡¢¥³¥ó¥¯¥ê©`¥È¤Î¿¹Ç¿¶È¤ò¤¹¤ëëH¤Ë¤Ï¡¢¤Þ¤º¤Ï¹¤Ê¤Ǥ⡢´Î¤ËÔ¤Ó¦Á¦?ˆâŸ¹Ç¤Ë¤â¤Ê¤é¤Ê¤¤¥ì¥Ù¥ë¤Ë´ïÔ¤Ó¦Á¦¤òö¤ò¡¢×îáá¤ËÇü¤ß¤³¤óÔ¤Ó¦Á¦¤¿¤Æ¥³¥ó¥¯¥ê©`¥È¤Î?ˆ¤Ç¤¹¡£ |
2Â¥2010-06-09 18:55:10
vingol
ľ³æ (ÕýʽдÊÖ)
- ·ÒëEPI: 5
- Ó¦Öú: 1 (Ó×¶ùÔ°)
- ½ð±Ò: 1918.9
- ºì»¨: 1
- Ìû×Ó: 416
- ÔÚÏß: 60.8Сʱ
- ³æºÅ: 607354
- ×¢²á: 2008-09-19
- רҵ: »úе¶¯Á¦Ñ§
¡ï ¡ï
wypward(½ð±Ò+1):лл²ÎÓë 2010-06-09 19:37:01
sirljz(½ð±Ò+1): 2010-06-09 23:30:23
11211121(½ð±Ò+5, ·ÒëEPI+1): 2010-06-10 14:59:09
wypward(½ð±Ò+1):лл²ÎÓë 2010-06-09 19:37:01
sirljz(½ð±Ò+1): 2010-06-09 23:30:23
11211121(½ð±Ò+5, ·ÒëEPI+1): 2010-06-10 14:59:09
| With the continuous beams and rigid frame a wide range of applications found in the construction of some bridges cracks in the web. In this paper, calculation of elasticity of concrete webs three cases to force the main tensile stress, and compared the maximum principal tensile stress within the webs and the relationship between the tensile strength of concrete, thus explain the reasons for crack web. Combined with the actual bridge, the establishment of three-dimensional solid model using ansys simulation of a continuous beam, continuous rigid frame bridge in place cantilever construction method with the four operating conditions when the stress state of concrete webs, calculated the maximum principal tensile stress, respectively: 1.04MPa , 3.93MPa, 2.81MPa and-0.47MPa. Therefore, effective control of vertical webs of prestressed concrete principal tensile stress, for the prevention of concrete principal tensile stress exceeds the internal webs of concrete tensile strength, should be first in the construction of vertical prestress tension, followed by the level of prestress tension steel, and finally tensioned prestressed reinforced vertical curve. |
3Â¥2010-06-09 19:09:58












»Ø¸´´ËÂ¥