地腳螺栓常用的型號以及安裝方法

地腳螺栓一般用Q235鋼，即為光圓的。地腳螺栓螺紋鋼（Q345）強(qiáng)度大，做螺母的絲扣沒有光圓的容易。對于光圓地腳螺栓而言，埋深一般為其直徑的25倍，然后做一個(gè)120mm左右長的90度彎鉤。地腳螺栓的抗拉能力就是圓鋼本身的抗拉能力了，大小等于截面面積乘以抗拉強(qiáng)度設(shè)計(jì)值（140mpa）就是設(shè)計(jì)時(shí)的允許抗拉承載力。地腳螺栓一般用Q235鋼，即為光圓的。目前沒見過用螺紋的情況，不過要是受力需要的話也未嘗不可。螺紋鋼（Q345）強(qiáng)度大，做螺母的絲扣沒有光圓的容易。

對于光圓地腳螺栓而言，埋深一般為其直徑的25倍，然后做一個(gè)120mm左右長的90度彎鉤。如果螺栓直徑很大（如45mm）埋深太深的話，可以在螺栓端部焊方板，即做一個(gè)大頭就可以了（不過也是有一定要求的）。埋深和彎鉤都是為了保證螺栓與基礎(chǔ)的摩擦力，不至于使螺栓發(fā)生拔出破壞。所以，地腳螺栓的抗拉能力就是圓鋼本身的抗拉能力了，大小等于截面面積乘以抗拉強(qiáng)度值（140mpa）就是設(shè)計(jì)時(shí)的允許抗拉承載力。

常用的地腳螺栓的型號有：

六角頭螺栓GB/T5782-2000十字槽盤頭自攻螺釘GB845-85

標(biāo)準(zhǔn)型彈簧墊圈GB93-87十字槽沉頭自攻螺釘GB846-85

六角頭螺栓全螺紋GB/T5783-2000六方螺母C級GB/T41-2000

內(nèi)六角圓柱頭螺釘GB/T70.1-2000方頭螺栓C級GB8-88 

1、一次埋入法：澆灌混凝土?xí)r，將地腳螺栓埋入。當(dāng)高塔等以傾覆控制時(shí)，地腳螺栓宜采用一次埋入法。

2、預(yù)留孔法：設(shè)備就位，將孔洞打掃干凈，將地腳螺栓放入孔中，設(shè)備定位找正后再用比原基礎(chǔ)高一級的無收縮細(xì)石混凝土進(jìn)行澆灌，搗固密實(shí)。一次埋入之地腳螺栓中心至基礎(chǔ)邊緣的距離不應(yīng)小于2d（d為地腳螺栓直徑），且不應(yīng)小于15mm（d≤20時(shí)不應(yīng)小于10mm），并不小于錨板寬度的一半加50mm，當(dāng)不能滿足上述要求時(shí)，應(yīng)采取適當(dāng)措施，予以加強(qiáng)。結(jié)構(gòu)用的地腳螺栓直徑不宜小于20mm。當(dāng)承受地震作用時(shí)，應(yīng)采用雙螺母固定，或采用其它有效防止松動的措施，但地腳螺栓的錨固長度應(yīng)比非地震作用的錨固長度增加5d。

地腳螺栓的安裝規(guī)劃 地腳螺栓在基礎(chǔ)內(nèi)松動的處理在近擰緊地腳螺栓時(shí)，可能將螺栓拔活，此時(shí)應(yīng)先螺栓調(diào)整至原位置，并將螺栓周圍的基礎(chǔ)鏟出足夠的位置，然后在螺栓上焊縱橫兩個(gè)U形鋼筋，最后用水將坑內(nèi)清洗干凈并灌漿，待混凝土凝固到設(shè)計(jì)強(qiáng)度后再擰緊活地腳螺栓偏差的處理活地腳螺栓偏差的處理方法，大致與死地腳螺栓的方法相同，只是可以將地腳螺栓拔出來處理。如螺栓過長，可在機(jī)床上切去一段再套螺紋；如螺栓過短，可用熱鍛法伸長；如位置不符，用彎曲法矯正。

應(yīng)用行業(yè)適用于各種設(shè)備固定、鋼結(jié)構(gòu)基礎(chǔ)預(yù)埋件、路燈、交通指示牌、泵、鍋爐安裝、重型設(shè)備預(yù)埋固定等。 

我公司目前主要的加工設(shè)備有8000mm×3000mm龍門銑床2臺、10000mm×3000mm龍門刨床1臺、6000mm×3000mm龍門刨床2臺、6000mm×2000mm龍門刨床1臺、4000mm×1500mm龍門刨床1臺、大型搖臂鉆4臺以及其它小型設(shè)備共計(jì)數(shù)十臺套。

公司按照市場經(jīng)濟(jì)規(guī)律規(guī)范動作，法人治理結(jié)構(gòu)齊全，運(yùn)行機(jī)制靈活，組織結(jié)構(gòu)按照“以市場為導(dǎo)向，以銷售為龍頭”的要求構(gòu)建，兩頭在外，中間精干。公司注重嚴(yán)格管理，擁有一支高素質(zhì)的員工隊(duì)伍。公司建有全面應(yīng)用計(jì)算機(jī)輔助設(shè)計(jì)和三維運(yùn)動仿真、有限元分析等手段的設(shè)計(jì)系統(tǒng)，計(jì)量檢測手段先進(jìn)齊全，質(zhì)量體系完善，已通過ISO9001質(zhì)量體系的認(rèn)證，公司能夠?yàn)橛脩籼峁﹥?yōu)質(zhì)的產(chǎn)品和滿意的服務(wù)。

The anchor bolts are generally made of Q235 steel, which is light round. The anchor bolt rebar (Q345) has a high strength, and the thread of the nut does not have a light circle. For light round anchor bolts, the buried depth is generally 25 times its diameter, and then a 90 degree hook of about 120 mm length is made. The tensile strength of the anchor bolt is the tensile strength of the round steel itself. The size equal to the cross-sectional area multiplied by the tensile strength design value (140mpa) is the allowable tensile capacity of the design. The anchor bolts are generally made of Q235 steel, which is light round. I haven't seen threading at the moment, but it's not a bad idea if you need it. The strength of the rebar (Q345) is large, and the thread of the nut is not easy to be round.

For light round anchor bolts, the buried depth is generally 25 times its diameter, and then a 90 degree hook of about 120 mm length is made. If the bolt has a large diameter (such as 45mm) and the depth is too deep, you can weld the square plate at the end of the bolt, that is, you can make a big head (but there are certain requirements). Both the depth of the burial and the hooks are used to ensure the friction between the bolt and the foundation, so that the bolts are not pulled out. Therefore, the tensile strength of the anchor bolt is the tensile strength of the round steel itself. The size equal to the cross-sectional area multiplied by the tensile strength value (140mpa) is the allowable tensile capacity of the design.

Commonly used anchor bolts are:

Hex head bolt GB/T5782-2000 cross slot pan head tapping screw GB845-85

Standard spring washer GB93-87 cross recessed countersunk head tapping screw GB846-85

Hex head bolt full thread GB/T5783-2000 hexagonal nut C grade GB/T41-2000

Hexagon socket head cap screw GB/T70.1-2000 square head bolt C grade GB8-88

1. One-time embedding method: When pouring concrete, embed the anchor bolts. When the tower is controlled by the overturning, the anchor bolt should adopt the one-time embedding method.

2. Reserved hole method: the equipment is in place, the hole is cleaned, the anchor bolt is placed in the hole, and the equipment is positioned and corrected, and then the non-shrinking fine stone concrete higher than the original foundation is used for watering, tamping and compacting. . The distance from the center of the anchor bolt to the edge of the foundation shall not be less than 2d (d is the diameter of the anchor bolt), and shall not be less than 15mm (not less than 10mm when d≤20), not less than half of the width of the anchor plate. Add 50mm. When the above requirements are not met, appropriate measures should be taken to strengthen them. The diameter of the anchor bolts used for the structure should not be less than 20mm. When subjected to earthquakes, double nuts should be used, or other measures to prevent loosening should be used, but the anchor bolts should be anchored for 5 days longer than the non-seismic anchor lengths.

Installation of the anchor bolts The loosening of the anchor bolts in the foundation may loosen the bolts when the anchor bolts are tightened. In this case, the bolts should be adjusted to the original position and the foundation around the bolts should be scooped out enough. Then, the two U-shaped steel bars are welded vertically and horizontally on the bolts. Finally, the pits are cleaned and grouted with water, and the concrete is solidified to the design strength, and then the handle of the live-foot bolts is tightened to handle the deviation of the live-foot bolts. The bolts are the same, except that the anchor bolts can be pulled out. If the bolt is too long, a piece of thread can be cut on the machine tool; if the bolt is too short, it can be extended by hot forging; if the position is not consistent, it can be corrected by bending method.

The application industry is suitable for various equipment fixing, steel structure foundation embedded parts, street lamps, traffic signs, pumps, boiler installation, heavy equipment pre-buried and fixed.

The main processing equipment of our company currently has 2 sets of 8000mm×3000mm gantry milling machines, 1 set of 10000mm×3000mm planer, 2 sets of 6000mm×3000mm planer, 1 set of 6000mm×2000mm planer, 1 set of 4000mm×1500mm planer, large shake. A total of ten sets of arm drills and other small equipment were counted.

The company regulates its actions in accordance with the laws of the market economy. The corporate governance structure is complete, the operating mechanism is flexible, and the organizational structure is constructed in accordance with the requirements of “market-oriented, sales-oriented”, with two heads in the middle and the middle in the middle. The company pays attention to strict management and has a high-quality staff team. The company has a design system that comprehensively applies computer-aided design and three-dimensional motion simulation and finite element analysis. The measurement and detection methods are advanced and complete, and the quality system is perfect. It has passed the ISO9001 quality system certification, and the company can provide users with high-quality products and satisfaction. Service.

Company name: botou zhuoyuan mechanical equipment manufacturing co.,LTD
Registered address: jiaohe development zone, botou city, hebei province
Fax number: 0317-8031093
Contact information: 15369812793 (WeChat with the same number)  liansheng chu
Postcode: 062151
Enterprise email:1358827475@qq.com
Account Opening Bank: Botou Branch of Bank of China
Account number: 100399943203
Agricultural bank account number: 6228481739059615270