2類核心支架！濟南電纜橋架，抗震承重雙達標

　　Type 2 core bracket! Jinan cable tray, seismic and load-bearing double standard

　　在濟南建筑、工業電力布線中，電纜橋架的穩固性全靠調節支架“托底”--很多人只關注橋架本體品質，卻忽略了支架的關鍵作用，殊不知支架選型不當，會導致橋架偏移、脫落，甚引發電氣事故。濟南電纜橋架常用的調節支架主要分兩類：四桿掉落式與角鋼支架，搭配按需加裝的抗震支架，適配不同現場工況，今天就結合濟南本地實操案例與實打實的數據，跟大伙嘮透電纜橋架調節支架的選型、用途與核心優勢。

　　In the construction and industrial power wiring of Jinan, the stability of cable trays relies entirely on adjusting the brackets to "support the bottom" - many people only focus on the quality of the tray body, but ignore the key role of the brackets, unaware that improper selection of brackets can lead to tray displacement, detachment, and even cause electrical safety accidents. The commonly used adjustment brackets for cable trays in Jinan are mainly divided into two categories: four-bar drop type and angle steel brackets, combined with seismic brackets installed as needed to adapt to different on-site working conditions. Today, based on local practical cases and actual data in Jinan, we will talk about the selection, use, and core advantages of cable tray adjustment brackets.

　　先看四桿掉落式調節支架，主打靈活可調、適配性強，是濟南電纜橋架安裝的常用款。這類支架采用四桿聯動結構，可精準調節橋架高度與水平度，調節范圍可達50-300mm，誤差控制在2mm以內，能輕松適配現場地面、墻面不平整的問題，避免橋架傾斜導致電纜受力不均。實測顯示，單組四桿掉落式支架可承重80-120kg，適配寬度300-800mm的橋架，搭配防滑墊片，防滑效果提升45%，有效防止橋架滑動，廣泛應用于濟南寫字樓、住宅小區等民用建筑的電纜布線場景。

　　First, let's take a look at the four-bar drop adjustable bracket, which emphasizes flexibility, adjustability, and strong adaptability. It is a commonly used model for installing cable trays in Jinan. This type of bracket adopts a four-bar linkage structure, which can accurately adjust the height and levelness of the cable tray. The adjustment range can reach 50-300mm, with an error controlled within 2mm. It can easily adapt to the problem of uneven ground and wall surfaces on site, avoiding cable stress caused by cable tray tilting. Tests have shown that a single set of four-bar drop off brackets can bear a weight of 80-120kg, suitable for bridge frames with a width of 300-800mm. Paired with anti slip pads, the anti slip effect is improved by 45%, effectively preventing bridge frame sliding. It is widely used in cable wiring scenarios in civil buildings such as office buildings and residential communities in Jinan.

　　四桿掉落式支架的核心優勢的是便捷安裝與后期維護，2名工人1小時可完成15-20組安裝，比傳統支架安裝效率提升30%。其采用冷軋鋼板一體成型，表面經過熱鍍鋅處理，耐腐蝕性能優異，可適應濟南潮濕、多粉塵的環境，使用壽命達25年以上，比未鍍鋅支架壽命提升60%。同時，支架可重復拆卸利用，后期電纜改造時無需重新更換，大幅降低施工與維護成本，濟南某寫字樓項目采用此類支架，累計節省后期改造成本近20%。

　　The core advantage of the four-bar drop bracket is its convenient installation and post maintenance. Two workers can complete 15-20 sets of installations in one hour, which is 30% more efficient than traditional bracket installations. It is made of cold-rolled steel plates and is integrally formed. The surface is treated with hot-dip galvanizing, which has excellent corrosion resistance and can adapt to the humid and dusty environment in Jinan. Its service life is over 25 years, which is 60% longer than that of non galvanized brackets. At the same time, the bracket can be disassembled and reused, so there is no need to replace the cable during later cable renovation, greatly reducing construction and maintenance costs. A certain office building project in Jinan adopted this type of bracket, saving nearly 20% of the later renovation costs.

　　角鋼支架主打重載適配，是濟南工業場景的“硬核之選”。這類支架采用50×50×5mm或75×75×7mm規格角鋼焊接成型，結構堅固，承重能力遠超四桿掉落式支架，單組可承重200-350kg，適配寬度800-1500mm的重型橋架，適合鋪設多組工業電纜、高壓電纜的場景，比如濟南工業園區、廠房、化工基地等。實測數據顯示，角鋼支架的抗扭強度達1200N·m，比四桿掉落式支架提升85%，長期承載重型電纜無變形、無松動，穩定性拉滿。

　　The angle steel bracket focuses on heavy-duty adaptation and is the "hardcore choice" for industrial scenes in Jinan. This type of bracket is welded with 50 × 50 × 5mm or 75 × 75 × 7mm angle steel, with a sturdy structure and a load-bearing capacity far exceeding that of a four-bar drop bracket. A single group can bear 200-350kg, suitable for heavy-duty cable trays with a width of 800-1500mm. It is suitable for laying multiple groups of industrial cables and high-voltage cables, such as in Jinan Industrial Park, factories, chemical bases, etc. The measured data shows that the torsional strength of the angle steel bracket reaches 1200N · m, which is 85% higher than that of the four-bar drop bracket. It can bear heavy cables for a long time without deformation or looseness, and is stable when fully pulled.

　　按需加裝抗震支架，是濟南電纜橋架防護的“加分項”，尤其適配地震設防區域。根據GB 50981-2014《建筑機電工程抗震設計規范》，濟南作為地震設防烈度6-7度地區，工業建筑、高層建筑的電纜橋架必須加裝抗震支架。抗震支架與調節支架配套使用，可抵御0.3g地震加速度，地震時能限制橋架水平位移不超過10mm，豎向位移不超過5mm，將橋架脫落風險降低95%以上，濟南多數工業項目、高層住宅均已強制配套安裝。

　　Installing seismic supports as needed is a "bonus point" for the safety protection of Jinan cable trays, especially suitable for earthquake resistant areas. According to GB 50981-2014 "Code for Seismic Design of Building Mechanical and Electrical Engineering", as an area with seismic fortification intensity of 6-7 degrees, cable trays in industrial and high-rise buildings in Jinan must be equipped with seismic supports. The anti-seismic bracket is used in conjunction with the adjustment bracket, which can withstand an earthquake acceleration of 0.3g. During an earthquake, it can limit the horizontal displacement of the bridge frame to no more than 10mm and the vertical displacement to no more than 5mm, reducing the risk of bridge frame detachment by more than 95%. Most industrial projects and high-rise residential buildings in Jinan have mandatory installation.

　　濟南電纜橋架支架的選型，需貼合現場實際工況，避免“一刀切”。民用建筑、輕型電纜布線，優先選四桿掉落式支架，兼顧靈活性與性價比；工業重載、高壓電纜場景，優先選角鋼支架，保障承重與穩定性；地震設防區域，無論哪種支架，都需配套加裝抗震支架，守住底線。數據顯示，濟南規范選型并加裝抗震支架的項目，電纜橋架因外力、地震導致的故障發生率不足0.5%，遠低于未規范選型的3.2%。

　　The selection of cable tray supports in Jinan should be tailored to the actual working conditions on site, avoiding a one size fits all approach. For civil buildings and lightweight cable wiring, priority should be given to four pole drop off brackets, taking into account flexibility and cost-effectiveness; In industrial heavy-duty and high-voltage cable scenarios, angle steel brackets are preferred to ensure load-bearing and stability; In earthquake resistant areas, regardless of the type of support, anti-seismic support must be installed to maintain the safety bottom line. Data shows that for projects in Jinan that require standardized selection and installation of seismic supports, the failure rate of cable trays caused by external forces and earthquakes is less than 0.5%, far lower than the 3.2% that is not standardized.

　　除了選型，支架的安裝細節也影響整體穩定性。濟南本地合規施工中，支架間距嚴格遵循規范：輕型橋架支架間距不超過1.5m，重型橋架不超過1.2m，抗震支架間距不超過2.0m，每間隔3組普通支架加裝1組加固支架，進一步提升整體牢固度。同時，支架與墻面、頂面的固定需采用膨脹螺栓，螺栓植入深度不低于80mm，確保固定強度，避免后期松動。

　　In addition to selection, the installation details of the bracket also affect overall stability. In local compliant construction in Jinan, the spacing between supports strictly follows the specifications: the spacing between light bridge supports should not exceed 1.5m, the spacing between heavy bridge supports should not exceed 1.2m, and the spacing between seismic supports should not exceed 2.0m. For every 3 sets of ordinary supports, 1 set of reinforced supports should be added to further enhance the overall firmness. At the same time, expansion bolts should be used to fix the bracket to the wall and top surface, with a bolt insertion depth of not less than 80mm, to ensure the fixing strength and avoid loosening in the later stage.

　　總結來說，濟南電纜橋架的穩固性，核心在于2類調節支架的精準選型與規范安裝--四桿掉落式適配民用輕載，角鋼支架扛起工業重載，搭配抗震支架筑牢防線。依托精準的調節范圍、的承重能力與適配性，這些支架不僅契合濟南各類建筑、工業場景的布線需求，更能保障電纜長期穩定運行，避開隱患，成為濟南電力傳輸系統中不可或缺的“隱形支撐”。

　　In summary, the stability of Jinan cable trays lies in the precise selection and standardized installation of two types of adjustment brackets - four bar drop type suitable for civilian light loads, angle steel brackets for industrial heavy loads, and seismic brackets to build a strong safety line. Relying on precise adjustment range, super strong load-bearing capacity and adaptability, these brackets not only meet the wiring needs of various buildings and industrial scenes in Jinan, but also ensure the long-term stable operation of cables, avoid safety hazards, and become an indispensable "hidden support" in Jinan's power transmission system.

　　本文由 濟南電纜橋架  友情奉獻.更多有關的知識請點擊  http://www.zkhtkj.cn/  真誠的態度.為您提供為的服務.更多有關的知識我們將會陸續向大家奉獻.敬請期待.

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