GB50723-2011烧结机械设备安装规范(英文版)
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3.3 Anchor Bolt

3.3.1 The following requirements shall be met during installation of anchor bolts in a preset hole:

1 A preset hole shall be cleared before installation,and oil contaminant and rust on the anchor bolt shall also be removed;

2 Anchor bolt shall be perpendicular in a preset hole,which shall be more than 15mm from the wall of hole and shall not touch the bottom of hole.After the preliminary alignment,gap should be available around anchor bolt hole and equipment bolt hole;

3 Casting of concrete in the preset hole shall meet the requirements of design and the current national standard GB 50231 General Code for Construction and Acceptance of Mechanical Equipment Installation Engineering

4 The strength of concrete shall be over than 75% before tightening of anchor bolts,the tightening force of bolts shall be even;

5 Screw and gasket,gasket and equipment shall be contacted closely.The bevel washer shall be adopted when the upper surface of screw hole is a slope.

3.3.2 Anchor bolts of anchor plate shall be installed as fallows:

1 T-shaped anchor bolts and anchor plate shall be used together as specified in design;

2 Test through of T-shaped bolt shall be done before positioning of equipment,with direction of Tshape marked clearly;

3 Contact surface between anchor plate and foundation during installation of movable anchor plate,with anchor plate and foundation surface touched closely;

4 The part without thread of anchor bolt,and the anchor plate,shall be painted as specified in the design;

5 The anchor bolt shall be vertically installed in the position,while screw and anchor plate of double thread screw shall contacted evenly and closely,and the rectangular head of T-shape bolt shall be inserted into the rectangular groove as mark;

6 Before secondary grouting,sealing material in the preset hole shall meet the requirement as specified in the design technical document.

3.3.3 The tightening requirement of anchor bolt,if any,shall meet the requirement of design document.The bolt shall be long enough as the screw or longer than the screw.