frame columns, shear walls); For the project under drawing review, it shall be adjusted that there is no vertical stressed component to be submitted for approval; For projects that have passed the drawing review, it is also recommended to change the design and cancel the use of assembly type for vertical stressed members.

Obviously, it is an open and aboveboard decision, but it has become a hidden front.

The so-called “special situation” is that some local governments (even the Ministry of Construction and the Central Government) force the promotion of precast PC buildings, which has become a politically correct ideology, So that the industry hardly dare to say “No “In terms of safety, quality, quality, cost and other aspects, the cast PC is obviously inferior to the cast-in-place structural RC, but how was it kidnapped to become the national will? The cast concrete PC was originally a technology that was eliminated in the 1960s and 1970s, but in recent years, a large number of Japanese experts and professors who returned from abroad are popularizing the cast concrete in Japan, so what should be done in China, and there is no mistake in benchmarking advanced, Even small Japan should learn from its strengths.

See the figure below: The picture is from the “Civil Engineering Bar”, and the message is from the Nanjing Construction Commission and the Quality Supervision Station.

According to the requirements of xx Municipal Construction Commission, when the project is submitted for drawing review, precast buildings should not use vertical load-bearing components (i.e.

1.

Guide: In December last year, the WeChat official account “Wekong” published the Research on the Impossibility of Assembled Buildings, pointing out that some local governments strongly promote precast buildings, pointing out that precast buildings do not improve productivity, do not have cost advantages, or even significantly increase costs, and their quality cannot be guaranteed, so they are not worth promoting.

If the application of a technology has no cost advantage and reduces the safety quality level, then as a rational economic man, there is no reason not to use this technology, unless there are special circumstances.

However, is the proportion of Japanese precast PC buildings really that high? 2.

Yesterday, the official WeChat account “CIBU Bar” also published the article “Is the wind of precast buildings to be blocked?”.

Ring Clutch

Path to find the true proportion of Japanese precast PC buildings 2.1 Enter the official Japanese statistics website 2.1.1 Search statistics See Japanese website: https://www.e-stat.go.jp/2.1.1.1 Enter – organize investigation of statistics by industry according to the classification of government organizations 2.1.1.2 Enter – Ministry of Land, Land and Transport 2.1.1.3 Enter – statistical investigation of construction work (work), including: statistical investigation of construction work, open (updated) date February 28, 2018 [2578 pieces] residential work statistics [3342 pieces] 2.1.1.4 Enter – residential work statistics [3342 pieces] 2.1.1.5 Select – year [211 pieces] – February 28, 2017.