Truss structure system for improving large-span truss power performance
A dynamic performance and truss structure technology, applied to truss structures, girders, truss beams, etc., can solve the problems of difficulty in construction, high engineering cost, large amount of steel used in the overall structure, and low structural safety, so as to reduce equipment costs , save engineering cost, reduce the effect of mechanical damping equipment
Inactive Publication Date: 2012-04-11
CHINA JINGYE ENG TECH CO LTD +1
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Problems solved by technology
This results in a large amount of steel used for the overall structure, high construction difficulty and high engineering cost; as far as the overall structural performance is concerned, it is easy to cause out-of-plane instability. Under load, the mid-span deflection is large, and the structural low security
Generally speaking, the investment in equipment is very large, and it is difficult to maintain
Method used
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[0020] Such as Figure 1~4 As shown, a truss structure system to improve the dynamic performance of long-span trusses includes several composite trusses and several steel columns, and each composite truss is composed of two juxtaposed trusses 1 and 2. The connecting parts 12 are connected by bolt-welding mixed joint; the two ends of each composite truss are respectively provided with steel columns 3, 4, and are rigidly connected with the sides of the steel columns; the steel columns 3, 4 and the foundation 13 Connected by anchor screw 14.
[0021] Between the upper chords of two adjacent combined trusses, there is a truss upper chord connecting H-shaped steel beams 5; between the lower chords, there is a truss lower chord connecting H-shaped steel beams 6.
[0022] The upper chord 7 and the lower chord 8 of the truss are all box-shaped girders with flanges; the oblique webs 9 and vertical webs 10 of the truss are both H-shaped steel beams.
[0023] The steel column is a cros...
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The invention discloses a truss structure system for improving large-span truss power performance. The truss structure system comprises a plurality of combined trusses and a plurality of steel columns, wherein each combined truss is formed by combining two parallel trusses; the two parallel trusses are connected by a connecting piece in a bolted and welded hybrid junction mode; two ends of each combined truss are respectively provided with a steel column and are in rigid connection with the side surfaces of the respective steel columns; the steel columns and a base are connected by foundation screws; a truss top chord connection H-shaped steel beam is arranged between the top chords of the two adjacent combined trusses; a truss bottom chord H-shaped steel beam is arranged between bottom chords; the top chord rod and the bottom chord rod of each truss are both box-shaped beams with a wing edge; the diagonal web member and the vertical web member of each truss are both H-shaped steel beams; the steel columns are cross steel columns; and brackets are arranged at included angles formed by the steel columns and the combined trusses. According to the truss structure system, the power performance of the truss structure is effectively improved, the comfort level of activities of people is improved, mechanical damping equipment is omitted or seldom used, and the input and maintenance cost of equipment can be reduced.
Description
technical field [0001] The invention relates to a truss structure system for improving the dynamic performance of a large-span truss, belonging to the technical field of construction engineering. Background technique [0002] With the rapid development of the national economy, people's pursuit of large space and long-span buildings is getting higher and higher. Some structural forms of long-span trusses with dynamic loads such as amusement facilities, swimming pools and crowded places on the top have also developed rapidly. For this kind of structure with large span and dynamic load design requirements on the top, the ordinary I-shaped truss structure system is mainly used in China at present, and it is often necessary to use ultra-thick steel plates and high-strength special steels, and through a large number of installations and the use of mechanical damping equipment to improve the dynamic performance and comfort of the truss structure. This results in a large amount of...
Claims
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IPC IPC(8): E04B1/342E04C3/11E04C3/32
Inventor 侯兆新刘波周建锋陈晓冬曾昭波文琳竣
Owner CHINA JINGYE ENG TECH CO LTD