CN108824918A - Self-resetting can assemble the girder pre-stressed accentric support steel frame of multistage after shake - Google Patents
Self-resetting can assemble the girder pre-stressed accentric support steel frame of multistage after shake Download PDFInfo
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 105
- 239000010959 steel Substances 0.000 title claims abstract description 105
- 239000004567 concrete Substances 0.000 claims abstract description 10
- 238000003466 welding Methods 0.000 claims description 16
- 229920002379 silicone rubber Polymers 0.000 claims description 14
- 239000004945 silicone rubber Substances 0.000 claims description 13
- 238000010276 construction Methods 0.000 claims description 11
- 239000002131 composite material Substances 0.000 claims description 9
- 230000002787 reinforcement Effects 0.000 claims description 5
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- 229920003052 natural elastomer Polymers 0.000 description 1
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- E—FIXED CONSTRUCTIONS
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- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/24—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of metal
- E04B1/2403—Connection details of the elongated load-supporting parts
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- 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
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- E04H9/024—Structures with steel columns and beams
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- E—FIXED CONSTRUCTIONS
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- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/24—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of metal
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- E04B2001/2406—Connection nodes
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/24—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of metal
- E04B1/2403—Connection details of the elongated load-supporting parts
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Abstract
Description
技术领域technical field
本发明涉及一种震后自复位可装配多段梁预应力偏心支撑钢框架，属于防震减灾技术领域。The invention relates to a post-earthquake self-resettable multi-segment beam prestressed eccentrically supported steel frame, which belongs to the technical field of earthquake prevention and disaster reduction.
背景技术Background technique
日本钢结构住宅占全部住宅的60％以上，多次地震证明钢结构建筑相对于钢筋混凝土建筑抗震性能大大提高，震后修复难度大大降低。因此我国大力发展钢结构建筑是提高我国居民住房质量的必由之路，尤其是科技含量高的钢结构形式更应得到重视与发展。Japan's steel structure houses account for more than 60% of all houses. Multiple earthquakes have proved that steel structure buildings have greatly improved seismic performance compared with reinforced concrete buildings, and the difficulty of post-earthquake repairs has been greatly reduced. Therefore, my country's vigorous development of steel structure buildings is the only way to improve the quality of residential housing in our country, especially the form of steel structure with high technological content should be paid more attention to and developed.
我国钢结构预应力技术发展迅速，其中最具代表性的为北京工业大学体育馆，该馆的弦支穹顶结构应用预应力技术,达到轻盈、节能的效果，我国多所知名院校在大跨度预应力钢结构体系创新方面具有创新性研究。但在框架结构体系中，尤其是局部节点处应用预应力技术研究很少，深度远远不够。my country's steel structure prestressing technology has developed rapidly, and the most representative one is the Beijing University of Technology Gymnasium. There are innovative researches on the innovation of stress steel structure system. However, in the frame structure system, especially the application of prestressing technology at local joints is rarely studied, and the depth is far from enough.
高强度抗撕裂硅橡胶是一种特殊的合成橡胶，具有优良的耐高、低温，化学性质稳定，防火，无毒的特点，尤其是其抗撕裂性能及抗张强度相比传统天然橡胶得到很大提高，抗张强度可得到2000N/CM2，在国防工业、航空、宇宙航行、电器、医疗器械等领域应用广泛，但在建筑结构中应用尚属空白，但其本身具有的高强度、高伸缩率及其防火无毒的特性符合建筑结构对土木工程材料的要求，应积极探索使用途径，使其优良性能得到充分发挥。High-strength tear-resistant silicone rubber is a special synthetic rubber with excellent high and low temperature resistance, stable chemical properties, fire prevention, and non-toxic characteristics, especially its tear resistance and tensile strength compared with traditional natural rubber It has been greatly improved, and the tensile strength can reach 2000N/CM 2 . It is widely used in the fields of national defense industry, aviation, space navigation, electrical appliances, medical equipment, etc., but it is still blank in the application of building structures, but its own high strength , high expansion rate and its fire-proof and non-toxic properties meet the requirements of building structures for civil engineering materials, and we should actively explore ways to use them to give full play to their excellent performance.
发明内容Contents of the invention
本发明提出了一种属于防震减灾技术领域的震后自复位可装配多段梁预应力偏心支撑钢框架。其目的在于提高框架结构延性性能进而提高结构抗震性能，减少震后修复难度与维护费用，缩减施工工期，降低人工成本。震后自复位可装配多段梁预应力偏心支撑钢框架基本构成包括框架柱、节点梁、中间梁、预应力索、梁柱节点连接件及梁梁连接件等构件。施工顺序：先安装梁柱节点、再安装梁梁节点。具体构造是在施工过程中，先安装梁柱节点处的顶底角钢，然后安装梁柱节点的工字钢腹板角钢，梁柱节点安装后，安装梁梁节点：先安装梁梁节点的腹板连接板，再安装顶底高强度抗撕裂硅橡胶板及密封板，最后对高强预应力索进行安装并张拉，在预应力索张拉力的作用下梁梁接触面产生预压应力，这种预压应力将为梁梁节点提供较大的抵抗弯矩，使连接强度大大提高，而梁梁节点处的腹板连接板有效增加了腹板厚度为梁梁节点提供较大的抵抗剪力。The invention provides a post-earthquake self-resettable multi-segment beam prestressed eccentrically supported steel frame belonging to the technical field of earthquake prevention and disaster reduction. Its purpose is to improve the ductility performance of the frame structure and then improve the seismic performance of the structure, reduce the difficulty of post-earthquake repair and maintenance costs, shorten the construction period, and reduce labor costs. The post-earthquake self-resetting assembleable multi-segment beam prestressed eccentrically braced steel frame basically consists of frame columns, node beams, intermediate beams, prestressed cables, beam-column node connectors, and beam-to-beam connectors. Construction sequence: first install the beam-column joints, and then install the beam-beam joints. The specific structure is that during the construction process, first install the top and bottom angle steel at the beam-column joint, and then install the I-beam web angle steel at the beam-column joint. After the beam-column joint is installed, install the beam-beam joint: first install the web Then install the top and bottom high-strength tear-resistant silicone rubber plates and sealing plates, and finally install and stretch the high-strength prestressed cables. This kind of precompressive stress will provide greater resistance to bending moment for beam-to-beam joints, greatly improving the connection strength, and the web connection plate at beam-to-beam joints effectively increases the thickness of the web to provide greater shear resistance for beam-to-beam joints force.
震后自复位可装配多段梁预应力偏心支撑钢框架基本原理：当地震作用达到中震水平时，梁梁接触面率先张开，高强度硅橡胶出现较大变形并消耗地震能量，从而避免了梁柱等主体构件的损坏。地震作用后，结构在预应力索的预拉力及高强度硅橡胶的收缩力作用下恢复到震前位置。研究表明，梁梁连接处的高强度硅橡胶与预应力索的结合在正常使用工作状态下可以达到焊接的强度，使用过程中产生的挠度小于规范规定的最大挠度；在地震作用下，高强度硅橡胶及预应力索可发挥其优良的伸缩性能，吸收地震能量，进而使梁柱节点得到保护，符合“强节点，弱构件”及“强柱弱梁”的设计理念。The basic principle of prestressed eccentrically supported steel frame with self-resetting multi-segment beams can be assembled after the earthquake: when the earthquake action reaches the level of moderate earthquakes, the contact surface of beams and beams opens first, and the high-strength silicone rubber undergoes large deformation and consumes seismic energy, thereby avoiding Damage to main components such as beams and columns. After the earthquake, the structure returns to the pre-earthquake position under the action of the pretension force of the prestressed cable and the contraction force of the high-strength silicone rubber. Studies have shown that the combination of high-strength silicone rubber and prestressed cables at the beam-beam joint can reach the strength of welding under normal working conditions, and the deflection generated during use is less than the maximum deflection specified in the code; under earthquake action, the high-strength Silicone rubber and prestressed cables can exert their excellent expansion and contraction properties, absorb earthquake energy, and then protect the beam-column joints, which conforms to the design concepts of "strong nodes, weak components" and "strong columns and weak beams".
预应力索及高强度硅橡胶的应用使钢框架结构能够得到较好的抗震性能和较高的安全系数。震后自复位可装配多段梁预应力偏心支撑钢框架的主要优点：(1)新技术与新材料的有机结合使钢框架具有更好的抗震性能，预应力技术的应用使震后修复难度大大降低，在位移角较小的情况下本发明可利用预应力索及高强度硅橡胶的弹性收缩能力实现自复位，无需修复；(2)正常使用工作状态下可以达到焊接的强度，使用过程中产生的挠度小于规范规定的最大挠度；(3)主要通过高强螺栓连接，施工现场没有焊接工作，更没有传统混凝土结构的湿作业，工序简便、绿色环保，螺栓连接更易保证施工质量，避免因施工人员个人素质不高、焊接材料不佳、抢工等原因造成的焊缝质量差进而造成结构质量安全事故的产生；(4)全螺栓连接形式可实现建筑结构的工厂化制造、装配化施工，大大降低工期成本与人工成本。The application of prestressed cables and high-strength silicone rubber enables the steel frame structure to obtain better seismic performance and higher safety factor. The main advantages of post-earthquake self-resetting and assembling multi-segment beam prestressed eccentrically supported steel frames: (1) The organic combination of new technology and new materials makes the steel frame have better seismic performance, and the application of prestressing technology makes post-earthquake repairs much more difficult The present invention can realize self-resetting by using the elastic shrinkage ability of prestressed cables and high-strength silicone rubber when the displacement angle is small; The resulting deflection is less than the maximum deflection specified in the code; (3) It is mainly connected by high-strength bolts. There is no welding work on the construction site, and there is no wet operation of traditional concrete structures. Poor quality of welds caused by poor personal quality of personnel, poor welding materials, rush to work and other reasons lead to structural quality and safety accidents; (4) The form of full bolt connection can realize factory manufacturing and assembly construction of building structures Greatly reduce construction period cost and labor cost.
本发明采用的技术方案为震后自复位可装配多段梁预应力偏心支撑钢框架，工字钢梁通过腹板角钢及翼缘角钢，与不同形式的异形柱连接，形成无焊缝全螺栓的连接形式；所述中部工字梁与端部工字梁通过腹板连接板及高强硅橡胶板连接，形成延性性能好、耗能性能强的无焊缝全螺栓连接形式；对无焊缝全螺栓中部工字梁与端部工字梁连接处施加预应力钢索，形成预应力震后自复位节点；依次连接各个节点及预应力偏心支撑后，装配预制混凝土-压型钢板组合楼板或浇筑混凝土楼板组装预应力偏心支撑构件，构成震后自复位可装配多段梁偏心支撑钢框架结构体系；The technical scheme adopted in the present invention is self-resetting after the earthquake, which can be assembled with multi-segment beam prestressed eccentrically supported steel frame. Connection form; the middle I-beam and the end I-beam are connected through the web connecting plate and high-strength silicon rubber plate to form a non-welded full-bolt connection form with good ductility and strong energy dissipation performance; Prestressed steel cables are applied to the connection between the I-beam in the middle of the bolt and the I-beam at the end to form a prestressed self-resetting node after an earthquake; after connecting each node and prestressed eccentric support in turn, assemble a precast concrete-profiled steel composite floor or pour Concrete slabs are assembled with prestressed eccentric support members to form a post-earthquake self-resettable multi-segment beam eccentrically supported steel frame structure system;
异形柱的形式为L形柱1、T形柱2和十字形柱3；The forms of special-shaped columns are L-shaped column 1, T-shaped column 2 and cross-shaped column 3;
根据所在位置不同，节点形式包括三种规格，分别为L形节点连接，T形节点连接，十字形节点连接；Depending on the location, the node form includes three specifications, which are L-shaped node connection, T-shaped node connection, and cross-shaped node connection;
所述十字形节点连接是十字形柱3与端部工字梁4连接。具体连接步骤：吊装设备将端部工字梁4与十字形柱3垂直紧密接触，腹板角钢5作为连接件用高强螺栓将端部工字梁4与十字形柱3连为一体，安装过程中务必保证端部工字梁4垂直于十字形柱3，再用高强螺栓安装翼缘角钢6以增加梁柱节点处的转动刚度，达到固结；The cross-shaped node connection is the connection between the cross-shaped column 3 and the end I-beam 4 . Specific connection steps: the hoisting equipment makes the end I-beam 4 and the cross-shaped column 3 vertically and closely contacted, and the web angle steel 5 is used as a connecting piece to connect the end I-beam 4 and the cross-shaped column 3 with high-strength bolts. The installation process Make sure that the end I-beam 4 is perpendicular to the cross-shaped column 3, and then install the flange angle steel 6 with high-strength bolts to increase the rotational stiffness at the beam-column joint to achieve consolidation;
中部工字梁7与端部工字梁4的连接步骤：吊装设备将中部工字梁7与端部工字梁4接触并在同一水平面上，腹板连接板8作为两段梁的连接件用高强螺栓将中部工字梁7与端部工字梁4连为一体，而后用高强螺栓安装高强硅橡胶板9与密封板10；The connection steps of the middle I-beam 7 and the end I-beam 4: the hoisting equipment will contact the middle I-beam 7 and the end I-beam 4 on the same horizontal plane, and the web connecting plate 8 is used as the connecting piece of the two sections of beams Connect the middle I-beam 7 and the end I-beam 4 together with high-strength bolts, and then install the high-strength silicone rubber plate 9 and the sealing plate 10 with high-strength bolts;
所述L形节点连接形式、T形节点连接形式与十字形节点连接形式相同。只是十字形柱3分别采用L形柱1与T形柱2；L形节点连接是框架角部框架柱即L形柱1与端部工字梁4连接；T形节点连接是T形柱2与端部工字梁4连接；十字形节点连接是十字形柱3与端部工字梁4连接。The L-shaped node connection form and the T-shaped node connection form are the same as the cross-shaped node connection form. Only the cross-shaped column 3 adopts L-shaped column 1 and T-shaped column 2 respectively; the L-shaped node connection is the frame corner frame column, that is, the L-shaped column 1 is connected with the end I-beam 4; the T-shaped node connection is T-shaped column 2 It is connected with the I-beam 4 at the end; the cross-shaped node connection is the connection between the cross-shaped column 3 and the I-beam 4 at the end.
节点预应力的布置方式：连接各个不同形式的节点；将预应力棒11依次穿过预留在工字梁加强件12上的孔洞，施加计算的预应力值，用永久锚具锚固在工字梁加强件12上。Arrangement of node prestressing: connect various nodes of different forms; pass prestressing rods 11 through the holes reserved on the I-beam reinforcement 12 in sequence, apply the calculated prestress value, and use permanent anchors to anchor the I-beam Beam reinforcement 12.
预应力偏心支撑包括人字形抗侧力构件、V字形抗侧力构件和单斜杆式抗侧力构件，人字形抗侧力构件、V字形抗侧力构件由预应力索15、耳板I 13和耳板II 14组成；耳板I13通过焊接或者螺栓连接于中部工字钢梁7上，预应力索15和耳板I 13通过螺栓连接；耳板II 14通过焊接或者螺栓连接于框架柱及端部工字梁4的节点处，预应力索15和耳板II 14通过螺栓连接；预应力索15通过将附带在预应力索15上的连接套拧紧施加预应力；所述预应力索15为高强度钢棒，或者使用高强度钢绞线、高强度型钢构件，或者使用带阻尼器的高强度钢棒、高强度钢绞线或者高强度型钢构件。The prestressed eccentric support includes a herringbone anti-lateral force component, a V-shaped anti-lateral force component and a single-slope anti-lateral force component. 13 and ear plate II 14; the ear plate I13 is connected to the middle I-beam 7 by welding or bolts, the prestressed cable 15 and the ear plate I 13 are connected by bolts; the ear plate II 14 is connected to the frame column by welding or bolts And at the joint of the end I-beam 4, the prestressed cable 15 and the ear plate II 14 are connected by bolts; the prestressed cable 15 applies prestress by tightening the connecting sleeve attached to the prestressed cable 15; the prestressed cable 15 is a high-strength steel bar, or use a high-strength steel strand, a high-strength section steel component, or use a high-strength steel bar with a damper, a high-strength steel strand or a high-strength section steel component.
单斜杆式抗侧力构件由预应力索15、耳板I13组成；耳板I13通过焊接或者螺栓连接于端部工字梁4处，预应力索15耳板I13通过螺栓连接；另一耳板I13通过焊接或者螺栓连接于端部工字梁4处，预应力索15和耳板I13通过螺栓连接；预应力索15通过将附带在预应力索15上的连接套拧紧施加预应力；所述预应力索为高强度钢棒，或者使用高强度钢绞线、高强度型钢构件，或者使用带阻尼器的高强度钢棒、高强度钢绞线或者高强度型钢构件。The single-slope anti-lateral force component is composed of prestressed cables 15 and ear plates I13; the ear plates I13 are connected to the end I-beam 4 by welding or bolts, and the prestressed cables 15 and ear plates I13 are connected by bolts; the other ear The plate I13 is connected to the I-beam 4 at the end by welding or bolts, and the prestressed cable 15 and the ear plate I13 are connected by bolts; the prestressed cable 15 applies prestress by tightening the connecting sleeve attached to the prestressed cable 15; The prestressed cables are high-strength steel rods, or use high-strength steel strands, high-strength steel components, or use high-strength steel rods with dampers, high-strength steel strands or high-strength steel components.
采用预制混凝土-压型钢板组合楼板，混凝土板17在工厂浇筑，压型钢板16作为底模浇筑为整体，或者混凝土板17在施工现场现浇；Prefabricated concrete-profiled steel composite floor slab is adopted, the concrete slab 17 is poured in the factory, and the profiled steel plate 16 is poured as a whole as a bottom form, or the concrete slab 17 is cast in-situ at the construction site;
逐步安装后组成框架结构体系，楼板使用预制混凝土-压型钢板组合楼板。After being installed step by step, the frame structure system is formed, and the floor slab is made of prefabricated concrete-profiled steel plate composite floor slab.
本发明的有益效果是，在上述震后自复位可装配多段梁预应力偏心支撑钢框架中，所采用的梁均为工字钢梁，取材容易，且工字梁的腹部空隙较大，便于管线穿过，有效地增加了房间净高。The beneficial effect of the present invention is that, in the post-earthquake self-resettable multi-segment beam prestressed eccentrically supported steel frame, the beams used are all I-shaped steel beams, which are easy to obtain materials, and the abdominal gap of the I-shaped beam is relatively large, which is convenient Pipelines run through, effectively increasing the headroom of the room.
所述震后自复位可装配多段梁预应力偏心支撑钢框架，耗能位置为梁梁拼接处，且该处为弹性设计，既符合“强节点、弱构件”的设计要求，又能保证结构构件的安全，以柔性的设计抵御高烈度地震；安装过程中无一处施焊，全部采用机械安装高强螺栓，有效保证了施工质量，减少环境污染；由于本发明采用全螺栓连接方式，在建筑拆除时，可以松动螺栓，逐个构件的拆除，钢材被高效回收利用，减少建筑垃圾的产生，真正的实现了绿色环保的理念，因此本发明是一种抗震性能好、绿色环保、可持续发展的钢结构节点。The post-earthquake self-resetting can be assembled with multi-segment beam prestressed eccentrically supported steel frames. The energy dissipation position is the beam-beam joint, and this position is elastically designed, which not only meets the design requirements of "strong nodes, weak components", but also ensures the structure The safety of the components can withstand high-intensity earthquakes with a flexible design; there is no welding in the installation process, and all high-strength bolts are mechanically installed, which effectively ensures the construction quality and reduces environmental pollution; When dismantling, the bolts can be loosened, and the components can be dismantled one by one, the steel can be efficiently recycled, the generation of construction waste can be reduced, and the concept of green environmental protection is truly realized. Steel structure nodes.
所述震后自复位可装配多段梁预应力偏心支撑钢框架，将预应力技术应用在梁梁连接的部位，实现了震后结构构件的自复位，大大减少了震后修复成本；提高梁柱节点的抗震性能，从而提高框架结构体系的抗震性能。The post-earthquake self-resetting can be assembled with a multi-segment beam prestressed eccentrically supported steel frame, and the prestressing technology is applied to the beam-beam connection, which realizes the self-resetting of post-earthquake structural members, greatly reduces post-earthquake repair costs; improves beam-column The anti-seismic performance of the joints, thereby improving the anti-seismic performance of the frame structure system.
所述震后自复位可装配多段梁预应力偏心支撑钢框架解决了传统钢结构建筑节点薄弱的现状，充分发挥了钢结构的延性性能好的优势。与传统的钢结构建筑节点相比，它具有抗震性能好，环境污染小，安全事故少和修复难度低等诸多优点。The post-earthquake self-resetting and assembling multi-segment beam prestressed eccentrically supported steel frame solves the current situation of weak joints in traditional steel structures, and gives full play to the advantages of good ductility of steel structures. Compared with traditional steel structure building nodes, it has many advantages such as good seismic performance, less environmental pollution, fewer safety accidents and less difficulty in repairing.
附图说明Description of drawings
下面结合附图和实施例对本发明进一步说明。The present invention will be further described below in conjunction with the accompanying drawings and embodiments.
图1是本发明的L形柱、T形柱、十字形柱示意图Fig. 1 is the schematic diagram of L-shaped column, T-shaped column and cross-shaped column of the present invention
图2是本发明的梁柱节点拆分示意图Fig. 2 is the split schematic diagram of the beam-column node of the present invention
图3是本发明的梁梁连接拆分示意图Fig. 3 is a schematic diagram of beam-beam connection disassembly of the present invention
图4是本发明的框架节点整体拆分示意图Fig. 4 is a schematic diagram of the overall split of the framework node of the present invention
图5是本发明的L形节点示意图Fig. 5 is the L-shaped node schematic diagram of the present invention
图6是本发明的T形节点示意图Fig. 6 is a T-shaped node schematic diagram of the present invention
图7是本发明的十字形节点示意图Fig. 7 is a cross-shaped node schematic diagram of the present invention
图8是本发明的人字形预应力偏心支撑钢框架示意图Fig. 8 is a schematic diagram of the herringbone prestressed eccentrically supported steel frame of the present invention
图9是本发明的V字形预应力偏心支撑钢框架示意图Fig. 9 is a schematic diagram of a V-shaped prestressed eccentrically supported steel frame of the present invention
图10是本发明的单根预应力偏心支撑钢框架示意图Fig. 10 is a schematic diagram of a single prestressed eccentrically supported steel frame of the present invention
图11是本发明的预制混凝土-压型钢板组合楼板Fig. 11 is the composite floor of prefabricated concrete-profiled steel plate of the present invention
图12是本发明的偏心支撑框架结构体系示意图Fig. 12 is a schematic diagram of the eccentric support frame structure system of the present invention
图中1.L形柱，2.T形柱，3.十字形柱，4.端部工字梁，5.腹板角钢,6.翼缘角钢，7.中部工字梁，8.腹板连接板，9.高强硅橡胶板，10.密封板，11.预应力棒，12.工字梁加强件，13.耳板I，14.耳板II，15.预应力索，16.压型钢板，17.混凝土板In the figure 1. L-shaped column, 2. T-shaped column, 3. Cross-shaped column, 4. End I-beam, 5. Web angle steel, 6. Flange angle steel, 7. Middle I-beam, 8. Web Plate connecting plate, 9. High-strength silicone rubber plate, 10. Sealing plate, 11. Prestressed rod, 12. I-beam reinforcement, 13. Ear plate I, 14. Ear plate II, 15. Prestressed cable, 16. Profiled steel plate, 17. Concrete slab
具体实施方式Detailed ways
下面结合附图对本发明进行详细说明：The present invention is described in detail below in conjunction with accompanying drawing:
如附图1所示，本发明所述震后自复位可装配多段梁预应力偏心支撑钢框架中，所涉及的异形柱分别为：L形柱1，T形柱2，十字形柱3；As shown in Figure 1, in the prestressed eccentrically supported steel frame of multi-segment beam prestressed beams that can be assembled after the earthquake, the special-shaped columns involved are: L-shaped column 1, T-shaped column 2, and cross-shaped column 3;
如附图2所示，本发明所述震后自复位可装配多段梁预应力偏心支撑钢框架中，主要包括L形、T形、十字形节点形式，以十字形节点为例在图中进行拆分，所述十字形节点连接是框架中部框架柱3与端部工字梁4连接。具体连接步骤：吊装设备将端部工字梁4与框架柱3垂直紧密接触，腹板角钢5作为连接件用高强螺栓将端部工字梁4与框架柱3连为一体，安装过程中务必保证端部工字梁4垂直于框架柱3，再用高强螺栓安装翼缘角钢6以增加梁柱节点处的转动刚度，以达到固结的效果；As shown in accompanying drawing 2, in the post-earthquake self-resettable multi-section beam prestressed eccentrically supported steel frame of the present invention, it mainly includes L-shaped, T-shaped, and cross-shaped joint forms, and the cross-shaped joint is taken as an example in the figure. Splitting, the cross-shaped node connection is the connection between the frame column 3 in the middle of the frame and the I-beam 4 at the end. Specific connection steps: The hoisting equipment makes the end I-beam 4 and the frame column 3 vertically and closely contacted, and the web angle steel 5 is used as a connecting piece to connect the end I-beam 4 and the frame column 3 with high-strength bolts. Ensure that the I-beam 4 at the end is perpendicular to the frame column 3, and then install the flange angle steel 6 with high-strength bolts to increase the rotational stiffness at the beam-column node to achieve the effect of consolidation;
如附图3所示，本发明所述震后自复位可装配多段梁预应力偏心支撑钢框架中，中部工字梁7与端部工字梁4的连接步骤：吊装设备将中部工字梁7与端部工字梁4接触并在同一水平面上，腹板连接板8作为两段梁的连接件用高强螺栓将中部工字梁7与端部工字梁4连为一体，而后用高强螺栓安装高强硅橡胶板9与密封板10；As shown in accompanying drawing 3, in the post-earthquake self-resettable multi-segment beam prestressed eccentrically supported steel frame of the present invention, the connection steps of the middle I-beam 7 and the end I-beam 4: hoisting equipment puts the middle I-beam 7 is in contact with the end I-beam 4 and is on the same horizontal plane. The web connecting plate 8 is used as a connector of the two sections of beams to connect the middle I-beam 7 and the end I-beam 4 with high-strength bolts, and then use high-strength bolts to Install the high-strength silicone rubber plate 9 and the sealing plate 10 with bolts;
如附图4所示，本发明所述震后自复位可装配多段梁预应力偏心支撑钢框架中，节点连接分为两部分一部分为梁柱连接，另一部分为中部工字梁7与端部工字梁4连接；As shown in accompanying drawing 4, in the post-earthquake self-resettable multi-section beam prestressed eccentric support steel frame of the present invention, the node connection is divided into two parts, one is beam-column connection, and the other part is the middle I-beam 7 and the end I-beam 4 connection;
如附图5-7所示，本发明所述的震后自复位可装配多段梁预应力偏心支撑钢框架中，节点的形式有三种，分别为L形，T形，十字形；As shown in accompanying drawings 5-7, in the post-earthquake self-resettable multi-segment beam prestressed eccentrically supported steel frame of the present invention, there are three types of joints, which are L-shaped, T-shaped, and cross-shaped;
如附图8-9所示，本发明所述的震后自复位可装配多段梁预应力偏心支撑钢框架中，其人字形、V字形抗侧力构件由预应力索、耳板I和耳板II组成；耳板I通过焊接或者螺栓连接于中部工字钢梁上，预应力索和耳板I通过螺栓连接；耳板II通过焊接或者螺栓连接于框架柱及端部工字梁的节点处，预应力索和耳板II通过螺栓连接；预应力索通过将附带在预应力索上的连接套拧紧施加预应力；所述预应力索为高强度钢棒，或者使用高强度钢绞线、高强度型钢构件，或者使用带阻尼器的高强度钢棒、高强度钢绞线或者高强度型钢构件。As shown in accompanying drawing 8-9, in the post-earthquake self-resetting multi-section beam prestressed eccentrically supported steel frame of the present invention, its herringbone and V-shaped lateral force resistance members are composed of prestressed cables, lugs I and lugs. The plate II is composed of; the ear plate I is connected to the middle I-beam by welding or bolts, and the prestressed cable and the ear plate I are connected by bolts; the ear plate II is connected to the frame column and the node of the end I-beam by welding or bolts , the prestressed cable and ear plate II are connected by bolts; the prestressed cable is prestressed by tightening the connecting sleeve attached to the prestressed cable; the prestressed cable is a high-strength steel rod, or a high-strength steel strand , high-strength steel members, or use high-strength steel rods with dampers, high-strength steel strands or high-strength steel members.
如附图10所示，本发明所述的震后自复位可装配多段梁预应力偏心支撑钢框架中，其单斜杆式抗侧力构件由预应力索、耳板I组成；耳板I通过焊接或者螺栓连接于端部工字梁处，预应力索耳板I通过螺栓连接；另一耳板I通过焊接或者螺栓连接于端部工字梁处，预应力索和耳板I通过螺栓连接；预应力索通过将附带在预应力索上的连接套拧紧施加预应力；所述预应力索为高强度钢棒，或者使用高强度钢绞线、高强度型钢构件，或者使用带阻尼器的高强度钢棒、高强度钢绞线或者高强度型钢构件。As shown in accompanying drawing 10, in the post-earthquake self-resetting multi-section beam prestressed eccentric support steel frame that can be assembled according to the present invention, its single-slope anti-lateral force member is composed of prestressed cables and lugs I; lugs I It is connected to the I-beam at the end by welding or bolts, and the prestressed ear plate I is connected by bolts; the other ear plate I is connected to the I-beam at the end by welding or bolts, and the prestressed cable and ear plate I are connected by bolts Connection; the prestressed cable is prestressed by tightening the connecting sleeve attached to the prestressed cable; the prestressed cable is a high-strength steel rod, or uses a high-strength steel strand, a high-strength steel member, or uses a damper High-strength steel rods, high-strength steel strands or high-strength steel members.
如附图11所示，本发明所述的震后自复位可装配多段梁预应力偏心支撑钢框架中，采用预制混凝土-压型钢板组合楼板，混凝土板可在工厂浇筑，压型钢板作为底模浇筑为整体，也可在施工现场现浇；As shown in Figure 11, in the prestressed eccentrically supported steel frame of prestressed eccentrically supported multi-segment beams that can be assembled after an earthquake, the prefabricated concrete-profiled steel plate composite floor slab is used, and the concrete slab can be poured in the factory, and the profiled steel plate is used as the bottom. Formwork pouring as a whole, can also be cast in-situ at the construction site;
如附图12所示，本发明所述的震后自复位可装配多段梁预应力偏心支撑钢框架中，按照上述安装步骤逐步安装后组成偏心支撑框架结构体系，楼板使用预制混凝土-压型钢板组合楼板。As shown in Figure 12, in the post-earthquake self-resetting multi-segment beam prestressed eccentrically supported steel frame that can be assembled according to the present invention, the eccentrically supported frame structure system is formed after step by step installation according to the above installation steps, and the floor is made of prefabricated concrete-profiled steel plate Composite floors.
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| CN110820930A (en) * | 2019-10-18 | 2020-02-21 | 北京市第三建筑工程有限公司 | Fully-assembled prestressed concrete frame and construction method |
| CN110820930B (en) * | 2019-10-18 | 2021-06-01 | 北京市第三建筑工程有限公司 | Fully-assembled prestressed concrete frame and construction method |
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| CN112854449A (en) * | 2021-01-08 | 2021-05-28 | 盛尔建设集团有限公司 | Steel construction assembled building component |
| CN113202187A (en) * | 2021-05-06 | 2021-08-03 | 安徽省宝路钢结构有限公司 | Steel structure high-strength connecting piece and assembling process thereof |
| CN114150912A (en) * | 2021-12-06 | 2022-03-08 | 北京建筑大学 | A support plate type integral connection node suitable for steel frame support system |
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