CN102561508B - Steel tube concrete poling type truss mixed structure for high-rise and super high-rise buildings - Google Patents
Steel tube concrete poling type truss mixed structure for high-rise and super high-rise buildings Download PDFInfo
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Abstract
一种高层和超高层建筑钢管混凝土肢杆式桁架混合结构属于土木工程中的结构工程领域。该结构由钢管混凝土肢杆式桁架梁、桁架支撑和桁架柱构成，若干根桁架梁和桁架柱交叉排列构成四边形阵列，每个四边形内设置一根与四边形对角点连接的桁架支撑；所述的钢管混凝土肢杆式桁架梁、桁架支撑和桁架柱均为钢管混凝土肢杆式桁架，钢管混凝土肢杆式桁架由多根钢管混凝土弦杆沿长度方向连接构成，不同钢管混凝土弦杆之间通过钢管混凝土腹杆连接。该结构传力明确、性能优良、施工简便、经济性良好，构件外形尺寸更大，并且不同桁架构件之间可以相互连接形成多种组合，桁架构件内部空间可以充分利用，减少剪力墙设置，适于在高层及超高层建筑结构中应用。
A high-rise and super high-rise building concrete tube concrete limb type truss hybrid structure belongs to the field of structural engineering in civil engineering. The structure is composed of concrete-filled steel tube truss girders, truss supports and truss columns. Several truss beams and truss columns are arranged crosswise to form a quadrilateral array, and each quadrilateral is provided with a truss support connected to a diagonal point of the quadrilateral; The concrete-filled steel tube truss beams, truss supports and truss columns are all concrete-filled steel tube trusses. The concrete-filled steel tube trusses are composed of multiple steel tube concrete chords connected along the length direction. Steel tube concrete web connection. The structure has clear force transmission, excellent performance, simple construction, and good economy. The external dimensions of the components are larger, and different truss components can be connected to each other to form a variety of combinations. The internal space of the truss components can be fully utilized, reducing the setting of shear walls. It is suitable for application in high-rise and super high-rise building structures.
Description
技术领域 technical field
本发明属于土木工程中的结构工程领域，特别涉及一种高层和超高层建筑钢管混凝土肢杆式桁架混合结构。The invention belongs to the field of structural engineering in civil engineering, and in particular relates to a composite structure of steel tube concrete limb-rod truss for high-rise and super high-rise buildings.
背景技术 Background technique
目前我国已建或在建的高层或超高层建筑数量位居世界前列，据不完全统计，截止2011年，已建成或者计划中的高度超过300米的大厦已达15座。这些高层或超高层建筑的设计和建造过程也对建筑技术和建筑理论的发展起到了巨大的促进和革新作用。At present, the number of high-rise or super high-rise buildings built or under construction in my country ranks among the top in the world. According to incomplete statistics, as of 2011, 15 buildings with a height of more than 300 meters have been completed or planned. The design and construction process of these high-rise or super high-rise buildings has also played a huge role in promoting and innovating the development of building technology and building theory.
在已有的高层和超高层建筑结构体系中，随着结构体系类型不同，并且由于高度的增加，构件截面尺寸有增大的趋势，如香港中银大厦的巨型桁架结构中，钢筋混凝土实心角柱的截面尺寸为4.8米×4.1米，日本东京市政厅大厦1号楼的钢桁架截面尺寸为6.4米×6.4米，上海中心的型钢混凝土巨柱截面尺寸为3.7米×5.3米。在这个尺度上利用实心混凝土构件或者实腹式钢构件就涉及到诸如大体积混凝土浇筑和钢结构厚板加工等问题，并且构件尺寸大小仍然受到限制，不利于进一步提高结构高度。In the existing high-rise and ultra-high-rise building structural systems, with different types of structural systems and due to the increase in height, the cross-sectional size of the components tends to increase. For example, in the giant truss structure of the Bank of China Building in Hong Kong, the reinforced concrete solid corner column The section size is 4.8m x 4.1m. The steel truss section of Building No. 1 of Tokyo City Hall Building in Japan is 6.4m x 6.4m. The section size of the steel concrete giant column in Shanghai Center is 3.7m x 5.3m. The use of solid concrete members or solid-web steel members at this scale involves problems such as mass concrete pouring and steel structure slab processing, and the size of the members is still limited, which is not conducive to further increasing the height of the structure.
钢管混凝土是在钢管中填充混凝土形成的结构。在共同受力时，钢管混凝土的外钢管对核心混凝土形成了有效的约束。由于充分利用了钢材抗拉和混凝土抗压的材料特性，钢管混凝土结构比相同截面大小的钢结构或混凝土结构具有承载力高、刚度大等优点。除此之外，钢管混凝土结构还具有节省模板，施工速度快，抗震、抗火性能好等特点，因此正越来越多的在高层及超高层结构中得到应用。在此基础上发展的钢管混凝土桁架结构利用钢管混凝土作为弦杆，空钢管结构作为腹杆，具有截面开展，刚度大，抗变形能力强等特点。现有桁架结构的腹杆多为空钢管或者钢结构，破坏多为腹杆局部屈曲或者焊缝破坏，弦杆的强度能力不能得到充分发挥。因此迫切需要一种截面开展、强度高、刚度大、施工便捷、抗震性能好、自重轻的结构构件以及相应的结构形式来适应高层和超高层结构工程方面的更高需求。Concrete filled steel pipe is a structure formed by filling concrete in steel pipes. When the joint force is applied, the outer steel pipes of CFST form an effective constraint on the core concrete. Due to the full use of the material properties of steel in tension and concrete in compression, the CFST structure has the advantages of higher bearing capacity and greater rigidity than steel structures or concrete structures with the same cross-sectional size. In addition, the steel tube concrete structure also has the characteristics of saving formwork, fast construction speed, good earthquake resistance and fire resistance, so it is being applied more and more in high-rise and super high-rise structures. The concrete-filled steel tube truss structure developed on this basis uses concrete-filled steel tubes as chords and hollow steel tubes as webs, which has the characteristics of open section, high rigidity, and strong deformation resistance. The webs of the existing truss structures are mostly empty steel pipes or steel structures, and the damage is mostly caused by local buckling of the webs or weld failure, and the strength capacity of the chords cannot be fully utilized. Therefore, there is an urgent need for a structural member with open section, high strength, high rigidity, convenient construction, good seismic performance, and light weight, and the corresponding structural form to meet the higher requirements of high-rise and super high-rise structural engineering.
发明内容 Contents of the invention
本发明的目的在于为未来高层和超高层建筑结构体系的设计提供一种解决方案，可以适应高层和超高层建筑结构在使用功能以及结构高度方面更高的要求。The purpose of the present invention is to provide a solution for the design of the future high-rise and super high-rise building structure system, which can meet the higher requirements of high-rise and super high-rise building structures in terms of use function and structural height.
本发明的目的通过下述技术方案实现，由钢管混凝土肢杆式桁架梁、钢管混凝土肢杆式桁架支撑和钢管混凝土肢杆式桁架柱构成，若干根钢管混凝土肢杆式桁架梁和若干根钢管混凝土肢杆式桁架柱交叉排列构成四边形阵列，每个四边形内设置一根与四边形对角点连接的钢管混凝土肢杆式桁架支撑；The object of the present invention is achieved through the following technical solutions, which are composed of concrete-filled steel tube concrete-filled truss girders, concrete-filled steel tube truss supports and concrete-filled steel tube truss columns, several concrete-filled steel tube truss beams and several steel tubes Concrete limb truss columns are cross-arranged to form a quadrilateral array, and a steel tube concrete limb truss support connected to a diagonal point of the quadrilateral is arranged in each quadrilateral;
所述的钢管混凝土肢杆式桁架梁、钢管混凝土肢杆式桁架支撑和钢管混凝土肢杆式桁架柱均为钢管混凝土肢杆式桁架，钢管混凝土肢杆式桁架由2～10根钢管混凝土弦杆沿长度方向通过法兰盘或者焊接连接构成，不同钢管混凝土弦杆之间通过钢管混凝土腹杆用法兰盘或者焊接连接。The concrete-filled steel tube truss beams, the concrete-filled steel tube truss supports and the concrete-filled steel tube truss columns are all concrete-filled steel tube trusses, and the concrete-filled steel tube trusses consist of 2 to 10 steel tube concrete It is formed by flanges or welded connections along the length direction, and the different steel tube concrete chords are connected by flanges or welded by steel tube concrete webs.
所述钢管混凝土弦杆的横截面为矩形、圆形或椭圆形。The cross section of the concrete filled steel tube chord is rectangular, circular or elliptical.
所述钢管混凝土腹杆的横截面为矩形、圆形或椭圆形。The cross section of the steel pipe concrete web is rectangular, circular or elliptical.
所述钢管混凝土弦杆和钢管混凝土腹杆的外钢管材料为普通钢材、高强钢材或不锈钢。The material of the outer steel tubes of the concrete-filled steel tube chord and the concrete-filled steel tube web is ordinary steel, high-strength steel or stainless steel.
所述钢管混凝土弦杆和钢管混凝土腹杆的核心混凝土材料是普通混凝土或高强混凝土。The core concrete material of the concrete-filled steel tube chord and the concrete-filled steel tube web is ordinary concrete or high-strength concrete.
所述单根钢管混凝土肢杆式桁架梁、钢管混凝土肢杆式桁架支撑或钢管混凝土肢杆式桁架柱的钢管混凝土弦杆的肢数为2～8肢。The number of legs of the concrete-filled steel tube concrete-filled truss beam, the concrete-filled steel tube concrete-filled truss support or the concrete-filled steel tube chord of the steel-filled steel tube truss column is 2 to 8 legs.
本发明可以作如下改进：The present invention can be improved as follows:
钢管混凝土肢杆式桁架混合结构可以结合钢筋混凝土剪力墙和钢筋混凝土核心筒，形成外框架采用钢管混凝土肢杆桁架，内部采用钢筋混凝土剪力墙或者核心筒的混合结构。The concrete-filled steel tube leg-bar truss hybrid structure can be combined with reinforced concrete shear walls and reinforced concrete core tubes to form a hybrid structure in which the outer frame uses concrete-filled steel tube leg-bar trusses and the interior uses reinforced concrete shear walls or core tubes.
钢管混凝土肢杆桁架构件本身外围可以结合钢筋混凝土构件，形成内埋钢管混凝土肢杆桁架的钢筋混凝土墙构件，以获得更大的刚度和承载力。The outer periphery of the concrete-filled steel tube truss member can be combined with reinforced concrete members to form a reinforced concrete wall member embedded in the concrete-filled steel tube truss to obtain greater rigidity and bearing capacity.
本发明的有益效果为：The beneficial effects of the present invention are:
(1)该结构传力路径明确，刚度大，稳定性好，可适用于更高高度和跨度的建筑。(1) The structure has a clear force transmission path, high rigidity and good stability, and can be applied to buildings with higher heights and spans.
(2)肢杆桁架构件将有效材料分布在四周，截面开展，弦杆和腹杆均采用钢管混凝土，刚度大，承载力高。由于采用桁架结构，和普通实心构件相比在同样的截面面积情况下避免了超大体积混凝土浇筑等工作，也能更有效利用材料的性能。由于肢杆填充了混凝土，有效避免了钢管屈曲，提高了刚度，可以减少或部分替代剪力墙的应用。(2) The effective materials are distributed around the limb truss members, and the section is expanded. Both the chord and the web are made of steel tube concrete, which has high rigidity and high bearing capacity. Due to the truss structure, compared with ordinary solid components, it avoids the work of super-large volume concrete pouring and other work under the same cross-sectional area, and can also use the performance of materials more effectively. Since the limbs are filled with concrete, the buckling of steel pipes is effectively avoided, the rigidity is improved, and the application of shear walls can be reduced or partially replaced.
(3)抗震、抗风、抗火性能好。由于弦杆内部也填充混凝土，比传统钢管混凝土桁架承载能力更高，刚度更大，有效改善节点区域性能。比传统钢结构阻尼更大，抗风性能好，并且有更好的抗火性能。(3) Good performance in earthquake resistance, wind resistance and fire resistance. Since the inside of the chord is also filled with concrete, it has a higher load-bearing capacity and greater rigidity than the traditional CFST truss, effectively improving the performance of the node area. Compared with traditional steel structures, it has greater damping, better wind resistance, and better fire resistance.
(4)空间利用率高。桁架梁和桁架柱的内部空间可以得到有效利用，比如设置电梯间等。楼板体系可以直接搭建在主框架上，也可以采用悬挂楼板结构等，布置可以灵活多样。(4) The space utilization rate is high. The internal space of the truss beams and truss columns can be effectively used, such as setting up elevator halls, etc. The floor slab system can be built directly on the main frame, or a suspended floor slab structure can be used, and the layout can be flexible and diverse.
(5)结构体系自重较轻，阻尼比较大。(5) The structural system has light weight and relatively large damping.
(6)施工速度快。主体结构基本构件可以预制，现场建设主结构时基本不需要绑扎钢筋和搭建混凝土模板等工作。(6) The construction speed is fast. The basic components of the main structure can be prefabricated, and there is basically no need to bind steel bars and build concrete formwork when building the main structure on site.
附图说明 Description of drawings
图1为本发明的实施例的结构体系示意图；Fig. 1 is the schematic structural diagram of the embodiment of the present invention;
图2为实施例标准层平面示意图；Fig. 2 is the schematic diagram of embodiment standard layer plane;
图3为实施例梁柱节点连接的示意图；Fig. 3 is the schematic diagram of embodiment beam-column joint connection;
图4为图3中构件3的A-A横截面示意图。FIG. 4 is a schematic cross-sectional view of A-A of the member 3 in FIG. 3 .
图中标号：Labels in the figure:
1—钢管混凝土肢杆式桁架梁，2—钢管混凝土肢杆式桁架支撑，3—钢管混凝土肢杆式桁架柱，301—钢管混凝土弦杆，302—钢管混凝土腹杆，3011—外钢管，3012—核心混凝土。1—Concrete steel tube concrete truss beam, 2—Concrete steel tube truss support, 3—Concrete steel tube truss column, 301—Concrete steel tube chord, 302—Concrete steel tube web, 3011—Outer steel tube, 3012 - Core concrete.
具体实施方式 Detailed ways
本发明提供了一种高层和超高层建筑钢管混凝土肢杆式桁架混合结构，下面结合实施例和附图对本发明的结构及具体实施方式作进一步的说明。The present invention provides a hybrid structure of steel pipe concrete limb-rod truss for high-rise and super high-rise buildings. The structure and specific implementation methods of the present invention will be further described below in conjunction with the embodiments and accompanying drawings.
图1为本发明的实施例的结构体系示意图。由钢管混凝土肢杆式桁架梁1、钢管混凝土肢杆式桁架支撑2和钢管混凝土肢杆式桁架柱3构成。若干根钢管混凝土肢杆式桁架梁1和若干根钢管混凝土肢杆式桁架柱3交叉排列构成四边形阵列，两者之间通过焊接或者法兰盘连接构成。每个四边形内设置一根与四边形对角点连接的钢管混凝土肢杆式桁架支撑2，为体系提供更高的刚度和承载力。在结构体系平面布置中，钢管混凝土肢杆式桁架柱3可以加密排列在内部形成井筒，提供更高的抗侧刚度，替代剪力墙，形成抗震“二道防线”，如图2所示。楼板等结构可以直接搭架在钢管混凝土肢杆式桁架梁1上，也可以采用悬挂楼板等方式，在竖向荷载作用下，荷载通过楼板传递到钢管混凝土肢杆式桁架梁1，再由钢管混凝土肢杆式桁架梁1传递到钢管混凝土肢杆式桁架柱3直至基础。在侧向荷载作用下，荷载传递到钢管混凝土肢杆式桁架梁1和支撑，再传递到钢管混凝土肢杆式桁架柱3直至基础。Fig. 1 is a schematic structural diagram of an embodiment of the present invention. It is composed of a concrete-filled steel tube truss girder 1 , a concrete truss support 2 and a concrete truss column 3 . A plurality of concrete-filled steel tube truss beams 1 and a plurality of concrete-filled steel tube truss columns 3 are cross-arranged to form a quadrilateral array, and the two are connected by welding or flanges. A steel tube concrete leg truss support 2 connected to the diagonal points of the quadrilateral is set in each quadrilateral to provide higher rigidity and bearing capacity for the system. In the plane layout of the structural system, the concrete-filled steel tube truss columns 3 can be densely arranged inside to form a wellbore, providing higher lateral stiffness, replacing the shear wall, and forming a seismic "second line of defense", as shown in Figure 2. Structures such as floor slabs can be directly erected on the concrete-filled steel tube truss girder 1, or by hanging the slab. The concrete limb-type truss beam 1 is transferred to the steel pipe concrete limb-type truss column 3 until the foundation. Under the action of lateral load, the load is transmitted to the concrete-filled steel tube truss beam 1 and the support, and then to the concrete-filled steel tube truss column 3 to the foundation.
所述的钢管混凝土肢杆式桁架梁1、钢管混凝土肢杆式桁架支撑2和钢管混凝土肢杆式桁架柱3均为钢管混凝土肢杆式桁架，钢管混凝土肢杆式桁架由多根钢管混凝土弦杆301沿长度方向通过法兰盘或者焊接连接构成，不同钢管混凝土弦杆301之间通过钢管混凝土腹杆302用法兰盘或者焊接连接，如图3所示。钢管混凝土弦杆301和钢管混凝土腹杆302均由外钢管3011中填充核心混凝土3012构成。钢管混凝土弦杆301的横截面为矩形、圆形或椭圆形，钢管混凝土腹杆302的横截面为矩形、圆形或椭圆形，外钢管3011的材料是普通钢材、高强钢材或不锈钢，核心混凝土3012的材料是普通混凝土或高强混凝土。The concrete-filled steel tube truss beam 1, the concrete-filled steel truss support 2, and the concrete-filled truss columns 3 are all concrete-filled trusses, and the concrete-filled truss consists of a plurality of concrete chords The rods 301 are connected by flanges or welded along the length direction, and the different CFST chords 301 are connected by flanges or welded by CFST webs 302 , as shown in FIG. 3 . Both the concrete-filled steel tube chord 301 and the concrete-filled steel tube web 302 are composed of outer steel tubes 3011 filled with core concrete 3012 . The cross section of the CFST chord 301 is rectangular, circular or elliptical, the cross section of the CFST web 302 is rectangular, circular or elliptical, the material of the outer steel pipe 3011 is ordinary steel, high-strength steel or stainless steel, and the core concrete The material of 3012 is ordinary concrete or high-strength concrete.
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| CN109372123B (en) * | 2018-08-20 | 2023-08-29 | 中民筑友科技投资有限公司 | A cantilevered concrete truss building with interlayer |
| CN111188408B (en) * | 2020-02-27 | 2025-04-22 | 中建七局(上海)有限公司 | Belt truss, belt truss manufacturing method and super high-rise building giant frame |
| CN112523357B (en) * | 2020-09-04 | 2022-06-17 | 浙大城市学院 | Steel supporting cylinder-lower hanging type truss system with arc-shaped vertical face and large open hole and application |
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