CN103790229B - A kind of multilayer cantilever steel construction and constructive method thereof - Google Patents
A kind of multilayer cantilever steel construction and constructive method thereof Download PDFInfo
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- CN103790229B CN103790229B CN201410043081.3A CN201410043081A CN103790229B CN 103790229 B CN103790229 B CN 103790229B CN 201410043081 A CN201410043081 A CN 201410043081A CN 103790229 B CN103790229 B CN 103790229B
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Abstract
The invention discloses a kind of multilayer cantilever steel construction, including bottom cantilever frame structure, middle level building cover structure, roof network, end network, elevationally outward network, main post, vertically contact rod member, horizontal connection rod member and node composition。The invention also discloses the constructive method of multilayer cantilever steel construction, constituting step is: 1, mounting body column；2, installing bottom layer cantilever frame structure, middle level building cover structure, roof network；3, truss root rod member is installed；4, network elevationally outward is installed；5, purlin horizontal connection rod member and node；6, mounting end network。Invention enhances the globality of cantilevered structure, improve the safety redundancy of cantilevered structure, more large cantilever can not only be realized and cross over, also improve the economy of long cantilever construction；Structural member cross section can be optimized further, and then reduce member section, improve safety of structure。
Description
Technical field
The present invention relates to civil engineering work construction applications, more detail is one and encorbelment multi-storey steel structure and constructive method thereof。
Background technology
Along with Chinese Urbanization development process, especially go up north the extensively international big city such as deep in China, all occur in that serious " building squeezes people " situation, thus it is no longer livable to become city；People thirst for having enough ground spaces, thus occurring in that the building conception of more cantilevered structure。Also has a kind of phenomenon, along with Urban Underground track traffic is constantly busy, Subway Vibration can to resident and to vibration sensing building affect greatly, as: precision instrument laboratory, museum etc. build, under Subway Vibration frequently, the safety of precision instrument and cultural relics in the collection of cultural institution all can not be protected；In order to hide subway impact, also meeting construction area, some buildings are encorbelmented on subway for having to, such as Chengdu museum。But, the rigidity of general cantilevered structure is only the 1/8 of freely supported structure rigidity, and under identical load action, cantilevered structure deformation can be greatly increased, and structural redundancy is not high yet, and the safety of cantilevered structure also is difficult to ensure。
Summary of the invention
For problem above, it is an object of the invention to provide a kind of multilayer cantilever steel construction, for building structure realizes the level functional requirement to the aerial architectural effect stretched and extension building usable floor area。
For realizing the purpose of the present invention, the solution of the present invention is a kind of multilayer cantilever steel construction, including bottom cantilever frame structure, middle level building cover structure, roof network, end network, elevationally outward network, main post, vertically contacts rod member, horizontal connection rod member and node；
It is fixedly connected with between bottom cantilever frame structure, middle level building cover structure, roof network and vertically contacts rod member, constitute huge vierendeel truss；
Main post extends vertically into building foundation, its along away from direction of encorbelmenting at least provided with two row, the main stress component of bottom cantilever frame structure and middle level building cover structure all at least extends the first row main post away from direction of encorbelmenting and secondary series main post place, and fixing with the main post of its process is connected；
Bottom cantilever frame structure is fixedly installed truss root rod member between first row main post and secondary series main post, and truss root rod member is fixing with first row main post and secondary series main post to be connected；
Network bottom support is on building foundation elevationally outward, is connected with bottom cantilever frame structure, middle level building cover structure by horizontal connection rod member and node；
End network is connected by horizontal connection rod member and node with bottom cantilever frame structure and middle level building cover structure；Two networks elevationally outward are connected by vertically fixing for end network。
As preferably, at the one or more floors within district of encorbelmenting, it is parallel to network direction, end, is provided with brace, form plane girder with the rod member of the floor rod member of middle level building cover structure or roof network。
As preferably, the grid configuration of network can be triangle, tetragon, pentagon or hexagon elevationally outward。
As preferably, roof network can be polygonal mesh structure, it is also possible to for orthogonal primary-secondary beam structure。
As preferably, roof network may be coupled on main post。
As preferably, roof network is connected with network elevationally outward and end network。
The invention also discloses the constructive method of multilayer cantilever steel construction, constitute successively as follows:
First step mounting body column；
Second step installing bottom layer cantilever frame structure, middle level building cover structure, roof network, arrange some vertical contact rod members between three, with bottom cantilever frame structure for support end, supports middle level building cover structure and roof network；
3rd step truss installs truss root rod member after tentatively unloading；
4th step installs network elevationally outward；
5th step truss installs horizontal connection rod member between network and bottom cantilever frame structure, middle level building cover structure and roof network and node elevationally outward after having unloaded；
6th step mounting end network。
There is advantages that
(1) propose a kind of multilayer cantilever steel construction, by arranging multiple load system, enhance the globality of cantilevered structure, improve the safety redundancy of cantilevered structure, more large cantilever can not only be realized and cross over, also improve the economy of cantilevered structure；
(2) constructive method of a kind of multilayer cantilever steel construction is proposed, reasonably constitute step and erection sequence by arranging, reduce the internal inharmonious stress of structural system, it is possible to optimize structural member cross section further, and then reduction member section, improve safety of structure。
Accompanying drawing explanation
Fig. 1 is multilayer cantilever steel construction axonometric chart；
Fig. 2 is multilayer cantilever steel construction top view；
Fig. 3 is multilayer cantilever steel construction A-A profile；
Fig. 4 is multilayer cantilever steel construction B-B profile；
Fig. 5 is end network plane graph；
Fig. 6 is network plane graph elevationally outward。
In figure, 1, bottom cantilever frame structure；2, middle level building cover structure；3, roof network；4, end network；5, network elevationally outward；61, first row main post；62, secondary series main post；7, rod member is vertically contacted；8, horizontal connection rod member and node；9, brace。
Detailed description of the invention
Below in conjunction with accompanying drawing, by embodiment, the present invention will be further described。
As shown in figures 1 to 6, a kind of multilayer cantilever steel construction of the present invention specifically includes that and includes bottom cantilever frame structure 1, middle level building cover structure 2, roof network 3, end network 4, elevationally outward network 5, main post, vertical contact rod member 7, horizontal connection rod member and node 8；Roof network 3 is connected on main post, is fixedly connected with vertical contact rod member 7, constitutes huge vierendeel truss between bottom cantilever frame structure 1, middle level building cover structure 2, roof network 3；Roof network can be polygonal mesh structure, it is also possible to for orthogonal primary-secondary beam structure。
As shown in Figure 3, main post extends vertically into building foundation, its along away from direction of encorbelmenting at least provided with two row, the main stress component of bottom cantilever frame structure 1 and middle level building cover structure 2 all at least extends the first row main post 61 away from direction of encorbelmenting and secondary series main post 62 place, and fixing with the main post of its process is connected；Bottom cantilever frame structure 1 is provided with truss root rod member 10 between first row main post 61 and secondary series main post 62, and truss root rod member 10 is fixed be connected with first row main post 61 and secondary series main post 62。
Network 5 bottom support is on building foundation elevationally outward, fix by horizontal connection rod member and node 8 be connected with bottom cantilever frame structure 1, middle level building cover structure 2, roof network 3, the grid configuration of network 5 can be tetragon elevationally outward, such as rhombus, it is also possible to for polygons such as triangle, pentagon or hexagons。Mesh spacing and bar cross section are determined according to topological optimization and Design of Bearing Capacity。
End network 4 is connected by horizontal connection rod member and node 8 with bottom cantilever frame structure 1, middle level building cover structure 2 and roof network 3。
As shown in Figure 6, at the one or more floors within district of encorbelmenting, it is parallel to end network 4 direction, is provided with brace 9, form plane girder with the rod member of the floor rod member of middle level building cover structure 2 or roof network 3。
Bottom cantilever frame structure, middle level building cover structure, roof network, elevationally outward network, main post, end network six part are main stress component；Its medial end portions network is enclosed by ABCD in Fig. 14 and forms, a kind of multilayer cantilever structure of the present invention utilize elevationally outward network as the main stress system in district of encorbelmenting；Utilize inner side main body column support bottom cantilever frame structure as the main stress system of district's second of encorbelmenting；Bottom cantilever frame structure, multiple middle levels building cover structure, roof network is utilized to constitute huge vierendeel truss with main post, as district the 3rd main stress system in road of encorbelmenting；The globality in district of encorbelmenting is strengthened by end network。
Additionally, at some floor encorbelmented within district, be parallel to network direction, end, arrange brace 9, as shown in Figure 4, by the floor rod member composition plane girder of brace 9 with upper and lower two middle level building cover structures 2, the globality in district of encorbelmenting is strengthened；Brace 9 can also form plane girder with the rod member of the floor rod member of middle level building cover structure 2 and roof network 3；Brace can be arranged on the first floor in district of encorbelmenting, it is also possible to is arranged on the intermediate layer in district of encorbelmenting, it is also possible to is arranged on the top layer in district of encorbelmenting。Certainly, consistent with the method to set up of above-mentioned brace 9, it is also possible at multiple storey setting braces in district of encorbelmenting, to form multiple plane girder。
The step that is embodied as of the multilayer cantilever steel construction of the present invention is:
First step mounting body column。Main post is vertically taken root in building foundation, and along away from direction of encorbelmenting at least provided with two row。
Second step with main post for rest, installing bottom layer cantilever frame structure (without truss root rod member)；Being subsequently mounted middle level building cover structure and roof network, the number of plies of middle level building cover structure is no less than 1 layer, and middle level building cover structure and roof network are all connected with main post；Some vertical contact rod members (post not landed) are set between bottom cantilever frame structure, middle level building cover structure and roof network, constitute huge vierendeel truss。With bottom cantilever frame structure 1 for support end, support middle level building cover structure 2 and roof network 3。
3rd step truss installs truss root rod member 10 after tentatively unloading, and the truss root rod member 10 being fixedly installed in bottom cantilever frame structure is fixed be connected with first row main post 61 and secondary series main post 62。
4th step, after inside structure has been constituted, installs network 5 elevationally outward。Network 5 bottom support is on building foundation elevationally outward, is connected with bottom cantilever frame structure 1, middle level building cover structure 2 and roof network 3 by horizontal connection rod member and node 8。
5th step truss installs horizontal connection rod member and node 8 after having unloaded, and horizontal connection rod member and node 8 is arranged on elevationally outward between network 5 and bottom cantilever frame structure 1, middle level building cover structure 2 and roof network 3。
6th step mounting end network 4。Truss root rod member 10 is fixedly connected on first row main post 61 and secondary series main post 62。Connecting two networks elevationally outward by vertically fixing for end network, end network is fixing in the horizontal direction is connected to bottom cantilever frame structure, middle level building cover structure and roof network, makes one entirety of district's formation of encorbelmenting。
It is finally noted that, the purpose publicizing and implementing mode is in that help is further appreciated by the present invention, but it will be appreciated by those skilled in the art that: without departing from the spirit and scope of the invention and the appended claims, and various substitutions and modifications are all possible。Therefore, the present invention should not be limited to embodiment disclosure of that, and the scope that the scope of protection of present invention defines with claims is as the criterion。
Claims (5)
1. a multilayer cantilever steel construction, it is characterized in that, including bottom cantilever frame structure (1), middle level building cover structure (2), roof network (3), end network (4), elevationally outward network (5), main post, vertically contact rod member (7), horizontal connection rod member and node (8)；
It is fixedly connected with between bottom cantilever frame structure (1), middle level building cover structure (2), roof network (3) and vertically contacts rod member (7), constitute huge vierendeel truss；
Main post extends vertically into building foundation, its along away from direction of encorbelmenting at least provided with two row, the main stress component of bottom cantilever frame structure (1) and middle level building cover structure (2) all at least extends the first row main post (61) away from direction of encorbelmenting and secondary series main post (62) place, and fixing with the main post of its process is connected；
Bottom cantilever frame structure (1) is positioned between first row main post (61) and secondary series main post (62) and is fixedly installed truss root rod member (10), and truss root rod member (10) is fixing with first row main post (61) and secondary series main post (62) to be connected；
Network (5) bottom support is on building foundation elevationally outward, being connected with bottom cantilever frame structure (1), middle level building cover structure (2) by horizontal connection rod member and node (8), the grid configuration of network (5) is triangle, tetragon, pentagon or hexagon elevationally outward；
End network (4) is connected by horizontal connection rod member and node (8) with bottom cantilever frame structure (1) and middle level building cover structure (2)；Two networks elevationally outward are connected by vertically fixing for end network；Roof network (3) is connected on main post。
2. multilayer cantilever steel construction according to claim 1, it is characterized in that, at the one or more floors within district of encorbelmenting, it is parallel to end network (4) direction, it is provided with brace (9), forms plane girder with the rod member of the floor rod member of middle level building cover structure (2) or roof network (3)。
3. multilayer cantilever steel construction according to claim 1, it is characterised in that roof network (3) is polygon latticed lattice structure or orthogonal primary-secondary beam structure。
4. multilayer cantilever steel construction according to claim 1, it is characterised in that roof network (3) is connected with network elevationally outward (5) and end network (4)。
5. the constructive method of multilayer cantilever steel construction according to claim 1, it is characterised in that constitute successively as follows:
First step mounting body column；
Second step installing bottom layer cantilever frame structure (1), middle level building cover structure (2), roof network (3), some vertical contact rod members (7) are set between three, with bottom cantilever frame structure (1) for support end, support middle level building cover structure (2) and roof network (3)；
3rd step truss installs truss root rod member (10) after tentatively unloading；
4th step installs network (5) elevationally outward；
5th step truss installs horizontal connection rod member between network (5) and bottom cantilever frame structure (1), middle level building cover structure (2) and roof network (3) and node (8) elevationally outward after having unloaded；
6th step mounting end network (4)。
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| CN201410043081.3A CN103790229B (en) | 2014-01-29 | 2014-01-29 | A kind of multilayer cantilever steel construction and constructive method thereof |
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| CN103790229B true CN103790229B (en) | 2016-06-22 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104929364B (en) * | 2015-07-06 | 2017-03-22 | 广东省第四建筑工程有限公司 | Auxiliary construction method for longspan cantilever entire laminated Vierendeel truss structure |
| CN109372097B (en) * | 2018-08-20 | 2023-10-20 | 筑友智造智能科技有限公司 | Assembled concrete truss building structure |
| CN109281405B (en) * | 2018-08-20 | 2023-10-20 | 筑友智造智能科技有限公司 | Assembled interlayer arrangement concrete truss overhanging type building |
| CN112443043B (en) * | 2020-11-25 | 2022-02-22 | 浙大城市学院 | Multilayer through-height large-space cantilever truss structure with embedded small orthotropic truss and application |
| CN112982669B (en) * | 2021-02-09 | 2022-09-16 | 清华大学建筑设计研究院有限公司 | Eccentric annular large-cantilever prestressed steel structural system and construction method thereof |
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| JP2001317122A (en) * | 2000-05-10 | 2001-11-16 | Akira Tanaka | Building |
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| JP2001317122A (en) * | 2000-05-10 | 2001-11-16 | Akira Tanaka | Building |
| CN201343822Y (en) * | 2009-01-12 | 2009-11-11 | 中国建筑第八工程局有限公司 | Large span cantilevered concrete truss |
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