Design method of long-span and short-span combined large-span structure
A design method and large-span technology, applied in special data processing applications, instruments, electrical digital data processing, etc., can solve the problems of large internal forces of supports and lower support structures, large bending moments at the bottom of support structures, and poor economic indicators. To achieve the effect of clear principle, improved seismic performance and wide application range
Active Publication Date: 2020-09-29
BEIJING INST OF ARCHITECTURAL DESIGN
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Problems solved by technology
When the horizontal stiffness of the lower support structure is relatively large, if the ordinary spherical joint support is still used at this time, it will cause the support (the first support 1, the second support 2, the third support 3 and the fourth support 4) Under the temperature condition, the horizontal thrust is large, the temperature internal force of the long-span structure is large, and the bottom bending moment of the support structure is large, resulting in large internal force, large cross-section and poor economic indicators of the large-span structure, support and lower support structure
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[0044]The technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Apparently, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0045] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, o...
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The invention relates to the technical field of large-span structures, in particular to a design method of a long-span and short-span combined large-span structure. According to the long-span and short-span combined large-span structure design method by adopting batch installation and batch stress of supports, a far-end support is firstly installed and stressed, the pulling force of the far-end support is effectively eliminated, the design difficulty of the support is greatly reduced, meanwhile, the pressure of the near-end support is greatly reduced, it is guaranteed that all the supports arein a pressed state, and the structural safety is guaranteed; and due to the fact that the pressure of the near-end support is greatly reduced, the section size of the corresponding lower supporting structure is remarkably reduced, and good economic benefits are obtained.
Description
technical field [0001] The invention relates to the technical field of long-span structures, in particular to a design method for a long-span structure with a combination of long and short spans. Background technique [0002] Large-span structures are generally supported on the lower supporting structure by bearings. Common long-span structures can be in the form of trusses, grid frames, reticulated shells, etc.; the bearings often use spherical joint bearings that can rotate in space; the lower supporting structures can be foundations, columns, shear walls, etc. At present, structural construction generally follows the bottom-up sequence of "lower support structure→support→long-span structure". The conventional design method for long-span structures is to activate the support once in the calculation model, and the self-weight and additional dead load of the structure are also loaded on the long-span structure as a dead load condition. According to the combination of intern...
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IPC IPC(8): G06F30/13G06F119/14
CPCG06F30/13G06F2119/14
Inventor 朱忠义周忠发王哲秦凯王毅梁宸宇张琳孙桐海闫晓京唐艺峤
Owner BEIJING INST OF ARCHITECTURAL DESIGN