地腳螺栓常用的型號以及安裝方法
時(shí)間：2016/2/2 10:38:01
瀏覽量：600
地腳螺栓一般用Q235鋼，即為光圓的。地腳螺栓螺紋鋼（Q345）強度大，做螺母的絲扣沒(méi)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(cháng)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度設計值（140mpa）就是設計時(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(méi)見(jiàn)過(guò)用螺紋的情況，不過(guò)要是受力需要的話(huà)也未嘗不可。螺紋鋼（Q345）強度大，做螺母的絲扣沒(méi)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(cháng)的90度彎鉤。如果螺栓直徑很大（如45mm）埋深太深的話(huà)，可以在螺栓端部焊方板，即做一個(gè)大頭就可以了（不過(guò)也是有一定要求的）。埋深和彎鉤都是為了保證螺栓與基礎的摩擦力，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度值（140mpa）就是設計時(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(pán)頭自攻螺釘GB845-85
標準型彈簧墊圈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：澆灌混凝土時(shí)，將地腳螺栓埋入。當高塔等以?xún)A覆控制時(shí)，地腳螺栓宜采用一次埋入法。
2、預留孔法：設備就位，將孔洞打掃干凈，將地腳螺栓放入孔中，設備定位找正后再用比原基礎高一級的無(wú)收縮細石混凝土進(jìn)行澆灌，搗固密實(shí)。一次埋入之地腳螺栓中心至基礎邊緣的距離不應小于2d（d為地腳螺栓直徑），且不應小于15mm（d≤20時(shí)不應小于10mm），并不小于錨板寬度的一半加50mm，當不能滿(mǎn)足上述要求時(shí)，應采取適當措施，予以加強。結構用的地腳螺栓直徑不宜小于20mm。當承受地震作用時(shí)，應采用雙螺母固定，或采用其它有效防止松動(dòng)的措施，但地腳螺栓的錨固長(cháng)度應比非地震作用的錨固長(cháng)度增加5d。
地腳螺栓的安裝規劃 地腳螺栓在基礎內松動(dòng)的處理在近擰緊地腳螺栓時(shí)，可能將螺栓拔活，此時(shí)應先螺栓調整至原位置，并將螺栓周?chē)幕A鏟出足夠的位置，然后在螺栓上焊縱橫兩個(gè)U形鋼筋，最后用水將坑內清洗干凈并灌漿，待混凝土凝固到設計強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(lái)處理。如螺栓過(guò)長(cháng)，可在機床上切去一段再套螺紋；如螺栓過(guò)短，可用熱鍛法伸長(cháng)；如位置不符，用彎曲法矯正。
應用行業(yè)適用于各種設備固定、鋼結構基礎預埋件、路燈、交通指示牌、泵、鍋爐安裝、重型設備預埋固定等。
我公司目前主要的加工設備有8000mm×3000mm龍門(mén)銑床2臺、10000mm×3000mm龍門(mén)刨床1臺、6000mm×3000mm龍門(mén)刨床2臺、6000mm×2000mm龍門(mén)刨床1臺、4000mm×1500mm龍門(mén)刨床1臺、大型搖臂鉆4臺以及其它小型設備共計數十臺套。
公司按照市場(chǎng)經(jīng)濟規律規范動(dòng)作，法人治理結構齊全，運行機制靈活，組織結構按照“以市場(chǎng)為導向，以銷(xiāo)售為龍頭”的要求構建，兩頭在外，中間精干。公司注重嚴格管理，擁有一支高素質(zhì)的員工隊伍。公司建有全面應用計算機輔助設計和三維運動(dòng)仿真、有限元分析等手段的設計系統，計量檢測手段先進(jìn)齊全，質(zhì)量體系完善，已通過(guò)ISO9001質(zhì)量體系的認證，公司能夠為用戶(hù)提供優(yōu)質(zhì)的產(chǎn)品和滿(mǎn)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
http://zhuoyuanjixie.com