CN205688924U - Steel tower corner iron anti-bending unstability bracing means - Google Patents
Steel tower corner iron anti-bending unstability bracing means Download PDFInfo
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- 229910052742 iron Inorganic materials 0.000 title claims abstract description 29
- 238000005452 bending Methods 0.000 title claims abstract description 19
- 230000002787 reinforcement Effects 0.000 claims abstract description 16
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 12
- 230000000452 restraining effect Effects 0.000 claims abstract description 10
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Abstract
本实用新型公开了一种铁塔角钢防弯扭失稳加固装置，包括位于角钢外侧的约束构件和位于角钢内侧的加肋约束构件，所述的约束构件为一个“L”型支撑板I，所述的加肋约束构件包括一个“L”型支撑板II，在“L”型支撑板的内侧间隔设有多个横截面为矩形的加强肋板；所述的“L”型支撑板I和加强肋板之间形成夹持角钢的间隙，且“L”型支撑板I和“L”型支撑板II组装在一起形成方形外包加固装置。
The utility model discloses an anti-bending and torsional instability reinforcing device for iron tower angle steel, which comprises a restraining member located outside the angle steel and a ribbed restraining member located inside the angle steel, the restraining member is an "L"-shaped support plate I, the The ribbed constraining member includes an "L"-shaped support plate II, and a plurality of reinforcing ribs with a rectangular cross section are arranged at intervals on the inner side of the "L"-shaped support plate; the "L"-shaped support plate I and A gap for clamping angle steel is formed between the reinforcing ribs, and the "L"-shaped support plate I and the "L"-shaped support plate II are assembled together to form a square outsourcing reinforcement device.
Description
技术领域technical field
本实用新型属于角钢构件防屈曲加固领域，具体涉及防止输电塔或通讯塔等铁塔角钢发生整体或局部失稳的加固方法。The utility model belongs to the field of anti-buckling reinforcement of angle steel components, in particular to a reinforcement method for preventing the overall or local instability of the angle steel of iron towers such as power transmission towers or communication towers.
背景技术Background technique
输电线路作为生命线工程，其安全稳定关系着人们的生命财产安全。此外，伴随着通讯技术的发展，服役中的通讯塔升级扩容问题成为重中之重。目前，许多输电铁塔或通讯塔建设时是根据当时的技术标准、功能要求和使用性能为基础进行设计和施工的。在投入使用多年后，在新的使用条件下，所受荷载或传力途径等发生变化，或在外界环境作用下，出现不可避免的损伤和缺陷，引起宏观力学性能的恶化，为工程事故的发生埋下恶果。因此，对既有铁塔加固补强改造迫在眉睫。As a lifeline project, the safety and stability of power transmission lines is related to the safety of people's lives and properties. In addition, with the development of communication technology, the issue of upgrading and expanding the capacity of communication towers in service has become a top priority. At present, many transmission towers or communication towers are designed and constructed based on the technical standards, functional requirements and performance at that time. After being put into use for many years, under the new conditions of use, the load or force transmission path changes, or under the action of the external environment, inevitable damage and defects appear, causing the deterioration of macroscopic mechanical properties, which is the cause of engineering accidents. The consequences are planted. Therefore, it is imminent to strengthen and reform the existing iron towers.
角钢塔施工简单，运输方便，被广泛应用于输电线路及通讯体系中，约占全球铁塔的80%左右。角钢塔中的角钢，实际上是属于双向偏心受压构件，其受力非常复杂。角钢受压可能呈现的屈曲模式包含整体失稳（含弯曲失稳、扭转失稳、弯扭失稳）以及局部失稳。无论发生哪种屈曲模式，角钢屈曲后强度和刚度都会显著下降，容易诱发结构局部或者整体的倒塌。Angle steel towers are easy to construct and convenient to transport, and are widely used in power transmission lines and communication systems, accounting for about 80% of the world's iron towers. The angle steel in the angle steel tower is actually a two-way eccentric compression member, and its stress is very complicated. The possible buckling modes of angle steel under compression include overall instability (including bending instability, torsional instability, and bending-torsion instability) and local instability. No matter which buckling mode occurs, the strength and stiffness of the angle steel will decrease significantly after buckling, and it is easy to induce partial or overall collapse of the structure.
为防止构件屈曲导致的强度和刚度退化，近年来人们开发了屈曲约束支撑（Buckling restrained brace. BRB），改善了传统中心支撑在地震或风荷载作用下存在受压屈曲的问题，增大了结构的经济性。In order to prevent the degradation of strength and stiffness caused by component buckling, people have developed buckling restrained braces (BRB) in recent years, which has improved the problem of compressive buckling of traditional central supports under earthquake or wind loads, and increased the structural strength. economy.
实用新型内容Utility model content
本实用新型目的是提供一种用于铁塔角钢加固装置，主要防止铁塔角钢的弯扭失稳及局部失稳，提高结构的防屈曲承载力。本实用新型沿角钢受压构件的外表面设置两个变形约束构件，二者通过螺栓连接，形成外包方形截面。沿角钢长度方向，间隔一定距离设置肋板。此套装置可以起到防止角钢发生整体失稳和局部失稳的作用，提高了角钢的极限受压承载力。The purpose of the utility model is to provide a reinforcing device for iron tower angle steel, which mainly prevents the bending and torsional instability and local instability of the iron tower angle steel, and improves the anti-buckling bearing capacity of the structure. In the utility model, two deformation constraining members are arranged along the outer surface of the angle steel compression member, and the two are connected by bolts to form an outsourcing square section. Along the length direction of the angle steel, the ribs are arranged at a certain distance. This set of devices can prevent the overall instability and local instability of the angle steel, and improve the ultimate compressive bearing capacity of the angle steel.
为实现上述目的，本实用新型采用下述技术方案：In order to achieve the above object, the utility model adopts the following technical solutions:
铁塔角钢防弯扭加固装置，包括位于待约束角钢外侧的约束构件和位于待约束角钢内侧的加肋约束构件，The anti-bending and torsion strengthening device for the angle steel of the iron tower includes a restraint member located outside the angle steel to be restrained and a rib restraint member located inside the angle steel to be restrained,
所述的约束构件为一个“L”型支撑板I，所述的加肋约束构件包括一个“L”型支撑板II，在“L”型支撑板的内侧间隔设有多个横截面为矩形的加强肋板；The constraining member is an "L"-shaped support plate I, and the ribbed constraining member includes an "L"-shaped support plate II, and a plurality of rectangular cross-sections are arranged at intervals on the inner side of the "L"-shaped support plate. stiffeners;
所述的“L”型支撑板I和加强肋板之间形成夹持所述角钢的间隙，且“L”型支撑板I和“L”型支撑板II组装在一起形成方形外包加固装置。A gap for clamping the angle steel is formed between the "L"-shaped support plate I and the reinforcing rib plate, and the "L"-shaped support plate I and the "L"-shaped support plate II are assembled together to form a square external reinforcement device.
进一步的，所述“L”型支撑板I的肢宽大于待约束角钢肢宽，在待约束角钢肢宽边缘设置螺栓孔。Further, the leg width of the "L"-shaped support plate I is larger than the leg width of the angle steel leg to be constrained, and bolt holes are set at the edge of the leg width of the angle steel leg to be constrained.
进一步的，所述“L”型支撑板II的肢宽与待约束角钢大致相同，在“L”型支撑板II的肢末设置90°拐角，并在拐角位置的支撑板上设置螺栓孔，用于安装固定。Further, the limb width of the "L" type support plate II is approximately the same as the angle steel to be restrained, a 90° corner is set at the end of the limb of the "L" type support plate II, and bolt holes are set on the support plate at the corner position, For mounting and fixing.
进一步的，所述“L”型支撑板I和“L”型支撑板II通过螺栓连接。Further, the "L"-shaped support plate I and the "L"-shaped support plate II are connected by bolts.
进一步的，所述约束构件和加肋约束构件均采用GFRP材料。Further, both the constraining member and the ribbed constraining member are made of GFRP material.
进一步的，所述约束构件及加肋约束构件的长度约为待约束角钢的4/5左右，位于待约束角钢的中部。Further, the length of the constraining member and the ribbed constraining member is about 4/5 of the angle steel to be constrained, and is located in the middle of the angle steel to be constrained.
进一步的，在约束构件或/和加肋约束构件的底部设有限位挡块。Further, limit stops are provided at the bottom of the constraining member or/and the ribbed constraining member.
进一步的，所述的限位挡块设置在待约束角钢标高较低的一端。Further, the limit stopper is set at the lower end of the angle steel to be constrained.
进一步的，所述的限位挡块采用GFRP材料。Further, the limit stopper is made of GFRP material.
进一步的，所述的限位挡块通过环氧树脂粘贴在待约束角钢表面。Further, the limit stopper is pasted on the surface of the angle steel to be constrained by epoxy resin.
本实用新型的有益效果如下：The beneficial effects of the utility model are as follows:
本实用新型可用于加固现有铁塔的角钢，提高铁塔的抗压承载力，并防止角钢的局部及整体屈曲。本实用新型可直接针对正在服役的输电塔或通讯塔等铁塔角钢进行加固，不需焊接，避免产生残余应力及局部损伤。该实用新型通过约束构件2对角钢进行加固，不会造成内力重分布。本实用新型操作简单，安装速度快，性价比高；可用于各类需要加固的角钢塔，并且实现大批量角钢铁塔的加固。The utility model can be used to reinforce the angle steel of the existing iron tower, improve the compressive bearing capacity of the iron tower, and prevent local and overall buckling of the angle steel. The utility model can directly reinforce the angle steels of iron towers such as power transmission towers or communication towers in service without welding and avoid residual stress and local damage. The utility model reinforces the angle steel through the constraining member 2, which does not cause redistribution of internal force. The utility model has the advantages of simple operation, fast installation speed and high cost performance; it can be used for various angle steel towers that need to be reinforced, and realizes the reinforcement of large quantities of angle steel towers.
本实用新型旨在角钢构件中施加变形约束构件，以实现屈曲约束的机制。本实用新型拟采用基于FRP材料的约束构件预防角钢的局部失稳和包含弯扭变形的整体失稳。该装置加工方便，施工简单，性价比高，可对正在服役的铁塔角钢进行加固。另外，FRP（fiberReinforced Plastic）材料具有强度高，不易变形、无电腐蚀、非磁性、耐热性和耐火性高，具有良好的耐化学腐蚀性，在酸、碱、氯盐和潮湿环境中可以长期使用，并有施工方便、重量轻、使用寿命长和价格低廉等优点。The utility model aims at applying a deformation restraint member to an angle steel member to realize a mechanism of buckling restraint. The utility model intends to use the restraining member based on FRP material to prevent the local instability of the angle steel and the overall instability including bending and twisting deformation. The device has the advantages of convenient processing, simple construction and high cost performance, and can strengthen the angle steel of iron towers in service. In addition, FRP (fiberReinforced Plastic) material has high strength, not easy to deform, no electrocorrosion, non-magnetic, high heat resistance and fire resistance, good chemical corrosion resistance, can be used in acid, alkali, chloride salt and humid environment Long-term use, and has the advantages of convenient construction, light weight, long service life and low price.
附图说明Description of drawings
为了更清楚地说明本实用新型实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图是本实用新型的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description These are some embodiments of the present utility model. Those skilled in the art can also obtain other drawings based on these drawings without any creative work.
图1是铁塔三维示意图；Fig. 1 is a three-dimensional schematic diagram of an iron tower;
图2是铁塔角钢防弯扭加固装置示意图；Fig. 2 is a schematic diagram of an iron tower angle steel anti-bending and twisting reinforcement device;
图3是铁塔角钢防弯扭加固装置截面示意图；Fig. 3 is a cross-sectional schematic diagram of an iron tower angle steel anti-bending and twisting reinforcement device;
图中：1 角钢，2约束构件，3加肋约束构件，4 肋板，5螺栓，6 限位挡块。In the figure: 1 Angle steel, 2 Constraint member, 3 Ribbed restraint member, 4 Rib plate, 5 Bolt, 6 Limit stopper.
具体实施方式detailed description
以下结合技术方案和附图详细叙述本实用新型的实施方式。The following describes the implementation of the utility model in detail in conjunction with technical solutions and accompanying drawings.
如图2、3所示：铁塔角钢防弯扭失稳加固装置，包括约束构件2、加肋约束构件3及若干螺栓5，约束构件位于角钢1的外侧，其肢宽大于角钢肢宽，在其肢宽的边缘设置螺栓孔；加肋约束构件3则位于角钢内侧，与约束构件2相对设置，并沿长度方向间隔设置肋板4。加肋约束构件肢宽与角钢肢宽大致相同，在加肋约束构件3肢端设置90°拐角，在拐角部分设置螺栓孔。约束构件与加肋约束构件通过螺栓5连接，形成方形的外包加固体系。两块约束构件长度约为角钢的4/5左右，位于角钢长度的中间位置。As shown in Figures 2 and 3, the tower angle steel anti-bending and torsional instability reinforcement device includes a restraint member 2, a ribbed restraint member 3 and a number of bolts 5. The restraint member is located on the outside of the angle steel 1, and its leg width is greater than that of the angle steel leg. Bolt holes are set on the edge of its limb width; the ribbed restraint member 3 is located inside the angle steel, opposite to the restraint member 2, and ribs 4 are arranged at intervals along the length direction. The limb width of the ribbed constraining member is approximately the same as that of the angle steel leg, and a 90° corner is set at the extremity of the ribbed constraining member 3, and bolt holes are set at the corner. The restraint member and the ribbed restraint member are connected by bolts 5 to form a square outsourcing reinforcement system. The length of the two constraining members is about 4/5 of the angle steel, located in the middle of the angle steel length.
肋板4间距可根据计算及加固角钢的长度进行设置。肋板边缘距离角钢内侧应留有合适间隙，防止构件尺寸误差所造成的安装不便。The distance between the ribs 4 can be set according to the calculation and the length of the reinforced angle steel. There should be a proper gap between the edge of the rib plate and the inner side of the angle steel to prevent installation inconvenience caused by component size errors.
约束构件2和加肋约束构件3的厚度可根据实际情况计算得，两种约束构件厚度可相同。肋板厚度同约束构件。两类约束构件可进行工厂化加工，一次成型，操作简单、施工方便，且有较稳定的受力性能。The thicknesses of the constraining member 2 and the ribbed constraining member 3 can be calculated according to the actual situation, and the thickness of the two constraining members can be the same. The thickness of the ribs is the same as that of the constraining members. The two types of constraining members can be processed in a factory and formed at one time. The operation is simple, the construction is convenient, and it has relatively stable mechanical performance.
约束构件2和加肋约束构件3位于被加固角钢的4/5左右，在角钢两端各留1/10的距离。The restraint member 2 and the ribbed restraint member 3 are located at about 4/5 of the angle steel to be reinforced, leaving a distance of 1/10 at both ends of the angle steel.
限位挡块6采用FRP材料，设置于角钢的一端（若角钢两端标高不同，挡块应布置在标高较低的一端），通过聚酯纤维粘贴在被加固角钢的表面，旨在确保约束构件不沿角钢轴向发生显著滑动。The limit stopper 6 is made of FRP material and is set at one end of the angle steel (if the two ends of the angle steel have different elevations, the stopper should be arranged at the end with a lower elevation), and is pasted on the surface of the reinforced angle steel by polyester fiber to ensure the restraint The member does not slide significantly along the angle axis.
进一步的，约束构件2和加肋约束构件3和肢宽大于角钢肢宽，在约束构件肢宽边缘设置螺栓孔，便于固定。Further, the restraint member 2 and the ribbed restraint member 3 and the leg width are larger than the angle steel leg width, and bolt holes are provided at the edge of the restraint member leg width for easy fixing.
进一步的，加肋约束构件3肢宽与角钢大致相同，在肢末设置90°拐角，并在拐角支撑板上设置螺栓孔，用于安装固定。加肋约束构件沿长度方向间隔设置肋板。加肋约束构件2一次成型，方便安装使用和大批量生产，并且可以防止产生操作误差。Further, the width of the ribbed constraining member 3 is roughly the same as that of the angle steel, a 90° corner is set at the end of the limb, and bolt holes are set on the corner support plate for installation and fixing. The ribbed constraining member is provided with ribs at intervals along the length direction. The ribbed constraining member 2 is molded at one time, which is convenient for installation and use and mass production, and can prevent operational errors.
进一步的，约束构件2和加肋约束构件3通过螺栓5连接。螺栓应尽量使用较小规格的螺栓，建议采用M16螺栓。一般角钢构件可采用三个定位螺栓，位于约束构件的两端及中间，角钢构件较长时，可视情况增加定位螺栓的数量。Further, the restraint member 2 and the ribbed restraint member 3 are connected by bolts 5 . The bolts should be as small as possible, and it is recommended to use M16 bolts. Generally, three positioning bolts can be used for angle steel members, which are located at both ends and in the middle of the restraining member. When the angle steel members are longer, the number of positioning bolts can be increased according to the situation.
进一步的，约束构件2及加肋约束构件3固长度约为角钢的4/5左右，固定于角钢的中间位置。Further, the fixed length of the constraining member 2 and the ribbed constraining member 3 is about 4/5 of the angle steel, and they are fixed at the middle position of the angle steel.
进一步的，限位挡块6设置于角钢1的一端（若角钢两端标高不同，挡块应布置在标高较低的一端），通过聚酯纤维粘贴在被加固角钢表面，确保该装置在受拉受压过程中不会发生脱落。Further, the limit stopper 6 is set at one end of the angle steel 1 (if the two ends of the angle steel have different elevations, the stopper should be arranged at the end with a lower elevation), and the polyester fiber is pasted on the surface of the reinforced angle steel to ensure that the device It will not fall off during tension and compression.
约束构件2及加肋约束构件3拟采用FRP材料，FRP称为玻璃钢或玻璃钢增强塑料，工程结构中常用的FRP主材主要有碳纤维（CFRP）、玻璃纤维（GFRP）及芳纶纤维（AFRP），其材料形式主要有片材(纤维布和板)、棒材(筋材和索材)及型材（格栅型、工字型、蜂窝型等）。其中GFRP具有强度高、不易变形、非磁性、耐热性和耐火性高的特点，具有较好的耐化学腐蚀性和较长的使用寿命，且施工方便，质量小，价格低廉，可一次成型并工厂化生产。本专利约束构件及加肋约束构件不仅仅局限于FRP材料，也可以考虑其他材料（如钢材、铝合金等）；另外，肋板也可由轻质高强的填充材料替代。Constraint member 2 and ribbed restraint member 3 are proposed to use FRP material. FRP is called glass fiber reinforced plastic or fiberglass reinforced plastic. The main materials of FRP commonly used in engineering structures are carbon fiber (CFRP), glass fiber (GFRP) and aramid fiber (AFRP). , and its material forms mainly include sheet (fiber cloth and board), bar (reinforcement and cable) and profile (grid type, I-type, honeycomb type, etc.). Among them, GFRP has the characteristics of high strength, not easy to deform, non-magnetic, high heat resistance and fire resistance, has good chemical corrosion resistance and long service life, and is convenient for construction, small in quality, low in price, and can be formed at one time And factory production. The restraint members and ribbed restraint members of this patent are not limited to FRP materials, and other materials (such as steel, aluminum alloy, etc.) can also be considered; in addition, the ribs can also be replaced by lightweight and high-strength filler materials.
进一步的，约束构件2为一个“L”型支撑板I，加肋约束构件3包括一个“L”型支撑板II，在“L”型支撑板的内侧间隔设有多个横截面为矩形的加强肋板4；Further, the constraining member 2 is an "L"-shaped support plate I, and the ribbed constraining member 3 includes an "L"-shaped support plate II, and a plurality of rectangular cross-sections are arranged at intervals inside the "L"-shaped support plate. Strengthening ribs 4;
所述的“L”型支撑板I和加强肋板之间形成夹持角钢的间隙，且“L”型支撑板I和“L”型支撑板II组装在一起形成方形外包加固装置。A gap for holding angle steel is formed between the "L"-shaped support plate I and the reinforcing rib plate, and the "L"-shaped support plate I and the "L"-shaped support plate II are assembled together to form a square external reinforcement device.
进一步的，“L”型支撑板I的肢宽大于角钢肢宽，在角钢肢宽边缘设置螺栓孔。Further, the leg width of the "L"-shaped support plate I is larger than that of the angle steel leg, and bolt holes are set on the edge of the angle steel leg width.
进一步的，“L”型支撑板II的肢宽与角钢大致相同，在“L”型支撑板II的肢末设置90°拐角，并在拐角支撑板上设置螺栓孔，用于安装固定。Further, the limb width of the "L" type support plate II is approximately the same as that of the angle steel, and a 90° corner is set at the end of the limb of the "L" type support plate II, and bolt holes are provided on the corner support plate for installation and fixing.
进一步的，“L”型支撑板I和“L”型支撑板II通过螺栓5连接，螺栓5旨在连接约束构件及加肋约束构件，可在确保约束构件预期功能的情况下尽量减小螺栓用量以缩小材料和安装成本。Further, the "L"-shaped support plate I and the "L"-shaped support plate II are connected by bolt 5, and the bolt 5 is designed to connect the restraint member and the ribbed restraint member, which can minimize the number of bolts while ensuring the expected function of the restraint member usage to minimize material and installation costs.
本实施方案中需要注意以下几个方面：In this implementation, the following aspects need to be paid attention to:
第一，约束构件的肋板距离角钢内侧边缘应留有空隙，防止构件尺寸误差，造成安装不便。First, there should be a gap between the rib plate of the restraining member and the inner edge of the angle steel to prevent the size error of the member and cause installation inconvenience.
第二，在对角钢进行加固之前，要对铁塔进行综合评估，以设计并确定约束构件的尺寸，达到较好的加固效果。Second, before strengthening the angle steel, it is necessary to conduct a comprehensive evaluation of the iron tower to design and determine the size of the restraining components to achieve a better strengthening effect.
本实施方案中，应当根据结构的具体情况确定铁塔角钢加固装置的安装位置和数量，以达到最佳的加固效果。In this embodiment, the installation position and quantity of the iron tower angle steel reinforcement device should be determined according to the specific conditions of the structure, so as to achieve the best reinforcement effect.
本实用新型在铁塔角钢外侧设置约束构件，内侧设置加肋约束构件，两个约束构件相对设置，通过螺栓连接。实现在无焊接的情况下，对正在服役的输电塔或通讯塔等铁塔的角钢进行加固的目的。In the utility model, a constraining member is arranged on the outer side of the iron tower angle steel, and a ribbed constraining member is arranged on the inner side, and the two constraining members are arranged oppositely and connected by bolts. To achieve the purpose of reinforcing the angle steel of iron towers such as transmission towers or communication towers in service without welding.
本实用新型的上述实施方案并不是对本实用新型保护范围的限定，本实用新型的实施方式不限于此，凡此种根据本实用新型的上述内容，按照本领域的普通技术知识和惯用手段，在不脱离本实用新型上述基本技术思想前提下，对本实用新型上述结构做出的其它多种形式的修改、替换或变更，均应落在本实用新型的保护范围之内。The above-mentioned embodiments of the utility model do not limit the scope of protection of the utility model, and the implementation of the utility model is not limited thereto. All such implementations are based on the above-mentioned content of the utility model, according to common technical knowledge and conventional means in the art, in On the premise of not departing from the above-mentioned basic technical idea of the present utility model, other modifications, replacements or changes made to the above-mentioned structure of the present utility model in various forms shall fall within the protection scope of the present utility model.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105952239A (en) * | 2016-06-21 | 2016-09-21 | 山东大学 | Reinforcement device for preventing flexural-torsional buckling of angle steel for iron towers |
| CN107747424A (en) * | 2017-11-27 | 2018-03-02 | 深圳带路科技有限公司 | A kind of nested type reinforces steel tower |
| CN112761375A (en) * | 2021-01-05 | 2021-05-07 | 东南大学 | Anti-destabilization reinforcing device for angle steel of transmission tower |
| CN112922385A (en) * | 2021-04-01 | 2021-06-08 | 大连理工大学 | Porous steel-clad transmission tower main material uninterrupted power reinforcing device |
-
2016
- 2016-06-21 CN CN201620622836.XU patent/CN205688924U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105952239A (en) * | 2016-06-21 | 2016-09-21 | 山东大学 | Reinforcement device for preventing flexural-torsional buckling of angle steel for iron towers |
| CN105952239B (en) * | 2016-06-21 | 2018-01-09 | 山东大学 | The anti-bending unstability bracing means of steel tower corner iron |
| CN107747424A (en) * | 2017-11-27 | 2018-03-02 | 深圳带路科技有限公司 | A kind of nested type reinforces steel tower |
| CN112761375A (en) * | 2021-01-05 | 2021-05-07 | 东南大学 | Anti-destabilization reinforcing device for angle steel of transmission tower |
| CN112922385A (en) * | 2021-04-01 | 2021-06-08 | 大连理工大学 | Porous steel-clad transmission tower main material uninterrupted power reinforcing device |
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