Steel-truss supporting method for construction of cap beam of pier
A support method and technology for steel trusses, applied in bridges, bridge construction, erection/assembly of bridges, etc., can solve problems such as unfavorable installation and dismantling of steel trusses, unfavorable pier column formwork, and difficulty in maintaining balance, shortening the dismantling operation time, improving the Construction safety and the effect of shortening the process time
Active Publication Date: 2017-01-18
CHINA METALLURGICAL CONSTR ENG GRP
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[0002] The traditional steel truss support method for the construction of bridge pier cap beams is usually that after the concrete pier columns are formed, the holes reserved on the pier columns are penetrated into profiled steel or steel rods to form steel truss support points, and the support points are horizontally lapped with I-beams Then lay small steel plates directly to install jacks, and symmetrically install connecting steel trusses to form a cover beam construction platform; during construction, the installed steel rods will rotate, making it difficult to maintain balance. Welding is required on the contact parts of connecting I-beams and small steel plates connection, even welding the I-beams and steel rods together; when the load of the formed steel truss construction platform changes unbalanced, the steel truss will deviate in both vertical and horizontal directions on the steel rods at the supporting points Unsafe conditions; it is not conducive to the installation and removal of steel trusses, and the process of working at heights takes a long time, and the work efficiency is low, which is not conducive to the installation of pier column formwork and concrete molding construction on bridge pier cover beams; this is mainly the construction of bridge pier cover beams The construction technology and method of steel truss support need to be improved
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[0019] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments. A steel truss support method for bridge pier cap beam construction, comprising the steps of:
[0020] (1) According to the technical requirements, after the concrete pier 1 is poured, a reserved hole is formed on the upper part of the concrete pier 1; the steel rod 9 is penetrated into the reserved hole of the concrete pier 1;
[0021] (2) According to the process requirements, the steel support 2 is symmetrically installed at both ends of the steel rod, and the platform lifting adjustment device 3 is symmetrically installed on the steel support 2; the steel support 2 is a steel structure support capable of bearing weight, and the platform lifting adjustment device 3. It can be lifted and lowered, and it can be lifted by pneumatic, hydraulic or mechanical devices to adjust the height of the platform;
[0022] (3) According to the proce...
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The invention discloses a steel-truss supporting method for construction of a cap beam of a pier. The steel-truss supporting method comprises the following steps: enabling steel rods to penetrate into reserved holes formed at the upper parts of concrete pier columns; installing steel supports symmetrically at the two ends of the steel rods, and installing platform-lifting adjustment devices symmetrically on the steel supports; arranging a bearing steel-truss platform on the platform-lifting adjustment devices; supporting the bearing steel-truss platform on the platform-lifting adjustment devices of the two adjacent concrete pier columns; arranging cushion blocks on the bearing steel-truss platform, installing sized steel templates on the cushion blocks, and casting concrete to form a concrete cap beam of the pier. The steel-truss supporting method disclosed by the invention has the advantages that the working procedure time of the construction of the cap beam of the pier can be shortened, fast formation of the steel-truss support for construction of the cap beam of the pier is ensured, the construction safety of a supporting system is improved, the stability of the template of the cap beam of the pier is realized, and the technical effect for the quality of the concrete casting compactness of the cap beam is guaranteed; in disassembly, the removal is carried out according to the reverse order of installation, the time for disassembling operation can be greatly shortened, the working procedure time of high-altitude operation is shortened, and the safety of disassembling operation is improved.
Description
technical field [0001] The invention relates to a steel truss support method for bridge pier cover beam construction, in particular to a steel truss support method for bridge pier cover beam construction. Background technique [0002] The traditional steel truss support method for the construction of bridge pier cap beams is usually that after the concrete pier columns are formed, the holes reserved on the pier columns are penetrated into profiled steel or steel rods to form steel truss support points, and the support points are horizontally lapped with I-beams Then lay small steel plates directly to install jacks, and symmetrically install connecting steel trusses to form a cover beam construction platform; during construction, the installed steel rods will rotate, making it difficult to maintain balance. Welding is required on the contact parts of connecting I-beams and small steel plates connection, even welding the I-beams and steel rods together; when the load of the fo...
Claims
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IPC IPC(8): E01D21/00
CPCE01D21/00
Inventor 陈国民曾高全郎欢李涛
Owner CHINA METALLURGICAL CONSTR ENG GRP