According to the bearing capacity, it can be divided into friction type and pressure bearing type

事實上是設計方案計算方式上面有差別，摩擦型高強螺栓以板層間出現拖動作為承載力極限情況；承壓型高強螺栓以板層間出現拖動作為一切正常應用極限情況，而以連接毀壞作為承載力極限情況。

In fact, there are differences in the calculation methods of design schemes. The ultimate bearing capacity of friction type high-strength bolts is traction between plates; for pressure bearing high-strength bolts, the dragging between plates is regarded as the limit of all normal applications, and the failure of connection is taken as the ultimate condition of bearing capacity.

高強螺栓并不可以充分運用螺栓的潛力。在具體運用中，對十分關鍵的構造或承擔驅動力載荷的構造，尤其是載荷造成反方向地應力時，應當用摩擦型高強度螺拴，這時可把未充分發(fā)揮的螺栓潛力作為性貯備。除此之外的地區(qū)應選用承壓型高強螺栓連接以減少工程造價。

High strength bolts do not fully utilize the potential of bolts. In practical application, friction type high-strength bolts should be used for key structures or structures bearing driving force loads, especially when the loads cause reverse in-situ stress. In this case, the bolt potential not fully utilized can be used as safety reserve. In addition, bearing type high strength bolt connection should be used in other areas to reduce the project cost.

按施工技術分成：扭剪型高強螺栓和大六角高強螺栓。

According to the construction technology, it is divided into torsion shear high strength bolt and large hexagon high strength bolt.、

大六角高強螺栓歸屬于一般螺釘的高韌性級，而扭剪型高強螺栓則是大六角高強螺栓的改進版，以便更強工程施工。

The large hexagon high strength bolt belongs to the high toughness grade of the general screw, while the torsion shear type high strength bolt is an improved version of the large hexagon high strength bolt, so as to strengthen the engineering construction.

高強螺栓的工程施工務必先初擰后終擰，初擰高強螺栓要用沖擊性型電動扳手或扭距可調式電動扳手；而終擰高強螺栓有嚴苛的規(guī)定，終擰扭剪型高強螺栓務必用扭剪型電動扳手，終擰扭矩型高強螺栓務必用扭矩型電動扳手。

The construction of high-strength bolts must be carried out after the initial tightening, and the impact type electric wrench or torque adjustable electric wrench should be used for the initial tightening of high-strength bolts; however, there are strict regulations for the final tightening of high-strength bolts, the final tightening of torsional shear type high-strength bolts must use the torsional shear type electric wrench, and the final tightening of torque type high-strength bolts must use the torque type electric wrench.

大六角高強螺栓由一個螺栓，一個螺母，2個密封圈構成。扭剪型高強螺栓由一個螺栓，一個螺母，一個密封圈構成。

The large hexagon high strength bolt is composed of one bolt, one nut and two sealing rings. Torsion shear type high strength bolt is composed of a bolt, a nut and a sealing ring.

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