CN209585270U - Rectangle steel tubing string-H girder steel is bolted structures with semi-rigid joints entirely - Google Patents
Rectangle steel tubing string-H girder steel is bolted structures with semi-rigid joints entirely Download PDFInfo
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Abstract
本实用新型公开了一种矩形钢管柱‑H钢梁全螺栓连接半刚性节点，包括矩形钢管柱、H型钢梁、连接传力部件；所述连接传力部件包括上矩形套箍、下矩形套箍、上不等肢角钢、下不等肢角钢和竖向腹板连接板；所述上、下不等肢角钢包括连接矩形钢管柱的不等肢角钢短肢和连接H型钢梁翼缘的不等肢角钢长肢；所述上、下矩形套箍套设在不等肢角钢短肢的外侧，并通过单向锁紧高强螺栓与矩形钢管柱连接；所述竖向腹板连接板位于H型钢梁腹板处，与矩形钢管柱固定并与H型钢梁腹板连接。本实用新型节点传力合理可靠，设计标准化，制造标准化，安装准确便捷，适用于方钢管柱和H型钢梁结构的装配式连接，同时本节点为半刚性节点、延性好、抗震耗能能力强。
The utility model discloses a semi-rigid node connected by rectangular steel pipe columns-H steel beams with full bolts, comprising rectangular steel pipe columns, H-shaped steel beams, and connecting force transmission parts; the connection force transmission parts include an upper rectangular ferrule, a lower rectangular Hoop, upper unequal leg angle steel, lower unequal leg angle steel and vertical web connecting plate; said upper and lower unequal leg angle steel includes unequal leg angle steel short leg connecting rectangular steel pipe column and connecting H-shaped steel beam flange The long legs of the unequal leg angle steel; the upper and lower rectangular hoops are set on the outside of the short leg of the unequal leg angle steel, and are connected to the rectangular steel pipe column through one-way locking high-strength bolts; the vertical web connecting plate is located at At the web of the H-shaped steel beam, it is fixed with the rectangular steel pipe column and connected with the web of the H-shaped steel beam. The utility model node force transmission is reasonable and reliable, the design is standardized, the manufacture is standardized, the installation is accurate and convenient, and it is suitable for the assembled connection of the square steel pipe column and the H-shaped steel beam structure. At the same time, the node is a semi-rigid node with good ductility and seismic energy consumption powerful.
Description
技术领域technical field
本实用新型涉及建筑工程，特别涉及一种矩形钢管柱-H型钢梁全螺栓连接半刚性节点。The utility model relates to construction engineering, in particular to a rectangular steel pipe column-H-shaped steel beam full-bolt connection semi-rigid node.
背景技术Background technique
自2016年以来，关于钢结构建筑产业化及装配式建筑政策密集型出台，提出积极推广绿色建筑和建材，大力发展钢结构和装配式建筑。装配式钢结构体系是指按照统一、标准的建筑部品规格制作房屋单元或构件，然后运至施工现场装配就位而产生的建筑。其特点是建筑质量轻、节能环保、施工速度快、工业化程度高等，能解决我国建筑工业化水平低、房屋建造劳动生产率低以及传统房屋产品质量低等诸多问题，适应我国建筑行业的发展。在目前装配式钢框架中矩形钢管柱的应用逐渐增多，相比热轧H型钢，矩形钢管柱没有明显的弱轴且具有较大的抗扭刚度，在框架体系中可充分发挥其承载能力，是多层钢框架设计中重要的柱截面形式。但由于矩形钢管柱自身是闭口截面，无法为高强螺栓连接的施工提供空间，很难像H型钢柱一样用常规高强螺栓进行装配式连接。梁柱的连接技术是装配式钢框架结构体系中最核心的技术，其连接构造及节点性能对整个体系的性能起到十分重要的控制作用。国内外学者对钢管混凝土柱与工形梁之间的螺栓端板连接进行了研究，但由于混凝土对钢管壁的变形有明显的限制作用，所以相关的研究结论难以推广到箱形柱与工形梁的连接节点中。Since 2016, policies on the industrialization of steel structure buildings and prefabricated buildings have been intensively introduced, and it is proposed to actively promote green buildings and building materials, and vigorously develop steel structures and prefabricated buildings. The prefabricated steel structure system refers to the building produced by manufacturing housing units or components according to uniform and standard building part specifications, and then transporting them to the construction site for assembly in place. It is characterized by light building weight, energy saving and environmental protection, fast construction speed, and high degree of industrialization. It can solve many problems such as the low level of construction industrialization in my country, low labor productivity in house construction, and low quality of traditional house products, and adapt to the development of my country's construction industry. In the current prefabricated steel frame, the application of rectangular steel pipe columns is gradually increasing. Compared with hot-rolled H-shaped steel, rectangular steel pipe columns have no obvious weak axis and have greater torsional rigidity. It can fully exert its bearing capacity in the frame system. It is an important column section form in the design of multi-storey steel frame. However, since the rectangular steel pipe column itself is a closed section, it cannot provide space for the construction of high-strength bolt connection, and it is difficult to use conventional high-strength bolts for prefabricated connection like H-shaped steel columns. Beam-column connection technology is the core technology in the fabricated steel frame structure system, and its connection structure and joint performance play a very important role in controlling the performance of the entire system. Scholars at home and abroad have conducted research on the bolted end-plate connection between concrete filled steel tube columns and I-shaped beams. However, due to the obvious restriction of concrete on the deformation of steel tube walls, it is difficult to extend the relevant research conclusions to box-shaped columns and I-shaped beams. In the connection node of the beam.
节点根据刚度性能的不同，分为刚接、铰接和半刚性连接，半刚性连接钢框架因节点具有较强的变形能力和耗能能力，能够延长结构的自振周期，通过控制梁端塑性铰可耗散地震能量，防止因连接节点破坏而引起结构的倒塌，从而大大降低震害，有利于抗震。目前已有的钢结构矩形钢管柱-H型钢梁半刚性节点的主要类型为：穿芯螺栓端板连接、梁翼缘通过连接件与柱壁连接以及柱壁开孔补焊连接形式，虽然半刚性连接形式多样但却都存在着一定程度的缺陷：穿芯螺栓端板连接需要特制的贯通柱截面的长对拉高强螺栓，加工及施工精度要求非常高，施工效率降低，当采用不等高异形节点时，螺栓贯通式端板连接不再适用；连接件式节点的梁翼缘采用高强螺栓，虽然提高了节点的延性和抗震性能，减少了现场焊接量有利于现场安装施工，但是由于钢管内没有内隔板传力，钢管柱很容易出现柱壁局部屈曲。柱壁开孔补焊连接通常需在钢管壁上开设临时施工洞或者截断，通过该施工洞在钢管内侧安装螺母，再将临时施工洞现场补焊，这种方法不仅施工效率低，而且临时施工洞破坏了原钢管的整体性，现场补焊引入了焊接残余应力，降低其承载力。The joints are divided into rigid joints, hinged joints and semi-rigid joints according to different stiffness properties. The steel frames with semi-rigid joints have strong deformation capacity and energy dissipation capacity, which can prolong the natural vibration period of the structure. By controlling the plastic hinge at the end of the beam It can dissipate earthquake energy and prevent the structure from collapsing due to the damage of connecting nodes, thereby greatly reducing earthquake damage and is conducive to earthquake resistance. At present, the main types of semi-rigid joints of rectangular steel pipe column and H-shaped steel beam in steel structure are: the end-plate connection of core-piercing bolts, the connection of the beam flange with the column wall through connectors, and the repair welding connection of the column wall. Although semi-rigid There are various connection forms but there are certain defects: the connection of the core-through bolt end plate requires special long-to-tension high-strength bolts with a through-column section, which requires very high processing and construction accuracy and reduces construction efficiency. When connecting joints, bolt-through end-plate connections are no longer applicable; high-strength bolts are used for the beam flanges of connector-type joints. Due to the force transmission of the diaphragm, the steel pipe column is prone to local buckling of the column wall. The repair welding connection of the opening of the column wall usually needs to open a temporary construction hole or cut off the steel pipe wall, install nuts on the inner side of the steel pipe through the construction hole, and then repair the temporary construction hole on site. This method is not only low in construction efficiency, but also temporary. The hole destroyed the integrity of the original steel pipe, and the on-site repair welding introduced welding residual stress and reduced its bearing capacity.
梁柱节点是框架结构的一个基本组成部分，对于整个结构的受力和安全有重大影响。一旦连接发生破坏，结构构件就无法发挥作用，其构造合理与否直接关系到结构的安全可靠性。梁柱节点的施工方法直接影响着工程的施工速度以及结构的装配化程度，因此梁柱节点应尽量多采用便于操作的螺栓连接，并且螺栓的布置应可能地易于工人现场紧固。The beam-column joint is a basic part of the frame structure, which has a great influence on the force and safety of the whole structure. Once the connection is damaged, the structural member will not be able to play its role, and whether its structure is reasonable or not is directly related to the safety and reliability of the structure. The construction method of the beam-column joint directly affects the construction speed of the project and the degree of assembly of the structure. Therefore, the beam-column joint should be connected with bolts that are easy to operate as much as possible, and the bolt arrangement should be as easy as possible for workers to fasten on site.
因此，工程中需要提供一种施工便捷、能有效提高矩形钢管柱-H型钢承载力且综合成本低的全螺栓装配式连接节点，能大大提高H型钢梁与矩形钢管柱组成的框架结构的受力性能和整体性。Therefore, it is necessary to provide a full-bolt assembly connection node that is convenient in construction, can effectively improve the bearing capacity of rectangular steel pipe columns-H-shaped steel columns, and has low overall cost, which can greatly improve the strength of the frame structure composed of H-shaped steel beams and rectangular steel pipe columns Stress performance and integrity.
实用新型内容Utility model content
本实用新型的目的是克服现有H型钢梁与矩形钢管柱节点技术的不足，提供一种施工方便、承载性能高的全螺栓装配式半刚性连接节点，实现结构的完全装配化，提高构件的拼装速度，充分适应多高层装配式钢结构体系的要求与特点。The purpose of this utility model is to overcome the deficiencies in the existing joint technology of H-shaped steel beams and rectangular steel pipe columns, provide a fully bolt-assembled semi-rigid joint joint with convenient construction and high load-bearing performance, realize the complete assembly of the structure, and improve the The assembly speed fully adapts to the requirements and characteristics of the multi-high-rise fabricated steel structure system.
本实用新型所采用的技术方案是：一种矩形钢管柱-H钢梁全螺栓连接半刚性节点，包括矩形钢管柱、H型钢梁、连接传力部件；所述连接传力部件包括上矩形套箍、下矩形套箍、上不等肢角钢、下不等肢角钢和竖向腹板连接板；The technical scheme adopted by the utility model is: a semi-rigid node connected by rectangular steel pipe columns-H steel beams with full bolts, including rectangular steel pipe columns, H-shaped steel beams, and connecting force transmission components; the connection force transmission components include upper rectangular Ferrules, lower rectangular ferrules, upper unequal leg angles, lower unequal leg angles and vertical web connection plates;
所述上不等肢角钢包括上不等肢角钢短肢和上不等肢角钢长肢，所述上不等肢角钢短肢的内壁与所述矩形钢管柱的外壁相贴合，所述上不等肢角钢长肢的下表面与所述H型钢梁的上翼缘相贴合并与所述H型钢梁的上翼缘固定连接；The upper unequal leg angle steel includes the upper unequal leg angle steel short leg and the upper unequal leg angle steel long leg, the inner wall of the upper unequal leg angle steel short leg fits the outer wall of the rectangular steel pipe column, and the upper The lower surface of the long limb of the unequal limb angle is attached to the upper flange of the H-shaped steel beam and fixedly connected with the upper flange of the H-shaped steel beam;
所述下不等肢角钢包括下不等肢角钢短肢和下不等肢角钢长肢，所述下不等肢角钢短肢的内壁与所述矩形钢管柱的外壁相贴合，所述下不等肢角钢长肢的下表面与所述H型钢梁的下翼缘相贴合并与所述H型钢梁的下翼缘固定连接；The lower unequal leg angle steel includes a lower unequal leg angle steel short leg and a lower unequal leg angle steel long leg, the inner wall of the lower unequal leg angle steel short leg fits the outer wall of the rectangular steel pipe column, and the lower The lower surface of the long leg of the unequal leg angle is attached to the lower flange of the H-shaped steel beam and fixedly connected with the lower flange of the H-shaped steel beam;
所述上矩形套箍套设在所述上不等肢角钢短肢的外侧，并将所述上不等肢角钢短肢压紧在所述矩形钢管柱上；所述上矩形套箍套通过单向锁紧高强螺栓与所述矩形钢管柱固定连接并将所述上不等肢角钢短肢固连接在所述矩形钢管柱上；The upper rectangular hoop is set on the outside of the short leg of the upper unequal angle steel, and the short leg of the upper unequal angle steel is pressed against the rectangular steel pipe column; the upper rectangular hoop is passed through One-way locking high-strength bolts are fixedly connected to the rectangular steel pipe column and the short legs of the upper unequal angle steel are firmly connected to the rectangular steel pipe column;
所述下矩形套箍套设在所述下不等肢角钢短肢的外侧，并将所述下不等肢角钢短肢压紧在所述矩形钢管柱上；所述下矩形套箍套通过单向锁紧高强螺栓与所述矩形钢管柱固定连接并将所述下不等肢角钢短肢固连接在所述矩形钢管柱上；The lower rectangular hoop is set on the outside of the short leg of the lower unequal angle steel, and the short leg of the lower unequal angle steel is pressed against the rectangular steel pipe column; the lower rectangular hoop is passed through One-way locking high-strength bolts are fixedly connected to the rectangular steel pipe column and the lower unequal leg angle steel short legs are firmly connected to the rectangular steel pipe column;
所述竖向腹板连接板与所述H型钢梁的腹板相贴合并与所述H型钢梁的腹板固定连接，所述竖向腹板连接板的内端部与所述矩形钢管柱的壁板固定连接。The vertical web connecting plate fits and is fixedly connected to the web of the H-shaped steel beam, and the inner end of the vertical web connecting plate is connected to the rectangular Wall plate fixed connection of steel pipe column.
进一步的，所述上不等肢角钢长肢在上不等肢角钢长肢肢背位置通过圆弧倒角使所述上不等肢角钢长肢长度由与所述上不等肢角钢短肢长度相等变化至与所述H型钢梁的上翼缘宽度相等；所述上不等肢角钢短肢长度与所述矩形钢管柱宽度相等；所述下不等肢角钢长肢在下不等肢角钢长肢肢背位置通过圆弧倒角使所述下不等肢角钢长肢长度由与所述下不等肢角钢短肢长度相等变化至与所述H型钢梁的下翼缘宽度相等；所述下不等肢角钢短肢长度与所述矩形钢管柱宽度相等。Further, the long limbs of the upper unequal leg angles are chamfered at the back position of the long limbs of the upper unequal leg angles so that the length of the long legs of the upper unequal leg angles is equal to that of the short limbs of the upper unequal leg angles. The length is equal to the width of the upper flange of the H-shaped steel beam; the length of the short leg of the upper unequal leg angle is equal to the width of the rectangular steel pipe column; the long leg of the lower unequal leg angle is at the lower unequal leg The back position of the long leg of the angle steel is changed by arc chamfering so that the length of the long leg of the lower unequal leg angle steel changes from being equal to the length of the short leg of the lower unequal leg angle steel to being equal to the width of the lower flange of the H-shaped steel beam ; The length of the short leg of the lower unequal leg angle steel is equal to the width of the rectangular steel pipe column.
进一步的，所述上矩形套箍和所述下矩形套箍的尺寸根据所述矩形钢管柱的截面大小确定。Further, the size of the upper rectangular ferrule and the lower rectangular ferrule is determined according to the section size of the rectangular steel pipe column.
进一步的，所述上矩形套箍的厚度大于或等于所述矩形钢管柱的壁厚，所述上矩形套箍与所述矩形钢管柱之间的距离等于所述上不等肢角钢的厚度；所述下矩形套箍的厚度大于或等于所述矩形钢管柱的壁厚，所述下矩形套箍与所述矩形钢管柱之间的距离等于所述下不等肢角钢的厚度。Further, the thickness of the upper rectangular hoop is greater than or equal to the wall thickness of the rectangular steel pipe column, and the distance between the upper rectangular hoop and the rectangular steel pipe column is equal to the thickness of the upper unequal leg angle steel; The thickness of the lower rectangular hoop is greater than or equal to the wall thickness of the rectangular steel pipe column, and the distance between the lower rectangular hoop and the rectangular steel pipe column is equal to the thickness of the lower unequal leg angle steel.
进一步的，所述H型钢梁的上翼缘、下翼缘分别通过第一高强螺栓与所述上不等肢角钢长肢、下不等肢角钢长肢固定连接。Further, the upper flange and the lower flange of the H-shaped steel beam are fixedly connected to the upper unequal leg angle steel long leg and the lower unequal leg angle steel long leg respectively by first high-strength bolts.
进一步的，所述竖向腹板连接板通过第一高强螺栓与所述H型钢梁的腹板固定连接；所述竖向腹板连接板的内端部通过焊接形式与所述矩形钢管柱的壁板固定连接。Further, the vertical web connecting plate is fixedly connected to the web of the H-shaped steel beam through first high-strength bolts; the inner end of the vertical web connecting plate is welded to the rectangular steel pipe column The wall panel is fixedly connected.
本实用新型的有益效果是：The beneficial effects of the utility model are:
1.上、下矩形套箍和上、下不等肢角钢的设计并不拘泥于一种形式，可以根据矩形钢管柱及H型钢梁的截面大小以及框架节点的传力情况进行设计，形式多样；上、下矩形套箍和上、下不等肢角钢的加工制作，均可由工厂批量生产，生产效率高、质量可靠；1. The design of the upper and lower rectangular ferrules and the upper and lower unequal leg angle steels is not limited to one form. It can be designed according to the section size of the rectangular steel pipe column and H-shaped steel beam and the force transmission of the frame joints. The form Various; the processing and manufacture of upper and lower rectangular hoops and upper and lower unequal limb angle steels can be mass-produced by the factory, with high production efficiency and reliable quality;
2.上、下矩形套箍分别套在上、下不等肢角钢短肢处，通过单向锁紧高强螺栓与矩形钢管柱连接，矩形套箍的存在提高了矩形钢管柱对单向锁紧高强螺栓的锚固作用，有效防止矩形钢管柱因柱壁太薄造成局部屈曲及单向锁紧高强螺栓锚固不足，与不等肢角钢共同工作，可以增强矩形钢管柱和节点的整体受力性能；2. The upper and lower rectangular ferrules are respectively set on the short legs of the upper and lower unequal limb angle steel, and are connected to the rectangular steel pipe column through one-way locking high-strength bolts. The existence of the rectangular ferrule improves the one-way locking of the rectangular steel pipe column. The anchoring effect of high-strength bolts can effectively prevent local buckling of rectangular steel pipe columns due to too thin column walls and insufficient anchorage of high-strength bolts for one-way locking. Working together with unequal limb angle steel can enhance the overall mechanical performance of rectangular steel pipe columns and joints;
3.本实用新型适应装配式钢结构的发展，竖向腹板连接板焊接部分在工厂内完成，矩形钢管柱与上、下矩形套箍及上、下不等肢角钢的连接，采用合理的施工顺序，均可以在施工现场采用螺栓进行装配完成，实现现场施工无焊接，提高了施工效率；3. This utility model adapts to the development of assembled steel structures. The welding part of the vertical web connecting plate is completed in the factory. The construction sequence can be assembled with bolts at the construction site, realizing no welding in site construction and improving construction efficiency;
4.本实用新型的连接节点，节点位置的上、下矩形套箍及上、下不等肢角钢相互约束共同工作：H型钢梁翼缘传来的拉、压力作用主要通过不等肢角钢长肢传递给矩形钢管柱和矩形套箍；H型钢梁传来的剪力主要由竖向腹板连接板传递到矩形钢管柱，既提高了矩形钢管柱对单向锁紧高强螺栓的锚固作用，也给不等肢角钢连接提供了一定的刚度，同时也保证了节点区域矩形钢管柱壁板的局部稳定性，各受力组件相互补充、充分发挥，整个连接节点传力明确、连接可靠、整体性能良好；4. In the connection node of the present invention, the upper and lower rectangular hoops at the node position and the upper and lower unequal limb angle steels are mutually restrained and work together: the tension and pressure from the flange of the H-shaped steel beam mainly pass through the long limbs of the unequal limb angle steel The shear force from the H-shaped steel beam is mainly transmitted to the rectangular steel pipe column by the vertical web connecting plate, which not only improves the anchoring effect of the rectangular steel pipe column on the one-way locking high-strength bolts, but also gives The unequal leg angle steel connection provides a certain degree of rigidity, and at the same time ensures the local stability of the rectangular steel pipe column wall plate in the node area, and the stress-bearing components complement each other and give full play to each other. The entire connection node has clear force transmission, reliable connection, and good overall performance ;
5.本实用新型的连接节点，通过矩形套箍、不等肢角钢、竖向腹板连接板以及单向锁紧高强螺栓和高强螺栓连接H型钢梁和矩形钢管柱，利用半刚性节点良好的变形能力和耗能能力等抗震性能，可实现“强柱弱梁”、“强节点、弱杆件”的抗震设计原则，避免因节点脆性破坏而导致结构整体破坏，从而提高结构的抗震性能，降低经济损失、减少人员伤亡。5. The connection node of the utility model connects H-shaped steel beams and rectangular steel pipe columns through rectangular hoops, unequal limb angle steels, vertical web connection plates, and one-way locking high-strength bolts and high-strength bolts. The use of semi-rigid joints is good The anti-seismic performance such as deformation capacity and energy dissipation capacity can realize the anti-seismic design principles of "strong column and weak beam", "strong node and weak member", avoiding the overall damage of the structure due to brittle failure of joints, thereby improving the anti-seismic performance of the structure , Reduce economic losses and reduce casualties.
附图说明Description of drawings
图1：本实用新型矩形钢管柱-H钢梁全螺栓连接半刚性节点三维空间示意图；Figure 1: The three-dimensional schematic diagram of the utility model rectangular steel pipe column-H steel beam full-bolt connection semi-rigid joint;
图2：本实用新型矩形钢管柱-H钢梁全螺栓连接半刚性节点平面示意图；Figure 2: Plane diagram of semi-rigid joints connected by rectangular steel pipe column-H steel beam of the utility model with full bolts;
图3：本实用新型矩形钢管柱-H钢梁全螺栓连接半刚性节点正立面示意图；Figure 3: Schematic diagram of the facade of the rectangular steel pipe column-H steel beam full-bolt connection semi-rigid joint of the utility model;
图4：本实用新型的矩形钢管柱立体示意图；Fig. 4: a three-dimensional schematic diagram of a rectangular steel pipe column of the present invention;
图5：本实用新型的H型钢梁立体示意图；Fig. 5: The three-dimensional schematic diagram of the H-shaped steel beam of the present invention;
图6：本实用新型的上矩形套箍立体示意图；Fig. 6: a three-dimensional schematic diagram of the upper rectangular ferrule of the utility model;
图7：本实用新型的下矩形套箍立体示意图；Fig. 7: a three-dimensional schematic diagram of the lower rectangular ferrule of the utility model;
图8：本实用新型的上不等肢角钢立体示意图；Fig. 8: a three-dimensional schematic diagram of the upper unequal limb angle steel of the utility model;
图9：本实用新型的下不等肢角钢立体示意图；Fig. 9: a three-dimensional schematic diagram of the lower unequal limb angle steel of the utility model;
附图标注：1-矩形钢管柱，1a、1b、1c、1d-钢壁板，2-H型钢梁，3-上矩形套箍，4-下矩形套箍，5-上不等肢角钢，6-下不等肢角钢，7-竖向腹板连接板，8-第一高强螺栓，9-第二高强螺栓，10-单向锁紧高强螺栓，11-全熔透坡口对接焊缝，12-螺栓孔，13-全熔透坡口对接焊缝，21-上翼缘，22-下翼缘，23-腹板，24-H型钢梁翼缘螺栓孔，25-H型钢梁腹板螺栓孔，31-上矩形套箍螺栓孔，41-下矩形套箍螺栓孔，51-上不等肢角钢短肢，52-上不等肢角钢长肢，53-上不等肢角钢螺栓孔，61-下不等肢角钢短肢，62-下不等肢角钢长肢，63-下不等肢角钢螺栓孔，71-螺栓孔。Drawings: 1-rectangular steel pipe column, 1a, 1b, 1c, 1d-steel wall plate, 2-H-shaped steel beam, 3-upper rectangular hoop, 4-lower rectangular hoop, 5-upper unequal limb angle steel , 6-lower unequal leg angle steel, 7-vertical web connecting plate, 8-first high-strength bolt, 9-second high-strength bolt, 10-one-way locking high-strength bolt, 11-full penetration groove butt welding seam, 12-bolt hole, 13-full penetration groove butt weld, 21-upper flange, 22-lower flange, 23-web, 24-bolt hole in H-shaped steel beam flange, 25-H-shaped steel beam Web bolt hole, 31-bolt hole of upper rectangular ferrule, 41-bolt hole of lower rectangular ferrule, 51-short leg of upper unequal leg angle steel, 52-long leg of upper unequal leg angle steel, 53-upper unequal leg angle steel Bolt hole, 61-lower unequal limb angle steel short limb, 62-lower unequal limb angle steel long limb, 63-lower unequal limb angle steel bolt hole, 71-bolt hole.
具体实施方式Detailed ways
为能进一步了解本实用新型的实用新型内容、特点及功效，兹例举以下实施例，并配合附图详细说明如下：In order to further understand the utility model content, characteristics and effects of the present utility model, the following examples are given hereby, and detailed descriptions are as follows in conjunction with the accompanying drawings:
如图1至图9所示，一种矩形钢管柱-H钢梁全螺栓连接半刚性节点，包括矩形钢管柱1、H型钢梁2和连接传力部件。As shown in Figures 1 to 9, a rectangular steel pipe column-H steel beam fully bolted semi-rigid joint, including a rectangular steel pipe column 1, an H-shaped steel beam 2 and connecting force transmission components.
所述矩形钢管柱1选用焊接箱型组合截面柱，其中矩形钢管柱1由钢壁板1a、钢壁板1b、钢壁板1c及钢壁板1d按一定焊接顺序连接而成。The rectangular steel pipe column 1 is a welded box-shaped composite section column, wherein the rectangular steel pipe column 1 is formed by connecting steel wall panels 1a, steel wall panels 1b, steel wall panels 1c and steel wall panels 1d in a certain welding sequence.
所述连接传力部件包括上矩形套箍3、下矩形套箍4、上不等肢角钢5、下不等肢角钢6、竖向腹板连接板7、第一高强螺栓8、第二高强螺栓9及单向锁紧高强螺栓10。The connecting force transmission parts include upper rectangular hoop 3, lower rectangular hoop 4, upper unequal limb angle steel 5, lower unequal limb angle steel 6, vertical web connecting plate 7, first high-strength bolt 8, second high-strength Bolt 9 and one-way locking high-strength bolt 10.
所述上不等肢角钢5包括上不等肢角钢短肢51和上不等肢角钢长肢52，所述上不等肢角钢短肢51的内壁与所述矩形钢管柱1的外壁相贴合，所述上不等肢角钢长肢52的下表面与所述H型钢梁2的上翼缘21相贴合并通过所述第一高强螺栓8与所述H型钢梁2的上翼缘21固定连接。其中，所述上不等肢角钢长肢52在其肢背位置通过圆弧倒角使其长度由与所述上不等肢角钢短肢51长度相等变化至与所述H型钢梁2的上翼缘21宽度相等；所述上不等肢角钢短肢51长度与所述矩形钢管柱1宽度相等。The upper unequal limb angle steel 5 includes upper unequal limb angle steel short limb 51 and upper unequal limb angle steel long limb 52, and the inner wall of the upper unequal limb angle steel short limb 51 is attached to the outer wall of the rectangular steel pipe column 1 Together, the lower surface of the upper unequal limb angle steel long limb 52 fits the upper flange 21 of the H-shaped steel beam 2 and passes through the first high-strength bolt 8 and the upper wing of the H-shaped steel beam 2 Edge 21 is fixedly connected. Wherein, the long limb 52 of the upper unequal limb angle steel changes its length from being equal to the length of the short limb 51 of the upper unequal limb angle steel to the length equal to that of the H-shaped steel beam 2 at the position of the back of the limb by circular chamfering. The width of the upper flange 21 is equal; the length of the short limb 51 of the upper unequal limb angle steel is equal to the width of the rectangular steel pipe column 1 .
所述下不等肢角钢6包括下不等肢角钢短肢61和下不等肢角钢长肢62，所述下不等肢角钢短肢61的内壁与所述矩形钢管柱1的外壁相贴合，所述下不等肢角钢长肢62的下表面与所述H型钢梁2的下翼缘22相贴合并通过所述第一高强螺栓8与所述H型钢梁2的下翼缘22固定连接。其中，所述下不等肢角钢长肢62在其肢背位置通过圆弧倒角使其长度由与所述下不等肢角钢短肢61长度相等变化至与所述H型钢梁2的下翼缘22宽度相等；所述下不等肢角钢短肢61长度与所述矩形钢管柱1宽度相等。The lower unequal limb angle steel 6 includes a lower unequal limb angle steel short limb 61 and a lower unequal limb angle steel long limb 62, and the inner wall of the lower unequal limb angle steel short limb 61 is attached to the outer wall of the rectangular steel pipe column 1 Together, the lower surface of the lower unequal limb angle steel long limb 62 fits the lower flange 22 of the H-shaped steel beam 2 and passes through the first high-strength bolt 8 and the lower wing of the H-shaped steel beam 2 Edge 22 is fixedly connected. Wherein, the long limb 62 of the lower unequal limb angle steel changes its length from being equal to the length of the short limb 61 of the lower unequal limb angle steel beam to being equal to the length of the H-shaped steel beam 2 through arc chamfering at its limb back position. The width of the lower flange 22 is equal; the length of the short limb 61 of the lower unequal limb angle steel is equal to the width of the rectangular steel pipe column 1 .
所述上矩形套箍3套设在所述上不等肢角钢短肢51的外侧，并将所述上不等肢角钢短肢51压紧在所述矩形钢管柱1上，所述上矩形套箍3套通过单向锁紧高强螺栓10与所述矩形钢管柱1固定连接并将所述上不等肢角钢短肢51固连接在所述矩形钢管柱1上；所述下矩形套箍4套设在所述下不等肢角钢短肢61的外侧，并将所述下不等肢角钢短肢61压紧在所述矩形钢管柱1上，所述下矩形套箍4套通过单向锁紧高强螺栓10与所述矩形钢管柱1固定连接并将所述下不等肢角钢短肢61固连接在所述矩形钢管柱1上。所述上矩形套箍3套和下矩形套箍4套的设置，有效防止矩形钢管柱1因柱壁太薄造成局部屈曲及单向锁紧高强螺栓10锚固不足，提高了矩形钢管柱1与H型钢梁2单向锁紧高强螺栓10连接处的承载力，可以增强矩形钢管柱1和节点的整体受力性能。The upper rectangular hoop 3 is sleeved on the outside of the upper unequal limb angle steel short limb 51, and the upper unequal limb angle steel short limb 51 is pressed against the rectangular steel pipe column 1, and the upper rectangular 3 sets of ferrules are fixedly connected to the rectangular steel pipe column 1 through one-way locking high-strength bolts 10, and the upper unequal limb angle steel short limb 51 is fixedly connected to the rectangular steel pipe column 1; the lower rectangular ferrule 4 sets are set on the outer side of the lower unequal limb angle steel short limb 61, and the lower unequal limb angle steel short limb 61 is pressed on the rectangular steel pipe column 1, and the 4 lower rectangular hoops are passed through a single The high-strength bolts 10 for direction locking are fixedly connected with the rectangular steel pipe column 1 and the lower unequal limb angle steel short legs 61 are fixedly connected with the rectangular steel pipe column 1 . The setting of 3 sets of upper rectangular ferrules and 4 sets of lower rectangular ferrules can effectively prevent local buckling of rectangular steel pipe column 1 due to too thin column wall and insufficient anchoring of high-strength bolts 10 for one-way locking, and improve the connection between rectangular steel pipe column 1 and The H-shaped steel beam 2 unidirectionally locks the bearing capacity of the joint of the high-strength bolt 10, which can enhance the overall mechanical performance of the rectangular steel pipe column 1 and the node.
其中，所述上矩形套箍3的厚度大于或等于所述矩形钢管柱1的柱壁截面的厚度，所述上矩形套箍3与所述矩形钢管柱1之间的距离等于所述上不等肢角钢5的厚度；所述下矩形套箍4的厚度大于或等于所述矩形钢管柱1的柱壁截面的厚度，所述下矩形套箍4与所述矩形钢管柱1之间的距离等于所述下不等肢角钢6的厚度。Wherein, the thickness of the upper rectangular ferrule 3 is greater than or equal to the thickness of the column wall section of the rectangular steel pipe column 1, and the distance between the upper rectangular ferrule 3 and the rectangular steel pipe column 1 is equal to that of the upper rectangular steel pipe column 1. The thickness of the equal limb angle steel 5; the thickness of the lower rectangular ferrule 4 is greater than or equal to the thickness of the column wall section of the rectangular steel pipe column 1, and the distance between the lower rectangular ferrule 4 and the rectangular steel pipe column 1 It is equal to the thickness of the lower unequal limb angle steel 6.
所述上矩形套箍3、下矩形套箍4、上不等肢角钢5、下不等肢角钢6的尺寸根据矩形钢管柱1、H型钢梁2的截面大小及框架节点传力情况确定，矩形套箍和不等肢角钢的加工制作，均可由工厂批量生产。The size of the upper rectangular ferrule 3, the lower rectangular ferrule 4, the upper unequal limb angle steel 5, and the lower unequal limb angle steel 6 is determined according to the cross-sectional size of the rectangular steel pipe column 1, the H-shaped steel beam 2 and the force transmission conditions of the frame nodes , Rectangular hoops and unequal leg angle steel processing can be mass-produced by the factory.
所述竖向腹板连接板7与所述H型钢梁2的腹板23相贴合并通过第二高强螺栓9与所述H型钢梁2的腹板23固定连接，所述竖向腹板连接板7的内端部通过焊接形式与所述矩形钢管柱1的壁板固定连接。所述矩形钢管柱1与所述竖向腹板连接板7通过全熔透坡口对接焊缝11焊接部分在工厂内完成，在施工现场采用第二高强螺栓9与H型钢梁2的腹板23装配连接。The vertical web connecting plate 7 is attached to the web 23 of the H-shaped steel beam 2 and is fixedly connected with the web 23 of the H-shaped steel beam 2 by the second high-strength bolt 9. The inner end of the plate connection plate 7 is fixedly connected with the wall plate of the rectangular steel pipe column 1 by welding. The welding part of the rectangular steel pipe column 1 and the vertical web connecting plate 7 is completed in the factory through the full penetration groove butt weld 11, and the second high-strength bolt 9 and the web of the H-shaped steel beam 2 are used at the construction site. The board 23 is assembled and connected.
如图3示，所述竖向腹板连接板7位于所述H型钢梁2的腹板23位置上，与矩形钢管柱1外壁通过全熔透坡口对接焊缝11工厂焊接，现场通过第二高强螺栓9与所述H型钢梁2的腹板23连接；所述H型钢梁2的上翼缘21、下翼缘22分别与所述上不等肢角钢长肢52、下不等肢角钢长肢62通过第一高强螺栓8连接。As shown in Figure 3, the vertical web connecting plate 7 is located at the web 23 of the H-shaped steel beam 2, and is welded with the outer wall of the rectangular steel pipe column 1 through a full penetration groove butt weld 11 at the factory. The second high-strength bolt 9 is connected with the web 23 of the H-shaped steel beam 2; The long legs 62 of unequal leg angle steel are connected by the first high-strength bolts 8 .
如图4和图5所示，所述矩形钢管柱1选用焊接箱型组合截面，组成所述矩形钢管柱1的钢壁板1a、钢壁板1b、钢壁板1c及钢壁板1d，与所述竖向腹板连接板7合理焊接顺序为：As shown in Figures 4 and 5, the rectangular steel pipe column 1 is made of a welded box-shaped combined section, and the steel wall panels 1a, 1b, 1c, and 1d of the rectangular steel pipe column 1 are formed. The reasonable welding sequence with the vertical web connecting plate 7 is:
(1)所述矩形钢管柱1的钢壁板1a与钢壁板1b，及钢壁板1b与钢壁板1c，分别采用全熔透坡口对接焊缝11焊接，并根据节点设计及框架节点传力情况确定单向锁紧高强螺栓10规格和位置，在矩形钢管柱1的壁板上预先开设的螺栓孔12；(1) The steel wall plate 1a and the steel wall plate 1b, and the steel wall plate 1b and the steel wall plate 1c of the rectangular steel pipe column 1 are welded by full penetration groove butt welds 11 respectively, and according to the joint design and frame The specification and position of the one-way locking high-strength bolt 10 are determined by the force transmission of the nodes, and the bolt hole 12 pre-opened on the wall plate of the rectangular steel pipe column 1;
(2)在所述H型钢梁2的腹板23位置处，采用全熔透坡口对接焊缝13将所述竖向腹板连接板7与所述矩形钢管柱1的钢壁板1a、钢壁板1b、钢壁板1c、钢壁板1d焊接，并根据节点设计及框架节点传力情况确定竖向腹板连接板7上预先开设的螺栓孔71。(2) At the position of the web 23 of the H-shaped steel beam 2, the vertical web connecting plate 7 and the steel wall plate 1a of the rectangular steel pipe column 1 are connected by a full penetration groove butt weld 13 , steel wall plate 1b, steel wall plate 1c, and steel wall plate 1d are welded, and the pre-opened bolt holes 71 on the vertical web connecting plate 7 are determined according to the node design and the force transmission of the frame nodes.
如图6和图7所示，所述上矩形套箍3、下矩形套箍4的制作方法一：经过规则截面尺寸的设计后，由矩形钢板焊接而成，形成矩形的闭合箍。As shown in Fig. 6 and Fig. 7, the first manufacturing method of the upper rectangular ferrule 3 and the lower rectangular ferrule 4: After designing the regular cross-sectional size, they are welded by rectangular steel plates to form a rectangular closed ferrule.
如图6和图7所示，所述上矩形套箍3、下矩形套箍4的制作方法二：经过规则截面尺寸的设计后，通过完整的矩形钢管截断而成，形成矩形的闭合箍。As shown in Fig. 6 and Fig. 7, the second manufacturing method of the upper rectangular ferrule 3 and the lower rectangular ferrule 4: After designing the regular cross-sectional size, they are formed by cutting off a complete rectangular steel pipe to form a rectangular closed hoop.
如图8示，所述上不等肢角钢长肢52在其肢背位置通过圆弧倒角使其长度由与所述上不等肢角钢短肢51长度相等变化至与所述H型钢梁2的上翼缘21宽度相等。As shown in Figure 8, the long limb 52 of the upper unequal limb angle steel changes its length from being equal to the length of the short limb 51 of the upper unequal limb angle steel to being equal to that of the H-shaped steel The upper flanges 21 of the beams 2 are of equal width.
如图9所示，所述下不等肢角钢长肢62在其肢背位置通过圆弧倒角使其长度由与所述下不等肢角钢短肢61长度相等变化至与所述H型钢梁2的下翼缘22宽度相等。As shown in Figure 9, the long limb 62 of the lower unequal limb angle steel changes its length from being equal to the length of the short limb 61 of the lower unequal limb angle steel to being equal to the length of the H-shaped The lower flanges 22 of the steel beams 2 are equal in width.
上述矩形钢管柱-H钢梁全螺栓连接半刚性节点的合理连接顺序为：The reasonable connection sequence of the above-mentioned rectangular steel pipe column-H steel beam fully bolted semi-rigid joints is:
1.根据合理的设计，工厂加工制作上矩形套箍3、下矩形套箍4，制作上不等肢角钢5、下不等肢角钢6，并根据矩形钢管柱1、H型钢梁2的截面大小及框架节点传力情况确定第一高强螺栓8、第二高强螺栓9、单向锁紧高强螺栓10尺寸和位置，预留相应的上矩形套箍螺栓孔31、下矩形套箍螺栓孔41、上不等肢角钢螺栓孔53、下不等肢角钢螺栓孔63、H型钢梁翼缘螺栓孔24、H型钢梁腹板螺栓孔25；1. According to a reasonable design, the factory processes and manufactures the upper rectangular ferrule 3, the lower rectangular ferrule 4, the upper unequal leg angle steel 5, and the lower unequal leg angle steel 6, and according to the requirements of the rectangular steel pipe column 1 and the H-shaped steel beam 2 The size and position of the first high-strength bolt 8, the second high-strength bolt 9, and the one-way locking high-strength bolt 10 are determined by the size of the section and the force transmission of the frame nodes, and the corresponding upper rectangular ferrule bolt holes 31 and lower rectangular ferrule bolt holes are reserved 41. Bolt hole 53 for upper unequal limb angle steel, 63 bolt hole for lower unequal limb angle steel, 24 bolt hole for flange of H-shaped steel beam, 25 bolt hole for web plate of H-shaped steel beam;
2.安装下矩形套箍4，安装下不等肢角钢6，下矩形套箍4套在下不等肢角钢短肢61上初步定位，并通过单向锁紧高强螺栓10与矩形钢管柱1连接，有效防止矩形钢管柱1因柱壁太薄造成局部屈曲及单向锁紧高强螺栓10锚固不足，与不等肢角钢共同工作，可以增强矩形钢管柱1和节点的整体受力性能；2. Install the lower rectangular ferrule 4, install the lower unequal leg angle steel 6, set the lower rectangular ferrule 4 on the short leg 61 of the lower unequal leg angle steel for preliminary positioning, and connect the rectangular steel pipe column 1 through the one-way locking high-strength bolt 10 , effectively prevent the rectangular steel pipe column 1 from being too thin to cause local buckling and insufficient anchoring of the one-way locking high-strength bolt 10, and work together with unequal limb angle steel to enhance the overall mechanical performance of the rectangular steel pipe column 1 and the joints;
3.安装定位H型钢梁2，将H型钢梁2的下翼缘22与下不等肢角钢长肢62通过第一高强螺栓8连接；3. Install and position the H-shaped steel beam 2, and connect the lower flange 22 of the H-shaped steel beam 2 with the lower unequal limb angle steel long limb 62 through the first high-strength bolt 8;
4.安装上不等肢角钢5，安装上矩形套箍3，上矩形套箍3套在上不等肢角钢短肢51上初步定位，并通过单向锁紧高强螺栓10与矩形钢管柱1连接，与不等肢角钢共同工作，有效防止矩形钢管柱1因柱壁太薄造成局部屈曲及单向锁紧高强螺栓10锚固不足；4. Install the upper unequal leg angle steel 5, install the upper rectangular ferrule 3, set the upper rectangular ferrule 3 on the short leg 51 of the upper unequal leg angle steel for preliminary positioning, and lock the high-strength bolt 10 and the rectangular steel pipe column 1 through one-way locking Connection, working together with unequal limb angle steel, effectively prevents local buckling of rectangular steel pipe column 1 due to too thin column wall and insufficient anchorage of one-way locking high-strength bolt 10;
5.将H型钢梁2的上翼缘21与上不等肢角钢长肢52通过第一高强螺栓8连接，从而形成矩形钢管柱1与H型钢梁2和连接传力部件形成的整体节点，可以增强矩形钢管柱1和节点的整体受力性能；5. Connect the upper flange 21 of the H-shaped steel beam 2 with the upper unequal limb angle steel long limb 52 through the first high-strength bolt 8, thereby forming a whole formed by the rectangular steel pipe column 1, the H-shaped steel beam 2 and the connecting force transmission parts Node, which can enhance the overall mechanical performance of the rectangular steel pipe column 1 and the node;
6.将竖向腹板连接板7与H型钢梁2的腹板23通过第二高强螺栓9装配连接，实现现场施工无焊接，提高施工效率。6. Assembling and connecting the vertical web connecting plate 7 and the web 23 of the H-shaped steel beam 2 through the second high-strength bolt 9, so as to realize no welding in on-site construction and improve construction efficiency.
7.当本层结构安装完成后，将连接传力部件处第一高强螺栓8、第二高强螺栓9及单向锁紧高强螺栓10进行终拧，完成节点的拼接安装。7. After the installation of the structure of this layer is completed, the first high-strength bolt 8, the second high-strength bolt 9 and the one-way locking high-strength bolt 10 at the connecting force transmission parts are finally screwed to complete the splicing and installation of the nodes.
节点位置的上矩形套箍3、下矩形套箍4及上不等肢角钢5、下不等肢角钢6相互约束共同工作：上矩形套箍3套在上不等肢角钢短肢51处，通过单向锁紧高强螺栓10与矩形钢管柱1连接，下矩形套箍4套在下不等肢角钢短肢61处，通过单向锁紧高强螺栓10与矩形钢管柱1连接，既提高了矩形钢管柱1对单向锁紧高强螺栓10的锚固作用，也给不等肢角钢连接提供了一定的刚度，同时也保证了节点区域矩形钢管柱1壁板的局部稳定性；The upper rectangular ferrule 3, the lower rectangular ferrule 4, the upper unequal leg angle steel 5, and the lower unequal leg angle steel 6 at the node position are mutually restrained and work together: the upper rectangular ferrule 3 is set on the short leg 51 of the upper unequal leg angle steel, The high-strength bolt 10 is connected to the rectangular steel pipe column 1 by one-way locking, and the lower rectangular ferrule 4 is set on the short leg 61 of the lower unequal limb angle steel. The anchoring effect of the steel pipe column 1 on the one-way locking high-strength bolt 10 also provides a certain rigidity for the angle steel connection of unequal limbs, and also ensures the local stability of the wall plate of the rectangular steel pipe column 1 in the node area;
剪力的传递路径，H型钢梁2上的剪力由腹板23承担，H型钢梁2的腹板23传来的竖向剪力通过第二高强螺栓9连接产生的摩擦力传递到竖向腹板连接板7，然后竖向腹板连接板7上所受剪力主要通过竖向的全熔透坡口对接焊缝13将荷载传递到矩形钢管柱1的钢壁板1a上；弯矩的传递路径，H型钢梁2的翼缘(上翼缘21、下翼缘22)传来的水平荷载通过第一高强螺栓8连接产生的摩擦力或螺栓杆与孔壁的挤压力传递给不等肢角钢(上不等肢角钢5、下不等肢角钢6)，然后不等肢角钢通过单向锁紧高强螺栓10将水平荷载传递到矩形套箍(上矩形套箍3、下矩形套箍4)和矩形钢管柱1上，矩形钢管柱1和矩形套箍共同承受力矩作用。各受力组件相互补充、充分发挥，整个连接节点传力明确、连接可靠、整体性能良好。The transmission path of the shear force, the shear force on the H-shaped steel beam 2 is borne by the web 23, and the vertical shear force transmitted from the web 23 of the H-shaped steel beam 2 is transmitted to the The vertical web connecting plate 7, and then the shear force on the vertical web connecting plate 7 mainly transmits the load to the steel wall plate 1a of the rectangular steel pipe column 1 through the vertical full penetration groove butt weld 13; The transmission path of the bending moment, the horizontal load transmitted from the flange (upper flange 21, lower flange 22) of the H-shaped steel beam 2 passes through the friction force generated by the connection of the first high-strength bolt 8 or the extrusion of the bolt rod and the hole wall The force is transmitted to the unequal limb angle steel (the upper unequal limb angle steel 5, the lower unequal limb angle steel 6), and then the unequal limb angle steel transmits the horizontal load to the rectangular hoop (the upper rectangular hoop 3 , the lower rectangular hoop 4) and the rectangular steel pipe column 1, the rectangular steel pipe column 1 and the rectangular hoop bear the moment action together. The force-bearing components complement each other and give full play to each other. The force transmission of the entire connection node is clear, the connection is reliable, and the overall performance is good.
综上，本实用新型适应装配式钢结构的发展，竖向腹板连接板7焊接部分在工厂内完成，现场采用螺栓进行装配，节点传力合理可靠，设计标准化，制造标准化，安装准确便捷，适用于矩形钢管柱1和H型钢梁2结构的装配式连接，同时本实用新型的节点为半刚性节点、延性好、抗震耗能能力强。To sum up, the utility model adapts to the development of assembled steel structures. The welding part of the vertical web connecting plate 7 is completed in the factory, and bolts are used for assembly on site. The joint force transmission is reasonable and reliable, the design is standardized, the manufacturing is standardized, and the installation is accurate and convenient. The utility model is suitable for the assembled connection of the rectangular steel pipe column 1 and the H-shaped steel beam 2 structure, and meanwhile, the joint of the utility model is a semi-rigid joint, has good ductility, and strong seismic energy consumption capacity.
尽管上面结合附图对本实用新型的优选实施例进行了描述，但是本实用新型并不局限于上述的具体实施方式，上述的具体实施方式仅仅是示意性的，并不是限制性的，本领域的普通技术人员在本实用新型的启示下，在不脱离本实用新型宗旨和权利要求所保护的范围情况下，还可以做出很多形式，这些均属于本实用新型的保护范围之内。Although the preferred embodiment of the utility model has been described above in conjunction with the accompanying drawings, the utility model is not limited to the above-mentioned specific implementation, and the above-mentioned specific implementation is only illustrative and not restrictive. Under the enlightenment of the utility model, those skilled in the art can also make many forms without departing from the purpose of the utility model and the protection scope of the claims, and these all belong to the protection scope of the utility model.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109537726A (en) * | 2018-12-29 | 2019-03-29 | 天津大学 | Rectangle steel tubing string-H girder steel is bolted structures with semi-rigid joints and construction method entirely |
| CN112982664A (en) * | 2021-03-08 | 2021-06-18 | 四川华浩建筑工程有限公司 | Buckling restrained steel structure beam column connecting node |
| US11761560B2 (en) * | 2020-02-19 | 2023-09-19 | Conxtech, Inc. | Modular pipe rack system |
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2018
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109537726A (en) * | 2018-12-29 | 2019-03-29 | 天津大学 | Rectangle steel tubing string-H girder steel is bolted structures with semi-rigid joints and construction method entirely |
| CN109537726B (en) * | 2018-12-29 | 2023-08-29 | 天津大学 | Rectangular steel pipe column-H steel beam full-bolt connection semi-rigid joint and construction method |
| US11761560B2 (en) * | 2020-02-19 | 2023-09-19 | Conxtech, Inc. | Modular pipe rack system |
| US12331862B2 (en) | 2020-02-19 | 2025-06-17 | Conxtech, Inc. | Modular pipe rack system |
| CN112982664A (en) * | 2021-03-08 | 2021-06-18 | 四川华浩建筑工程有限公司 | Buckling restrained steel structure beam column connecting node |
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