CN106382041A - Assembling type swing self-resetting steel support structure system - Google Patents
Assembling type swing self-resetting steel support structure system Download PDFInfo
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 152
- 239000010959 steel Substances 0.000 title claims abstract description 152
- 230000021715 photosynthesis, light harvesting Effects 0.000 claims abstract description 12
- 229910001209 Low-carbon steel Inorganic materials 0.000 claims description 3
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- 230000002787 reinforcement Effects 0.000 description 5
- 239000004567 concrete Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 3
- 239000002131 composite material Substances 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 230000035939 shock Effects 0.000 description 3
- 238000011161 development Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000011150 reinforced concrete Substances 0.000 description 2
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- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000009417 prefabrication Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 239000003190 viscoelastic substance Substances 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H9/00—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
- E04H9/02—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate withstanding earthquake or sinking of ground
- E04H9/024—Structures with steel columns and beams
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H9/00—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
- E04H9/02—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate withstanding earthquake or sinking of ground
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Abstract
本发明公开了一种装配式摇摆自复位钢支撑结构体系，包括结构柱和结构梁，所述结构柱和所述结构梁构成主结构，所述主结构与钢支撑通过耗能元件连接，自复位拉索沿着所述钢支撑的钢柱设置，上端在所述钢支撑的钢柱顶部张拉，下端浇筑于现浇基础内，所述钢支撑由细长钢构件组成，并通过摇摆节点与所述现浇基础连接。本发明在地震时钢支撑作为一个整体发生摇摆，与主结构之间发生相对变形，引发耗能元件变形并耗散能量；震后，结构通过自复位拉索恢复到初始状态，保证结构使用功能；基本构件细长、拼接部位均采用螺栓连接，能实现在工厂生产、现场拼装，缩短现场工期，该结构体系具有建筑适应性强、抗震能力强、构造简单、施工质量高、工期短等优点。
The invention discloses an assembled swinging self-resetting steel support structure system, which includes a structural column and a structural beam, the structural column and the structural beam constitute a main structure, and the main structure is connected with the steel support through an energy-dissipating element, and automatically The reset cable is set along the steel column of the steel support, the upper end is stretched on the top of the steel column of the steel support, and the lower end is poured in the cast-in-place foundation. The steel support is composed of slender steel members and passes through the swing joint Connect with the cast-in-place foundation. In the present invention, the steel support sways as a whole during an earthquake, and relative deformation occurs between the main structure, which causes the deformation of the energy dissipation element and dissipates energy; after the earthquake, the structure returns to the original state through the self-resetting cable, ensuring the use function of the structure The basic components are slender and the splicing parts are connected by bolts, which can realize factory production and on-site assembly, and shorten the on-site construction period. This structural system has the advantages of strong architectural adaptability, strong earthquake resistance, simple structure, high construction quality, and short construction period. .
Description
技术领域technical field
本发明属于土木工程抗震结构体系领域，具体涉及一种装配式摇摆自复位钢支撑结构体系。The invention belongs to the field of anti-seismic structure systems of civil engineering, and in particular relates to an assembled swing self-resetting steel support structure system.
背景技术Background technique
地震是一种破坏性极强的突发性自然灾害，对人类社会构成严重威胁。我国是世界上地震灾害频发的地区之一，积极应对这些地震灾害是构建城乡防震减灾体系的重要工作。在土木工程领域，应对地震灾害的抗震理念经历了从增大截面的“抗震”、到附加耗散能量的“减震”和隔离地面振动的“隔震”的发展，近年来，又朝着“可恢复功能”的方向发展。由此产生了“自复位结构”和“摇摆结构”的概念。Earthquake is a sudden and extremely destructive natural disaster, which poses a serious threat to human society. my country is one of the areas in the world where earthquake disasters occur frequently. Actively responding to these earthquake disasters is an important task for building an urban and rural earthquake prevention and disaster reduction system. In the field of civil engineering, the anti-seismic concept to deal with earthquake disasters has experienced the development from the "seismic resistance" of increasing the cross-section, to the "shock absorption" of additional dissipative energy and the "seismic isolation" of isolating ground vibrations. In recent years, it has moved towards Development in the direction of "recoverable functionality". Thus, the concepts of "self-resetting structure" and "swing structure" were born.
一般的摇摆结构及自复位结构是指放松结构与基础间约束或构件间约束，使结构与基础或构件间接触面处仅有受压能力而无受拉能力，则结构在地震作用下发生摇摆，通过自重或预应力使结构复位。这为设计具有恢复功能的结构提供了一种新思路，基于这种思路人们先后开发了一些摇摆及自复位的结构体系：可自复位的球入式带翼摇摆隔震墩柱(CN 104278620 A)，自复位梁-格栅式摩擦墙结构体系(CN 203583708 U)、带可更换连梁的自复位剪力墙(CN 203626080 U)、钢筋混凝土摇摆墙、摇摆墙组件及其制作方法(CN101851965 B)、一种套筒式连接的钢筋混凝土摇摆墙组件(CN 104631616 A)、一种可恢复功能的叠合板式剪力墙(CN 203640084 U)等。这些体系多是利用混凝土材料设计的摇摆墙和构件，且多无法实现预制拼装功能；且利用剪力墙作为摇摆构件，为保证刚度，通常无法开设门、窗洞口，限制了其设置位置；同时，混凝土墙体在地震来临时，即使较小的变形也会产生一定的裂纹，后期修复需要更多的成本。The general rocking structure and self-resetting structure refer to loosening the constraints between the structure and the foundation or the constraints between the components, so that the contact surface between the structure and the foundation or the components has only the compressive capacity but no tensile capacity, and the structure will sway under the action of the earthquake. , to reset the structure by self-weight or prestress. This provides a new way of thinking for designing structures with recovery functions. Based on this way of thinking, people have successively developed some swinging and self-resetting structural systems: self-resetting ball-entry type winged swinging shock-isolation piers (CN 104278620 A ), self-resetting beam-grid friction wall structure system (CN 203583708 U), self-resetting shear wall with replaceable connecting beam (CN 203626080 U), reinforced concrete swinging wall, swinging wall assembly and manufacturing method thereof (CN101851965 B), a sleeve-connected reinforced concrete swing wall assembly (CN 104631616 A), a composite slab shear wall with recoverable function (CN 203640084 U), etc. Most of these systems are swaying walls and components designed with concrete materials, and most of them cannot realize the prefabricated assembly function; and using shear walls as swaying components, in order to ensure rigidity, it is usually impossible to open doors and window openings, which limits their installation locations; at the same time , When an earthquake strikes the concrete wall, even a small deformation will produce certain cracks, and later repairs will require more costs.
近年来，在国家的推动下，预制装配式建筑结构越来越受到重视，人们设计了多种预制装配式建筑，如一种全预制框架钢支撑结构(CN 203334474 U)、一种装配式组合钢板剪力墙(CN 204983239 U)、装配式双层钢板内填混凝土组合剪力墙结构体系(CN204983269 U)等，但这些都不具备自复位的耗能功能。随着工业化研究的推进，也有将自复位概念引入预制剪力墙中，如预制装配式自复位剪力墙结构(CN 204876196 U)等，主要借助了上、下片墙体之间的变形，利用弹簧和阻尼器形成了耗能和自复位功能，但没有使墙体充分摆动起来，未形成摇摆墙的减震形式。In recent years, under the impetus of the state, more and more attention has been paid to prefabricated building structures. People have designed a variety of prefabricated buildings, such as a fully prefabricated frame steel support structure (CN 203334474 U), a prefabricated composite steel plate Shear wall (CN 204983239 U), prefabricated double-layer steel plate filled concrete composite shear wall structure system (CN204983269 U), etc., but these do not possess the energy consumption function of self-resetting. With the advancement of industrialization research, the self-resetting concept has also been introduced into prefabricated shear walls, such as the prefabricated self-resetting shear wall structure (CN 204876196 U), etc., which mainly rely on the deformation between the upper and lower walls. The energy dissipation and self-resetting functions are formed by using the spring and the damper, but the wall body is not fully swayed, and the shock absorption form of the swing wall is not formed.
因此，充分考虑预制装配式结构的特点，利用钢结构比混凝土结构预制化程度高的优势，设计一种预制装配式的摇摆钢支撑体系，将摇摆结构、自复位和耗能减震的理念融为一体，能够为新建建筑施工和既有建筑加固改造的工业化提供一个新的思路。Therefore, fully considering the characteristics of the prefabricated structure, taking advantage of the steel structure's higher degree of prefabrication than the concrete structure, a prefabricated swaying steel support system is designed, which integrates the concepts of swaying structure, self-resetting and energy dissipation and shock absorption. As a whole, it can provide a new idea for the industrialization of new building construction and existing building reinforcement and transformation.
发明内容Contents of the invention
本发明的目的在于克服现有技术存在的问题，提供一种装配式摇摆自复位钢支撑结构体系。The purpose of the present invention is to overcome the problems existing in the prior art and provide an assembled swing self-resetting steel support structure system.
为实现上述技术目的，达到上述技术效果，本发明通过以下技术方案实现：In order to achieve the above-mentioned technical purpose and achieve the above-mentioned technical effect, the present invention is realized through the following technical solutions:
一种装配式摇摆自复位钢支撑结构体系，包括结构柱和结构梁，所述结构柱和所述结构梁构成主结构，所述主结构与钢支撑通过耗能元件连接，自复位拉索沿着所述钢支撑的钢柱设置，上端在所述钢支撑的钢柱顶部张拉，下端浇筑于现浇基础内，所述钢支撑通过摇摆节点与所述现浇基础连接；An assembled swing self-resetting steel support structure system, including structural columns and structural beams, the structural columns and the structural beams constitute the main structure, the main structure is connected to the steel support through energy-dissipating elements, and the self-resetting cables are along the The steel column of the steel support is arranged, the upper end is stretched on the top of the steel column of the steel support, and the lower end is poured in the cast-in-place foundation, and the steel support is connected to the cast-in-place foundation through a swing node;
所述钢支撑3包括钢柱、钢梁、钢支撑短段和钢支撑长段，所述钢柱、所述钢梁、所述钢支撑短段和所述钢支撑长段为H型截面或工字型截面等钢构件截面形式。The steel support 3 includes a steel column, a steel beam, a short section of steel support and a long section of steel support, and the steel column, the steel beam, the short section of steel support and the long section of steel support are H-shaped sections or Sectional forms of steel members such as I-shaped section.
进一步的，所述钢支撑还包括梁柱节点、钢柱节点和支撑节点，所述梁柱节点、所述钢柱节点和所述支撑节点均为螺栓连接形式。Further, the steel support further includes a beam-column node, a steel column node and a support node, and the beam-column node, the steel column node and the support node are all connected by bolts.
进一步的，所述摇摆节点由上部斜撑、下部斜撑、上部加劲短梁、下部加劲短梁和钢锚栓组成；所述上部斜撑下端与所述上部加劲短梁焊接连接，上部斜撑上端在通过端板法兰与所述钢支撑底部连接；所述下部斜撑上端与所述下部加劲短梁焊接连接，下端埋至所述现浇基础；所述钢锚栓上半部分通过螺母与所述上部加劲短梁固接，下半部分插入所述下部加劲短梁的套筒内；摇摆节点采用板铰。Further, the swing joint is composed of upper diagonal braces, lower diagonal braces, upper short stiffened beams, lower stiffened short beams and steel anchor bolts; the lower ends of the upper diagonal braces are welded to the upper stiffened short beams, and the upper ends of the upper diagonal braces are The end plate flange is connected to the bottom of the steel support; the upper end of the lower brace is welded to the lower stiffened short beam, and the lower end is buried in the cast-in-place foundation; the upper part of the steel anchor is connected to the lower part through a nut The upper short stiffened beam is fixedly connected, and the lower half is inserted into the sleeve of the lower stiffened short beam; the swing joint adopts a plate hinge.
进一步的，所述耗能元件通过螺栓一端与所述主结构相连，另一端与所述钢支撑的节点连接，采用软钢的耗能连接或者采用粘弹性或摩擦的耗能连接形式；所述自复位拉索采用张拉预应力的高强钢绞线或采用形状记忆合金。Further, one end of the energy-dissipating element is connected to the main structure through a bolt, and the other end is connected to the node of the steel support, using a mild steel energy-dissipating connection or a viscoelastic or frictional energy-dissipating connection; the The self-resetting cable adopts tensioned prestressed high-strength steel strands or shape memory alloys.
进一步的，所述自复位拉索布置于摇摆的所述钢支撑的两端或中部。Further, the self-resetting cable is arranged at both ends or in the middle of the swinging steel support.
优选的，采用柱、梁、斜撑等细长钢构件作为基本元件，便于运输和安装；钢支撑短段、钢支撑长段作为斜撑为钢支撑提供了大部分的抗侧刚度，充分利用了钢材的特性；通过构造钢支撑的不同形式，可为门、窗洞口的预留空间，相较于摇摆墙更便于建筑上的处理。Preferably, slender steel members such as columns, beams, and diagonal braces are used as basic components, which are convenient for transportation and installation; the short steel support section and the long steel support section are used as diagonal braces to provide most of the lateral stiffness for the steel support, making full use of The characteristics of steel are fully understood; through the different forms of structural steel support, space can be reserved for door and window openings, which is more convenient for architectural processing than swing walls.
本发明的有益效果:Beneficial effects of the present invention:
本发明在地震时，钢梁、钢柱和钢支撑构成的钢支撑体系具备较大的抗侧刚度，作为一个整体保持弹性、围绕摇摆节点发生摇摆，与主结构之间产生相对变形，引发耗能元件变形并耗散能量；震后，结构通过自复位拉索恢复到初始状态，能够保持使用功能；体系拼接部位均采用螺栓连接，能够实现在工厂生产、现场拼装，缩短了现场工期。该结构体系具有抗震能力强、构造简单、施工质量高、工期短等优点。In the present invention, during an earthquake, the steel support system composed of steel beams, steel columns and steel supports has relatively large lateral rigidity, maintains elasticity as a whole, swings around the swing nodes, and produces relative deformation with the main structure, causing loss of energy. The energy components deform and dissipate energy; after the earthquake, the structure returns to its original state through the self-resetting cable, which can maintain the function of use; the splicing parts of the system are connected by bolts, which can realize factory production and on-site assembly, shortening the on-site construction period. The structural system has the advantages of strong earthquake resistance, simple structure, high construction quality and short construction period.
附图说明Description of drawings
图1是本发明的立面结构示意图；Fig. 1 is the elevation structure schematic diagram of the present invention;
图2是本发明的摇摆节点构造示意图；Fig. 2 is a schematic diagram of the swing node structure of the present invention;
图3是本发明的摇摆节点另一种构造示意图；Fig. 3 is a schematic diagram of another structure of the swing node of the present invention;
图4是本发明的耗能元件采用粘弹性材料时的构造示意图；Fig. 4 is a schematic structural view of the energy dissipation element of the present invention when viscoelastic materials are used;
图5是本发明的耗能元件采用摩擦耗能时的构造示意图；Fig. 5 is a schematic diagram of the structure of the energy dissipation element of the present invention when it adopts frictional energy dissipation;
图6（a）是本发明用于既有建筑加固时外附摇摆钢支撑布置位置平面示意图；Fig. 6(a) is a schematic plan view of the arrangement position of the external swing steel support when the present invention is used for the reinforcement of existing buildings;
图6（b）是本发明用于既有建筑加固时内嵌摇摆钢支撑布置位置平面示意图；Figure 6(b) is a schematic plan view of the arrangement position of the embedded swing steel support when the present invention is used for the reinforcement of existing buildings;
图6（c）是本发明用于既有建筑加固时摇摆钢支撑布置位置立面示意图；Figure 6(c) is a schematic diagram of the elevation of the arrangement position of the swaying steel support when the present invention is used for the reinforcement of existing buildings;
图7是本发明的另一种预制拼装形式。Fig. 7 is another kind of prefabricated assembled form of the present invention.
图中标号说明：1、结构柱，2、结构梁，3、钢支撑，31、钢柱，32、钢梁，33、钢支撑短段，34、钢支撑长段，35、梁柱节点，36、钢柱节点，37、支撑节点，4、耗能元件，5、自复位拉索，6、现浇基础，7、摇摆节点，71、上部斜撑，72、下部斜撑，73、上部加劲短梁，74、下部加劲短梁，75、钢锚栓。Explanation of symbols in the figure: 1. Structural column, 2. Structural beam, 3. Steel support, 31. Steel column, 32. Steel beam, 33. Short section of steel support, 34. Long section of steel support, 35. Beam-column node, 36. Steel column node, 37. Support node, 4. Energy dissipation element, 5. Self-resetting cable, 6. Cast-in-place foundation, 7. Swing node, 71. Upper diagonal brace, 72. Lower diagonal brace, 73. Upper part Stiffened short beam, 74, lower stiffened short beam, 75, steel anchor bolt.
具体实施方式detailed description
下面将参考附图并结合实施例，来详细说明本发明。The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.
参照图1-5所示，一种装配式摇摆自复位钢支撑结构体系，包括结构柱1和结构梁2，所述结构柱1和所述结构梁2构成主结构，所述主结构与钢支撑3通过耗能元件4连接，自复位拉索5沿着所述钢支撑3的钢柱31设置，上端在所述钢支撑3的钢柱31顶部张拉，下端浇筑于现浇基础6内，所述钢支撑3通过摇摆节点7与所述现浇基础6连接；Referring to Figures 1-5, an assembled rocking self-resetting steel support structure system includes a structural column 1 and a structural beam 2, the structural column 1 and the structural beam 2 constitute the main structure, and the main structure and steel The support 3 is connected by the energy dissipation element 4, the self-resetting cable 5 is set along the steel column 31 of the steel support 3, the upper end is stretched on the top of the steel column 31 of the steel support 3, and the lower end is cast in the cast-in-place foundation 6 , the steel support 3 is connected to the cast-in-place foundation 6 through a swing node 7;
所述钢支撑3包括钢柱31、钢梁32、钢支撑短段33和钢支撑长段34，所述钢柱31、所述钢梁32、所述钢支撑短段33和所述钢支撑长段34为H型截面或工字型截面。The steel support 3 includes a steel column 31, a steel beam 32, a short steel support section 33 and a long steel support section 34, and the steel column 31, the steel beam 32, the short steel support section 33 and the steel support The long section 34 is an H-shaped section or an I-shaped section.
进一步的，所述钢支撑3还包括梁柱节点35、钢柱节点36和支撑节点37，所述梁柱节点35、所述钢柱节点36和所述支撑节点37均为螺栓连接形式。Further, the steel support 3 also includes a beam-column node 35, a steel column node 36 and a support node 37, and the beam-column node 35, the steel column node 36 and the support node 37 are all in the form of bolt connection.
进一步的，所述摇摆节点7由上部斜撑71、下部斜撑72、上部加劲短梁73、下部加劲短梁74和钢锚栓75组成；所述上部斜撑71下端与所述上部加劲短梁73焊接连接，上部斜撑71上端在通过端板法兰与所述钢支撑3底部连接；所述下部斜撑72上端与所述下部加劲短梁74焊接连接，下端埋至所述现浇基础6；所述钢锚栓75上半部分通过螺母与所述上部加劲短梁73固接，下半部分插入所述下部加劲短梁74的套筒内。摇摆节点7还可采用附图3所示的板铰形式。Further, the swing node 7 is composed of an upper diagonal brace 71, a lower diagonal brace 72, an upper stiffening short beam 73, a lower stiffening short beam 74 and a steel anchor bolt 75; the lower end of the upper diagonal brace 71 is connected to the upper stiffening short The beam 73 is welded and connected, and the upper end of the upper diagonal brace 71 is connected to the bottom of the steel support 3 through the end plate flange; the upper end of the lower diagonal brace 72 is welded to the lower stiffened short beam 74, and the lower end is buried in the cast-in-place Foundation 6; the upper half of the steel anchor bolt 75 is fixedly connected to the upper short stiffening beam 73 through a nut, and the lower half is inserted into the sleeve of the lower stiffening short beam 74 . The rocking node 7 can also adopt the plate hinge form shown in accompanying drawing 3.
进一步的，所述耗能元件4通过螺栓一端与所述主结构的节点相连，另一端与所述钢支撑3的节点连接，采用软钢的耗能连接或者采用粘弹性或摩擦的耗能连接形式；所述自复位拉索5采用张拉预应力的高强钢绞线或采用形状记忆合金。Further, one end of the energy-dissipating element 4 is connected to the node of the main structure through a bolt, and the other end is connected to the node of the steel support 3, and the energy-dissipating connection of mild steel or the energy-dissipating connection of viscoelasticity or friction is adopted. Form: the self-resetting cable 5 adopts tensioned and prestressed high-strength steel strands or adopts shape memory alloys.
进一步的，所述自复位拉索5布置于摇摆的所述钢支撑3的两端或中部。Further, the self-resetting cable 5 is arranged at both ends or in the middle of the swinging steel support 3 .
优选的，当地震来临时，钢支撑3绕摇摆节点7转动，通过耗能元件4的变形耗散地震能量，钢锚栓75抵抗剪力，震后利用自复位拉索5复位。Preferably, when an earthquake strikes, the steel support 3 rotates around the swing node 7 to dissipate the seismic energy through the deformation of the energy dissipation element 4, the steel anchor bolt 75 resists the shear force, and resets with the self-resetting cable 5 after the earthquake.
进一步的，为提高其预制拼装的能力，可采用多个钢支撑单元拼接的方式（如附图7），即在工厂内通过焊接形式将钢柱31、钢梁32和斜撑焊接成一个小的钢支撑单元，到施工现场后，可通过螺栓连接将多个钢支撑单元拼接成一个钢支撑体系。Further, in order to improve its prefabricated assembly ability, multiple steel support units can be spliced (as shown in Figure 7), that is, steel columns 31, steel beams 32 and diagonal braces are welded into a small After arriving at the construction site, multiple steel support units can be spliced into a steel support system through bolt connection.
本发明的原理：Principle of the present invention:
将摇摆钢支撑3与框架结构结合，形成框架摇摆钢支撑结构体系，将钢支撑3底部从固接变成了铰接，结构体系基本周期延长，钢支撑3承载力需求减小。钢梁、钢柱和斜向支撑构成的钢支撑体系具有较大的刚度，当地震来临时，摇摆钢支撑3绕底部摇摆节点7摇摆、保持弹性状态，与主结构之间产生相对位移，诱发耗能元件变形耗散地震能量，；地震发生后，由于自复位拉索5的存在，结构具有较高的恢复初始位置的能力。与此同时，大部分拼接节点采用螺栓连接，使摇摆结构具有了预制拼装的特性。The swing steel support 3 is combined with the frame structure to form a frame swing steel support structure system, the bottom of the steel support 3 is changed from fixed to hinged, the basic period of the structural system is extended, and the demand for the bearing capacity of the steel support 3 is reduced. The steel support system composed of steel beams, steel columns and oblique supports has relatively high rigidity. When an earthquake strikes, the swaying steel supports 3 sway around the bottom sway nodes 7 and maintain an elastic state, causing relative displacement with the main structure, which induces The deformation of the energy-dissipating element dissipates the seismic energy; after the earthquake, due to the existence of the self-resetting cable 5, the structure has a high ability to restore the original position. At the same time, most of the spliced joints are connected by bolts, giving the rocking structure the characteristics of prefabricated assembly.
本发明的实施步骤：Implementation steps of the present invention:
（1）根据设计和施工要求，在工厂加工钢支撑3中的钢柱31、钢梁32、钢支撑短段33和钢支撑长段34；加工摇摆节点7中的上部斜撑71、下部斜撑72、上部加劲短梁73和下部加劲短梁74，其中上部斜撑71和上部加劲短梁73焊接连接，下部斜撑72和下部加劲短梁74焊接连接。(1) According to design and construction requirements, process steel column 31, steel beam 32, short steel support section 33 and long steel support section 34 in steel support 3 in the factory; process upper diagonal brace 71 and lower diagonal brace in swing node 7 The brace 72, the upper stiffened short beam 73 and the lower stiffened short beam 74, wherein the upper diagonal brace 71 is welded to the upper stiffened short beam 73, and the lower diagonal brace 72 is welded to the lower stiffened short beam 74.
（2）在结构现场浇筑现浇基础6，其中下部斜撑72下半部分浇筑在现浇基础6内，且自复位拉索5的下端及其锚具也浇筑于现浇基础6内。(2) The cast-in-place foundation 6 is poured on the structure site, wherein the lower part of the lower brace 72 is poured in the cast-in-place foundation 6 , and the lower end of the self-resetting cable 5 and its anchorage are also poured in the cast-in-place foundation 6 .
（3）现场拼接钢柱31、钢梁32成钢框架形式、随后将钢支撑长段34通过螺栓连接嵌入钢框架中，再将钢支撑短段33接入框架；钢支撑3整体拼接完成后,通过螺栓连接与上部支撑71固接，将钢锚栓75通过螺母固接于上部加劲短梁73。(3) On-site splicing of steel columns 31 and steel beams 32 into a steel frame form, then the long steel support section 34 is embedded into the steel frame through bolt connection, and then the short steel support section 33 is connected to the frame; after the overall splicing of the steel support 3 is completed , is fixedly connected to the upper support 71 through bolt connection, and the steel anchor bolt 75 is fixedly connected to the upper stiffened short beam 73 through nuts.
（4）吊装钢支撑3和摇摆节点7，定位安装，将钢锚栓75插入下部加劲短梁74的套筒内，在主结构与钢支撑3之间安装简单的临时支架。(4) Lift the steel support 3 and the swing node 7, position and install, insert the steel anchor bolt 75 into the sleeve of the lower stiffening short beam 74, and install a simple temporary bracket between the main structure and the steel support 3.
（5）随后将自复位拉索5穿过预留孔洞至钢支撑3顶部，并在此张拉并锚固拉索；将耗能元件4通过螺栓连接安装于钢支撑3的节点和主结构的节点之间。(5) Then pass the self-resetting cable 5 through the reserved hole to the top of the steel support 3, and tension and anchor the cable here; install the energy dissipation element 4 on the node of the steel support 3 and the main structure through bolt connection between nodes.
（6）结构安装完成后，撤去主结构与钢支撑3之间的临时支架。(6) After the structure installation is completed, remove the temporary support between the main structure and the steel support 3.
以上所述的仅是本发明的优选实施方式，应当指出，对于本领域的技术人员来说，在不脱离本发明结构的前提下，还可以做出若干变形和改进，如采用附图6的方式实现对既有建筑的抗震加固，采用附图7的方式通过多个钢支撑单元拼接的方式实现预制装配，或采用人字形支撑等其它钢支撑形式，这些也应该视为本发明的保护范围，这些都不会影响本发明实施的效果和专利的实用性。The above is only the preferred embodiment of the present invention, it should be pointed out that for those skilled in the art, without departing from the structure of the present invention, some deformations and improvements can also be made, such as using the accompanying drawing 6 To realize the anti-seismic reinforcement of existing buildings, adopt the method of Figure 7 to realize prefabricated assembly through the splicing of multiple steel support units, or use other steel support forms such as herringbone supports, these should also be regarded as the scope of protection of the present invention , these will not affect the effect of the present invention's implementation and the practicability of the patent.
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