Full-prefabricated assembled crash barrier
A technology of prefabricated assembly and anti-collision guardrails, which is applied to bridge parts, bridges, buildings, etc., can solve the problems of inability to provide space for piercing and inconvenient construction of piercing, and achieve small negative impact on construction, convenient installation, and enhanced shear resistance The effect of intensity
Active Publication Date: 2014-07-09
SHANGHAI URBAN CONSTR DESIGN RES INST GRP CO LTD
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Problems solved by technology
Due to structural problems, the past anti-collision barrier structure cannot provide more space for penetration, and it is inconvenient for construction.
Method used
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[0028] The fully prefabricated and assembled anti-collision guardrail of the present invention is composed of several prefabricated guardrail segments which are sequentially assembled, connected and fixed. For some prefabricated guardrail segments, except for the slightly different structures of the first part and the tail part (simplifying the shear part on one side), the other prefabricated guardrail segments have the same structure for batch prefabricated production. The prefabricated guardrail section can be completely prefabricated in the factory without cast-in-place parts, which can avoid uncivilized and environmentally friendly construction problems such as large amount of on-site welding, construction noise, and dust. The prefabricated guardrail is longitudinally segmented as a whole, and multiple prefabricated guardrail segments are assembled on site. The segment length can be segmented according to the transportation capacity and on-site hoisting capacity in addition...
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The invention discloses a full-prefabricated assembled crash barrier, which is formed by fixedly connecting and sequentially assembling a plurality of prefabricated barrier segments. First shear-resistant parts for being in clamped fit with one prefabricated barrier segment in front are disposed on one side of each prefabricated barrier segment, second shear-resistant parts for being in clamped fit with one prefabricated barrier segment in rear are disposed on the other side of each prefabricated barrier segment, and the plurality of prefabricated barrier segments are fixedly connected with one another in such manner than the first shear-resistant parts and the second shear-resistant parts are assembled together. A third shear-resistant part for being in clamped fit with a bridge deck superstructure is disposed at the bottom of each prefabricated barrier segment and fixedly connected with the bride deck superstructure through connectors. The shear-resistant parts are disposed on the prefabricated barrier segments, so that mutual positioning is facilitated, shear resistance in assembly is enhanced, and the full-prefabricated assembled crash barrier has the advantages of inconvenience in installation, low adverse construction impact and the like.
Description
technical field [0001] The invention relates to the technical field of roads and bridges, in particular to a fully prefabricated and assembled anti-collision guardrail. Background technique [0002] The anti-collision guardrail of the bridge structure is generally formed by connecting and fixing multiple guardrail segments. In the past, the cast-in-place method of brackets was mostly used, that is, the construction process of first setting up fixed brackets on the upper structure of the bridge deck, and then pouring concrete on the brackets. With the development and progress of social civilization, the above-mentioned cast-in-place anti-collision barriers do not meet people's requirements for safe, civilized and environmentally friendly construction due to the negative impacts of environmental pollution, construction noise, and dust caused by on-site construction. [0003] At present, a partially prefabricated assembled anti-collision barrier structure is widely used in rail...
Claims
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IPC IPC(8): E01D19/10
Inventor 沙丽新吴刚陈剑明黄锦源刘晓苹刘佳
Owner SHANGHAI URBAN CONSTR DESIGN RES INST GRP CO LTD