Ứng dụng etabs trong tính toán công trìNH
Ch¬ng 2: KÕt cÊu hÖ thanh
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| Ch¬ng 2: KÕt cÊu hÖ thanh
.................................... 28 1. Tæng quan vÒ phÇn tö thanh .................................................................................... 28 1.1. PhÇn tö thanh (Frame Element) ........................................................................ 28 1.1.1. Kh¸i niÖm ................................................................................................... 28 1.1.2. øng dông .................................................................................................... 28 1.2. HÖ trôc täa ®é ®Þa ph¬ng (Local Coordinate System) ...................................... 28 1.2.1. Kh¸i niÖm ................................................................................................... 28 1.2.2. MÆc ®Þnh ..................................................................................................... 28 1.2.3. HiÖu chØnh .................................................................................................. 29 1.3. BËc tù do (Degree of Freedom) ......................................................................... 30 1.4. Khèi lîng (Mass) ............................................................................................. 30 2. TiÕt diÖn (Frame Section) ........................................................................................ 30 2.1. Khai b¸o tiÕt diÖn .............................................................................................. 30 2.2. Thanh cã tiÕt diÖn thay ®æi (Non-Prismatic Sections) ........................................ 31 2.3. TiÕt diÖn kh«ng cã h×nh d¹ng x¸c ®Þnh (General) .............................................. 32 TRUNG TÂM Đ ÀO T Ạ O XÂY D Ự NG VIETCONS www.vietcons.edu.vn øng dông ETABS trong tÝnh to¸n c«ng tr×nh 5 2.4. Thay ®æi th«ng sè tiÕt diÖn ................................................................................ 33 2.4.1. Th«ng sè h×nh häc vµ c¬ häc cña tiÕt diÖn .................................................. 33 2.4.2. Thay ®æi c¸c th«ng sè h×nh häc vµ c¬ häc .................................................. 35 3. Liªn kÕt gi÷a hai phÇn tö .......................................................................................... 36 3.1. §iÓm chÌn (Insertion point) ............................................................................... 36 3.1.1. Kh¸i niÖm ................................................................................................... 36 3.1.2. Ph¬ng ph¸p khai b¸o ................................................................................ 37 3.2. §iÓm giao (End offsets) ..................................................................................... 39 3.2.1. Kh¸i niÖm ................................................................................................... 39 3.2.2. Ph¬ng ph¸p khai b¸o ................................................................................ 39 3.3. Liªn kÕt Release (Frame Releases and Partial Fixity) ....................................... 40 3.3.1. Kh¸i niÖm ................................................................................................... 40 3.3.2. Ph¬ng ph¸p khai b¸o ................................................................................ 41 4. Tù ®éng chia nhá phÇn tö (Automatic Frame Subdivide) .......................................... 41 4.1. Kh¸i niÖm .......................................................................................................... 41 4.2. Ph¬ng ph¸p khai b¸o ...................................................................................... 41 tải về 6.82 Mb. Chia sẻ với bạn bè của bạn:
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