Vice President of Engineering Department
ENCN
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We take great care to ensure that the steel and cable connections are designed to be cost effective, aesthetically pleasing and functional. After a rigorously planned installation process, using strict quality control and safety measures, the majestic structure reveals a multitude of functional masterpieces. The tensile structure changes the structure of the building and elongates and lifts the wall beyond the space. Typical equipment that can be used to assist in the installation of tensioning structures includes cranes, engineering forklifts, booms, scaffolding and scissor lifts.
The support structure is a single layer plane cable net structure, which may be composed of a single cable net structural unit or a plurality of single cable net structures.
The spatial profiled steel structure divides the construction process of the complex space steel grid structure into the installation phase and the unloading support phase.
The initial shape is determined by the shape-finding process. The shape of the membrane surface has two types: a minimum curved surface (even stress distribution) and a balanced curved surface (uneven stress distribution).
adopting double-machine lifting method for segmental lifting, making temporary supporting frame at the cantilever end of cantilever truss, temporarily fixing the free end of cantilever truss, welding and connecting at high altitude Auxiliary rods.
The foundation project check and accept according to the requirements of the civil foundation drawing and cable-membrane structure installation. The acceptance scope includes the coordinates of the basic working point, the allowable deviation of each direction is ±5mm; the exact position and quantity of the embedded parts; the exact position and quantity of the anchor bolts, The grounding bolt can be biased by ±2mm; the anchor bolt and nut are free of defects. Anti-rust and anti-collision protection for anchor bolts and nuts. According to the construction and installation plan, the specific installation steps are detailed. When using a crane, attention must be paid to the secondary handling of the hoisting structural members, and the cranes enter and exit the road. According to the technical data of the crane used, plan the position and movement of the crane.
The steel structure is erected after partial assembly on the ground according to the construction and installation plan. In the secondary handling of the hoisting parts, it must be in accordance with the construction drawing, one-to-one correspondence, check clearly, and make the hoisting direction a clear sign to ensure a successful hoisting. Before hoisting, strictly check whether the dimensions of the joint parts of steel and steel components meet the design requirements. If there is any error, it can be hoisted after the ground correction.
According to the construction and installation plan, set up a safe and stable aerial work platform, and hoist other steel components and steel cables in order and connect them according to the construction drawing.
If you need more information about our membrane structure, please feel free to contact us, we will provide you with professional personnel for service, we will reply promptly after receiving the information.
1) After the completion of all civil works and exterior decoration works, the membrane structure be installed.
2) According to the construction and installation plan, the necessary steel components are installed and safe temporary fixing measures are taken. For the Small-scale engineering, steel components and membranes are hoisted together after assembly.
3) When the membrane fabric is unfolded, it is not allowed to walk on the membrane. If a person must work on the membrane, it is necessary to check that there is no sharp object under the membrane and wear a soft-soled work shoe.
1) Clean all the sites that need to park the membrane;
2) Lay a clean ground protective membrane after leveling the pre-selected site;
3) installation the accessories.
1) Spread the membrane fabric on the floor protection film in the installation direction and install all the accessories.
2) Set up a safe and stable aerial work platform according to the construction and installation plan
3) Lifting the membrane fabric and determining whether to bundle or unfold according to the construction and installation plan. The exact position of the membrane must be determined to ensure a successful lifting.
4) When the membrane fabric is unfolded, a temporary splint should be installed on the membrane. Strictly check the crack at the force of the fabric. It is found that the crack should be repaired in time. The film and cable are pulled in place with the tightener, and the high-altitude connection is completed at the fastest speed.
5) When the membrane fabric is hoisted, the wind should not be greater than four
6) Adjust the joint of the membrane cable appropriately to achieve uniform connection.
(1) Complete all installed adjustable parts according to the construction drawing.
(2) Adjust the connecting plate of the base seat in place.
(1) Strictly check the jack and load cell. Is the instrument and the force applying mechanism intact?
(2) Thoroughly inspect the connection joint between the membrane fabric and the steel cable and the steel member, and confirm that all the attachments at the edge of the membrane and the corner are well connected, and there is no case where the membrane is stressed.
(3) Carefully check the construction drawing and carefully confirm the displacement of the applied point and the force value under the prestressed state.
(4) Apply pre-tension to the overall structural system at the point of application using the force-applying tools such as the jack and the force measuring device according to the construction and installation plan. The force application process is carried out according to the number of steps determined by the installation plan and the displacement amount of each step. It is necessary to make an effective adjustment according to the Site specific situation.
(5) The interval between the application of the pre-tension in the last step and the previous step should be greater than 24 h to eliminate the creep of the film material. The force control standard is based on the displacement of the force point to the design range, and the tolerance is 10%.
