WO2023040214A1 - 一种螺栓承压环抱式输电铁塔角钢加固与矫正装置 - Google Patents

一种螺栓承压环抱式输电铁塔角钢加固与矫正装置 Download PDF

Info

Publication number
WO2023040214A1
WO2023040214A1 PCT/CN2022/079996 CN2022079996W WO2023040214A1 WO 2023040214 A1 WO2023040214 A1 WO 2023040214A1 CN 2022079996 W CN2022079996 W CN 2022079996W WO 2023040214 A1 WO2023040214 A1 WO 2023040214A1
Authority
WO
WIPO (PCT)
Prior art keywords
angle steel
reinforced
bolt
reinforcement
reinforcing
Prior art date
Application number
PCT/CN2022/079996
Other languages
English (en)
French (fr)
Inventor
田利
杨萌
刘俊才
罗贤超
王晓阳
马震
孟祥瑞
Original Assignee
山东大学
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 山东大学 filed Critical 山东大学
Priority to US17/917,172 priority Critical patent/US11802414B2/en
Publication of WO2023040214A1 publication Critical patent/WO2023040214A1/zh

Links

Images

Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H12/00—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures
    • E04H12/02—Structures made of specified materials
    • E04H12/08—Structures made of specified materials of metal
    • E04H12/10—Truss-like structures
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G23/00—Working measures on existing buildings
    • E04G23/02—Repairing, e.g. filling cracks; Restoring; Altering; Enlarging
    • E04G23/0218—Increasing or restoring the load-bearing capacity of building construction elements
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H12/00—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures
    • E04H12/02—Structures made of specified materials
    • E04H12/08—Structures made of specified materials of metal

Definitions

  • the invention relates to a structure strengthening technology of a power transmission tower, in particular to a bolt pressure-embracing angle steel reinforcement and correction device for a power transmission tower.
  • the transmission tower structure itself has insufficient bearing capacity or later damage, which eventually leads to the destruction of components and even the collapse of the transmission tower structure, which seriously affects people's normal production and life, and even seriously affects disaster rescue work.
  • the angle steel members of transmission towers that have buckled and damaged, although the angle steel members can continue to be used in the case of slight damage, they can only be replaced if they have been deformed, resulting in a large waste of material resources. Therefore, to improve the ability of the power grid to resist natural disasters, the transmission towers should be put into service.
  • the post-reinforcement protection is of great significance for repairing the damaged rods of the transmission tower and ensuring the safe and stable operation of the power grid and the safety of power supply under severe natural disasters.
  • the first type is to add auxiliary materials to the main materials of transmission towers through various methods, or directly replace weak components that are prone to damage in the original structure with components of another specification to strengthen The bearing capacity of the components can achieve the purpose of improving the stability of the tower;
  • the second type is to increase the shear resistance and overall stability of the weak nodes of the transmission tower by adding transverse partitions between the nodes of the transmission tower, and improve the overall bearing capacity of the structure .
  • the purpose of the present invention is to provide an encircling bolt pressure transmission tower angle steel reinforcement and correction device, which is mainly a detachable anti-buckling reinforcement and correction device suitable for transmission tower reinforcement proposed for transmission tower reinforcement.
  • a device for correcting deformation of angle steel is mainly a detachable anti-buckling reinforcement and correction device suitable for transmission tower reinforcement proposed for transmission tower reinforcement.
  • the present invention adopts following technical scheme:
  • the present invention proposes a device for reinforcing and correcting the angle steel of an encircling bolt pressure-bearing power transmission tower for an iron tower, including a reinforced angle steel, a hoop, a connector, a high-strength bolt and an elongated bolt;
  • a reinforced angle steel On the inner side, the axis direction of the reinforced angle steel is parallel to the angle steel to be reinforced, and the outer walls of the two limbs of the reinforced angle steel are attached to the inner wall of the angle steel to be reinforced;
  • the hoop is placed on the outside of the reinforced angle steel and the angle steel to be reinforced, and connected by high-strength bolts;
  • the side wall of the hoop is provided with three sets of threaded holes, wherein the axes of the first and second sets of threaded holes are perpendicular to each other, and the first set of bolts passes through the first set of threaded holes to apply reinforcement force to the outside of one of the angle steels to be reinforced.
  • the second group of bolts passes through the second group of threaded holes to apply reinforcing force to the outside of the other limb of the angle steel to be reinforced;
  • the third group of bolts passes through the third group of threaded holes to apply reinforcement force to the reinforced angle steel through the connector.
  • the connector includes a connector support, a pin shaft, and a support pad.
  • the support pad is connected to the two connector supports through the pin shaft, and the two connector supports and the support pad can rotate around the pin shaft. to rotate.
  • the connector support includes a bolt sleeve and a bolt, one end of the bolt sleeve is connected to the pin shaft, and the other end of the bolt sleeve is matched with the fourth bolt, and the fourth bolt is pressed on the reinforced angle steel .
  • the present invention can adjust the reinforcement effect of the reinforcement device by changing the diameter of the bolt holes, the diameters of the three groups of bolts, the number of bolt holes, and adjusting the angle of the connector and the length of the support on both sides of the connector; for the angle steel to be reinforced with special reinforcement requirements, the The reinforced angle steel or hoop is long along the axis direction of the angle steel to be reinforced, so as to improve the compressive bearing capacity of the entire angle steel to be reinforced; for the angle steel member of the transmission tower that has undergone slight buckling deformation, the hoop can be installed at the deformed position, and then adjusted The pitch of the bolts on the circular-arc steel plate in the middle is used to lift the bulging angle steel member and reset it. On the left and right sides, the pitch is also adjusted to constrain the position of the angle steel to prevent over-correction.
  • the present invention proposes an encircling bolt pressure transmission tower angle steel reinforcement and correction device, which can reinforce the insufficiently loaded angle steel components in the transmission tower according to the reinforcement requirements, and can correct and repair the buckling and damaged angle steel components of the transmission tower , effectively improving the overall stable bearing capacity of the transmission tower.
  • the present invention does not need to drill holes on the raw materials of the transmission tower on site, which effectively avoids the problem that some transmission towers to be reinforced are far away, which makes it difficult to obtain construction electricity and thus difficult to construct.
  • the present invention does not need to temporarily disassemble the original stress-bearing components, and avoids complex stress redistribution in local areas, which will cause the transmission tower to be in a dangerous state during the reinforcement process.
  • Three groups of threaded holes are provided on the side wall of the hoop in the present invention, the axes of the left and right groups of threaded holes are perpendicular to each other, and the three groups of threaded holes are correspondingly distributed at equal intervals, and each threaded hole is treated with a corresponding extension bolt to reinforce the angle steel or Reinforcement angles exert a certain amount of force.
  • the present invention has the advantages of simple structure, convenient maintenance and obvious effect, and can effectively improve the bearing capacity and overall stability of transmission tower rods.
  • Fig. 1 is a schematic diagram of an angle steel bar reinforcement device for an embracing bolt pressure transmission tower angle steel reinforcement device
  • Fig. 2 is a kind of embracing bolt pressure transmission iron tower angle steel reinforcement device angle steel bar piece reinforcement device sketch map
  • Fig. 3 is a top view of an encircling bolt pressure transmission tower angle steel reinforcement device
  • Fig. 4 is a detailed view of a connector of an embracing bolt pressure transmission tower angle steel reinforcement device
  • Fig. 5 is a detailed view of a connector of an embracing bolt pressure transmission tower angle steel reinforcement device
  • this device can adapt to various load modes and effectively improve the overall stable bearing capacity of the transmission tower.
  • the device is completely assembled, and there is no need to drill holes on the raw materials of the transmission tower on site, thereby effectively avoiding damage to the overall structure of the transmission tower and reducing construction difficulty. There is no need to temporarily dismantle the original stress-bearing components to prevent stress redistribution and make the iron tower in a dangerous state during the reinforcement process.
  • the device for strengthening and correcting the angle steel of the embracing bolt pressure-bearing power transmission tower disclosed in this embodiment mainly includes the reinforcement angle steel 2, the first hoop 3, the second hoop 4, high-strength bolts 5, connectors, rubber gaskets 7, and extension bolts 8-1, lengthening bolt 8-2, lengthening bolt 8-3, etc., the angled steel plate 2 is placed inside the original main material rod 1, and the axial direction of the reinforced angle steel 2 is consistent with the axis direction of the original main material rod 1.
  • the hoop is set on the outer ring of the reinforced angle steel 2 and the original main material rod 1, the extension bolt 8-1 passes through the hoop to apply force to the connector, and the connector applies force to the reinforced angle steel 2; the extension bolt 8-2, the extension bolt 8-3 Apply force to the original main material rod 1 (angle steel to be reinforced) through the hoop, that is, the hoop forms extrusion with the original main material rod 1 (angle steel to be reinforced) through the extension bolts 8-2, 8-3, The extension bolt 8-1 and the connector and the reinforcement angle steel 2 are also extruded.
  • each group of threaded holes includes There are a plurality of threaded holes, and a corresponding extension bolt is installed in each threaded hole.
  • the original main material rod 1 is squeezed between the reinforced angle steel 2 and the hoop, and rubber gaskets are added to the contact parts of the extension bolt 8 and the connector and the original main material rod 1 to prevent the bolt from being damaged during tightening.
  • the angle steel member causes damage and increases the friction between the bolt and the angle steel, preventing the reinforcement device from moving along the axis of the bar.
  • the thickness of the reinforced angle steel 2 is less than or equal to the thickness of the original main material bar 1 .
  • a plurality of hoops are arranged equidistantly along the axial direction, and the reinforcement effect can be adjusted by increasing or decreasing the number of hoops.
  • the reinforced angle steel 2 is subjected to corner cutting treatment, so that the reinforced angle steel is attached to the reinforced angle steel.
  • the above-mentioned connector 6 is shown in Figure 4 and Figure 5, which includes a connector support 6-1, a pin shaft 6-2, and a support pad 6-3, and the support pad 6-3 passes through the pin
  • the shaft 6-2 is connected with two connector supports 6-1, and the two connector supports 6-1 and the support gasket 6-3 can rotate around the pin shaft to adjust the reinforcement effect.
  • the connector support 6-1 includes a bolt sleeve 6-1-1 and a bolt 6-1-2, and the bolt sleeve 6-1-1 cooperates with the bolt 6-1-2, through Rotating the bolt sleeve 6-1-1 can adjust the length of the bolt 6-1-2, thereby realizing the adjustment of the length of the connector support 6-1, and realizing the support constraint at any position of the reinforced angle steel.
  • the hoop is composed of three equally divided arc steel plates, and the arc steel plates are connected by high-strength bolts 5; the curvature of the hoop is determined according to the limb length of the angle steel to be reinforced, so that the hoop can be connected with the Reinforced angle steel bonding; in the present embodiment, the three parts of the hoop are respectively: a first hoop 3 and two second hoops 4, the center of the first hoop 3 is provided with a through hole, A through hole is opened at a non-central position of the second hoop 4 , and axes of the through holes of the two second hoops 4 are perpendicular to each other.
  • the reinforcement device When the original main material rod 1 is subjected to axial tension or pressure, for the cross section of the rod, adding this reinforcement device can effectively disperse the stress on the original main material rod 1 to the reinforced angle steel 2.
  • the weak section the stress can be effectively distributed to the reinforced angle steel 2 and the hoop clamp, thereby reducing the stress on the original main material member 1 and preventing the original main material from buckling under compression.
  • the reinforced angle steel 2 can increase the compression cross-sectional area, thereby improving the bearing capacity and stability of the original main material member 1.
  • the extension bolts can act as stiffeners.
  • the reinforcement device installed in the compression area can increase the buckling critical stress of the compression member and restrain the buckling deformation.
  • this device proposes a new type of reinforcement and correction method for transmission tower rods, which can adapt to various load modes and effectively improve the overall stable bearing capacity of transmission towers.
  • the device does not need to drill holes on the raw materials of the transmission tower on site, which effectively avoids the problem that some transmission towers to be reinforced are far away, which makes it difficult to obtain construction electricity, which makes construction difficult and implementation difficult.
  • the device does not need to temporarily dismantle the original force-bearing components, and prevents the stress from being redistributed so that the iron tower is in a dangerous state during the reinforcement process.
  • the device has the advantages of simple structure, convenient maintenance and obvious effect, and can effectively improve the bearing capacity and overall stability of transmission tower rods.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Structural Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Mechanical Engineering (AREA)
  • Electrochemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Materials Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Working Measures On Existing Buildindgs (AREA)
  • Electric Cable Installation (AREA)

Abstract

本发明公开了一种螺栓承压环抱式输电铁塔角钢加固与矫正装置，包括加固角钢、抱箍和连接器；所述加固角钢放置在待加固角钢两肢内侧，所述的加固角钢轴线方向与待加固角钢平行，加固角钢的两肢外壁与待加固角钢内壁贴合；所述的抱箍放置在加固角钢和待加固角钢的外侧，通过高强螺栓连接；所述的抱箍侧壁上设有三组螺纹孔，其中第一、第二组螺纹孔的轴线相互垂直，第一组螺栓穿过第一组螺纹孔对待加固角钢其中一肢外侧施加加固力，第二组螺栓穿过第二组螺纹孔对待加固角钢另一肢外侧施加加固力；第三组螺栓穿过第三组螺纹孔通过连接器对加固角钢施加加固力。

Description

一种螺栓承压环抱式输电铁塔角钢加固与矫正装置 技术领域
本发明涉及输电铁塔结构加固技术，特别涉及一种螺栓承压环抱式输电铁塔角钢加固与矫正装置。
背景技术
目前，输电塔结构本身存在承载力不足或后期损伤，最终导致构件的破坏，甚至引发输电塔结构的倒塌，严重影响人们的正常生产生活，严重的甚至影响灾害救援工作。对于已经发生屈曲破坏的输电塔角钢构件，轻微破坏的情况虽然角钢构件可以继续使用，但是已经发生变形只能更换，造成大量的材料资源浪费因此提高电网抵御自然灾害的能力，对于输电塔进行服役后的加固防护，对于输电塔进行破坏后的杆件进行修复，保证电网在严重的自然灾害下安全稳定运行及供电安全具有重要意义。
目前输电塔加固思路主要有两类：第一类是在输电塔的主材上通过各种方法加辅助材，或直接采用另一规格的构件替换原结构中易发生损坏的薄弱构件，以加强构件的承载能力，达到提升铁塔稳定性的目的；第二类是通过在输电塔的节间增设横隔面，增强输电塔薄弱节间的抗剪能力和整体稳定性，提升结构的整体承载能力。然而目前的加固方法大多需要对输电塔的原杆件打孔，导致对原杆件存在削弱，影响输电塔的传力路径和承载能力；或对原有的受力构件进行临时拆卸，这将使铁塔的塔材内力重分布，输电铁塔中的杆件受力更加复杂，导致输电铁塔的承载力确定不明确。
发明内容
基于以上研究现状，本发明的目的是提供一种环抱式螺栓承压输电铁塔角钢加固与矫正装置，主要是针对输电塔加固提出的适用于角钢构件的一种输电铁塔可拆卸式防屈曲加固与矫正角钢变形的装置。
本发明采用下述技术方案：
本发明提出的一种用于铁塔的环抱式螺栓承压输电铁塔角钢加固与矫正装置，包括加固角钢、抱箍、连接器、高强螺栓和加长螺栓；所述加固角钢放置在待加固角钢两肢内侧，所述的加固角钢轴线方向与待加固角钢平行，加固角钢的两肢外壁与待加固角钢内壁贴合；所述的抱箍放置在加固角钢和待加固角钢的外侧，通过高强螺栓连接；所述的抱箍侧壁上设有三组螺纹孔，其中第一、第二组螺纹孔的轴线相互垂直，第一组螺栓穿过第一组螺纹孔对待加固角钢其中一肢外侧施加加固力，第二组螺栓穿过第二组螺纹孔对待加固角钢另一肢外侧施加加固力；第三组螺栓穿过第三组螺纹孔通过连接器对加固角钢施加加固力。
进一步的，所述的连接器包括连接器支撑、销轴、支撑垫片，所述的支撑垫片通过销轴与两个连接器支撑相连，两个连接器支撑和支撑垫片能绕销轴进行旋转。
进一步的，所述的连接器支撑包括螺栓套筒和螺栓，所述的螺栓套筒的一端与销轴相连，螺栓套筒另一端与第四螺栓配合，所述第四螺栓压在加固角钢上。
本发明可以通过改变螺栓孔直径、三组螺栓的直径、螺栓孔数量和调整连接器角度和连接器两侧支撑长度，调整该加固装置的加固效果；对于特殊加固要求的待加固角钢，可以将加固角钢或抱箍沿待加固角钢轴线方向通长，从而提高整个待加固角钢的受压承载力；对于已经发生轻微屈曲变形的输电塔角钢构件，可 以将抱箍安装在变形位置后，通过调整中间圆弧钢板上的螺栓的螺距来实现对鼓曲角钢构件的顶升，使其复位，在左右两侧两侧也通过调整螺距来实现对角钢位置的约束，防治过度矫正。
本发明的有益效果是：
1.本发明提出一种环抱式螺栓承压输电铁塔角钢加固与矫正装置，可以根据加固要求对输电铁塔中承载不足的角钢构件进行加固，可以对已经发生屈曲破坏的输电塔角钢构件进行矫正修复，有效提高输电塔的整体稳定承载能力。
2.本发明无需现场对输电塔的原材料打孔，有效避免了有些待加固的输电塔由于地处偏远，导致施工用电的获取存在很大的困难从而施工难度较大的问题。
3.本发明无需对原有的受力构件进行临时拆卸，避免局部区域产生复杂的应力重分布，导致输电铁塔在加固过程中处于危险状态。
4.本发明中的抱箍侧壁上设有三组螺纹孔，左右两组螺纹孔的轴线相互垂直，且三组螺纹孔对应等间距分布，每个螺纹孔通过对应的加长螺栓对待加固角钢或者加固角钢施加一定的力。
5.本发明具有构造简单，维护方便，效果明显的优点，可以有效地提高输电塔杆件承载力和整体稳定性。
附图说明
为了更清楚地说明本发明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。
图1为一种环抱式螺栓承压输电铁塔角钢加固装置角钢杆件加固装置示意图；
图2为一种环抱式螺栓承压输电铁塔角钢加固装置角钢杆件加固装置示意 图；
图3为一种环抱式螺栓承压输电铁塔角钢加固装置俯视图；
图4为一种环抱式螺栓承压输电铁塔角钢加固装置连接器详图；
图5为一种环抱式螺栓承压输电铁塔角钢加固装置连接器详图；
图中：1原主材杆件，2加固角钢，3第一抱箍，4第二抱箍，5高强螺栓，6-1连接器支撑，6-1-1螺栓套筒，6-1-2螺栓，6-2销轴，6-3支撑垫片，7橡胶垫片，8-1加长螺栓，8-2加长螺栓，8-3加长螺栓。
具体实施方式
应该指出，以下详细说明都是例示性的，旨在对本申请提供进一步的说明。除非另有指明，本文使用的所有技术和科学术语具有与本申请所属技术领域的普通技术人员通常理解的相同含义。
需要注意的是，这里所使用的术语仅是为了描述具体实施方式，而非意图限制根据本申请的示例性实施方式。如在这里所使用的，除非上下文另外明确指出，否则单数形式也意图包括复数形式，此外，还应当理解的是，当在本说明书中使用术语“包含”和/或“包括”时，其指明存在特征、步骤、操作、器件、组件和/或它们的组合。
为了方便叙述，本发明中如果出现“上”、“下”、“左”“右”字样，仅表示与附图本身的上、下、左、右方向一致，并不对结构起限定作用,仅仅是为了便于描述本发明和简化描述，而不是指示或暗示所指的设备或元件必须具有特定的方位，以特定的方位构造和操作，因此不能理解为对本发明的限制。
相比于其他加固装置而言，本装置可以适应多种荷载模式作用，有效提高输电塔的整体稳定承载能力。装置完全为装配式，无需现场对输电塔的原材料打孔， 从而有效避免对输电塔整体结构的损伤，且降低了施工难度。无需对原有的受力构件进行临时拆卸，防止应力重分布而使铁塔在加固过程中处于危险状态。
本申请的一种典型实施方式中，如图2所示，定义截面所在平面为XY平面，沿主材轴向为Z向，其中Z轴与XY平面垂直。
本实施例公开的环抱式螺栓承压输电铁塔角钢加固与矫正装置，主要包括加固角钢2、第一抱箍3、第二抱箍4、高强螺栓5、连接器、橡胶垫片7、加长螺栓8-1、加长螺栓8-2、加长螺栓8-3等，加角钢板2置于原主材杆件1内侧，所述加固角钢2轴向与原主材杆件1轴线方向一致，所述抱箍设置在加固角钢2和原主材杆件1外圈，加长螺栓8-1穿过抱箍对连接器施力，连接器对加固角钢2施力；加长螺栓8-2、加长螺栓8-3穿过抱箍对原主材杆件1(待加固角钢)施力，即所述抱箍通过所述加长螺栓8-2、8-3与原主材杆件1(待加固角钢)形成挤压，所述加长螺栓8-1和连接器与加固角钢2也形成挤压。
具体的，在所述的抱箍侧壁上设有分别三组螺纹孔，左右两组螺纹孔的轴线相互垂直，三组螺纹孔对应等间距分布；且每组螺纹孔包括沿同一方向布置的多个螺纹孔，每个螺纹孔内安装有一个对应的加长螺栓。
本实施例中的原主材杆件1与加固角钢2与抱箍之间挤压，在加长螺栓8和连接器与原主材杆件1接触部位添加橡胶垫片，以防止螺栓在拧紧过程中对角钢构件造成损伤以及增大螺栓与角钢之间的摩擦力，防止加固装置沿杆件轴线方向运动。
进一步的，加固角钢2厚度小于等于原主材杆件1的厚度。
进一步的，抱箍沿轴向依次等距设置多个，可通过增加或减少抱箍数量来调整加固效果。
进一步的，加固角钢2进行切角处理，使得加固角钢与被加固贴合。
进一步的，上述的连接器6如图4、图5所示，其包括连接器支撑6-1、销轴6-2、支撑垫片6-3，所述的支撑垫片6-3通过销轴6-2与两个连接器支撑6-1相连，两个连接器支撑6-1和支撑垫片6-3可以绕销轴进行旋转来调整加固效果。
进一步的，所述的连接器支撑6-1包括螺栓套筒6-1-1和螺栓6-1-2，所述的螺栓套筒6-1-1与螺栓6-1-2配合，通过旋转螺栓套筒6-1-1可以调节螺栓6-1-2的长度，进而实现了连接器支撑6-1长度的调整，实现对加固角钢任意位置处的支撑约束。
进一步的，所述的抱箍由三部分的等分圆弧钢板组成，且圆弧钢板通过高强螺栓5连接；所述的抱箍曲率根据待加固角钢的肢长确定，使得抱箍能够与待加固角钢贴合；在本实施例中，所述的抱箍的三部分分别是：一个第一抱箍3和两个第二抱箍4，第一抱箍3的中心位置开设有通孔，第二抱箍4的非中心位置开设有通孔，且两个第二抱箍4的通孔的轴线相互垂直。
当原主材杆件1受轴向拉力或压力时，对于杆件的截面而言，增加本加固装置可以有效地将原主材杆件1上的应力分散到加固角钢2上，对于原主材杆件的薄弱截面，应力可以有效地分散至加固角钢2和抱箍夹具上，从而降低原主材杆件1所受应力，防止原主材受压屈曲。而当原主材受压失稳或局部屈曲时，对于角钢构件，加固角钢2可以增大受压截面面积，从而提高原主材杆件1的承载力和稳定性。同时，在原主材杆件1受压时，加长螺栓可起到加劲肋的作用，此时设在受压区的加固装置，可以起到提高受压构件的屈曲临界应力，抑制屈曲变形作用。
该装置基于钢结构设计基本原理提出一种新型的输电塔杆件加固与矫正方 法，可以在适应多种荷载模式作用，有效提高输电塔的整体稳定承载能力。
该装置无需现场对输电塔的原材料打孔，有效避免了而有些待加固的输电塔由于地处偏远，导致施工用电的获取存在很大困难从而施工难度较大，实施难度较大的问题。
该装置无需对原有的受力构件进行临时拆卸，防止应力重分布而使铁塔在加固过程中处于危险状态。
该装置构造简单，维护方便，效果明显，可以有效地提高输电塔杆件承载力和整体稳定性。
本专利的上述实施方案并不是对本发明保护范围的限定，本专利的实施方式不限于此，凡此种种根据本专利的上述内容，按照本领域的普通技术知识和惯用手段，在不脱离本专利上述基本技术思想前提下，对本专利上述结构做出的其它多种形式的修改、替换或变更，均应落在本专利的保护范围之内。

Claims (9)

  1. 一种用于铁塔的环抱式螺栓承压输电铁塔角钢加固与矫正装置，其特征在于，包括加固角钢、抱箍和连接器；所述加固角钢放置在待加固角钢两肢内侧，所述的加固角钢轴线方向与待加固角钢平行，加固角钢的两肢外壁与待加固角钢内壁贴合；所述的抱箍放置在加固角钢和待加固角钢的外侧，通过高强螺栓连接；所述的抱箍侧壁上设有三组螺纹孔，其中第一、第二组螺纹孔的轴线相互垂直，第一组螺栓穿过第一组螺纹孔对待加固角钢其中一肢外侧施加加固力，第二组螺栓穿过第二组螺纹孔对待加固角钢另一肢外侧施加加固力；第三组螺栓穿过第三组螺纹孔通过连接器对加固角钢施加加固力。
  2. 如权利要求1所述的用于铁塔的环抱式螺栓承压输电铁塔角钢加固与矫正装置，其特征在于，所述的连接器包括连接器支撑、销轴、支撑垫片，所述的支撑垫片通过销轴与两个连接器支撑相连，两个连接器支撑和支撑垫片能绕销轴进行旋转。
  3. 如权利要求2所述的用于铁塔的环抱式螺栓承压输电铁塔角钢加固与矫正装置，其特征在于，所述的连接器支撑包括螺栓套筒和螺栓，所述的螺栓套筒的一端与销轴相连，螺栓套筒另一端与第四螺栓配合，所述第四螺栓压在加固角钢上。
  4. 如权利要求1所述的用于铁塔的环抱式螺栓承压输电铁塔角钢加固与矫正装置，其特征在于，所述的抱箍由三个等分的圆弧钢板组成，且圆弧钢板通高强螺栓进行连接。
  5. 如权利要求1所述的用于铁塔的环抱式螺栓承压输电铁塔角钢加固与矫正装置，其特征在于，所述的抱箍曲率根据待加固角钢的肢长确定，使得抱箍能够与待加固角钢贴合。
  6. 如权利要求1所述的用于铁塔的环抱式螺栓承压输电铁塔角钢加固与矫正装置，其特征在于，所述连接器与加固角钢的接触部位设有橡胶垫片。
  7. 如权利要求1所述的用于铁塔的环抱式螺栓承压输电铁塔角钢加固与矫正装置，其特征在于，所述的第一组螺栓、第二组螺栓与待加固角钢的接触部位设有橡胶垫片。
  8. 如权利要求1所述的用于铁塔的环抱式螺栓承压输电铁塔角钢加固与矫正装置，其特征在于，所述的加固角钢进行切角处理。
  9. 如权利要求1所述的用于铁塔的环抱式螺栓承压输电铁塔角钢加固与矫正装置，其特征在于，所述的加固角钢厚度小于等于待加固角钢厚度。
PCT/CN2022/079996 2021-09-15 2022-03-09 一种螺栓承压环抱式输电铁塔角钢加固与矫正装置 WO2023040214A1 (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US17/917,172 US11802414B2 (en) 2021-09-15 2022-03-09 Bolt-bearing circumferential device for reinforcing and correcting angle irons of transmission tower

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202111080586.3A CN113789973B (zh) 2021-09-15 2021-09-15 一种螺栓承压环抱式输电铁塔角钢加固与矫正装置
CN202111080586.3 2021-09-15

Publications (1)

Publication Number Publication Date
WO2023040214A1 true WO2023040214A1 (zh) 2023-03-23

Family

ID=79183508

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2022/079996 WO2023040214A1 (zh) 2021-09-15 2022-03-09 一种螺栓承压环抱式输电铁塔角钢加固与矫正装置

Country Status (3)

Country Link
US (1) US11802414B2 (zh)
CN (1) CN113789973B (zh)
WO (1) WO2023040214A1 (zh)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113789973B (zh) * 2021-09-15 2022-05-24 山东大学 一种螺栓承压环抱式输电铁塔角钢加固与矫正装置

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110239585A1 (en) * 2010-04-01 2011-10-06 Korea Electric Power Corporation Reinforcement Device for Lateral Buckling Stress and Method of Engaging Reinforcement Device
JP2013151832A (ja) * 2012-01-25 2013-08-08 Okumura Corp 鉄骨部材の補剛構造及び方法
JP2013160023A (ja) * 2012-02-08 2013-08-19 Fuji Dengyosha:Kk 既設鋼管柱補強材及びその施工方法
JP2016125203A (ja) * 2014-12-26 2016-07-11 株式会社不二電業社 既設支柱管補強材及びその施工方法
CN206448599U (zh) * 2017-01-03 2017-08-29 广东电网有限责任公司电力科学研究院 一种输电杆塔角钢防风加固装置
CN207048441U (zh) * 2017-07-18 2018-02-27 吉林省送变电工程公司 一种塔材保护夹具
CN109025459A (zh) * 2018-08-28 2018-12-18 国网山东省电力公司电力科学研究院 一种具有加固作用的输电塔主材防腐装置及防腐方法
CN110700675A (zh) * 2019-10-24 2020-01-17 安徽汀阳电力设备有限公司 一种铁塔用修补加固装置
CN111576982A (zh) * 2020-04-28 2020-08-25 国网山东省电力公司电力科学研究院 一种输电塔角钢加固装置及方法
CN213205035U (zh) * 2020-05-29 2021-05-14 南方电网科学研究院有限责任公司 一种输电角钢塔斜材加固装置
CN214330155U (zh) * 2020-12-16 2021-10-01 张华伟 一种电力铁塔用修补加固装置
CN113789973A (zh) * 2021-09-15 2021-12-14 山东大学 一种螺栓承压环抱式输电铁塔角钢加固与矫正装置

Family Cites Families (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1403051A (en) * 1920-04-10 1922-01-10 Henry E Moore Steel tower
US1599742A (en) * 1925-12-21 1926-09-14 Frederick L Feisthamel Derrick construction
US1729743A (en) * 1927-05-10 1929-10-01 Jorgensen Aage Kjarsgaard Library-stack-supporting structure
US2073889A (en) * 1934-06-09 1937-03-16 William A Trout Framed structure
US2145232A (en) * 1937-06-24 1939-01-31 Missouri Rolling Mill Corp Steel tower member
US2664636A (en) * 1952-05-26 1954-01-05 Kenneth E Schneider Line holder
US3007232A (en) * 1958-09-04 1961-11-07 Mc Graw Edison Co Method of making columns
AT3748U1 (de) * 1999-05-20 2000-07-25 Stahlbau Guenther Grabmayr Ges Einrichtung zur befestigung eines steigbaums an einem mast
US6454232B1 (en) * 2000-07-06 2002-09-24 Steven A. Roth Stiffener apparatus for stabilizing a hanger rod
US6802169B2 (en) * 2002-03-18 2004-10-12 Robert J. Simmons Building frame structure
EP1739243B1 (en) * 2002-03-18 2007-04-04 Robert J. Simmons Building frame structure
US7918425B2 (en) * 2008-04-23 2011-04-05 Raytheon Company Universal antenna mount
KR101019425B1 (ko) * 2008-09-26 2011-03-07 한국전력공사 압축좌굴내력 보강기구 및 이의 체결 방법
KR20140137593A (ko) * 2013-05-23 2014-12-03 주식회사 원준하이테크 조적벽 내진 보강을 위한 보강용 선형부재의 단부 연결장치
CN107386759A (zh) * 2017-07-11 2017-11-24 深圳带路科技有限公司 一种竹形铁塔加固装置
CN107178242A (zh) * 2017-07-26 2017-09-19 广州大学 一种用于高压输电角钢塔主柱角钢的加固装置
CN109138479A (zh) * 2018-09-06 2019-01-04 山东电力工程咨询院有限公司 一种输电塔加固用摩擦型螺栓角钢紧固装置
JP6591026B1 (ja) * 2018-11-01 2019-10-16 株式会社アイ・ティ・シ・コンサルティング 既設構造物の補強装置および付帯設備取付装置
CN209620739U (zh) * 2019-03-09 2019-11-12 潍坊长安铁塔股份有限公司 一种角钢塔
CN111058672B (zh) * 2020-01-15 2021-11-19 山东大学 一种输电铁塔可拆卸式防屈曲加固装置
CN212642294U (zh) * 2020-06-05 2021-03-02 天津海能电力建设有限公司 一种输电铁塔加固装置
CN113027218A (zh) * 2021-03-20 2021-06-25 中电建十一局工程有限公司 一种新型通信铁塔加固专用模具
CN113152975A (zh) * 2021-04-22 2021-07-23 上海邮电设计咨询研究院有限公司 一种具有加固结构的内法兰单管塔

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110239585A1 (en) * 2010-04-01 2011-10-06 Korea Electric Power Corporation Reinforcement Device for Lateral Buckling Stress and Method of Engaging Reinforcement Device
JP2013151832A (ja) * 2012-01-25 2013-08-08 Okumura Corp 鉄骨部材の補剛構造及び方法
JP2013160023A (ja) * 2012-02-08 2013-08-19 Fuji Dengyosha:Kk 既設鋼管柱補強材及びその施工方法
JP2016125203A (ja) * 2014-12-26 2016-07-11 株式会社不二電業社 既設支柱管補強材及びその施工方法
CN206448599U (zh) * 2017-01-03 2017-08-29 广东电网有限责任公司电力科学研究院 一种输电杆塔角钢防风加固装置
CN207048441U (zh) * 2017-07-18 2018-02-27 吉林省送变电工程公司 一种塔材保护夹具
CN109025459A (zh) * 2018-08-28 2018-12-18 国网山东省电力公司电力科学研究院 一种具有加固作用的输电塔主材防腐装置及防腐方法
CN110700675A (zh) * 2019-10-24 2020-01-17 安徽汀阳电力设备有限公司 一种铁塔用修补加固装置
CN111576982A (zh) * 2020-04-28 2020-08-25 国网山东省电力公司电力科学研究院 一种输电塔角钢加固装置及方法
CN213205035U (zh) * 2020-05-29 2021-05-14 南方电网科学研究院有限责任公司 一种输电角钢塔斜材加固装置
CN214330155U (zh) * 2020-12-16 2021-10-01 张华伟 一种电力铁塔用修补加固装置
CN113789973A (zh) * 2021-09-15 2021-12-14 山东大学 一种螺栓承压环抱式输电铁塔角钢加固与矫正装置

Also Published As

Publication number Publication date
CN113789973A (zh) 2021-12-14
US11802414B2 (en) 2023-10-31
US20230272634A1 (en) 2023-08-31
CN113789973B (zh) 2022-05-24

Similar Documents

Publication Publication Date Title
CN111058672B (zh) 一种输电铁塔可拆卸式防屈曲加固装置
CN201373207Y (zh) 大拉杆复式织物膨胀节
WO2023040214A1 (zh) 一种螺栓承压环抱式输电铁塔角钢加固与矫正装置
WO2008092350A1 (fr) Ensemble bride, bride de raccord et procédé d'assemblage correspondant
CN106677591A (zh) 一种输电塔架角钢防屈曲加固装置
CN102383411A (zh) 模板转角定位装置及方法
CN110359554A (zh) 一种装配式框架结构梁柱耗能连接键
CN110802364A (zh) 一种产生相贯管焊接接头残余压应力的装置
CN112761375B (zh) 输电杆塔角钢防失稳加固装置
CN206545328U (zh) 一种能够调节钢筋端部间隙的钢筋高强度连接装置
CN207228624U (zh) 一种工具式钢筋混凝土异形柱模板
WO2021056923A1 (zh) 拉索式塔架、风力发电机组及连接装置
CN211313467U (zh) 一种输电塔角钢补强加固装置
CN211102483U (zh) 一种产生相贯管焊接接头残余压应力的装置
CN114046060B (zh) 一种基于角钢补强耗能的输电塔加固装置及方法
CN108222261B (zh) 一种全螺栓连接的钢结构节点及其组装方法
CN109184312B (zh) 一种装配式大尺度防屈曲支撑构件
CN208815783U (zh) 钢筋连接装置
CN206545426U (zh) 一种输电塔架角钢防屈曲加固装置
CN202202314U (zh) 模板转角定位装置
CN112814414A (zh) 一种针对输电杆塔角钢的防失稳加固装置及方法
CN220504625U (zh) 一种钢管混凝土柱加固装置
CN114909011B (zh) 一种楼板免损伤的可更换装配式梁柱节点
CN207176941U (zh) 一种用于轴心受压钢管稳定性加固的套管装置
CN113982186B (zh) 一种顶板可拆卸替换的装配式钢-混凝土组合梁及其制作方法

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 22868594

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE