Full-automatic prestress system for foundation pit beam string structure
A fully automatic, prestressing technology, applied in the direction of electric vehicles, infrastructure engineering, infrastructure testing, etc., can solve the problems of difficult control of prestress loss, inability to add prestress, low efficiency of manual operation, etc., to save materials , prevent partial load force, easy installation effect
Pending Publication Date: 2022-04-26
上海巨鲲科技有限公司
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Problems solved by technology
[0003] In the prior art, the application and re-addition of the prestress of the string beam steel support in the foundation pit also requires manual handling of jacks and manual pressurization; manual operation is not only inefficient, but also inaccurate, and it is difficult to operate in the narrow space near the deep foundation pit. There are certain safety hazards; the prestress cannot be added quickly according to the monitoring situation, and the timeliness is poor; after the prestress is applied, the pressure must be maintained through the conversion structure, and the loss of prestress is not easy to control
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[0028] The invention will be further described below in conjunction with the accompanying drawings and specific embodiments.
[0029] see figure 1 , The full-automatic prestressing system of the string beam of the foundation pit is composed of a steel tie rod 1, a strut 2, a reinforced concrete crown / waist beam, a fully automatic prestressing structure 3, and an operating end 5.
[0030] see figure 1 , the fully automatic prestressed structure 3 and the strut 2 are connected by bolts, and are connected to the side wall of the reinforced concrete crown / waist beam. The fully automatic prestressing system can interact with the operator through wireless transmission, and after receiving instructions from the operator, controls the internal force of the strut to control the prestress of the entire tension beam.
[0031] see figure 1 , the operation terminal 5 is composed of a mobile terminal, a computer terminal, a handheld remote control, etc. The operation terminal can send in...
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The invention relates to a full-automatic prestress system for a foundation pit beam string structure. The full-automatic prestress system comprises a supporting rod and a full-automatic prestress structure which are connected with each other. A plurality of jack grooves are formed in the middle of the jack joint, and at least one jack parallel to the jack grooves is formed in each of two sides; a plurality of profile steel plugs corresponding to the sockets are arranged at the front part of the end plate; at least one threaded hole is formed in the socket, a bolt is mounted in the threaded hole from top to bottom, and the lower end of the bolt presses the slot of the profile steel plug to keep the telescopic plug horizontal and prevent the front part of the telescopic plug from upwarping; the box body is connected with the jack joint; a pressurization control device of the power unit can control the flow direction, the flow speed and the pressure; the plc control system is connected with the power unit and can automatically control the power unit, and is connected with the sensor unit and can read and display index data of each sensor in real time; the communication unit can realize wireless transmission and is connected with the plc control system to realize remote interaction.
Description
technical field [0001] The invention relates to a fully automatic prestressing system for tension beams in foundation pits, belonging to the technical field of building construction. Background technique [0002] In order to ensure the safety of the underground structure construction and the surrounding environment of the foundation pit, it is necessary to adopt support, reinforcement and protection measures for the side wall of the foundation pit and the surrounding environment. Whether it is a deep foundation pit project for high-rise buildings or subway construction, since most of them are excavated in cities, there are usually various structures such as traffic arteries, existing buildings or pipelines around the foundation pit. Safety, time saving, and cost saving, the steel structure internal support system is widely used. [0003] In the prior art, the application and re-addition of the prestress of the string beam steel support in the foundation pit also requires ma...
Claims
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IPC IPC(8): E02D17/04E02D17/02E02D33/00H02J7/35
CPCE02D17/04E02D17/02E02D33/00H02J7/35
Inventor 王震唐涛
Owner 上海巨鲲科技有限公司