Assembled blast wall and inverted type road lunge combination protection device

Abstract

The invention relates to a protective device combined by fabricated explosion-protection wall and turnover road needle, belonging to the structure engineering field. Two fabricated explosion-protection walls are combined with a turnover road needle respectively to form the protective device. Two explosion-protection walls all adopt double-layer steel face plate with internal reinforced rib. According to setting demand and weight sand and concrete are filled in it respectively. Two adjustable oblique braces are set at the back of each component. The turnover road needle has two statuses. When it is put up it is the road block to prevent vehicle impacting object directly and when it is put down it is the vehicle decelerating device. The combined device can prevent or decrease the damage effect to building structure by impact explosion of vehicle bomb. It can separate or block the protective object and the explosion source as far as possible. It can be set quickly and neatly according to different threat levels and important degree for object. It is suitable for building with design performance opened to the outside world and important building without conditions to preset protective establishment round.

Description

technical field [0001] The invention relates to a protection device for preventing or reducing damage to building structures caused by impact explosions, and belongs to the field of structural engineering. Its main purpose is to protect the building structure from car bombs, isolate and block the target to be protected from the explosion source as much as possible, and can be quickly and flexibly set according to different explosion threat levels and the importance of the target. Background technique [0002] At present, the research on explosion-proof walls and automobile roadblocks at home and abroad mainly consists of the following forms: ① fixed explosion-proof walls and anti-collision facilities. This kind of explosion-proof wall is generally pre-built with a reinforced concrete structure with high reinforcement ratio, and the anti-collision facilities adopt reinforced concrete anti-collision bollards and anti-collision low walls. There must be sufficient embedding dep...

AI Technical Summary

Problems solved by technology

This type of explosion-proof wall is mainly a flexible explosion-proof wall that can produce large deformation. This type of explosion-proof wall mainly includes: water body explosion-proof wall, flexible fabric explosion-proof wall, high-strength plastic assembly type explosion-proof wall, etc. The advantage of this type of explosion-proof wall is that it is lighter in weight. The long-distance explosion shock wave has a certain protective effect, but the disadvantage is that the resistance is generally low, and the effect of preventing the impact and explosion of car bombs is poor

The railing mainly plays the role of anti-blocking warning, and cannot prevent the direct impact of vehicles.

It can be seen that the above-mentioned explosion-proof walls and anti-collision facilities have a certain range of adaptation and conditions, such as fixed reinforced concrete explosion-proof walls and anti-collision columns, etc., which need to be built in advance at ordinary times. Gravity-type explosion-proof walls and protective soil bags, It needs a certain setting space, setting time and on-site operation materials, and the flexible explosion-proof wall can only protect the long-distance explosion shock wave, and the cost is relatively high. Attack Protection Requirements

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