悬索桥牵引系统及猫道架设工程(国外英文资料).doc

悬索桥牵引系统及猫道架设工程(国外英文资料) Suspension bridge traction system and cat road project Second, the overview Two, traction system The traction system is the power system of the main cable. Mainly undertake the work of cat road erection, cable traction, cable clamp and sling. According to the actual situation of the bridge project in wanzhou, it is decided to adopt the pull system of the frame type tractor. This system consists of two anchorage respectively set up in the south, north on, vice hoist, phi 36 pulling cable, phi 28 back to pull the rope and pulled, anchorage block and tackle door frame, the top of the tower door frame block and tackle, cat door frame and block and tackle, and on the top of drum. 2, cat, The cat lane is the construction road which is set up for the main line. The catwalks of the bridge over the two Bridges are set in the lower part of the two main cables. Each cat is divided into three segments: the south, the middle and the north. Each segment is made of eight parallel phi 48 wire mesh, beams, handrails, side nets and columns. The cats top layer is equipped with a cats wheel, a cats doorframe and phi 28. There are five pedestrian passageways between the upper and lower cat channels, one on each side. In the article 3. Because the width of the cat is small and the weight is light, there are two wind lines in the lower part of the cat, which are connected to the cat way through the sling. The determination of method of erection of traction system The development of traction system should strive for simple economy and minimize the use of channel. The usual method is to take the first line of the tracer cable and pull it across the river, using the lead cable to guide the rope through the air. Through extensive consultation and comparison of various erection methods, it is decided to adopt the towing phi 16 leading line from the south to the north across the river. Then the upstream side traction system is set up. The downstream traction system is se